Installation and Service Manual Air Powered - Power
Contents
1. 100183 High pressure booster nozzle s Hemue2 e 6 s O ring standard 1 i d x 1 8 5 LI O ring high pressure 7 8 i d x 1 8 c s Back up washer standard 1 i d x 1 8 5 washer high pressure 7 8 i d x 1 8 5 10 100160 Standadstptibe 1 10082 MHighpressuestptibe 1 Standard piston rod assembly 1 rod 100180 High pressure piston rod assembly 7 8 rod High pressure piston rod assembly 7 8 rod Back up washer 5 i d x 3 16 5 16 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 11 0 Check Valve Part List amp Drawing Part No 100540 Pt reer Number 115 100549 Chock valve assemby 1 1 159 check vate body 6 10 09 check vatve cap 1 1m Pistonsoring 4 i910 Hexhead cap screw 6 75 mses 1 G 8 1 g s om Song 1_ 18 1059 1 ae ring items contained in valve repair kit 100221 o 1 1 rr bd E is qe 00 0 0 90090 5 POLUEP POMKXKER 17 81 1304 REV OC Installation and Service Manual Air Po2. 5 AS 6 POWEF PALCKEF 22 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear NOTE Correct oil levels both tanks on landing gear is very important CAUTION Check valve parts spring loaded POLUEPHPOMA AER a b C d e a e 16 0 Checking CHECKING OIL LEVELS Procedure for checking and filling both oil tanks Main Oil Tank Tank is located behind controls on control box Fill tube to left side of control box Move master valve handle to up travel right When legs are fully retracted and air is no longer heard moving remove fill tube cap Fill main oil tank until additional oil will not be accepted When legs are fully retracted and air is no longer heard moving remove fill tube cap Fill main oil tank until additional oil will not be accepted 2 Retract Oil Tank Tank is located to left of control box Move master valve to down park left and extend both legs to ground Cycle booster valve right side of control box manually or hold auto booster button in on auto booster system until both legs are fully extended When air is no longer heard moving remove retract oil side tank fill plug and fill until additional oil will not be accepted Replace fill plug Move master valve to up travel and fully retract both legs Cycle system 2 complete cycles to insure air is remov
3. Note Install with lips facing blind end POLUEP POMKXKER 38 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 26 0 Power Valve Assembly Part No 101681 PowervaNe valve e s fonaa mam 5 Streettee 1 orma 1 _ 7 091057 Powervavebuton 1 _ orang oms tH POLUEP POMKERPR 39 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 27 0 System Operation Auto Booster CONTROL BOX HYDRAULIC CIRCUIT OPERATION The Landing Gear Auto Booster Control Box is an air powered hydraulic power supply designed to operate two Landing Gear Legs The Control Box will supply high pressure hydraulic energy to extend the legs or lift the trailer and low pressure hydraulic to retract the legs For best results lock engine throttle at 1000 1200 ppm The Control Box has six 6 major components They are 1 Master Control Valve The Master Control Valve has two parts the rear or air portion and the front or oil return block The Master Valve is used to extend or retract the legs 2 Leveling Valve The Leveling Valve is used to adjust for uneven ground or load conditions and slows down or stops one leg or the other 3 Booster Valve The Booster Valve is used to cycle the Booster Pump It cyc
4. 1 Tee connector 3 8 2 Pressure protection valve 3 8 NPT 50 55 PSI and integral check valve 3 Check valve soft seal 4 Gladhand NOTE Figure 2 Item Descriptions 1 Tee connector 3 8 NPT 2 Pressure protection valve 3 8 NPT 50 55 PSI and integral check valve POWEF PALCKEF Installation and Service Manual Air Powered Hydraulic Landing Gear 4 0 Front Mount Installation cont In final preparation to move the trailer the operator returns the tractor s supply gladhand to the trailer s supply line connection This returns the truck s air system to normal while providing air via the tee 1 and pressure protection valve 2 to positively hold the legs up Check valve 3 prevents loss of air through the 3 gladhand Figure 2 page 7 is a circuit showing a hook up without addition of the 3rd gladhand While the needs of landing gear are satisfied the trailer s parking brakes will not be set until landing gear s operation is complete and the supply line is vented If this type of hook up is desired an alternate method of applying the parking brakes while landing gear is operational should be provided Connect 1 2 0 0 nylon tubing from the bottom port of each leg to a union tee midway between each leg Connect 1 2 0 D nylon tubing from third connection of tee t o bottom port of retract oil tank step 4 Check to insure shunt valves are installed per item 14 on page 5 Connect 3 8 H P hose fr
5. 7 Q S E 5 N Fre 3015 5853 4 ON MEM IS 1404 931 mo 3unssa3ud S931 OE x LEGS EXTEND RAPID TO GROUND 2 22272277777 27272 JATIVA 8315 4 1304 401 931 1304 401 937 3015 OL 3015 OL 32 POWEF PALCKEF Installation and Service Manual Air Powered Hydraulic Landing Gear 81 1304 REV OC 9 i 5 Q C 2 45 5 Q Q Q N 38055344 AYNSS3Yd MOT 110 3HunsSaud ON 110 34 0553 4 MIV 3unsSadud x nN X XA KR X RK 2 pe P P E Z2 JATIVA H3lSVIW m ES gt gt 1304 01 931 3415 1108 931 ff Sfi 3415 OL 1HOd WOLLOS8 931 710 j 1015 guno OL LEGS EXTEND LIFT TRAILER 1304 401 931 3415 8uf19 33 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 22 0 Auto Booster Control Box External Part No 101676 7727 01057 Power vate buton 1 _ 4 Arvavebuton 1 775 1057 Handle andpinit _ 1 _ 7 wmm tx side cover
6. Fluid level port Figure 1 Fluid fill ca jy Air Pressure Hook Up TENA Step 4 3rd Gladhand ow 3 7H rij i E P T s oh os E E 1j E Tg j rM a lH a 4 i Eran j i LL L 5 1 Pace EN _ UL m 5 E 1 6 tep 5 2 u Y a E i Yt gt EF YT D au SN es _ NN I E mmc E T T gt a E I r 1 at 12 1 FP xm E e j E m E gt OT Cd Laid Fi m T 1 24 1 a m Figure 2 Air Pressure Hook Up Two Gladhands POWEF PALCKEFP 7 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 5 0 Rear Mount Installation Step 1 Determine location for landing gear legs Normally legs will be mounted between the rear tires You should allow 6 inches of ground clearance 4 inches absolute minimum R
7. not cycle Booster units only section below diagnose the actual cause Booster pump of the problem and the unit cylinder tube permanently repaired damaged or rusted on the Remove rust or replace Booster pump does not cycle tube 1 Disconnect air from unit 30 0 Auto Booster Only Troubleshooting 2 Cycle master valve to vent air pressure from system 3 Switch the leg lines put high pressure line on the bottom port and the low pressure line on the top port of both legs 4 Connect air to trailer 5 Put master valve in down park position 6 Cycle booster valve as required to lower trailer or push logic valve or pull back knob on auto booster system 7 Repeat steps 1 and 2 8 Return leg lines to their proper ports 9 Do not operate unit again until the system is repaired noted above POLUEP PACATEPR 44 PROBLEM If the booster automatically cycles in one direction but not the other the probable cause is the pilot valves Item 2 page 37 The pilot valve on the blind end power valve end pushes the power valve in The signal is routed through the logic valve assembly part number 101573 The pilot valve on the nozzle end pushes the power valve out The easiest way to determine if a signal is working is to disconnect the signal line from the quick exhaust on the pilot valve the red tube s see page 37 and manually cycle the booster pump with the power valve black kno
