Troubleshooting
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08.00 | PFH 150- 300 | Assembly and Operating Manual | en | 389270
5 Troubleshooting
5.1 Modul 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.
Component part defective.
Replace component or send it to SCHUNK
for repair.
5.2 The module does not travel through the entire stroke?
Possible cause
Corrective action
Dirt deposits between cover and piston.
Remove the cover, clean the product and
regrease it.
Dirt deposits between basic jaws and
guidance.
Disassemble and clean the product.
Pressure drops below minimum.
Check air supply.
Mounting surface is not sufficiently flat.
Check the evenness of the mounting surface.
Component part defective.
Send product with a SCHUNK repair order or
dismantle product.
When fastening the product from the side,
the maximum permissible depth of
engagement was exceeded.
Use suitable fastening screws.
5.3 Module opens or closes abruptly?
Possible cause
Corrective action
Too little grease in the mechanical guiding
areas.
Clean and lubricate product.
Compressed air lines blocked.
Check compressed air lines of damage.
Mounting surface is not sufficiently flat.
Check the evenness of the mounting surface.
