Troubleshooting
02.00 | GWB | Assembly and Operating Manual | en | 389122
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5 Troubleshooting
5.1 Module does not move?
Possible cause
Corrective action
Base jaws jam in housing, e.g. mounting
surface is not sufficiently even.
Check the evenness of the mounting surface.
Loosen the mounting screws of the product
and actuate the product again.
Pressure drops below minimum.
Check air supply.
Compressed air lines switched.
Check compressed air lines.
Proximity switch defective or set incorrect.
Readjust or change sensor.
Unused air connections open.
Close unused air connections.
Flow control valve closed.
Open the flow control valve.
Component part defective.
Replace component or send it to SCHUNK
for repair.
The aperture angle is limited to 0°.
Check opening angle limitation.
5.2 Module opens or closes abruptly?
Possible cause
Corrective action
One-way flow control valve is missing or
adjustet incorrectly.
Install and adjust one-way flow control
valve.
Loading too large.
Check permissible weight and length of the
gripper fingers.
5.3 Gripping force is dropping
Possible cause
Corrective action
Compressed air can escape.
Check seals, if necessary, disassemble the
product and replace seals.
Too much grease in the mechanical
movement space.
Clean and lubricate product.
Pressure drops below minimum.
Check air supply.
Component part defective.
Replace component or send it to SCHUNK
for repair.
