Symptom:

Indexing plate does not get lifted.

Root Cause:
The lifting cylinder does not operate
Remedial Action:
Check valves and controls
Root Cause:
The pressure supply failed
Remedial Action:
Provide sufficient air pressure
Root Cause:
The clamping unit does not release
Remedial Action:
Check the function of the clamping unit
Root Cause:
The unit jams
Remedial Action:
Check the unit manually for free movements

Symptom:

The upper and lower end position does not get detected.

Root Cause:
Sensors defective
Remedial Action:
Replace sensors
Root Cause:
Switching distance or sensor position is not correct
Remedial Action:
Adjust sensors
Root Cause:
The end position of the stoke is not reached
Remedial Action:
Check the stroke of the cylinder and try to resolve the blockades

Symptom:

The pallet gets caught in the conveyor frame when lifting.

Root Cause:
The pallet has too much side play in the conveyor
Remedial Action:
Replace the side guide roller of the pallet

Symptom:

The pallet is not exactly located in the lifted position.

Root Cause:
Linear guide is worn out
Remedial Action:
Replace linear guide bushings
Root Cause:
Index pins worn out
Remedial Action:
Replace the index pins
Root Cause:
Pallet is not located on every four index pins
Remedial Action:
Adjust the index pins according to the documentation

Symptom:

The unit does not turn.

Root Cause:
The friction clutch is adjusted too weak
Remedial Action:
Adjust the friction clutch
Root Cause:
The drive motor is not controlled
Remedial Action:
Check the controls of the drive motor
Root Cause:
Mechanical blockade
Remedial Action:
Restore freedom of movement
Root Cause:
Shot pin is not controlled or not releasing
Remedial Action:
Check the controls of the locking pin