41
WILL NOT RAISE LOADED LIFT
REMEDY
INSTRUCTION
1. Check oil level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The oil level should be up to the bleed screw in the
reservoir with the lift all the way down.
2. Check/Tighten inlet tubes . . . . . . . . . . . . . . . . . . . . . . . . . . Replace inlet hose assembly.
3. Oil seal damaged or cocked . . . . . . . . . . . . . . . . . . . . . . . . Replace oil seal and install.
4. Bleed cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Installation Manual.
5. See Installation Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . Contact BendPak Customer Support.
6. Check vehicle weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Compare weight of vehicle to weight limit of the lift.
7. Flush release valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hold release handle down and start unit allowing it to
run for 15 seconds.
8. Replace with new part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace with new part.
9. Return unit for repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Return unit for repair.
10. Check motor is wired correctly . . . . . . . . . . . . . . . . . . . . . . . Compare wiring of motor to electrical diagram on
power unit drawing.
11. Inlet screen clogged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clean inlet screen or replace.
12. Check wall outlet voltage and wiring . . . . . . . . . . . . . . . . . . Make sure unit and wall outlet is wired properly.
LIFT WILL NOT STAY UP
REMEDY
INSTRUCTION
1. Check oil level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The oil level should be up to the bleed screw in the
reservoir with the lift all the way down.
2. Oil seal damaged and cocked . . . . . . . . . . . . . . . . . . . . . . . . Replace oil seal around pump shaft.
3. Bleed cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Refer to Installation Manual.
4. Flush release valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hold release handle down and start unit allowing it to
run for 15 seconds.
5. Replace with new valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace with new valve.
6. Return unit for repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Return unit for repair.
7. See Installation Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Contact BendPak Customer Support.
8. Check complete hydraulic system for leaks. . . . . . . . . . . . . . Tighten all hydraulics fi ttings and inspects all hoses.
POSSIBLE CAUSE
1. Air in oil, (1,2,3,4)
2. Cylinder binding, (5)
3. Cylinder leaks internally, (5)
4. Lift overloaded, (6,5)
5. Lowering valve leaks, (7,8,1,5,9)
6. Motor runs backwards, (10,12,9)
7. Pump damaged, (5,9)
8. Pump won’t prime, (1,2,3,4,5,11,9)
9. Relief valve leaks, (8,5,9)
10. Voltage to motor incorrect, (10,12,5)
POSSIBLE CAUSE
1. Air in oil, (1,2,3)
2. Check valve leaks, (6)
3. Cylinders leak internally, (7)
4. Lowering valve leaks, (4,5,1,7,6)
5. Leaking fi ttings, (8)
