Home

draft c3 tm 3-4230-228-23&p technical manual

1. 8 6 0 4 Ohms Q RX1 8 6 0 4 Ohms Q STATOR CHARGING COILS RESISTANCE TEST Connect Positive Connect Negative Set Meter to Ohm Scale e pecification Meter Lead to er Lead to T OOO A ETO A o Continuity co A RX1 No Continuity co STATOR IGNITION POWER COILS RESISTANCE TEST Connect Positive Connect Negative Set Meter to Ohm Sc pecification Meter Lead to 0 10 0 Ohms Q RX1 175 0 10 0 Ohms Q 2 21 4 Change 3 TM 3 4230 228 23 amp P MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 23 ENGINE FAILS TO START OR STOPS 215cc ENGINE Continued Step 6 Check for defective clogged fuel system by disconnecting the fuel line at the carburetor and operating the ball pump Fuel should flow freely from the open hose Be sure to direct fuel into container and keep away from sparks and electrical circuits If fuel is adequate service and adjust the carburetor page 2 48 and 2 51 Step 7 Check for fuel at fuel filter inlet Step 8 Replace carburetor page 2 53 If the malfunction persists notify Direct Support Maintenance 24 ENGINE RUNS ROUGHLY OR LACKS POWER SPEED 215cc ENGINE Step 1 Check spark plug for physical damage or fouling If the spark plug is damaged or fouled replace spark plug Ensure plug gap is 0 035 to 0 040 in 0 89 to 1 0 mm prior to installation Step 2 Check that spark plug tip is firmly attac
2. Bulk Hose MIL H 13444 Type 1 Equipment Condition Engine shut down and cold a Removal and Disassembly 1 2 3 4 Disconnect hose assembly at photocell and tee assembly 4 and engine Remove elbow 1 Remove connector 38 Cut tiedown straps as necessary and remove hose 2 b Assembly and Installation 1 2 3 4 As required cut 36 inch length of hose 2 from bulk hose Install connector 3 and elbow 1 on hose 2 Thread hose assembly through frame and connect elbow to engine nipple as indicated Connect other side of hose assembly to photocell and tee assembly 4 2 62 Change 3 TM 3 4230 228 23 amp P Change 3 2 63 TM 3 4230 228 23 amp P 2 21 BURNER FUEL SYSTEM MAINTENANCE This task includes a Inspect b Repair 1 Replacement of Hoses and Fuel Can Components 2 Replacement of Pressure Regulating Valve INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Materials Required Brush Varnish Item 4 App D Cleaning Solvent Item 21 App D Bulk Hose MIL H 13444 Type 1 Equipment Conditions Engine shut down and cold 2 64 a b Inspect 1 Remove panel 3 and inspect fuel system for leaking fuel cans hoses and connections 2 Inspect strainer 10 for holes in screen and dirt accumulation Clean as necessary reject if screen is damaged or corroded 3 Inspect gasket 15
3. cccccsssssccceceessssseeeeeeeeees 2 4 Section III Unit Troubleshooting Procedures cccccccssssssscccecesssssssececeeceessesseeeeeeeseessesaeeeeeceeees 2 9 Section IV Unit Maintenance Procedures cc ccccccccssssssssscccecessesssseceeecceessessaeecececeessssaaeeeeceeees 2 22 Section V Preparation for Storage or Shipment ccccccccccccesssssseceeeeceeeseeseeeeeeceessessnaeeeeeeeeens 2 103 CHAPTER 3 DIRECT SUPPORT MAINTENANCE INSTRUCTIONG cccccsssccceesseeeeesseeeees 3 1 Section I Direct Support Maintenance Troubleshooting 0 ccccccccccccessessscceeeeeeessnssseeeeeeeeenes 3 1 Section II Direct Support Maintenance Repair Procedures cccccccssssssssceeeeeessessneeeeeeeeees 3 19 Change 3 i TM 3 4230 228 23 amp P APPENDIX A APPENDIX B APPENDIX C Section I Section II Group 00 Group 01 Group 02 TABLE OF CONTENTS Continued PAGE REFERENCES reni TEE NN TE a E A 1 MAINTENANCE ALLOCATION CHART MAC J cceescesseessecesteeeeteeesseeeensneeesaes B 1 REPAIR PARTS AND SPECIAL TOOLS LIST cece ccccceeseeesneeeeneeeeseeeeseeeeeeaes C 1 Introduction Repair Parts List Decontaminating Apparatus Power Driven Lightweight M1748 C 1 1 Pump Heater Assembly cccccccccccsssssssccecccessesscceececcessesssaeeeeccessessnaeeeeeeeeess C 2 1 thru C 8 1 0101 Panel Drive Side ce oia n ea E NEE ASEIN E
4. Notify Direct Support Maintenance if trouble continues 2 14 Change 3 TM 3 4230 228 23 amp P MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 7 WATER DISCHARGE THROUGH PRESSURE RELIEF VALVE Step 1 Disconnect nut from body of both flow switches and inspect switch mechanism for broken spring dirt and corrosion and freedom of movement Clean as necessary using clear water If defective mechanism is found or trouble persists notify Direct Support FLOW SWITCH 8 NO BURNER FUNCTION NO IGNITION 215cc ENGINE Step 1 Check fuel pressure at control panel If fuel pressure is significantly below normal 95 105 psi repair filter page 2 68 If fuel pressure remains low replace fuel pressure regulating valve page 2 65 If fuel pressure is still low replace fuel pump page 2 34 Step 2 Check for spark at igniter plug as follows WARNING Be sure to follow these procedures when checking plug for spark Failure to do so could result in electrical shock and or ignition of surrounding fuel Keep plug away from open fuel lines a Shut down engine and turn function selector switch to WANDS or SHOWERS b Check for fuel leakage in immediate vicinity of burner assembly Wipe off fuel as necessary c Remove igniter plug boot and igniter plug from burner assembly and reconnect igniter plug boot to igniter plug Change 3 2 15 TM 3 4230 228 23 amp P 2 7 UNIT MAINTENANCE TROUBLESHOOTING TABLE Continued MALF
5. This task includes a Replace 1 Removal 2 Installation b Repair Replace Element 1 Disassembly 2 Assembly INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Materials Required Cleaning Solvent Item 21 App D Brush Varnish Item 4 App D Tags Item 25 App D Locking Compound Item 6 App D Equipment Conditions Engine shut down and cold NOTE There are two different heater fuel filter assemblies installed on the M17 The original A version has a glass bowl The B version has a shallow plastic bowl Even though the filter assemblies are interchangeable the filter parts are not Know what filter you have prior to ordering parts or attempting maintenance If the filter assembly requires replacement replace with the B version a Replace 1 Removal a Remove drive side panel 12 page 2 32 b Loosen thumb nut 9 and drain fuel from filter Be sure to catch fuel in any available container c Tag and disconnect hose 10 by first disconnecting at tool box connection and then at nipple 18 on filter d Tag and disconnect hose 11 by first disconnecting at fuel pump connector and then at nipple 18 on filter e Remove two nuts 1 bolts 7 washers 2 and 6 and filter assembly 8 Remove two nipples 13 bolt 3 washer 4 and two plugs 5 2 66 Change 3 TM 3 4230 228 23 amp P 2 Installation a If you hav
6. a Remove gaskets 1 and 2 b Remove cap 5 c Remove o ring 4 and sediment strainer element 3 d If necessary remove screw 6 and lanyard 7 e Clean all parts with water and inspect for serviceability Discard unserviceable items 2 Assembly a Install sediment strainer element 3 o ring 4 and cap 5 b Install lanyard 7 with screw 6 c Install gaskets 1 and 2 2 90 TM 3 4230 228 23 amp P 2 32 PRESSURE HOSE ASSEMBLY MAINTENANCE This task includes a Replace b Repair INITIAL SET UP Equipment Condition Engine shut down and cold a Replace Replace pressure hose assembly if hose section or couplings are unserviceable b Repair Repair of hose assembly is limited to replacement of o ring TM 3 4230 228 23 amp P 2 33 SHOWERS ASSEMBLY MAINTENANCE This task includes a Replace b Repair 1 Disassembly 2 Assembly INITIAL SET UP Tools Required Tool Kit General Mechanics Automotive SC 5180 90 N26 Materials Required Locking Compound Item 6 Equipment Condition Showers removed from decontaminating apparatus a Replace l Replace individual shower sections if tubes and couplings except items 9 and 10 are unserviceable b Repair 1 Disassembly a Remove shower jets 2 3 7 and 6 from tubes 1 9 and 8 and hose assembly 4 b Remove coupling half 10 and reducer 11 from pipe 1 c Clean all parts with water and in
7. 3 to 16 18 lb ft in sequence as indicated d Recheck torque following the same sequence 2 Cleaning inspection of spark plug and spark plug cap a Disconnect spark plug cap 1 from plug 2 b Using a spark plug or socket wrench remove plug 2 c Clean plug with cleaning solvent and rags 2 42 Change 3 TM 3 4230 228 23 amp P d Inspect plug for burned electrodes and cracks Replace if burned or cracked e Using a feeler gage check for proper gap between electrodes Required gap is 0 035 to 0 040 inch for the 215cc engine If the gap is too small regap by bending outer electrode If gap is too large tap on lower electrode to reduce gap NOTE Verify that spark plug tip is fingertight to spark plug body f Install plug 2 and reconnect plug cap 1 g Reinstall access cover 0 2 and three screws 0 1 CYLINDER HEAD NUT TTORQUING SEQUENCE OERS 4 one Sf Re FRY Gea OES Qf en a ARR h K K W ae Change 3 2 43 TM 3 4230 228 23 amp P B 2 15 ENGINE ASSEMBLY MAINTENANCE Continued b Repair 1 Replacement of Fuel Pump a Remove two bolts 13 lockwashers 12 washers 11 and drain plate 10 b Disconnect air 5 and fuel hoses 6 and 8 from fuel pump 9 c Remove two screws 7 and remove fuel pump 9 and shim 4 d Position shim 4 and replacement fuel pump on fan housing spacer and secure with two screws 7 wm e Rec
8. 3 3 DIRECT SUPPORT MAINTENANCE TROUBLESHOOTING TABLE Continued Table 3 1 Direct Support Troubleshooting Continued MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION J 4 EXCESSIVE NOISE AND VIBRATION 215cc ENGINE Step 1 Check for damaged muffler Replace muffler page 2 46 2 if unserviceable Step 2 Check for torn or improperly adjusted engine mounts four places Adjust as necessary page 2 40 if damaged replace engine mounts page 3 106 ENGINE MOUNTING ENGINE FRAME 3 16 CLEARANCE gS Step 3 Check for bent or damaged vanes If vanes are missing the fan is bent or imbalance is suspected the fan must be replaced page 3 39 Step 4 Check clutch for worn housing damaged bearings scored drum or defective centrifugal member If clutch is damaged replace defective components page 3 120 3 8 Change 3 TM 3 4230 228 23 amp P MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION Step 5 Remove starter and rotate crankshaft by hand to see if freedom of movement is allowed or if crankshaft is binding If binding occurs the engine must be replaced page 3 109 5 NO WATER FLOW NO PRESSURE Remove coil inlet assembly and replace check valve page 3 30 6 LOW WATER FLOW LOW PRESSURE Remove coil inlet assembly page 3 30 and replace check valve page 3 32 If trouble persists replace pressure regulating valve page 2 65 PRESSURE REGULATING S VALVE Change 3 3
9. 4 5 6 7 8 9 Remove panel 6 page 2 32 and fuel pump belt page 2 26 While holding water pump pulley loosen nut 4 and lockwasher 3 and remove Loosen two setscrews on fuel pump drive 2 and remove drive Remove three screws 5 and shouldered shaft 1 Clean drive mounting surfaces and all removed parts with cleaning solvent and brush and inspect for wear and damage Discard unserviceable parts Install shouldered shaft 1 on fan assembly hub and secure with three screws 5 Install drive 2 on shaft and secure with two integral setscrews Install lockwasher 3 and nut 4 Tighten nut while holding water pump pulley Reinstall fuel pump belt page 2 26 and panel 6 page 2 32 TM 3 4230 228 23 amp P 3 25 TM 3 4230 228 23 amp P 3 6 OUTLET ASSEMBLY MAINTENANCE This task consists of Repair a Disassembly and Removal b Assembly and Installation INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 90 N26 Materials Required Insulating Compound Item 8 Appendix D Locking Compound Item 6 Brush Varnish Item 4 Appendix D Cleaning Solvent Item 21 Appendix D Sealing Compound Item 7 Tiedown Straps Item 23 Equipment Condition Engine shut down and cold a Disassembly and Removal 1 2 3 4 5 6 3 26 Open tool box door and remove switch guard page 3 92 Remove low temperature cutout switch 10 disconne
10. Continued MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 8 NO BURNER FUNCTION NO IGNITION Continued Step 3 Check for loose or improperly attached connectors and measure continuity of system wiring harness at following check points NOTE Removal of bracket switch guard page 3 92 is necessary to gain access to TB3 TB2 3 Wire No 41 to TB2 4 Wire No 42 to TB1 12 Wire No 43 to TB1 11 to TB3 6 to TB3 5 to TB3 4 to TB3 3 to SW1A3 1 Function Switch SW1A3 2 Function Switch SW1A1 1 Function Switch TB3 8 TB2 14 TB2 13 TB2 12 TB2 11 If continuity is not measured in all tests tighten attaching screws and or loosen crimp on terminals as necessary Replace system wiring harness page 3 20 if lack of continuity continues in any of the above tests Step 4 Check flow switch FS1 bottom switch as follows a Disconnect nut and remove flow switch element from main body of flow switch b Check flow switch for dirt accumulation broken spring and freedom of movement of all parts c Disconnect flow switch lead at TB1 7 and check continuity between disconnected lead 22 and TB1 8 while pressing in on switch sleeve Switch is defective if continuity is absent when switch is closed spring depressed Replace flow switch if defective connecting lead 22 to TB1 7 23 to TB1 8 and 21 to TB1 1 Secure switch cable with tiedown straps item 23 App D 3 12 Change 3 TM 3 4230 228
11. OF RY b m n a wr Change 3 2 2 1 TM 3 4230 228 23 amp P 2 2 CHECKING UNPACKED EQUIPMENT a Inspect equipment for damage incurred during shipment If equipment has been damaged report damage on SF 364 Report of Discrepancy ROD b Check equipment against packing slip to see if shipment is complete Report all discrepancies in accordance with instructions of DA PAM 738 750 See that special tools components of end item and basic issue items are with the equipment Technical manuals must be present c Check to see whether equipment has been modified Refer to DA PAM 738 750 d Reject if parts are missing deformed show obvious physical damage rust and corrosion e Inspect to make sure stencil markings are present and readable See TM 3 4230 228 10 2 2 2 Change 3 TM 3 4230 228 23 amp P Section II PREVENTIVE MAINTENANCE CHECKS AND SERVICES PMCS Page Page Introductioun nena nn aaa tots 2 4 Preventive Maintenance Checks and Services PMCS Schedule 0 ccceee 2 5 2 3 INTRODUCTION a General This section contains the procedures and instructions necessary to perform unit PMCS These services are to be performed by Unit Maintenance personnel with the assistance where practical of the operator crew b Item Number Column Checks and services are numbered in chronological order regardless of interval Use this column as the source of item numbers when recording PMCS results in the
12. The corrective action step will direct you to the proper paragraph for performing the corrective action b This manual cannot list all malfunctions that may occur nor list all the tests or inspections and corrective actions If a malfunction is not listed or it is not corrected by the listed corrective actions notify your supervisor c Be sure to read All Warnings in the front of the manual before starting your maintenance d The maintenance procedures in this manual are to be performed by personnel with MOS of 63J Quartermaster and Chemical Equipment Repairer e Troubleshooting of the M17 may require the system to be in operation Read and be thoroughly familiar with the operating procedures and warnings which are found in your Operator s Manual TM 3 4230 228 10 prior to working on your equipment 3 1 TM 3 4230 228 23 amp P 3 2 SYMPTOM INDEX Malfunction No 19 13 10 1 20 15 16 11 12 17 18 14 Malfunction Both jets on only one wand activated Burner continues to operate Burner cycles excessively Deleted Engine fails to start or stops 215cc engine Excessive noise and vibration 215cc engine Engine operates erratically 215cc engine Engine runs roughly 215cc engine Engine overheats 215cc engine Low or erratic burner output Low water flow low pressure No burner function no ignition No heating showers only No water flow no pressure Reset lamp is off when burner fai
13. WATER INLET ASSEMBLY MAINTENANCE Continued 2 Cleaning NOTE Cleaning procedure can be performed with pump in place The four bolts 21 at bottom and top of pump are longer than the four side bolts When removing bolts note bolt position to aid in installation a b c d e f g Position unit on end with heat exchanger down if pump is to be cleaned in place Remove eight bolts 21 and plastic plug 23 in center of gap Thread one long bolt into threaded hole 22 and tighten until cover 20 breaks free of pump housing 16 Remove cover 20 from pump housing 16 and o ring 19 from cover 20 Remove bolt from threaded center hole NOTE Prior to removing rotor 18 note position of rotor vane cups Remove rollers 17 from housing 16 if necessary also remove rotor 18 Clean mud silt and contaminants from pump lid 20 housing 16 rotor 18 and rollers 17 with fresh clean water Rotate pulley and check for binding Examine inner case and lid for scoring If scoring is severe use a bench stone Item 22 App D to smooth surfaces Examine rollers 17 for cracks or fractures Reinstall rotor 18 if removed and rollers 17 Position o ring 19 on pump lid 20 Install pump cover on pump housing 16 with bolts 21 long bolts on top and bottom and short bolts in side of pump Cross tighten bolts 21 so that pump cover is drawn evenly Replace plastic plug 23 Op
14. 19 fiberboard cap 18 and four corner angles 17 over unit Secure unit to base 15 with banding straps 16 h If unit is to be shipped place pallet box 14 over unit fasten binding wires 13 and secure pallet box 14 to unit with banding straps 2 104 Change 3 TM 3 4230 228 23 amp P AN N lt nity EARN XX XANAX NY XXL ERRER AOAN I 3 A ee Yo AIEO OTORO ns ane AOOO ROES 17 y PENN MANNION UNG ON A AA ARA AA A a 1 NAO NAANA NIRA RSIS SSH TS LOK aie AUR VUNA Pai ORAS NK RRNA RRR AR 18 ROSH ORENS SUPRA ON a ie Coser cs ROE IN eh OOO s NF 5 SY Change 3 2 105 TM 3 4230 228 23 amp P 2 39 PREPARATION FOR LONG TERM STORAGE OR SHIPMENT Continued i If water tank was used drain and allow to dry NOTE Refer to TM 10 5430 233 12 amp P for 3000 gallon water tank takedown instructions j When water tank is completely dry fold tank as shown in TM 3 4230 228 10 Place water tank 12 into water tank box 11 Secure lid 10 to water tank box 11 with lag bolts 9 k Store all accessories in accessory kit 8 Place accessory kit 8 on base 3 Place plastic sheet 6 two boxed fuel cans 7 and twelve corner angles 5 Secure to base 3 with banding straps 4 l Ifunit is to be shipped place pallet box 2 over unit Fasten binding wires 1 and secure pallet box 2 to unit with banding straps m Refer to TM 3 4
15. 22 a 2 54 Change 3 TM 3 4230 228 23 amp P NOTE Mark location of spring 11 where it is connected onto lever 10 and mark which hole of speed setting disk that spring is connected to g Remove screw 8 washer 9 lever 10 spring 11 washer 12 throttle screw 7 speed setting disk 13 and spacer 14 NOTE Make sure tapered end of hinge pin 17 is inserted first h Install float needle 16 on float 18 and secure float to carburetor with hinge pin 17 Gi Install gasket 15 bowl 19 and jet 20 G Install air filter 1 and clamp 2 Tighten clamp 2 2 Cleaning Wash filter and carburetor bowl in cleaning solvent Clean all other parts with brush and solvent Apply light coating of oil to outer surface of air filter 3 Inspection FLOAT HINGE a Position float 5 so that brass hinge groove is facing up Compare float wear pattern with illustration If float wear is found in circled area replace entire carburetor WEAR PATTERN b Inspect air filter 1 for punctures or damage to filter element c Inspect throttle linkage for binding missing or damaged components Replace entire carburetor if any part is worn d Inspect carburetor body for cracks dents or missing components Replace entire carburetor if body is charred or badly dented e Inspect jet and adjusting screws for nicks burrs or stripped threads Replace entire carburetor if any part is defective f Ins
16. 23 amp P MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 8 NO BURNER FUNCTION NO IGNITION Continued Step 5 Step 6 Step 7 Step 8 Step 9 Step 10 Step 11 Disconnect jumper wire 12 from TB3 12 turn function selector switch to WANDS and measure continuity as follows Reinstall jumper wire when check is completed TB2 3 to TB2 4 TB3 12 to TB1 12 If continuity is not measured repair replace or tighten jumper wires 14 and 16 Replace function selector switch page 3 94 if lack of continuity continues Check fuel valve assembly by temporarily disconnecting lead 28 from TB1 5 and measuring for continuity between TB1 3 and disconnected wire lead Replace fuel valve assembly page 3 88 if open Normal resistance is approximately 7 7 ohms With system operating in WANDS check for DC voltage between TB1 12 and TB2 1 ground Replace control module page 3 82 if minimum of 3 5 VDC is not measured With system operating in WANDS check High Temperature Cut Out HTCO switch by measuring DC voltage at TB3 10 with ground at TB1 3 If a minimum of 3 5 VDC is not measured replace HTCO switch Removal is described on page 3 26 step 3 installation of switch is found on page 3 28 step 6 With system operating in WANDS and wands connected check Low Pressure Cut Out LPCO switch by measuring DC voltage at TB3 9 with ground at TB1 3 Replace manometer assembly page 3 22 if minimum of
