Troubleshooting
08.01|PFH 30-50|en
25
The gripping force drops?
Possible cause
Corrective action
Compressed air can escape
Check seals, if necessary disassemble mod-
ule and replace seals.
Too much grease in the mechanical motion
spaces of the module
Clean the module and relubricate it.
Pressure drops below minimum.
Check the air supply.
Module does not achieve the opening and closing times?
Possible cause
Corrective action
Compressed air lines are not installed opti-
mally.
If present: Open the flow control couplings
on the module to the maximum that the
movement of the jaws occurs without
bouncing and hitting.
Check compressed air lines.
Inner diameter of the compressed air lines
are sufficiently large relative to the com-
pressed air consumption
Compressed air lines between module and
control valve shoud be kept as short as poss-
ible.
Flow rate of valve is sufficiently large rela-
tive to the compressed air consumption.
If, despite of optimal air connections, the
opening and closing times are not achieved
according to the catalog, we recommend
the use of quick exhaust valves direct at the
module.
8.4
8.5
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