SCHUNK HGN 100, Assembly And Operating Manual

Page: 21 / 36

Troubleshooting
01.00|HGN |en 21
Troubleshooting
Module does not move?
Possible cause Corrective action
Base jaws jam in housing, possible cause:
bolting surface not sufficiently level. Check the levelness of the bolting surface.
(

7.1, Page 13)
Loosen the mounting screws for the gripper
and actuate the gripper again.
Pressure drops below minimum. Check oil supply
(

7.2, Page 15)
Oil- or control feedings are wrongly at-
tached Check oil- or control feedings
Proximity switch defective or set incorrect. Repair the proximity switch.
Oil feedings which are not used for the ap-
plication are not closed.
Close the oil feedings which are not used.
Flow control valve closed. Open the flow control valve.
Component is broken, e.g. through over-
loading Replace component or send the module
with a repair order to SCHUNK. Ensure that
the module was only used within its defined
application parameters.
The module does not travel through the entire stroke?
Possible cause Corrective action
Dirt deposits between the cover and
the piston Remove the cover, clean the module and
relubricate it.
(

9, Page 24)
Dirt deposits between the base jaws and
the guide Disassemble and clean module.
Pressure drops below minimum. Check oil supply
(

7.2, Page 15)
Mounting surface is not even enough Check the levelness of the bolting surface.
(

7.1, Page 13)
Component is broken, e.g. through over-
loading Send the module to SCHUNK with a repair
order or disassemble module.
8
8.1
8.2