17. 23 amp P 2 Assembly NOTE When assembling spray wand use locking compound on all threaded connections a Install nipple 10 and reducer 12 on swivel 13 b Install coupling 11 on reducer 12 c Install assembled components on spray gun 14 d Install sleeve 9 with holes toward coupling end and secure with clamp 8 e Install pipe 1 on spray gun 14 and position plastic tube 7 over pipe f Install adapter 6 g Position washers 2 and 4 and disk 3 on pipe as shown h Install nozzle 5 2 95 TM 3 4230 228 23 amp P 2 35 INJECTOR ASSEMBLY MAINTENANCE This task includes a Replace b Repair 1 Disassembly 2 Assembly INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Materials Required Locking Compound Item 6 App D Equipment Condition Injector assembly removed from unit a Replace Replace injector assembly if syphon injector 9 is unserviceable b Repair 1 Disassembly a Loosen hose clamp 3 and remove tubing 4 and hose clamp 3 b Remove syphon injector 9 from pipe reducer 5 c Remove gate valve 7 coupling half 6 and adapter 8 from syphon injector 9 d Remove adapter 2 and pipe reducer 5 from ball valve 1 e Clean all components with water and inspect for serviceability Discard unserviceable components 2 96 Change 3 TM 3 4230 228 23 amp P 2 Assembly NOTE All ma
18. 3 5 Remove two screws 11 and washers 10 securing manifold 9 from air inlet of heat exchanger 6 Remove two thumbnuts 7 and bracket 6 7 Carefully pull manometer assembly away from pump heater assembly through cutout in control panel 8 Clean all mounting surfaces with cleaning solvent and inspect mounting hardware for serviceability Discard all unserviceable parts CAUTION Tube connecting main body of manometer assembly with sensing unit is filled with fluid and fragile excessive bending can crimp or break lines Handle carefully 9 Carefully thread manometer assembly through cutout in control panel and position on pump and heater assembly Secure manifold assembly 9 to air inlet assembly of heat exchanger with two screws 11 and washers 10 10 Secure gage 5 to front panel with bracket 6 and thumbnuts 7 11 Install sensing unit 4 to outlet assembly 3 using nut 12 and compression sleeve 13 12 Route cable 8 into junction box assembly and connect as follows Wire Number Connecting Point 20 Red TB3 8 19 Red TB3 9 18 White TB3 9 17 White TB3 10 3 22 Change 1 TM 3 4230 228 23 amp P 18 Reinstall switch guard 10 page 3 94 14 Reinstall safety guard assembly page 3 102 SAFETY GUARD ASSEMBLY Change 3 3 23 TM 3 4230 228 23 amp P 3 5 PUMP HEATER ASSEMBLY MAINTENANCE Continued Replacement of Fuel Pump Drive 3 24 C 1 2 3
19. 3 3 5 TM 3 4230 228 23 amp P 3 3 DIRECT SUPPORT MAINTENANCE TROUBLESHOOTING TABLE Continued Table 3 1 Direct Support Troubleshooting Continued MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION J 2 ENGINE OPERATES ERRATICALLY 215cc ENGINE Continued Step 3 Perform engine compression test as follows a Remove spark plug b Install cylinder compression tester in spark plug hole c Vigorously pull starter handle several times d Read compression gage Replace engine page 3 36 if compression of less than 100 psi is indicated Step 4 Remove and disassemble clutch page 3 120 and inspect for worn bearings loose or broken clutch springs or worn clutch shoes Repair clutch by replacement of defective clutch components 3 6 Change 3 TM 3 4230 228 23 amp P MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 3 ENGINE OVERHEATS 215cc ENGINE Step 1 Remove three screws 1 and Ny Drive 2 Remove plastic fan guard 3 Check for broken fan blades Check for accumulation of dirt and debris on fan blades or in plastic fan guard 3 Remove dirt and debris from fan blades and plastic fan guard Reinstall plastic fan guard 3 Step 2 Check for excessive build up of carbon in the exhaust port Remove carbon from engine page 3 115 Step 3 If trouble persists engine probably has suffered catastrophic failure Replace engine page 3 36 FAN BLADES Change 3 3 7 TM 3 4230 228 23 amp P
20. 46 TB2 14 45 TB1 11 44 TB1 12 43 3 Cut tiedown straps securing wiring harness assembly 3 to junction box internal wiring harness assembly 4 Carefully pull wiring harness assembly out of junction box 5 Open tool box door 2 and remove switch guard 1 page 3 92 3 20 TM 3 4230 228 23 amp P 6 Disconnect wires as follows Connecting Point Wire Number TB3 3 48 TB3 4 47 TB3 5 46 TB3 6 45 TB3 8 44 SWIAI 1 Function Selector Switch 43 SW1A3 2 Function Selector Switch 42 SW1A3 1 Function Selector Switch 41 7 Clean all contact points with cleaning solvent and brush and inspect all parts for serviceability 8 Route replacement wiring harness assembly to control panel components and junction box 4 and connect as indicated in steps 2 and 6 above 9 Reinstall switch guard 1 and close tool box door 2 10 Secure wiring harness to existing harness part of junction box assembly with two tie down straps 11 Close junction box door TM 3 4230 228 23 amp P 3 5 PUMP HEATER ASSEMBLY MAINTENANCE Continued b Replacement of Manometer Assembly NOTE Refer to System Schematic and Wiring Diagram as necessary 1 Remove safety guard assembly page 3 100 2 Open tool box door remove switch guard 1 and disconnect cable 8 wires numbered 17 18 19 and 20 from TB3 contacts 8 9 and 10 3 Carefully pull wires out of tool box 4 Unscrew sensing unit 4 at outlet assembly
21. 8 hp at 4250 rpm COON aenee onana a e a ae aae a a eaS E Air Cooled Fidel r guir di 25 53 vou sa sae ssiede cg cs oh a rE TA E ENE EE a Ew Gasoline and oil 5 gal of gasoline mixed with 1 pt 2 cycle oil TS PC AGO 3555 fsck Se 0 5 Sak Coa ning T bd ase g daa a deda Daan A Cand ono Mens eaS 5 2 cycle oil mixed with gasoline Normal engine rpm MEPE A A A E SE 4250 50 rpm IDOLE oaan Enny OIA L01 aE EE T T E S EET Approximately 0 7 gal 2 7 liter per hour Change 3 1 3 TM 3 4230 228 23 amp P 1 7 EQUIPMENT DATA Continued Table 1 1 Equipment Data Continued Starter type sees Rar E AE R ENE R Ignition system isrener e aa oen a Breaker point gap ccccccececeeeceeeseeeeeeeeeaenes Timing BTDC deiina Spark Plus ssi vector wearin lanier ai ds Spark plug gap eima neinean ERR EIRENE Electrical generator cccccccecec ee ececeeeneeees Power transfer ccceceececeeeeeeceeeeeeeneneees Water pump oo ccececececececeeeeeseeeeeeeeneneeenes Fan Assembly oinaren rr en ae dae och FUEL CAN Engine Fuel Can o ccccccececcececneneeeeeeeeneees Heater Fuel Can ccc ccc ec ec enceeec eee enenes ACCESSORY KIT Accessory Box Suction Hose 1 eneth renea meh vene eee de aged eaeeda ened os Coupling Type semeren ae ee e a aa E a Branch Hose 1 Length esine a e wands ates O Na E Coupling Type E E cas saa E T E CAP ACItY nae A R ewe caus R N ANNA Pressure
22. Belt Tension b Removal c Cleaning and Inspection d Replacement INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Shop Equipment Automotive Org 1 Common SC 4910 95 A74 Materials Required Cleaning Solvent Item 21 App D Equipment Conditions Engine shut down and cold i Starter Removed page 2 47 2 Repair i a Inspection Belt Tension 1 Remove three screws 1 and Ny Drive 2 Remove plastic fan guard 3 2 47 4 Change 3 TM 3 4230 228 23 amp P 2 Check V belt for cracks and proper tension Proper belt tension is 1 8 inch belt deflection between the upper and lower pulleys If V Belt is cracked or otherwise worn replace b Removal The V belt is replaced and adjusted in the following manner 1 Insert a punch through the indexing hole located just above the upper pulley Hold light pressure against the punch and rotate the impeller until the punch slides into the impeller body hole Change 3 2 47 5 TM 3 4230 228 23 amp P 2 15 4 FAN ASSEMBLY MAINTENANCE 215 cc ENGINE Continued b Removal Continued 2 47 6 NOTE Install the same amount of spacers between the pulley halves as found during disassembly Check for proper V belt tension and adjust if necessary 2 3 4 Remove the fan shaft nut 1 using a 17 mm socket Remove the lockwasher 2 heavy backing washer 3 flat washers 4 spacers 6 and pulley
23. C 36 1 0112 Fuel System Burner Assembly cc ccccccccessssssteeeeeeeees C 37 1 and C 38 1 0113 Filter FUG iii eccdsasccied ease cediecd sts tetietelancdstes a tien fotisbotsene C 39 1 0114 Control Panel Assembly ccccececsssscccccceesessseceeeeeeeseeeee C 40 1 and C 41 1 0115 Tool Box Assembly eroriren a derrtadecsdeveieterevedes C 42 1 0116 Water Inlet s32 3c0 SA Ae AR A Ae C 43 1 0117 Burner Assembly c ccccccccssssssscceeeceessessseceeeeeeeesesssaaeeees C 44 1 0118 Heat Exchanger nyereti a te C 45 1 0119 Frame seiri E a E E EEE EEE E ey C 46 1 Accessory Kitee re i aE races ovesuvucctaacesbeveuaneccsaooevses s C 47 1 0201 Suction Hose Assembly cccccccccccssssssssceeeeecessssssseeeeeeeeees C 48 1 020101 Strainer Assembly Suction Hose ccccccccccssssssseeeeeeeeees C 49 1 0202 Branch Hose Assembly ccccesssscccceeessesssececeeeeessssssaeeeees C 50 1 0203 Pressure Hose Assembly ccc cccccccsssessseessceeeeeeessssssaeeeees C 51 1 ii Change 3 0204 Shower Assembly ccccccssssscceceeeeeeesseee 020401 Shower Assembly End Section 020402 Shower Assembly Middle Section 020403 Shower Assembly with Hose Section 0205 Spray Wand Assembly ccccccseeesnee 0206 Injector Assembly cccccccssssssceeeeeeees 0207 Accessory Boxhorn riain iiin Group 03 Deleted Group 04
24. C 9 1 0102 Outlet Assembly a3 icccess Ss bsateadecievss bedsores deciecaitecescenivens cueveseeds C 10 1 0103 Coil Inlet Assembly ccccssssccccccessssssceeeeeeesesssnseeeeeeeeens C 11 1 and C 12 1 0104 Pump Rotary is ree E E RE E AE R C 13 1 0105 Fuel System Engine Assembly cccccccccccsccceeeesessnteeeees C 14 1 0106 Tensioner Assembly Burner Fuel Pump c ceeee C 15 1 0107 Deleted 010701 Deleted 010702 Deleted 01070201 War buretor osar cist entrees ecient een eaten en teas C 22 1 and 0108010201 0108 Engine amp Fan Assembly 0 cccccssscsccceeessssssceeeeeeessessaeeeees C 25 1 010801 Engine ASSembly cc ccccccccccccsssssssscceecceesssssssceeeeeeesssssaeeeees C 26 1 01080101 Clutch Assembly ccccccsssssscccececessesnssceeeeceessesssaeeeeeeeeens C 27 1 01080102A Engine Long Block cccccccsssssssccceceeesssssseeeeecessessseeeeeeens C 28 1 01080102B Engine Long Block cccccccssssssssccececessesssceeeeeesesesseeeeeeees C 29 1 0108010203 Fan Housing Assemblly ccccccccccccsssssssceeeeeeseessseeeeeeeeess C 32 1 0108010204 Engine Short Block c cccccccccccssssscceccesssssssceeeeeeessessseeeeees C 33 1 0109 Junction Box Assembly 0 0 cccecssssscccceceeessessneceeeeeesseeesaee C 34 1 0110 Photocell and Tee Assembly cccccessscccceceessesssceeeeeeeees C 35 1 0111 Hose Assembly Photocell Cooling ccccccccssssssceeeeeeeees
25. Check for loose cracked or improperly adjusted mounts steps a through e page 2 40 Tighten adjust as necessary If mounts are damaged notify your supervisor 2 6 Change 3 TM 3 4230 228 23 amp P Item Interval Items to be No S A B H Inspected Procedure 8 e 20 Engine Cylinder Verify torque Cross torque to 16 18 ft lb page 3 117 Head Nuts 215cc oo TS CU p Check torque initially 20 hours after replacing gasket thereafter biennially Change 3 2 7 TM 3 4230 228 23 amp P 2 4 PREVENTIVE MAINTENANCE CHECKS AND SERVICES PMCS SCHEDULE Continued Item Interval Items to be No S A B H Inspected Procedure 9 200 Burner Assembly Service page 2 79 10 200 Carburetor Service page 2 48 11 Deleted i 12 300 Engine Recoil Starter Remove starter page 2 47 2 and examine for frayed cable worn or inoperable pawls and broken handle Pawls must be extended as shown when cable is pulled Reinstall starter page 2 47 3 7 HOLD STARTER HOUSING STARTER HOUSING 2 8 Change 3 TM 3 4230 228 23 amp P Section III UNIT MAINTENANCE TROUBLESHOOTING PROCEDURES Page Page Introductory Information ccccesseeeeseeeees 2 9 Unit Maintenance Troubleshooting Table 2 12 Symptom Index mirens nir aaee ies 2 9 2 5 INTRODUCTORY INFORMATION a The Symptom Index lis
26. Continued d Remove lag bolts 9 and lid 10 from water tank box 11 e Remove water tank 12 from water tank box 11 f Cut banding straps and undo binding wires 13 of pallet box 14 Remove pallet box 14 from base 15 g Cut banding straps 16 Remove four corner angles 17 and fiberboard cap 18 h Remove dust cover 19 i Remove tape from exhaust of the heat exchanger 20 outlet assembly 21 pressure relief valve 22 carburetor air filter 23 water inlet assembly 24 and photocell tube 25 j Using wiping rags item 17 App D and cleaning solvent item 21 App D remove tape residue from all surfaces WARNING The pump heater assembly weighs over 360 pounds To avoid back injury use a minimum of four people to move the unit When loading onto a transport vehicle use a minimum of eight people or a loading ramp k Using a minimum of four people lift pump heater assembly 26 from base 15 l Install water and fuel pump belts page 2 26 2 2 Change 3 TM 3 4230 228 23 amp P a Kee Cocaine XR RN OX re RO RAMS SAAR NN FRI OR IIR os KORN NDS N ARAO OAAR EEEREN CEOS SRS A ne 17 NNER EARL AAAXNAXANA AOS URN ANNA SS BROAN ROR XXX eR A KKH GN A Bere OAA AOA AOA NiE S OAA N OAOA ONNAN P UN EONA ONON ARA ERON ae lil ORR KK RRR POIANA NN iy 18 Rey Sinn Sa nes RRR SRA W Ss SOUS EN
27. Engine shut down and cold a Repair Replacement of Handles 1 Remove nut 4 bolt 1 washers 2 and 3 and handle 5 There are four handles on the M17 2 Position replacement handle on frame and secure with bolt 1 washers 2 and 3 and nut 4 Change 3 2 85 TM 3 4230 228 23 amp P 2 28 FRAME MAINTENANCE Continued b Repair Replacement of Fuel Can Rack 2 85 0 1 2 3 4 Remove two bolts 4 and washers 3 Slide right side of rack 2 out pivot down on frame and remove rack from frame Remove tubes 1 Clean all parts including mounting surfaces with cleaning solvent and inspect for serviceability Discard unserviceable parts Position tubes 1 and rack 2 on frame and install two washers 3 and bolts 4 Repair Replacement of Storage Box 1 2 3 4 5 6 Remove two nuts 5 washers 6 spacers 7 and bolt 8 Remove three bolts 9 lockwasher 10 and washers 11 Remove storage box 12 from frame Clean all parts including mounting surfaces with solvent and inspect for serviceability Replace if unserviceable Position storage box 12 in frame and secure with three bolts 9 washers 10 and washers 11 Service top portion of box with two bolts 8 washers 6 and nuts 5 making sure spacers are in place between frame and top lip of box Change 3 TM 3 4230 228 23 amp P 2 29 SUCTION HOSE ASSEMBLY MAINTENANCE This task
28. Equipment Condition Suction hose assembly removed from decontaminating apparatus a Replace Suction hose strainer assembly shall be replaced if shroud 3 is unserviceable b Repair 1 Disassembly a Unlatch clamp 2 and remove basket 1 clamp 2 and strainer 10 from shroud 8 b Unscrew retainer 4 and remove gaskets 5 and 7 and filter element 6 c Remove filter mount 8 by unscrewing it from strainer 10 d Remove hook 12 and chain 11 e Remove gasket 9 from strainer 10 f Clean all parts to be retained with clear water and inspect for serviceability Discard unserviceable items 2 88 TM 3 4230 228 23 amp P 2 Assembly a Assemble filter element 6 and gaskets 5 and 7 on filter mount 8 Be sure open end of filter points toward mount Secure with retainer 4 b Screw parts assembled above into strainer 10 c Position strainer 10 gasket 9 and basket 1 on shroud 3 and secure with clamp 2 d Install chain 11 with hook 12 2 89 TM 3 4230 228 23 amp P 2 31 BRANCH HOSE ASSEMBLY MAINTENANCE This task includes a Replace b Repair 1 Disassembly 2 Assembly INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 90 N26 Equipment _ Condition Branch hose assembly removed a Replace Branch hose assembly shall be replaced if either the hose or strainer body 8 is unserviceable b Repair 1 Disassembly
29. Hose 2 Dien Sth rnaen TE a r C TA a es Coupling Type a O cis eave aa os Ses a eso bbc ees a Capacity sii nies eee retss a evi ees aaa ea 1 4 Change 3 Manual recoil Capacitor Discharge Ignition CDI without breaker points Electronic Ignition 0 070 to 0 078 inch 1 8 to 2 0 mm Champion N3C or RN3C 0 035 to 0 040 inch 0 89 to 1 0 mm Flywheel mounted providing 32Vac 4 7 amps Centrifugal clutch with engagement at 2700 rpm Belt driven self priming medium pressure over capacity roller Shrouded axial vane 5 gal 18 9 liters 5 gal 18 9 liters 143 lbs 65 kg 41 8 in 106 cm 20 5 in 52 cm 15 4 in 39 cm 33 ft 10 m Quick Disconnect 3 ft 0 9 m Quick Disconnect 250 psi 50 ft 15 m Quick Disconnect 250 psi TM 3 4230 228 23 amp P Shower 2 sets TY E a E edawennsececoves evened deca ewes obaravecessvesueteradecedeneseuensracecodeegs 3 section with 6 jets each Coupling typ ce dae ccciwedeatea T daa E Gevivesuvaveits Govaeevendere Quick Disconnect Length ien er i a i T saves ontearvedesuvueuesiweresevbvenceetades oeueis 8 ft 2 44 m EJAAN AA STS K 02A EPEE E E E E E E E E S E N Single section trigger actuator Coupling typerne reinen ain RE a i A ri Ras Quick Disconnect Ti i Ot menare ia ARA E EE E AEA E a couesestgerese 3 ft 0 9 m AA T N N T Adjustable fan stream Injector 1 TYP ra n E EOR R E A E E EO ERR 80 20 Siphon 4 parts water 1 part decontaminant Coupling Ty perisan e Rede
30. Materials Required Sealant Pipe Item 18 App D Equipment Conditions Engine shut down and cold a Replace 1 Removal a Remove drive side panel 1 page 2 32 b Remove fuel pump belts page 2 26 and water pump belt page 2 26 c Remove four bolts 3 lockwashers 4 washers 5 and panel 2 d Scribe position of pump on frame to make reinstallation easier wm e Remove bolt 14 and washer 13 f Remove pulley 12 and key 6 ma Disconnect hose 7 at coil inlet assembly swivel and return hose not shown at 45 elbow swivel 11 g h wm Elevate pump and heater assembly at pump end to gain access to pump mounting hardware and remove four bolts 10 washers 8 lockwashers 9 and water inlet assembly 2 74 Change 3 TM 3 4230 228 23 amp P ae ae AS SMX one Meant Miia ARR SN eR P ANANN R OOOO ANANI N AONA NOS ANUN OONAN Che NaN s era N LXIX RRS S DI XX x BN w x W D S 5 Change 3 2 75 TM 3 4230 228 23 amp P 2 25 WATER INLET ASSEMBLY MAINTENANCE Continued 2 Installation a Position water inlet assembly on pump and heater assembly frame using scribe lines marked at disassembly and secure with four washers 8 lockwashers 9 and bolts 10 b Install pulley 12 with key 6 washer 13 and bolt 14 NOTE If belt alignment appears
31. Remove four screws 3 and four washers 2 securing the recoil starter 1 using a 5mm allen wrench 3 Remove recoil starter 1 2 47 2 Change 3 TM 3 4230 228 23 amp P b Cleaning and Inspection 1 Clean starter 2 Inspect starter for abraded or cut rope dented or warped housing worn pawls and broken or split handle Replace starter if rope is cut or abraded housing is dented or warped or pawls are worn c Repair Repair of the starter is limited to replacement of the handle 1 Pull starter rope out approximately 18 inches and tie a slip knot 4 at housing 2 Push rope 5 through handle 6 approximately 6 inches and remove reinforcement 7 3 Install new handle by threading rope through center Thread rope through reinforcement and tie a knot in the end of rope Position reinforcement in end of rubber handle Handle can be replaced installed with starter installed on engine or removed 4 Untie slip knot and check spring tension by pulling on handle d Installation 1 Position starter on engine and align scribe marks 2 Secure with four screws 3 and washers 2 Aas ASSEN GEER RANK RNS OOA RNR AANA wire reams AR BR AIR y X REN RRS ANRE Sey RRR A ARERR SA SERRE e OSS So ROE gt KX XQ ies Change 3 2 47 3 TM 3 4230 228 23 amp P 2 15 4 FAN ASSEMBLY MAINTENANCE 215 cc ENGINE This task consists of Repair a Inspection
32. SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Riveter Blind Hand Item 9 Page B 7 Materials Required Rags Wiping Item 17 App D Cleaning Solvent Item 21 App D Equipment Conditions All items removed from tool box Engine shut down and cold Repair NOTE Repair of tool box is limited to cover catch and latch replacement a Disassembly 1 2 3 4 5 Open tool box Remove two screws 3 and nuts 7 Remove cover 6 Remove catch 2 by cutting off rivet 1 heads with cold chisel Remove latch 5 by removing rivets 4 b Assembly 1 2 3 4 5 2 72 Clean all parts with cleaning solvent and rags and inspect for serviceability Install catch 2 with two rivets 1 using riveter Install latch 5 with two rivets 4 Position cover 6 on tool box frame and secure with two screws 3 and nuts 7 Screws function as hinge do not over tighten Close cover TM 3 4230 228 23 amp P Change 3 2 73 TM 3 4230 228 23 amp P 2 25 WATER INLET ASSEMBLY MAINTENANCE This task includes a Replace 1 Removal 2 Installation b Repair 1 Replacement of Hose Assembly and Coupling 2 Cleaning INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Shop Equipment Automotive Org 1 Support SC 4910 95 A73 Shop Equipment Automotive Org 1 Common SC 4910 95 A74
33. TE OTOT M ES A Seiswieh Sonat doccevns dasovek feccauns discon feauuun duno seauevens Group 98 Bulk Materials 3 2secss ccccects Scdcutedincei A T Section III Special TOS cccsesieadercgceveceesvencersdevveeeesdenceiedsavessendergecedseveveccees Section IV Cross Reference Indexes cccssssccceesececeesneeecessnneeeeenees National Stock Number Index cccccccesssssstceeeeeeeeeeeseee Part Number Index anann inin E A APPENDIX D EXPENDABLE DURABLE SUPPLIES AND MATERIALS LIST Section I Tnitroducti on nnise i a i Section II Expendable Durable Supplies and Materials List APPENDIX E ILLUSTRATED LIST OF MANUFACTURED ALTERED ITEMS APPENDIX F WIRING DIAGRAM Jocs iii ii a a ALPHABETICAL INDEX ainn a A R a a TM 3 4230 228 23 amp P Change 3 Index 1 TM 3 4230 228 23 amp P HOW TO USE THIS MANUAL Be sure to read all Warnings before using your equipment This manual contains Unit and Direct Support Maintenance instructions for the Decontaminating Apparatus Power Driven Lightweight M17 and consists of the usual introductory information 3 chapters 6 appendices and an index e The introductory information includes a table of contents instructions for preparing EIRs and Warning notes e Chapter 1 introduces you to the equipment and gives you information such as weight height length generally used abbreviations cross reference information and princip
34. as a CPC problem 1 2 Change 3 TM 3 4230 228 23 amp P Section II EQUIPMENT DESCRIPTION AND DATA Page Differences Between Models 0 cccceeee 1 2 1 Equipment Data cccccccccccssssssscceeeceeesesssaeeeees 1 3 1 6 1 DIFFERENCES BETWEEN MODELS a The M17 series Decontaminating Apparatus has been issued in four configurations The M17 and M17A1 models were equipped with 197cc JLO engines and with a 1580 gallon or 3000 gallon water tank respectively The M17A2 and M17A3 models were equipped with 215 cc Cuyuna engines and with a 1580 gallon or 3000 gallon water tank respectively All M17 and M17A1 models should have been modified by applying the Cuyuna engine conversion kit Both the JLO engine and the 1580 gallon water tank are no longer supportable all M17 series Decontaminating Apparatus systems should now match the M17A3 configuration 215 cc Cuyuna engine and 3000 gallon water tank Check your equipment and be sure that these configuration changes have been made and that your property book manager lists the proper NSN for the M17A3 4230 01 346 3122 b The configuration of the 215 cc engine fan housing and ignition trigger components differs between engines with serial numbers below 63247 and those with serial numbers 63247 and higher These differences are annotated in the maintenance procedures and in Appendix C Change 3 1 2 1 1 2 2 blank TM 3 4230 228 23 amp P 1 7 EQUIPMENT D
35. eh el oR A E a T AE E ecbveeh s Quick Disconnect Water Tank M1743 Type seesama Collapsible self erecting rubberized fabric Capa e eUT 3000 gal 11 400L Weight Empty cccccssssseeeeeeens 130 lbs 59 kg Weight Full oo ccececescessteeeeteeeenes 25 180 lbs 11 445 kg Dimensions containerized L x W x H 47 5 x 28 5 x 23 Dimensions set up amp filled Height amp diameter 4 6 x 12 3 For additional information on the 3 000 gallon water tank refer to TM 10 5430 233 12 amp P Section III PRINCIPLES OF OPERATION Page Principles of Operation of Air Water Heat Exchanger Enginevand Heater Fuel Systems smir eoi Seaevvel coders da divves dentoses A A e E Seniors ioautorsi Seleceival deus 1 5 Electrical System Principles of Operation cccccccccssssssccceeceecesssessssceeecccsesesssaeeeeeecessessaaeeeeeeeeseneeeeeeeeeeeennea 1 5 1 8 PRINCIPLES OF OPERATION OF AIR WATER HEAT EXCHANGER ENGINE AND HEATER FUEL SYSTEMS Refer to TM 3 4230 228 10 Operator s Manual for Decontaminating Apparatus Power Driven Lightweight M17 M17A1 M17A2 and M17A38 for the principles of operation for these systems 1 9 ELECTRICAL SYSTEM PRINCIPLES OF OPERATION a Engine and EMERGENCY STOP Switch The engine See Electrical Control System Block Diagram page 3 121 produces the electrical power necessary to operate the system The engine can be stopped quickly by using the ENGINE STOP switch which when actuated grounds out th
36. flow through one jet If both wands showers or injector are on both switches will close causing fuel to flow through both fuel nozzles j Solenoid Fuel Valves These valves are designed to open when voltage is applied at their input terminals Fuel cannot be delivered to the burners unless one or both valves are energized k Electrical Control Module The electrical control module is enclosed by the junction box It is a potted throw away module that contains the rectifier diodes relays transistors and other electronic components that control the functions of the external electrical components 1 6 TM 3 4230 228 23 amp P CHAPTER 2 UNIT MAINTENANCE INSTRUCTIONS Section I Service Upon Receipt Section II Preventive Maintenance Checks and Services PMCS Section III Unit Maintenance Troubleshooting Procedures Section IV Unit Maintenance Procedures Section V Preparation for Storage or Shipment Section I SERVICE UPON RECEIPT Page Page Unpacking Equipment cceescceeeseeeeeeeenees 2 1 Checking Unpacked Equipment 0 2 2 2 2 1 UNPACKING EQUIPMENT a Cut banding straps and undo binding wires 1 of pallet box 2 Remove pallet box 2 from base 3 b Cut banding straps 4 Remove twelve corner angles 5 and plastic sheet 6 c Remove two boxed fuel cans 7 and accessory kit 8 from base 3 Change 3 2 1 TM 3 4230 228 23 amp P 2 1 UNPACKING EQUIPMENT
37. half 5 Remove spacers 6 inner pulley half 7 and washer 8 Cleaning and Inspection 1 Clean all washers spacers and pulley halves in solvent Item 22 App D 2 Inspect pulley halves washers and spacers for wear corrosion indentations Replace defective components 3 Inspect V belt 9 for cracks or excessive wear Replace if cracked or worn Replacement 1 Replace washer 8 inner pulley half 7 and spacers 6 2 Replace V belt 9 by slipping new belt over lower pulley half and positioning against upper pulley half NOTE Remember to rotate engine crankshaft while tightening the fan shaft nut This will allow the belt to work its way out to the outer diameter of the pulley 3 4 5 6 7 8 If not already done remove the punch from the fan housing Reinstall the outside pulley half 5 flat washers 4 backing washer 3 lockwasher 2 and nut 1 Slowly tighten the nut While tightening the nut rotate the engine crankshaft by turning the starter carrier 10 Check V belt 9 for proper tension Proper belt tension is 1 8 inch belt deflection midway between upper and lower pulleys when pressure is applied If belt adjustment is required remove or add spacers 6 between pulley halves Add spacers 6 to loosen belt Remove spacers 6 to tighten belt With the belt located at the outer diameter of the pulley reinstall the punch to secure the shaft Torque the nut 20
38. hoses into the sodium carbonate solution container and circulate the solution for several more minutes FUNCTION SELECTOR in OFF position Do not press OVERRIDE switch Throttle engine back until water pump stops then transfer suction hose to the second 32 gallon can fill with clear water Return throttle to full power and lift out pressure hoses to observe flow When the sodium carbonate solution remaining in the the system is completely pumped out as seen by a change of color and a brief stop of flow from the pressure hoses transfer the high pressure hoses to the clear water can and operate system for an additional 5 minutes FUNCTION SWITCH in OFF position Do not press OVERRIDE switch Shut down unit and inspect for scale in outlet assembly and branch hose strainer If descaling is not adequate repeat steps a through s When entire descaling procedure is completed slowly add the sodium carbonate solution to the descaling solution The descaling solution will froth and foam as the sodium carbonate solution is added and will neutralize When solution is completely neutralized dispose of solution in accordance with local SOP TM 3 4230 228 23 amp P 2 28 FRAME MAINTENANCE This task includes a Repair Replacement of Handles b Repair Replacement of Fuel Can Rack c Repair Replacement of Storage Box INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Equipment Condition
39. includes a Replace b Repair 1 Disassembly 2 Assembly INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Equipment Condition Suction hose assembly removed from unit a Replace Suction hose shall be replaced if hose 3 is unserviceable b Repair NOTE If removal of coupling stringer is required it may be necessary to cut off a section of hose just beyond coupler end approximately 2 inches in length 1 Disassembly a Remove gasket 6 b Loosen nut 4 slide clamp 7 back and remove coupling 5 from hose 8 c Remove clamp 7 d Loosen nut 2 and remove strainer assembly 1 e Remove clamp 8 f Clean all parts with water and inspect for serviceability Discard unserviceable items 2 85 1 blank 2 86 Change 3 TM 3 4230 228 23 amp P 2 Assembly NOTE If clamps 8 and 7 are replaced clamp nut delivered with clamps shall be discarded and replaced with nut item 3 figure C 48 App C a Position clamps 8 and 7 on replacement hose 8 b Install strainer assembly 1 and tighten nut 2 c Install coupling 5 and tighten nut 4 d Install gasket 6 Change 3 2 87 TM 3 4230 228 23 amp P 2 30 SUCTION HOSE STRAINER ASSEMBLY MAINTENANCE This task includes a Replace b Repair 1 Disassembly 2 Assembly INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26
40. on access cover 5 with nut 4 and two nuts 9 Ensure burner nozzle holder assembly is installed perpendicular to the access cover surface b Install nozzle 10 on burner nozzle holder assembly 3 and install assembly on access cover 5 with nut 4 and two nuts 9 c Install access cover 5 with assembled components on burner housing 11 with three bolts 8 lockwashers 7 and washers 6 Change 3 TM 3 4230 228 23 amp P NOTE Nozzles must be centered in burner housing ports as shown If realignment is necessary loosen bolts 8 and shift access cover 5 until nozzles are centered in ports Retighten bolts 8 d Connect voltage tripler ground wire 17 and install assembled burner assembly on heat exchanger with eight bolts 14 lockwashers 13 and washers 12 e Connect check valves 16 to burner assembly as tagged f Connect hose assemblies 15 to burner assembly as tagged g Install igniter plug 1 h Connect voltage tripler plug wire 18 to igniter plug 1 BURNER HOUSING PORT NOZZLES Change 3 2 81 TM 3 4230 228 23 amp P 2 27 HEAT EXCHANGER MAINTENANCE This task includes Service Descaling INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Materials Required Brush Varnish Item 4 App D Cleaning Solvent Item 21 App D Polyurethane Coating Item 15 App D Garbage Can 32 gallon 2 each or equival
41. task consists of Repair a Disassembly and Removal b Assembly and Installation c Adjust INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Shop Equipment Automotive Org 1 Common SC 4910 95 A74 Materials Required Cleaning Solvent Item 21 App D Brush Varnish Item 4 App D Sealant Pipe Item 18 App D Adhesive RTV Item 2 App D Compound Locking Item 6 App D Equipment Conditions Engine shut down and cold Repair a Disassembly and Removal 1 2 3 4 5 6 NOTE Heating of components may be necessary to break threaded joints Disconnect flow switch 9 wires from junction box assembly TB1 7 wire 22 TB1 8 wire 23 and TB1 1 wire 21 and carefully pull out of junction box Unscrew flow switch core from main body of flow switch assembly 9 by unscrewing nut 22 Identify nut 22 with bottom flow switch FS1 Disconnect flow switch 7 wires from junction box assembly TB1 10 wire 26 TB1 9 wire 25 and TB1 2 wire 24 Unscrew flow switch core from main body of flow switch assembly 7 by disconnecting nut 21 Identify nut 21 with top flow switch FS2 Disconnect hose assembly 24 from 45 elbow 12 at swivel and disconnect hose assembly 23 at water inlet swivel Loosen nut 30 and remove remaining components of coil inlet assembly as a unit NOTE Before further disassembly note approximate ali
42. ventilated area Avoid prolonged breathing of fumes Keep solvent away from flames Do not use in excessive amounts and avoid skin contact 2 21 7 blank 2 22 Change 3 TM 3 4230 228 23 amp P c Tag wires and unsolder from switch 9 using soldering iron d Remove nut 4 lockwasher 4A switch 9 and tabwasher 9A e Install replacement switch on guard and connect wires to terminals as indicated or as tagged using soldering iron and solder SWITCH CONTACT TO 1 Wire 39 TB3 9 2 Wire 40 TB3 10 f Reinstall switch guard 1 with screws 2 and 8 washers 5 and 6 and lockwashers 3 and 7 6 Hh ORE K oe ONIN Sows sie yy o A X a Z 9 ONN W is Change 3 2 25 TM 3 4230 228 23 amp P 2 9 PUMP HEATER ASSEMBLY MAINTENANCE Continued 2 Replacement of Fuel Pump Belt a Remove drive side panel 10 page 2 32 to gain access to belt b Push down on right side of pump assembly using nipple 15 as lever to release pressure on belt as the pump pivots on its mounting bolt c Remove belt 11 d Install replacement belt 11 e Reinstall panel 10 3 Replacement of Water Pump Belts NOTE Always replace both belts even if only one is worn or damaged a Remove drive side panel 10 for access page 2 32 b Remove fuel pump belt as above c Loosen two screws 13 and slide tensioner assembly 14 to the left to release belt tension d Remove water p
43. with two rivets 10 using hand riveter b Install retaining rings 3 and chain 4 c Install latch 2 with two rivets 1 d Install hinge 6 with nine rivets 5 e Install handle 8 with fourteen rivets 7 2 99 TM 3 4230 228 23 amp P All data in paragraph 2 37 pages 2 100 and 2 101 deleted 2 38 TOOL KIT MAINTENANCE This task includes Repair INITIAL SETUP Equipment Condition Tools removed from accessory box Repair Repair consists of replacing damaged or missing items in the tool kit NOTE Appendix C page C 60 of this manual provides detailed information about each tool 2 102 Change 3 TM 3 4230 228 23 amp P Section V PREPARATION FOR STORAGE OR SHIPMENT Page Page Preparation for Long Term Storage In Administrative Storage Inspection 2 107 OF Shipment seie ae a A 2 103 Removal from Administrative Storage 2 107 Preparation for Administrative Storage 2 107 E 2 39 PREPARATION FOR LONG TERM STORAGE OR SHIPMENT a Perform all outstanding PMCS procedures b Iffreezing temperatures are expected perform Shutdown in Freezing Weather procedure TM 3 4230 228 10 steps 1 through 19 i c Remove fuel pump and water pump belts page 2 26 Place all belts in tool box d Prepare engine for long term storage as follows 1 Prepare a separate fuel mixture consisting of 3 parts gasoline and 1 part preservative oil item 12 App D Do not ad
44. 22 ft lbs Reinstall fan guard 3 and secure with Ny Drive 2 and three screws 1 Reinstall recoil starter page 2 47 3 Change 3 TM 3 4230 228 23 amp P UNASSEMBLED ASSEMBLED Change 3 2 47 7 TM 3 4230 228 23 amp P 2 16 CARBURETOR MAINTENANCE Deleted Adjust Engine Speed Idle Speed Adjustment Replace Repair Bf This task consists of a INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Shop Equipment Automotive Org 1 Common SC 4910 95 A74 RPM Indicator Item 5 Figure C 61 Materials Required Brush Varnish Item 4 App D Cleaning Solvent Item 21 App D Oil Lubricating Item 11 App D Equipment Conditions Engine shut down and cold a Deleted All data on pages 2 49 and 2 50 deleted 2 48 Change 3 TM 3 4230 228 23 amp P b Adjust Engine Speed NOTE It may be necessary for two people to do this task Dial indications must be multiplied by 1000 The number 4 represents 4000 rpm 1 Adjust dial 10 on rpm indicator 11 so that dial is between 4200 and 4400 rpm Wire 9 should now be extended approximately 3 inches 1 1 Ensure water source is connected to water inlet coupling 2 Start engine and move throttle to MAX open position 3 With engine operating at maximum speed and with at least 100 psi on water gauge hold rpm indicator 11 firmly against engine starter as shown 4 While holding
45. 230 228 10 for tiedown procedures 2 106 Change 3 TM 3 4230 228 23 amp P 2 40 PREPARATION FOR ADMINISTRATIVE STORAGE Preparation of this equipment for administrative storage shall be identical to that provided for long term storage or shipment page 2 103 2 41 IN ADMINISTRATIVE STORAGE INSPECTION Perform monthly walk around visual inspection of decontaminating apparatus Inspect for corrosion or other deterioration and missing or damaged parts 2 42 REMOVAL FROM ADMINISTRATIVE STORAGE Removal from administrative storage shall consist of performing Service Upon Receipt procedures page 2 1 Change 3 2 107 2 108 blank TM 9 4230 228 23 amp P CHAPTER 3 DIRECT SUPPORT MAINTENANCE INSTRUCTIONS Section I Direct Support Maintenance Troubleshooting Section II Direct Support Maintenance Repair Procedures Section I DIRECT SUPPORT MAINTENANCE TROUBLESHOOTING Page Page Introductory Information cccccceeeeeee 3 1 Troubleshooting Table ccccssssccccceessssssneeeees 3 3 Symptom Index ceceeessscccecceesssssseeeees 3 2 3 1 INTRODUCTORY INFORMATION a The Symptom Index lists the common malfunctions which you may find during the operation or maintenance of the Decontaminating Apparatus or its components Look at the Malfunction List until you find the one that you are having then go to the page listed and perform the troubleshooting test or inspections listed therein
46. 3 Secure spring 5 to fuel pump assembly with screw 7 and washer 6 4 Reinstall fuel pump belt page 2 26 5 Reinstall drive side panel page 2 32 2 38 TM 3 4230 228 23 amp P TM 3 4230 228 23 amp P 2 14 ENGINE AND FAN ASSEMBLY MAINTENANCE This task consists of Inspect Repair Transformer Replacement a Removal b Cleaning c Replacement INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Materials Required Cleaning Solvent Item 21 App D Plastic Tie Wraps Item 23 App D Equipment Conditions Engine shut down and cold Inspect Inspection of engine and fan assembly is limited to inspection of engine mounting bolts general engine fan assembly condition exhaust hose and ground wire connections a Inspect exhaust hose 3 for cracks and deterioration Check to see if bolt 2 and nut 1 are in place and tight b Check if ground wire 5 is in place one position only and four nuts 7 washers 6 and bolts 4 are in place and properly installed Bolts should protrude about 3 16 inch at the bottom as shown and nut 7 should be tight c If nut 7 is loose or bolt 4 is improperly installed loosen nut 7 screw bolt 4 in or out until the 3 16 inch clearance is obtained and tighten nut while holding bolt with a second wrench to keep it from turning d Check to see that eight bolts 10 washers 8 and lockwashers 9 are pres
47. 3 5 VDC is not measured With system operating in WANDS and wands connected check High Pressure Cut Out HPCO switch by measuring DC voltage at TB3 8 with ground at TB1 3 Replace manometer assembly page 3 22 switch if 3 5 VDC minimum is not measured i Recheck all wiring see System Schematic and Wiring Diagram page F 1 Replace control module page 3 82 if trouble persists Change 3 3 13 TM 3 4230 228 23 amp P 3 3 DIRECT SUPPORT MAINTENANCE TROUBLESHOOTING TABLE Continued Table 3 1 Direct Support Troubleshooting Continued MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 9 LOW OR ERRATIC BURNER OUTPUT Step 1 Check for inoperability of the fuel valve assembly Replace valve if defective page 3 96 Step 2 Check for defective flow switch FS2 Flow switch is checked as in MALFUNCTION 8 step 4 page 3 12 Note that this is the top switch FS2 Replace switch if defective connect terminals as follows Wire 24 to TB1 2 Wire 25 to TB1 9 Wire 26 to TB1 10 If trouble persists replace fuel valve assembly page 3 88 10 BURNER CYCLES EXCESSIVELY NOTE Burner cycling is normal in WANDS but can be reduced in showers by adjusting fuel valve assembly Step 1 Check for inoperable fuel valve assembly valve is inoperable if burn rate cannot be controlled Replace fuel valve assembly page 3 88 If trouble persists replace one or both check valves page 3 86 3 14 Change 3 TM 3 4230 228 2
