Home

TM 9-2320-302-10 - JATONKAM35s HOME ON THE WEB

1. 0010 00 3 ELECTRICAL SYSTEM One or More Lighting Systems Not ENGINE 1 Engine Coolant Temperature Gage Indicates Engine is Overheating 2 Engine Cranks but Fails to Start 20 0 eee eee 3 Engine Does Not Develop Full Power 0010 00 5 4 Engine Does Not Idle 5 Engine Fails to Crank When Starter Button is 6 Engine Starts but Misfires or Runs Rough After Proper Warmup Period 0010 00 7 Excessive Engine Oil Consumption 8 Excessive Exhaust Smoke At Normal Engine Operating Speed 9 Low or No Engine Oil STEERING 1 Steering Shimmy or 2 Vehicle Steering Slow or Intermittent to Respond 0009 00 1 9 2320 302 10 TROUBLESHOOTING SYMPTOM INDEX CONTINUED 0009 00 Malfunction Symptom Troubleshooting Procedure TRANSMISSION 1 Slow or Erratic Transmission 2 Transmission Fluid Temperature Gage Indicates Fluid is Overheating During Normal Operation 0010 00 7 WHEELS AND TIRES 1 Tires Worn Unevenly or 1 0010 00 7 2 Vehi
2. 0003 00 0003 00 6 Collision Warning System 0003 00 0003 00 11 Cooling System 0003 00 0003 00 4 Drive Train Ep Eu 0003 00 0003 00 1 Electrical System 0003 00 0003 00 4 Exhaust System 0003 00 0003 00 3 Fuel System ooooccoccoco nen 0003 00 0003 00 1 Introduction en teg 0003 00 0003 00 1 Rear Suspension 0003 00 0003 00 9 Steering System 0003 00 0003 00 8 Traction Control System 0003 00 0003 00 8 Traction Control System Theory of Operation 0003 00 0003 00 8 Transmission Operation Under Usual Conditions 0005 00 0005 00 4 Troubleshooting In StEUctioris cmd ek CR ene e t dre 0008 00 0008 00 1 Procedures cose ey exu EY du 0010 00 0010 00 1 Symptom 0009 00 0009 00 1 Truck Cleaning and Refueling Instructions 0013 00 0013 00 1 Warranty Information 0001 00 0001 00 2 Wheel and Tire Maintenance Instructions 0014 00 0014 00 1 Index 5 Index 6 Blank By Order of the Secretary of the Army ERIC K SHINSEKI General United States Army Chief of Staff Official JOEL B HUDSON Administrative Assistant to the Secretary of the Arny DISTRIBUTION To be distributed in accordance with the initial
3. 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 OPERATE LIGHTS CONTINUED 4 Operate Interior Lights NOTE Interior lights DO NOT come on when cab door is opened a Place ignition key in ON position b Slide thumb switch 7 inboard to turn on domelight 8 only c Slidethumb switch 7 outboard to turn on domelight 8 and map light 6 d Place ignition key in OFF position 342 028 0005 00 21 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 RIFLE MOUNTING KIT The rifle mounting kit 1 is located next to shift tower 342 036 OPERATE HEATER AND DEFROSTER NOTE Heater and defroster obtain heat from engine as it runs If engine is not run ning heat will not be available for these functions Start engine and bring truck to normal operating temperature Slide mode control lever 2 to desired position 1 2 Slide temperature control lever 3 to desired temperature range 4 Rotate fan switch 1 to adjust fan speed from slower to faster as desired 5 Press FRESH RECIRC air button 4 to desired setting 4 342 1192 0005 00 22 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 PREPARATION FOR TRANSPORT WARNING e Lifting cables chains hooks and slings used for lifting truck must be in good condition and of suitable capacity Failure to follow this warning may result in injury or
4. 9 2320 302 10 OPERATOR S MANUAL FOR TRUCK TRACTOR LINE HAUL 52 000 GVWR 6 X 4 M915A3 NSN 2320 01 432 4847 Approved for public release distribution is unlimited HEADQUARTERS DEPARTMENT OF THE ARMY May 2001 9 2320 302 10 LIST OF EFFECTIVE PAGES WORK PACKAGES NOTE A vertical line in the outer margins of the page indicates the portion of text affected by the change Changes to illustrations are indicated by miniature pointing hands Change to wiring diagrams is indicated by shaded areas Dates of issue for original and change pages work packages are Original 28 May 001 Change Not Applicable TOTAL NUMBER OF PAGES FOR FRONT AND REAR MATTER IS 36 AND TOTAL NUMBER OF WORK PACKAGES IS 20 CONSISTING OF THE FOLLOWING Page WP Change No No Cover Back Blank A B Blank atoj i to iii iv Blank WP 0001 00 to 0020 00 Index 1 to Index 6 Authentication Page Back Blank Sample DA Form 2028 2 Blank DA Form 2028 2 Metric Conversion Chart Back Cover Zero in this column indicates an original page or work package A B Blank 9 2320 302 10 WARNING SUMMARY This warning summary contains general safety warnings and hazardous materials warn ings that must be understood and applied during operation and maintenance of this equipment Failure to observe these precautions could result in serious injury or death to personnel Also included are explanation
5. 0012 00 If engine oil is low fill to correct level MALFUNCTION 9 Low or No Engine Oil Pressure Check engine oil level STEERING 1 Hard Steering Shimmy Wandering NOTE Check tire pressure when tires are cold 2 Vehicle Intermittent to Respond Steering Slow 1 Check that tires are properly inflated Check for loose lug nuts Check for worn loose or damaged parts on front axle Or suspension Check steering linkage wheels and vehicle frame for worn loose or damaged parts Check power steering fluid level Check for proper operation of power steering 0010 00 6 Inflate tires to proper pressure Tighten loose lug nuts and notify Unit Maintenance to apply proper torque If worn loose or damaged parts are found notify Unit Maintenance If power steering fluid is low fill to correct level WP 0016 00 With vehicle at stop turn steering wheel in either direction until steer limit is reached Hold steering wheel in position for five seconds Turn steering wheel in other direction until steering limit is reached Repeat cycling a number of times 9 2320 302 10 Table 1 Troubleshooting Procedures Continued CORRECTIVE ACTION TEST OR INSPECTION 2 Vehicle Wanders or Pulls to One 1 TRANSMISSION Slow or Erratic Transmission Check transmission fluid Engagement level Transmission Fluid Temperature 1 Check transmiss
6. 12 VOLT Tog BATTERY T 12 VOLT BATTERY 12 VOLT BATTERY AA 324 201 0003 00 5 9 2320 302 10 THEORY OF OPERATION CONTINUED 0003 00 AIR SYSTEM The air system consists of the air compressor air dryer air reservoirs and various air lines Also included in the air system are air pressure gages located on the instrument panel for mon itoring air pressure for safe operation of all air operated components of the vehicle AIR GAGES PRIMARY SECONDARY HOLDING TANKS 342 008 COMPRESSOR BRAKE SYSTEM 1 The dual air brake system consists of two independent air brake systems that use a single set of brake controls Each system has its own reservoirs plumbing and brake chambers The primary system operates the service brakes on the rear axle and the secondary system operates the service brakes on the front axle On tractor trailer configurations service brake signals from both systems are sent to the trailer 2 Loss of air pressure in the primary system causes the rear service brakes to become inop erative Front brakes will continue to be operated by secondary system air pressure In addition trailer brakes will be operated by the secondary system Loss of secondary sys tem air pressure causes the front axle brakes to become inoperative Rear service brakes and trailer brakes will be operated by the primary system 0003 00 6 9 2320 3
7. TM 9 2330 359 14 amp P Operator s Unit Direct Support and General Support Maintenance Manual Including Repair Parts and Special Tools List for Semitrailer Tactical Dual Purpose Breakbulk Container Transporter 22 Ton M871 M87IAT eet pe RR tee ee TM 9 2330 359 14 amp P Operator s Unit Direct Support and General Support Maintenance Manual Including Repair Parts and Special Tools List for Semitrailer Tank Fuel 7500 Gallon MIO062 nas rA MEE erbe d Ede dt d TM 9 2330 384 14 amp P Principles of Automotive 1 TM 9 8000 Procedures for Destruction of Tank automotive Equipment to Prevent Enemy Use cuve ROREM Ea TM 750 244 6 TECHNICAL BULLETINS CARC Spot Painting ee Hu RU AR 43 0242 Rust Proofing Procedures for Truck TB 43 0213 Warranty Bulletin for M915A3 Tractor TB 9 2320 302 15 OTHER PUBLICATIONS Abbreviations for Use on Drawings and in Specifications Standards and Technical Documents MIL STD 12D Army Medical Department Expendable Durable CTA 8 100 Expendable Durable Items Except Medical Class V Repair Parts and Heraldic CTA 50 970 Prevention of Motor Vehicle AR 385 55 0017 00 2 9 2320 302 10
8. WARNING CARBON MONOXIDE EXHAUST GASES CAN KILL Carbon monoxide is a colorless odorless deadly poison which when breathed deprives the body of oxygen and causes suffocation Exposure to air containing car bon monoxide produces symptoms of headache dizziness loss of muscular control apparent drowsiness and coma Permanent brain damage or death can result from severe exposure Carbon monoxide occurs in exhaust fumes of internal combustion engines Carbon monoxide can become dangerously concentrated under conditions of inadequate ventilation The following precautions must be observed to ensure safety of person nel when engine of truck is operated DO NOT operate truck engine in enclosed areas DO NOT idle truck engine without adequate ventilation DO NOT drive truck with inspection plates or cover plates removed BE ALERT for exhaust poisoning symptoms They are Headache Dizziness Sleepiness Loss of muscular control If you see another person with exhaust poisoning symptoms Remove person from area Expose to fresh air Keep person warm Do not permit physical exercise Administer cardiopulmonary resuscitation CPR if necessary Notify a medic BE AWARE The field protective mask for nuclear biological chemical NBC protection will not protect you from carbon monoxide poisoning The Best Defense Against Carbon Monoxide Poisoning Is Good Ventilation 9 2320 302 10 0 2 WARNING BATTERIES L To av
9. 5 Indicator and Warning Lamps 38 39 40 41 38 Q FASTEN SEAT BELT Turn Signal Indicators Left right green light flashes whenever outside turn signal lights are flashing Both lights flash when four way flashers are on Engine Oil Warning Red light comes on and warning buzzer sounds when Light engine oil pressure is below 5 psi 34 kPa When operating in blackout mode only warning buzzer will sound Check Engine CHK Yellow light comes on for approximately five seconds ENG Light when ignition switch is turned on Light stays on if there is an engine malfunction Check Transmission Red light comes on and a warning buzzer sounds CHK TRANS when transmission temperature reaches 325 F Warning Light 163 C When operating in blackout mode only warning buzzer will sound Water Level Light Red light comes on and a warning buzzer sounds when engine coolant system level requires fluid When operating in blackout mode only warning buzzer will sound 0004 00 14 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 INSTRUMENT PANEL CONTINUED 43 44 quem CEPR Q FASTEN SEAT BELT NEM Engine Temperature Red light comes on and a warning buzzer sounds Warning Light when engine coolant temperature is above 225 F 106 C When operating in blackout mode only warning buzzer will sound SHUT DOWN Light Red lig
10. INTERVAL cem E IOENTIFICATIOM DAILY to PwaveraG RSVR DIPSTICK DAILY 2 FUEL FILTER PRIMARY oY 3 on LEVEL DAILY amp TRANSHIEBION OIPRTICH 26 FHONT WHEEL BEARING DAILY 29 RADIATOR COOLANT 16 CRAMKCARE OD G CCA GY Me Ee 9 s 1RG DEAR HAFT BUSHING nemen 5 PIE TH WHEEL 3 5 00 3i FIRTH WHEEL SLIDE amp PLUNDER Cl o mem n C piss Bean een HK 5 000 8 10 STRO SHAFT U JOINT k SPLINE Dr pn 5 0058 11 REAR AXLE SPRING pee OS 5 1 FORWARD REAR AXLE DIFF ia 5 00078 REAR REAR AXLE DIFF EA 14 CAMMABTER BLACK ADRAITERS 5 00078 FRONT AKLE SPRING 10 000 10 000 10 000 8 FUEL FILTER PRIMARY 10 FUEL FILTER SECONDARY 9 FRONT 20 000 17 DM FILTER FULL FLOW 20 000 a 28 DIL FILTER BYPASS TRANSMISSION A 20 0007 21 THANSHISSION FILIER 20 000 A 1 PWR SIRG RESERVOIR RODOWA y PWR STRG FILTER 30 000 8 22 TIE 20 000 5 24 CAMSHAFT ROLLER JOURNALS AND BUSHINGS 20 000 8 25 ORIVELINE UMIVEREA JOINT BLIP YOKER AND SPLINE 38 000 A 26 FRONT BEARIMOR 7 00074 ar CRMARD REAR AXLE OIL FILTER 75 000 a 12 FORWARD REAR AXLE DIFF 7 000 A 13 REAR REAR AXLE OIPF 39 000 A 33 PULLEY FAN DRIVE 70 0007A B
11. Provide a hand hold for personnel climbing on truck Sloped surface serves as an approach to fifth wheel and facilitates coupling of semitrailer Coupling device for semitrailers with kingpins Illuminate area in back of cab There is one light on each side of cab Strobe light alerts other vehicles of presence of truck Contains 12 volt commercial 24 volt military and trailer ABS receptacles Mount for radio antenna Deadens noise of engine exhaust Locks hood closed Located on both sides of hood 0002 00 4 0002 00 9 2320 302 10 EQUIPMENT DESCRIPTION AND DATA CONTINUED 0002 00 LOCATION AND DESCRIPTION OF MAJOR COMPONENTS CONTINUED CWS Side Sensor Fuel Tank Storage Boxes Mud Flaps Blackout Lights Trailer Gladhands Pintle Hook Taillights Side looking collision warning system sensor Holds fuel Steps mounted to tank provide access to cab Provide stowage area for BII and other items Prevent water and debris from spraying up on passers by or towed semitrailer Used during blackout conditions Provide air supply for trailer brakes Coupling device for trailers with lunettes Contain composite tail stop backup and turn signal lights 0002 00 5 9 2320 302 10 EQUIPMENT DESCRIPTION AND DATA CONTINUED 0002 00 EQUIPMENT DATA Dimensions Length Overall vase e ERR ERE PE 276 0 in 701 cm Height 118 in 300 cm
12. Temperature Gage range in green band is 100 300 F 8 149 C If needle goes into yellow band or red band stop and investigate cause Fuel Gage Indicates amount of fuel in fuel tank when ignition Switch is turned ON 0004 00 5 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 INSTRUMENT PANEL CONTINUED 2 Upper Right Dash Panel Air Vent Engine Jake Brake Selection Switches Fifth Wheel Slide Inter axle Lockout Control Valve Lever Vents air into cab from heater ventilator defroster and air conditioner Louvered openings are adjustable Select number of engine cylinders desired for braking action two four or six cylinders Turn on left switch for two cylinders right switch for four cylinders and both switches for all six cylinders Permits repositioning of sliding fifth wheel from inside cab LOCK position deactivates control valve and locks fifth wheel to baseplate UNLOCK position activates control valve to allow changes to total length of tractor trailer and changes to axle loads Locks and unlocks driveline based on changing driving conditions a LOCK In poor traction conditions stop vehicle and place lever in LOCK position to lock up driveline b UNLOCK When conditions are back to normal move lever to UNLOCK while vehicle is moving 0004 00 6 9 2320 30
13. 3 Start engine NOTE If outside air is dusty or smoky mode control lever should be set to MAX A C and windows and vent closed to prevent drawing dust or smoke into cab 4 Move mode control lever 2 to A C With control at A C fresh air is drawn into cab With control at MAX air inside cab is recirculated 5 Move temperature control lever 3 to COOL 342 1192 6 Turn fan switch 1 to 4 highest speed 7 As soon as cool air is flowing from dashboard outlets close windows 0005 00 17 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 OPERATE AIR CONDITIONER CONTINUED 8 Adjust temperature control lever 3 and fan switch 1 as required OPERATE PORTABLE FIRE EXTINGUISHER WARNING Discharging large quantities of dry chemical fire extinguisher in the cab may result in temporary breathing difficulty during and immediately after the dis charge event If at all possible discharge fire extinguisher from outside the cab Ventilate cab thoroughly prior to reentry NOTE This is a type B and C fire extinguisher Use on oil and electrical fires only 1 Remove fire extinguisher 3 from bracket 5 located between passenger seat and shift tower 2 Hold fire extinguisher 3 upright Point nozzle 4 toward base of fire and pull safety pin 1 3 Squeeze lever 2 discharging chemical at base of fire Use a side to side motion to spread chemical After using fire ext
14. COMPONENTS OF END ITEM AND BASIC ISSUE ITEMS BII LISTS 0018 00 SCOPE This work package lists COEI and BII for the M915A3 Tractor Truck to help you inventory items for safe and efficient operation of the equipment GENERAL The COEI and BII information is divided into the following lists 1 Components of End Item COED This list is for information purposes only and is not authority to requisition replacements These items are part of the M915A3 Tractor Truck As part of the end item these items must be with the end item whenever it is issued or transferred between property accounts Items of COEI are removed and separately pack aged for transportation or shipment only when necessary Illustrations are furnished to help you find and identify the items Basic Issue Items These essential items are required to place the M915A3 Tractor Truck in operation operate it and to do emergency repairs Although shipped separately pack aged BII must be with the M915A3 Tractor Truck during operation and when it is trans ferred between property accounts Listing these items is your authority to request requisition them for replacement based on authorization of the end item by the TOE MTOE Illustrations are furnished to help you identify the items EXPLANATION OF COLUMNS IN THE COEI AND BII LISTS Column 1 Illus Number Gives you the number of the item illustrated Column 2 National Stock Number NSN Indicates the s
15. NOTE If HI LO switch is set to HI position heater will automatically switch to low heat when temperature of coolant at heater inlet reaches 176 F 80 LO position is suitable when heater operates over an extended period h Place HI LO switch 4 to desired setting i To turn auxiliary heater off place AUX HTR switch 2 to OFF position Heater burner will stop and AUX HTR light will go out within a few minutes Blower will continue to run for approximately 90 seconds MAX A C VENTWHEAT HEAT DEF DEF 4 342 1192 0006 00 7 9 2320 302 10 OPERATION UNDER UNUSUAL CONDITIONS CONTINUED 0006 00 OPERATE IN EXTREME COLD CONTINUED 3 Operate Arctic Heater To Heat Cab if equipped NOTE e Arctic heater is used to provide engine preheating for engine startup in extreme cold It is also used to provide personnel heat When heater is required to preheat engine coolant and engine block before startup it should be turned on 1 2 1 hour before engine is started e Auxiliary heater AUX indicator light illuminates only when burner is lit Indicator light turns on and off automatically During auxiliary heater operation watch battery indicator If necessary start engine to charge batteries a Place master battery switch to ON b Turn all electrical equipment in cab OFF i e heated mirrors defroster blower per sonnel heater blower etc c Push auxiliary heater coolant flow con
16. Width 100 in 254 cm Wheelbas oc d xb e 162 in 411 cm Ground Clearance 9in 23 cm Angle of 27 Weights RR 19 080 lb 8662 kg OVWR nenn sans arena Bora ne 52 000 Ib 23 608 kg BEWR A EEE Er Re 105 000 Ib 46 670 kg Front Axle Loaded 12 000 Ib 5448 kg Rear Axle 40 000 Ib 18 160 kg Capacities Engine Oil Refill 41 qt 38 81 1 Cooling System eei ieo esee 65 qt 61 5 1 Fuel T ank iiia ab Re ers 100 gal 378 5 1 Power Steering 2 qt 1 91 Transmission 2 teens 51 qt 48 1 Rear Axle 13 14 5 qt 12 3 13 7 1 Engine Manufacturet ved eee else Detroit Diesel TP des 4 stroke in line turbocharged diesel Model EA REGAL AER lan DDECIV AAA RO PRI ent 6 Displacement 755 CID 12 71 Torque 1200 1400 Ib ft 1898 N m Maximum Horsepower 2100 430 320 6 kW Maximum Governed Speed 2100 rpm Oil Filter opo A ERR 2 full flow replaceable elements Oil Filter Quantity lees 2 0002 00 6 9 2320 302 10 EQUIPMENT DESCRIPTION AND DAT
17. loose drive belts are suspected belt fiber has more than one crack 1 8 in 3 2 mm in depth or has frays more than 2 in 5 1 cm long b Check for damaged pulleys b Pulley is damaged 0012 00 24 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Item To Item Check Not Fully Mission No Interval Service Procedure Capable If 46 WARNING Ether is highly flammable and explosive DO NOT perform ether quick start system checks or inspections while smoking or near fire flame or sparks Failure to follow this warning may cause a fire and explosion causing serious injury or death to personnel Check for loose connections and Damage or leakage is damage to lines fittings and can evident ister Be alert for the odor of leak ing ether Wind Check level of fluid in reservoir shield located in engine compartment Washer below driver windshield on left Reservoir firewall Add windshield cleaning compound Item 3j WP 0020 00 as required Front WARNING Wheel and Operating truck with an underinflated or defective Tire tire may lead to tire failure and loss of steering control Injury to personnel or damage to equip ment may result a Check pressure in tires and adjust as required Empty 85 psi 586 kPa Loaded 105 psi 724 kPa b Ensure all wheel stud lug nuts b Two or more wheel are tight using wheel stud lug studs
18. turn cross pin is now engaged f Install washer 5 and nut 4 on release stud 2 g Install cap 3 Tighten nut 4 until approximately 3 in of release stud 2 shows above nut Spring brake is fully released 2 Uncage Brakes a Block wheels b Remove cap 3 c Remove nut 4 and washer 5 from release stud 2 d Turn release stud 2 to left turn and remove release stud from spring chamber 6 e Insert release stud 2 into stowage pocket 1 and install washer 5 and nut 4 on release stud Install 3 0006 00 4 9 2320 302 10 OPERATION UNDER UNUSUAL CONDITIONS CONTINUED 0006 00 CAGE AND UNCAGE BRAKES CONTINUED I 3 4 842 040 OPERATE IN EXTREME COLD 1 General a Extreme cold causes many problems 1 Lubricants thicken or congeal 2 Batteries may freeze or lose their electrical efficiency 3 Fuel may not readily atomize for combustion 4 Various materials become hard brittle and easily damaged 5 Cooling system requires adequate protection from extreme cold 6 Fuels lubricants and antifreeze compounds require special storage han dling and use b Referto FM 9 207 for additional information vehicles assigned to arctic regions are equipped with an auxiliary arctic heater kit to protect vehicle systems from freeze damage enables easier starting by provid ing engine block preheating and boosts cab heat output Refe
19. 1 WP 0013 00 Truck Cleaning and Refueling 0013 00 1 WP 0014 001 Wheel and Tire Maintenance Instructions 0014 00 1 WP 0015 00 Battery Box Cover 1 0015 00 1 WP 0016 00 Lubrication 0016 00 1 CHAPTER 5 SUPPORTING INFORMATION WP 0017 00 References _ 0017 00 1 WP 0018 00 Components of End Item COELI and Basic Issue Items BID Lists 0018 00 1 WP 0019 00 Additional Authorization List AAL 0019 00 1 Expendable and Durable Items 15 0020 00 1 AA 9 2320 302 10 HOW TO USE THIS MANUAL This manual is designed to help you operate and maintain the M915A3 Tractor Truck FEATURES OF THIS MANUAL A Table of Contents is provided at the beginning of this manual WARNINGs CAUTIONS NOTEs subject headings and other important information are highlighted in BOLD print as a visual aid WARNING A WARNING indicates a hazard which can result in death or serious injury CAUTION A CAUTION is a reminder of safety practices or directs attention to usage practices that may result in damage to equipment NOTE A NOTE is a statement containing information that will make the procedures easier to perform Statements and words of particular importance are printed in CAPITAL LET
20. 7X8X9 in 19207 CPR103023 2 5340 01 345 4676 BRACKET MOUNTING Decontamination Kit 64678 681 899 02 KO 2540 01 453 0497 CHAINS TIRE 80535 2245 5340 00 545 2337 CLEVIS ROD END Part of Tow Bar 2540 00 378 2012 19207 8724449 4230 01 133 4124 DECONTAMINATION APP 81361 E5 51 527 5120 00 288 6574 HANDLE MATTOCK PICK 35 5 36 5 in Long 19207 11677021 5895 01 361 7606 INSTALLATION KIT SINCGARS 80063 A3104086 TBD KIT AIR DEFLECTOR 64678 681 790 02 KO TBD KIT ARCTIC HEATER 62380 923 015 TBD KIT FENDER REAR TBD TBD 6545 00 922 1200 KIT FIRST AID 19207 11677011 0019 00 2 0019 00 4 5 U M Recn 9 2320 302 10 ADDITIONAL AUTHORIZATION LIST AAL CONTINUED 0019 00 Table 1 Additional Authorization List Continued 1 2 3 National Description Usable Stock Number CAGEC and Part Number on Code 1005 01 345 8880 KIT RIFLE MOUNTING 64678 681 816 00 K2 5120 00 243 2395 MATTOCK 5 Lb Without Handle 19207 11677022 5340 00 158 3805 PADLOCK 96906 MS35647 10 5315 00 539 9174 PIN Part of Tow Bar 2540 00 378 2012 19207 10929861 5315 00 350 4326 PIN LOCKING Part of Tow Bar 2540 00 378 2012 19207 5213744 5120 00 293 3336 SHOVEL HAND Rd Pt D Hdl Short Size 2 19207 11655784 2540 01 267 2912 TOW BAR Medium Duty 19207 12322663 0019 00 3 0019 00 4 Blank 9 2320 302 10 EXPENDABLE AND
21. BEARINGS Daily check that level of gear lubricating oil is visible in sight glass If oil is not visible remove rubber plug and add GO until level is even with plug opening Install rubber plug POWER STEERING RESERVOIR Daily with engine running and fluid at operat ing temperature remove dipstick from reservoir and check level of lubricating oil on dipstick As required add OE HDO to bring level above the ADD mark on dipstick RADIATOR WARNING DO NOT remove radiator cap unless engine is cold Remove cap in two steps First place a thick cloth over cap and slowly turn cap left to first stop Pause and allow pressure to escape Turn cap further left until it can be removed This is a pressurized cooling system and escaping steam hot water or coolant will cause serious burns Daily with engine cool remove radiator cap Check level of coolant in radiator Cool ant must be within 2 1 2 in 6 4 cm below filler neck As required add coolant to cor rect level Install radiator cap ENGINE CRANKCASE Daily check level of lubricating oil Wait 10 minutes after shutting down engine to allow oil to drain back into crankcase To ensure an accurate reading vehicle must be parked on level ground Safe operating level is between ADD and FULL marks on dipstick As required add OE HDO through filler opening DO NOT overfill TRANSMISSION CAUTION Transmission must not be operated for extended periods of time until a Hot Check