8. 3 4 i d x 1 8 c s 100328 18 1022 Roll pin 5 32 dia x 1 19 1 13 15 1001 Roll pin 5 32 dia x 1 Ig 15 Valve spool 100133 Rear adapter plate 15 1003 Hex head cap screw 1 4 20 x 3 4 lg 16 16 1001 Lock washer 1 4 O ring 7 16 i d x 3 32 C s 09 1002 Air valve 07 1017 Connector 3 8 npt x 1 2 comp 07 1016 45 elbow 3 8 npt x 1 2 comp 10 1002 Grease fitting Gasket 2 1 1 1 1 1 1 1 1 2 2 2 2 18 1011 Roll pin 1 4 dia x 1 lg 2 202 07 1028 Branch 3 8 npt x 1 2 1 2 9 4 5 6 8 9 0 1 2 3 4 5 Contained in valve repair kit 100224 PIOLUEP POMKER 36 Part No 101583 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 24 0 Auto Booster Assembly Part No 101680 Number 101682 101578 must be ordered separately Order tube kit part no 101586 POWEF PALCK EF 37 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 25 0 Auto Booster Sub Assembly Part No 101678 15 3 _ Ci 1 1 10 Besere Piston roa assemy 1 mew 1 Order repairktparino 100408
9. If shipping damage is found notify carrier at once The carrier is responsible for all repair and replacement costs resulting in damage from shipment For most current manual see http www powerpackerus com Product descriptions and specifications are subject to change For specific versions related to your product contact us 2 0 Safety Issues Read all instructions warnings and cautions carefully Follow all safety precautions to avoid personal injury or property damage during system operation Power Packer cannot be responsible for damage or injury resulting from unsafe product use lack of maintenance or incorrect product and or system operation Do not remove warning labels tags or decals Contact Power Packer when in doubt as to the safety precautions and operations This manual follows a system of safety alert symbols signal words and safety messages to warn the user of specific hazards Failure to comply with these warnings could result in serious personal injury or death as well as damage to equipment or other property This is a Safety Alert Symbol that appears throughout this manual is used to alert you to potential physical injury hazards Pay close attention to Safety Alert Symbols and obey all safety messages that follow this symbol to avoid possible serious personal injury or death Safety Alert Symbols are used in conjunction with certain Signal Words that call attention to safety messages or property damage me
10. Legs leak from retracted position to ground Always support trailer in proper manner and Master valve i loosen fittings and hoses handle left in ui NE In up carefully to vent possible center position 1 trapped pressure Use Reconnect air supply eye protection and trailer supports Problem Legs do not lift load legs free travel but lift load slowly or not at all Build air pressure to at least Low air pressure Booster pump does not cycle 100 psi Unit lifts load to about the same position Low oil level each time Then the booster pump cycles Fully retract legs Fill main main oil tank but there is no lift If the tank level is very tank to bottom of fill port Use eye protection low the unit may not lift at all Check valves in e Rebuild booster pump Booster pump cycles main oil tank full but m booster nozzle Replace steel fittings if unit does not lift Y are not sealing required Problem only occurs in cold weather Mis aw system Vent hole in following IS not a SUIS booster pump Booster pump does not cycle nom for the problem but is an olugged emergency measure to be 2 Air or oil leaking 1 booster pump vent Rebuild booster pump used as a one time remedy 5 az TIPS E E 11 53 Be sure unit is serviced to ooster pump will Auto booster logic valves malfunction Auto See For uto ooster Only h
11. 2 rod 15 1004 15 021 _2 163002 161002 15 012 15 012 Hexhead cap screw DII ed 7 100278 100279 Cylinder head retainer Retaining ring 1 1 1 1 4 1 1 1 1 1 1 Res 7 LA 2 2 v 10 76 ft o m wam 2 A _ 2 T __ 2 4 ZZ m __ gt YAUA G9 m m __ 1 a 31 100346 100348 Split collar assembly not shown State the part number and part description when ordering Notes 1 These items are contained in check valve repair kit part no 100221 and are not available on an individual basis 2 These items are contained in leg repair kit part no 101086 3 5 bore or part no 100422 4 0 bore and are not available on an individual basis POLUEP POMKXKER 20 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 14 0 Leg Assembly Repair Procedure NOTE When disassembling and 3 5 Bore Leg Repair Kit Part No 101086 4 0 Bore Leg Repair Kit Part No 100422 reassembling the leg care DISASSEMBLY A
12. into the nozzle When the handle is rotated counterclockwise air pressure is applied to the large area of the Booster Piston This large volume of low pressure air forces the piston and rod assembly forward into the nozzle through the Leveling Valve and to the legs This cycle may be repeated as many times as needed to raise the trailer to the desired height To lower the trailer or to retract the legs slowly move the Master Valve handle counterclockwise as far as it will go POWEF PHPALCKEF 30 Installation and Service Manual Air Powered Hydraulic Landing Gear 81 1304 REV OC 55 5 10 3 0553 110 3unSS3Hd ON HV S931 1993133 5931 5 is Q 5 7 N HIV A9N39u3W3 INOHJ A lddflS WOLl08 O31 3015 avos 01 X 5 1304 WOl108 931 10 LOVH13H gun2 OL 1304 401 931 3015 2 UNE N1A2 NNNNN N 3150 55333 74 HX3 1304 301 931 341 OL LEGS RETRACT 31 POLUEP POMKXKER Installation and Service Manual Air Powered Hydraulic Landing Gear 81 1304 REV OC 5 5 A 5
13. leg as shown Any bracing system must brace the bottom of the landing gear leg to structural members of the trailer in two directions 90 apart Make sure bracing will not interfere with tractor Use proper size 5 8 or bigger grade 5 or better Do not weld bracing and or ears directly to well tube Weld to split collar only Do not weld split collar to leg Install spacers between split collars Do not use split collar bolts to attach bracing Split collar bolts should be torqued to 20 ft Ibs Do not weld on collar while on leg A NOTE Step 4 Control Box Mounting Determine desired control box location No part of control box or handles should extend beyond the sides of the trailer A 10 12 foot high pressure hose and 25 feet of low pressure tubing are supplied as standard If other lengths are needed please call Power Packer Split collar to be located flush with bottom of well tube Locate grease fitting in slot Hold control box in desired location Be sure trailer cross members are free of rust undercoating where control box hanger straps make contact Tack weld hanger straps in place Remove hanger strap bolts and lower control box Finish welding hanger straps to trailer cross Install spacers between slit members and remount control box Torque mounting bolts to 20 ft Ibs collars 4 Step 5 Plumbing Cut emergency brake line and insert tee and 75 PSI pressure protection valve part nu