48. 3 amp P MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 11 TEMPERATURE TOO HIGH SHOWERS Replace Low Temperature Cutout LTCO switch if this condition exists Step 2 page 3 26 describes removal and step 5 page 3 28 installation of switch 12 TEMPERATURE TOO HIGH WANDS ONLY Replace High Temperature Cutout HTCO switch if this condition exists Step 3 page 3 26 describes removal and step 6 page 3 28 installation of switch 13 BURNER CONTINUES TO OPERATE With system operating close fuel control valve assembly fully counterclockwise TEMPERATURE If burner continues to operate replace fuel control valve assembly page 3 88 IPAR FUEL If burner goes out replace one or CONTROL VALVE both check valves page 3 86 PRESSURE GAGE PA 14 WATER PRESSURE GAGE INOPERATIVE NOTE Pressure gage is an integral part of manometer assembly Replace manometer assembly page 3 22 if this condition exists Change 3 3 15 TM 3 4230 228 23 amp P 3 3 DIRECT SUPPORT MAINTENANCE TROUBLESHOOTING TABLE Continued Table 3 1 Direct Support Troubleshooting Continued MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 15 NO HEATING SHOWERS Only Step 1 Replace Low Temperature Cutout LTCO switch if this condition exists Step 2 page 3 26 describes removal and step 5 page 3 28 installation of switch Step 2 Refer to System Schematic and Wiring Diagram page F 1 and check functio
49. 5 September 1989 is changed as follows 1 Remove old pages and insert new pages as indicated below 2 New or changed material is indicated by a vertical bar or asterisk in the margin of the page 3 Added or revised illustrations are indicated by a vertical bar adjacent to the illustration or miniature pointing hands in the affected areas Remove Pages a None i through 1 6 2 1 through 2 22 2 25 and 2 26 2 31 and 2 32 2 35 through 2 82 2 85 through 2 88 2 95 through 2 105 2 106 blank 3 1 through 3 20 3 23 and 3 24 3 27 through 3 86 3 89 through A 1 A 2 blank B 3 through B 10 C 1 through C 61 1 C I 1 through C I 40 D 1 through D 3 D 4 blank Insert Pages a b blank A and B i through 1 6 2 1 through 2 22 2 25 and 2 26 2 31 and 2 32 2 35 through 2 82 2 85 through 2 88 2 95 through 2 107 2 108 blank 3 1 through 3 20 3 23 and 3 24 3 27 through 3 86 3 89 through A 1 A 2 blank B 3 through B 9 B 10 blank C 1 through C 61 1 C I 1 through C I 15 C I 16 blank D 1 through D 3 D 4 blank Remove Pages E 1 through E 5 E 6 blank Index 1 through Index 6 Index 7 blank None Sample DA Form 2028 DA Form 2028 2 Front Cover Back Cover TM 3 4230 228 23 amp P C3 Insert Pages E 1 and E 6 Index 1 through Index 6 Instructions for Electronic 2028 Sample DA Form 2028 DA Form 2028 Front Cover Back Cover 4 File this change sheet in front of the publication for
50. 6 Maintenance ca aseseiiieanr innia ra 2 40 Suction Hose Strainer Assembly Engine Assembly Maintenance 2 42 Maintenance ccceessccceeeteeeeeeeeeeeeees 2 88 Engine Ignition System Branch Hose Assembly Maintenance 2 90 Maintenance 215cc engine 05 2 47 0 Pressure Hose Assembly Maintenance 2 91 Starter Maintenance Showers Assembly Maintenance 2 92 215cc engine cceccccceessesstteeeeeeeeeseeeeee 2 47 2 Spray Wands Maintenance c008 2 94 Fan Assembly Maintenance Injector Assembly Maintenance 2 96 215cc engine cceccccesssessteeeeeeeeesseeee 2 47 4 Accessory Box Maintenance 006 2 98 Carburetor Maintenance ccsccceeees 2 48 Tool Kit Maintenance sosser 2 102 Junction Box Assembly Maintenance ccccscccceesseceeeseeeeeesnees 2 58 Photocell and Tee Assembly Maintenance saccone 2 60 Photocell Cooling Hose Assembly Maintenance ccccceee 2 62 Burner Fuel System Maintenance 2 64 2 8 GENERAL a The maintenance procedures in this manual are to be performed by personnel with MOS of 63J Quartermaster and Chemical Equipment Repairer b The maintenance procedures in this section are to be performed by a Unit Maintenance technician or by the user under Unit Maintenance supervision WARNING Cleaning solvent is toxic and flammable Use only in well
51. 9 TM 3 4230 228 23 amp P 3 3 DIRECT SUPPORT MAINTENANCE TROUBLESHOOTING TABLE Continued Table 3 1 Direct Support Troubleshooting Continued MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 7 WATER DISCHARGE THROUGH PRESSURE RELIEF VALVE Step 1 Check for pressure and temperature indications on control panel Normal operating temperature is 50 C in WANDS using injector 43 C in SHOWERS and 117 C in WANDS using wands Normal operating pressure is 130 150 psi in WANDS wands connected 45 50 psi in SHOWERS and 60 70 psi in WANDS when using injector a Ifnormal pressure and temperatures are indicated replace pressure relief valve as follows 1 Unscrew tube 2 from pressure relief valve 1 2 wm Remove pressure relief valve 1 3 wm Install replacement valve 1 with sealant item 18 App D 4 wm Install tube 2 with sealant item 18 App D b If high temperature above 130 C and high pressure above 230 psi are indicated remove High Temperature Cut Out HTCO switch page 3 26 step 3 and install replacement switch page 3 28 step 6 c Ifhigh pressure above 230 psi and normal temperature are indicated replace pressure regulating valve 3 page 3 31 3 10 Change 3 TM 3 4230 228 23 amp P MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 8 NO BURNER FUNCTION NO IGNITION WARNING High voltage is present on this equipment Inju
52. AFT KEY WASHER e Position replacement key on ra BOLT shaft and install pulley Secure A with bolt and washer and install a water pump belts page 2 26 xX Step 3 Check for missing damaged gasket in suction hose coupling Replace missing damaged gasket ORS CS aN AR XXX RAY XX SD RSD ein es Zs SERRA ON om SW ys ie SUCTION HOSE COUPLING 4 Change 3 2 13 TM 3 4230 228 23 amp P 2 7 UNIT MAINTENANCE TROUBLESHOOTING TABLE Continued MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 5 NO WATER FLOW NO PRESSURE Continued Step 4 Remove inlet panel and repair water inlet assembly by removing dirt and debris from pump page 2 78 If internal damage is noted replace water inlet assembly page 2 74 Notify Direct Support Maintenance if trouble persists 6 LOW WATER FLOW INABILITY TO DEVELOP PRESSURE Step 1 Check for loose damaged water pump belts and belt tensioner assembly Replace belts page 2 26 if damaged or missing If belts are loose adjust water pump belts page 2 31 or repair and adjust tensioner page 2 31 Step 2 Check for missing damaged gasket in suction hose coupling step 3 page 2 13 Replace defective missing gasket Step 3 Remove inlet panel and repair water inlet assembly by removing dirt and debris from pump page 2 78 If internal damage is noted replace water inlet assembly page 2 74 Step 4 Check adjust engine speed page 2 51
53. ALETE OA Datat aT AEE E 3 115 Clutch Assembly Maintenance 215cc Engine necemo anr 3 120 Engine and Kit Installation 215cc Engine aehan n 3 123 This section contains the procedures for maintaining the components which are the responsibility of Direct Support Maintenance See above index WARNING Be sure you read all WARNINGS on the WARNING pages before you start your maintenance procedures Cleaning solvent is toxic and flammable Use only in a well ventilated area Avoid prolonged breathing of fumes Keep solvent away from flames Do not use in excessive amounts and avoid skin contact Change 3 3 19 TM 3 4230 228 23 amp P 3 5 PUMP HEATER ASSEMBLY MAINTENANCE This task consists of Repair a Replacement of Wiring Harness Assembly b Replacement of Manometer Assembly c Replacement of Fuel Pump Drive INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Materials Required Cleaning Solvent Item 21 App D Brush Varnish Item 4 App D Tiedown Straps Item 23 App D Equipment Condition Engine shut down and cold a Replacement of Wiring Harness Assembly NOTE Refer to System Schematic and Wiring Diagram page F 1 as necessary 1 Remove safety guard assembly page 3 100 2 Gain access to terminal boards TB1 and TB2 in junction box 4 and disconnect wires as follows Connecting Point Wire Number TB2 3 41 TB2 4 42 TB2 11 48 TB2 12 47 TB2 13
54. ATA Refer to Table 1 1 Table 1 1 Equipment Data M17A3 DECONTAMINATING APPARATUS Pump Heater WINE 55 sonevsaeaswae bere e E a E ste nenseesdanibedsiy E iene danas E E E de 370 lbs 168 kg Prem Ot aie e eke ets e e e e Nato A file dns A e E E SNS ole p 42 2 in 102 cm Width genoier asee oin aE ee RE RI NG E A E a z 23 2 in 59 cm FICTION G x irssuncaciatoadiucast e a E E TA E E ESN x 33 9 in 86 cm Heater Typen a a e aloes a aa A Ea a Aa E E OR T oeaces 3 Convection jet fired igniter plug ignition He at output 20 esecilgeudth od4 Mawonee ed SoawedagdaGed Sous bige molasgalquidhelciabletoablasaue ys 700 000 Btu 180 000 Kilocaries per hour Primary fyel oaiue oe a a aa a a a e Cesk 3 Leaded or unleaded regular gasoline Alternate fuel sdunimime aea AEn aaa hand EEEE aE TEE AE AAEE EAN Diesel DF2 Jet Fuel JP4 or kerosene Fuel consumption sini eshs iea dee cdc EE T ANR E e a a AEA Approximately 9 gal 84 Liter per hour 1 4 01 E EEE RT EE en Se i Single electrode spark producing element Fuel p mp reeeo ieee a aE tegen E E s E A E N EEA aE Belt Driven gear type Engine 215 cc Cuyuna WV POs E E E E EE oeaweden dat oes G4 Sad wh nuaiae dey dled eae E z Single cylinder 2 cycle Displacement oraina E RE O oe EEE ER bia hens T S aN 13 1 cu inch 215 cc Compression ratio morrar oer a E aa sea aa aE EARST BY wa Sad E R 6 5 to 1 Output power kiga relaterat ken aa a daaieda tones dacwutsAvadabuaeoatedes
55. Continued NOTE Prior to installing burner assembly refer to page 2 80 para b 3 for proper alignment of nozzles in burner housing 7 Reinstall burner assembly page 2 81 steps 3 d through 8 g i b Replace 1 2 3 Removal and Disassembly a Tag and disconnect hose assemblies 15 from burner assembly b Tag and disconnect check valves 16 c Disconnect voltage tripler plug wire 18 from igniter plug 1 and remove igniter plug d Remove eight bolts 14 lockwashers 13 washers 12 and voltage tripler ground wire 17 e Remove three bolts 8 lockwashers 7 washers 6 and access cover 5 f Remove four nuts 9 and burner nozzle holder assemblies 3 g Remove two nuts 4 from burner nozzle holder assemblies 3 h Remove nozzles 2 and 10 from burner nozzle holder assemblies 3 Cleaning and Inspection a Clean all components with cleaning solvent and brush Nozzles should be disassembled see page 2 79 Do not interchange parts b Inspect igniter plug 1 for burned electrode cracks or stripped threads c Inspect all other components for physical damage and or stripped threads Discard defective components Assembly and Installation CAUTION Make sure nozzles are installed correctly Nozzle 2 bears markings 4 00 30 BPS and nozzle 10 is marked 6 00 60 BPS 2 80 a Install nozzle 2 on burner nozzle holder assembly 3 and install assembly
56. DRAFT C3 TM 3 4230 228 23 amp P TECHNICAL MANUAL UNIT AND DIRECT SUPPORT MAINTENANCE MANUAL NTRODYCTION INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST INSTRUCTIONS FOR DECONTAMINATING APPARATUS POWER DRIVEN LIGHTWEIGHT M17 MAINTENANCE NSN 4230 01 251 8702 WITH 1580 GAL WATER TANK M17A1 MAINTENANCE NSN 4230 01 303 5225 CHART AG WITH 3000 GAL WATER TANK M17A2 NSN 4230 01 346 1778 REPAIR PARTS AND WITH 1580 GAL WATER TANK M17A3 NSN 4230 01 346 3122 a TeENDAGEE WITH 3000 GAL WATER TANK DURABLE SUPPLIES AND MATERIALS LIST ALPHABETICAL INDEX as See inside cover for warning distribution statement and destruction notice 15 SEPTEMBER 1989 DISTRIBUTION STATEMENT C Distribution authorized to U S Government agencies and their contractors to protect technical or operational information This determination was made on August 27 1987 Other requests for this document will be referred to Site Manager Soldier and Biological Chemical Command RI ATTN AMSSB RSO SDM RI 1 Rock Island Arsenal Rock Island IL 61299 7390 EXPORT CONTROL NOTICE This document contains export controlled technical data whose export is restricted by the Army Export Control Act Title 22 USC Sec 2751 et seq or Executive Order 12470 Violation of these export laws is subject to severe criminal penalties HANDLING AND DESTRUCTION NOTICE Comply with distribution statement and destroy by any method that will pr
57. ED ON OUTER RIM VERSION B VERSION A Change 3 2 69 TM 3 4230 228 23 amp P 2 23 CONTROL PANEL ASSEMBLY MAINTENANCE This task includes Repair a Replacement of Bulb b Replacement of Elapsed Time Meter INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Equipment Condition Engine shut down and cold Repair a Replacement of Bulb 1 2 3 4 5 Unscrew silver pushbutton cover 1 Unscrew red lens 2 and snap out plastic cup 3 Remove bulb 4 from receptacle 5 Removal requires a light inward push and a 1 4 counterclockwise twist Install replacement bulb 4 Reinstall cup 3 red lens 2 and pushbutton cover 1 b Replacement of Elapsed Time Meter 1 2 3 4 5 6 7 2 70 Remove drive side panel page 2 32 Tag and disconnect the electric leads from the back of the meter 8 Remove the two nuts 6 which retain the back portion of the meter back plate 7 Push the front half of the meter 8 out of the panel Position and aline the replacement meter 8 in panel Install the back portion of the meter 7 and secure with two nuts 6 Install the electric leads to the tabs on the back of the meter Change 1 TM 3 4230 228 23 amp P 2 71 Change 3 TM 3 4230 228 23 amp P 2 24 TOOL BOX ASSEMBLY MAINTENANCE This task includes Repair a Disassembly b Assembly INITIAL
58. ENGINE OVERHEATS 215cc ENGINE Step 1 Check for loose or broken fan belt Adjust or replace fan belt page 2 47 4 Notify Direct Support Maintenance if trouble persists 26 EXCESSIVE NOISE AND VIBRATION 215cc ENGINE Step 1 Inspect engine mounts for broken or missing hardware Tighten replace and adjust mounting hardware Step 2 Check for loose muffler mounting bolts Tighten nuts Replace muffler page 2 46 2 if trouble persists 2 21 6 Change 3 TM 3 4230 228 23 amp P Section IV UNIT MAINTENANCE PROCEDURES Page Page Generala iann SO ec tad aloes 2 22 Heater Fuel Filter Maintenance 2 66 M17 Decontaminating Apparatus Control Panel Assembly End Item Maintenance cccceee 2 23 Maintenance sessenta 2 70 Pump Heater Assembly Tool Box Assembly Maintenance 2 72 Maintenance cccccccccccessssssecceeeeeeseesaee 2 24 Water Inlet Assembly Drive Side Panel Maintenance 2 32 Maintenance sairon oipe t 2 74 Burner Fuel Pump Maintenance 2 34 Burner Assembly Maintenance 2 79 Engine Fuel System Maintenance 2 36 Heat Exchanger Maintenance 2 82 Burner Fuel Pump Tensioner Assembly Frame Maintenance cccesseceeeereeeeeeee 2 85 Maintenance cccccccccccsssssssecceeeeeeseeeaee 2 38 Suction Hose Assembly Engine and Fan Assembly Maintenance sssssssesessesresessresssreesseresssere 2 8
59. GNITE Continued Step 2 Check wiring by measuring continuity between the following points TB3 6 X2 on pushbutton TB3 5 X1 on pushbutton TB3 6 TB2 14 TB3 5 TB2 13 TB2 14 P1 W plug on wiring harness TB2 13 P1 V plug on wiring harness If continuity does not exist in any of the above checks tighten all connections If continuity i remains absent notify Direct Support Maintenance Notify Direct Support Maintenance if trouble persists 19 UNABLE TO RESET AT RESET PUSHBUTTON Refer to System Schematic and Wiring Diagram page F 1 as necessary Step 1 Remove switch guard page 2 24 and check wiring by measuring continuity as follows Contact 1 pushbutton to TB3 4 Contact 2 pushbutton to TB3 3 TB3 4 to TB2 12 TB3 3 to TB2 11 TB2 12 to J1 P TB2 11 to J1 N If continuity does not exist in any of the above checks tighten all connections If continuity remains absent notify Direct Support Maintenance Notify Direct Support Maintenance if trouble persists Bf 20 UNABLE TO STOP ENGINE WITH ENGINE STOP SWITCH Notify Direct Support Maintenance if this condition exists 2 20 Change 3 TM 3 4230 228 23 amp P MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 21 BOTH JETS ON Only one wand activated Disconnect nut from body of upper flow switch and inspect switch mechanism for broken spring dirt and corrosion and freedom of movement Clean as necessary using clear water Notify Direc
60. RDS 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 Management System TAMMS 1 3 REPORTING EQUIPMENT IMPROVEMENT RECOMMENDATIONS If your Decontaminating Apparatus 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 a SF 368 Product Quality Deficiency Report Mail it to us at Site Manager Soldier and Biological Chemical Command RI ATTN AMSSC RSO SDM RI 1 Rock Island Arsenal Rock Island IL 61299 7390 Fax Commercial 309 782 3126 DSN 793 3126 e mail amssc rso em ria army mil We ll send you a reply Change 3 1 1 TM 3 4230 228 23 amp P 1 4 NOMENCLATURE CROSS REFERENCE LIST Common Name Mica Window Spray Wand M17 Engine Stop Switch Injector Water Tank Low Temperature Cutout LTCO Switch High Temperature Cutout HTCO Switch Elapsed Time Meter Override Switch Storage Tray 32 Gallon Container Engine Fuel Can Heater Fuel Can Water Pump Adapter Tags Engine Mounts Fuel Pump Function Switch Timing Gage O ring Gasket I RPM Indicator Official Nomenclature Window Observation Cleaning Gun Water Decontaminating Apparatus Power Driven Lightweight M17 Switch Toggle Injector System Tank Fabric Collapsible Transmitter
61. TION CORRECTIVE ACTION 12 13 14 15 16 17 18 TEMPERATURE TOO HIGH Shower Mode Notify Direct Support Maintenance if this condition exists TEMPERATURE TOO HIGH Wand Mode Notify Direct Support Maintenance if this condition exists BURNER CONTINUES TO OPERATE Notify Direct Support Maintenance if this condition exists ELAPSED TIME HOURS METER INOPERATIVE Using a multimeter check continuity between negative terminal on meter and TB1 12 Repeat check between positive terminal on meter and TB1 4 Refer to App F wiring diagram If connection is loose tighten it If continuity does not exist replace broken wire If continuity exists replace hours meter page 2 70 WATER PRESSURE GAGE INOPERATIVE Notify Direct Support Maintenance if this condition exists NO HEATING Shower Mode Only Notify Direct Support Maintenance if this condition exists WATER TEMPERATURE GAGE INOPERATIVE Notify Direct Support Maintenance if this condition exists RESET LAMP IS OFF WHEN BURNER FAILS TO IGNITE NOTE Refer to System Schematic and Wiring Diagram App F as necessary Step 1 Remove switch guard page 2 24 and check for continuity across lamp contacts X1 to X2 on pushbutton If open replace bulb page 2 70 Change 1 2 19 TM 3 4230 228 23 amp P 2 7 UNIT MAINTENANCE TROUBLESHOOTING TABLE Continued MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 18 RESET LAMP IS OFF WHEN BURNER FAILS TO I
62. TM Number column on DA Form 2404 Equipment Inspection and Maintenance Worksheet c The Interval Columns tell you when to do a certain check or service Sometimes a dot may be placed in more than one interval column which would mean you should do the check or service at each of those intervals S Semi annual every 180 days or 25 hours of operation whichever is first A Annual once every year or every 50 hours of operation whichever is first B Biennially once every 2 years or every 100 hours of operation whichever is first H Hourly as indicated Hours of operation are indicated on the HOURS meter located on your control panel d Items to be Inspected Column The items listed in this column are identified by their common names e Procedures Column This column briefly describes the procedure to be checked It contains all information required to accomplish the checks and services including appropriate tolerances adjustments and gage readings f Prior to Storage or Shipment A complete PMCS will be performed prior to storage or shipment g Under Unusual Conditions Servicing of your unit is required more often when operating in extreme conditions Servicing more often is also required after operating in dust mud or sand Local SOP will authorize changes of the PMCS intervals when the unit is operated under unusual conditions h Ecology and Conservation Spilling of fuel damages our ecology Always use a suitabl
