7
Trouble
Motor does not run.
Motor runs but will not raise lift.
Motor runs—raises unloaded lift but
will not raise vehicle.
Lift slowly settles down.
Slow lifting speed or oil blowing out
filler breather cap.
Lift going up unlevel.
Anchors will not stay tight.
Locking latches do not engage.
Locking latches do not disengage.
Remedy
1. Replace blown fuse or reset circuit
breaker.
2. Supply correct voltage to motor.
3. Repair and insulate all connections.
4. Replace switch.
5. Replace switch.
6. Replace motor.
1. Repair or replace lowering valve.
2. Tighten all suction line fittings.
3. Replace suction stub.
4. Fill tank with Dexron III ATF or ISOVG32
Hydraulic Oil.
1. Supply correct voltage to motor.
2. Clean lowering valve.
3. Replace relief valve cartridge.
4. Check vehicle weight and/or balance
vehicle weight on lift.
1. Clean check valve.
2. Clean lowering valve.
3. Repair external leaks.
1. Change oil to Dexron III ATF.
2. Tighten all suction line fittings.
3. Reinstall oil return tube.
1. Adjust equalizer cables to correct ten-
sion.
2. Shim lift to level columns (Not to ex-
ceed 1/2”). If over 1/2” break out floor
and level per lift installation instruc-
tions.
1. Relocate lift using a new bit to drill
holes.
2. Break out old concrete and repour
new pads for lift per lift installation
instruction.
1. Remove covers, oil latch mechanism.
Depress latch release handle several
times to allow oil to coat shaft.
2. Replace broken spring.
3. Adjust clamps at cable end per lift
installation instructions.
1. Replace cable.
2. Install conduit back in bracket; adjust
cable tension.
3. Adjust cable tension.
Cause
1. Blown fuse or circuit breaker.
2. Incorrect voltage to motor.
3. Bad wiring connections.
4. Motor up switch burned out.
5. Overhead limit switch burned out.
6. Motor windings burned out.
1. Open lowering valve.
2. Pump sucking air.
3. Suction stub off pump.
4. Low oil level.
1. Motor running on low voltage.
2. Debris in lowering valve.
3. Improper relief valve adjustment.
4. Overloading lift.
1. Debris in check valve seat.
2. Debris in lowering valve seat.
3. External oil leaks.
1. Air mixed with oil.
2. Air mixed with oil suction.
3. Oil return tube loose.
1. Equalizer cables
out of adjustment.
2. Lift installed on unlevel floor.
1. Holes drilled oversize.
2. Concrete floor thickness or holding
strength not sufficient.
1. Latch shafts rusted. (Usually occurs on
outside installations or in high humidity
areas such as vehicle wash bays.)
2. Latch spring broken.
3. Latch cable needs adjustment.
1. Latch cable is broken.
2. Latch cable conduit is out of guide
brackets.
3. Latch cable is loose.
TROUBLE SHOOTING