22. DURABLE ITEMS LIST 0020 00 SCOPE This work package lists expendable and durable items that you will need to operate and main tain the M915A3 Tractor Truck This list is for information only and is not authority to requisi tion the listed items These items are authorized to you by CTA 50 970 Expendable Durable Items Except Medical Class V Repair Parts and Heraldic Items or CTA 8 100 Army Medi cal Department Expendable Durable Items EXPLANATION OF COLUMNS IN THE EXPENDABLE DURABLE ITEMS LIST 1 Column 1 Item Number This number is assigned to the entry in the list and is refer enced in the narrative instructions to identify the item e g detergent Item 4 WP 0020 00 2 Column 2 Level This column identifies the lowest level of maintenance that requires the listed item C Operator Crew 3 Column 3 National Stock Number NSN This is the NSN assigned to the item which you can use to requisition it 4 Column 4 Item Name Description Commercial and Government Entity Code CAGEC and Part Number P N This provides the other information you need to identify the item 5 Column 5 Unit of Measure U M This code shows the physical measurement or count of an item such as gallon dozen gross etc 0020 00 1 9 2320 302 10 EXPENDABLE AND DURABLE ITEMS LIST CONTINUED Table 1 Expendable and Durable Items List 3 National Stock Number 6850 00 181 7929 6850 00 181 7933 6
23. Grabhandles Utility Power Receptacle Air Horn Master Battery Switch Spare Wheel and Tire Battery Box and Steps Front Service Lights Bumper Extensions Blackout Lights Towing Eyes CWS Antenna Brush Guard Spotting Mirrors TM 9 2320 302 10 0002 00 LOCATION AND DESCRIPTION OF MAJOR COMPONENTS CONTINUED Indicate outline of truck Provide driver with a view of sides of truck and semitrailer if towing Provide a hand hold for personnel climbing on truck Supplies power for work lights Located on both sides of truck Provides an audible alert Connects batteries to vehicle electrical system Extra wheel and tire used in case of a flat tire Holds vehicle batteries and provides steps to access cab Include headlights and turn signals Provide adjustable attachment point for slings Used during blackout conditions Include marker and drive lights Provide attachment points for towing device Forward looking collision warning system antenna Protects front of hood and components under hood from damage Provide added visibility to sides and front of truck 0002 00 3 EQUIPMENT DESCRIPTION AND DATA CONTINUED 31 Grabhandles Ramp Fifth Wheel Utility Lights Strobe Warning Light Intervehicular Receptacles Installation Antenna Mount Exhaust Muffler Hood Latch TM 9 2320 302 10 LOCATION AND DESCRIPTION OF MAJOR COMPONENTS CONTINUED AMO HT s NN MN Fels RANK
24. Lubrication Chart is for the operator crew C Lubrication intervals on condition or hard time are based on normal operation Lubricate more during constant use and less dur ing inactive periods Use correct grade of lubricant for seasonal temperature expected For equipment under manufacturer s warranty hard time oil service intervals shall be followed Intervals shall be shortened if lubricants are known to be contaminated or if opera tion is under adverse conditions e g longer than usual operating hours extended idling peri ods extreme dust etc Clean area around lubrication points with detergent Item 4 WP 0020 00 or equivalent before lubricating equipment After lubrication wipe off excess lubricant to prevent accumu lation of foreign matter Dashed leader line indicates lubrication on both sides of vehicle 0016 00 2 9 2320 302 10 915 LUBRICANT INTERVAL INTERVAL LUBRICANT Primary Fuel Filter Drain Moisture See View A Wheel Bearings Check and Fill C See View B amp Note 1 Power Steering Reser voir Check amp Fill C See View C amp Note 2 0016 00 3 342 07 Radiator Check amp Fill C See Note 3 Engine Crank case Check amp Fill C See View D amp Note 4 Transmission Check amp Fill C See View E amp Note 5 Lubricant Component OE HDO MIL L 2104 Lubricating Oil ICE Tactical OEA
25. Maximum Load Capacity Each Up to 45 Angle Front Long Axis Fifth Wheel Manufacturer RC ER e ERR Re Pars ses eee WE ner ET Capacity ir rp ete en Eee Height Empty Pitch Kingpin Size esse sera Cab Manufacturer cuui ae Constructor Ran aa nen Air Deflector ts eR REPERTA E pe Accessories Utility Fights aoe ee ERR OPER EO RED AIt HOr exe e UPS eee ve REA Military Load Classification Vehicle w o Vehicle w Trailer 0002 00 9 0002 00 10 Blank 0002 00 Holland No 760 30 tons 27 2 metric tons 2 front 2 rear 60 000 lb 27 240 kg Holland 36 in 91 4 cm diameter 2 way oscillating low lube 30 000 Ib 13 620 kg 52 in 132 1 cm 15 10 2 in 5 1 cm Freightliner aluminum 2 passenger tilt forward hood adjustable 2 fixed top rear of cab 1 under cab 14 35 unloaded loaded 14 46 unloaded loaded 11 34 unloaded loaded 9 2320 302 10 THEORY OF OPERATION 0003 00 INTRODUCTION i The M915A3 Tractor Truck consists of the following functional systems drive train fuel system exhaust system cooling system electrical system air system brake system steering system traction control system suspension system air conditioning system and collision warning s
26. Operation 0003 00 0003 00 1 L List Abbreviations arer een nenn 0001 00 0001 00 2 Nomenclature 55 0001 00 0001 00 2 List of Abbreviations 0001 00 0001 00 2 Lists Additional Authorization 0019 00 0019 00 1 Basic Issue Items 0018 00 0018 00 1 Components of End Item 0018 00 0018 00 1 Expendable and Durable Items 0020 00 0020 00 1 Location and Description of Major Components 0002 00 0002 00 2 Lubrication 1 5 5 0016 00 0016 00 1 M Maintenance Forms Records and Reports 0001 00 0001 00 1 Index 2 9 2320 302 10 INDEX Continued Subject Work Package Page M Continued Major Components Location and Description of 0002 00 0002 00 2 N Nomenclature Cross Reference List 0001 00 0001 00 2 Operation Under Unusual Conditions Cage Brakes 0006 00 0006 00 3 Extreme Cold 0006 00 0006 00 5 Extreme Heat iis pa Rb peeled 0006 00 0006 00 8 Fordirigi iis de ier RAS pP usw 0006 00 0006 00 9 In Woods or On Rocky Terrain 0006 00 0006 00 11 Mud or Soft Surfaces 0006 00 0006 00 9 On Snow and Ice 0006 00 0006
27. Pound Can 35 Pound Pail 120 Pound Drum OIL Lubricating GO 75 81349 MIL PRF 2105 Quart Can 5 Gallon Can OIL Lubricating Gear Multipurpose GO 80 90 81349 MIL PRF 2105 Quart Can 5 Gallon Can 55 Gallon Drum 16 Gage OIL Lubricating GO 85 140 81349 MIL PRF 2105 Quart Can 5 Gallon Can 55 Gallon Drum 0020 00 3 9 2320 302 10 EXPENDABLE AND DURABLE ITEMS LIST CONTINUED 0020 00 Table 1 Expendable and Durable Item List Continued 3 National Stock Number 9150 00 402 4478 9150 00 402 2372 9150 00 491 7197 9150 00 189 6727 9150 00 186 6668 9150 00 191 2772 9150 01 152 4117 9150 01 152 4118 9150 01 152 4119 9150 00 186 6681 9150 00 188 9858 9150 00 189 6729 4 Item Name Description CAGEC Part Number OIL Lubricating Internal Combustion Engine Arctic OEA 81349 MIL L 46167 Quart Can 5 Gallon Drum 55 Gallon Drum OIL Lubricating Internal Combustion Engine OE HDO 10 81349 MIL L 2104 Quart Can 5 Gallon Can 55 Gallon Drum OIL Lubricating Engine OE HDO 15W 40 81349 MIL L 2104 1 Quart Can 5 Gallon Can 55 Gallon Drum OIL Lubricating Internal Combustion Engine OE HDO 30 81349 MIL L 2104 1 Quart Can 5 Gallon Can 55 Gallon Drum 0020 00 4 9 2320 302 10 EXPENDABLE AND DURABLE ITEMS LIST CONTINUED 0020 00 1 Item Number Table 1 Expendable and Durable Items List Continued 3 National St
28. TACH ORIVE 76 000 A 19 REAR WHEEL BEARINGS _ NOTE TO YALIOATE WARRANTY INITIAL BERVICE MUST BE PERFORMED AT 5 000 MIL B SERVICE INTERVALS SHOW ABOVE BEGIN THEREAFTER REFER TU INSIRUCTIONAL MANUAL FOR COMPLETE INFORMATION REQAROINO LUBRICATION OF VEHICLE el LUBRICATION KEY cux LUBRICATING OIL INTERNAL COMBUSTION TACTICAL SERVICE FF DAL RIOS a D DRAIN DREASE AUTOMOTIVE AND ARTILLERY MIL G 10924 L LUBRICATE GD LUBRICATING OIL GEAR MULTIPURPOSE MIL L 2105 CH amp ITEM APPEARS ON BOTH SIOCB DE TRUCK 1 INSPECT OE ON CONDITION A ADJUST GRE OPERATORS MANUAL FOR OLTAILS TIRE AND RIM DATA 9 SRI s 000 Seo MOH IAP RRS 28 6 X 5 95 342 045 0007 00 2 9 2320 302 10 STOWAGE AND DECAL DATA PLATE GUIDE CONTINUED DECALS AND PLATES CONTINUED ACTURED FREIGHTLINER 0009 PORTLAND OREGON NOTE HORIZONTALLY TRUCK CENTER OF GRAVITY ONG TRUCK SHIPPING DATA M9I5A3 OVER ALL LENGTH 276 00 IN SHIPPING TONNAGE 10 TONS OVER ALL HEIGHT 118 00 IN FRONT AXLE WEIGHT 10 310 LBS OVER ALL WIDTH 100 00 IN FRONT REAR AXLE WEIGHT 4 760 LBS SHIPPING VOLUME 1 847 0 CU FT BACK REAR AXLE WEIGHT 4 010 LBS SHIPPING WEIGHT 19 080 LBS P N 2
29. TIRE MAINTENANCE CONTINUED 3 Start engine Push in ON trailer air supply control valve Remove valve stem cap 4 and connect pneumatic hose 1 to valve stem 5 Add air until desired pressure is reached Remove pneumatic hose 1 from valve stem 5 and install valve stem cap 4 Pull out OFF trailer air supply control valve Shut down engine Disconnect pneumatic hose 1 from emergency gladhand 3 and return to BII storage box Install dummy coupling 2 on emergency gladhand 3 342 066 OPERATION OF SPARE WHEEL AND TIRE ASSEMBL Y CARRIER 1 Remove Spare Wheel and Tire Assembly from Carrier a Ensure pawl 2 engages gear shaft 1 and loosen two nuts 4 b Slide spare wheel and tire assembly 5 to allow nuts 4 to pass through keyway opening c Turn gear shaft 1 clockwise slightly and disengage pawl 2 Swing pawl out of way 0014 00 2 9 2320 302 10 WHEEL AND TIRE MAINTENANCE INSTRUCTIONS CONTINUED 0014 00 OPERATION OF SPARE WHEEL AND TIRE ASSEMBLY CARRIER CONTINUED WA WARNING Use caution when lifting or handling wheel and tire assembly It is heavy and could cause injury if improperly lifted or if it falls on you d Slowly rotate gear shaft 1 counterclockwise one notch e Support spare wheel and tire assembly 5 and remove wheel clamp plate 6 f Repeat steps c and d until spare wheel and tire assembly 5 is lowered to ground g Remove two nuts
30. and handle lug nuts are loose c Check wheel for cracks breaks c Wheel is cracked or bends broken or bent UNDER VEHICLE 52 Weekly Steering Check front axle steering compo Any steering compo Compo nents for cracks breaks loose nent is cracked bro nents connections or other damage ken or loose 0012 00 28 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Location Item To Item Check Not Fully Mission No Interval Service Procedure Capable If Weekly Axle NOTE Breathers Perform the following service at all axles except the front axle Without removing breather vent 61 check for a clogged vent Clean with detergent Item 4 Wa as required to remove dirt and grease 342 062 54 Weekly Brake NOTE Chambers Perform the following check at all axles Check brake chamber service Stroke alert indicator is pushrod for showing of stroke visible alert indicator 62 342 063 0012 00 29 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Item To Item Check Not Fully Mission No Interval Service Procedure Capable If Pintle Check pintle hook 63 for loose Hook ness damaged locking mecha nism and presence of cotter pin 342 064 Rear rear WARNING and For ward rear Wheels and Tires Operating truck with an underinflated or defective tire may lead t
31. around any fluid filler locations before checking or adding fluids e Clean spouts of fuel containers and areas around filler caps on fuel tanks before adding fuel Under extremely sandy or dusty conditions filter fuel when filling tanks f Cover window glass to protect against sand blasting g Notify Unit Maintenance to clean inspect and lubricate propeller shafts more fre quently OPERATE IN WOODS OR ON ROCKY TERRAIN 1 Ensure vehicle can clear any obstructions and try to avoid low hanging tree limbs which might cause damage 2 Ensure spare wheel and tire assembly is available OPERATE ON SNOW AND ICE 1 General a When driving 1 Accelerate slowly to avoid spinning tires 2 Drive at slower speeds 3 Give signals sooner 4 Apply brakes sooner to give early warning of intention to stop This also helps to avoid skidding 5 Maintain double the normal distance from the vehicle ahead 6 Keep windshields windows mirrors headlights stoplights body lights and collision warning system CWS antenna and side sensor clean and free of snow and ice Use defroster to help keep windshield and window glass free of snow and ice 7 Descend moderate grades in gear normally used for ascending same grade On steep or very slippery grades place inter axle lockout control valve lever in LOCK position and use at least one gear lower 0006 00 11 9 2320 302 10 OPERATION UNDER UNUSUAL CONDITIONS CONTINUED 000
32. fuel for mission e Check air cleaner restriction e Indicator window indicator shows 20 in 51 cm or more of water vacuum 13 Before Parking With service brake pedal Vehicle moves with Brake depressed transmission in D parking brake applied Drive and engine at idle pull parking brake valve out and release service brake pedal Vehi cle should not move 0012 00 7 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Item To Item Check Not Fully Mission No Interval Service Procedure Capable If 14 Service With transmission in Drive Vehicle moves with Brakes release parking brake and apply service brakes ap service brakes Vehicle should not plied move Before Trailer NOTE Brakes A Perform this check with trailer after tractor trailer are coupled a Listen for air leaks at interve a Any air leaks are hicular connecting hoses relay present valve and air reservoirs Apply trailer brakes only and b Brakes fail to hold attempt to move tractor trailer tractor trailer com combination bination from mov ing Instru a Monitor all gages and indicator Any red warning ment and warning lights Check that light stays on Panel CWS engine coolant and transmis Displays sion oil temperature gages reg ister within normal range green band Monitor indicator lights on driver s display unit and side sensor di
33. in question are described Headings at the top of each page show how each troubleshooting procedure is organized MALFUNCTION TEST OR INSPECTION in step number order and CORRECTIVE ACTION c Perform each step in the order listed until the malfunction is corrected DO NOT perform any maintenance task unless the troubleshooting procedure tells you to do so EXPLANATION OF COLUMNS The columns in WP 0010 00 Table 1 are defined as follows 1 MALFUNCTION visual or operational indication that something is wrong with the equipment TEST OR INSPECTION A procedure to isolate the problem in a system or component CORRECTIVE ACTION A procedure to correct the problem 0008 00 1 0008 00 2 Blank 9 2320 302 10 TROUBLESHOOTING SYMPTOM INDEX 0009 00 Malfunction Symptom Troubleshooting Procedure AIR SYSTEM AND BRAKES 1 Air Reservoir Pressure Low Warning Light and Buzzer are ON 4 0010 00 1 2 Air System Loses Pressure During Vehicle Operation or Low Air Pressure Warning Light and Buzzer Come On During Vehicle Operativa aii eds sated ES eis 0010 00 1 3 Trailer Brakes Will Not Apply When Pedal or Hand Control on Steering Column is Used 0010 00 2 4 Trailer Brakes Will Not 1 0010 00 2 DRIVELINE LOCKING SYSTEM Driveline Will Not Disengage When Inter axle Lockout Control Valve Lever is Moved to UNLOCK
34. it could bind during installation and damage stud threads or pilot pads Keep wheel square to hub during installation NOTE Before installing wheels ensure that drum is positioned on raised step of pilot pad One of hub pilot pads must be at top location To help keep drum in place it may be necessary to adjust brakes before installing wheels Place one pilot pad in top center position and position wheel assembly inner wheel assembly of rear axles on hub using care not to allow assembly to drop on or drag across stud threads NOTE Install wheel assembly so that balance weight s on wheels are 180 opposite of balance weight s on brake drum If this causes valve stems to be in the same wheel hole on rear wheel assemblies mount outer wheel so that outer wheel balance weight s are on same side as brake drum balance weight s On rear axles mount outer wheel against inner wheel in accordance with step c Ensure that pilot pad is still centered at top CAUTION On both sides of vehicle wheel lug nuts have right hand threads DO NOT attempt to install a similar size SAE nut on a stud Failure to follow this cau tion will result in damage to stud and nut Install and handtighten wheel lug nuts on top and bottom studs Install and handtighten eight wheel lug nuts on remaining studs Lower and remove jack 0014 00 6 9 2320 302 10 WHEEL AND TIRE MAINTENANCE INSTRUCTIONS CONTINUED 0014 00 WHEEL AND TIRE ASSEMBLY REPL
35. mandatory Fasten belt BEFORE driving Trying to fasten three point seat belt while driving creates a hazard ous condition Failure to follow this warning may result in death or injury to personnel 8 Adjust tether belt a Loosen tether belt 6 and turn buckle 5 at a right angle to webbing Pull buckle away from inner webbing b Tighten tether belt 6 to proper tension Ensure that movement of seat suspension is not restricted 9 Fasten seat belt a Slowly pull link 9 out of retractor 10 and across lap far enough to engage buckle 5 If retractor locks too soon allow belt to retract slightly and then pull slowly b Pushlink 9 into buckle 5 c Position shoulder strap 8 diagonally across chest 0005 00 2 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 INITIAL ADJUSTMENTS DAILY CHECKS AND SELF TESTS CONTINUED NOTE e If engaging Komfort Loc allow no more than 1 in 2 5 cm between chest and shoulder strap e Komfort Loc will automatically release if pressure is applied to shoul der strap d If desired engage Komfort Loc 7 by pulling on shoulder strap 8 and pressing Komfort Loc lever up e release seat belt press release button on buckle 5 If Komfort Loc 7 was engaged give shoulder strap 8 a quick downward tug to release START ENGINE NOTE Refer td WP 0004 00 for the location of instrument panel controls and indica tors 1 Ens
36. minutes to help prevent drying and crack ing of tubing seals and reduce refrigerant leaks in the system 0012 00 32 9 2320 302 10 TRUCK CLEANING AND REFUELING INSTRUCTIONS 0013 00 N WARNING Compressed air used for cleaning or drying purposes or for clearing restric tions should never exceed 30 psi 207 kPa Wear protective clothing gog gles shield gloves etc and use caution to avoid injury to personnel CAUTION DO NOT use high pressure water to clean inside of cab or engine compart ment Damage to electrical system may result 1 Exterior a Never wipe dirt off when vehicle is dry b Never wash vehicle in direct sunlight or if vehicle exterior is hot to touch c Wash vehicle often using cold or lukewarm water never use hot water or any strong detergent Do not use abrasives to remove mud and dirt from your vehicle d While cleaning vehicle look closely for evidence of rust or corrosion bare metal or other exterior damage If any problems are found notify Unit Maintenance to treat affected areas 2 Interior a Remove loose dust and dirt from cab interior components b Clean upholstery and seat belts using a mild solution of warm water and soap never use solvents or abrasives Wipe all washed areas dry 3 Refueling WARNING e DO NOT smoke or permit any open flame in area of truck while servic ing diesel fuel system Be sure hose nozzle is grounded against filler tube during refu
37. of seat belts while operating vehicle is mandatory Fasten belt BEFORE driving Trying to fasten three point belt while driving creates a hazardous condition Failure to follow this warning may result in death or injury to personnel Serious injury may result if head clearance is not adequate while sitting in seat Before driving or riding in vehicle ensure there is adequate clearance at maximum upward travel of seat Check Engine button is used for diagnostic purposes only DO NOT push Check Engine button during vehicle operation because engine will slow down to an idle which could cause hazardous operating conditions Return to operating mode by releasing accelerator pedal and allowing engine to return to idle speed Failure to fol low this warning may result in death or injury to personnel Ensure that steering wheel adjustment control lever is in locked neutral position before driving truck NEVER try to adjust tilt or height of steering wheel while driv ing Failure to follow this warning may cause death or injury to personnel Use caution when coupling to or uncoupling from semitrailer BE ALERT for per sonnel in area Ensure that hands arms and body are clear of potential pinch points Failure to follow this warning may result in injury to personnel Operating truck with an underinflated or defective tire may lead to tire failure and loss of steering control Injury to personnel or damage to equipment may result This vehicle ha
38. or subparagraph TYPED NAME GRADE OR TITLE TELEPHONE EXCHANGE AUTOVON SIGNATURE PLUS EXTENSION DA n RM 2028 REPLACES DA FORM 2028 1 DEC 68 WHICH WILL BE USED USAPPC V1 00 RECOMMENDED CHANGES TO PUBLICATIONS AND Use Part I reverse for Repair Parts and BLANK FORMS Special Tool Lists RPSTL and Supply Catalogs Supply Manuals SC SM For use of this form see AR 25 30 the proponent agency is ODISC4 TO Forward to proponent of publication or form Include ZIP Code FROM Activity and location Include ZIP Code AMSTA LC CI TECH PUBS TACOM RI 1 Rock Island Arsenal Rock Island IL 61299 7630 PART ALL PUBLICATIONS EXCEPT RPSTL AND SC SM AND BLANK FORMS PUBLICATION FORM NUMBER DATE Truck Tractor Line Haul Operator s TM 9 2320 302 10 28 May 2001 Manual ITEM PAGE PARA LINE FIGURE TABLE RECOMMENDED CHANGES AND REASON NO Reference to line numbers within the paragraph or subparagraph TYPED NAME GRADE OR TITLE TELEPHONE EXCHANGE AUTOVON SIGNATURE PLUS EXTENSION DA n RM 2028 REPLACES DA FORM 2028 1 DEC 68 WHICH WILL BE USED USAPPC V1 00 THE METRIC SYSTEM AND EQUIVALENTS Linear Measure 1 Centimeter 10 Millimeters 0 01 Meters 0 3937 Inches 1 Meter 100 Centimeters 1000 Millimeters 39 37 Inches 1 Kilometer 1000 Meters 0 621 Miles Weights 1 Gram 0 001 Kilograms 1000 Milligrams 0 035 Ounces 1 Kilogram 1000 Grams 2 2 Pounds 1 Metric Ton 100
39. posts are posts 58 damaged 0012 00 26 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Location Item To Item Check Not Fully Mission No Interval Service Procedure Capable If Weekly Batteries e Check for rust and corrosion f Check for cleanliness g Report any problems to Unit Maintenance 342 061 Weekly Spare WARNING Wheel and Tire Operating truck with an underinflated or defective tire may lead to tire failure and loss of steering control Injury to personnel or damage to equip ment may result a Check pressure in tire and adjust as required to achieve 105 psi 724 kPa b Check wheel for cracks breaks b Wheel is cracked or bends broken or bent 0012 00 27 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Item To Item Check Not Fully Mission No Interval Service Procedure Capable If 51 Weekly Forward WARNING Operating truck with an underinflated or defective Rear rear E tire may lead to tire failure and loss of steering Wheels and control Injury to personnel or damage to equip Tires ment may result a Check pressure in tires and adjust as required Empty 80 psi 552 kPa Loaded 100 psi 690 kPa b Ensure all wheel stud lug nuts b Two or more wheel are tight using wheel stud lug studs are missing or nut wrench
40. tem porary breathing difficulty during and immediately after the discharge event If at all possible discharge fire extinguisher from outside the cab Ventilate cab thoroughly prior to reentry WARNING HEARING PROTECTION Hearing protection is required when operating vehicle at more than 45 mph 72 kph with windows open for an extended period of time Hearing protection is also required when personnel are within 1 meter 3 1 ft of vehicle when operating at low engine idle 600 rpm and within 3 5 meters 11 ft of vehicle when operating at high idle 1600 rpm Failure to follow this warning may result in hearing damage 9 2320 302 10 S WARNING VW NBC EXPOSURE If NBC exposure is suspected all air cleaner media should be handled by personnel wearing protective equipment Consult your NBC Officer or NBC NCO for appropri ate handling or disposal procedures IF NBC EXPOSURE IS SUSPECTED ALL AIR FILTER MEDIA WILL BE HANDLED BY PER SONNEL WEARING FULL NBC PROTEC TIVE EQUIPMENT SEE OPERATOR MAINTENANCE MANUAL 7690 01 114 3702 To order this NBC decal use National Stock Number NSN 7690 01 114 3702 Part Number PN 12296626 Commercial and Government Entity Code CAGEC 19207 WARNING P A DO NOT remove radiator cap unless engine is cold Remove cap in two steps First place a thick cloth over cap and slowly turn cap left to first stop Pause and allow pres sure to escape Turn cap further left u
41. truck for obvious dam b Damage that would age that would impair opera impair operation is tion evident c Visually check tires for defects Tire is missing underinflation or loose or miss deflated unservice ing wheel studs or lug nuts able or two or more wheel studs or lug nuts are missing 0012 00 1 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Item To Item Check Not Fully Mission No Interval Service Procedure Capable If 2 Before Cab Exte Check for damage to lights 10 Damage that would rior spotting mirrors 1 side mirror interfere with visibility 4 windshield 2 windshield and impair operation is wipers and blades 3 cab door evident 9 grabhandle 5 battery box 8 and steps master battery switch 7 and collision warning system CWS antenna 11 Before Check for presence and condition Spare wheel and tire is of spare wheel and tire 6 missing or damaged Before Overall a Check under truck for evidence a Class III oil coolant View of fluid leakage such as oil or fuel leaks are evi coolant or fuel dent NOTE If leakage is detected further investigation is required to deter mine location and cause of leak 0012 00 2 Item TM 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Location Item To Check Not Fully Mission No Interval Serv