14. must be boosted down or pried up Split collars too Check the gap between the two split collar tight halves There should be about 1 2 inch Defective check valve seat Rebuild or replace check valve or leg Check valve stuck down Leg leaks down very fast Drain tank s to proper level Overfilled tank s Loosen split collars ad retighten to 20 25 ft Ibs Raise the trailer with a trailer jack Extend legs with booster pump as required If legs must be boosted over entire stroke then the leg should be rebuilt If the leg will function normally over part of the stroke then a bent leg is likely If leg operation is tight in only a limited area this is Rebuild leg and replace bent the most likely reason parts Rebuild legs Check to see that an approved fluid is being used Swollen or damaged seals Bent piston rod or other leg parts lin limin Kinked or blocked eroute es to e ate kinks and clear out all lines D obstructions in lines Problem Legs extend but will not retract Dirty or corroded Polish piston and cavity with check valve piston fine steel wool coat all areas cavity with 0 00 grease ee de MON Inspect vent holes Clear obstruction hole plugged Check all lines for kinks or obstructions Disassemble check valve and inspect 43 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear CAUTION 29 0 Troubleshooting cont Problem
15. phases In the first phase the legs travel rapidly to the ground After they are firmly on the ground the Booster Pump must be actuated to lift the load This is phase two In the first phase LEGS EXTENDED RAPID TO GROUND oil flows from the main Oil Tank to the Booster Nozzle The Booster Nozzle has two ball checks The bottom check allows oil to flow into the Booster but not out The top ball check allows oil to flow out but not in This combination allows oil to flow through the Booster Nozzle to the Leveling Valve and to the legs The Leveling Valve handle may be turned one way or the other to slow down or completely stop either leg Oil from the RETRACT side of the leg returns to the Retract Oil Tank as the legs extend Once the legs reach the ground air pressure alone is not enough to lift the trailer In order to lift the trailer the Booster Valve must be cycled This is done by rotating the Booster Valve handle alternating to both extremes all the way clockwise then counter clockwise clockwise counterclockwise etc This is repeated until the trailer has been raised to the desired height As the Booster Valve handle is rotated this is wnat happens When the handle is rotated clockwise the blind or back end of the Booster is vented to the atmosphere Oil under air pressure from the Main Tank enters the Booster Nozzle and pushes the piston rod back The top ball check in the nozzle keeps oil in the legs from backing up
16. s wexe 2 _ PO a NI OPERATING INSTRUCTIONS PES CR Ww Q NI a ELI BOOSTER A Push We LPS LISTE A 2 valve AY MOM RE FILL TUBE TAA T PVT DITE LEVELING VALVE MASTER VALVE wr NS 7N EN zt 5 ____ POWEF PALCK EF 34 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 22 0 Booster Control Internal Part 101676 wem 3 _ 4 sedie 6 1x9 sedi 10189 Auto booster assembly _ 779 POLUEP POMKXKER 35 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 23 0 Master Valve Part Number 100135 3 07 1024 4 07 1012 EE 3 4 100329 Mounting bracket 6 UE 08 po 1 2 Wiper Oil Return Block Branch T 3 8 npt x 08 37 flare 90 elbow 3 8 npt x gt comp 15 1004 Hex head cap screw 3 8 16x3 4 lg 16 1002 Lock Washer 3 8 100134 15 1002 7 Front adapter plate Socket head cap screw 1 4 28 x 5 8 lg O ring
17. split collars Weld cross brace from bottom of one channel to the other Weld a brace from the bottom of each channel to the trailer frame at 45 angle This brace should be pointed directly away from the leg On each side weld bracing pointed straight forward and or back ward at a 45 angle from each channel on the cross brace to the trailer frame Step 4 Control Box Mounting Please see Steps 4 5 and 6 starting on Page 7 for control box mounting plumbing and filling POWEF PHPALCKEF 8 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 5 0 Rear Mount Installation cont Step 2 3 16 Thick steel plate Sm Taser Frame Weld Ec 12 Landing gear mounting plate 6 channel 9 x12 plate to channel Flush with bottom of well tube Weld 1 2 split collar to channel Trailer frame Weld Secure to mounting bracket with bolts Fixed foot POLUEP POMKEPR 9 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 5 0 Rear Mount Installation cont Step 2 3 16 Thick steel plate Mounting Ea eld Bracing Step 4 Pressure protection valve Tee connector High pressure High pressure hose to L H nose To bottom port left leg leg top port leg top port Fluid Level Port kx 6 Main E m 6 Quarts 8 S e ul Pal E R
18. valve is actuated the signal from the blind end pilot valve is stopped When the valve is actuated the signal is passed on to the power valve The logic valve also allows the pilot pressure to be vented thought the blind end pilot valve as the piston leaves the blind end of the booster Use eye protection Problem If the power valve becomes damaged or leaks excessively the system may not function item 3 page 37 Besides physical damage to the valve the seals on the manual actuator end of the valve spool can leak enough air to cause the valve not to shift The probable cause for this is bending of the actuator rod or some type of side load Generally the color coded urethane tubing is The spool seals are more or less floating sealed and forcing the spool reusable but if new tubing to one side of the cavity can cause excessive leaking both of the pilot is needed order tube kit chambers and of the actual flow paths If leakage or difficult manual 101586 movement is observed replace the power valve assembly 101582 It is normal for the power valve spool moves in and out to stick randomly To correct the situation push or pull on the power valve s black knob and continue to push the logic valve button to achieve Auto Booster Operation If Auto Booster function still does not operate the booster may be cycled manually by pushing pause pulling pause etc to achieve booster operation POLUEP PACIXAIEP