63. Temperature Transmitter Temperature Meter Time Totalizing Switch Toggle Weldment Rack Can 32 Gallon Galvanized Steel Can Gasoline Military Engine Can Gasoline Military Heater Pump Water Positive Displacement Mender Hose Reducer Tag Stock Marking Mount Resilient Pump Rotary Lever Manual Control Dial Indicator Preformed Packing Tachometer 1 5 DESTRUCTION OF ARMY MATERIAL TO PREVENT ENEMY USE For procedures and materials used to destroy the Decontaminating Apparatus refer to TM 43 0002 31 1 6 CORROSION DATA FEEDBACK a 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 b While corrosion is typically associated with rusting of metals it can also include deterioration of other materials such as rubber and plastic Unusual cracking softening swelling or breaking of these materials may be a corrosion problem c Such problems should be reported using SF 368 Product Quality Deficiency Report Send the form to Site Manager Soldier and Biological Chemical Command RI ATTN AMSSC RSO SDM RI 1 Rock Island Arsenal Rock Island IL 61299 7390 n n now Use of key words such as corrosion rust deterioration or cracking will assure that the information is identified
64. UNCTION TEST OR INSPECTION CORRECTIVE ACTION 8 NO BURNER FUNCTION NO IGNITION 215cc ENGINE Continued NOTE It may be necessary to shield the igniter plug from sunlight when performing the spark check to determine the presence and intensity of the spark d Remove drive side panel and remove belt from fuel pump page 2 26 e Position electrode approximately 1 8 inch away from a good ground Two people required Start engine and operate at maximum rpm Look for spark between igniter plug and ground IGNITER PLUG If spark is absent or weak normal spark is plainly visible and bluish in color replace igniter plug and repeat step 2 If spark is still bad go to next step If spark exists proceed to step 7 2 16 Change 3 TM 3 4230 228 23 amp P MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 8 NO BURNER FUNCTION NO IGNITION 215cc ENGINE Continued Step 3 Check Voltage Tripler Detach igniter plug from tripler boot Attach igniter plug to boot of igniter assembly IGNITER RK KR gS KONNIN ONNA ONAN T ENON EOSS RRS XY Oise OOOO ES SAA RNKKRN ANN ARAN IX Tia X Q REEN XXX RY nents Wo Rhee Ay SA ERROR Y ONOIR ROONEY BK RK W IGNITER PLUG TRIPLER BOOT TRIPLER Repeat check for spark in step 2 If spark exists replace tripler page 2 27 Step 4 Check Igniter Assembly Using a multimeter set to DC scale measure v
65. and 9 from fuel pump assembly e Remove nut 11 sockethead screw 7 spacer 8 washer 10 and fuel pump assembly 2 2 Installation a Place replacement fuel pump assembly 2 and spacer 8 in position and secure with sockethead screw 7 nut 11 and washer 10 NOTE Sockethead screw 7 must be loose enough so that pump 19 can pivot b Connect hoses 1 5 and 9 c Attach spring 12 to sockethead screw 4 on fuel pump assembly behind washer 3 and tighten screw d Position belt 6 on pulleys and reinstall panel page 2 32 TM 3 4230 228 23 amp P b Repair Repair consists of replacement of elbows nipples and tee If pump 19 is defective replace entire assembly NOTE Use locking compound on all threads except hose connections 1 Remove nipples 13 15 and 22 2 Remove tee 14 and nipple 16 3 Remove elbows 17 and 21 4 Remove nipples 18 and 20 5 Clean all components with cleaning solvent and brush 6 Install nipples 18 and 20 7 Install elbows 17 and 21 8 Install nipples 16 and 22 9 Install tee 14 10 Install nipples 13 and 15 Change 3 2 35 TM 3 4230 228 23 amp P 2 12 ENGINE FUEL SYSTEM MAINTENANCE This task consists of Repair a Disassembly b Assembly INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Materials Required Bulk Hose MIL H 13444 Type 1 Bulk Hos
66. ce wire page 3 40 2 NOTE Partial disassembly of engine page 3 109 will be necessary to replace wire 19 BOTH JETS ON Only One Wand Activated Replace flow switch FS2 MALFUNCTION 9 step 2 page 3 14 if this condition exists 3 18 Change 3 TM 3 4230 228 23 amp P MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 20 ENGINE FAILS TO START OR STOPS 215cc ENGINE NOTE When testing the different electrical components there is one that cannot be tested accurately It is the amplifier If all the other components test good the amplifier unit can then be assumed to be the problem Step 1 Check if engine turns using recoil starter If engine is seized cannot be turned perform engine block cylinder repair procedure page 3 115 Possible faults are seized bearings damaged rings piston and broken connecting rod Step 2 Deleted Step 3 Check for incorrect ignition timing Set ignition timing by aligning timing marks on stator plate page 3 111 21 ENGINE RUNS ROUGHLY 215cc ENGINE Step 1 Perform engine compression test as follows a Remove spark plug Change 3 3 18 1 TM 3 4230 228 23 amp P 3 3 DIRECT SUPPORT MAINTENANCE TROUBLESHOOTING TABLE Continued Table 3 1 Direct Support Troubleshooting Continued MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 21 ENGINE RUNS ROUGHLY 215cc ENGINE Continued b Install cylinder compression tester in spark plug hole c Vigorously p
67. cting wire number 12 from TB3 12 and wire number 13 from TB3 11 and unscrewing switch from multiple connector 4 Remove high temperature cutout switch 11 disconnecting wire number 10 from TB3 10 and wire number 11 from TB3 12 and unscrewing it from multiple connector Disconnect temperature bulb 14 from thermometer adapter 15 No tools required Disconnect pressure sensing unit 2 of manometer assembly from connector 4 Unscrew nut 1 from heat exchanger and remove connector 4 from heat exchanger 7 8 9 10 TM 3 4230 228 23 amp P Remove nut 1 and compression sleeve 3 It may be necessary to cut sleeve 3 from connector 4 to remove nut 1 Remove coupling half 5 from connector 4 Remove thermometer adapter 15 Clean all parts with cleaning solvent and brush and inspect for serviceability OOR AIEO ORERE RS E AEN A ON C4 ERROR RNIN RO ANN EOE SR RHR RRR Ress R are Bees oS y ees ot ESS eee OSES Boos SSS ISLS Koos SISS ESKES SSIS EEES RES LS SSIS SSe EEES CSREES SESS RS Wr Ca Change 3 3 27 TM 3 4230 228 23 amp P 3 6 OUTLET ASSEMBLY MAINTENANCE Continued b Assembly and Installation 3 28 1 2 3 4 5 6 Coat threads of adapter 15 and coupling half 5 with locking compound and install on multiple connector 4 Install connector 4 on heat exchanger with n
68. cuit and cause severe burns or electrical shock Secure all loose clothing Alternate fuel ball pump assembly OMC does not allow fuel to be drained from fuel lines by squeezing bulb Drain and relieve fuel line pressure by loosening hex head carburetor main jet located at the bottom of the fuel bowl Failure to do this could result in fuel being sprayed on personnel and equipment causing injury or damage to equipment Refer to FM 21 11 for First Aid Information Change 3 a b blank CHANGE NO 3 TM 3 4230 228 23 amp P C3 HEADQUARTERS DEPARTMENT OF THE ARMY WASHINGTON D C UNIT AND DIRECT SUPPORT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST FOR DECONTAMINATING APPARATUS POWER DRIVEN LIGHTWEIGHT M17 NSN 4230 01 251 8702 DISTRIBUTION STATEMENT C Distribution authorized to U S Government agencies and their contractors to protect technical or operational information This determination was made on August 27 1987 Other requests for this document will be referred to Site Manager Soldier and Biological Chemical Command RI ATTN AMSSB RSO SDM RI 1 Rock Island Arsenal Rock Island IL 61299 7390 EXPORT CONTROL NOTICE This document contains export controlled technical data whose export is restricted by the Army Export Control Act Title 22 USC Sec 2751 et seq or Executive Order 12470 Violation of these export laws is subject to severe criminal penalties TM 3 4230 228 23 amp P 1
69. d page 3 92 is necessary for access Refer to System Schematic and Wiring Diagram page F 1 as necessary Step 1 Check continuity across reset switch contacts contacts 1 and 2 Replace switch page 3 92 if open Step 2 Check continuity of jumper wire between TB3 4 and reset switch contact 1 If open tighten connection replace wire if still open Step 3 Check continuity of jumper wire between TB3 3 and PUSHBUTTON switch contact 2 If open tighten connection replace wire if still open Step 4 If still unable to reset replace control module page 3 82 Step 5 Check continuity of system wiring harness by measuring continuity as follows TB3 4 to TB2 12 TB3 3 to TB2 11 If continuity is not measured in either test tighten connections and if wire remains open replace wiring harness page 3 20 Change 3 3 17 TM 3 4230 228 23 amp P 3 3 DIRECT SUPPORT MAINTENANCE TROUBLESHOOTING TABLE Continued Table 3 1 Direct Support Troubleshooting Continued MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 18 UNABLE TO STOP ENGINE WITH ENGINE STOP SWITCH Step 1 With system off and switch in DOWN position check continuity through switch at TB3 13 and TB3 14 If continuity is not measured replace switch page 3 92 Step 2 Check for continuity between TB3 14 and any good solid ground on engine If continuity is not measured check replace engine ground wire number 80 If continuity is measured check repla
70. d mixture to engine fuel can at this time 2 Start and operate engine at idle speed until it has reached normal operating temperature 3 Shut down engine and replace engine fuel with preservative mixture prepared in step 1 above 4 Start engine and set throttle to half open position Allow engine to operate for an additional five minutes 5 Stop engine and allow to cool Remove engine spark plug from cylinder head 6 Remove carburetor float bowl and main jet page 2 48 Using a clean rag wipe bowl and jet until dry Reinstall float bowl and main jet in carburetor 7 Pour approximately one tablespoon of undiluted preservative oil Item 12 App D through spark plug hole and into cylinder Slowly pull engine starter handle several times 8 Pull starter until piston is positioned at approximately its highest point in the cylinder and reinstall spark plugs e Remove fuel cans and drain fuel lines fuel filter and fuel cans Change 3 2 103 TM 3 4230 228 23 amp P 2 39 PREPARATION FOR LONG TERM STORAGE OR SHIPMENT Continued f Using duct tape item 26 App D cover exhaust of heat exchanger 20 water inlet assembly 24 carburetor air filter 23 outlet assembly 21 pressure relief valve 22 and photocell tube 25 CAUTION If rinse down is required prior to shipment use only fresh water to clean pump heater assembly NEVER USE SALTWATER g Place pump heater assembly 26 on base 15 Place dust cover
71. e MIL H 5593 3 Tags Item 25 App D Tiedown Straps Item 23 App D Equipment Conditions Engine shut down and cold a Disassembly 1 2 3 4 5 6 7 8 NOTE Removal of drain plate may be necessary for access page 2 44 Cut tiedown straps 2 and remove strainer 1 Remove hose 3 Remove gasket 4 Cut tiedown strap 6 and remove fuel tag 7 Remove ball pump assembly 8 from lid assembly 5 and filter 9 Remove nut 11 bolt 14 washers 12 and clamp 13 then remove filter 9 and hose 10 Remove adapter 15 and hose 16 Remove hoses 17 and 18 b Assembly 1 2 Install tag 7 on ball pump hose with tiedown strap 6 As required cut length of hose needed from bulk hose to fabricate hoses 3 10 16 17 and 18 Alternate ball pump has furnished plastic compression clamps to secure ball pump to hoses 2 36 Change 3 TM 3 4230 228 23 amp P 3 Install hose 16 on fuel pump and insert adapter 15 in open end of hose 4 Connect fuel hose 18 to carburetor inlet port and fuel pump outlet port barbed nipple at top of fuel pump and air hose 17 to fuel pump port smooth surface nipple at top of fuel pump and nipple on engine block 5 Connect hose 10 to adapter 15 and secure with clamp 13 bolt 14 washers 12 and nut 11 NOTE Ensure filter and ball pump flow arrows point in direction of fuel flow 6 Insert filter 9 in end of tube 10 ma
72. e container to catch spilled fuel when opening fuel fluid lines Immediately wipe up spilled fuels with rags 2 3 blank 2 4 Change 3 TM 3 4230 228 23 amp P 2 4 PREVENTIVE MAINTENANCE CHECKS AND SERVICES PMCS SCHEDULE Item Interval Items to be No A B H Inspected Procedure 1 Safety Shutdown Remove fuel pump belt page 2 26 and operate Reset Circuits system See TM 3 4230 228 10 for maximum of 5 minutes Note if RESET pushbutton lights If RESET button does not light refer to MALFUNCTION 18 page 2 19 2 Carburetor Air Filter Loosen clamp and remove clamp and filter Wash filter in cleaning solvent item 21 App D and shake dry Install filter with clamp and apply a light coat of oil item 12 App D with a rag item 17 App D to outer surface of filter AIR FILTER 3 Replace page 2 30 Mica Window Change 3 2 5 TM 3 4230 228 23 amp P 2 4 PREVENTIVE MAINTENANCE CHECKS AND SERVICES PMCS SCHEDULE Continued Item Interval Items to be No S A B H Inspected Procedure 4 Branch Hose Inspect branch hose strainer and clean if required Strainer page 2 90 Inspect strainer body and element for scale buildup If scale buildup is 1 16 inch or greater perform descaling procedure page 2 82 5 Deleted e Engine Spark Plug Replace verify gap is 0 035 to 0 040 in page 2 43 215cc Engine 6 Heater Fuel Filter Replace element page 2 68 7 Engine Mounts
73. e ignition coil Change 3 1 5 TM 3 4230 228 23 amp P 1 9 ELECTRICAL SYSTEM PRINCIPLES OF OPERATION Continued b FUNCTION SELECTOR Switch The selector switch mounted on the control panel provides for selection of desired maximum water temperature In the OFF position no heating is provided In the SHOWERS mode the Low Temperature Cutout LTCO switch is selected to prevent water temperatures above 43 C 109 4 F In the WANDS mode the LTCO switch is bypassed to permit the higher temperatures required for equipment decontamination In the WANDS mode the HTCO switch is activated to prevent water temperatures above 117 C 242 6 F c Photocell The photocell is mounted on heat exchanger Its purpose is to detect when fuel has been ignited and is burning in the combustion chamber If ignition has not occurred lack of a signal provided by the photocell assembly will result in turning off the supply of fuel to the nozzles d Igniter Voltage Tripler and Fuel Igniter Plug The engine produces ac voltage which is rectified in the control module and amplified by the igniter assembly to approximately 10 kilovolts The voltage tripler further increases that voltage to approximately 30 kilovolts The igniter plug produces the spark necessary for ignition e High and Low Temperature Cutout Switches The high and low temperature cutout switches HTCO ant LTCO are provided to maintain the hot water within a safe temperature range Water te
74. e version A install plugs 5 bolt 3 washer 4 and nipples 13 and plugs 5 on fuel filter b If you have version B install nipples 13 on fuel filter c Install filter on frame with two bolts 7 washers 2 and 6 and nuts 1 d Apply locking compound to connector threads and install hose 11 by first connecting it to nipple 13 on filter then to fuel pump as tagged e Apply locking compound to connector threads and install hose 10 by first connecting it to nipple 13 on filter then to tool box connector as tagged f Reinstall drive side panel 12 VERSION B Change 3 2 67 TM 3 4230 228 23 amp P 2 22 HEATER FUEL FILTER MAINTENANCE Continued b Repair Replace Element 2 68 1 2 NOTE Repair may be performed on or off equipment Disassembly a Loosen thumbscrew 15 or 18 and drain fuel from sediment bowl being sure to catch fuel in any available container Remove thumbscrew 15 and gasket 16 when all fuel is drained b Unscrew bolt 3 while keeping light upward pressure on filter bottom 14 Remove filter bottom 14 bowl 12 and filter element 10 as a unit and separate Version B Unscrew filter element 21 and attached bowl assembly 19 from filter head 22 c Remove gasket 13 from filter bottom 14 gasket 11 from bowl 12 and gaskets 8 and 9 from filter head 17 Version B Remove bowl assembly 19 and gasket 20 from filter elem
75. ear Zero Ohms A D RX 100 No Continuity co Diode Reading Infinite Resistance D RX 100 No Continuity 20 Diode Reading Infinite Resistance D RX 100 Continuity Diode Reading at or near Zero Ohms A RX 100 1000 300 Ohms Q No Continuity co amp Ba Infinite Resistance Continuity amp PEM at or near Zero Ohms Diode Reading Test Setting Due to differences in test meters results other than specified may be obtained In such cases reverse meter leads and retest Diode measurements will be opposite for Fluke meters and equivalent If spark is not observed perform Step 5 3 Change 3 2 21 3 TM 3 4230 228 23 amp P 2 7 UNIT MAINTENANCE TROUBLESHOOTING TABLE Continued MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 23 ENGINE FAILS TO START OR STOPS 215cc ENGINE Continued Step 5 3 Single CDM Ignition Stator and Trigger Tests A Stator Charging Yellow with Eyelet Connector B Stator Charging Yellow with Female Insulated Spade Connector C Stator Ignition Power Black with Male Bullet Connector D Trigger Wire Yellow with Male Bullet Connector G Engine Ground NOTE Disconnect all wiring connections before conducting tests IGNITION TRIGGER RESISTANCE TEST Connect Positive Connect Negative Set Meter to Ohm Scale p cification Meter Lead to er Lead tc
76. embly 4 from tee 3 Remove nipple 2 from tee 8 Remove elbow 8 from tee 3 Remove sleeve 7 and nut 6 from tube 5 if required b Assembly and Installation 1 2 2 60 Clean all components except photocell assembly 4 and mounting surfaces with cleaning solvent and brush Inspect for serviceability Wipe photocell assembly with rags making sure photo element eye is clean Position spacer 14 mica window 13 and tee 12 on heat exchanger assembly and secure with two screws 10 washers 12 and lockwashers 11 TM 3 4230 228 23 amp P 3 Install nipple 2 on tee 3 using locking compound 4 Install elbow 8 on tee 3 using locking compound 5 Position nut 6 and sleeve 7 on tube 5 then install nut on elbow 8 6 Install photocell assembly 4 on tee 3 with screw 9 being careful not to crack photocell and connect wire 33 to TB2 5 and wire 34 to TB2 6 7 Reconnect photocell cooling hose 1 to nipple 2 AR Gon SR P ARN he Cae ee A FARR AX ROKER ON aan LEAN PUR a RRAN NR IA A oe ON oa BK Ne bX REO E o OIN OR ogee ES eg es N Qh Fy LNs 4 2 61 TM 3 4230 228 23 amp P 2 20 PHOTOCELL COOLING HOSE ASSEMBLY MAINTENANCE This task includes Repair a Removal and Disassembly b Assembly and Installation INITIAL SET UP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Materials Required
77. en junction box door and disconnect blue lead No 33 from terminal TB 2 5 Loosen screw A and remove photocell from Tee Using a multimeter read resistance between lead No 33 and terminal TB 2 6 while pointing the eye of the photocell toward a light source light bulb flashlight headlight or sun 2 17 2 Change 3 TM 3 4230 228 23 amp P MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION If the resistance is greater than 30 kilo ohms while pointing the eye of the photocell toward a 8 NO BURNER FUNCTION NO IGNITION 215cc ENGINE Continued light source and less than 3 mega ohms when the eye is covered the photocell is defective and must be replaced page 2 60 Install photocell on tee and tighten screw A being careful not to crack photocell housing Step 8 Service fuel nozzles page 2 79 Step 9 Check for low engine speed page 2 51 Step 10 If failure occurred in WANDS press RESET button and switch to SHOWERS or if failure occurred in SHOWERS switch to WANDS If fuel ignites in one mode but not in other mode notify Direct Support Maintenance Change 3 2 17 3 TM 3 4230 228 23 amp P 2 7 UNIT MAINTENANCE TROUBLESHOOTING TABLE Continued MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 9 LOW WATER Step 1 Step 2 Step 3 Step 4 TEMPERATURE Check fuel pressure at control panel If normal pressure of 95 105 psi is indicated go to step 4 if press
78. end of tensioner 38 on fan housing 39 b Slightly loosen two attaching bolts 13 but do not remove c Push tensioner 40 3 16 to 1 4 inch farther to the right and while holding in place securely tighten attaching bolts 41 d Repeat steps 5 and 6 to verify adjustment Reinstall panel 10 2 31 TM 3 4230 228 23 amp P 2 10 DRIVE SIDE PANEL MAINTENANCE This task consists of a Replace 1 Removal 2 Installation b Repair Replacement of Fasteners INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 90 N26 Pliers Special Item 3 Figure C 61 Tool Camloc Fasteners Item 2 Figure C 61 Materials Required Cleaning Solvent Item 21 App D Brush Varnish Item 4 App D Equipment Conditions Engine shut down and cold a Replace 1 Removal a Using a medium tip screwdriver engage stud assembly 3 screwdriver slots and turn CCW until they disengage b Remove drive side panel 4 2 Installation a Place drive side panel in position on pump heater assembly b Engage screwdriver slots of stud assemblies 3 and turn CW until they snap in place b Repair Replacement of Fasteners 1 Using special pliers grasp stud assembly 3 with fork of pliers below stud shoulder and compress spring of stud assembly with pliers Remove stud assembly 2 Insert a screwdriver in split of split ring 1 and remove ring with a twist of the scre