42. will cause serious burns 1 Check engine coolant level in radiator Check system for If leaks are found notify leaks Unit Maintenance Check if radiator Remove anything that cooling fins are free of blocks or impedes mud snow ice cooling fins debris Check cooling fan If belts are loose notify drive belts for Unit Maintenance looseness Check engine oil level If engine oil is low fill to correct level WP_0016 Check transmission If transmission fluid level fluid level is low fill to correct level WP 0016 00 2 Engine Cranks but Fails to Start WARNING Fuel tank cap may become hot during vehicle operation Use hand protec tion when removing fuel cap 0010 00 4 9 2320 302 10 Table 1 Troubleshooting Procedures Continued TEST OR CORRECTIVE MALFUNCTION INSPECTION ACTION 2 Engine Cranks but Fails to Start 1 Continued Check If Engine Does Not Develop Full Power Engine Does Not Idle Properly 1 If Engine Fails to Crank When Starter Button is Pressed Check position ignition switch Check transmission selector pushbuttons Check fuel gage with If empty add fuel Check restriction indicator Check position ignition switch in ON position air cleaner restriction indicator operating in temperature below 32 F 0 C check that cold weather starting procedure was used air cleaner Check air
43. 0 00 889 3494 BINDER LOOSELEAF 19207 11677003 6150 00 772 8814 CABLE ASSY 24 Volt 12 Ft in BII storage box 19207 7728814 6150 01 022 6004 CABLE POWER NATO in BII storage box 19207 11682336 1 0018 00 3 9 2320 302 10 COMPONENTS OF END ITEM AND BASIC ISSUE ITEMS BII LISTS CONTINUED 0018 00 ae 9 342 120 Table 2 Basic Issue Items List Continued 1 2 3 4 Illus National Description Usable on Number Stock Number CAGEC and Part Number CABLE ASSY POWER 12 Volt 12 Ft in BII storage box 64678 06 26246 144 2540 00 678 3469 CHOCK WHEEL in BII storage box 58536 A A 52475 1 4210 01 338 6064 EXTINGUISHER FIRE on cab floor 54905 447 4910 01 003 9599 GAGE TIRE PRESSURE in cab glove box 19207 7974576 1 5120 00 902 0092 HAMMER HAND in BII storage box 58536 A A 1292 0018 00 4 9 2320 302 10 COMPONENTS OF END ITEM AND BASIC ISSUE ITEMS BII LISTS CONTINUED 0018 00 13 342 074 Table 2 Basic Issue Items List Continued 1 2 3 4 Illus National Description Usable on Number Stock Number CAGEC and Part Number Code HANDLE WRENCH in BII storage box 34623 44201 HOSE PNEUMATIC Tire Inflation with Gauge 40 Ft in BII storage box 19207 11677140 7 JACK HYDRAULIC 12 Ton w Handle in BII storage box 08844 JH 12 0018 00 5 9 2320 302 10 COMPONENT
44. 0 Kilograms 1 Megagram 1 1 Short Tons Liquid Measure 1 Milliliter 0 001 Liters 0 0338 Fluid Ounces 1 Liter 1000 Milliliters 33 82 Fluid Ounces Square Measure 1 Sq Centimeter 100 Sq Millimeters 0 155 Sq Inches 1 Sq Meter 10 000 Sq Centimeters 10 76 Sq Feet 1 Sq Kilometer 1 000 000 Sq Meters 0 0386 Sq Miles Cubic Measure 1 Cu Centimeter 1 000 Cu Millimeters 0 06 Cu Inches 1 Cu Meter 1 000 000 Cu Centimeters 35 31 Cu Feet Temperature 5 9 F 32 212 Fahrenheit is equivalent to 100 Celsius 90 Fahrenheit is equivalent to 32 2 Celsius 32 Fahrenheit is equivalent to 0 Celsius 9 5 C 32 F APPROXIMATE CONVERSION FACTORS Sa inches Centimeters laces Sa Hectometers olo Ej a a RIS To Change O Multiply By eet s ts o 0 473 0 946 mn an Q PIN 078098 000
45. 00 11 Sandy or Dusty 5 0006 00 0006 00 10 Slave Start Truck 0006 00 0006 00 1 TOW TUCK osi RR RR daa dee 0006 00 0006 00 2 Operation Under Usual Conditions Air Conditioner 0005 00 0005 00 17 Driving air en ee a eh 0005 00 0005 00 9 Driving TipS cox ea en 0005 00 0005 00 6 Heater and Defroster 0005 00 0005 00 22 Initial Adjustments Daily Checks and Self TESIS rad 0005 00 0005 00 1 LAS ELE D c 0005 00 0005 00 19 Mud Flaps Stowage 0005 00 0005 00 16 Operation Transmission 0005 00 0005 00 4 Pintle Towing 0005 00 0005 00 15 Portable Fire Extinguisher 0005 00 0005 00 18 Preparation for Transport 0005 00 0005 00 23 Rifle Mounting Kit 0005 00 0005 00 22 Shut Down Engine 0005 00 0005 00 10 Sliding Fifth Wheel 0005 00 0005 00 11 Start Engine ks eee 0005 00 0005 00 3 Tiltable Hood erari ee 0005 00 0005 00 24 Index 3 9 2320 302 10 INDEX Continued Subject O Continued Operation Under Usual Conditions Continued Uncouple from Semitrailer Operator s Controls and Indicators Description andillse 455 iin eI Beate aes Ozone Deple
46. 02 10 THEORY OF OPERATION CONTINUED 0003 00 BRAKE SYSTEM CONTINUED 3 The warning light and buzzer inside the cab are activated if air pressure drops below 64 psi 441 kPa in either brake system If this happens check air pressure gages to deter mine which system has low air pressure Although vehicle speed can be reduced using the foot brake control pedal either the front or rear service brakes will not operate result ing in a longer stopping distance Bring vehicle to a safe stop and have the air system repaired before continuing If the primary brake system becomes inoperative the spring parking brakes automatically apply when air pressure drops to 35 45 psi 241 310 kPa The vehicle has a four channel anti lock brake system ABS and cam operated service brakes with non asbestos brakeshoes The M915A3 has automatically adjusting slack adjusters On all axles brake chambers have a stroke alert indicator which allows the operator to monitor brakeshoe wear AIR CONTROLS TRAILER TRAILER HAND BRAKE E a BRAKE n CONTROL o YY YQ E ST REAR AXLE SPRING BRAKE CHAMBERS FRONT AXLE BRAKE CHAMBERS 342 008 COMPRESSOR 0003 00 7 9 2320 302 10 THEORY OF OPERATION CONTINUED 0003 00 STEERING SYSTEM 1 The power steering system consists of an integral steering gear which includes a manual steering mechanism and hydraulic control valve hydr
47. 07 00 STOWAGE AND STENCILS CONTINUED 342 2012 pw 342 459 PASSENGER SIDE BOX STORAGE CUP HOLDERS 0007 00 7 9 2320 302 10 STOWAGE AND DECAL DATA PLATE GUIDE CONTINUED 0007 00 STOWAGE AND STENCILS CONTINUED 342 460 OVERHEAD STORAGE 0007 00 8 9 2320 302 10 OPERATOR TROUBLESHOOTING 9 2320 302 10 TROUBLESHOOTING INSTRUCTIONS 0008 00 GENERAL 1 This chapter provides information for identifying and correcting malfunctions which may develop while operating the M915A3 The Troubleshooting Symptom Index in WP 0009 00 lists common malfunctions which may occur and refers you to the proper page in WP 0010 00 Table 1 for a troubleshoot ing procedure If you are unsure of the location of an item mentioned in troubleshooting refer to WP 0002 00 pr WP 0004 00 Before performing troubleshooting read and follow all safety instructions found in the Warning Summary at the front of this manual The Troubleshooting Symptom Index cannot list all malfunctions that may occur nor all tests or inspections and corrective actions If a malfunction is not listed or is not cor rected by the listed corrective actions notify your supervisor When troubleshooting a malfunction a Locate the symptom or symptoms in WP 0009 00 fin that best describe the malfunc tion b Turn to the page in WP 0010 00 Table 1 where the troubleshooting procedures for the malfunction
48. 10 STOWAGE AND DECAL DATA PLATE GUIDE 0007 00 SCOPE 1 This work package shows the location for stowage of equipment and material required to be carried on the M915A3 2 This work package also includes illustrations showing the location of all decals data plates and stencils DECALS AND PLATES E NSN L MIL REG E 342 044 0007 00 1 9 2320 302 10 STOWAGE AND DECAL DATA PLATE GUIDE CONTINUED 0007 00 DECALS AND PLATES CONTINUED v noc COMPONENT DATA 915 MANUFACTURED BY FREIGHTLINER CORP NOTE USE VEHICLE IDENTIFICATION CONTRACT DAAEO7 96 C X075 NUMBER WHEN ORDERING PARTS VEHICLE MODEL NUMBER M9 5A3 WHEELBASE 162 00 INCHES ENGINE MODEL DETROIT DIESEL SERIES 60 ENGINE NO 501 26473 000 TRANS MODEL MAIN ALLISON AUTOMATIC HD4560P TRANS NO 507 16495 022 FRT AXLE MODEL ROCKWELL FF 961 FRT AXLE NO 510 12024 000 REAR AXLE MODEL ROCKWELL RT 40 145P REAR AXLE NO 511 23277 529 GVWR 52 000 LBS RATIO 5 9 TO 1 VEHICLE NOISE EMISSION CONTROL INFORMATION THIS VEHICLE IS EXEMPT FROM THE PROHIBITIONS OF SECTION 10 1 1 21 3 AND 5 OF THE NOISE CONTROL OF 1972 Ps LUCIO OP PORTLAND DECON
49. 2 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 INSTRUMENT PANEL CONTINUED Main Light Switch Five position switch To engage mechanical switch must be held in UNLOCK position up Switch positions are BO DRIVE Same as BO MARKER position but blackout drive light and trailer circuit also function BO MARKER Blackout marker tail lights and blackout stop lights function No other lights or electrical horn function OFF No lights or electrical horn function STOP LIGHT Electrical horn and all separately controlled lights function except blackout stop lights No marker tail lights or drive headlights function SER DRIVE Same as STOP LIGHT position but headlight and non blackout marker tail lights function 0004 00 7 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 INSTRUMENT PANEL CONTINUED Mechanical Switch Spring loaded two position switch Switch positions are a LOCK Down position prevents movement of main light switch b UNLOCK Up position enables movement of main light switch Hold lever in UNLOCK position and move main light switch to desired position Auxiliary Switch Four position switch Will not function if main light switch is OFF Switch positions ar
50. 4 2 Install Spare Wheel and Tire Assembly on Carrier a Secure hoist cable 3 by inserting wheel clamp plate 6 through wheel opening b Turn gear shaft 1 clockwise until spare wheel and tire assembly 5 is raised to stowed position c Engage pawl 2 on gear shaft 1 d Install two nuts 4 WHEEL AND TIRE ASSEMBLY REPLACEMENT NOTE When changing tires DO NOT substitute type or size tire unless all tires on the vehicle can be converted Keep all tires the same size and type 0014 00 3 9 2320 302 10 WHEEL AND TIRE MAINTENANCE INSTRUCTIONS CONTINUED 0014 00 WHEEL AND TIRE ASSEMBLY REPLACEMENT CONTINUED 1 Placement of Jack a For front tire replacement place jack 4 so jack ram 3 is under first small leaf spring 1 just forward of axle 2 342 068 b For rear tire replacement place jack 4 so jack ram 3 is under axle housing as near to wheels to be removed as possible 342 160 2 Remove Wheel and Tire Assembly a Block wheels b Remove spare wheel and tire assembly from carrier 0014 00 4 9 2320 302 10 WHEEL AND TIRE MAINTENANCE INSTRUCTIONS CONTINUED 0014 00 WHEEL AND TIRE ASSEMBLY REPLACEMENT CONTINUED NOTE On both sides of vehicle wheel nuts have right hand metric threads c Turn wheel until one hub pilot pad is in top center position d Loosen top and bottom wheel nuts and remove remaining eight wheel lugs nuts e Place jack
51. 4 01078 000 342 046 ENSURE VOLTMETER OF DEAD VEHICLE IS IN GREEN BAND BEFORE PUSHING STARTER BUITON CAUTION SLAVE START PROCEDURES 1 SLAVE CABLE TO RECEPTACLE ON DEAD VEHICLE 2 CONNECT OTHER END OF SLAVE CABLE TO RECEPTACLE ON LIVE VEHICLE 3 PLACE MASTER BATTERY SWITCH TO ON 4 START ENGINE OF LIVE VEHICLE AND RUN AT 1000 RPM UNTIL VOLTMETER OF DEAD VEHICLE 15 IN GREEN BAND STOP ENGINE REMOVE NATO SLAVE CABLE FROM RECEPTACLE VS y 342 2009 0007 00 3 0007 00 9 2320 302 10 STOWAGE AND DECAL DATA PLATE GUIDE CONTINUED 0007 00 DECALS AND PLATES CONTINUED RADIATOR COOLANT BE CAREFUL OF SCALDING COOLANT 2117 14 0007 00 4 9 2320 302 10 STOWAGE AND DECAL DATA PLATE GUIDE CONTINUED 0007 00 STOWAGE AND STENCILS PERSONNEL GEAR STORAGE BOX M13 DECONTAMINATION KIT MOUNTING TIE UE 100 LIFT BASIC ISSUE ITEMS 342047 DOWN DOWN STORAGE BOX DOWN 105 342 048 0007 00 5 9 2320 302 10 STOWAGE AND DECAL DATA PLATE GUIDE CONTINUED 0007 00 STOWAGE AND STENCILS CONTINUED 342 049 REFLECTIVE TAPE PERSONNEL GEAR STORAGE BOX RESP UE TAPE 0007 00 6 9 2320 302 10 STOWAGE AND DECAL DATA PLATE GUIDE CONTINUED 00
52. 5A3 until becoming familiar with the location and use of all controls and indicators This work package describes all operator controls and indicators 0004 00 1 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 INSTRUMENT PANEL 1 Instrument Cluster a Left Gage Panel 342 012 Air Vent Vents air into cab from heater ventilator defroster and air conditioner if equipped Louvered openings are adjustable Engine Water Registers engine coolant temperature in degrees Temperature Gage Fahrenheit Normal range is in green band 190 210 88 99 If needle goes into yellow band 210 215 99 120 C or red band 216 250 F 102 121 C stop and investigate cause Engine Oil Pressure Registers engine oil pressure in psi kPa Normal Gage pressure at rated speed 1200 rpm is 50 70 psi 345 483 kPa Pressure at idle speed 600 rpm is 15 psi 100 kPa minimum 0004 00 2 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 INSTRUMENT PANEL CONTINUED RED BAND Below 11 volts indicates a possible malfunction Stop and report problem to Unit Maintenance YELLOW BAND 11 12 volts indicates batteries are undercharged Turn off all electrical circuits if possible and run engine at highest rpm permitted for existing conditions If reading is still not in green band notify Unit Ma
53. 5th wheel in HAUL position 342 2011 CAUTION DO NOT operate vehicle if slide locking plungers are not fully engaged and landing gear is not fully retracted This could result in damage to tractor semitrailer and landing gear 12 Place fifth wheel slide control lever 4 to LOCKED position to engage slide locking plungers Ensure slide locking plungers 5 engage 13 Verify that primary lock release handle 6 and secondary lock release handle 7 are in 0005 00 13 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 OPERATE SLIDING FIFTH WHEEL COUPLE TO SEMITRAILER CONTINUED 14 Check semitrailer lights 15 Stow wheel blocks 16 Lift and secure semitrailer landing gear and stow float pads OPERATE SLIDING FIFTH WHEEL UNCOUPLE FROM SEMITRAILER WARNING Use caution when uncoupling from semitrailer BE ALERT for personnel in area Ensure that hands arms and body are clear of potential pinch points Failure to follow this warning may result in injury to personnel NOTE Truck and semitrailer must be aligned Use ground guide if one is available Stop truck and semitrailer Shift transmission into N Neutral Block wheels as required Pull semitrailer air supply valve 1 OUT ED De Apply parking brake CAUTION Lower landing gear until a small space can be seen between bottom of trailer and fifth wheel lube
54. 6 00 OPERATE ON SNOW AND ICE CONTINUED 8 9 After driving through slush or water drive slowly and test brakes Keep driving slowly maintaining moderate pressure on service brake pedal to create a slight drag When brakes are dry and operating properly resume normal speed If a difficult stretch of road approaches stop and inspect it carefully before driving on it Select transmission gear range that best suits road condition and place inter axle lockout control valve lever in LOCK position NOTE Shifts from N Neutral to D Drive or to R Reverse cannot occur if engine speed is above idle Reduce engine speed to idle and shift again 10 If vehicle becomes stuck or tires start spinning it may be possible to rock vehicle out Place inter axle lockout control valve lever in LOCK position and shift transmission to D Drive Apply light steady throttle never full throttle When vehicle has moved as far as it will go apply service brakes and allow engine to return to idle speed Shift transmission to R Reverse Again apply light steady throttle and allow vehicle to move rearward as far as it will go Apply service brakes and allow engine to return to idle speed This procedure can be continued as long as each directional shift moves vehicle a greater distance If not vehicle should be towed from its position b When stopping 1 2 Ease up on accelerator leaving vehicle in gear Apply service brakes
55. 850 00 181 7940 6850 00 174 1806 6850 00 926 2275 7930 00 282 9699 9140 00 286 5295 9140 00 286 5296 9140 00 286 5297 9140 00 286 5286 9140 00 286 5287 9140 00 286 5288 9140 00 286 5289 4 Item Name Description CAGEC Part Number ANTIFREEZE Permanent Ethylene Glycol Inhibited 81349 MILA46153 1 Gallon Bottle 5 Gallon Can 55 Gallon Drum ANTIFREEZE Permanent Type Arctic Grade 81349 MIL A 11755 55 Gallon Drum COMPOUND Cleaning Windshield 81348 O C 1901 16 Ounce Can DETERGENT General Purpose Liquid 81348 7930 00 282 9699 1 Gallon Can FUEL Diesel DF 2 Grade 81346 ASTM D 75 5 Gallon Can DF 1 Grade 55 Gallon Drum 16 Gage 55 Gallon Drum 18 Gage FUEL Diesel DF 1 Grade Winter 81346 ASTM D 75 Bulk 5 Gallon Can 55 Gallon Drum 16 Gage 55 Gallon Drum 18 Gage 0020 00 2 0020 00 9 2320 302 10 EXPENDABLE AND DURABLE ITEMS LIST CONTINUED 0020 00 1 Item Number 3 National Stock Number 9150 01 197 7693 9150 01 197 7688 9150 01 197 7690 9150 01 197 7692 9150 01 197 7691 9150 01 035 5390 9150 01 035 5391 9150 01 035 5392 9150 01 035 5395 9150 01 035 5394 9150 01 048 4591 9150 01 035 5395 9150 01 035 5396 Table 1 Expendable and Durable Items List Continued 4 Item Name Description CAGEC Part Number GREASE Automotive and Artillery GAA 81349 MIL G 10924 14 Ounce Cartridge 1 1 4 Ounce Tube 2 1 4
56. 9 782 0726 TABLE OF CONTENTS Warning Summary ecc TE ERAS H How to Use This 1 CHAPTER 1 INTRODUCTORY INFORMATION WITH THEORY OF OPERATION WP 0001 00 General 0001 00 1 WP 0002 00 Equipment Description and 0002 00 1 WP 0003 00 Theory of 0003 00 1 CHAPTER 2 OPERATING INSTRUCTIONS WP 0004 00 Description and Use of Operator s Controls and Indicators 0004 00 1 WP 0005 00 Operation Under Usual Conditions 0005 00 1 WP 0006 00 Operation Under Unusual Conditions 0006 00 1 WP 0007 00 Stowage and Decal Data Plate Guide 0007 00 1 9 2320 302 10 TABLE OF CONTENTS CONTINUED Page CHAPTER 3 OPERATOR TROUBLESHOOTING WP 0008 00 Troubleshooting 1 0008 00 1 WP 0009 00 Troubleshooting Symptom 4 0009 00 1 WP 0010 00 Troubleshooting 0010 00 1 CHAPTER 4 OPERATOR MAINTENANCE INSTRUCTIONS WP 0011 00 Preventive Maintenance Checks and Services PMCS Introduction sero a etes era ee ene ee andes 0011 00 1 WP 0012 00 Preventive Maintenance Checks and Services PMCS l 0012 00
57. A CONTINUED 0002 00 EQUIPMENT DATA CONTINUED Fuel System zen ipt eh En UN GS diesel fuel injected Fuel Filter Type ue ser primary 1 secondary replaceable element Type o AA dry element Quantity ice eG wk elas TRUE ed rs 1 Cooling System Radiator Working 10 psi 69 kPa Coolant Inhibitor 1 replaceable element Electrical System Typen A uei RR dual 12 24 volt Batteries Quantity el sa 4 MVOltage ces neces ence lod E Fiet 12 volt Transmission Manufacturer llle hen Allison li x E HD 4560P ies dee ea etd vr aee tete lee 6 speed automatic Shift Seleetor escoria creada ro pushbutton Rockwell Type i A dd e er ve abet e I beam FF961 Rated Capacity tb ue tag ferr ep 12 000 lb 5448 kg Maximum Steering 32 Rear Axle Tandem Manufacturer 2 22 Saki ox teen rr ers ees Rockwell RT 40 145P Rat d Capacity eR RR eh E 38 000 Ib 17 252 kg iem la Units 4 44 1 Inter axle 1 bevel gear Traction Control 0 0 0 eee ee eee air controlled 0002 00 7 9 2320 302 10 EQUIPMENT DESCRIPTION AND DATA CONTINUED EQUIPMENT DATA CONTINUED Brake System Actuation A UT E Beamer Pr
58. ACEMENT CONTINUED WARNING Whenever wheel lug nuts require tightening or a wheel has been removed and replaced lug nuts must be tightened to the required torque Failure to follow this warning may result in serious injury to personnel and damage to equip ment NOTE e Tighten wheel nuts with wheel wrench After 25 miles 40 km retighten wheel nuts Within next 75 miles 121 km have Unit Maintenance torque wheel nuts to proper torque Tightening pattern is identical for all wheel assemblies h Tighten wheel lug nuts according to tightening pattern 342 070 WHEEL LUG NUT TIGHTENING PATTERN i Notify Unit Maintenance as soon as possible to apply proper torque j Stow defective tire in spare wheel and tire carrier and have it replaced or repaired as soon as possible k Remove wheel blocks 0014 00 7 0014 00 8 Blank 9 2320 302 10 BATTERY BOX COVER REPLACEMENT 0015 00 0 WARNING e To avoid eye injury eye protection is required when working around bat teries DO NOT smoke use open flame make sparks or create other ignition sources around batteries If a battery is giving off gases it can explode and cause injury to personnel Remove all jewelry such as rings ID tags watches and bracelets If jewelry or a tool contacts a battery ter minal a direct short will result in instant heating injury to personnel and damage to equipment e Sulfuric acid contained in batteries can cause ser
59. ATION CONTINUED 0003 00 EXHAUST SYSTEM The exhaust system removes exhaust gases from the engine through the exhaust manifold and turbocharger The gases flow into exhaust pipes and a muffler to the atmosphere above the cab EXHAUST MANIFOLD MUFFLER EXHAUST PIPES 342 005 0003 00 3 9 2320 302 10 THEORY OF OPERATION CONTINUED 0003 00 COOLING SYSTEM The cooling system consists of one circulating pump a remote mounted coolant filter two 180 F 82 C thermostat for controlling fluid flow a transmission oil cooler a radiator and a belt driven fan The cooling system cools the engine by circulating pressurized ethylene glycol based coolant through the engine and radiator TWO THERMOSTATS CIRCULATING PUMP INLET FROM RADIATOR y 342 006 DDEC IV ENGINE ELECTRICAL SYSTEM 1 Four 12 volt batteries connected in series parallel supply the 12 volt electrical system and provide 24 volts for the starter motor blackout lights accessories and trailer connec tors 2 The Dual Voltage Alternator Control DUVAC mounted on the firewall in the engine compartment regulates the distribution of 12 and 24 volts 0003 00 4 9 2320 302 10 THEORY OF OPERATION CONTINUED 0003 00 ELECTRICAL SYSTEM CONTINUED VOLTAGE REGULATOR ALTERNATOR TO ENGINE ECU TO TRANS ECU MASTER BATTERY SWITCH BATTERY EQUALIZER STARTER DEA 12 VOLT 3 BATTERY a
60. CORRECTIVE MALFUNCTION INSPECTION ACTION 3 Wheel Wobbles 1 Check for loose or Tighten loose lug nuts missing lug nuts and notify Unit Maintenance to apply proper torque If lug nuts are missing notify Unit Maintenance Check for bent wheel If rim is bent replace rims wheel and tire assembly WP 0014 00 Notify Unit Maintenance to apply proper torque Check for loose worn If steering or suspension or damaged steering components are and suspension damaged notify Unit components Maintenance 0010 00 8 9 2320 302 10 CHAPTER 4 OPERATOR MAINTENANCE INSTRUCTIONS 9 2320 302 10 PREVENTIVE MAINTENANCE CHECKS AND SERVICES PMCS INTRODUCTION 0011 00 GENERAL To ensure that the M915A3 Tractor Truck is ready for operation at all times it must be inspected on a regular basis so that defects may be found and corrected before they result in serious damage equipment failure or injury to personnel Table 1 inLWP 0012 00 contains sys tematic instructions on inspections adjustments and corrections to be performed by the opera tor crew to keep your equipment in good operating condition and ready for its primary mission EXPLANATION OF TABLE ENTRIES 1 Item Number Item No Column Numbers in this column are for reference When completing DA Form 2404 Equipment Inspection and Maintenance Worksheet include the item number for the check service indicating a fault Item numbers also appear in the order
61. GARS zi ev EDO EIE ERAN ERU Single Channel Ground Airborne Radio System TMDB e se Test Measurement and Diagnostic Equipment 0001 00 3 0001 00 4 Blank 9 2320 302 10 EQUIPMENT DESCRIPTION AND DATA 0002 00 EQUIPMENT CHARACTERISTICS CAPABILITIES AND FEATURES 1 Characteristics a The M915A3 Tractor Truck is used to transport M871 M872 and M1062 semitrail ers on line haul missions It has a Gross Vehicle Weight Rating GVWR of 52 000 Ib 23 608 kg and is equipped with a two way oscillating sliding fifth wheel compatible with a two inch kingpin Maximum towed load on kingpin is 30 000 Ib 13 620 kg 2 Capabilities and Features a While operating on Class I roads the fully loaded M915A3 can maintain a speed of 65 mph 105 kph on level roads and 29 mph 47 kph while ascending a 3 percent grade It has a minimum turning diameter curb to curb of 53 ft 9 in 16 4 m Average cruising ranges at Gross Combination Weight Rating GCWR with a full tank of fuel will vary based on conditions e g varying loads prolonged idle and climatic conditions Cruising range is optimally 400 miles 640 km The M915A3 is equipped with an instrument panel mounted speedometer and tachometer which register truck ground speed and engine speed The M915A3 has the following capabilities and features 1 air activated front and rear non asbestos cam brakes with a four channel anti lock brake system ABS to provide signif
62. MIL L 46167 Lubricating Oil ICE Arctic Engine Crankcase w Filters Transmission Power Steering Reservoir Oil Can Points GO MIL PRF 2105 Lubricating Oil Gear Multipurpose TM 9 2320 302 10 Expected Temperatures 6 F to 67 F to 122 F 4 F to 50 F 32 F Refill 14 C to 20 C to 55 C to Capacity 50 C 10 C 0 C D Daily W Weekly OC On Condition 41 Qt See Chart A 38 81 51 Qt See Chart B 48 1 2 Qt See Chart A 1 9 1 As Reqd See Chart A Front Axle Wheel As Reqd See Chart C Bearings ANTIFREEZE MIL A 46153 Ethylene Glycol Inhibited Heavy Duty Antifreeze MIL A 11755 Ethylene Glycol Arctic Grade P 65Qt See Chart D For Arctic Operation refer to FM 9 207 0016 00 4 9 2320 302 10 Table 1 CHART A ENGINE POWER STEERING AND OIL CAN POINTS Lubricant OE HDO MIL L 2104 OEA MIL L 46167 OE HDO 15 40 0 1236 OE HDO 10 0 237 OE HDO 30 0 238 OE HDO 40 N A EXPECTED TEMPERATURES la a fe l oleae ENERO COS EL ES E E I Oil ICE E I Fa Oil ICE Fa If OEA lubricant is required to meet the low expected temperature range OEA lubricant is to be used in lieu of OE HDO 10 lubricant for all expected temperatures where OE HDO 10 is specified Lubricant OE HDO MIL L 2104 OEA MIL L 46167 OE HDO 15 40 0 1236 OE HDO 10 0 237 Table 2 CHART B TRANSMISSION EXPEC