19. PIOLUEP PAZKEPR An Actuant Company Installation and Service Manual Air Powered Hydraulic Landing Gear Part 81 1304 REV 0C CONTENTS 1 0 Receiving Instructions 2 2 0 Safety Issues 2 3 0 Hydraulic Fluid and Grease 3 4 0 Front Mount installation 4 5 0 Rear Mount Installation 8 6 0 Control Box 11 7 0 Master Valve 13 8 0 Booster Valve 14 9 0 Leveling Valve 15 10 0 Booster Pump Valve 16 11 0 Check Valve 17 12 0 Check Valve Repair 18 13 0 Leg Assembly 20 14 0 Leg Assembly Repair 21 15 0 Stiff Leg 22 16 0 Checking Oil 23 17 0 Preventive Maintenance 24 18 0 Replacement Shoes 26 19 0 Mounting Accessories 27 20 0 Controls and Leg Assembly 28 21 0 System Operation 29 22 0 Auto Booster Control Box 34 23 0 Auto Booster Master Valve 36 24 0 Auto Booster Assembly 37 25 0 Auto Booster Sub Assembly 38 26 0 Power Valve Assembly 39 27 0 System Operation 40 28 0 Auto Booster Schematic 42 29 0 Troubleshooting 43 30 0 Auto Booster Troubleshooting44 31 0 Warranty 46 Power Packer 516 Hillcrest Drive Westfield WI 53964 PHONE 800 745 4142 FAX 574 256 1248 EMAIL info powerpackerus com www powerpackerus com Copyright 2015 Power Packer All rights reserved Issued April 2015 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 1 0 Important Receiving Instructions Visually inspect all components for shipping damage prior to installation Shipping damage is not covered by warranty
20. R 45 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 31 0 Warranty Power Packer warrants to the Purchaser that the product shall be free from defects in material and workmanship at the time of manufacture and appearing within 12 months from the Product s date of sale by Power Packer Power Packer makes no other warranties or representations express or implied by operation of law or otherwise including but not limited to any express or implied warranty as to merchantability or fitness for a particular purpose This warranty shall not extend to claims that result in Power Packer s judgment from misuse negligence neglect accident alteration use contrary to instructions including but not limited to moving a vehicle without retracting legs installation contrary to instructions or recommended installation practice use of unauthorized components or parts or unauthorized repair or service In addition Power Packer shall not be liable on any claims under this warranty with respect to which purchaser shall not have given notice to Power Packer within 30 days of purchaser receiving notice of the facts giving rise to such claim POWER PACK EAR Warranty Claims Department 516 Hillcrest Drive Westfield WI 53964 608 296 1107 FAX 608 296 1798 Customer Service 800 745 4142 FAX 574 256 1248 EMAIL info powerpackerus com www powerpackerus com 46
21. SSEMBLY should be taken to keep all parts clean and to prevent The item numbers listed below are the same as those listed on the leg parts from being damaged assembly drawing 1 To remove leg from trailer make sure no weight is being supported by legs Have legs slightly extended from full retract position to relieve any internal pressure in legs Disconnect the hoses from the leg You may wish to mark which hose goes to what port Remove VIN CAUTI the leg from the trailer 2 Remove the lock valve Item 1 from the leg by screwing counter While lifting piston rod oil clockwise If you need only to repair the lock valve it may be will squirt out of side port at removed from leg while still on trailer if you have a minimum of 2 top of rod clearance above 3 Remove o rings and back up washers Items 2 3 4 and 5 Using a snap ring pliers remove snap ring Item 6 Loosen hex screw ltem 8 4 Lift well tube 19 off lower leg assembly Lift piston rod Item 18 to gain access to top of cylinder head 17 5 Remove 4 hex screws 10 Lift cylinder head retainer Item 11 A wire or rubber band maybe used to hold Item 11 to sprocket near the top of the piston rod out of the way 6 Using a flat screwdriver carefully remove spiral retaining ring Item 12 Lift rod piston assembly out of cylinder tube item 28 7 Using a large snap ring pliers remove heavy duty snap ring 26 or rem
22. adapter plate 19 1002 Socket head cap screw 1 4 28 x 5 8 10 O ring 3 4 i d x 1 8 100328 Valve spool 18 1002 Roll 5 32 dia x 1 Ig 15 1001 Roll pin 5 32 dia x 1 Ig 100133 Rear adapter plate Roll 1 4 dia x 1 10 Roll pin 1 4 dia x 1 lg Contained in valve repair kit 100224 _ gg 1 2 3 4 5 6 8 9 0 1 2 3 4 5 1 1 2 2 2 2 2 2 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 8 0 Booster Valve Part List amp Drawing A NOTE Part Nos 100122 100314 Valve is not repairable Purchase a complete valve assembly Number 7 6 071001 Pipeplug 38np 1 8 07 1012 90 elbow 3 8 1 2 1 POLUEP POMKXKER 14 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 9 0 Leveling Valve Part List amp Drawing Part No 100120 0000 Number 9 340 18 100300 Contained valve repair 100224 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 10 0 Booster Pump Valve Part List amp Drawing Part No 100124 Standard 100126 High Pressure Part mem wmer ay 1 ori 45 nptxi fareless 1 _ 2 19 1001 Seelbal i2d gedei0 2 8 1007 Boostroupupot 1 otd booster nozzle
23. b the fitting on the quick exhaust should blow air when and only when the piston is at the appropriate end of stroke That is the valve on the nozzle end should only blow air when the power valve is pushed in and the piston reaches the end stroke and the blind end valve should only blow air when the power valve is pulled out and the piston reaches the end of the stroke 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 30 0 Auto Booster Only Troubleshooting cont If the pilot valve does not blow air at all or blows air continuously then CAUTI ON there is a problem and the pilot valve assembly part number 101575 should be replaced If this condition is found it is also advisable to replace the logic valve and button part numbers 101573 and 09 1030 Always support trailer in proper manner loosen fittings and hoses carefully to vent possible trapped pressure Use eye protection and trailer supports One cause of several problems at initial assembly is the universal nipple between the pilot valve and the quick exhaust This nipple has a fixed end and an adjustable end similar to a o ring boss x o ring boss nipple If the adjustable end is on the pilot valve side the lock nut may allow too much of the nipple to stick inside the valve and cause binding in the pilot valve The logic valve simply interrupts the pilot signal from the blind end pilot CAUTI valve When the
24. e eye protection NOTE A tank may become overfilled in two ways If the system is new or fluid just changed it is likely that one of the tanks was filled with the legs in the wrong position lf a tank becomes overfiled after a period of normal use then excess 15 being transferred from one tank to the other at the legs This means one tank is to be drained and the other tank will need to be filled to the bottom of the fill port The leg s may also need rebuilding POLUEPHPOMCA ER Installation and Service Manual Air Powered Hydraulic Landing Gear 29 0 Troubleshooting Probable Cause Corrective Action Problem Legs leak down Extend legs so that they support the trailer 3 6 above jack stands Disconnect air Cycle master valve handle back and forth to vent air pressure from system Remove both lines at each leg Wipe any oil from around ports Leave sit until oil is noticed leaking from one port or the other If the TOP PORT leaks the check valve is defective If the BOTTOM PORT leaks the leg seals are defective Rebuild check valve polish piston and cavity with fine steel wool Problem being exhausted from exhaust port of master valve With leg fully retracted remove oil fill cap of main oil tank If oil comes out tank is Oil level should be even with overfilled Replace fill cap Fully extend bottom of filler level plugs legs Remove fill plug Problem Leg will not free travel legs
