SCHUNK PGB 100, Assembly And Operating Manual

Page: 30 / 36

Trouble shooting
30 08.00|PGB 64 - 125|en
Module opens or closes abruptly?
Possible cause Corrective action
Too little grease in the mechanical guid-
ing areas of the module Clean the module and relubricate it.
(

9, Page 31)
Compressed air lines are blocked Check the compressed air lines for crushing or
damage.
Mounting surface is not even enough Check the levelness of the bolting surface.
Flow control valve is missing or not set
correctly Install and adjust flow control valve.
Load too high Review permissible weight and length of the
jaws
(

7.1, Page 14).
The gripping force drops?
Possible cause Corrective action
Compressed air can escape Check seals, if necessary disassemble module
and replace seals.
Too much grease in the mechanical
motion spaces of the module Clean the module and relubricate it.
(

9, Page 31)
Pressure drops below minimum. Check the air supply
(

7.2, Page 15)
Module does not achieve the opening and closing times?
Possible cause Corrective action
Compressed air lines are not installed
optimally. 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 compressed air
consumption
Flow rate of valve is sufficiently large relative to
the compressed air consumption.
If, despite of optimal air connections, the open-
ing and closing times are not achieved accord-
ing to the catalog, we recommend the use of
quick exhaust valves direct at the module.
8.3
8.4
8.5
www.comoso.com