63. OFF Adjusts the volume of the driver display unit speaker Activates Failure Display Mode blink codes when the knob is pressed and held for five seconds and released Located under the top cover of the driver display unit Sounds audible tones to alert the driver of a possible hazard May be set to limit the volume to a minimum level 0004 00 21 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 COLLISION WARNING SYSTEM CWS CONTINUED Range Control and Accident Recorder Selection Light Sensor Red Accompanied with Yellow and Orange Orange Accompanied with Yellow Yellow Red System Failure When rotated this control provides detection range adjustment of the first alert between 3 and 2 125 seconds Function may be configured to prevent range adjustment control Accident Reconstruction is initiated by pushing and holding this knob for 5 seconds thereby freezing the most recent data in half of the allocated memory Photo sensor that senses ambient lighting and adjusts intensity of the indicator lights accordingly i e increases brightness of indicator lights in daytime and decreases brightness of indicator lights at nighttime This indicator illuminates when an object is detected at 1 second with vehicle opening and no tone with vehicle closing accompanied by audible tones At a 1 2 second or less following interval opening and closing the tones ar
64. ON UNDER USUAL CONDITIONS 0005 00 GENERAL WARNING This vehicle has been designed to operate safely and efficiently within the limits specified in this TM Operation beyond these limits is prohibited in accordance with AR 70 1 without written approval from Commander U S Army Tank automotive and Armaments Command ATTN AMSTA LC AF IM Warren MI 48397 5000 This work package contains instructions for safely operating the M915A3 under usual condi tions Unusual conditions are defined and described in WP 0006 00 INITIAL ADJUSTMENTS DAILY CHECKS AND SELF TESTS 1 Place master battery switch to ON 2 Perform Before operation Preventive Maintenance Checks and Services PMCS Chap ter 4J WP 0012 00 3 Change military load classification if necessary 4 Adjust side mirrors 3 by loosening two nuts 2 and moving side mirror to proper posi tion Tighten two nuts CAUTION DO NOT attempt to adjust spotter mirrors without loosening screws Attach ing screw may become loose and result in loss of spotter mirror 5 Adjust spotter mirrors 1 by loosening three screws 4 and moving spotter mirror to proper position Tighten three screws 342 029 6 Occupy and adjust seat Te Adjust steering wheel 0005 00 1 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 INITIAL ADJUSTMENTS DAILY CHECKS AND SELF TESTS CONTINUED WARNING Use of seat belts while operating vehicle is
65. RAL This list identifies items that do not have to accompany the M915A3 Tractor Truck and that do not have to be turned in with it These items are authorized to you by CTA MTOE TDA or JTA EXPLANATION OF COLUMNS IN THE AAL 1 Column 1 National Stock Number NSN Identifies the stock number of the item to be used for requisitioning purposes 2 Column 2 Description Commercial and Government Entity Code CAGEC and Part Number P N Identifies the Federal item name in all capital letters followed by a minimum description when needed The last line below the description is the CAGEC in parentheses and the part number 3 Column 3 Usable On Code When applicable gives you a code if the item you need is not the same for different models of equipment 4 Column 4 Unit of Measure U M Indicates the physical measurement or count of the item as issued per the National Stock Number shown in Column 1 5 Column 5 Qty Recm Indicates the quantity recommended 0019 00 1 9 2320 302 10 ADDITIONAL AUTHORIZATION LIST AAL CONTINUED Table 1 Additional Authorization List 1 2 3 National Description Usable Stock Number CAGEC and Part Number on Code 6130 01 449 7594 ANALYZER CHARGER Battery 0GIL1 555A 5110 00 293 2336 AXE SINGLE BIT 4 16 HD Wt 35 5 36 5 in Long 19207 6150925 5510 00 491 0306 BLOCK WOOD 4X8X9 in 19207 CPR103023 1 5510 00 491 0307 BLOCK WOOD
66. S OF END ITEM AND BASIC ISSUE ITEMS BII LISTS CONTINUED 342 075 Table 2 Basic Issue Items List Continued 1 2 3 Illus National Description Usable on Number Stock Number and Part Number Code 6220 01 327 3225 LAMP UNIT VEHICULAR 12 Volt 25 Ft Cord in BII storage box 78422 1401152 6220 01 218 4968 LIGHT WARNING 10402 01 06831466LAPA 5120 01 398 7966 PLIERS SLIPJOINT in BII storage box 72368 J26 5120 00 227 7356 SCREWDRIVER FLAT TIP in BII storage box 64067 5120 00 227 7356 5120 00 234 8913 SCREWDRIVER CROSSTIP in BII storage box 75347 BD122 0018 00 6 0018 00 9 2320 302 10 COMPONENTS OF END ITEM AND BASIC ISSUE ITEMS BII LISTS CONTINUED 0018 00 21 bw M e 342 076 Table 2 Basic Issue Items List Continued 1 2 3 Illus National Description Usable on Number Stock Number CAGEC and Part Number Code 9905 00 148 9546 WARNING DEVICE KIT in BII storage box 19207 11669000 5120 00 240 5328 WRENCH ADJUSTABLE 8in in BII storage box 19207 11655778 3 WRENCH SOCKET in BII storage box 03683 19951 WRENCH SOCKET in BII storage box TBD 75 15 16 0018 00 7 0018 00 8 Blank 9 2320 302 10 ADDITIONAL AUTHORIZATION LIST AAL 0019 00 SCOPE This work package lists additional items you are authorized for the support of the M915A3 Tractor Truck GENE
67. Services PMCS for M915A3 Continued Location Item To Item Check Not Fully Mission No Interval Service Procedure Capable If 29 After Overall c Check truck for obvious dam c Damage that would Con t View age that would impair opera impair operation is tion evident d Check for damage to rear ser d Lights are damaged vice and blackout lights and marker clearance lights e Check for damage to exhaust e Pipe clamp or hard system components Ensure ware damaged or that components are securely missing mounted and are not leaking 30 After Wheels and WARNING Tires Operating truck with an underinflated or defective tire may lead to tire failure and loss of steering control Injury to personnel or damage to equip ment may result Check tires for defects underin Tire is missing flation or loose or missing wheel deflated unservice studs or lug nuts able or two or more wheel studs or lug nuts are missing 0012 00 15 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Location Item To Item Check Not Fully Mission No Interval Service Procedure Capable If Fifth Check for damage to fifth wheel Damage that prevents Wheel ramps 44 coupling is present Ramps Taillights Check for damage to taillights Taillights are damaged 41 Trailer Check for presence of dummy Damage that prevents Gladhands couplings 42 a
68. TED TEMPERATURES BP ll o d d c a d b dd e Lubricating Oil ICE Tactical Da Oil ICE za If OEA lubricant is required to meet the low expected temperature range OEA lubricant is to be used in lieu of OE HDO 15 40 lubricant for all expected temperatures where OE HDO 10 and OE HDO 15 40 are specified 0016 00 5 Lubricant GO 0 226 GO 85 140 0 228 Lubricant MIL A 46153 MIL A 11755 MIL A 46153 MIL A 11755 TM 9 2320 302 10 Table 3 CHART C FRONT AXLE WHEEL BEARINGS EXPECTED TEMPERATURES Oil Gear MIL PRF 2105 Multipurpose GO 80 90 THE Table 4 CHART D ANTIFREEZE EXPECTED TEMPERATURES E d bid vel Arctic vel rade 0016 00 6 9 2320 302 10 FUEL FILTER WATER SEPARATOR PRIMARY FUEL FILTER 342 2002 2 lt or a o O lt t l TT m I x lt gt z A e Lu gt WHEEL BEARINGS 0016 00 7 9 2320 302 10 FILL AND LEVEL CHECK POWER STEERING RESERVOIR 842 058 ENGINE CHECK 0016 00 8 9 2320 302 10 342 058 TRANSMISSION CHECK AND FILL VIEW F CAB DOOR OIL CAN POINTS 342 025 0016 00 9 9 2320 302 10 lt d a z E LLI LLI I lt o Y gt gt OIL CAN POINTS 0016 00 10 9 2320 302 10 NOTES 1 FRONT AXLE WHEEL
69. TERS to cre ate emphasis Instructions are located with illustrations that show the specific task on which the operator is working Dashed leader lines used in illustrations indicate that called out items are not visible i e they are located within the structure Dashed leader lines in the Lubrication Chart indicate that lubrication is required on BOTH sides of the equipment Technical instructions include metric units in addition to standard units A metric conver sion chart is provided on the inside back cover An alphabetical index is provided at the end of the manual to assist in locating information not readily found in the Table of Contents FOLLOW THESE GUIDELINES WHEN YOU USE THIS MANUAL Read through this manual and become familiar with its contents before attempting to oper ate or maintain the truck A Warning Summary is provided the beginning of this manual and should be read before attempting to operate or maintain the truck iii iv Blank 9 2320 302 10 1 INTRODUCTORY INFORMATION WITH THEORY OF OPERATION 9 2320 302 10 GENERAL INFORMATION 0001 00 SCOPE 1 of Manual This manual is for use in operating and maintaining the M915A3 Trac tor Truck 2 Equipment Name and Model Number Truck Tractor Line Haul 52 000 GVWR 6X4 M915A3 3 Purpose of Equipment The M915A3 Tractor Truck is a 6 X 4 prime mover of semitrail ers used primarily to transport containers b
70. a Class III oil coolant View of fluid leakage such as oil or fuel leaks are evi coolant or fuel dent NOTE If leakage is detected further investigation is required to deter mine location and cause of leak b Check front gladhands for dam age Ensure that gladhand vent holes are not plugged Ensure that dummy couplings are installed 0012 00 9 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Location Item To Item Check Not Fully Mission No Interval Service Procedure Capable If 22 After Overall c Check truck for obvious dam c Damage that would Con t View age that would impair opera impair operation is tion evident d Check for damage to front ser d Lights are damaged vice and blackout lights and marker clearance lights e Check CWS antenna and side sensor for obvious damage Wheels and WARNING Tires Operating truck with an underinflated or defective tire may lead to tire failure and loss of steering control Injury to personnel or damage to equip ment may result Visually check tires for defects Tire is missing underinflation or loose or missing deflated unserviceable wheel studs or lug nuts or two or more wheel studs or lug nuts are missing 24 After Front Axle Check that lubricating oil is visi Wheel ble in sight glass 26 and rubber Bearings plug 25 is installed If oil is not visible in s
71. after fording lubrication is required OPERATE IN SANDY OR DUSTY CONDITIONS 1 Maintain steady even movement with transmission in lower gears with inter axle lockout control valve lever in LOCK position Try to keep vehicle rolling without straining engine and powertrain If vehicle gets stuck reduce tire pressure to gain additional traction Reduce pressure in front tires to 50 psi 345 kPa and pressure in rear tires to 45 psi 310 kPa Inflate tires to normal pressures once vehicle is freed If vehicle bogs down after tire pressure has been reduced place boards brush canvas or similar materials under and in front of tires after shoveling a clear path ahead of each tire This should improve traction If these efforts fail and it becomes evident that vehicle will not free itself have another vehicle tow stuck vehicle WP 0006 00 0006 00 10 9 2320 302 10 OPERATION UNDER UNUSUAL CONDITIONS CONTINUED 0006 00 OPERATE IN SANDY OR DUSTY CONDITIONS CONTINUED 5 Whenever operating in sandy or dusty areas you should a Ensure each tire has a valve cap b Check engine and transmission temperature and engine oil pressure frequently c If vehicle overheats stop and find out why Service vehicle or notify Unit Mainte nance as necessary d Ensure engine oil filler tube and transmission fluid filler tube are cleaned before dipsticks are removed to check fluid levels Clean accumulations of sand and dirt from
72. aged pipes missing ware damaged or miss clamps obvious damage and ing that have caused rusted through conditions that cre exhaust leaks ate exhaust leaks CAB INTERIOR Doors and Check operation and general con Windows dition of cab doors and windows 0012 00 31 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Item To Item Check Not Fully Mission No Interval Service Procedure Capable If Monthly Undercar Check for obvious damage to Any loose or broken riage frame and undercarriage frame side rails Frame crossmembers bro Cab and ken welds or broken Propeller bolts are found Shafts b Check propeller shafts and U b Mounting bolts and joints for loose or broken bolts nuts are loose or and nuts missing Monthly Air Check all air lines fittings and Any air lines fittings System valves for looseness or damage or valves are loose or damaged Monthly Spare a Check spare wheel and tire for a Spare wheel and tire Wheel and cuts gouges cracks or uneven is missing or dam Tire and wear aged Vehicle Tires b Check for secure mounting of spare wheel and tire c Check all vehicle tires for cuts c Any tire is missing gouges cracks or uneven wear or damaged Monthly Radiator Remove dirt and debris from cooling fins Monthly Air Condi Check air conditioner operation tioner Operate for at least five
73. all Tire Chains Lay chains flat on ground alongside tire to be mounted Untangle any cross chains Open all cams 4 to longest spacing Pick up rear side chains 1 no cams and place over top of tire Tuck last crossmember 2 against bottom of tire with loose side chain 3 sticking out away from tire Roll vehicle in direction of last crossmember 2 approximately 1 4 tire revolu tion 342 041 0006 00 13 9 2320 302 10 OPERATION UNDER UNUSUAL CONDITIONS CONTINUED 0006 00 OPERATE ON SNOW OR ICE CONTINUED f Pull inside side chain 5 snug and hook into appropriate link to hold snug g Pull outside side chain 6 snug and hook 342 042 NOTE Hooks must be even Same number of loose links must appear on each side of chain If uneven loosen outside hook and rehook both inside and outside hooks until they are even h Close cams 4 by inserting key 7 in slot and rotating 180 degrees clockwise Start with cam closest to side chain hook NOTE four cams should not have to be locked for chain to be tight i If additional tightening is required tighten cam on opposite side of tire Continue tightening cams as required j Ifall four cams are tight and chain is not tight loosen all four cams and resnug side chain at fastener hook until no more than three cams require adjustment k Drive approximately 1 2 mile and readjust chains as required 342 043 0006 00 14 9 2320 302
74. ance Checks and Services PMCS for M915A3 Continued Item To Check Not Fully Mission Interval Service Procedure Capable If Before Engine a Start engine Verify that low air a Engine will not start Startup pressure warning light 18 and Low air pressure or warning buzzer turn off warning light and warning buzzer stay on b Check that ABS indicator lights b Any warning light 19 turn off after 4 second self stays on test If not notify supervisor OOOOSOSGOOOORS FASTEN SEAT BELT 342 052 Check that all warning lights go Any warning light out after approximately 7 sec stays on onds NOTE DO NOT run engine above idle speed until oil pressure gage indicates at least 15 psi 103 kPa at idle speed Check engine rpm on tacho At idle engine meter speed is not 600 rpm Before Seats and a Check seats and seat belts for a Seat belts are not Seat Belts security of mounting and dam serviceable age 0012 00 5 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Item To Item Check Not Fully Mission No Interval Service Procedure Capable If 9 Before Seats and NOTE adjustments should be made while seated Pri mary air pressure gage must indicate a minimum of 60 psi 414 kPa to adjust height of seat b Check for proper operation of b Seat missing seat height adjustme
75. are missing or nut wrench and handle lug nuts are loose c Check wheel for cracks breaks c Wheel is cracked or bends broken or bent 0012 00 25 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Location Item To Item Check Not Fully Mission No Interval Service Procedure Capable If Weekly Batteries me E WARNING To avoid eye injury eye protection is required when working around batteries DO NOT smoke use open flame make sparks or create other igni tion sources around batteries If a battery is giving off gases it can explode and cause injury to per sonnel Remove all jewelry such as rings ID tags watches and bracelets If jewelry or a tool con tacts a battery terminal a direct short will result in instant heating injury to personnel and damage to equipment CAUTION To reduce battery damage check battery compart ment for corrosion greenish white powder and do not jerk or pull on battery cables during visual inspection a Release latches 59 and One or more batter remove cover 56 Check bat ies are damaged or tery compartment for damaged missing or missing batteries b Check for damaged or missing b One or more filler filler caps 57 caps are damaged or missing c Check for missing broken Cables are missing split or frayed cables 60 broken split frayed d Check for damaged terminal d Terminal
76. ation Continued warning light and buzzer go off and release parking brake Stop engine and note reservoir pressure Fully press and hold service brake pedal for two minutes Have crewmember check for leaks Reservoir pressure loss during two minute period should not exceed 5 psi 34 kPa NOTE Any change in pressure on brake pedal will cause a change in air pressure reading 2 Push trailer air supply If air leaks are present or control knob in ON to reservoir pressure loss charge semitrailer air exceeds 5 psi 34 kPa in reservoirs and repeat two minutes trouble step 1 Have shoot semitrailer crewmember check semitrailer for leaks Pressure loss should not exceed 5 psi 34 kPa in two minutes 3 Trailer Brakes Will Not Apply Check intervehicular air Connect air hoses When Pedal or Hand Control on hoses for proper Steering Column is Used connections to semitrailer 4 Trailer Brakes Will Not Release 1 Check position of Move control to forward trailer brake hand OFF position control Check position of Push knob in ON trailer air supply control knob 0010 00 2 9 2320 302 10 Table 1 Troubleshooting Procedures Continued TEST OR CORRECTIVE INSPECTION ACTION MALFUNCTION 4 Trailer Brakes Will Not Release Continued 3 Check intervehicular air hoses for proper connections Check vehicle system for leaks air If leaks are not found and vehicle com
77. aulic hoses power steering pump reservoir and other components 2 The power steering pump driven by the engine provides the power assist for the steering system STEERING GEAR RESERVOIR 342 009 TRACTION CONTROL SYSTEM The inter axle differential lock is controlled by the air operated lever labeled INTER AXLE DIFFERENTIAL on the driver s instrument panel Under normal driving conditions the con trol lever should be in the UNLOCKED position During poor driving conditions the control lever may be moved to the LOCKED position to improve traction When the inter axle differen tial lock is applied the drive shaft becomes a solid connection between the two rear axles 342 158 0003 00 8 9 2320 302 10 THEORY OF OPERATION CONTINUED 0003 00 REAR SUSPENSION SYSTEM The TufTrac rear suspension system consists of two parabolic taper leaf springs and two shock absorbers per side and an arrangement of torque rods The suspension system is designed to provide a high degree of ground clearance and articulation while maintaining an equal load over each wheel Ride characteristics are similar whether loaded or unloaded 0003 00 9 9 2320 302 10 THEORY OF OPERATION CONTINUED 0003 00 AIR CONDITIONING SYSTEM 1 The air conditioning unit is part of the heater and is mounted under the glove compart ment It is a single unit consisting of a heater core air conditioning evapora
78. cating oil is visi Wheel ble in sight glass 26 and rubber Bearings plug 25 is installed If oil is not visible in sight glass remove plug and add until level is even with plug opening 342 053 Transmis CAUTION sion hoe Transmission must not be operated for extended periods of time until a Hot Check has verified proper fluid level Transmission damage can result from extended operation at improper fluid level conditions With truck on level ground start engine and run at idle with trans mission in N Neutral until trans mission oil temperature gage registers 60 120 F 16 49 Perform cold oil check 0016 00 When temperature has reached 160 200 F 71 94 perform hot oil check Add transmission fluid as required through fill tube 47 until level on dipstick 48 is cor rect WP 0016 00 Shut down engine 0012 00 18 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Item To Item Check Not Fully Mission No Interval Service Procedure Capable If 37 Transmis sion 342 058 001200 19 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Location Item To Item Check Not Fully Mission No Interval Service Procedure Capable If 38 After Air Reser NOTE voirs Perform the following service at all air reservoirs Open air reservoir drain valves 49
79. cle Wanders or Pulls to One Side on Level Pavement 0010 00 7 3 Wheel Wobbles 0 0 0 cece mmn 0010 00 8 0009 00 2 9 2320 302 10 TROUBLESHOOTING PROCEDURES 0010 00 Table 1 Troubleshooting Procedures TEST OR CORRECTIVE MALFUNCTION INSPECTION ACTION AIR SYSTEM AND BRAKES 1 Air Reservoir Pressure Low l Check whether air Close draincocks Warning Light and Buzzer are reservoir draincocks ON are closed If vehicle is not Pull knob out OFF coupled to a semitrailer check position of trailer air supply control knob Start engine and check If air leaks are present for air leaks at air notify Unit Maintenance reservoirs hoses fittings and intervehicular air hose connections Perform semitrailer troubleshooting 2 Air System Loses Pressure During Vehicle Operation or Low Air Pressure Warning Light and Buzzer Come On During Vehicle Operation NOTE Any change in pressure on brake pedal will cause a change in air pressure reading 0010 00 1 9 2320 302 10 Table 1 Troubleshooting Procedures Continued TEST OR CORRECTIVE MALFUNCTION INSPECTION ACTION 2 Air System Loses Pressure During 1 Ensure trailer air Close air reservoir Vehicle Operation or Low Air supply control knob is draincocks If leaks are Pressure Warning Light and pulled out OFF present notify Unit Buzzer Come On During Vehicle Operate engine until Maintenance Oper
80. cleaner restriction indicator operating in temperature below 32 F 0 C check that cold weather starting procedure was used of master battery switch of selection of shift Check for dirty loose If cable Engine Starts but Misfires or Runs Rough After Proper Warmup Period Excessive Consumption Engine Oil Check restriction indicator or broken cables battery broken Unit is notify Maintenance air cleaner Check for loose oil lines and oil leaks 0010 00 5 If indicator is not clear notify Unit Maintenance Perform cold weather starting procedure If indicator is not clear notify Unit Maintenance If indicator is not clear notify Unit Maintenance Perform cold weather starting procedure Place master battery switch in ON position Place ignition switch in ON position Select transmission shift selector N Neutral pushbutton Clean cables Tighten loose connections at batteries ground and starter dirty If indicator is not clear notify Unit Maintenance If oil lines are loose or leaks are found notify Unit Maintenance 9 2320 302 10 Table 1 Troubleshooting Procedures Continued TEST OR CORRECTIVE INSPECTION ACTION 8 Excessive Exhaust Smoke At l Check air cleaner If indicator is not clear Normal Engine Operating Speed restriction indicator notify Unit Maintenance 2 Check for waterinfuel Drain fuel filters
81. d the side sensor detects an object the red indicator light comes on and the driver display unit speaker sounds a double tone The tone is sounded only once per activation ofthe turn signal Lights if a failure of the side sensor occurs and if the criteria for heavy rain is met Light Sensor Photo sensor that senses ambient light and adjusts intensity of the indicator lights accordingly i e increases brightness of indicator lights in daytime and decreases brightness of indicator lights at nighttime Yellow No Vehicle Indicator light stays on when no objects are detected Detected by the side sensor Red and Yellow Indicates the side sensor is temporarily unable to detect objects in heavy rain 0004 00 24 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 SEAT CONTROLS 0 Y 4 Fa 342 023 Lumbar Adjustment Controls lumbar support in seat Rotate knob forward Knob to increase and rearward to decrease lumbar support Seat Back Adjust Adjusts seat back angle Apply or remove pressure ment Lever from seat back and hold lever rearward to adjust 0004 00 25 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 SEAT CONTROLS CONTINUED Seat Height Vehicle air pressure must be above 60 psi 414 kPa Adjustment Control to operate lever Push lever up to raise seat and down Valve Lever to lower s