25. e of the legs comes in through the Leveling Valve By turning the Leveling Valve handle one way or the other either leg may be partly or completely stopped Oil flows out of the Leveling Valve and to the Booster Valve and to the Oil Return Block in the Master Valve At the Booster Pump the oil is stopped from flowing by one of the ball checks in the Booster Nozzle but the oil can flow in the Master Valve and return to the Main Oil Tank By moving the Mater Valve handle SLIGHTLY clockwise it is possible o slow the legs down as they retract When the legs are fully retracted the air pressure in the Retract Tank will hold the legs up The Master Valve should always be in the position for over the road travel To extend the legs rotate the Master Valve handle clockwise as far as it will go Air pressure inside the Retract Oil Tank is vented to atmosphere through the air portion of the Master Valve POLUEP PACAIEPR 29 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 21 0 System Operation Standard cont CIRCUIT OPERATION cont Air pressure from the emergency air brake line is connected to the Booster Valve and also to the Main Oil Tank The oil return passage in the Master Valve is blocked with the Master Valve and also to the Main Oil Tank The oil return passage in the Master Valve is blocked with the Master Valve in the legs extended position and oil cannot flow through it The legs extend in two
26. ea of the Booster Piston This large volume of low pressure air forces the piston and rod assembly forward into the nozzle forcing a small volume of high pressure oil out of the nozzle through the Leveling Valve and to the legs This cycle may be repeated as many times as needed to raise the trailer to the desired height To lower the trailer or to retract the legs slowly move the Master Valve handle counterclockwise as far as it will go as indicated in Phase 1 POLUEP PACAIEPR 41 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 28 0 Auto Booster Schematic Part Description EON B ee s i6 dt 4 1005 teemvae 3 _ 1 5 s Main citar 7 105 3 _ amp Gmewweaseny Part number and quantity will vary see invoice or part to obtain information ATMOSPHERIC AJR PRESSURE BRAKE 7 REGULATED AR PRESSURE OFTONAL SUPPLY LE SHOP DLADHAND 100 150 FULL RETRACT OIL TANK om FI Heo d L R Lc o PT POLUEP POMKXKER 42 81 1304 REV CAUTION Always support trailer in proper manner and loosen fittings and hoses carefully to vent possible trapped pressure Use eye protection trailer supports A CAUTION Us
27. ed from system 23 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 17 0 Preventive Maintenance In order to obtain continued high performance from your landing gear unit we recommend the following yearly service procedure 1 Change Oil In order to obtain continued high performance from your landing gear a With legs fully extended and master valve in down park drain retract oil tank by removing nylon line at bottom of tank plug if equipped Reconnect refill with 6 quarts following the yearly service of approved fluid to fill port level procedure b Connect air supply to system and fully retract legs leave handle in up travel Disconnect air supply from system Disconnect top hydraulic line at each leg and put ends into container to catch oil e Connectair supply to system Very slowly move master valve handle toward down park position until oil starts coming out of lines Leave in this position until all has been exhausted from main tank 0 Move master valve handle to up travel position and recon nect lines to leg h Remove filler cap from end of fill pipe of main oil tank and NLGI grade 00 or 0 fill with 11 quarts of approved fluid lithium grease use hand i Operate landing gear for at least two full cycles complete grease gun only leg strokes to bleed a
28. emember to allow for spring deflection when trailer is loaded Step 2 Leg Mounting This is one common way of mounting rear mount landing gear Other methods may be used When designing a mounting structure provide enough strength to lift the trailer and proper bracing to take any side loading Remove wheels if necessary Cut a 6 inch channel to desired length varies with trailer frame and leg stroke Weld 12 inch long piece of 3 16 steel plate to the inside of the channel These plates should be wide enough to place the center of the leg between the tires when the leg is mounted to the channel Weld a loose mounting plate order from Power Packer to the channel at the proper height per installation requirements Weld a split collar half to the mounting channel where the bottom of the well tube will be located Weld this fabrication to the trailer frame Fabricate second leg mounting structure in the same manner Mount legs using 5 8 18 UNF grade 5 bolts Torque to 100 ft lbs Clamp remaining split collar halves in place with 1 2 20 UNF grade 5 bolts Torque to 20 ft lbs Step 3 Bracing Other bracing systems may be used to suit the application The bottom of each leg must be braced to the trailer frame members in two directions 90 apart These braces should not be welded to the leg They may be mounted to the split collar channel and or the cross brace near the leg See page 5 steps 2 and 3 for clearer view of
29. etract oil lt E m Fluid fill cap X amp Siep6 tank for main oil tank extend POWEF PALCK EF 10 Installation and Service Manual Air Powered Hydraulic Landing Gear 81 1304 REV OC wing o i t 5 5 11 POWEF PALCK EF 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 6 0 Control Parts List amm 2 1 3 xw 1 even vate e 17 7 3 gum cA ee 10012660 26 Booster pump high pressure 100320 Steel line master valve to c valve 100191 Steel line manifold to leveling ae right leg 100190 Steel line manifold to leveling es left leg 100318 Steel line master valve to 5 100129 Manifold Shunt valve 001 Bulk Nylon tubing typ bs 100128 Main oil tank extend 100127 Retract oil tank SERES use 1004 043 shunt valve SEEN use 1004 038 shunt valve POWEF PALCKEF 12 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 7 0 Master Valve Part List amp Drawing Part Nos 100117 100313 07 1024 Branch T 3 8 npt x 08 37 flare 07 1012 90 elbow 3 8 x comp 100329 Mounting bracket 15 1004 Hex head cap screw 3 8 16x3 4 lg 7 16 1002 Lock Washer 3 8 100134 Front