79. engaged with muffler 13 and heat exchanger i Secure hose 10 to muffler 13 with bolt 12 washers 9 and 11 and nut 8 G Reinstall guard 4 with bolts 3 washers 1 lockwashers 2 and guard assembly 4 Change 3 2 47 TM 3 4230 228 23 amp P 2 15 1 ENGINE IGNITION SYSTEM MAINTENANCE 215 cc ENGINE This task consists of Repair Ignition System Replacement of Ignition Coil and Ignition Amplifier a Removal b Inspection c Assembly INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Materials Required Brush Item 4 App D Cleaning Solvent Item 21 App D Equipment Conditions Engine shut down and cold Repair a Removal 1 Unplug spark plug cap 1 from spark plug by pulling on the cap while rotating slightly Do not pull on wire to remove cap 2 Detach primary blue white and black white leads of ignition coil 2 3 Unscrew screw 4 and remove along with washer 5 4 Unscrew screw 6 and remove along with washer 7 Remove ignition coil 2 from engine 5 Unscrew screw 8 from nut 9 and remove along with washers 10 Remove coil 2 from bracket 11 6 Remove screw 12 from ignition coil 2 and remove grounding bar 18 7 Tag and detach electric lead 14 at connector 3 8 Remove screw 15 along with washer 16 Remove ignition amplifier 17 b Inspection Clean hardware and brackets in solv
80. ent 21 Retain bowl assembly 19 and gasket 20 for later reuse d Remove two nuts 1 bolts 7 and washers 2 and 6 Version B Remove filter head 22 e Remove bolt 3 washer 4 gasket 5 and filter head 17 f Clean all parts with cleaning solvent and inspect for serviceability Discard unserviceable parts and all gaskets for which replacement is provided with filter element kit Assembly a Position bolt 3 washer 4 and gasket 5 on filter head 17 and secure filter head 17 or 22 to frame with bolts 7 washers 2 and 6 and nuts 1 NOTE Gasket 9 provided in filter element kit is identified with a blue mark on outer rim and is larger than gasket 11 which is also part of the kit Be sure not to interchange b Install gaskets 8 and 9 on filter head 17 c Install gasket 13 on filter bottom 14 d Install gasket 11 on bowl 12 e Position filter element 10 bowl 12 and filter bottom 14 on filter head 17 f Turn filter assembly so that thumbscrew will be positioned outward Carefully aline all components and tighten bolt 3 making sure gaskets remain in place g Install gasket 16 and thumbscrew 15 h Version B Install gasket 20 into bowl assembly 19 and screw onto filter element 21 Screw filter element 21 with attached bowl assembly 19 onto filter head 22 Change 3 TM 3 4230 228 23 amp P LARGER GASKET HAS A BLUE LINE MARK
81. ent Do not soak coil or amplifier in solvent Inspect hardware and brackets for damage Replace unserviceable components c Assembly 1 Position ignition amplifier 17 on fan housing and secure with screw 15 and washer 16 2 Re attach amplifier lead as tagged 3 Position ground bar 13 onto ignition coil and secure with screw 12 2 47 0 Change 2 TM 3 4230 228 23 amp P c Assembly Continued 4 Position bracket 11 onto ignition coil and secure with screw 8 and nut 9 making sure washers 10 are in place 5 Position assembled ignition coil 2 in place on fan housing 19 and secure with screws 4 and 6 making sure washers 5 and 7 are in place 6 Re attach primary lead of ignition coil 2 at plug connector 3 7 Attach spark plug cap 1 to spark plug 20 Change 3 2 47 1 TM 3 4230 228 23 amp P 2 15 38 STARTER MAINTENANCE 215 cc ENGINE This task consists of Replace a Removal b Cleaning and Inspection c Repair d Installation INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Materials Required Brush Varnish Item 4 App D Cleaning Solvent Item 21 App D Equipment Conditions Engine shut down and cold Replace a Removal NOTE Before removing starter note position of handle to facilitate reinstallation 1 Mark the location of recoil handle by scribing a line between recoil housing and fan housing 2
82. ent TM 3 4230 228 10 55 Gallon Drum 1 each Item 9 App D Sodium Carbonate Soda Ash Item 19 App D Sulfamic Acid Item 24 App D Equipment Condition Engine shut down and cold Service Descaling 2 82 NOTE Descaling is necessary when scale deposit of 1 16 inch or more has accumulated on interior surfaces of coil assembly outlet assembly branch and pressure hose assemblies showers and wands Deposit should be checked at the outlet assembly page 2 7 or at the branch hose strainer page 2 90 Move decontaminating apparatus to be descaled to the designated area Position two garbage cans and one 55 gallon descaling drum approximately 20 to 30 feet from intake end of decontaminating apparatus Connect suction hose and place strainer end in bottom of descaling drum Secure in position Connect branch hose assembly to outlet assembly Do not remove strainer Connect two pressure hoses to branch hose assembly Place discharge ends of each pressure hose in descaling drum Fill 55 gallon descaling drum with 30 gallons of water and each of the 32 gallon cans with 25 gallons of water Start decontaminating apparatus and establish a water flow FUNCTION SELECTOR in OFF position Position pressure hoses so they do not interfere with inlet to suction strainer TM 3 4230 228 23 amp P j Turn FUNCTION SELECTOR to WANDS while holding OVERRIDE switch to ON position until water temperature in 55 gallon drum is appro
83. ent and tight e Check to see that bolts securing mounts to frame are not cracked or deteriorated f Start engine and listen for fan noises Unusual noises from fan may indicate fan damage or sheared key 2 40 Notify Direct Support Maintenance if this problem exists Change 3 TM 3 4230 228 23 amp P PARTIALLY DISASSEMBLED FOR CLARITY NOTE Bolt 4 protrudes approximately 3 16 inch at bottom when properly installed Change 3 2 40 1 TM 3 4230 228 23 amp P 2 14 ENGINE AND FAN ASSEMBLY MAINTENANCE Continued Repair Transformer Replacement a Removal 1 Remove four screws 7 lock washers 6 washers 5 and inlet side cover 4 2 Detach black transformer wire 84 from yellow engine wire 83 at connector 3 Detach red transformer wire 85 from wire 103 at connector 4 Detach white transformer ground wire from engine block by unscrewing screw Remove cap screw washer and electrical connector 5 Cut any plastic ties holding transformer wires in place 6 Remove four screws 1 and self locking nuts 3 holding the transformer 2 to back of the inlet side cover 4 b Cleaning Clean mounting surface on inlet side cover c Replacement 1 Install transformer 2 on back of inlet side cover 4 using four screws 1 and self locking nuts 3 2 Attach transformer white ground wire to engine block with screw and washer 2 40 2 Change 3 TM 3 4230 228 23 amp P 3 Attach ground w
84. erate unit and check for leaks 2 78 Change 3 TM 3 4230 228 23 amp P 2 26 BURNER ASSEMBLY MAINTENANCE This task includes a Service b Replace 1 Removal and Disassembly 2 Cleaning and Inspection 3 Assembly and Installation INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Materials Required Brush Varnish Item 4 App D Cleaning Solvent Item 21 App D Tags Item 25 App D Equipment Condition Engine shut down and cold a Service 1 Remove burner assembly page 2 80 steps 1 a through 1 d 2 Check igniter plug 1 for corrosion cracked insulation burned electrode and other physical defects 3 Remove three bolts 7 washers 5 lockwashers 6 and access cover 8 to gain access to fuel nozzles 9 and 10 NOTE When disassembling nozzles do not interchange parts Be sure to observe cleanliness 4 Remove nozzles 9 and 10 from burner nozzle holder assembly and disassemble into their components screen 3 nozzle 4 and tip 2 Wash in cleaning solvent 5 Reassemble nozzles 9 and 10 and install on burner nozzle holder assembly Nozzle 10 bears markings 6 00 60 BPS on tip and nozzle 9 is marked 4 00 30 BPS 6 Position plate 8 on burner and install three bolts 7 washers 5 and lockwashers 6 Change 3 2 79 TM 3 4230 228 23 amp P 2 26 BURNER ASSEMBLY MAINTENANCE Continued a Service
85. ers 18 and 19 and nuts 20 i Connect cable 16 output from igniter assembly to voltage tripler j Attach grounding cable 23 to burner assembly flange with screw 25 and washer 24 and connect other end to voltage tripler as indicated k Reconnect output cable 22 to igniter plug a a 2 28 TM 3 4230 228 23 amp P 5 Replacement of Igniter Assembly NOTE Refer to System Schematic and Wiring Diagram page F 1 as necessary a Disconnect igniter cable 30 wires 4 and 6 from terminal boards TB2 1 and TB2 3 b c d wm e nN rar g h Nar i injunction box assembly Disconnect output cable 29 from voltage tripler NOTE Loosening of obstructing fuel hose may be necessary l I L l i i J aN a INPUT CONNECTOR Remove two bolts 26 two washers 27 and igniter assembly 28 Removal of tiedown straps may be necessary Clean igniter assembly mounting surfaces with cleaning solvent and brush Position replacement igniter assembly 28 on frame and secure with two bolts 26 and washers 27 Route input cable 30 to terminal boards in junction box and connect wire 6 to TB2 3 and wire 4 to TB2 1 Connect green output cable 29 to input connector on voltage tripler Install tiedown straps as necessary Retighten all fuel line connections 2 29 TM 3 4230 228 23 amp P 2 9 PUMP HEATER ASSEMBLY MAINTENANCE Contin
86. event disclosure of contents or reconstruction of the document Change 3 TM 3 4230 228 23 amp P WARNINGS Detailed operator Warnings are in the Operator s Manual TM 3 4230 228 10 The pump heater assembly weighs over 360 pounds To avoid back injury use a minimum of four people to move the unit When loading onto a transport vehicle use a minimum of eight people or a loading ramp Cleaning solvent is toxic and flammable Use only in a well ventilated area Avoid prolonged breathing of fumes Keep solvent away from flames Do not use in excessive amounts and avoid skin contact HIGH VOLTAGE is present on this equipment Death or injury may result if personnel fail to observe all safety precautions To prevent injury use care during maintenance actions when operating the unit with protective panels or covers removed Always wear protective clothing when performing descaling operation Descaling chemicals can cause irritation to unprotected eyes and skin When checking spark plug and igniter plug for adequacy of spark be sure not to touch plug or cap with bare hand Failure to heed this warning may result in injury from electric shock Solvents and adhesives used for repair of water tank are flammable Perform repairs in a well ventilated area free of spark or flame Remove rings bracelets wrist watch and neck chains before starting work Jewelry can catch on equipment and cause injury or may short across an electrical cir
87. for corrosion or damage Replace as necessary Repair 1 Replacement of Hoses and Fuel Can Components a Open tool box door and remove all components of fuel system b Cut tiedown straps 11 and remove strainer 10 c Remove hose 14 d Remove hose 13 from lid assembly and separate from tube 12 e Remove hose assembly 1 and 2 f Remove gasket 15 g Cut strap 17 and remove tag 4 h Clean all parts using cleaning solvent and brush allow to dry and inspect for serviceability Discard unserviceable parts Change 3 TM 3 4230 228 23 amp P i Install strainer 10 on hose 14 made from bulk hose cut 14 1 2 inches in length Secure with two straps 11 G Connect hose 14 to lid assembly 16 and install gasket 15 k Install hose 13 on metal tube 12 and connect to lid assembly 16 1 Connect hose assemblies 1 and 2 to connectors inside tool box Attach fuel suction hose 1 to larger nipple on lid assembly and fuel return hose 2 to smaller nipple and lid assembly 16 m Install tag 4 with strap 17 2 Replacement of Pressure Regulating Valve a Tag and disconnect four fuel hoses 2 6 7 and 8 b Remove nut 5 and pressure regulating valve 9 c Position replacement pressure regulating valve on bottom of tool box and secure with nut 5 d Reinstall hoses 2 6 7 and 8 Change 3 2 65 TM 3 4230 228 23 amp P 2 22 HEATER FUEL FILTER MAINTENANCE
88. g familiar with this manual and the Operator s Manual TM 3 4230 228 10 will help you maintain this equipment in good working order TM 3 4230 228 23 amp P NOT TO SCALE Change 3 v blank 1 0 TM 3 4230 228 23 amp P CHAPTER 1 INTRODUCTION Section I General Information a Section II Equipment Description and Data Section ITI Principles of Operation Section IV Repair Parts Special Tools Test Measurement and Diagnostic Equipment TMDE and Support Equipment Section I GENERAL INFORMATION Page Page SCOP Ges aa A N E 1 1 Destruction of Army Material to Maintenance Forms and Records 1 1 Prevent Enemy UsSe6 cceeseeeeeeees 1 2 Reporting of Equipment Improvement Corrosion Data Feedback cccccsssceees 1 2 Recommendations EIRs cece 1 1 Nomenclature Cross Reference List 1 2 1 1 SCOPE a Type of Manual Unit and Direct Support Maintenance Manual including Repair Parts and Special Tools List RPSTL b Model Number and Equipment Name The official equipment nomenclature is Decontaminating Apparatus Power Driven Lightweight M17 c Purpose of Equipment This equipment is used to decontaminate equipment exposed to nuclear biological or chemical agents It is used with water and water mixed with decontaminant When using decontaminant the injector must be used It also provides showers for personnel 1 2 MAINTENANCE FORMS AND RECO
89. gine 2 15 9 Low water temperature 2 18 16 No heating shower mode only 2 19 22 No override capability low pressure override switch open 2 21 5 No water flow no pressure 2 12 18 Reset lamp is off when burner fails to ignite 2 19 11 Temperature too high shower mode 2 19 12 Temperature too high wand mode 2 19 19 Unable to reset at RESET pushbutton 2 20 20 Unable to stop engine with ENGINE STOP switch 2 20 7 Water discharge through pressure relief valve 2 15 15 Water pressure gage inoperative 2 19 17 Water temperature gage inoperative 2 19 All data on pages 2 10 and 2 11 deleted Change 3 2 9 TM 3 4230 228 23 amp P i 2 7 UNIT MAINTENANCE TROUBLESHOOTING TABLE MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 1 Deleted 2 Deleted 3 Deleted 4 Deleted 5 NO WATER FLOW NO PRESSURE Step 1 Check for broken missing or loose water pump belts page 2 26 Replace belts as necessary page 2 26 2 12 Change 3 TM 3 4230 228 23 amp P MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION Step 2 Remove bolt and washer and check for sheared key on water pump pulley Key is sheared if pulley turns and pump shaft remains stationary If key is sheared replace as follows a Remove belts page 2 26 b Remove bolt and washer c Remove pulley from water pump shaft PULLEY d Remove damaged key clean shaft with rags item 17 App D and inspect for damage Remove burrs as necessary SH
90. gnment of components This will be important for reassembly 3 30 Change 3
91. hed to spark plug body Step 3 Check engine rpm If speed is not between 4200 and 4400 rpms under load adjust speed setting disk governor page 2 52 Step 4 Set throttle on carburetor to maximum speed and push lever at speed setting disk toward engine and then release Lever should snap back quickly and without binding If lever snaps back without binding go to step 6 if not continue with step 5 Step 5 Remove carburetor page 2 53 and repeat step 4 If lever does not snap back repair carburetor page 2 54 checking for broken spring improper assembly other damaged or worn parts After repairs have been completed perform engine speed adjustment procedures page 2 52 Step 6 Check engine ignition system malfunction 23 steps 4 through 8 Step 7 Check engine fuel system malfunction 23 steps 6 through 8 Step 8 Check for cracked broken or pinched fuel pump hose page 2 37 Step 9 Check for defective fuel pump Prime the carburetor using the ball pump and carburetor tickler Remove the fuel line leading to the carburetor inlet and direct the flow into the suitable container approximately 1 pint Have an assistant start the engine and observe fuel flow from the fuel line If little or no fuel is observed the fuel pump is defective and must be replaced Change 3 2 21 5 TM 3 4230 228 23 amp P 2 7 UNIT MAINTENANCE TROUBLESHOOTING TABLE Continued MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 25
92. ires to transformer 4 Attach red transformer wire 85 to TB 2 wire 103 at connector 5 Attach black transformer wire 84 to yellow engine wire 83 at connector 6 Secure transformer wires with plastic ties as necessary 7 Replace inlet side cover 4 with washers 5 lockwashers 6 and four screws 7 CUYUNA ENGINE ASSY ENGINE JUNCTION STOP SWITCH BOX TRANSFORMER Change 3 2 41 TM 3 4230 228 23 amp P 2 15 ENGINE ASSEMBLY MAINTENANCE This task consists of a Service 1 Torquing Cylinder Head Nuts 2 Cleaning Inspection of Spark Plug and Spark Plug Cap b Repair 1 Replacement of Fuel Pump 2 Replacement of Spark Plug 3 Deleted 4 Replacement of Cylinder Head and Head Gasket 5 Replacement of Muffler INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Shop Equipment Automotive Org 1 Common SC 4910 95 A74 Materials Required Cleaning Solvent Item 21 App D Wiping Rags Item 17 App D Gasket Item 5 Page C 33 1 i Brush Varnish Item 4 App D Equipment Conditions Engine shut down and cold a Service Engine servicing shall consist of periodic check tightening of cylinder head nuts and cleaning and inspection of spark plug Frequency of service is covered in PMCS 1 Torquing cylinder head nuts a Make sure engine is cold b Remove three screws 0 1 and access cover 0 2 c Torque cylinder head nuts
93. itch is defective Notify Direct Support maintenance If no spark is observed proceed to Step 5 for Cuyuna engine serial number below 63247 Ifno j spark is observed proceed to step 5 2 for Cuyuna engine serial number 63247 or higher CUYUNA ENGINE ASSY ENGINE JUNCTION l STOP SWITCH z BOX TRANSFORMER Change 3 2 21 1 TM 3 4230 228 23 amp P 2 7 UNIT MAINTENANCE TROUBLESHOOTING TABLE Continued MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 23 ENGINE FAILS TO START OR STOPS 215cc ENGINE Continued Step 5 External ignition coil Using an ohmmeter set to RX1 scale test resistance in the primary windings of the coil Attach the ohmmeter probes between the white black wire 98 and black wire lead from the coil connector The resistance reading should be between 0 25 and 0 35 ohms Replace coil page 2 47 0 if resistance is not as specified If the resistance is within the range specified go to Step 5 1 Step 5 1 Charge Trigger Coil Resistance Test stator a Test Charge Trigger Coil Resistance stator b Set the ohmmeter scale selector on the R x 100 position and zero the meter c Disconnect the black red and red white connectors from the amplifier unit d Test between the red white and black red leads on wires leading into the engine magneto The resistance must be between 146 and 175 ohms e Ifthe resistance is within the range specified for the charge trigger coil then the amplifier is defect
94. ive Replace the amplifier page 2 47 0 f Ifthe resistance is not within the range replace the trigger coil page 2 47 0 2 21 2 Change 3 TM 3 4230 228 23 amp P MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 23 ENGINE FAILS TO START OR STOPS 215cc ENGINE Continued Step 5 2 Single CDM Ignition Coil Module Test Procedures XK i Va A R J TO SPARK lt a oS ue PLUG LY as D POWER IN COIL MODULE B SHUTOFF C TRIGGER BLACK TERMINAL I D BLUE YELLOW IMPORTANT NOTICES ABOUT THIS TEST CAUTION USE ONLY BATTERY POWERED DIGITAL METER ANALOG METERS AND AC POWERED METERS MAY DAMAGE COIL MODULE This test is NOT a conclusive test Coil module contains solid state components and circuitry Some internal defects CANNOT be detected using these test procedures Thorough inspection and troubleshooting of basic electrical components such as wiring wiring connectors and terminals spark plugs power sources etc MUST be performed and problems corrected prior to condemning coil module Final confirmation of a defective coil module is to substitute a known good coil module If this corrects the problem the assumption is that the original coil module was defective Connect Positive Connect Negative Set Meter to Ohm Scale Test Value Specification Meter Lead to Meter Lead to RX 100 1250 100 Ohms Q D A RX 100 Continuity Diode Reading at or n