82. death to personnel and damage to equipment e Improper use of lifting equipment and improper attachment of cables to vehicle can result in serious personnel injury and equipment damage Observe all standard rules of safety CAUTION Front extendable bumper is for overhead sling use only It is not intended to be used to tow or extract a mired vehicle DO NOT extend the bumper more than one adjustment hole ALWAYS have both pins engaging the bumper and bumper extension on each side Failure to follow this caution could result in damage to equipment CAUTION DO NOT attempt to overhead lift vehicle without extending front bumper extensions Failure to follow this caution will result in damage to cab NOTE Both left and right side bumper extensions are adjusted in the same manner Right side is shown 0005 00 23 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 PREPARATION FOR TRANSPORT CONTINUED 1 Remove two retaining pins 1 flat washers 2 and straight pins 3 from front bumper 4 2 Position bumper extension 6 in front bumper 4 so straight pins 3 will engage two inside adjustment holes 5 on bumper extension 3 Install two straight pins 3 flatwashers 2 and retaining pins 1 in front bumper 4 342 037 5 4 To lift vehicle attach suitable lifting device to lifting shackles and bumper extensions Lift vehicle slowly and have observers watch for any signs of cable fai
83. distribution number IDN 381098 requirements for TM 9 2320 302 10 RECOMMENDED CHANGES TO PUBLICATIONS AND Use Part Il reverse for Repair Parts and BLANK FORMS Special Tool Lists RPSTL and Supply Catalogs Supply Manuals SC SM For use of this form see AR 25 30 the proponent agency is ODISC4 Jul 01 TO Forward to proponent of publication or form Include ZIP Code FROM Activity and location Include ZIP Code AMSTA LC CI TECH PUBS TACOM RI 125th Transportation Company 1 Rock Island Arsenal ATTN Motor SGT SGT Wilson Rock Island IL 61299 7630 Ft Riley KA 78665 4000 PART 1 ALL PUBLICATIONS EXCEPT RPSTL AND SC SM AND BLANK FORMS PUBLICATION FORM NUMBER DATE TITLE Truck Tractor Line Haul for TM 9 2320 302 10 28 May 2001 Operator s Manual ITEM PAGE PARA LINE FIGURE TABLE RECOMMENDED CHANGES AND REASON NO 0020 00 2 Part number for item 4 detergent is incorrect Reference to line numbers within the paragraph or subparagraph TYPED NAME GRADE OR TITLE TELEPHONE EXCHANGE AUTOVON SIGNATURE PLUS EXTENSION Johnny Wilson E 5 MOTOR SGT DA f RM 2028 REPLACES DA FORM 2028 1 DEC 68 WHICH WILL BE USED USAPPC v1 00 DSN 867 7967 RECOMMENDED CHANGES TO PUBLICATIONS AND Use Part I reverse for Repair Parts and BLANK FORMS Special Tool Lists RPSTL and Supply Catalogs Supply Manuals SC SM For use of this form see AR 25 30 the pr
84. e a PANEL BRT Bright panel lights function unless main light switch is in OFF BO DRIVE or BO MARKER positions PANEL DIM Same as PANEL BRT position but panel lights dimmer switch may dim lights PANEL OFF Panel lights do not function PARK When main light switch is in SER DRIVE position headlights are deactivated leaving all service marker tail lights functioning 0004 00 8 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 INSTRUMENT PANEL CONTINUED Parking Brake Control Yellow diamond shaped knob operates parking brake valve Pull out to apply and push in to release parking brake Trailer Air Supply Red octagonal shaped knob supplies air to trailer air Control reservoirs Push in to charge trailer air supply and release trailer spring brakes Pull out to shut off air supply and apply trailer spring brakes 0004 00 9 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 INSTRUMENT PANEL CONTINUED 3 Lower Control Panel 21 22 23 24 PANEL LIGHTS STROBE 342 014 Ignition Switch Operates gages switches sending units instrument panel lights and engine start Turn key in switch clockwise to ON position Turn key counterclockwise to activate accessories Turn key to center vertical position to turn all systems OFF Engine Start Button P
85. e hook 6 Push lock 5 down ensuring latch 4 engages and install cotter pin 3 Connect intervehicular electric cable from receptacle 1 on rear of vehicle to trailer Connect air hoses from trailer to quick disconnect couplings 2 at rear of vehicle Connect safety chains 0005 00 15 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 PINTLE TOWING PROCEDURES CONTINUED 342 064 WARNING Failure to completely turn ON or OFF air cutoff valve will cause loss of brakes on trailer or truck 8 Push in trailer air supply knob on instrument panel 9 Remove wheel blocks from trailer MUD FLAP STOWAGE CAUTION If towing M872 semitrailer rear mud flaps must be removed and stowed in brackets Failure to follow this caution may result in equipment damage Remove lock pin 1 Pull up on mud flap 2 and remove Tap spring upward with hammer as required Place mud flap 2 in stowage bracket 3 and insert lock pin 1 Bee cL When towing operations are complete remove lock pin 1 and mud flap 2 from stow age bracket 3 5 Position mud flap 2 on vehicle and install lock pin 1 0005 00 16 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 MUD FLAP STOWAGE CONTINUED 342 033 OPERATE AIR CONDITIONER 1 If cab is hot inside open windows and allow hot air to vent 24 Move mode control lever 2 to VENT and turn fan switch 1 to OFF position
86. e repeated twice per second This indicator illuminates when an object is detected within a 3 second interval of vehicle opening or closing 1 to 2 seconds following interval with vehicle opening and no tone and 1 to 2 seconds following interval with vehicle closing accompanied by a tone This indicator illuminates when an object is detected within the system s maximum range Maximum range is 350 feet on straight roads and is reduced on curved roads by the road turn radius It also illuminates when the proximity alarm threshold is crossed Lights when a problem has been detected in the forward looking radar system A pattern of flashes blink out the faults that are stored in memory when activated by holding in the volume control knob for five seconds 0004 00 22 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 COLLISION WARNING SYSTEM CWS CONTINUED Table 1 Miscellaneous Tones Fail One Low Tone Sounded when the system diagnostics detect a failure One Tone Each time the volume control is turned a single tone is sounded 0004 00 23 9 2320 302 10 DESCRIPTION AND USE OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 COLLISION WARNING SYSTEM CWS CONTINUED 2 Side Sensor Display 10 Red Vehicle Indicator light that illuminates after objects have been Detected detected by the side sensor When the right turn signal is activated an
87. ear Suspension System LIST OF ABBREVIATIONS NOTE Refer to MIL STD 12D for standard abbreviations ABBREVIATION DEFINITION IQ D UP RISE RE NU EAE UNUS Additional Authorization List ABS cce an nn OR redes she inet iode NN SE DT AS As Anti Lock Brake System BIN Mess ea em ecce EN Basic Issue Items Ce le na en ee Centigrade or Celsius CTI anne an ansehe at Cubic Inch Displacement CH ee e Ne Centimeter COELI 4 hn eR RERO S RS EU ede ERR N Components of End Item Es Collision Warning System ECU sdb ez E RE ERES Electronic Control Unit AU ENCUENTRA VN E ERE ERO ARMEN VES SU T Fahrenheit GOW Renee tg dr ia Gross Combination Weight Rating GVWR ai en ae Gross Vehicle Weight Rating I co cae aed ti ase NN Kilogram 0001 00 2 9 2320 302 10 GENERAL INFORMATION CONTINUED 0001 00 LIST OF ABBREVIATIONS CONTINUED ABBREVIATION DEFINITION KM ue ipe NN Kilometer ek eae NUDO ih ROO ERUNT Ead aus s Kilopascal RR REA RD EATON NAAR S Kilometers per Hour dave b Pe DURER eMe eR ib geht deep Kilowatt Mt AS AA A A D EE EVER bed PEERS Liter Ds it a ER tue RAS SE Das Pound Dt ca LE En TO Pound foot REO Bere ee Liters per Hour MU DEDE Meter WM ares Millimeter PM ES iare la HS ot tones Preventive Maintenance Checks and Services PMA E Pounds per Square Inch eb b AE Revolutions per Minute SINC
88. eat Seat Cushion Tilt Rotate knob to increase or decrease seat tilt Adjustment Knob Fore and Aft Seat Three position lever moves seat forward or Adjustment Lever backward Right position locks seat in place Moving lever all the way left adjusts seat Traveling position is center position which provides a shock absorbing effect 0004 00 26 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 SEAT CONTROLS CONTINUED Seat Belt Three point belt locks into tether belt Tether Belt Adjustable belt located on both sides of seat 0004 00 27 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 ADDITIONAL CONTROLS AND INDICATORS 342 025 Cab Vent Window Push button and raisehandle to unlock window Push Handle out on handle to open window Pull handle in to close window Lower handle to lock window Air Horn Cable Pull cable to activate air horn Release cable to deactivate air horn Door Opening Handle Pull handle to open cab door 0004 00 28 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 ADDITIONAL CONTROLS AND INDICATORS CONTINUED LB Na N 5 EL fre 342 025 Door Window Glass Turn driver side handle clockwise to lower window Regulator Handle and counterc
89. ed the required lubri cants and recommended intervals for lubrication by the operator crew Any special lubri cation instructions required for specific components are contained in the NOTES section of the chart The KEY and CHARTS A through C provide information needed to select the proper lubricant for various temperature ranges and uses and identify the interval Recommended intervals are based on normal conditions of operation temperature and humidity When operating under extreme conditions lubricants should always be changed more frequently When in doubt notify your supervisor SPECIFIC LUBRICATION INSTRUCTIONS 1 Keep all lubricants in a closed container and store in a clean dry place away from extreme heat Keep container covers clean and do not allow dust dirt or other foreign material to mix with lubricants Keep lubrication equipment clean and ready for use Maintain a record of lubrication performed and report any problems noted during lubrica tion Refer to DA Pam 738 750 for maintenance forms and procedures to record and report any findings Keep all external parts of equipment not requiring lubrication free of lubricants After lubrication wipe off excess lubricant to prevent accumulation of foreign matter Refer to FM 9 207 for lubrication instructions in cold weather 0016 00 1 9 2320 302 10 LUBRICATION CHART TRUCK TRACTOR LINE HAUL 52 000 GVWR 6 X 4 M915A3 NSN 2520 01 432 4847 This
90. eling to prevent static electricity Failure to follow this warn ing may result in injury to personnel or equipment damage e Auxiliary heater if equipped must be switched to OFF while refueling Fuel may ignite causing injury or death to personnel and damage to vehicle e Fuel tank cap may become hot during vehicle operation Use hand pro tection when removing fuel cap 0013 00 1 9 2320 302 10 TRUCK CLEANING AND REFUELING INSTRUCTIONS CONTINUED 0013 00 NOTE e Place portable fire extinguisher within reach prior to refueling e DO NOT overfill fuel tank e If fuel starts foaming from fuel tank stop IMMEDIATELY to avoid fuel spillage a Shut down engine b Ensure that auxiliary heater if equipped is switched to OFF c Wipe off dirt on and around fuel filler cap 1 d Remove filler cap 1 by rotating cap counterclockwise e Filltank 2 to holes approximately 3 in 7 6 cm in filler neck f Install filler cap 1 by rotating cap clockwise as far as it will go 342 111 0013 00 2 9 2320 302 10 WHEEL AND TIRE MAINTENANCE INSTRUCTIONS 0014 00 WHEEL AND TIRE MAINTENANCE 1 Remove pneumatic hose 1 with gage from BII storage box 342 065 2 Remove dummy coupling 2 Connect pneumatic hose 1 to emergency gladhand red 3 on left rear of vehicle 342 064 0014 00 1 9 2320 302 10 WHEEL AND TIRE MAINTENANCE INSTRUCTIONS CONTINUED 0014 00 WHEEL AND
91. essure Range nus eoe beet Airbrake Chambers SELVICE C Failsafe ABS Anti Lock Brake System TA DG cue sso ec RE aa Locations rose aa ed Ltd c Duo re Wheels Ply Rating comicios Load Range nike got REDE UN ETE UE SEA Inflation Pressure Maximum Load Steering Manufacturer t Steering Gear o ACTUA eur Ree ee get ERA Power Steering Pump Turning Diameter Steering Column and Wheel AY PO s eda ee ner EORR Tilt Range ee E a Telescoping Suspension 0002 00 8 0002 00 air mechanical 60 120 psi 414 827 kPa 2 on front axle 4 on forward rear and rear rear axles 4 channel front axle and rear rear axle 22 5 x 8 25 in 10 1 125 in tubeless radial on highway 11R22 5 14PR H 105 psi 724 kPa 100 psi 690 kPa 105 psi 724 kPa TRW single gear hydraulic power booster Eaton B165R 53 ft 9 in 16 4 m tilt telescoping 15 2 5 8 in 67 mm Single Leaf Spring w Shock Absorbers TufTrac w Shock Absorbers 9 2320 302 10 EQUIPMENT DESCRIPTION AND DATA CONTINUED EQUIPMENT DATA CONTINUED Towing Attachments Pintle Hook Manufacturer 2 0 cee ee e Mode Rc UR RU Rated Capacity Towing Eyes Quantity er a are ec ges
92. f a corrosion problem is identified it can be reported using SF Form 368 Product Qual ity Deficiency Report Use of key words such as corrosion rust deterioration or cracking will ensure that the information is identified as a CPC problem The form should be submitted to the address specified in DA Pam 738 750 OZONE DEPLETING SUBSTANCES ODS Listing to be provided by requiring activity DESTRUCTION OF ARMY MATERIEL TO PREVENT ENEMY USE For destruction of Army materiel to prevent enemy use refer to TM 750 244 6 0001 00 1 9 2320 302 10 GENERAL INFORMATION CONTINUED 0001 00 PREPARATION FOR STORAGE OR SHIPMENT For preparation for storage or shipment procedures refer to TM 9 2320 302 20 WARRANTY INFORMATION The vehicle is warranted by Freightliner Corporation in accordance with TB 9 2320 302 15 Warranty starts on the date found in block 23 DA Form 2408 9 in the logbook Report all defects in material or workmanship to your supervisor who will take appropriate action NOMENCLATURE CROSS REFERENCE LIST COMMON NAME OFFICIAL NOMENCLATURE Cold Start System un pte Ether Quick Start System Engine Coolant ease A Antifreeze Ethylene Glycol Mixture Gladhand e lo Soe onstage ace pA Reps na hahaa Pr ace Quick Disconnect Coupling Jake Brakes SERE EG ENG FERAE BS edis Engine Brake Komfort EocQ et ehe Rn ture Seat Belt Adjustment UCLA ote e aou in ete rn R
93. faults listed in this column the equipment is not mission capable Follow standard operating procedures for maintaining the equip ment or reporting equipment failure 0011 00 1 9 2320 302 10 PREVENTIVE MAINTENANCE CHECKS AND SERVICES PMCS INTRODUCTION CONTINUED 0011 00 GENERAL PMCS PROCEDURES 1 Always perform PMCS in the same order so it gets to be a habit Once you ve had some practice you ll spot anything wrong in a hurry If the truck does not perform as required refer to the appropriate troubleshooting procedure in Chapter 3 2 If anything looks wrong and you can t fix it write it on your DA Form 2404 If you find something seriously wrong IMMEDIATELY report it to your supervisor 3 Before performing preventive maintenance read all the checks required for the applica ble interval and prepare all the tools you need to make all the checks You ll always need a rag Item 16 WP 0020 00 00 or two a Keep It Clean Dirt grease oil and debris get in the way and may cover up a seri ous problem Clean as you work and as needed Use detergent Item 4 WP 0020 00 00 and water when you clean metal rubber plastic and painted surfaces Rust and Corrosion Check metal parts for rust and corrosion If any bare metal or corrosion exists clean and apply a light coat of lubricating oil Item 14 WP 0020 00 Report it to your supervisor Bolts Nuts and Screws Check bolts nuts and screws for obvi
94. gine will cause crankcase dilution formation of lacquer or gummy deposits on valves pistons and rings and rapid accumulation of engine sludge 9 Avoid unnecessary engine idling 0005 00 9 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 DRIVING CONTINUED NOTE e If during operation low air pressure warning light comes on stop vehi cle shut down engine and investigate cause e tractor or trailer ABS light comes on while driving vehicle braking system is still operational Continue to operate vehicle in a safe manner Notify Unit Maintenance when mission is complete 10 Check gages and indicators frequently 11 Operate engine brakes as required 12 Operate inter axle lockout as required 13 Stop vehicle by applying long even pressure to service brakes Do not pump brakes 14 After vehicle is at a complete stop place transmission in N Neutral and pull parking brake control knob OUT Ensure parking brake light comes on WARNING If vehicle is left with engine running vehicle can move suddenly causing serious injury or death to personnel or damage to equipment 15 If you must leave vehicle with engine running DO NOT leave vehicle without doing the following a Ensure transmission is in N Neutral b Apply truck parking brake and semitrailer brakes Chock wheels and take any other steps to keep vehicle from moving SHUT DOWN ENGINE CAUTION Improper engine shutdown c
95. has verified proper fluid level Transmission damage can result from extended operation at improper fluid level conditions COLD OIL CHECK COLD RUN BAND Run engine for one minute at idle speed Idle engine in N Neutral until transmission reaches 60 120 F 16 49 C Shift trans mission to D Drive to R Reverse and return to N Neutral Remove dipstick from oil filler tube wipe clean and check oil level Oil registering in the COLD RUN band indicates a sufficient quantity of oil to safely operate transmission until temperature reaches 160 200 F 71 93 C If fluid level is not within COLD RUN band add or drain fluid to bring level within the band When temperature reaches 160 200 F 71 93 C a hot oil check MUST be performed 0016 00 11 9 2320 302 10 TRANSMISSION Continued HOT OIL CHECK HOT RUN BAND Be sure temperature has reached 160 200 F 71 93 C With truck on level ground engine idling and transmission in N Neutral remove dipstick from oil filler tube wipe clean and check oil level If oil registers in the HOT RUN band quantity of oil in transmission is safe for operating vehicle If fluid level registers on or below the bottom line of the HOT RUN band add required amount of oil to bring oil level to the middle of the HOT RUN band OIL CAN POINTS On condition or weekly lubricate sparingly with OE HDO door hinges and latches View G driver and passenger seat adjusters and sliding track
96. hat vehicle for any special slave starting proce dures 0006 00 1 0006 00 9 2320 302 10 OPERATION UNDER UNUSUAL CONDITIONS CONTINUED 0006 00 SLAVE START TRUCK CONTINUED 1 Connect NATO slave cable to receptacle 1 on dead vehicle 2 Connect other end of NATO slave cable to receptacle on live vehicle 3 Place master battery switch to ON 4 Start engine of live vehicle and run at 1000 rpm until voltmeter of dead vehicle is in green band Stop engine and remove NATO slave cable from receptacle CAUTION Ensure voltmeter of dead vehicle is in GREEN band before pushing starter button 5 Start engine of dead velticle WP 0005 00 If engine will not start notify Unit Mainte nance 342 039 TOW TRUCK 1 General a Notify Unit Maintenance to send recovery vehicle and tools required to disconnect propeller shafts b Refer to FM 21 305 for general guidelines on vehicle recovery and use of warning kits and signals Refer to FM 21 305 and FM 20 22 for additional information CAUTION Propeller shafts must be disconnected and inter axle lockout control valve lever must be in UNLOCK position before towing truck with all wheels on the ground Failure to follow this caution may result in transmission damage c When towing truck with front axle and rear tandem on ground ensure that inter axle lockout control valve lever is in UNLOCK position Ensure that universal join
97. heel 4 Ensure that semitrailer is picked up with fifth wheel ramps If kingpin comes in too high it will not engage in fifth wheel correctly Adjust semitrailer if needed NOTE One 12 volt light cable and one 24 volt light cable are stored in tool box 5 Remove air hoses 1 from storage bracket 2 and electrical cables from tool box 342 2001 0005 00 12 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 OPERATE SLIDING FIFTH WHEEL COUPLE TO SEMITRAILER CONTINUED 6 Connect air hoses and light cables Push semitrailer air supply control knob 3 IN open semitrailer supply valve and set semitrailer control valve hand brake 7 If semitrailer is ABS equipped connect ABS electrical cable CAUTION Backing SLOWLY helps to prevent hitting too hard in coupling and damag ing kingpin 8 Back up slowly until fifth wheel locks firmly to kingpin 9 Check kingpin connection and fifth wheel slide locks by pulling tractor gently forward against locked semitrailer brakes or blocked wheels As resistance is felt select transmis sion shift selector R Reverse pushbutton and gently back tractor to verify fifth wheel slide locks in both directions When resistance is felt select transmission shift selector N Neutral pushbutton and set parking brake 10 Place fifth wheel slide control lever 4 to UNLOCKED position to release two slide locking plungers 5 11 Drive tractor backward to position
98. heels WARNING DO NOT use trailer handbrake as primary brake to keep tension on coupling system This will cause undue tension on brakes and coupling which could result in injury to personnel or damage to equipment Prevent problems with slack in fifth wheel by using good braking habits and adjusting coupling and braking systems properly 2 Ensure that fifth wheel ramps are level with or are slightly below the angle of the pickup ramps WARNING Use caution when coupling to semitrailer BE ALERT for personnel in area Ensure that hands arms and body are clear of potential pinch points Failure to follow this warning may result in injury to personnel CAUTION Be careful not to run kingpin up fifth wheel ramps as this can damage kingpin and or fifth wheel 0005 00 11 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 OPERATE SLIDING FIFTH WHEEL COUPLE TO SEMITRAILER CONTINUED NOTE Truck and semitrailer must be aligned e Use a ground guide if one is available 342 032 PROPER ALIGNMENT WITH SEMITRAILER CAUTION Fifth wheel lube plates and trailer kingpin plate must be clean and free of lubricant prior to coupling Failure to follow this caution could damage fifth wheel lube plates and or trailer 3 Slowly back tractor under semitrailer kingpin plate Stop when kingpin plate is touching guide ramps Semitrailer kingpin should be centered as closely as possible in throat of fifth w
99. ht comes on for approximately five seconds when ignition switch is turned on Light stays on when problems such as low oil pressure low coolant or overheating occur in engine making it unsafe for further operation 0004 00 15 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 INSTRUMENT PANEL CONTINUED 45 46 47 48 49 50 9 9 65 5 5 6 amp 9 0 69 CO CO Q FASTEN SEAT BELT High Beam Indicator Green light comes on when high beam headlights are Light on Mirror Heater MIR Amber light comes on when mirror heater defroster HT Indicator Light is turned ON AXLE LOCK Light Amber light comes on when inter axle differential lockout all wheel drive control valve lever is set to LOCK ENGAGE position Utility UTLY Light Amber light comes on when utility lights are turned ON Strobe Light STR LT Strobe light comes on when strobe light switch is turned ON Low Air Pressure Red light comes on and warning buzzer sounds when Warning Light air pressure in either section of dual system falls below 65 psi 448 kPa When operating in blackout mode only warning buzzer will sound 0004 00 16 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 INSTRUMENT PANEL CONTINUED 6 Indicator and Warning Lamps u 53 CAEN MPH 342 017 Parking Brake Red light comes o
100. hts Move turn signal lever forward or rearward to deactivate hazard lights 0004 00 18 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 CAB FLOOR MOUNTED CONTROLS IN j 342 019 Accelerator Pedal Depress to increase engine speed Release to decrease engine speed Brake Pedal Depress to apply service brakes on truck and if properly coupled to a trailer trailer service brakes Release to release service brakes 0004 00 19 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 CAB FLOOR MOUNTED CONTROLS CONTINUED 342 020 Transmission Shifts automatic transmission Range select Pushbutton Shift positions are R Reverse N Neutral and D Drive Selector In D selection of a specific gear can be accomplished by pressing up or down arrow buttons shifting can also be done automatically MODE buttonand arrows are for selection of 6th gear and Unit Maintenance functions 0004 00 20 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 COLLISION WARNING SYSTEM CWS 1 Driver s Display Unit Green Power On Volume Control and Power On Off Speaker 342 021 Illuminates after power is applied to the system and the power on LED test is complete When pushed in until a distinctive click is heard and or felt turns the power ON or
101. icantly improved handling and braking during emergency stops 2 operation in temperatures from 25 F 32 C to 125 52 C and to 40 40 C with arctic kit installed 3 start and climb capability of a 20 percent grade at GCWR in both forward and reverse directions 4 fording capability up to 20 in 51 cm deep for 5 minutes without damage or requiring maintenance before operations can continue 5 two passenger aluminum corrosion proof cab with a 90 degree tilt forward hood for service accessibility 6 six cylinder 12 7 liter 430 horsepower in line turbocharged diesel engine built by Detroit Diesel 7 Allison HD 4560P six speed automatic transmission 0002 00 1 9 2320 302 10 EQUIPMENT DESCRIPTION AND DATA CONTINUED 0002 00 EQUIPMENT CHARACTERISTICS CAPABILITIES AND FEATURES CONTINUED 8 Collision Warning System CWS that warns the driver of potentially dan gerous driving situations by activating visual and audible alerts e When operating in arctic conditions the M915A3 can be equipped with an arctic heater mounted under the cab above the battery box This provides heat for the cab and engine cooling system The arctic heater may be operated prior to starting the engine to provide preheating of engine block LOCATION AND DESCRIPTION OF MAJOR COMPONENTS 342 001 0002 00 2 EQUIPMENT DESCRIPTION AND DATA CONTINUED Marker Clearance Lights Side Mirrors Heated
