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1

1921 Slauson 

A

ve.  Santa Fe Springs, CA.  90670  (800) 227-41

16  F

AX (888) 771-7713

29

HYDRAULIC SCHEMATIC (POWER DOWN)

PORT B - LOWER 

(POWER DOWN)

PORT A - RAISE

RELIEF VALVE 2

(SET AT 1100 PSI)

PUMP

AUX. HAND

PUMP PORT 

(PLUGGED)

S1

HYDRAULIC CYLINDER

2 GPM FLOW 

CONTROL 

VALVE

RESERVOIR

DRAIN HOLE

(PLUGGED)

FILTER

MOTOR

(REF)

RELIEF VALVE 1

(SET AT 3250 PSI)

S2

FIG. 29-1

FIG. 29-1

Summary of Contents for TE-25

Page 1: ...2017 MAXON LIFT CORP M 16 35 REV B NOVEMBER 2017...

Page 2: ......

Page 3: ...cessing All claims for warranty will be denied if paperwork has not been received or claim submitted via Maxon website for processing by MAXON s Warranty Department within 30 days of repair date All c...

Page 4: ...REPLACING PLATFORM TORSION SPRING 21 SAFETY HOOK MAINTENANCE 23 DECALS PLATES 24 PUMP MOTOR SOLENOID OPERATION GRAVITY DOWN 26 PUMP MOTOR SOLENOID OPERATION POWER DOWN 27 HYDRAULIC SYSTEM DIAGRAMS 28...

Page 5: ...PLATFORM RAISES PARTIALLY AND STOPS 35 LIFTGATE WILL NOT LIFT RATED CAPACITY 36 PLATFORM RAISES SLOWLY 37 PLATFORM WILL NOT LOWER LOWERS TOO SLOWLY OR TOO QUICKLY 38...

Page 6: ...GE Cover Includes TE 15 and TE 20 liftgates 14 Combined EXXON MOBIL oils on the same row with updated part numbers 29 Updated power down hydraulic schematic shows solenoid valves S1 S2 30 31 Gravity d...

Page 7: ...an become trapped between the platform and the Liftgate extension plate WARNING Correctly stow platform when not in use Extended platforms could create a hazard for people and vehicles passing by Reco...

Page 8: ...ediately seek first aid If acid gets on your skin immediately wash it off with soap and water If an emergency situation arises vehicle or Liftgate while operating the Liftgate release the con trol swi...

Page 9: ...90670 800 227 4116 FAX 888 771 7713 9 LIFTGATE TERMINOLOGY LIFT FRAME CONTROL SWITCH PARALLEL ARM PLATFORM LIFT CYLINDER EXTENSION PLATE FLEX STEP PUMP BOX COVER SHOWN MAIN FRAME WEDGE FLIPOVER PLATFO...

Page 10: ...arts as required Check electrical wiring for chafing and make sure wiring connections are tight and free of corrosion Use dielectric grease to protect electrical connections Check that all WARNING and...

Page 11: ...re is rust or oil on Liftgate or if the Lift gate is dirty clean it off Touch up the paint or galvanized finish where bare metal is showing To maintain the protection provided by the original paint sy...

Page 12: ...lube fittings at the same places on the RH cylinder lift arm and parallel arm LUBRICATION DIAGRAM FIG 12 1 RH LIFT ARM PARALLEL ARM CYLINDER LH LIFT ARM PARALLEL ARM Refer to lubrication diagram FIG 1...

Page 13: ...et in the openings Also protect the openings from accidental contamination FILLER CAP RESERVOIR PUMP RESERVOIR GRAVITY DOWN POWER UNIT SHOWN FIG 13 1 1 7 8 2 3 8 GD 2 5 8 3 1 8 PD 3 Bolt on the pump c...

Page 14: ...4 2 TABLE 14 1 ISO 32 HYDRAULIC OIL RECOMMENDED BRANDS PART NUMBER CHEVRON HIPERSYN 32 KENDALL GOLDEN MV SHELL TELLUS S2 VX 32 EXXONMOBIL UNIVIS N 32 DTE 24 ISO 15 OR MIL H 5606 HYDRAULIC OIL RECOMMEN...

Page 15: ...4 Pull out no threads filler cap FIG 15 1 and refill reservoir with hydraulic fluid to level shown in FIG 15 1 Reinstall filler cap FIG 15 1 1 Remove the pump cover FIG 13 1 Place empty 5 gallon buck...

Page 16: ...8 771 7713 16 PERIODIC MAINTENANCE CHANGING HYDRAULIC OIL Continued 5 Bolt on the pump cover as shown in FIG 16 1 Torque the cap screws to 10 14 lb in BOLTING PUMP COVER FIG 16 1 POWER UNIT REF PUMP C...

Page 17: ...11921 Slauson Ave Santa Fe Springs CA 90670 800 227 4116 FAX 888 771 7713 17 THIS PAGE INTENTIONALLY LEFT BLANK THIS PAGE INTENTIONALLY LEFT BLANK...

Page 18: ...shackles and tip of flipover must touch the ground at the same time FIG 18 1 If the shackles and the tip of flipover touch the ground at the same time raise plat form to bed height Outboard edge on t...

Page 19: ...SHIM TABLE 18 1 SHACKLE REF CENTERED WELDING SHIMS RH SHACKLE SHOWN FIG 19 2 SHIM 1 16 1 8 3 16 or 1 4 MADE FROM STEEL FLAT FIG 19 1 2 1 4 1 1 2 3 Make shims as needed FIG 19 1 Posi tion bottom edge o...

