35
TP10KAC-DX
July 2018
6. Troubleshooting Guide
A.
Problem
Motor does not run.
Possible cause:
Solution:
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.
Replace 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.
B.
Problem
Motor runs but lift will not raise.
Possible cause:
Solution:
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 SAE-10, AW 32 or equivalent.
C
Problem
Lift will raise up only without load.
Possible cause:
Solution:
1. Motor running on low voltage.
2. Debris in lowering valve.
3. Improper relief valve adjustment.
4. Overloading.
1. Supply correct voltage to motor.
2. Clean lowering valve.
3. Replace relief valve cartridge.
4. Check or balance the vehicle weight on lift.
D
Problem
Lift
slowly settles down.
Possible cause:
Solution:
1. Debris in check valve seat.
2. Debris in lowering valve seat.
3. External oil leaks.
1. Clean check valve.
2. Clean lowering valve.
3. Repair external leaks.
E
Problem
Slow lifting speed or oil blowing out breather cap
Possible cause:
Solution:
1. Air mixed with oil.
2. Air mixed with oil suction.
3. Oil over filled.
1. Change oil to
‘non-foaming’ SAE-10, AW 32 or equivalent.
2. Tighten all suction line fittings.
3. Only fill or add oil to tank when lift is fully lowered.
F
Problem
Lift going up unleveled.
Possible cause:
Solution:
1. Equalizer cables out of adjustment.
2. Lift installed on unleveled floor.
1. Adjust the length of the cables again.
2. Level the floor or level the column base by shims.
G
Problem
Anchors will not stay tight.
Possible cause:
Solution:
1. Holes drilled oversize.
2. Concrete floor thickness or holding
strength not sufficient.
1. Relocate lift using a new bit to drill holes.
2. Break out old concrete and pour new pads, as required for
each lift column.
H
Problem
Locking latches do not engage.
Possible cause:
Solution:
1. Latch shafts rusted.
2. Latch spring broken.
3. Latch cable needs adjustment.
1. Oil latch mechanism. Grease the shaft.
2. Replace broken spring.
3. Adjust clamps at cable end.