102. ice Procedure Capable If b Check truck for obvious dam b Damage that would age that would impair opera impair operation is tion evident c Check tires for defects underin c Tire is missing flation or loose or missing deflated unservice wheel studs or lug nuts able or two or more wheel studs or lug nuts are missing Cab Check for damage to lights 10 Damage that would Exterior side mirror 12 cab door 9 interfere with visibility grabhandles 5 steps 13 and and impair operation is collision warning system CWS evident side sensor 14 342 002 INTERIOR Before Instrument NOTE panel Refer tq WP 0004 00 the location of all gages switches and indicator lights Check for damage to gages Any gage is broken or switches and indicator and warn unreadable ing lights 0012 00 3 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Location Item To Item Check Not Fully Mission No Interval Service Procedure Capable If Fire Extin Check for missing or damaged a Fire extinguisher is guisher fire extinguisher 15 missing or damaged b Check gage 16 for proper b Pressure gage nee pressure of approximately 150 dle is in recharge psi 1034 kPa area c Check for damaged or missing c Seal is broken or seal 17 missing 342 051 17 0012 00 4 9 2320 302 10 Table 1 Preventive Mainten
103. ight glass remove plug and add until level is even with plug opening WP 0016 00 342 053 0012 00 10 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Item To Item Check Not Fully Mission No Interval Service Procedure Capable If 25 Power With fluid at operating tempera Steering ture and engine running remove Reservoir dipstick 27 and check level of power steering fluid in reservoir 28 Add fluid as required if level is below add mark WP 0016 00 342 054 0012 00 11 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Location Item To Item Check Not Fully Mission No Interval Service Procedure Capable If WARNING DO NOT perform fuel system checks inspections or maintenance while smoking or near fire flames or sparks Fuel may ignite causing injury or death to personnel and damage to vehicle NOTE Both primary fuel filter mounted on engine and fuel filter water separator mounted on left frame rail should be drained Ensure that a suitable container is used to catch fluid Turn drain knob 30 counter clockwise and drain all water from fuel filters 29 Turn knob clockwise to close 342 2002 0012 00 12 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Location Item To Item Check Not Ful
104. igned to deliver the right amount of air to all wheels to stop vehicle without jackknifing Failure to follow this warning may result in death or injury to personnel or damage to equipment DO NOT use trailer handbrake as primary brake to keep tension on coupling system This will cause undue tension on brakes and coupling which could result in injury to personnel or damage to equipment Prevent problems with slack in fifth wheel by using good braking habits and adjusting coupling and braking systems properly When caging brakes block wheels to keep truck from moving when brakes are released Failure to follow this warning may result in death or injury to personnel or damage to equipment DO NOT use engine brake if road surfaces are slippery Use of engine brake on wet icy or snow covered roads could result in loss of vehicle control Failure to follow this warning could result in death or injury to personnel or damage to equipment Brake chamber contains spring under great pressure To prevent personnel injury never work directly behind chamber If caging bolt will not engage properly spring may be broken DO NOT remove clamp ring around spring brake chamber It is under tension and can cause personnel injury if released When spring brakes are applied vehicle will stop quickly which could result in injury to personnel Also vehicle cannot be driven again until malfunction is repaired and enough air supply is present for operation of se
105. in position WARNING Hydraulic jack is intended only for lifting truck not for supporting vehicle to perform maintenance DO NOT get under truck after it is raised unless it is properly supported with blocks or jackstands Failure to observe this warning may result in death or injury to personnel f Raisejack until tire s clears ground g Remove top and bottom wheel lug nuts VA WARNING Use caution when lifting or handling wheel and tire assembly It is heavy and could cause injury if improperly lifted or if it falls on you CAUTION Wheel center hole and hub pilot have close tolerances If wheel is not kept square to hub it could bind during removal and damage stud threads or pilot pads Keep wheel square to hub during removal h Remove wheel and tire assembly using care not to allow assembly to drop on or drag across stud threads 3 Install Wheel and Tire Assembly a Inflate spare tire to proper pressure b Clean hub and wheel mounting surfaces on all disc faces of dual wheels 0014 00 5 9 2320 302 10 WHEEL AND TIRE MAINTENANCE INSTRUCTIONS CONTINUED 0014 00 WHEEL AND TIRE ASSEMBLY REPLACEMENT CONTINUED e f g N WARNING Use caution when lifting or handling wheel and tire assembly It is heavy and could cause injury 1f improperly lifted or if it falls on you CAUTION Wheel center hole and hub pilot have close tolerances If wheel is not kept square to hub
106. inable 1 To select a specific forward gear press the up or down arrow pushbuttons NOTE Even when a lower gear is selected transmission may not downshift until vehicle speed is reduced 2 The digital display shows the selected gear 3 The greater the need for engine power or engine braking power the lower the gear selection should be 4 Use 2nd or 3rd gears when road load or traffic conditions make it prefera ble to use lower gears 5 Ist gear is the low gear used for pulling through mud snow or going up steep grades This position also offers maximum engine braking power 6 When conditions improve return vehicle to D Drive 0005 00 5 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 OPERATE TRANSMISSION CONTINUED 2 Operation a Depress brake pedal and hold b Release parking brake Release trailer brakes if towing d Press transmission shift selector pushbutton to desired range e Release brake pedal and begin to move vehicle f Asrequired select a specific forward gear using up or down arrow pushbuttons 342 020 DRIVING TIPS WARNING BE ALERT for personnel in area while operating truck Always check to ensure area is clear of personnel and obstructions before moving out Failure to follow this warning may result in serious injury or death to personnel CAUTION Governed speed is 2100 rpm If engine is allowed to exceed governed speed
107. ing depth is 20 in 50 8 cm b Fordto maximum depth for short periods and short distances only Vehicles can ford to maximum depth for five minutes without requiring maintenance to continue operation 0006 00 9 9 2320 302 10 OPERATION UNDER UNUSUAL CONDITIONS CONTINUED 0006 00 FORDING CONTINUED 2 Before Fording a Check bottom surface of water to ensure it is hard enough to be forded without exceeding maximum fording depth b Ensure that engine is operating properly c Lubricate unpainted surfaces to guard against rust and deterioration d Place inter axle lockout control valve lever in LOCK position During Fording a Place transmission in a low gear and enter water slowly b Ford at speeds of 3 4 mph 5 6 kph After Fording a When vehicle emerges from water apply brakes a few times to dry brake linings Ensure that brakes are working properly before driving at normal speeds b Place inter axle lockout control valve lever in UNLOCK position c A Allow engine to run for awhile to drive out any accumulated water d Drainor dry any area where water has accumulated e Check all fluids for signs of contamination and for proper levels WP 0016 00 f If vehicle has been operated in salt water rinse undercarriage immediately Allow exterior to dry and check for evidence of salt accumulation Use a clean damp cloth to immediately remove all salt accumulation g Notify Unit Maintenance that
108. inguisher notify Unit Maintenance 342 034 0005 00 18 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 OPERATE LIGHTS NOTE If engine is not running ignition switch must be in ON position for lights to operate 1 Operate Strobe Light a Turnignition on and main light switch to STOP LIGHT b Move strobe light switch up to turn on strobe light 1 STR LT indicator 2 should come on c Move strobe light switch down STR LT indicator 2 should go off d Place ignition key in OFF position eQeooodeo0 0Ooooe00oe Q FASTEN SEAT BELT 342 035 2 Operate Work Lights a Connect work light plug into receptacle 3 on either side of cab or dash b Place ignition key in ON position and main light switch in STOP LIGHT or SER DRIVE position c Position ignition key in OFF position and disconnect work light plug from recepta cle 3 0005 00 19 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 OPERATE LIGHTS CONTINUED 3 Operate Utility Lights a Place ignition key in ON position and main light switch in STOP LIGHT or SER DRIVE position b Move utility light switch up to turn utility lights 4 on UTLY light indicator 5 should come on c Move utility light switch down UTLY light indicator 5 should go off d Place ignition key in OFF position 17 NE eQeocoodeoeooooeoe Q FASTEN SEAT BELT 342 035 0005 00 20
109. intenance GREEN BAND 13 15 volts indicates normal operating range RED BAND Above 15 volts indicates batteries 4 Voltmeter Indicates rate of battery charge or discharge in volts a are being overcharged Notify Unit Maintenance 0004 00 3 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 INSTRUMENT PANEL CONTINUED b Center Gage Panel 342 012 Tachometer Registers engine speed in rpm Maximum governed speed is 2100 rpm Idle speed is 600 rpm Speedometer Registers vehicle ground speed in mph kph Odometer speedometer and distance traveled seven digit odometer in miles 0004 00 4 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 INSTRUMENT PANEL CONTINUED c Right Gage Panel 342 012 Primary Air Pressure Registers air pressure in psi in rear brake system Gage Normal operating range is 90 120 psi 621 827 kPa Air Cleaner Indicates air cleaner air flow is adequate if gage is Restriction Indicator clear If restricted indicator window will show up to Gage 20 inches of water Push yellow reset button to reset after air cleaner has been serviced Secondary Air Registers air pressure in psi in front brake system Pressure Gage Normal operating range is 90 120 psi 621 827 kPa Transmission Oil Indicates oil temperature in transmission Normal
110. ion Gage Indicates Fluid is fluid level Overheating During Normal Operation 2 Check transmission fluid dipstick for discoloration that would indicate water coolant in fluid WHEELS AND TIRES or 1 Check tires for proper pressure Check for bent wheel rims Tires Worn Excessively Unevenly Check for loose lug nuts and worn loose damaged suspension components Check tires for proper Side on Level Pavement pressure Check that tires are proper size and type Check for loose or damaged steering gear linkage 0010 00 7 If transmission fluid is low fill to correct level WP 0016 00 If transmission fluid is low fill to correct level WP 0016 00 If dipstick is discolored notify Unit Maintenance Inflate tires to proper pressure 0012 00 If rim is bent replace wheel and tire assembly WP 0014 00 Notify Unit Maintenance to apply proper torque Tighten loose lug nuts and notify Unit Maintenance to apply proper torque If suspension components are worn loose or damaged notify Unit Maintenance Inflate tires to proper pressure WP 0012 00 If one tire is mismatched and spare matches replace mismatched tire with spare If one or more tires are mismatched notify Unit Maintenance If steering gear linkage is loose or damaged notify Unit Maintenance 9 2320 302 10 Table 1 Troubleshooting Procedures Continued TEST OR
111. ious burns If battery corrosion or electrolyte makes contact with skin eyes or clothing take immediate action to stop the corrosive burning effects Failure to follow these procedures may result in death or serious injury to personnel a Eyes Flush with cold water for no less than 15 minutes and seek medical attention immediately b Skin Flush with large amounts of cold water until all acid is removed Seek medical attention as required c Internal If corrosion or electrolyte is ingested drink large amounts of water or milk Follow with milk of magnesia beaten egg or vegetable oil Seek medical attention immediately d Clothing Equipment Wash area with large amounts of cold water Neutralize acid with baking soda or household ammonia 1 Unfasten two latches 3 and slide battery box cover 2 outboard from battery box 4 25 Slide battery box cover 2 on battery box 4 with step 1 outboard Fasten two latches 3 0015 00 1 0015 00 2 Blank 9 2320 302 10 LUBRICATION INSTRUCTIONS 0016 00 GENERAL NOTE e These instructions are mandatory e This equipment is enrolled in the Army Oil Analysis Program AOAP Engine oil and transmission oil must be sampled every 90 days as pre scribed by DA Pam 738 750 The M915A3 must receive lubrication with approved lubricants at recommended inter vals in order to be mission ready at all times The Lubrication Chart shows lubrication points items to be lubricat
112. lightly and evenly DO NOT pump service brake pedal WARNING DO NOT use engine brake if road surfaces are slippery Using engine brake on wet icy or snow covered roads could result in loss of vehicle control Failure to follow this warning could result in death or injury to personnel or damage to equipment 3 Always avoid sudden braking and use of engine brake on slick roads CAUTION Care must be exercised if tractor or trailer ABS light comes on while driving possibly indicating an ABS malfunction Although the regular normal vehicle system is still fully operational continue in a safe manner and reduce speed to 40 mph 64 kph until mission is complete When mission is complete notify Unit Maintenance to clear ABS fault and restore full ABS capabilities 0006 00 12 9 2320 302 10 OPERATION UNDER UNUSUAL CONDITIONS CONTINUED 0006 00 OPERATE ON SNOW OR ICE CONTINUED a b eoo 4 During emergency or reduced traction stops press brake pedal fully until vehicle comes to a safe stop DO NOT PUMP brake pedal With brake pedal fully depressed ABS controls all wheels to provide steering control and a reduced braking distance If parking on icy slushy wet or muddy surfaces place boards brush or other materials that would provide traction underneath tires This guards against tires freezing to the ground or becoming pocketed in ice and provides some traction when vehicle is started and moving again Inst
113. lockwise to raise window Turn passenger side handle counterclockwise to lower window and clockwise to raise window Door Lock Button Push button down to lock door To unlock either pull door opening handle or unlock from outside with ignition key 0004 00 29 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 ADDITIONAL CONTROLS AND INDICATORS CONTINUED 342 026 Stroke Alert Indicator Bright orange band painted on service pushrod of all brake chambers When visible notify Unit Maintenance to perform stroke adjustment or major brake service 0004 00 30 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 ADDITIONAL CONTROLS AND INDICATORS CONTINUED 342 027 7 Hood Prop When installed prevents hood from accidentally closing 0004 00 31 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 ADDITIONAL CONTROLS AND INDICATORS CONTINUED 342 028 EM Interior Light Provides interior cab lighting 0004 00 32 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 ADDITIONAL CONTROLS AND INDICATORS CONTINUED EN 342 2000 Master Battery Switch Connects batteries to vehicle electrical system Push in for ON pull out for OFF 0004 00 33 0004 00 34 Blank 9 2320 302 10 OPERATI
114. lt in loss of braking power due to heat build up 3 If you experience a total loss of braking due to heat build up apply engine brake six cylinders upshift as engine speed approaches 2100 rpm and in D Drive position continue to apply engine brake and maintain directional control of vehicle CAUTION Care must be exercised if tractor or trailer ABS light comes on while driving possibly indicating an ABS malfunction Although the regular normal vehicle system is still fully operational you should continue in a safe manner and reduce speed to 40 mph 64 kph until the mission is complete When the mission is complete report to Unit Maintenance to clear the ABS fault and restore full ABS capabilities 4 The anti lock brake system ABS helps in controlling wheel lockup and tire skidding during an emergency 4 Engage Inter axle Lockout as Required CAUTION DO NOT actuate inter axle lockout control valve while tires are spinning DO NOT operate vehicle continuously with inter axle lockout control valve locked during extended good road conditions Damage to axle gearing and excessive tire wear could result a difficult stretch of road approaches stop and inspect it carefully before driving on it Select transmission gear range that best suits road condition and place inter axle lockout control valve lever in LOCK position b Tolock inter axle ease up on accelerator pedal momentarily and move inter axle lockout cont
115. lure unusual load shifts and obstructions 5 During transport secure vehicle by attaching cables to tiedown points OPERATE TILTABLE HOOD 1 Open Tiltable Hood a Unlock hood retaining strap 3 from hood locking bracket 4 b Repeat step 1 for opposite side c Grasp hand slot 1 at top front center of hood 2 and rotate hood to open position 0005 00 24 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 OPERATE TILTABLE HOOD CONTINUED e ae E HA Y pS 342 038 WARNING ALWAYS install hood prop after opening hood Failure to follow this warn ing could result in severe injury to personnel d side of radiator 5 remove hood prop rod 6 from bracket e Rotate hood prop rod 6 forward and install rod end in slot provided on hood bracket 7 0005 00 25 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 OPERATE TILTABLE HOOD CONTINUED 842 027 2 Close Tiltable Hood a Remove hood prop rod 6 end from hood bracket 7 b Rotate hood prop rod 6 rearward and secure in bracket on side of radiator 5 c Grasp hand hold 1 at top front center of hood 2 and lower hood to closed posi tion d Lock retaining strap 3 on hood locking bracket 4 e Repeat step d for opposite side 0005 00 26 OPERATION UNDER UNUSUAL CONDITIONS GENERAL TM 9 2320 302 10 WARNING This vehicle has been desig
116. ly Mission No Interval Service Procedure Capable If Intervehic Check for presence and general Electrical connector is ular Air condition of intervehicular air damaged Hoses and hoses 31 gladhands 32 glad Electrical hand preformed packings 33 Connectors and three electrical connectors 34 342 2023 0012 00 13 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Location Item To Item Check Not Fully Mission No Interval Service Procedure Capable If 28 After Fifth a Check fifth wheel lube plates One or both lube Wheel 36 for severe chips wear plates are loose cracks gouges or bends Check missing or damaged if 25 or more of lube plate coating is missing from one or both plates due to normal wear or damage b Check for operation and dam b Lock release levers age to lock release levers 39 do not operate slide locking plungers 38 Locking jaw mecha sliding rails 37 and fifth nism is cracked or wheel plate 35 worn 29 a Check under truck for evidence of fluid leakage such as oil coolant or fuel Overall View a Class III oil coolant or fuel leaks are evi dent b Check rear gladhands for dam age Ensure that gladhand vent holes are not plugged Ensure that dummy couplings are installed 0012 00 14 9 2320 302 10 Table 1 Preventive Maintenance Checks and
117. n when parking brake is activated Indicator Light Tractor ABS TRAC Red light comes on when ignition is turned ON Light ABS Indicator Light goes out after 4 second self test if ABS components are working Trailer ABS When trailer ABS electrical cable is connected red Indicator Light light comes on when ignition is turned ON Light goes out after 4 second self test if ABS components are working 0004 00 17 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 STEERING WHEEL AND COLUMN MOUNTED CONTROLS Turn Signal Lever Headlight Dimmer Switch Electric Horn Steering Wheel Trailer Brake Hand Control Valve Lever Steering Wheel Adjustment Control Lever Hazard Signal Switch 342 018 Move lever forward for right turn signal rearward for left turn signal and center for off Lift end of turn signal lever to turn on high beams Lift lever again to turn high beams off Push to activate Use instead of air horn in normal city driving Turn clockwise to turn vehicle right counterclockwise to turn vehicle left When pulled rearward activates trailer brakes Push down on lever to change tilt of steering column and wheel Release lever to lock tilt adjustment in position To adjust height of steering wheel pull up on lever Release lever to lock height adjustment in position Located under the turn signal Move switch out left to activate hazard lig
118. nd damage to air from applying trailer gladhands 40 trailer brakes when coupled Mud Flaps Check for presence and general Mud flaps are missing condition of mud flaps 43 Fuel Tank WARNING DO NOT smoke or permit any open flame in area of truck while servicing diesel fuel system Be sure hose nozzle is grounded against filler tube during refueling to prevent static electricity Fail ure to follow this warning may result in injury to personnel or equipment damage 0012 00 16 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Item To Item Check Not Fully Mission No Interval Service Procedure Capable If 35 After Fuel Tank Check for presence and condi a Filler cap is missing Con t tion of fuel filler cap 46 or damaged b Check fuel tank 45 for leaks b Class III fuel leaks damage and security of mount are evident c Remove fuel tank filler cap 46 and fill fuel tank 45 to holes approximately 3 in 7 6 cm in filler neck Ensure that filler cap is free of debris and other material that could inter fere with air venting Install filler cap 0012 00 17 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Location Item To Item Check Not Fully Mission No Interval Service Procedure Capable If 36 After Front Axle Check that lubri
119. ne above 600 rpm until normal oil pressure 15 psi 100 kPa is indi cated on engine oil pressure gage 8 Monitor gages and indicators If after ten seconds there is no indication of oil pressure shut down engine and perform troubleshooting OPERATE TRANSMISSION 1 Transmission Ranges a Reverse is used to back up the vehicle Vehicle must be brought to a complete stop before shifting from a forward range to R or vice versa Light on panel will illuminate and the digital display will display R when reverse is attained CAUTION DO NOT allow truck to coast in N Neutral This can result in severe trans mission damage When in N engine braking is not available 0005 00 4 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 OPERATE TRANSMISSION CONTINUED b N Neutral is the normal transmission position when vehicle is not in use Use N to start engine to check vehicle accessories and for extended periods of engine idling Light on panel will illuminate and the digital display will display N when transmis sion is in neutral Vehicle ECU automatically selects NEUTRAL when starting vehicle When placed in D Drive the transmission starts out in 1st gear and automatically progresses to the 5th gear Press mode button then D Drive to select 6th gear Dur ing slowdown transmission automatically downshifts Light on panel illuminates and the digital display shows the highest forward gear atta
120. ned to operate safely and efficiently within the limits specified in this TM Operation beyond these limits is prohibited in accordance with AR 70 1 without written approval from Commander U S Army Tank automotive and Armaments Command ATTN AMSTA DSA CS Warren MI 48397 5000 1 This work package contains instructions for safely operating the M915A3 under unusual conditions In addition to normal preventive maintenance special care must be taken to keep truck operational in extreme temperatures and other environmental conditions 2 Refer to FM 21 300 and FM 21 305 for additional information SLAVE START TRUCK WARNING When slave starting truck use NATO slave cable that DOES NOT have loose or missing insulation DO NOT proceed if suitable cable is not available DO NOT use civilian type jumper cables CAUTION DO NOT operate starter motor for more than 30 seconds at a time After 30 seconds allow starter motor to cool for at least two minutes before attempting to start engine again Excessive heating of starter motor may result in damage or early starter failure Under no circumstances can the truck be started by being towed or pushed Failure to follow this caution will cause damage to transmission NOTE Before slave starting ensure that checks have been made to determine whether problem is low or dead battery If vehicle other than another M915A3 is used to slave start truck refer to Operator s Manual for t
