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LIFT WILL NOT RAISE
POSSIBLE CAUSE
1. Air in oil, (1,2,6,11)
2. Cylinder binding, (7)
3. Cylinder leaks internally, (7)
4. Motor run backward under pressure, (9)
5. Lowering valve leaks, (3,8,9)
6. Motor runs backwards, (5,9,12)
7. Pump damaged, (8,9)
8. Pump won’t prime, (1,6,8,9,10,11,12)
9. Relief valve leaks, (8,9)
10. Voltage to motor incorrect, (5,9,12)
REMEDY INSTRUCTION
1. Check for proper oil level. . . . . . . . . . . . . . . . . . . . . . . . . . The oil level should be up to the FILL screw
in the reservoir with the lift all the way down.
2. Bleed cylinders. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Installation Manual.
3. Dirty oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Use clean 10-WT hydraulic oil or Dexron-III automatic
transmission uid only. If uid/oil is contaminated,
replace with clean uid/oil and clean entire system.
4. Tighten all fasteners. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tighten fasteners to recommended torques.
5. Check motor is wired correctly. . . . . . . . . . . . . . . . . . . . . . . Compare wiring of motor to electrical diagram on
drawing.
6. Oil seal damaged or crooked . . . . . . . . . . . . . . . . . . . . . . . . Replace oil seal around pump shaft.
7. See Installation Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . Consult Lift Manufacturer.
8. Replace with new part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace with new part.
9. Return unit for repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Return unit for repair.
10. Check pump-mounting bolts . . . . . . . . . . . . . . . . . . . . . . . . Bolts should be 15 to 18 ft. lbs.
11. Inlet screen clogged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clean inlet screen or replace.
12. Check wall outlet voltages and wiring . . . . . . . . . . . . . . . . . Make sure unit and wall outlet are wired properly.
OUR LIFTS ARE SHIPPED WITHOUT OIL. ADD OIL TO POWER UNIT TANK BEFORE USE.
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