30. g Gear Power Gear III Manufactured 8 1980 present Control Box Distinguishing Characteristics 1 Yellow decal 2 not have air side tank 3 tube comes through box 4 Master valve handle located in center of box 1 White decal 2 Larger box 3 Master valve located in upper left corner of box 4 Please contact factory 1 Yellow decal 2 Fill tube between box and tank 3 Master valve Handle located in center of box Parts are available for all units either direct replacement or a retrofit Check parts manual for part numbers or consult factory for details at 800 745 4142 LEGS The model number for the legs is located on the well tube outermost tube between the 9 16 hex screw and the caution decal see diagram MODEL NUMBER o MH LENGTH FROM CENTER LINE OF OF TOP MOUNTING HOLE WELL TUBE TO BOTTOM OF WELL TUBE CIRCUMFERENCE 28 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 21 0 System Operation Standard CONTROL BOX HYDRAULIC CIRCUIT OPERATION The Landing Gear Control Box is an air powered hydraulic power supply designed to operate two Landing Gear Legs The Control Box will supply high pressure hydraulic energy to extend the legs or lift the trailer and low pressure hydraulic to retract the legs For best results lock engine throttle at 1000 1200 ppm The Contro
31. into the Booster but not out The top ball check allows oil to flow out but not in This combination allows oil to flow through the Booster Nozzle to the Leveling Valve and to the legs The Leveling Valve handle may be turned one way or the other to slow down or completely stop either leg Oil from the RETRACT side of the leg returns to the Retract Oil Tank as the legs extend PHASE 2 Once the legs reach the ground air pressure alone is not enough to lift the trailer In order to lift the trailer the Booster Pump must be cycled This is done by pressing and holding the Logic Valve until the trailer has been raised to the desired height If the automatic system malfunctions release the Logic Valve and repress If the automatic system still does not function or if manual operation is desired the Booster Valve may be cycled manually by pushing and holding the Power Valve in and pulling the Power Valve out repeatedly until the trailer is raised to the desired height Periodically the Power Valve with black knob may stick To correct push and pull knob out and continue to push the Logic Valve As the Logic Valve is pushed the following occurs The blind or back end of the Booster is vented to the atmosphere Oil under air pressure from the Main Tank enters the Booster Nozzle and pushes the piston rod back The top ball check in the nozzle keeps oil in the legs from backing up into the nozzle Then air pressure is applied to the large ar
32. ion and Service Manual Air Powered Hydraulic Landing Gear 19 0 Mounting Accessories Part No 100354 Curved ear Part No 100357 Straight ear Part No 100353 Sy Angle ear Part No 100346 Split collar assembly 100 series Part No 100348 Split collar assembly 400 series 9 D j Part No 100226 Part No 100509 Part No 100502 Mounting plate Mounting plate Mounting plate 9 x 16 x 3 8 14 holes 9 x 10 5 8 x 1 4 10 holes 9 x 8 3 8 x 1 4 8 holes 400 series 100 series 100 series Note All holes 11 16 dia On 7 1 2 x 2 1 4 centers POWEF PALCK EF 27 81 1304 REV Before calling the factory to order parts for your landing gear unit please try to identify the series of control box and the model leg you have If you have doubts contact the factory for assistance NOTE On some older model legs the model number is not always located on the leg Call the factory with the following three dimensions and we will determine what model leg you have 1 Mounting height 2 Length of well tube 3 Circumference of well tube POWEF PALCKEF Installation and Service Manual Air Powered Hydraulic Landing Gear 20 0 Identification Controls amp Leg Assembly Series Power Gear Manufactured 1 1965 3 1980 DISCONTINUED PARTS NOT AVAILABLE Power Gear II Manufactured 3 1980 8 1980 Landin
33. ir from system 2 Check all hydraulic lines fittings for leaks and worn spots Replace any defective lines and fittings 3 Checktor loose bolts and nuts LUBRICATION OF LANDING GEAR SYSTEMS In order to provide continued performance of your landing gear system the following lubrication procedures are required at approximately six month intervals opray WD 40 or equivalent into booster pump vent hole Inject anti seize to all 4 grease fittings LOCTITE or FELPRO CS A If unavailable use NLGI grade 00 or O lithium grease POLUEP PACAIEPR 24 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 17 0 Preventive Maintenance cont NOIE LUBRICATION OF LANDING GEAR SYSTEMS cont In order to obtain continued high performance from your landing gear Inject grease into vent hole on front of new soft seat check valve unit we recommend Figure 1 and on the rear of older hard seat check valve Figure 2 following the yearly service using a rubber tip adapter Lubrimatic code 11860 Check valves procedure produced after July 1987 have a grease fitting without a ball When all lubrication is completed extend and retract legs full stroke Excess grease will be pushed out of leg check valve vent Figure 1 NOTE Inject grease into vent hole or grease fitting use hand grease gun only Fully extend leg and wipe old grease off cylinder tube Retract
34. l Box has six 6 major components They are 1 Master Control Valve The Master Control Valve has two parts the rear or air portion and the front or oil return block The Master Valve is used to extend or retract the legs 2 Leveling Valve The Leveling Valve is used to adjust for uneven ground or load conditions and slows down or stops one leg or the other 3 Booster Valve The Booster Valve is used to cycle the Booster Pump 4 Booster Pump The Booster Pump is the energy transformer that changes low pressure air energy into high pressure hydraulic energy to extend the legs 5 Main Oil Tank The Main Oil Tank is used to store and pressurize the oil used to extend the legs 6 Retract Oil Tank The Oil Tank is used to store and pressurize the oil used to retract the legs CIRCUIT OPERATION To best explain circuit operation first assume that both legs are at mid stroke Turning the Master Control Valve as far counter clockwise as it will go will put the Master Valve in the legs retract mode In this position any air pressure in the Main Oil Tank is vented to atmosphere through the air portion of the Master Valve Air Pressure from the emergency air brake line is connected to the Retract Oil Tank by the air portion of the Master Valve At the Retract Tank the air pressure forces oil out to the bottom or retract port of the legs causing the legs to retract returning from the top port or extended sid
35. leg and as leg is Inject grease after cleaning cylinder tube See retracting apply grease to note power grease guns may be used at this grease fittings at bottom of point well tube Figure 2 Inject grease into vent hole or grease fitting use hand grease gun only POWEF PHPACKEF 25 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 18 0 Replacement Shoes Part No 100411 For the convenience of Power Packer customers the replacement foot or shoe has been redesigned to facilitate an easier repair and replacement of damaged or worn feet The new design should make changing feet simpler and less time consuming The following steps illustrate the procedure 1 Replacement Foot part number 10041 1 2 HRetract leg 3 Remove damaged foot Be sure not to cut into end cap of cylinder There are two notches 180 apart on the end cap on the cylinder tube Use these notches to start your cut 4 Place shoe halves under leg Lower leg to shoe halves shoe will self center weld across the top Retract leg and weld across the bottom oo H9 h 1 NL 1 Replacement Foot 3 Remove damaged part number 10041 1 foot Be sure not to cut into end cap of cylinder s 4 Place shoe halves 5 Lower leg to shoe 6 Retract leg and under leg halves shoe will self weld across the center weld across bottom the top POWEF PALCKEF 26 81 1304 REV OC Installat