121. nt valve inoperative lever 22 and fore and aft seat adjustment lever 24 Check for proper operation of lumbar adjustment knob 20 seat back adjustment lever 21 and seat tilt knob 23 342 023 Before Steering Adjust tilt and height of steering Steering wheel does Wheel not lock into adjusted position Before Side Mir Adjust side mirrors as required rors 0012 00 6 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Item To Item Check Not Fully Mission No Interval Service Procedure Capable If 12 Before Instru CAUTION ment Panel At 1700 2100 rpm minimum engine oil pressure Gages and D et Indicator for safe operation is 15 psi 103 kPa If gage does not show at least 15 psi 103 kPa shut down and Warn ing Lights engine and notify supervisor All warning lights should go out in approximately 7 seconds Failure to follow this caution will damage engine a Check oil pressure gage Read a Gage reading is ing should be 15 50 psi 103 within limits 344 kPa at idle b Check primary and secondary b Gage reads less than air pressure gages for 90 120 65 psi 448 kPa psi 621 827 kPa green band yellow band warning buzzer stays on or gage is not operating c Check that voltmeter registers c Needle is in yellow within green band or red band d Check that fuel supply gage registers and indicates adequate
122. ntil it can be removed This is a pressurized cool ing system and escaping steam hot water or coolant will cause serious burns PRESSURIZED COOLING SYSTEM WARNING SINCGARS RADIO DO NOT make contact with any bare metal wire surface of active SINCGARS antenna elements Failure to follow this warning could result in radio frequency RF shock or burn 9 2320 302 10 WARNING SLAVE STARTING When slave starting truck use NATO slave cable that DOES NOT have loose or missing insulation DO NOT proceed if suitable cable is not available DO NOT use civilian type jumper cables WARNING TIRE CHANGING Whenever wheel lug nuts require tightening or a wheel has been removed and replaced lug nuts must be tightened to the required torque Failure to follow this warn ing may result in serious injury to personnel and damage to equipment WARNING TOWING Brakes will be released when air is applied to a disabled vehicle DO NOT connect air lines to a disabled vehicle without first blocking wheels and connecting tow bar between vehicles Failure to follow this warning could result in death or injury to per sonnel and damage to equipment 9 2320 302 10 WARNING TRUCK OPERATION BE ALERT for personnel in area while operating truck Always check to ensure area is clear of personnel and obstructions before moving out Failure to follow this warn ing may result in serious injury or death to personnel Use
123. o tire failure and loss of steering control Damage to equipment or injury to person nel may result a Check pressure in tires and adjust as required Empty 80 psi 552 kPa Loaded 100 psi 690 kPa b Ensure all wheel stud lug nuts b Two or more wheel are tight using wheel stud lug studs are missing or nut wrench and handle lug nuts are loose c Check wheel for cracks breaks c Wheel is cracked or bends broken or bent 0012 00 30 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Item To Item Check Not Fully Mission No Interval Service Procedure Capable If Weekly Front WARNING Wheel and Tire Operating truck with an underinflated or defective tire may lead to tire failure and loss of steering control Damage to equipment or injury to person nel may result a Check pressure in tires and adjust as required Empty 85 psi 586 kPa Loaded 105 psi 724 kPa b Ensure all wheel stud lug nuts b Two or more wheel are tight using wheel stud lug studs are missing or nut wrench and handle lug nuts are loose c Check wheel for cracks breaks Wheel is cracked or bends broken or bent on WARNING DO NOT touch hot exhaust pipe with bare hands Severe burns will result NOTE Operation of vehicle with damaged exhaust may violate AR 385 55 Exhaust Inspect exhaust stack and muffler Pipes clamps or hard System for dam
124. ock Number 9150 00 189 6730 9150 00 188 9860 9150 00 188 9862 7920 00 205 1711 9390 00 174 2322 4 Item Name Description CAGEC Part Number OIL Lubricating Internal Combustion Engine OE HDO 40 81349 MIL L 2104 Quart Can 5 Gallon Can 55 Gallon Drum RAG Wiping 64067 7920 00 205 1711 50 Pound Bale TAPE Reflective 2 Inches Wide 81346 ASTM D4956 1800 Inch Roll 0020 00 5 0020 00 6 Blank 9 2320 302 10 Subject Additional Authorization List AAL Air Conditioning System Theory of Operation Air System Theory of Operation Battery Box Cover Brake System Theory of Operation Characteristics Capabilities and Features Equipment irer u ei Bs Checks and Services PMCS Introduction Preventive Collision Warning System CWS Theory of Operation Components of End Item COEI and Basic Issue Items Lists llle Cooling System Theory of Operation Corrosion Prevention and Control CPC Data Equipment Description and Use of Operator s Controls Indicators Destruction of Army Materiel to Prevent Enemy Use Drive Train Theory of Operati0N Elec
125. oid eye injury eye protection is required when working around batteries DO NOT smoke use open flame make sparks or create other ignition sources around batteries If a battery is giving off gases it can explode and cause injury to personnel Remove all jewelry such as rings ID tags watches and bracelets If jewelry or a tool contacts a battery terminal a direct short will result in instant heating injury to per sonnel and damage to equipment Sulfuric acid contained in batteries can cause serious burns If battery corrosion or electrolyte makes contact with skin eyes or clothing take immediate action to stop the corrosive burning effects Failure to follow these procedures may result in death or serious injury to personnel a Eyes Flush with cold water for no less than 15 minutes and seek medical attention immediately b Skin Flush with large amounts of cold water until all acid is removed Seek medi cal attention as required c Internal If corrosion or electrolyte is ingested drink large amounts of water or milk Follow with milk of magnesia beaten egg or vegetable oil Seek medical attention immediately d Clothing Equipment Wash area with large amounts of cold water Neutralize acid with baking soda or household ammonia 9 2320 302 10 WARNING BRAKES DO NOT use trailer handbrake to prevent trailer from jackknifing because this may cause trailer to jackknife Modern airbrake systems are des
126. olant level in radiator 53 Coolant must be within 2 in 6 4 cm below filler neck Add coolant as required 342 059 41 After Horns NOTE Vehicle operation with inoperative horn may vio late AR 385 55 If tactical situation permits check operation of electrical and air horns 42 After Accessory Verify that windshield wipers and Items heater ventilator or air condi tioner operate 0012 00 22 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Item To Item Check Not Fully Mission No Interval Service Procedure Capable If 43 After NOTE Vehicle operation with damaged or inoperative headlights or stoplights may violate AR 385 55 a Check for presence and opera tion of service drive turn sig nal blackout marker blackout drive and marker clearance lights b Check operation of tail stop lights Depress brake pedal approximately 4 in 6 4 mm Tail stoplights should come on 44 After Front Axle Check for loose missing or dam Stops aged front axle stops 0012 00 23 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Item To Item Check Not Fully Mission No Interval Service Procedure Capable If 45 Weekly Drive Belts a Check for loose missing bro a Any drive belt is ken frayed or cracked drive loose missing bro belts 55 Notify supervisor if ken cracked to the
127. oponent agency is ODISC4 TO Forward to proponent of publication or form Include ZIP Code FROM Activity and location Include ZIP Code AMSTA LC CI TECH PUBS TACOM RI 1 Rock Island Arsenal Rock Island IL 61299 7630 PART ALL PUBLICATIONS EXCEPT RPSTL AND SC SM AND BLANK FORMS PUBLICATION FORM NUMBER DATE Truck Tractor Line Haul Operator s TM 9 2320 302 10 28 May 2001 Manual ITEM PAGE PARA LINE FIGURE TABLE RECOMMENDED CHANGES AND REASON NO Reference to line numbers within the paragraph or subparagraph TYPED NAME GRADE OR TITLE TELEPHONE EXCHANGE AUTOVON SIGNATURE PLUS EXTENSION DA n RM 2028 REPLACES DA FORM 2028 1 DEC 68 WHICH WILL BE USED USAPPC V1 00 RECOMMENDED CHANGES TO PUBLICATIONS AND Use Part I reverse for Repair Parts and BLANK FORMS Special Tool Lists RPSTL and Supply Catalogs Supply Manuals SC SM For use of this form see AR 25 30 the proponent agency is ODISC4 TO Forward to proponent of publication or form Include ZIP Code FROM Activity and location Include ZIP Code AMSTA LC CI TECH PUBS TACOM RI 1 Rock Island Arsenal Rock Island IL 61299 7630 PART ALL PUBLICATIONS EXCEPT RPSTL AND SC SM AND BLANK FORMS PUBLICATION FORM NUMBER DATE Truck Tractor Line Haul Operator s TM 9 2320 302 10 28 May 2001 Manual ITEM PAGE PARA LINE FIGURE TABLE RECOMMENDED CHANGES AND REASON NO Reference to line numbers within the paragraph
128. or Light if equipped Auxiliary Heater Operates arctic heater Positions are ON and OFF Control Switch When set to ON a green light integrated into switch if equipped is illuminated HI LO Switch Controls rate of heating for arctic heater If set at HI if equipped heater burner will go on when coolant temperature at inlet to heater is 167 F 75 LO is suitable for standby operation 0004 00 12 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 INSTRUMENT PANEL CONTINUED FRESH RECIRC Air Allows A C VENT and HEAT modes to be used with Button recirculated or fresh air When mode control lever is at HEAT DEF or DEF system draws in fresh air regardless of button setting When MAX A C is selected system draws recirculated air regardless of button setting Fan Switch Controls four speed fan Positions are OFF 1 2 3 and 4 Position 4 is maximum fan speed Mode Control Lever Allows selection of modes of operation Modes are MAX A C A C VENT HEAT HEAT DEF and DEF Lever must be set to HEAT for arctic heater to operate Temperature Control Allows selection of a full range of temperatures from Lever COOL to WARM 12V Utility Outlet Provides 12V power for connection of utility equipment such as a work light 0004 00 13 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 INSTRUMENT PANEL CONTINUED
129. or injury to personnel or damage to equipment Use engine as a braking force The vehicle is equipped with an engine braking sys tem that enables the engine to act as a brake The engine brake should be used for descending grades and is most effective between 1750 2100 rpm 1 If maximum engine braking is required move both engine brake selection switches up to engage six cylinders 2 If less than maximum engine braking is required move left engine brake selection switch up and right engine brake selection switch down to engage two cylinders or left engine brake selection switch down and right engine brake selection switch up to engage four cylinders When downhill braking 1 Select a gear that allows engine with engine brake applied to control vehi cle speed with engine rpm at or below 2100 rpm without applying service brakes As downgrade is approached progressively select a gear that when combined with engine brake allows you to maintain engine speed of 1750 2100 rpm 2 As engine speed exceeds 2100 rpm use one positive application of service brakes to slow engine speed to 1650 rpm release engine brake downshift one gear and apply engine brake Repeat this procedure until engine speed can be maintained at 1750 2100 rpm 0005 00 7 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 DRIVING TIPS CONTINUED CAUTION Excessive use of service brake to control downhill speed will resu
130. ouflage see aa Sa UE RC En ER A Sa Hl FM 5 20 Desert Operations c URDU UO CIE RUNE E IEEE FM 90 3 Driver Selection and Training Wheeled Vehicles FM 21 300 First Aid for Soldiers see EDU REEL ee FM 21 11 Manual for the Wheeled Vehicle FM 21 305 NBC Contamination Avoidance o ooococococ eee FM 3 3 Decontamination neu ep Ad HEN AS Se BO seh RUE FM 3 5 NBC Protection REESE na A eins bathe SERIE SET NA FM 3 4 Northern Operations hee 31 71 Operation and Maintenance of Ordnance Material in Extreme Cold Weather 0 to 65 F amp eee hrs 9 207 Vehicle Recovery 8 FM 20 22 0017 00 1 9 2320 302 10 REFERENCES CONTINUED 0017 00 TECHNICAL MANUALS Operator s Organizational Direct Support and General Support Maintenance Manual for Lead acid Storage Batteries TM 9 6140 200 14 Operator s Unit Direct Support and General Support Maintenance Manual for Care Maintenance Repair and Inspection of Pneumatic Tires and Inner Tubes TM 9 2620 200 14 Operator s Unit Direct Support and General Support Maintenance Manual Including Repair Parts and Special Tools List for Semitrailer Flatbed Breakbulk Container Transporter 34 Ton M872 M872A1 M872A2 M872A3
131. ould damage turbocharger 1 Run engine at idle for four to five minutes 2 Turn all accessories off and place engine brake system switches in OFF down position 3 Move ignition switch to OFF position Pause 10 seconds before placing master battery switch off 4 Perform After operation PMC WP 0012 00 5 Place master battery switch to OFF 0005 00 10 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 OPERATE SLIDING FIFTH WHEEL COUPLE TO SEMITRAILER CAUTION e The M915A3 is designed to be used with M871 M872 and M1062 semitrailers only Other semitrailers may cause equipment damage e Semitrailer must be blocked and semitrailer brakes locked to prevent damage to tractor or semitrailer by uncontrolled sliding of fifth wheel e If towing M872 semitrailer rear mud flaps must be removed and stowed in brackets provided Failure to do so will cause equipment damage e Tractor trucks have the capability to turn greater than 90 Care must be taken to avoid hitting semitrailer with tractor when turning more than 90 e Operator must use caution when cresting hills which cause the tractor truck to have a nose down angle greater than 4 with respect to towed semitrailer Damage to vehicle or loss of control could occur NOTE Start position for coupling is with fifth wheel jaws unlocked open fifth wheel in LOAD position and fifth wheel slide control lever in LOCKED position 1 Block trailer w
132. ous looseness missing bent or broken condition You can t try them all with a tool but look for chipped paint bare metal or rust around bolt heads If you find one you think is loose tighten it Welds Look for loose or chipped paint rust or gaps where parts are welded together If you find a bad weld report it to your supervisor Electric Wires and Connectors Look for cracked or broken insulation bare wires and loose or broken connectors Tighten loose connectors and ensure that the wires are in good condition Hoses and Fluid Lines Look for wear damage and signs of leaks Ensure that clamps and fittings are tight Wet spots indicate leaks but a stain around a fitting or connector can also mean a leak If a leak comes from a loose fitting or connector tighten it If something is broken or worn out report it to your supervisor Fluid Leakage It is necessary for you to know how fluid leakage affects the status of your M915A3 Tractor Truck Following are types classes of leakage you need to know to be able to determine the status of your truck Learn these leakage defini tions and remember when in doubt notify your supervisor 0011 00 2 9 2320 302 10 PREVENTIVE MAINTENANCE CHECKS AND SERVICES PMCS INTRODUCTION CONTINUED 0011 00 GENERAL PMCS PROCEDURES CONTINUED CAUTION e Equipment operation is allowed with minor leakages Class I or Con sideration must be given to fluid capacity in the item sys
133. plates Damage will occur if trailer edge drags across fifth wheel lube plates 6 Place float pads under semitrailer landing gear and lower landing gear 7 Set semitrailer hand brake control valve and close semitrailer air supply valve CAUTION To prevent damage to air hoses and electrical cables between trailer cou plings ensure air hose and cable ends are placed in storage bracket 8 Disconnect and stow semitrailer air supply lines and intervehicular cable 9 If connected disconnect and stow ABS electrical cable 10 Place fifth wheel slide control lever 2 to UNLOCKED position 11 Drive tractor forward to position fifth wheel from HAUL to LOAD position 12 Place fifth wheel slide control lever 2 to LOCKED position Ensure slide locking plungers 3 engage 0005 00 14 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 OPERATE SLIDING FIFTH WHEEL UNCOUPLE FROM SEMITRAILER CONTINUED 13 Pull secondary lock release handle 5 out and lift to engage catch 14 Pull primary lock release handle 4 out 15 Release parking brake and slowly pull forward until semitrailer clears fifth wheel 16 Stop and set parking brake 342 2011 PINTLE TOWING PROCEDURES SL OY Em Gc ne Block trailer wheels Remove cotter pin 3 engage latch 4 and lift lock 5 to open position Connect trailer to pintl
134. ponents are not damaged troubleshoot semitrailer DRIVELINE LOCKING SYSTEM Driveline Will Not Disengage When Inter axle Lockout Control ValveLever is Moved to UNLOCK Position Ensure system has had enough time to disengage Excessive driveline windup may have occurred Back truck up slowly If driveline does not disengage notify Unit Mainten ance ELECTRICAL SYSTEM One or More Lighting Systems Not 1 Check position Working of switch es If vehicle is coupled to semitrailer and problem is with semitrailer lighting system check intervehicular cable connection Perform semitrailer troubleshooting 0010 00 3 Connect air hoses If leaks are found notify Unit Maintenance Leave lockout control valve lever in UNLOCKED position and wait for light to go off Place switch es in ON position and blackout light switch to NORMAL position Connect intervehicular cable 9 2320 302 10 Table 1 Troubleshooting Procedures Continued TEST OR CORRECTIVE MALFUNCTION INSPECTION ACTION ENGINE 1 Engine Coolant Temperature Gage Indicates Engine is Overheating WARNING DO NOT remove radiator cap unless engine is cold Remove cap in two steps First place a thick cloth over cap and slowly turn cap left to first stop Pause and allow pressure to escape Turn cap further left until it can be removed This is a pressurized cooling system and escaping steam hot water or coolant
135. r to subparagraphs 2 and 3 for operation of arctic heater d When starting out 1 Be careful when you first start your vehicle Use cold weather starting pro cedure and allow engine time to reach operating temperature range of 120 140 F 48 59 C Be alert that tires may be frozen to ground 0006 00 5 9 2320 302 10 OPERATION UNDER UNUSUAL CONDITIONS CONTINUED 0006 00 OPERATE IN EXTREME COLD CONTINUED 2 Start driving very slowly for about 100 yards 91 4 m Be alert for signs that tires may have flat spots or that one or more brake shoes may be frozen and require preheating Notify Unit Maintenance as required e Parking 1 2 3 4 5 6 If vehicle will be parked for a short period park in a sheltered area out of wind If shelter is not available park vehicle so it does not face into the wind If vehicle will be parked for a long shutdown period try to park on high ground and use planks or brush to make a raised and relatively dry surface Keep tires out of snow water ice and mud if possible Clean snow ice and mud from vehicle as soon as possible after shutdown If vehicle will be parked for a long period of time have Unit Maintenance remove and store batteries Fill fuel tank to guard against condensation and drain any accumulated water from air reservoirs and fuel filters Ensure tires are properly inflated Have Unit Maintenance check and service cooling system to ensu
136. re truck is adequately protected against extreme cold Ensure transmission is in NEU TRAL N position and vehicle tires are blocked Operate Arctic Heater to Preheat Engine if equipped NOTE e Arctic heater is used to provide engine preheating for engine startup in extreme cold It is also used to provide personnel heat When heater is required to preheat engine coolant and engine block before startup it should be turned on 1 2 1 hour before engine is started e Auxiliary heater AUX indicator light illuminates only when burner is lit Indicator light turns on and off automatically During auxiliary heater operation watch battery indicator If necessary start engine to charge batteries a Place master battery switch to ON b Turn all electrical equipment in cab OFF i e heated mirrors defroster blower per sonnel heater blower etc c Push auxiliary heater coolant flow control knob IN located on the radio support bracket d Place heater mode control lever 3 to HEAT e Turn ignition switch to the accessory position counterclockwise 0006 00 6 9 2320 302 10 OPERATION UNDER UNUSUAL CONDITIONS CONTINUED 0006 00 OPERATE IN EXTREME COLD CONTINUED f Place AUX switch 2 in ON position Green light in switch will illuminate AUX HTR light 1 will light when combustion starts after approximately 50 sec onds g Preheat engine for approximately 45 minutes and start engine
137. ress to energize starter solenoid Release button as Soon as engine starts Utility Light Switch ON OFF toggle switch controls utility lights mounted on back of cab Up position is ON Down position is OFF Panel Lights Control Brightens or dims instrument panel lights Turn Knob clockwise to brighten and counterclockwise to dim Turn fully counterclockwise to shut off panel lights Strobe Light Switch ON OFF toggle switch controls strobe warning light on top of vehicle Up position is ON Down position is OFF 0004 00 10 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 INSTRUMENT PANEL CONTINUED TMDE Connector Used to connect TMDE to fault isolate engine ABS CWS and transmission Connector Not used Check Engine CHK Used by maintenance personnel for engine ENG Button diagnostic purposes ONLY 0004 00 11 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS CONTINUED 0004 00 INSTRUMENT PANEL CONTINUED 4 Lower Right Dash Panel POWER OUTLET 12V 10A 342 015 Wiper Washer Turns windshield wipers on off Clockwise is ON Control Counterclockwise is OFF To wash windshield press knob in to spray water and to turn wipers on Mirror Heat Switch ON OFF toggle switch controls mirror heat for defrosting Auxiliary Heater Lights up when arctic heater burner is lit Indicat
138. rol valve lever to LOCK position while maintaining vehicle speed Pro ceed over poor road conditions with caution c Tounlock inter axle place inter axle lockout control valve lever in UNLOCK posi tion and remove foot from accelerator 0005 00 8 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 DRIVING 1 Perform initial adjustments daily checks and self tests 2 Start engine and allow truck to warm up WARNING Serious injury may result if head clearance is not adequate while sitting in seat Before driving or riding in vehicle ensure there is adequate clearance at maximum upward travel of seat 3 Adjust seat 4 Adjust seat belt WARNING Ensure that steering wheel adjustment control lever is in locked neutral position before driving truck NEVER try to adjust tilt or height of steering wheel while driving Failure to follow this warning may cause death or injury to personnel 5 Use steering wheel adjustment control lever to adjust tilt and steering wheel height 6 Turn on lights as necessary 7 Select transmission gear WARNING When coupled to a semitrailer DO NOT exceed 35 mph 56 kph on second ary gravel roads Failure to follow this warning could result in injury 8 Move truck gradually by depressing accelerator CAUTION During long engine idling periods engine coolant temperature will fall below normal operating range The incomplete combustion of fuel in a cold en
139. rvice brakes WARNING 2 COMPRESSED AIR Compressed air used for cleaning or drying purposes or for clearing restrictions should never exceed 30 psi 207 kPa Wear protective clothing goggles shield gloves etc and use caution to avoid injury to personnel 9 2320 302 10 WARNING DIESEL FUEL HANDLING DO NOT smoke or permit any open flame in area of truck while you are servicing diesel fuel system Be sure hose nozzle is grounded against filler tube during refuel ing to prevent static electricity Failure to follow this warning may result in injury to personnel or equipment damage Auxiliary heater if equipped must be switched to OFF while refueling Fuel may ignite causing injury or death to personnel and damage to vehicle DO NOT perform fuel system checks inspections or maintenance while smoking or near fire flames or sparks Fuel may ignite causing injury or death to personnel and damage to vehicle Fuel tank cap may become hot during vehicle operation Use hand protection when removing fuel cap WARNING ETHER QUICK START SYSTEM Ether is highly flammable and explosive DO NOT perform ether quick start system checks or inspections while smoking or near fire flame or sparks Failure to follow this warning may cause a fire and explosion causing serious injury or death to person nel WARNING FIRE EXTINGUISHER Discharging large quantities of dry chemical fire extinguisher in cab may result in
140. s View H and spare wheel and tire carrier ratchet gear shaft View I 0016 00 12 9 2320 302 10 CHAPTER 5 SUPPORTING INFORMATION 9 2320 302 10 REFERENCES 0017 00 SCOPE This appendix lists all forms field manuals technical manuals and other publications refer enced in this manual and which apply to the operation of the M915A3 Tractor Truck PUBLICATION INDEXES The following indexes should be consulted frequently for latest changes or revisions and for new publications relating to material covered in this technical manual Consolidated Index of Army Publications and Blank Forms DA Pam 25 30 Functional User s Manual for the Army Maintenance Management System uer eh EHRE en DA Pam 738 750 U S Army Equipment Index of Modification Work Orders DA Pam 750 10 FORMS Refer to DA Pam 738 750 The Army Maintenance Management System TAMMS for instruc tions on the use of maintenance forms Equipment Inspection and Maintenance Worksheet DA Form 2404 Equipment Log Assembly DA Form 2408 Product Quality Deficiency SF Form 368 Recommended Changes to Equipment Technical Publications DA Form 2028 2 Recommended Changes to Publications and Blank Forms DA Form 2028 FIELD MANUALS Basic Cold Weather Manual pse ene a o ea eee eee FM 31 70 Cam