Page 20: ...atform first touches the ground the tip of flipover and shackle should touch at the same time as shown in FIG 20 3 LOWER TIP OF FLIPOVER THIS DISTANCE B GRIND METAL FROM PLATFORM STOP 9 16 1 16 1 1 4...

Page 21: ...own in FIG 21 2 Make sure the long leg of the spring is inserted through the hole in the block on the shackle FIG 21 2 Make sure the short end of the spring is positioned as shown in FIG 21 2 3 Raise...

Page 22: ...on through the platform hinge bracket FIG 22 1 Line up the hole in the platform hinge pin with the hole in the pin collar Reinstall cap screw through the pin collar and secure with flat washer and loc...

Page 23: ...safety hook as shown in FIG 23 1 EXTENSION PLATE SAFETY HOOK PLATFORM LOOP CORRECT POSITION PLATFORM LOOP SHOWN HOOKED INCORRECTLY FIG 23 2 PLATFORM LOOP CORRECT POSITION PLATFORM LOOP INCORRECT POSI...

Page 24: ...attached at the factory If vehicle does not permit this layout decals in the manual and decal kit must be applied so that they are easily visible when approaching vehicle to operate Liftgate Use good...

Page 25: ...227 4116 FAX 888 771 7713 25 DECAL SHEET P N 282522 01 FIG 25 1 CAPACITY DECALS TABLE 25 1 MODEL DECAL P N CAPACITY TE 15 220386 1500 POUNDS 680 KG TE 20 220387 2000 POUNDS 907 KG TE 25 220382 2500 P...

Page 26: ...VITY DOWN JUNCTION BLOCK SOLENOID SWITCH SOLENOID VALVE SYSTEM DIAGRAMS TABLE 26 1 GRAVITY DOWN PUMP MOTOR SOLENOID SWITCH OPERATION LIFTGATE FUNCTION PORT SOLENOID SWITCH OPERATION MEANS ENERGIZED MO...

Page 27: ...OWER DOWN POWER DOWN MODULE TABLE 27 1 POWER DOWN PUMP MOTOR SOLENOID SWITCH OPERATION LIFTGATE FUNCTION PORT SOLENOID SWITCH OPERATION MEANS ENERGIZED MOTOR VALVE S2 VALVE S1 POWER DOWN MODULE RAISE...

Page 28: ...RAMS HYDRAULIC SCHEMATIC GRAVITY DOWN FIG 28 1 FIG 28 1 2 GPM FLOW CONTROL VALVE VALVE A HYDRAULIC CYLINDER RELIEF VALVE SET AT 3250 PSI PUMP MOTOR REFERENCE VENT PORT RESERVOIR M PRESSURE PORT CHECK...

Page 29: ...HYDRAULIC SCHEMATIC POWER DOWN PORT B LOWER POWER DOWN PORT A RAISE RELIEF VALVE 2 SET AT 1100 PSI PUMP AUX HAND PUMP PORT PLUGGED S1 HYDRAULIC CYLINDER 2 GPM FLOW CONTROL VALVE RESERVOIR DRAIN HOLE...

Page 30: ...1 7713 30 ELECTRICAL SYSTEM DIAGRAMS ELECTRICAL SCHEMATIC GRAVITY DOWN FIG 30 1 DOWN UP CONTROL SWITCH STARTER SOLENOID MOTOR FUSE HOLDER WITH 10 AMP FUSE SOLENOID VALVE JUNCTION BLOCK WHITE BLACK GRE...

Page 31: ...ATIC POWER DOWN FIG 31 1 STARTER SOLENOID WHITE WHITE CABLE BLACK CABLE BLACK BLACK GREEN RED RED 1 2 1 3 3 4 2 5 K1 1 2 SOLENOID VALVE S2 SOLENOID VALVE S1 DOWN UP CONTROL SWITCH POWER DOWN MODULE BA...

Page 32: ...ax Contact terminal torque 30 35 lb in max Solenoid Valves A S1 S2 Coil Resistance 6 6 70 F 15 26 7 70 F 15 Ampere 1 8A 0 9A Coil terminal torque 15 45 lb in max Valve cartridge torque 25 30 lb ft max...

Page 33: ...eplace the switch 4 Touch heavy jumper cables to terminals A B FIG 33 1 a If motor runs replace the motor solenoid b If motor does not run repair or replace the pump motor TROUBLESHOOTING Keep dirt wa...

Page 34: ...unscrew the valve stem Item 2 FIG 34 2 from the pump Push on the plunger that is located inside the valve stem by insert ing a small screwdriver blade in the end If the plunger does not move freely ap...

Page 35: ...r if it streams from the vent down port piston seals are worn Replace seals 5 Check filter in the pump reservoir Replace filter if necessary 6 Check for dirty pump motor relief valve Clean if necessar...

Page 36: ...al however if it streams from the vent down port piston seals are worn Re place seals 6 If pump cannot produce 3250 PSI and will not lift load of rated capacity the pump is worn and needs to be replac...

Page 37: ...lean flow control valve in high pressure hydraulic line attached to cylinder When installing flow control valve make sure arrow on valve is oriented as shown in FIG 37 3 4 See the CHECKING HYDRAULIC F...

Page 38: ...solenoid valve is getting power by holding a screwdriver against the top nut of the solenoid Push control switch to lower position to energize solenoid FIG 38 2 A good solenoid will attract magnetical...

Page 39: ......

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