95. jury from electric shock CAUTION The spark plug must be grounded to engine Never crank the engine over without having the spark plug attached to the high tension lead and grounded as damage to the C D I unit may result Step 3 Check for adequacy of spark by connecting spark plug cap to plug and pressing threaded portion of plug to a good ground while pulling starter handle Spark should be plainly visible and blue in color Reinstall plug If the spark is adequate proceed with step 7 If the spark is weak or no spark is noted check engine ignition ground for corrosion or looseness of fastener Clean grounding terminal 1 with sandpaper or steel wool and ensure that grounding terminals are securely fastened to the engine block Check for adequacy of spark Step 3 If no spark is noted proceed to next step Change 3 TM 3 4230 228 23 amp P MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 23 ENGINE FAILS TO START OR STOPS 215cc ENGINE Continued Step 4 Detach white black wire 98 from ignition amplifier at connector and check for adequacy of spark as per Step 3 Make sure white black wire 98 is not grounded Check for adequacy of spark by connecting spark plug cap to plug and pressing threaded portion of plug to a good ground while pulling starter handle Spark should be plainly visible and blue in color Reinstall plug If spark is observed either a stop switch wire is shorted or the engine stop sw
96. king sure arrow points in direction of fuel flow and connect other end to ball pump assembly 8 Connect other free end of ball pump assembly 8 to lid assembly 5 7 Install hose 3 and gasket 4 on lid assembly 5 8 Install strainer 1 on open end of hose 3 with two tiedown straps 2 Change 3 2 37 TM 3 4230 228 23 amp P 2 13 BURNER FUEL PUMP TENSIONER ASSEMBLY MAINTENANCE This task consists of Repair a Disassembly and Removal b Assembly and Installation INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Materials Required Brush Varnish Item 4 App D Cleaning Solvent Item 21 App D Equipment Conditions Engine shut down and cold Repair a Disassembly and Removal 1 Remove drive side panel page 2 32 and fuel pump belt page 2 26 2 Loosen screw 7 and washer 6 attaching spring 5 to fuel pump assembly and disconnect spring 5 3 Remove screw 1 nut 4 washer 3 and spring 5 from bracket 2 4 Remove two sockethead screws 8 washers 10 lockwashers 9 and bracket 2 from fan housing 5 Clean all parts and mating surfaces with cleaning solvent and brush and inspect Discard unserviceable items b Assembly and Installation 1 Secure bracket 2 to fan housing with two sockethead screws 8 washers 10 and lockwashers 9 2 Attach spring 5 to bracket with screw 1 washer 3 and nut 4
97. le threads shall be treated with thread locking compound at assembly a Position ball valve so that control handle can move in an arc above ball valve b Install adapter 2 and pipe reducer 5 on ball valve 1 c Install syphon injector 9 on pipe reducer 5 as shown d Install adapter 8 gate valve 7 and coupling half 6 on syphon injector 9 e Install tubing 4 on adapter 2 and secure with hose clamp 8 Change 3 2 97 TM 3 4230 228 23 amp P 2 36 ACCESSORY BOX MAINTENANCE This task includes a Replace b Repair 1 Disassembly 2 Assembly INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Riveter Blind Hand Item 9 Page B 7 Materials Required Brush Varnish Item 4 App D Cleaning Solvent Item 21 App D Equipment Condition Accessory box empty a Replace Replace accessory box if bottom weldment 11 is unserviceable b Repair 1 Disassembly a Remove two rivets 1 and catch 2 using a cold chisel b Remove nine rivets 5 and hinge 6 c Remove two rivets 10 and latch assembly 9 d Remove fourteen rivets 7 and handle assembly 8 e Remove retaining rings 3 and chain 4 f Clean all parts with cleaning solvent and brush and inspect for serviceability Discard all unserviceable components 2 98 Change 3 TM 3 4230 228 23 amp P 2 Assembly a Install latch assembly 9
98. les of operation The chapter is preceded by a full page illustration of the equipment e Chapter 2 provides the maintenance instructions for Unit Maintenance and includes service upon receipt preventive maintenance and troubleshooting information detailed maintenance and repair procedures for the Unit Maintenance repairer and storage and shipment instructions e Chapter 3 contains the maintenance instructions for the Direct Support repairer and consists of troubleshooting information and repair maintenance procedures e Appendix A gives you a list of frequently used forms and publications e Appendix B is the Maintenance Allocation Chart MAC e Appendix C is the Repair Parts and Special Tools List RPSTL You will find this information helpful in finding repair parts and special tools information e Appendix D provides you with information about expendable supplies such as sealant paint lubricants etc e Appendix E tells you how to make some of the special tools you need to maintain the M17 They are easy to make and you have access to the materials needed to make them See Appendix C for Bulk Items List e Appendix F is the System Schematic and Wiring Diagram This information will be useful in supplementing your troubleshooting information at the Unit and Direct Support levels e The Alphabetical Index is the last item in the TM You will find it useful in locating page numbers about specific information or procedures Becomin
99. ls to ignite Temperature too high showers Temperature too high wands only Unable to reset at RESET pushbutton automatic shutdown Unable to stop engine with ENGINE STOP switch Water discharge through pressure relief valve Water pressure gage inoperative All data on pages 3 3 and 3 4 deleted 3 2 Change 3 3 18 1 3 8 3 5 3 18 1 3 14 3 9 3 16 3 9 3 16 3 15 3 15 3 17 3 18 3 10 3 15 TM 3 4230 228 23 amp P 3 3 DIRECT SUPPORT MAINTENANCE TROUBLESHOOTING TABLE Table 3 1 Direct Support Troubleshooting MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 2 ENGINE OPERATES ERRATICALLY 215cc ENGINE Step 1 Set throttle on carburetor to maximum speed and push lever at speed setting disk toward engine then release Lever should snap back quickly and without binding If lever snaps back without binding go to step 3 if not continue with step 2 Step 2 Remove carburetor page 2 53 and repeat step 1 If lever does not snap back repair carburetor page 2 54 checking for broken spring improper assembly other damaged or worn parts After repairs have been completed perform engine speed adjustment procedure page 2 51 a ARRON A ine z FESS Cat gt Or XX RE on OESO NODO KORIIN EEEE EAR ARAR OIII EEIE wo It gt sw GLN K NJ Sr SETTING DISK CARBURETOR A REMOVED FOR CLARITY Change
100. mmand RI ATTN AMSSB RSO SDM RI 1 Rock Island Arsenal Rock Island IL 61299 7390 EXPORT CONTROL NOTICE This document contains export controlled technical data whose export is restricted by the Army Export Control Act Title 22 USC Sec 2751 et seq or Executive Order 12470 Violation of these export laws is subject to severe criminal penalties HANDLING AND DESTRUCTION NOTICE Comply with distribution statement and destroy by any method that will prevent disclosure of contents or reconstruction of the document TABLE OF CONTENTS PAGE CHAPTER 1 INTRODUCTION scscssiscsccsdsscatevt AN NEEE AEE AETS 1 1 Section I General Information saccra EE EEEE EE ET ENE 1 1 Section II Equipment Description and Data cccccccssssccccceesssssneceeecceesssssneeeeeeeesesnssaeeeeeeeeess 1 2 1 Section III Principles of Operation oiicisiccissevevssveciiccsasaveussuecneccagervesaeeedeecceveuveedensdevecvvevwectteesseducar 1 5 Section IV Repair Parts Special Tools Test Measurement and Diagnostic Equipment TMDE and Support Equipment cccccccccccsssssssececeeeeeesessneceeeeccesssesseeeeeeeesens 1 8 CHAPTER 2 UNIT MAINTENANCE INSTRUCTIONS cccccccccsscccesssceceessseeceesseccesnseeeesseeeees 2 1 Section I Service Upon Receipt senises ccasdevvigasedane cess devsulseacsaesba deve vissdessvsvbaenevssedesoedveteades 2 1 Section II Preventive Maintenance Checks and Services PMCS
101. mperatures above 117 C will shut down the burner fuel supply in the WANDS mode and temperatures above 43 C will shut it down in the SHOWERS mode In the WANDS mode the LTCO switch is bypassed f High Low Pressure Cutout and OVERRIDE Switches The high pressure and low pressure cutout switches are provided to maintain the water pressure within safe operating limits At water pressures above the upper limits the burner fuel supply will be shut down by the high pressure cutout switch It will also be shut down by the low pressure cutout switch if pressure goes below the lower limit g The low pressure OVERRIDE switch is connected in parallel with the low pressure cutout switch thus allowing selective override of the cutout switch This allows the burner to ignite when there is insufficient back pressure no accessories attached The OVERRIDE switch is used when flushing the system with antifreeze and for descaling h RESET Pushbutton and Lamp The pushbutton performs a double function 1 It is used to reset the electrical system after it has been shut down by the photocell as a result of absence of combustion This condition could result from lack of fuel insufficient spark or both 2 The lamp within the pushbutton is provided to inform the operator if ignition has failed lamp lights i Flow Switches The flow switches monitor the flow of water in the system If only one wand is operated one switch will close its contacts and allow fuel
102. n selector switch for continuity between switch contacts Be sure system is shut down and FUNCTION SELECTOR is in OFF position Replace function selector switch page 3 94 if continuity is not measured across each switch segment SW1A1 SW1A2 and SW1A3 16 RESET LAMP IS OFF WHEN BURNER FAILS TO IGNITE NOTE Removal of switch guard page 3 92 is necessary for access Refer to System Schematic and Wiring Diagram page F 1 as necessary Step 0 1 Replace electronic control module page 3 82 If trouble persists proceed to step 1 Step 1 Check jumper wire 35 by measuring continuity between light module on PUSHBUTTON contact X2 and TB3 6 If open tighten jumper connections replace jumper if wire remains open Step 2 Check jumper wire 36 by measuring continuity between light module on PUSHBUTTON contact X1 and TB3 5 If open tighten jumper connection replace jumper if still open Step 3 Check system wiring harness by measuring continuity between the following points TB3 6 to TB2 14 TB3 5 to TB2 13 If continuity is not measured in both tests tighten connections if there is still no continuity replace wiring harness page 3 20 If continuity is measured in both tests replace junction box wiring harness item 13 page 3 85 3 16 Change 3 TM 3 4230 228 23 amp P MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 17 UNABLE TO RESET AT RESET PUSHBUTTON Automatic Shutdown NOTE Removal of switch guar
103. ng cleaning solvent clean mating surfaces of cylinder and cylinder head and wipe off with rags h Place replacement gasket 18 on cylinder i Reinstall head 17 as marked with six nuts 3 and washers 16 fingertight until snug G Using torque wrench cross torque nuts 3 to 16 18 ft lb in sequence described on page 2 43 k Deleted D Reinstall spark plug 2 and connect cap 1 Change 3 2 46 1 TM 3 4230 228 23 amp P 2 15 ENGINE ASSEMBLY MAINTENANCE Continued b Repair Continued 5 Replacement of muffler NOTE Muffler is removed and installed with engine in place on the system a Remove bolts 3 washers 1 lockwashers 2 and guard assembly 4 b Remove bolt 12 washers 9 and 11 and nut 8 c Remove two nuts 7 and lockwashers 6 d Slide flexible hose 10 as far onto heat exchanger as possible and remove muffler 13 e Remove gasket 5 2 46 2 Change 3 TM 3 4230 228 23 amp P WARNING Cleaning solvent is toxic and flammable Use only in well ventilated area Avoid prolonged breathing of fumes Keep solvent away from flames Do not use in excessive amounts and avoid skin contact f Clean muffler mounting surfaces on engine with cleaning solvent and brush and inspect all parts for serviceability g Position new gasket 5 on muffler mounting studs h Install replacement muffler 13 with two nuts 7 and lockwashers 6 making sure flexible hose 10 is
104. ning screw B CW and decreased by turning screw CCW 2 52 Change 3 3 4 TM 3 4230 228 23 amp P Turn the adjusting screw CW or CCW until the engine operates smoothly at the lowest operating speed pump pulley should not be turning Turn jam nut A to lock adjusting screw B in position d Replace 1 2 Removal a Remove fuel line 16 from carburetor b Loosen clamp 17 and carefully separate carburetor from intake manifold Tilt carburetor sideways and disconnect linkage 18 from throttle lever Installation a Connect linkage 18 to throttle lever Linkage must be installed in bottom hole of lever as indicated b Position carburetor on engine intake manifold and tighten clamp 17 c Connect fuel line 16 d Adjust engine speed page 2 51 Change 3 2 53 TM 3 4230 228 23 amp P 2 16 CARBURETOR MAINTENANCE Continued e Repair 1 Disassembly a Remove carburetor from engine page 2 53 b Loosen clamp 2 and remove air filter 1 c Remove main jet 20 bowl 19 and gasket 15 CAUTION Hinge pin 17 is tapered and can be only removed in one direction Attempting to remove in opposite direction may damage carburetor c Turn carburetor upside down and remove hinge pin 17 float 18 and float needle 16 d Remove air adjustment screw 4 and spring 3 e J 5 e Remove jet needle 5 and gasket 6 f Remove adapter 21 and gasket
105. o continuity exists the mode selector switch is defective and must be replaced Refer to Direct Support Maintenance for repair Change 3 TM 3 4230 228 23 amp P MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 8 NO BURNER FUNCTION NO IGNITION 215cc ENGINE Continued Step 6 Check engine electrical output With the engine operating at maximum rpm and the mode selector switch set to either WANDS or SHOWERS check voltage output between terminals TB 2 1 and TB 2 2 If a reading of less than 5 volts AC exists the transformer must be checked prior to referring to Direct Support for stator maintenance The transformer is located on the back of the storage box page 2 40 1 Using a multimeter set to AC scale check for engine output voltage between the connector of the engine yellow wire 83 and black wire 84 and engine ground A voltage reading of at least 25 volts should be observed at maximum engine rpm ENGINE ASSY 215 CC JUNCTION BOX TRANSFORMER Change 3 2 17 1 TM 3 4230 228 23 amp P 2 7 UNIT MAINTENANCE TROUBLESHOOTING TABLE Continued MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 8 NO BURNER FUNCTION NO IGNITION 215cc ENGINE Continued If a reading of less than 25 volts AC is observed refer to Direct Support for engine stator inspection and replacement Step 7 Check photocell resistance When performing a check of the photocell refer to the wiring diagram in App F Op
106. oltage between terminals TB 2 1 and TB 2 3 With the engine operating at maximum rpm and the mode selector switch set to either WANDS or SHOWERS a reading of not less than 5 volts DC should be observed If input voltage to the igniter is 5 volts or greater and there is no spark at the output the igniter assembly is defective Replace igniter assembly page 2 29 Change 3 2 17 TM 3 4230 228 23 amp P 2 7 UNIT MAINTENANCE TROUBLESHOOTING TABLE Continued MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION E 8 NO BURNER FUNCTION NO IGNITION 215cc ENGINE Continued 2 17 0 Step 5 Check Electronic Control Module With the engine operating at maximum rpm and the function selector switch set to either WANDS or SHOWERS check input voltage to electronic module Set multimeter to the AC scale Measure voltage between terminals TB 2 1 and TB 2 2 If at least 5 volts AC voltage is measured and there is no DC output voltage measured between TB 2 1 ground and TB 2 3 the electronic control module may be defective One additional check should be made prior to the replacement of the control module With the engine off set the mode selector switch to either WANDS or SHOWERS Detach the wiring harness plug from the Electronic Control Module Check for continuity between TB 2 3 and TB 2 4 If continuity exists refer to Direct Support Maintenance for repair ELECTRONIC CONTROL MODULE WIRING HARNESS PLUG If n
107. onnect fuel and air hoses as indicated Air hose goes to smooth surface nipple on top of fuel pump carburetor supply hose goes to barbed nipple and fuel supply hose from fuel can goes to bottom nipple on fuel pump f Reinstall drain plate 10 with two bolts 13 lockwashers 12 and washers 11 2 Replacement of Spark Plug a Disconnect plug cap 1 from spark plug 2 b Remove plug 2 c Check gap replacement plug for 0 035 to 0 040 inch gap 215cc engine and install d Reconnect cap 1 on spark plug 2 44 Change 3 TM 3 4230 228 23 amp P aie AIR HOSE 27 TO ENGINE CRANKCASE FUEL HOSE TO CARBURETOR NX o i VY a N TO FUEL 8 SUPPLY oo Change 3 2 45 TM 3 4230 228 23 amp P J 2 15 ENGINE ASSEMBLY MAINTENANCE Continued b Repair Continued 3 Deleted 4 Replacement of cylinder head and head gasket a Disconnect cap 1 from spark plug b Remove spark plug 2 c Remove six nuts 3 and washers 16 d Mark position of head in relation to cylinder to ease installation CAUTION A slight tap with a mallet may be necessary to loosen the head Be careful not to damage fins e Prior to removing the cylinder head 17 inscribe a mark to note which side is facing carburetor f Remove cylinder head gasket 18 2 46 Change 3 TM 3 4230 228 23 amp P g Remove as much carbon as possible by scraping with a putty knife and usi
108. pect float needle and gasket for wear Replace entire carburetor if either is worn 4 Assembly a Engage float needle 16 in hinge slot of float and reinstall float 18 on carburetor with hinge pin 17 b Reinstall gasket 15 bowl 19 and jet 20 c Install filter 1 with clamp 2 d Reinstall carburetor page 2 53 All data in paragraph 2 17 pages 2 56 and 2 57 deleted Change 3 2 55 TM 3 4230 228 23 amp P 2 18 JUNCTION BOX ASSEMBLY MAINTENANCE This task consists of Repair a Deleted b Deleted c Replacement of Turnlock Fastener INITIAL SETUP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Pliers Special Item 3 Figure C 61 Tool Camloc Fasteners Item 2 Figure C 61 Cleaning Solvent Item 21 App D Materials Required Brush Varnish Item 4 App D Equipment Conditions Engine shut down and cold a Deleted b Deleted c Replacement of Turnlock Fastener 1 2 3 4 5 6 7 2 58 Using special pliers grasp stud assembly 1 with fork of pliers below stud shoulder and compress spring of stud assembly with pliers Remove stud assembly Insert a screwdriver in split of split ring 2 and remove ring with a twist of the screwdriver Remove grommet 3 Clean stud mounting hole using cleaning solvent and brush and allow to dry Insert grommet 3 through stud mounting hole and secure with split
109. questionable check alignment with straight edge as shown in diagram Loosen bolts 10 and shift pump to align with pulley c Connect hose assembly 7 to coil inlet assembly at swivel and connect return hose from coil inlet assembly to 45 elbow 11 on water inlet assembly d Install and adjust belts page 2 26 Reinstall panel 2 with four screws 3 lockwashers 4 and washers 5 e f Reinstall drive side panel 1 2 76 Change 3 ENGINE PULLEY STRAIGHT EDGE WATER PUMP PULLEY PULLEYS PULLEYS ALIGNED MISALIGNED Ms aie aS J enna AX SX g Hi ROX See NIRS ins RON j AU T y ZZ SS 7 SSS or TM 3 4230 228 23 amp P b Repair Repair consists of cleaning disassembly of pump and removal of debris and replacement of hose assembly and coupling 15 1 Replacement of hose assembly and coupling a Remove bolts 3 lockwashers 4 washers 5 and panel 2 b Disconnect hose 7 at coil inlet assembly swivel c Disconnect hose 7 at pump assembly only if damaged and remove d Disconnect coupling 15 at pump and remove Install replacement coupling using pipe sealant item 18 App D e Install replacement hose 7 between coil inlet assembly and water pump with pipe sealant item 18 App D f Replace cover 2 with screws 3 lockwashers 4 and washers 5 Change 3 2 77 TM 3 4230 228 23 amp P 2 25
110. reference purposes LIST OF EFFECTIVE PAGES Dates of issue for original and changed pages are Ofigijal secarei 0 Change ccsssccccceesesesseee T lesers CHANGE sorene iaria PANTA Change cc cccccceeees TOTAL NUMBER OF PAGES IN THIS PUBLICATION IS TBD CONSISTING OF THE FOLLOWING Page No Front Cover Back of Front Cover Change instruction sheet sheets 1 and 2 of 2 Change instruction sheet sheets 1 and 2 of 2 Change instruction sheet sheets 1 and 2 of 2 a b blank A B i iti iv v blank 1 0 1 1 1 2 1 2 1 1 2 2 blank Added 1 3 1 5 1 6 1 8 2 1 2 2 2 2 1 2 2 2 Added 2 3 blank 2 4 2 9 2 12 2 18 2 19 2 20 2 21 2 21 0 2 21 38 2 21 4 2 21 6 Added 2 21 7 blank 2 22 2 23 2 24 2 25 2 26 2 27 2 29 2 30 2 31 Change No 3 3 3 SCrFPOWOWWWOWRrRWWWWOWWWW OW uw u Page No 2 32 2 33 2 34 2 35 2 37 2 38 3 39 2 40 2 40 1 2 40 2 Added 2 41 2 46 2 46 1 2 46 3 Added 2 47 2 47 0 2 47 1 2 48 2 51 2 55 2 58 2 59 2 60 2 61 2 62 2 69 2 70 2 71 2 72 2 73 2 81 2 82 2 84 2 85 2 85 1 blank 2 86 2 87 2 88 2 91 2 92 2 93 2 94 2 95 2 96 2 98 2 99 2 102 2 106 2 107 2 108 blank Added Zero in this column indicates an original page 15 September 1989 2 July 1990 18 September 1993 Change No WOoOwWwowrFwWoww
