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1

1921 Slauson

A

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

16 F

AX (888) 771-7713

26

PUMP, MOTOR & SOLENOID OPERATION - GRAVITY 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)

MOTOR

SOLENOID VALVE

RAISE

PRESSURE

-

LOWER

VENT

-

REFER TO VALVES SHOWN ON

HYDRAULIC SCHEMATIC

MOTOR

PRESSURE

VENT

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Содержание TE-25

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

Страница 2: ......

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 39: ......

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