Troubleshooting
20
03.00 | PWG-S | Assembly and operating manual | en | 389361
5 Troubleshooting
5.1 Product 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.
Mechanical connection [
}
14]
Pressure drops below minimum. Check air supply.
Technical data [
}
13]
Compressed air lines switched. Check compressed air lines.
Pneumatic connection [
}
15]
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.
5.2 Product is not executing the complete stroke
Possible cause Corrective action
Dirt deposits between cover and piston. Clean and if necessary re-lubricate.
Dirt deposits between basic jaws and
guidance.
Disassemble and clean the product.
Pressure drops below minimum. Check air supply.
Pneumatic connection [
}
15]
Mounting surface is not sufficiently flat. Check the evenness of the mounting surface.
Mechanical connection [
}
14]
Component part defective. Replace component or send it to SCHUNK
for repair.
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.
Pneumatic connection [
}
15]
Component part defective. Replace component or send it to SCHUNK
for repair.
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