Table of Contents
Advertisement
6. Troubleshooting Guide
A.
Problem
Possible 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.
B.
Problem
Possible cause:
1. Open lowering valve.
2. Pump sucking air.
3. Suction stub off pump.
4. Low oil level.
C
Problem
Possible cause:
1. Motor running on low voltage.
2. Debris in lowering valve.
3. Improper relief valve adjustment.
4. Overloading.
Problem
D
Possible cause:
1. Debris in check valve seat.
2. Debris in lowering valve seat.
3. External oil leaks.
E
Problem
Possible cause:
1. Air mixed with oil.
2. Air mixed with oil suction.
3. Oil over filled.
F
Problem
Possible cause:
1. Equalizer cables out of adjustment.
2. Lift installed on unleveled floor.
Problem
G
Possible cause:
1. Holes drilled oversize.
2. Concrete floor thickness or holding
strength not sufficient.
H
Problem
Possible cause:
1. Latch shafts rusted.
2. Latch spring broken.
3. Latch cable needs adjustment.
Motor does not run.
Solution:
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.
Motor runs but lift will not raise.
Solution:
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.
Lift will raise up only without load.
Solution:
1. Supply correct voltage to motor.
2. Clean lowering valve.
3. Replace relief valve cartridge.
4. Check or balance the vehicle weight on lift.
Lift slowly settles down.
Solution:
1. Clean check valve.
2. Clean lowering valve.
3. Repair external leaks.
Slow lifting speed or oil blowing out breather cap
Solution:
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.
Lift going up unleveled.
Solution:
1. Adjust the length of the cables again.
2. Level the floor or level the column base by shims.
Anchors will not stay tight.
Solution:
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.
Locking latches do not engage.
Solution:
1. Oil latch mechanism. Grease the shaft.
2. Replace broken spring.
3. Adjust clamps at cable end.
35
TP10KAC-DX
July 2018
Advertisement
Table of Contents
