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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 stops short of full rise or chatters.
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.
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. Cable is off sheaves/upper guides.
3. Latch cable is loose.
1. Low oil level.
2. Air in hydraulic lines/cylinder.
1. Motor, pump, or cylinder failure.
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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 to proper level with ISOVG32
Hydraulic Oil or Dexron III ATF.
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 using ISOVG32 Hydraulic Oil or
Dexron III ATF.
2. Tighten all suction line fittings.
3. Reinstall oil return tube.
1. Adjust equalizer cables to correct tension.
2. Shim lift to level columns (Not to exceed
1/2" (13mm)). If over 1/2" (13mm) break
out floor and repour per lift installation
instructions.
1. Relocate lift using a new bit to drill holes.
Reference installation instructions for
minimum spacing requirements.
2. Break out old concrete and repour new
pads for lift per lift installation instructions.
1. Remove covers, oil latch mechanism.
Actuate latch release handle several times
to allow oil to coat shaft.
2. Replace broken spring.
3. Adjust clamp at cable end per lift
installation instructions.
1. Replace cable.
2. Check position of cable on sheaves/upper
guides; adjust cable tension.
3. Adjust cable tension.
1. Fill tank to proper level with ISOVG32
Hydraulic Oil or Dexron III ATF.
2. Bleed lift per installation instructions.
1. Contact lift manufacturer's Customer
Service.
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