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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.
Lift will not raise off of latches.
TROUBLE SHOOTING
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.
4. Slider blocks need lubricating.
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 oc-
curs on outside installations or in
high humidity areas such as vehicle
wash bays.)
2. Latch spring broken.
3. Air valve stuck open.
1. No air supply.
2. Air valve stuck closed.
3. Air leak.
1. Motor, pump, or cylinder failure.
7
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.
1. Supply correct voltage to motor.
2. Clean lowering valve.
3. Replace relief valve cartridge.
4. Check vehicle weight and/or bal-
ance 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.
4. Lubricate with light lithium grease.
1. Adjust equalizer cables to correct
tension.
2. Shim lift to level columns (Not to
exceed
/
"). If over
/
1
1
2
floor and level per lift installation
instructions.
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. Cycle toggle, replace valve if
necessary.
1. Check tubing and compressor.
2. Cycle toggle, replace valve if
necessary.
3. Check tubing.
1. Contact lift manufacturer's Customer
Service.
" break out
2
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