36. les automatically with the Logic Valve see item 4 page 34 It can also be cycled manually by pushing and pulling the Power Valve item 3 page 34 4 Booster Pump The Booster Pump is the energy transformer that changes low pressure air energy into high pressure hydraulic energy to extend the legs 5 Main Oil Tank The Main Oil Tank is used to store and pressurize the oil used to extend the legs 6 Retract Oil Tank The Oil Tank is used to store and pressurize the oil used to retract the legs 7 Logic Valve Push to cycle booster valve release to stop CIRCUIT OPERATION RETRACT LEGS To best explain circuit operation first assume that both legs are at mid stroke Turning the Master Control Valve as far counter clockwise as it will go will put the Master Valve in the legs retract mode In this position any air pressure in the Main Oil Tank is vented to atmosphere through the air portion of the Master Valve Air Pressure from the emergency air brake line is connected to the Retract Oil Tank by the air portion of the Master Valve At the Retract Tank the air pressure forces oil out to the bottom or retract port of the legs causing the legs to retract Oil returning from the top port or extended side of the legs comes in through the Leveling Valve By turning the Leveling Valve handle one way or the other either leg may be partly or completely stopped Oil flows out of the Leveling Valve and to the Booster Va
37. lve and to the Oil Return Block in the Master Valve At the Booster Pump the oil is stopped from flowing by one of the ball checks in the Booster Nozzle but the oil can flow in the Master Valve and return to the Main Oil Tank By moving the Mater Valve handle SLIGHTLY clockwise it is possible o slow the legs down as they retract When the legs are fully retracted the air pressure in the Retract Tank will hold the legs up The Master Valve should always be in the position for over the road travel POLUEP PACAIEPR 40 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 27 0 System Operation Auto Booster cont CIRCUIT OPERATION cont EXTEND LEGS To extend the legs rotate the Master Valve handle clockwise as far as it will go Air pressure inside the Retract Oil Tank is vented to atmosphere through the air portion of the Master Valve Air pressure from the emergency air brake line is connected to the Booster Valve and also to the Main Oil Tank The oil return passage in the Master Valve is blocked with the Master Valve in the legs extended position and oil cannot flow through it flow travels through booster nozzle LEGS EXTEND IN TWO PHASES PHASE 1 The legs travel rapidly to the ground At low pressure no boosting required The LEGS EXTENDED RAPID TO GROUND oil flows from the main Oil Tank to the Booster Nozzle The Booster Nozzle has two ball checks The bottom check allows oil to flow
38. mber 86640 PPV Kit Pressurized air is required to positively hold the legs up when the travel is traveling and to operate the legs when the trailer is parked Then usual source of air is the tractor s compressor via the air supply line Figure 1 page 7 is a circuit with a third gladhand that meets the above requirements To operate landing gear the operator moves the tractors supply gladhand from the trailer s supply line connection to the 3 d gladhand 4 This sets the trailers parking brakes and connects tractor air to landing gear s control box The pressure protection valve s integral check valve prevents loss of air POLUEP PACAIEPR 4 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear CAUTION Do not weld on truck frame 4 0 Front Mount Installation cont Trader Frame Screws Attach Underside el Frame Using Aperopnate Brackets Leg Bolted to Frarw Bracing lor Side Cross Brace POWEF PALCK EF 5 81 1304 A NOTE The parking brakes of the tractor and or trailer will not function with this circuit because the supply line is not vented when landing gear X functions An alternative method of applying the parking brakes should be provided The 3 9 gladhand circuit does not cause the parking brakes to be inoperative when the landing gear is operating NOTE Figure 1 Item Descriptions
39. om top port of right curb side leg to HYD R H leg port to manifold Connect 3 8 H P hose from top port of leg road side leg to HYD L H leg port on manifold Step 6 Filling Connect air to trailer 50 maximum and move master valve handle to up travel When legs are fully retracted and air is no longer heard moving remove fill cap from main oil tank extend fill tube Fill main oil tank extend with 11 quarts of fluid See page for fluid recommendations Replace fill cap Extend legs to ground Refer to front decal for operating instructions Fully retract legs This procedure bleeds air from the extend side of the leg Extend legs to ground and cycle booster valve until legs are fully extended Keep master valve in down park position When air is no longer heard moving remove retract oil tank fill plug Fill retract oil tank with 6 quarts of fluid Replace fill plug Fully retract legs Additional operation by fully extending and retracting the legs may be required to bleed all air form the system 2 cycles minimum Check all fittings and hoses for leaks Secure hoses in a manner that will not cause chafing Your system is now ready for use 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 4 0 Front Mount Installation cont 1 F J Main oil tank extend Retract oil tank ume 11 quarts 4 I 6 quarts Nx X q gt en
40. ove the set screw Item 30 Remove the piston Item 27 cylinder head Item 17 retaining ring Item 12 and cylinder head retainer Item 11 Remove all seals and wear rings Clean all parts Inspect all bearing surfaces tor scratches nicks or other defects replace if necessary Replace all wear rings and lightly lubricate all seals before installing on legs 9 Carefully reassemble the leg in reverse order as described above Where applicable torque piston Item 27 to 40 50 ft lbs Apply 2 drops of Loctite 277 or equivalent to set screw Item 30 and torque to 50 in Ibs 10 Return leg to trailer and reconnect all hoses Apply grease to grease fittings Item 21 and cycle legs fully several times to bleed air from the system Check oil level as described in maintenance section of manual All seals should be coated lightly with grease before installation into leg o POWEF PHPALCKEF 21 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear NOTE When ordering parts for a stiff leg model all parts are common with a non stiff leg model see page 20 except for the parts below A NOTE E 15 0 Stiff Legs Part List Items 3 4 5 can be iors Sd pin kit m art no O bw Stiff leg 18 1019 Cotterless hitch pin 99 1002 Ferrule 15 1052 E State the part number when ordering 1 _ Cy LIO
