| Symptom |
Reason |
Solution |
| Motor doesn’t run |
- Check circuit breaker or fuse.
- Check voltage to motor.
- Check all wire connections.
- Failed limit switch.
- Burnt motor wire.
|
- Replace burnt fuse or reset circuit breaker.
- Supply correct voltage to motor.
- Repair all wire connections.
- Replace limit switch.
- Replace motor.
|
Motor is running,
but the lift can’t be raised. |
- Motor rotation is reversed.
- Lowering valve body is open.
- Hydraulic pump sucks air.
- Suction tube is separate from hydraulic pump.
- Low oil level.
|
- Change motor rotation by changing wire connection.
- Repair or replace lowering valve body
- Fasten all suction pipe fittings
- Replace suction tube
- Add oil into the oil tank
|
| Motor is running, lift can be raised without load, but vehicle can’t be raised |
- Motor is running under low voltage.
- Impurities inside lowering valve body.
- Pressure of safety valve is incorrect.
- Lift is overloaded.
|
- Supply correct voltage to motor
- Clean lowering valve body.
- Adjust safety valve
- Check weight of the vehicle
|
| Lift is lowering slowly without pressing lowering handle |
- Impurities on lowering valve body.
- External oil leakage.
|
- Clean lowering valve body
- Repair external oil leakage
|
| Lifting speed is slow or oil flows from oil filler cap |
- Air and oil are mixed.
- Air and oil suction are mixed.
- Loose oil return pipe.
|
- Replace hydraulic oil
- Fasten all suction pipe fittings
- Retighten oil return pipe
|
Lift can’t rise horizontally |
- Balance cable is not adjusted properly.
- The lift is installed on unlevel ground.
|
- Adjust proper tension of balance cable
- Shimming the columns to level the lift. If exceeding 12mm, pour new concrete floor and make it leveled. Refer to installation description.
|
Anchor bolt is not fastened |
- Drilled hole is too big.
- Concrete floor thickness or fastening force is insufficient.
|
- Pour the fast curing concrete into the big hole and reinstall the anchor bolt, or use new drill to drill the hole for re-positioning the lift
- Cut open the old concrete and make new concrete floor for the lift. Refer to installation description.
|