141. s and notify Unit Mainte nance of any unusual gage readings or problems c Notify Unit Maintenance to shorten differential oil change interval Parking Vehicle a Park vehicle under cover if possible If shelter is not available cover vehicle with tarpaulins If there aren t enough tarps to cover entire vehicle arrange tarps around engine compartment and over radiator to keep sand and dust out Cover window glass to protect against sand blasting b Ensure all tires are inflated to proper pressure c Check frequently for rust and fungus growth Clean and lubricate vehicle to help prevent deterioration OPERATE IN MUD OR SOFT SURFACES 1 Before entering mud or other soft surfaces check conditions stop vehicle and select appropriate transmission gear range Place inter axle lockout control valve lever in LOCK position Enter soft area at amedium speed for gear range selected 2 Maintain steady pressure on accelerator pedal to keep vehicle rolling until solid ground is reached Do not accelerate to point where wheels spin and do not stop if possible 3 If vehicle gets stuck try to pull out slowly in a low gear Boards brush or similar materi als may be placed under tires to provide traction 4 When vehicle reaches hard surface place inter axle lockout control valve lever in UNLOCK position 5 Notify Unit Maintenance to clean and inspect propeller shafts for proper lubrication FORDING 1 General a Maximum ford
142. s been designed to operate safely and efficiently within the limits specified in this TM Operation beyond these limits is prohibited in accordance with AR 70 1 without written approval from Commander U S Army Tank automotive and Armaments Command ATTN AMSTA DSA FP IM Warren MI 48397 5000 If vehicle is left with engine running vehicle can move suddenly causing serious injury or death to personnel or damage to equipment WARNING WHOLE BODY VIBRATION When coupled to a semitrailer DO NOT exceed 35 mph 56 kph on secondary gravel roads Failure to follow this warning could result in injury em cm 9 2320 302 10 WARNING WORK SAFETY Use caution when lifting or handling wheel and tire assembly It is heavy and could cause injury if improperly lifted or if it falls on you Hydraulic jack is intended only for lifting truck not for supporting vehicle to perform maintenance DO NOT get under truck after it is raised unless it is properly supported with blocks or jackstands Fail ure to observe this warning may result in death or injury to person nel Failure to completely turn ON or OFF air cutoff valve will cause loss of brakes on trailer or truck Lifting cables chains hooks and slings used for lifting truck must be in good condition and of suitable capacity Failure to follow this warning may result in injury or death to personnel and damage to equipment Improper use of lifting eq
143. s of safety and hazardous materials icons used within the technical manual BIOLOGICAL abstract symbol bug shows that a material may gt contain bacteria or viruses that present a danger to life or health M e CHEMICAL drops of liquid on hand shows that the material will cause burns or irritation to human skin or tissue EAR PROTECTION headphones over ears shows that noise level will harm ears ELECTRICAL electrical wire to arm with electricity symbol run ning through human body shows that shock hazard is present EYE PROTECTION person with goggles shows that the material will injure the eyes FIRE flame shows that a material may ignite and cause burns FLYING PARTICLES arrows bouncing off face with face shield shows that particles flying through the air will harm face N EN aN i EU E poop h 9 2320 302 10 HEAVY OBJECT human figure stooping over heavy object shows physical injury potential from improper lifting technique HEAVY PARTS hand with heavy object on top shows that heavy parts can crush and harm HEAVY PARTS heavy object on human figure shows that heavy parts present a danger to life or limb HOT AREA hand over object radiating heat shows that part is hot and can burn VAPOR human figure in a cloud shows that material vapors present a danger to life or health 9 2320 302 10 FOR INFORMATION ON FIRST AID REFER FM 21 11 Spa O
144. serious engine or transmission damage may result 1 Check Gages and Indicators Frequently If gage or indicator shows an abnormal read ing or warning light comes on bring vehicle to a safe stop shut down engine and inves tigate cause CAUTION Steering wheel should not be held at full steer for more than 10 seconds This could result in overheating of oil loss of oil from power steering reservoir and pump gear damage 0005 00 6 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 DRIVING TIPS CONTINUED 2 Avoid Over Steering Become familiar with steering characteristics of vehicle before attempting maneuvers in limited space Drive Efficiently and Economically a Drive at highway speed Recommended normal highway cruising range is 1800 1900 rpm If operating on hilly terrain in high winds or in other conditions that make it impractical to operate without reserve power operate vehicle in lower gear When slowing for posted speed zones remain in D Drive position and reduce engine rpm When driving uphill under load proper use of gears shortens time on hills and minimizes amount of shifting As vehicle starts uphill press accelerator pedal as required to maintain speed WARNING DO NOT use engine brake if road surfaces are slippery Use of engine brake on wet icy or snow covered roads could result in loss of vehicle control Failure to follow this warning could result in death
145. splay If system fail light illuminates continue mis sion and turn CWS off Notify supervisor During Brakes Check brakes for pulling or a Brakes pull or grab grabbing Check that brake pedal is firm b Brake pedal is and does not fully depress to spongy or de floor presses fully to floor 0012 00 8 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Location Item To Check Not Fully Mission Interval Service Procedure Capable If Check for smooth steering without Steering is erratic pulling to one side or excessive pulls or has excessive play more than 2 in 6 4 cm play in steering wheel Power Check for unusual noise or vibra Unusual noise or vibra Train tion from engine transmission tion is present drive shafts axles and wheels Air Condi NOTE toner Perform the following inspection only if air condi tioner is required due to climatic conditions Turn air conditioner on and set blower to maximum cooling speed settings Wait five minutes to allow temperature to stabilize Check outlet ducts for cool air If air is not cooler than ambient tem perature notify supervisor Be alert for evidence of fluid leak Class III oil coolant or age fuelleaks are evident NOTE If leakage is detected further investigation is required to deter mine location and cause of leak Overall a Check under truck for evidence
146. t on rear of propeller shaft at the input to the forward rear axle is disconnected and tied up to vehicle undercarriage 0006 00 2 9 2320 302 10 OPERATION UNDER UNUSUAL CONDITIONS CONTINUED 0006 00 TOW TRUCK CONTINUED d When front axle of truck being towed is lifted off the ground disconnect universal joint on propeller shaft at the input to the forward rear axle and tie it to vehicle undercarriage e Whenrear tandem axles of truck being towed are lifted off ground ensure inter axle lockout control valve lever is in UNLOCKED position 2 Towing Procedures WARNING Brakes will be released when air is applied to a disabled vehicle DO NOT connect air lines to a disabled vehicle without first blocking wheels and con necting tow bar between vehicles Failure to follow this warning could result in death or injury to personnel and damage to equipment NOTE Towing vehicle speed should not exceed 15 mph 24 kph on primary roads and 8 mph 13 kph on secondary roads For cross country towing all tires of disabled truck should be on ground a Install medium duty tow bar at towing vehicle pintle and disabled truck towing eyes Ensure tow bar is long enough to allow complete turning radius b Connect air pressure hoses between disabled truck and towing vehicle c Release parking brakes and turn appropriate lights on CAGE AND UNCAGE BRAKES 1 Cage Brakes In the event of an air pressure loss spring brakes on
147. tem being checked inspected When in doubt notify your supervisor e When operating with Class I or II leaks continue to check fluid levels as required in the PMCS e Class III leaks should be reported immediately to your supervisor Leakage Definitions for PMCS Class I Seepage of fluid as indicated by wetness or discol oration not great enough to form drops Class II Leakage of fluid great enough to form drops but not enough to cause drops to drip from item being checked inspected Class III Leakage of fluid great enough to form drops that fall from item being checked inspected 0011 00 3 0011 00 4 Blank 9 2320 302 10 PREVENTIVE MAINTENANCE CHECKS AND SERVICES PMCS 0012 00 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Location Item To Item Check Not Fully Mission No Interval Service Procedure Capable If NOTE Review all WARNINGs CAUTIONS and NOTEs before per forming PMCS and operating the truck Perform all PMCS checks if a You are the assigned operator but have not operated the truck since the last weekly inspection b You are operating the truck for the first time FRONT AND LEFT SIDE 1 Before Overall a Check under truck for evidence a Class III oil coolant View of fluid leakage such as oil or fuel leaks are evi coolant or fuel dent NOTE If leakage is detected further investigation is required to deter mine location and cause of leak b Check
148. that you must perform checks and services for the interval listed 2 Interval Column This column tells you when you must perform the procedure in the procedure column a Before procedures must be done immediately before you operate the truck b During procedures must be done while you are operating the truck After procedures must be done immediately after you have operated the truck d Weekly procedures must be done once each week e Monthly procedures must be done once each month 3 Location Item To Check Service Column This column provides the location and item to be checked or serviced The item location is underlined NOTE The WARNINGs and CAUTIONs appearing in your PMCS table should always be observed WARNINGs and CAUTIONS appear before applicable procedures You must observe these WARNINGS to prevent serious injury to yourself and others and CAUTIONS to prevent your equipment from being damaged 4 Procedure Column This column gives the procedure you must perform to check or ser vice the item listed in the Item To Check Service column to know if the equipment is ready or available for its intended mission or for operation You must perform the proce dure at the time stated in the interval column 5 Not Fully Mission Capable If Column Information in this column tells you what faults keep your equipment from being capable of performing its primary mission If you make check and service procedures that show
149. the tandem rear axles will apply the brakes If the vehicle must be towed and there is not enough air system pressure to compress the power spring in the spring brake chambers to release the brakes compress them manually Each vehicle has four spring brakes 0006 00 3 9 2320 302 10 OPERATION UNDER UNUSUAL CONDITIONS CONTINUED 0006 00 CAGE AND UNCAGE BRAKES CONTINUED WARNING Brake chamber contains spring under great pressure To prevent person nel injury never work directly behind chamber If caging bolt will not engage properly spring may be broken e DO NOT remove clamp ring around spring brake chamber It is under tension and can cause personnel injury if released e When spring brakes are applied vehicle will stop quickly which could result in injury to personnel Also vehicle cannot be driven again until malfunction is repaired and enough air supply is present for operation of service brakes When caging brakes block wheels to keep truck from moving when brakes are released Failure to follow this warning may result in death or injury to personnel or damage to equipment a Block wheels b Remove cap 3 c Remove nut 4 washer 5 and release stud 2 from stowage pocket 1 d Insert cross pin end of release stud 2 into opening where cap 3 was removed e engage cross pin rotate release stud 2 until cross pin end goes into slot inside of spring chamber 6 Turn release stud right
150. ting Substances ODS Preparation for Storage or Shipment Preventive Maintenance Checks and Services PMCS for 915 Preventive Maintenance Checks and Services PMCS Introduction Rear Suspension System Theory of Operation References Other Publications Publication Indexes Technical Bulletins Technical Manuals Reporting Equipment Improvement Recommendations IEEE Sliding Fifth Wheel Operation Under Usual Conditions Steering System Theory of Operation Storage or Shipment Preparation for Stowage and Decal Data Plate Guide Index 4 Work Package 0005 00 0004 00 0001 00 0001 00 0012 00 0011 00 0003 00 0017 00 0017 00 0017 00 0017 00 0017 00 0017 00 0001 00 0005 00 0003 00 0001 00 0007 00 Page 0005 00 14 0004 00 1 0001 00 1 0001 00 2 0012 00 1 0011 00 1 0003 00 9 0017 00 1 0017 00 1 0017 00 2 0017 00 1 0017 00 2 0017 00 2 0001 00 1 0005 00 11 0003 00 8 0001 00 2 0007 00 1 9 2320 302 10 INDEX Continued Subject Work Package Page T Theory of Operation Air Conditioning System 0003 00 0003 00 10 Air System ta quee dua 0003 00 0003 00 6 Brake System
151. tock number of the item to be used for requisitioning purposes Column 3 Description CAGEC and Part Number Indicates the Federal item name in all capital letters followed by a minimum description when needed The stow age location of COEI and BII is also included in this column The last line below the description is the CAGEC Commercial and Government Entity Code in parentheses and the part number Column 4 Usable On Code When applicable gives you a code if the item you need is not the same for different models of equipment Column 5 Unit of Measure U M Indicates the physical measurement or count of the item as issued per the National Stock Number shown in Column 2 Column 6 Oty Rqr Indicates the quantity required 0018 00 1 9 2320 302 10 COMPONENTS OF END ITEM AND BASIC ISSUE ITEMS BII LISTS CONTINUED 0018 00 Table 1 Components of End Item List 1 2 3 4 Illus National Description Usable on Number Stock Number CAGEC and Part Number Code 0018 00 2 9 2320 302 10 COMPONENTS OF END ITEM AND BASIC ISSUE ITEMS BII LISTS CONTINUED 0018 00 342 073 Table 2 Basic Issue Items List 1 2 3 4 Illus National Description Usable on Number Stock Number CAGEC and Part Number Code 2540 00 670 2459 BAG ASSY PAMPHLET in cab glove box 19207 11676920 5140 00 356 8471 BAG TOOL in BII storage box 19204 7541507 751
152. tor coil blower motor control valves and air ducts The system is turned on by the mode control lever on instrument panel in cab The four speed blower switch controls flow rate An even cab temperature is maintained by controlling the coolant flow through the heater core or refrigerant flow through the evaporator coil THERMOSTATIC SWITCH CONDENSER HEATER EXPANSION VALVE EVAPORATOR COIL COMPRESSOR 342 010 RECEIVER DRYER 0003 00 10 9 2320 302 10 THEORY OF OPERATION CONTINUED 0003 00 COLLISION WARNING SYSTEM CWS 1 The CWS consists of an antenna assembly central processing unit driver display unit side sensor side sensor display and wiring harness 2 The CWS is a forward and side looking radar system that transmits and receives signals reflected off of objects to the front and side of the tractor 3 The forward looking antenna assembly determines distance azimuth and approximate speed of vehicle forward of the tractor 4 The side sensor detects vehicles or objects from two to ten feet moving or stationary alongside the tractor SIDE SENSOR x DISPLAY ONO T E CENTRAL en PROCESSING UNIT ANTENNA ASSEMBLY WIRING HARNESS 342 011 0003 00 11 0003 00 12 Blank 9 2320 302 10 2 OPERATING INSTRUCTIONS 9 2320 302 10 DESCRIPTION AND USE OF OPERATOR S CONTROLS AND INDICATORS 0004 00 GENERAL Do not attempt to operate the M91
153. trical System Theory of Operation Engine ShutDown Engine Start suse eee AAA d Equipment Characteristics Capabilities and Fatur Saana sse Index 1 Work Package 0019 00 0003 00 0003 00 0015 00 0003 00 0002 00 0011 00 0003 00 0018 00 0003 00 0001 00 0002 00 0004 00 0001 00 0003 00 0003 00 0005 00 0005 00 0002 00 Page 0019 00 1 0003 00 10 0003 00 6 0015 00 1 0003 00 6 0002 00 1 0011 00 1 0003 00 11 0018 00 1 0003 00 4 0001 00 1 0002 00 6 0004 00 1 0001 00 1 0003 00 1 0003 00 4 0005 00 10 0005 00 3 0002 00 1 9 2320 302 10 INDEX Continued Subject Work Package Page E Continued Equipment Data 0002 00 0002 00 6 Equipment Description and Data 0002 00 0002 00 1 Exhaust System Theory of Operation 0003 00 0003 00 3 Expendable and Durable Items List 0020 00 0020 00 1 F Fuel System Theory of Operation 0003 00 0003 00 1 Instructions Lubrieation deh sated A 0016 00 0016 00 1 Refueling een 0013 00 0013 00 1 Tire Maintenance 0014 00 0014 00 1 Troubleshooting 0008 00 0008 00 1 Truck Cleaning llle 0013 00 0013 00 1 Wheel Maintenance 0014 00 0014 00 1 Introduction Theory of
154. trol knob OUT located on the radio support bracket d Place heater mode control lever 3 to HEAT e Turnignition switch to the accessory position counterclockwise f Place AUX HTR switch 2 in ON position Green light in switch will illuminate AUX HTR light 1 will light when combustion starts after approximately 50 sec onds NOTE If HI LO switch is set to HI position heater will automatically switch to low heat when temperature of coolant at heater inlet reaches 176 F 80 LO position is suitable when heater operates over an extended period g Place HI LO switch 4 to desired setting h To turn auxiliary heater off place AUX HTR switch 2 to OFF position Heater burner will stop and AUX HTR light will go out within a few minutes Blower will continue to run for approximately 90 seconds OPERATE IN EXTREME HEAT 1 General During very hot weather driving procedures may require altering to prevent vehicle overheating Avoid continuous high speeds long hard pulls and continuous operation in soft terrain 0006 00 8 9 2320 302 10 OPERATION UNDER UNUSUAL CONDITIONS CONTINUED 0006 00 OPERATE IN EXTREME HEAT CONTINUED 2 3 Driving Vehicle a Check water temperature gage and stop if temperature is unusually high Allow vehicle to cool down b Check cooling system air cleaner air cleaner restriction indicator engine oil level and radiator fins frequently Perform necessary service
155. uipment and improper attachment of cables to vehicle can result in serious injury to personnel and equip ment damage Observe all standard rules of safety ALWAYS install hood prop after opening hood Failure to follow this warning could result in severe injury to personnel 9 2320 302 10 TECHNICAL MANUAL HEADQUARTERS TM 9 2320 302 10 DEPARTMENT OF THE ARMY Washington D C 28 May 2001 OPERATOR S MANUAL FOR TRUCK TRACTOR LINE HAUL 52 000 GVWR 6 X 4 M915A3 NSN 2320 01 432 4847 REPORTING ERRORS AND RECOMMENDING IMPROVEMENTS You can help improve this publication If you find any mistakes or if you know of a way to improve the procedures please let us know Submit your DA Form 2028 Recommended Changes to Equipment Technical Publications through the Internet on the Army Electronic Product Support AEPS website The Internet address is http aeps ria army mil If you need a password scroll down and click on ACCESS REQUEST FORM The DA Form 2028 is located in the ONLINE FORMS PROCESSING section of the AEPS Fill out the form and click on SUBMIT Using this form on the AEPS will enable us to respond quicker to your comments and better manage the DA Form 2028 program You may also mail fax or e mail your letter DA Form 2028 direct to AMSTA LC CI TECH PUBS TACOM RI 1 Rock Island Arsenal Rock Island IL 61299 7630 The e mail address is TACOM TECH PUBS ria army mil The fax number is DSN 793 0726 or Commercial 30
156. ulk cargo and petroleum products over pri mary and secondary roads under worldwide climatic conditions in a military environment MAINTENANCE FORMS RECORDS AND REPORTS Department of the Army forms and procedures used for equipment maintenance will be those prescribed by DA Pam 738 750 Functional User s Manual for the Army Maintenance Manage ment System TAMMS as contained in the Maintenance Management Update REPORTING EQUIPMENT IMPROVEMENT RECOMMENDATIONS EIRs If your truck needs improvement let us know Send us an EIR You the user are the only one who can tell us what you don t like about your equipment Let us know why you don t like the design or performance Put it on an SF Form 368 Product Quality Deficiency Report Mail it to us at Commander U S Army Tank automotive and Armaments Command ATTN AMSTA LC CIP WT Rock Island Illinois 61299 7630 We ll send you a reply CORROSION PREVENTION AND CONTROL CPC 1 Corrosion Prevention and Control CPC of Army materiel is a continuing concern It is important that any corrosion problems with this item be reported so that the problem can be corrected and improvements can be made to prevent the problem in future items 2 While corrosion is typically associated with rusting of metals it can also include deterio ration of other materials such as rubber and plastic Unusual cracking softening swell ing or breaking of these materials may be a corrosion problem 3 I
157. ure that parking brake is applied 2 Ensure that all accessories are off and engine brake system switches in OFF down position 3 Turn ignition switch to ON position Low air pressure warning light PARK BRAKE light if applied ABS light s and warning buzzer come on ABS light s will go off after passing a four second self test 4 Ensure that inter axle lockout control valve lever is in UNLOCK position CAUTION DO NOT operate starter motor for more than 30 seconds at a time After 30 seconds allow starter motor to cool for at least two minutes before attempting to start engine again Excessive heating of starter motor may result in damage or early starter failure I Press engine start button NOTE Fuel filter water separator is located in engine compartment behind the left side frame rail mounted on the engine block 0005 00 3 9 2320 302 10 OPERATION UNDER USUAL CONDITIONS CONTINUED 0005 00 START ENGINE CONTINUED 6 When engine starts release engine start button If engine fails to start prime fuel system by pumping fuel filter water separator valve 1 for two minutes Press engine start but ton If engine still fails to start pump valve for 30 seconds Press engine start button If engine still fails to start notify Unit Maintenance 342 030 CAUTION DO NOT run engine above idle speed until oil pressure gage indicates at least 15 psi 100 kPa at idle speed 7 DO NOT run engi
158. using cable pulls if present and allow all air and liquid con densation to drain When fully drained close drain valve ET BU E 342 008 0012 00 20 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Location Item To Item Check Not Fully Mission No Interval Service Procedure Capable If Engine NOTE Crankcase To ensure an accurate reading vehicle must be parked on level ground Wait 10 minutes after shutting down engine to allow oil to drain into crankcase Remove dipstick 50 and check level of lubricating oil Safe oper ating level is between ADD and FULL marks on dipstick If level is low add oil through filler open ing 51 until level on dipstick is correct WP 0016 00 342 058 0012 00 21 9 2320 302 10 Table 1 Preventive Maintenance Checks and Services PMCS for M915A3 Continued Location Item To Item Check Not Fully Mission No Interval Service Procedure Capable If 40 After Radiator 2 WARNING DO NOT remove radiator cap unless engine is cold Remove cap in two steps First place a thick cloth over cap and slowly turn cap left to first stop Pause and allow pressure to escape Turn cap fur ther left until it can be removed This is a pressur ized cooling system and escaping steam hot water or coolant will cause serious burns Remove radiator cap 52 and check co
159. ystem ze This work package explains how the components and systems of the M915A3 work together A functional description is provided for each major component and system DRIVE TRAIN The drive train of the M915A3 consists of a Detroit Diesel DDEC IV engine and an Allison 6 speed automatic transmission connected to RT 40 145P rear tandem axles FORWARD REAR AXLE TRANSMISSION ENGINE FUEL SYSTEM 1 Fuel to power the engine is pumped out of the fuel tank by an engine mounted fuel pump The engine fuel system consists of one electronic unit injector per cylinder a transfer pump low pressure fuel lines and primary and secondary fuel filters The engine is governed by an electronic control system The system controls idle speed and limits engine maximum speed The driver controls engine speed through the position of the electronic throttle position sensor foot pedal Fuel filters are spin on types The primary fuel filter has a hand fuel primer pump and a water drain Fuel may be drained from the tank through the drain port located on the bottom of the tank There is a computer controlled ether quick start system for use in cold weather 0003 00 1 9 2320 302 10 THEORY OF OPERATION CONTINUED 0003 00 FUEL SYSTEM CONTINUED CYLINDER ids RESTRICTED FITTING UPPER ITTING FUEL PUMP PRIMARY FUEL FILTER WITH HAND PRIMER FUEL TANK 342 004 0003 00 2 9 2320 302 10 THEORY OF OPER

TM 9-2320-302-10 - JATONKAM35s HOME ON THE WEB

Contents

Download Pdf Manuals

Related Search

Related Contents