41. p and check ring Item 10 and press firmly into place valve piston are spring loaded 3 Place check insert body Item 13 into check valve body Item 1 counter bore and use a large punch and light hammer to drive the check insert body Item 13 into place Interference fit 4 Turn check valve assembly 100540 right side up Install quad ring Item 8 Install o ring Item 6 on check valve piston ltem 5 Install piston spring Item on check valve piston 5 and insert in piston cavity where Item 5 is located Install o ring Item 7 in groove Place check valve cap 2 over check valve piston Item 5 and compress to install H H C S Item 4 and torque to 9 ft Ibs 5 Reinstall on leg making sure that o ring and backup washer are on piston rod and tighten check valve assembly 100540 with strap wrench The check valve may have to be rotated to connect the hoses To do this remove H H C S Item 8 see leg assembly drawing page 20 and rotate check valve clockwise only so ports are accessible then reinstall H H C S Item 8 Connect hoses and cycle legs several items to bleed air from system then check the oil level POWEF PHPALCKEF 19 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 13 0 Leg Assembly Part List amp Drawing 1 Ame n VNB 2 mun T i v Snap ring
42. ssages and designate a degree or level of hazard seriousness The Signal Words used in this manual are WARNING CAUTION and NOTICE WARNI WARNING indicates a hazardous situation that if not avoided could result in death or serious injury CAUTI ON CAUTION indicates a hazardous situation that if not avoided could result in minor or moderate injury NOTE indicates information considered important but not hazard related e g messages related to property damage POWEF PHPACKEF 2 81 1304 REV NOTE Our experience indicates that mixtures of oil and fuel oil cause seals to swell resulting subsequent sticking or sluggish action on the landing legs Always grease leg in the fully retracted position DANGER Do not place any body parts feet below leg shoe while in operation The operator must be full aware of people s position in the trailer area POWEF PALCKEF Installation and Service Manual Air Powered Hydraulic Landing Gear 3 0 Hydraulic Fluid and Grease Specifications Power Packer recommends using a quality ISO 15 anti wear hydraulic fluid for most applications If operating in cold temperatures slower operation will occur If slower operation in cold weather affects your operations we recommend using a fluid specially formulated for cold temperatures We have found that ISO 15 anti wear hydraulic fluids work well with Power Packer systems
43. to 20 F If consistently operating at temperatures below 20 F then we recommend hydraulic fluids conforming to MIL PRF 5606H or MIL H 5606A obsolete If you have any questions regarding fluid recommendations please call us Power Packer Hydraulic Lubricant Recommendations Cold Weather Fluids ISO 15 Brand Trade Name ISO Viscosity Grade Mobile DTE 10 Excel 15 15 Kendall Hyken Glacial Blu 15 Chevron Rando HDZ 15 15 Phillips 66 Arctic Low Pour 15 Shell TellusS2 V 15 15 Schaeffer 275SW ISO 15 15 Extreme Cold Weather Fluids MIL H 5606A Brand Trade Name ISO Viscosity Grade Phillips 66 5606A 15 Mobil Aero HFA N A Royco 756A N A Shell AeroShell Fluid 4 N A Chevron 5606A N A Grease Brand Trade Name NLGI Mobile Mobilux EP O 0 Mobile Mobilux EP 004 00 Chevron Delo Grease EP 0 0 Chevron Delo Grease EP 00 00 Phillips 66 Multiplex Red 0 0 Shell Gadus 52 V2200 0 Schaeffer 274 Moly EP Synthetic Plus 0 0 Schaeffer 274 Moly EP Synthetic Plus 00 00 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear CAUTION 4 0 Front Mount Installation Step 1 Do not weld on truck frame Remove manually operated landing gear if applicable Step 2 Leg Mounting Install landing gear legs to standard landing gear mounting brace Allow 12 ground clearance with legs fully retracted Use 5 8 18 UNF grade 5 hex head cap screws and hex nuts Torque to 100 ft Ibs Step 3 Bracing Brace
44. valve cap 2 Normally check valve piston 5 and piston ring Item will release at this point Remove o rings Items 6 7 and 8 If check valve piston Item 5 and piston spring Item 3 do not release proceed with C and D below and perform E below Turn check valve body Item 1 upside down Check insert body Item 13 is installed and held in by an interference fit To remove slide a 5 8 deep socket onto check insert body Item 13 and using a socket cheater bar in rigid position work back and forth until check insert body is released D Remove o ring Item 15 and check insert top item 14 Remove steel ball Item 9 o ring Item 10 check insert Item 11 and spring Item 12 form check insert body item 13 E check valve piston Item 5 has not released lay check valve body Item 1 on side and insert brass or aluminum drift punch form bottom side of check valve body and tap with light hammer 18 81 1304 REV OC Installation and Service Manual Air Powered Hydraulic Landing Gear 12 0 Check Valve Repair Procedure cont Use eye protection ASSEMBLY 1 Place insert check top Item 14 into counter bore flat side down Place o ring Item 15 into shallow counter bore T AUTI ON 2 Assemble check insert body ltem 13 by placing check insert Item 11 in seat flat side down into check insert body Item 13 Insert spring Item 12 insert steel ball Item 9 insert Teflon o Check valve ca
45. wered Hydraulic Landing Gear 4 CAUTION Use eye protection CAUTION Check valve and check valve piston are spring loaded CAUTION Check valve parts spring loaded POWEF PALCKEF Use Repair Kit Part No 100221 The item numbers listed below are the same as those listed on the check valve assembly drawing page 17 IMPORTANT 1 Inspect all parts for scratches nicks and other defects replace if necessary All new seals and parts should be lightly coated with grease grade or 00 before reassembling 3 Remove rust and other debris using a very fine steel wool if required Do not use emery cloth because it leaves scratches in metal parts that causes excessive wear on o ring and parts 4 Remove check valve assembly Part No 100540 from leg by using strap wrench in a ccw manner To do this without removing leg from trailer requires 2 clearance above the check valve Make sure all pressure 15 relieved before check valve is removed 5 Thoroughly clean all hard parts before assembly DISASSEMBLY A To remove check valve from leg make sure no weight is being supported by legs Have legs slightly extended from full retract position to relieve any internal pressure in legs Disconnect the hoses from the leg You may wish to mark which hose goes to what port Unscrew the check valve from the leg using counter clockwise rotation B Remove the six H H C S Item 4 and check
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