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6. Troubleshooting Guide
Problem
Cause
Solution
Motor does not run. 1. Blown fuse or circuit breaker
2. Incorrect voltage to motor
3. Motor up switch burned out.
4. Overhead limit switch burned out.
5. Motor windings burned out.
1.
Replace blown fuse or reset circuit breaker.
2.
Supply correct voltage to motor.
3.
Replace
switch.
4.
Replace
switch.
5.
Replace
motor.
Motor runs but
will not raise
hoist
.
1. Open lowering valve.
2. Pump sucking air
3. Suction stub off pump.
4. Low oil level
1. Repair or replace lowering valve.
2. Tighten all suction line fittings.
3. Replace suction stub.
4. Fill tank with AW32 or AW46
Motor runs-will
raises unloaded
hoist
but will not
raise motorcycle.
1.
Motor running on low voltage
2.
Lowering valve looses.
3.
Relief valve opens in advance.
4.
Overloading
hoist
1. Supply correct voltage to motor.
2. Clean lowering valve.
3. Reset the pressure of relief valve.
4. Check vehicle weight and/or balance vehicle
weight on lift.
Hoist
slowly
settles down.
1. Check valve is blocked.
2. Lowering valve isn’t opened fully.
1. Clean
check
valve.
2. Clean lowering valve.
Slow lifting speed
1. Air mixed with oil.
2. Suction stub looses
3. Relief valve opens in advance
4. Lowering valve looses
1. Change oil to AW32 or AW46
2. Tighten all suction line fittings.
3. Reset the pressure of relief valve
4. Clean lowering valve
Locking latches do
not engage.
1. Latch shafts rusted. (Usually
occurs on outside installation or in
high humidity areas such as
vehicle wash bays.)
2. Release the lock without lifting
3. Cable broken or bad connection
1. Remove covers, oil latch mechanism.
Depress latch release handle several times
to allow oil to coat shaft.
2. Lifting a short distance first.
3. Check the cable or replace