111. ring 2 as follows a Position split ring on narrow end of mandrel part of camloc fastener b Position larger end of mandrel inside of grommet c Place handle over mandrel and push against panel until ring snaps in place Grasp replacement stud assembly 1 with fork of pliers below shoulder of stud assembly and squeeze handles to compress stud assembly spring Insert stud assembly through grommet 3 and release pliers Change 3 TM 3 4230 228 23 amp P GROMMET SHOULDER PANEL GROMMET HANDLE MANDREL Change 3 2 59 TM 3 4230 228 23 amp P 2 19 PHOTOCELL AND TEE ASSEMBLY MAINTENANCE This task includes Repair a Removal and Disassembly b Assembly and Installation INITIAL SET UP Tools Required Tool Kit General Mechanics Automotive SC 5180 95 N26 Materials Required Brush Varnish Item 4 App D Cleaning Solvent Item 21 App D Locking Compound Item 6 App D Equipment Condition Engine shut down and cold Repair a Removal and Disassembly 1 2 3 4 5 6 7 Disconnect photocell cooling hose assembly 1 from nipple 2 Disconnect photocell assembly wires 33 and 34 from junction box TB2 5 and TB2 6 and pull wires out of junction box Being careful that mica window doesn t fall remove two bolts 10 washers 12 lockwashers 11 mica window 13 spacer 14 and tee 3 Loosen setscrew 9 and remove photocell ass
112. rpm indicator in place rotate dial 10 to the left then right Watch wire 9 as dial is moved When wire vibrates at maximum swing stop rotating dial Read dial indication 5 Ifrpm indication is less than 4200 or greater than 4400 go to step 7 6 Ifrpm indication is between 4200 and 4400 no carburetor adjustment is required go to step 11 VISUAL INDICATION OF MAXIMUM SWING RPM U MIN IN 1000 Change 3 2 51 TM 3 4230 228 23 amp P 2 16 CARBURETOR MAINTENANCE Continued b Adjust Engine Speed Continued 7 On carburetor 15 turn adjustment screw 12 fully CW then quickly back off 1 1 2 turns If rpm indicator wire vibrates at maximum swing engine rpm is now between 4200 and 4400 go to step 11 If not proceed with step 8 8 Loosen screw 13 on speed setting disk 14 slightly 9 Set dial indicator to exactly 4300 rpm and slowly turn speed setting disk 14 until rpm indicator wire vibrates at maximum swing Turning the speed setting disk CW decreases and CCW increases engine speed 10 While holding speed setting disk 14 in place tighten screw 13 when maximum swing is reached at 4300 rpm 11 Shut down engine c Idle Speed Adjustment Engine idle speed is adjusted in the following manner 1 Operate engine until operating temperature has been obtained approximately 5 minutes 2 Loosen jam nut A until adjusting screw B moves freely NOTE Idle Speed is increased by tur
113. ry or death may result if personnel fail to observe all safety precautions Step 1 Step 1 1 Step 2 NOTE See System Schematic and Wiring Diagram page F 1 as required Check for electrical output from engine power generating coil at TB2 2 and TB2 1 If 7 0 VAC minimum is not measured at maximum engine throttle go to step 1 1 Set multimeter to the AC scale 50 volts maximum Detach the yellow engine electrical output wire from the black transformer input wire at the connector Measure engine output between yellow wire and engine ground with the engine operating at maximum rpm Reading should be 23 VAC minimum If no reading is observed the stator must be replaced page 3 109 Disconnect junction box wiring harness assembly from control module in junction box and check for loose or improperly attached connectors and continuity as follows TB2 2 to P1 Z TB1 9 toP1 G TB2 4 to P1 Y TB1 10 to P1 J TB1 12 to P1 X TB1 6 to P1 C TB1 11 to P1 A TB1 4 to P1 b TB1 7 to P1 D TB1 5 to P1 B TB1 8 to P1 F TB1 3 to Pl a TB2 6 to P1 M TB2 5 to P1 L TB2 14 to P1 W TB2 13 to P1 V TB2 12 to P1 P TB2 11 to P1 N If continuity is not measured in all tests tighten attaching screws and or crimp on terminals as necessary If trouble persists replace wiring harness item 13 page 3 83 Change 3 3 11 TM 3 4230 228 23 amp P 3 3 DIRECT SUPPORT MAINTENANCE TROUBLESHOOTING TABLE Continued Table 3 1 Direct Support Troubleshooting
114. spect for serviceability Discard unserviceable items 2 92 Change 1 TM 3 4230 228 23 amp P SHOWERS MID FO 6 T ES 7 SHOWERS W HOSE 2 Assembly NOTE When assembling shower sections use locking compound to install jets couplings and fittings a Install reducer 10 and coupling half 9 on pipe od b Install jets 2 on pipe 1 c Install jet 3 on pipe 8 d Install hose assembly 4 on pipe 8 e Install jets 6 on pipe 7 f Install jet 5 in hose assembly 4 Change 1 2 93 TM 3 4230 228 23 amp P 2 34 SPRAY WANDS MAINTENANCE This task includes a Replace b Repair 1 Disassembly 2 Assembly INITIAL SET UP Tools Required Tool Kit General Mechanics Automotive SC 5180 90 N26 Materials Required Locking Compound Item 6 Appendix D Equipment Condition Spray wands disconnected from decontaminating apparatus a Replace Replace spray wand if spray gun 14 is unserviceable b Repair 1 Disassembly a Unlatch clamp 8 and pull back plastic sleeve away from spray gun b Unscrew nipple 10 swivel 13 reducer 12 and coupling 11 from spray gun 14 as an assembly c Remove sleeve 9 and clamp 8 d Remove coupling 11 e Remove reducer 12 and nipple 10 from swivel f Remove nozzle 5 washers 2 and 4 and disk 3 g Remove adapter 6 plastic tube 7 and pipe 1 2 94 TM 3 4230 228
115. t Support Maintenance Manual Including Repair Parts and Special Tools List for DECONTAMINATING APPARATUS POWER DRIVEN LIGHTWEIGHT M17 NSN 4230 01 251 8702 includes 1580 gallon Water Tank and 197cc Engine M17 NSN 4230 01 303 5225 includes 3000 gallon Water Tank and 197cc Engine M17A1 NSN 4230 01 346 1778 includes 1580 gallon Water Tank and 215cc Engine M17A2 NSN 4230 01 346 3122 includes 3000 gallon Water Tank and 215cc Engine M17A3 NO 3 4230 228 23 amp P REPORTING ERRORS AND RECOMMENDING IMPROVEMENTS You can help improve this manual If you find any mistakes or if you know of a way to improve the procedures please let us know Mail your letter or DA Form 2028 Recommended Changes to Publications and Blank Forms located in the back of this manual directly to Commander US Army Soldier and Biological Chemical Command ATTN AMSSB RIM L N Kansas St Natick MA 01760 You may also submit your recommended changes by E mail directly to lt amssbrim natick army mil gt A reply will be furnished directly to you Instructions for sending electronic 2028 may be found at the back of this manual immediately preceding the hard copy 2028 DISTRIBUTION STATEMENT C Distribution authorized to U S Government agencies and their contractors to protect technical or operation information This determination was made on August 27 1987 Other requests for this document will be referred to Site Manager Soldier and Biological Chemical Co
116. t Support Maintenance if trouble persists or if switch is defective FLOW SWITCH BODY SSS Ss D c 22 NO OVERRIDE CAPABILITY Low pressure override switch open Replace override switch page 2 24 2 21 TM 3 4230 228 23 amp P 2 7 UNIT MAINTENANCE TROUBLESHOOTING TABLE Continued MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 23 ENGINE FAILS TO START OR STOPS 215cc ENGINE 2 21 0 Step 1 Step 2 Check if starter engages engine crankshaft and crankshaft can be turned Very little force will be required to pull starter rope if it fails to engage If starter does not engage or free wheels replace starter page 2 47 2 If starter engages and handle cannot be pulled remove starter to isolate problem to starter or engine Replace starter if internally bound up If engine crankshaft is locked notify Direct Support maintenance Check and inspect spark plug for cracks dirt burned electrodes and incorrect gapping Gap should be 0 035 0 040 inch 0 89 1 0 mm If plug is cracked or burned obtain replacement plug gap as necessary and go to next step If plug appears dirty but otherwise intact clean with wiping rags Item 17 App D or abrasive paper Item 13 App D regap as necessary and go to next step WARNING When checking spark plug for adequacy of spark be sure not to touch plug or cap with bare hand Failure to heed this warning may result in in
117. ts the common malfunctions which you may find during the operation or maintenance of the Decontaminating Apparatus or its components Look at the Malfunction List until you find the one that you are having Then go to the page listed and perform the troubleshooting test or inspections listed therein The corrective action step will direct you to the proper paragraph for performing the corrective action b This manual cannot list all malfunctions that may occur nor list all the tests or inspections and corrective actions If a malfunction is not listed or it is not corrected by the listed corrective actions notify your supervisor c Troubleshooting of the M17 may require the system to be in operation Read and be thoroughly familiar with the operating procedures and warnings which are found in your Operator s Manual TM 3 4230 228 10 prior to working on your equipment 2 6 SYMPTOM INDEX Malfunction No Malfunction Page 21 Both jets on only one wand activated 2 21 13 Burner continues to operate 2 19 10 Burner cycles excessively 2 18 14 Elapsed time HOURS meter inoperative 2 19 1 Deleted 23 Engine fails to start or stops 215cc Engine 2 21 0 2 Deleted 24 Engine runs roughly or lacks power speed 215cc Engine 2 21 5 3 Deleted 25 Engine overheats 215cc Engine 2 21 7 4 Deleted 26 Excessive noise and vibration 215cc Engine 2 21 7 6 Low water flow inability to develop pressure 2 14 8 No burner function no ignition 215cc En
118. ued 6 Replacement of Mica Window NOTE When removing hardware support mica window and spacer to keep them from falling a Remove two bolts 31 washers 32 and lockwashers 37 b Pull photocell and tee assembly 33 away from heat exchanger and remove mica window 34 and spacer 35 c Clean mica window using rags and inspect for cracks Discard if cracked d Using a clean rag clean carbon deposits from eye of the photocell in the photocell and tee assembly 33 e Position replacement mica window 34 between spacer 35 and photocell and tee assembly 33 f Install with two washers 32 lockwashers 37 and screws 31 2 30 Change 1 TM 3 4230 228 23 amp P c Adjustment of Water Pump Belts 1 2 3 4 5 6 7 Remove drive side panel 10 page 2 32 Loosen water pump belt tensioner attaching bolts 41 Move tensioner 38 as far left as possible Move water pump belt tensioner 40 to the right until roller 38 just touches belts 12 Move tensioner 38 an additional 1 4 inch to the right and securely tighten bolts 41 Start engine and operate unit for approximately 30 minutes Shut unit down and carefully reach in and touch fan hub 36 This hub is the drive pulley for the water pump If hub surface is hot to touch belts 12 need additional tightening Tighten as follows a Using a screwdriver or other suitable available tool scribe position of left
119. ull starter handle several times d Read compression gage Disassemble and replace head gasket if compression of less than 105 psi is indicated page 3 115 If the cylinder is scored replace engine page 3 36 Step 2 Remove and disassemble clutch page 3 120 and inspect for worn bearings loose or broken clutch springs or worn clutch shoes Repair clutch by replacing defective clutch components 22 Deleted 23 Deleted All data on page 3 18 3 3 18 4 blank deleted 3 18 2 Change 3 TM 3 4230 228 23 amp P Section II DIRECT SUPPORT MAINTENANCE REPAIR PROCEDURES Page General rana sites Ma cena deeds tee bons s tod beak ha ela edad eben 3 19 Pump Heater Assembly Maintenance 3 20 Outlet Assembly Maintenance ccccceee 3 26 Coil Inlet Assembly Maintenance 3 30 Engine and Fan Assembly Maintenance 3 36 Engine Assembly Maintenance 0006 3 44 Junction Box Assembly Maintenance 3 82 Burner Fuel System Maintenance 06 3 86 Control Panel Assembly Maintenance 3 90 Tool Box Assembly Maintenance 006 3 98 Heat Exchanger Maintenance 00 ccee 3 100 3 4 GENERAL Page Frame Maintenance sssssesssesessseessssrersseresssressee 3 106 Engine Long Block Assembly Maintenance 215cc Engine neirens e a enea 3 109 Engine Short Block Assembly Maintenance P
120. ump belts 12 ations FE oN FRYER KY RRO ESRR IR RRR ROTOARE EOIN SORA A O Y 2 26 Change 3 TM 3 4230 228 23 amp P e Install two replacement belts on engine drive assembly and water pump pulley f Reinstall fuel pump belt page 2 26 h Perform belt adjustment procedure 2 31 4 Replacement of Voltage Tripler and High Voltage Cable WARNING Voltage tripler may contain dangerously high voltage even when unit is not operating Do not touch tripler or associated wires with bare hands unless tripler has been discharged a Using a screwdriver with insulated plastic handle discharge voltage tripler by touching at the same time both terminals on voltage tripler b Disconnect output cable 22 from igniter plug c Disconnect igniter cable 16 at voltage tripler 21 d Disconnect grounding cable 23 from voltage tripler 21 fy lis om Hf G fi TERMINALS e Remove two nuts 20 screws 17 washers 18 and 19 and voltage tripler 21 f Remove screw 24 washer 25 and grounding cable 23 2 27 TM 3 4230 228 23 amp P 2 9 PUMP HEATER ASSEMBLY MAINTENANCE Continued 4 Replacement of Voltage Tripler and High Voltage Cable Continued g Clean voltage tripler mounting surface using cleaning solvent and brush h Position replacement voltage tripler 21 on frame and secure with two screws 17 wash
121. ure is low proceed with step 2 Remove drive side panel page 2 32 and check for worn or damaged fuel pump belt and belt tensioner Replace belt page 2 26 if broken worn or damaged repair replace tensioner page 2 38 if unserviceable Check for return fuel flow by unscrewing burner fuel can cap and lifting hoses up high enough so that return flow from smaller hose is visible and bottom of supply hose is still submerged Check fuel lines and fittings for obstructions or loose fittings If steady vigorous return flow is noted replace fuel pressure regulating valve page 2 65 If steady vigorous flow is not noted repair filter page 2 68 and if trouble persists check fuel lines and fittings for obstructions or loose connections Check if Light Emitting Diodes LEDs on side of electronic control modules are illuminated If both LEDs are on in shower mode or with both wand triggers depressed service burner assembly page 2 79 If only one LED is on in shower mode or with both wand triggers depressed check and clean upper flow switch page 2 15 If trouble persists notify Direct Support Maintenance DS2 DS1 10 BURNER CYCLES EXCESSIVELY NOTE Burner cycling is normal in WANDS but can be reduced in SHOWERS by adjusting the flow of fuel at the manual fuel valve Notify Direct Support Maintenance if this condition occurs 2 18 Change 3 TM 3 4230 228 23 amp P MALFUNCTION TEST OR INSPEC
122. ut 1 and compression sleeve 3 Coat bulb 14 of temperature gage with insulating compound and install in adapter 15 of outlet assembly Hand tighten Reconnect sensing unit 2 of manometer assembly to top of connector 4 Install low temperature cut out switch 10 as follows a Apply a coat of insulating compound to unthreaded part of switch assembly 10 area B b Apply a light coat of sealing compound to threads area A of switch assembly 10 c If required i e new switch install sleeving 6 terminals 8 and markers 7 and 9 d Route switch wires to junction box and secure wire number 12 to TB3 12 and wire number 13 to TB3 11 Secure with tiedown straps as required Install high temperature cut out switch 11 as follows a Apply a coat of insulating compound to unthreaded part of switch assembly 11 on area B b Apply a light coat of sealing compound to threads area A of switch assembly 11 c If required i e new switch install sleeving 6 terminals 8 and new markers 12 and 13 Secure with tiedown straps as required d Route switch wires to junction box and secure wire number 10 to terminal board TB3 10 and wire number 11 to TB3 12 e Reinstall switch guard page 3 92 TM 3 4230 228 23 amp P N R a i i Ry NQ W W R V F SoS sy OA y XJ Change 3 3 29 TM 3 4230 228 23 amp P 3 7 COIL INLET ASSEMBLY MAINTENANCE This
123. wDw wWwWwwwowow wWwwoworaow TM 3 4230 228 23 amp P Page No 3 1 3 2 3 5 3 19 3 20 3 21 3 22 3 23 3 24 3 26 3 27 3 28 3 29 3 34 3 34 1 3 34 2 Added 3 35 3 40 3 40 1 3 40 2 Added 3 41 3 44 3 45 3 82 3 85 3 86 3 89 3 90 3 103 3 104 3 105 3 106 3 112 3 112 1 3 112 4 Added 3 113 3 114 blank 3 115 3 116 3 117 3 120 3 124 A 1 A 2 blank B 1 B 3 B 4 B 5 Change 3 Change No WWOWOWWWWWWwWWOWOWrROWWO NWwOWWWD W w TM 3 4230 228 23 amp P LIST OF EFFECTIVE PAGES Continued Page Change Page Change Page Change No No No No No No B 6 B 9 B 10 blank 3 Figure C 25 C 29 1 3 C I 1 C I 15 C I 16 3 C 1 C 7 3 Figure C 32 C 32 1 3 blank Figure C 1 C 3 1 3 Figure C 33 2 D 1 D 3 D 4 blank 3 Figure C 4 0 C 33 1 3 E 1 3 C 4 1 3 Figure C 34 C 41 1 3 E 6 3 Figure C 5 C 5 1 3 Figure C 42 2 F 1 F 2 blank 2 Figure C 6 2 C 42 1 C 44 1 3 Index 1 Index 6 3 C 6 1 3 Figure C 45 2 Sample DA Form 2028 3 Figure C 7 0 C 45 1 C 55 1 3 DA Form 2028 3 C 7 1 3 Figure C 56 2 Authentication Page 0 Figure C 8 0 C 56 1 C 58 1 3 Back Cover 3 C 8 1 3 C 60 1 3 Figure C 9 C 15 1 3 Bulk 1 3 Figure C 22 C 22 1 3 C 61 1 3 Zero in this column indicates an original page B Change 3 TM 3 4230 228 23 amp P TECHNICAL MANUAL HEADQUARTERS DEPARTMENT OF THE ARMY WASHINGTON D C Unit and Direc
124. wdriver 2 32 Change 3 TM 3 4230 228 23 amp P 3 Remove grommet 2 4 Clean stud mounting hole using cleaning solvent and brush and allow to dry 5 Insert grommet 2 through stud mounting hole and secure with split ring 1 as follows a Position split ring on narrow end of mandrel part of camloc fastener b Position larger end of mandrel inside of grommet c Place handle over mandrel and push against panel until ring snaps in place 6 Grasp replacement stud assembly 3 with fork of pliers below shoulder of stud assembly and squeeze handles to compress stud assembly spring 7 Insert stud assembly through grommet 2 and release pliers Pit 2 ff a M o inf iy EA Sy i m jl fi y GROMMET PLIERS SHOULDER azz PANEL TM 3 4230 228 23 amp P 2 11 BURNER FUEL PUMP MAINTENANCE This task consists of a Replace 1 Removal 2 Installation b Repair INITIAL SET UP Tools Required Tool Kit General Mechanics Automotive SC 5180 90 N26 Materials Required Cleaning Solvent Item 21 Appendix D Brush Item 4 Appendix D Locking Compound Item 6 Appendix D Equipment Conditions Engine shut down and cold a Replace 1 Removal a Remove drive side panel page 2 32 b Remove fuel pump belt 6 page 2 26 c Disconnect spring 12 from fuel pump by loosening sockethead screw 4 d Disconnect hose assemblies 1 5
125. ximately 35 40 C 85 100 F Low pres sure in system caused by disconnected output devices will prevent burner from igniting unless OVERRIDE switch is activated WARNING Chemicals used in descaling process are irritating to the skin and eyes Wear protective clothing and goggles and exercise care when handling chemicals k Slowly mix 15 lb approximately one level gallon can of sulfamic acid with the 30 gallons of warm water in the drum l Maintain the solution within a temperature range of 35 40 C 85 100 F using OVERRIDE switch Operate decontaminating apparatus for approximately 90 minutes CAUTION Lift suction hose assembly occasionally to make sure that no blockage has occurred m Before the end of the 90 minute recirculation period prepare the sodium carbonate solution by mixing 12 pounds one gallon can of sodium carbonate with 25 gallons of water in one of the 32 gallon cans CLEAR polls l BURNER See ASSEMBLY SODA Near ASH SOLUTION 1 LL 32 GAL CAN 2 83 TM 3 4230 228 23 amp P 2 27 HEAT EXCHANGER MAINTENANCE Continued 2 84 n When the circulation period is over throttle engine back until the water pump stops then transfer the suction hose into the sodium carbonate solution Return engine throttle to MAX position and lift out pressure hoses to observe flow When all descaler is pumped out as seen by a brief stop of flow from pressure hoses and change of color transfer the pressure

draft c3 tm 3-4230-228-23&p technical manual

Contents

Download Pdf Manuals

Related Search

Related Contents

draft c3 tm 3-4230-228-23&amp;p technical manual

Contents

Download Pdf Manuals

Related Search

Related Contents

draft c3 tm 3-4230-228-23&p technical manual