Troubleshooting
7 Troubleshooting
7.1 Product 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 product to the
maximum that the movement of the jaws occurs without
bouncing and hitting.
Check compressed air lines.
Inner diameters of compressed air lines are of sufficient size in
relation to compressed air consumption.
Keep compressed air lines between the product and directional
control valve as short as possible.
Flow rate of valve is sufficiently large relative to the compressed
air consumption.
IMPORTANT! The throttle check valve must not be removed,
even if the product has not reached the opening and closing
times.
If, despite optimum air connections, the opening and closing
times specified in the catalogue are not achieved, SCHUNK
recommends the use of quick-air-vent-valves directly at the
product.
Loading too large.
Check permissible weight and length of the gripper fingers.
7.2 Swivel movement is not executed immediately
Possible cause
Corrective action
Product was at a
standstill for a long
time.
• Vent the piston chamber.
• Swivel once to end and starting positions.
• Depressurize the product.
• Carry out several depressurized swivel movements.
•
IMPORTANT! Do not spray Teflon spray or penetrating oil into
the air connections!
This only leads to a short-term
improvement, but the grease lubrication will be washed out as
a result. If the product has already been treated with Teflon
spray or penetrating oil, it should be serviced or completely
relubricated.
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11.00 | GSM-P | Assembly and Operating Manual | en | 389104
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