HOIST
WILL NOT RAISE
POSSIBLE
CAUSE
REMEDY
INSTRUCTION
1. Air in oil, (1,2,3,4)
1.Check oil level
The oil level should be up to the
bleed screw in the reservoir with
the
hoist
all the way down.
2. Cylinder binding, (5)
2. Check/Tighten inlet tubes
Replace inlet hose assembly.
3. Cylinder leaks
internally, (5)
3. Oil seal damaged or cocked
Replace oil seal and install
4.
Hoist
overloaded,
(6,5)
4. Bleed cylinders
See Installation Manual
5. Lowering valve
leaks, (7,8,1,5,9)
5. See Installation Manual
Consult
Hoist
Manufacturer
6. Motor runs
backwards, (10,12,9)
6. Check vehicle weight
Compare weight of vehicle to
weight limit of the
hoist
.
7. Pump damaged,
(5,9)
7. Flush release valve
Hold release handle down and start
unit allowing it to run for 15
seconds.
8. Pump won’t prime,
(1,2,3,4,5,11,9)
8. Replace with new part
Replace with new part
9. Relief valve leaks,
(8,5,9)
9. Return unit for repair
Return unit for repair
10. Voltage to motor
incorrect, (10,12,5)
10. Check motor is wired correctly
Compare wiring of motor to
electrical diagram on 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.
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