Troubleshooting
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03.00 | RP / RW / RC | Assembly and Operating Manual | en | 389392
7.1.4 Module opens / does it grip the workpiece hard?
Possible cause
Corrective action
Exhaust throttle defective.
Replacing the exhaust air throttle.
Stroke speed too high.
Setting the exhaust air throttle.
7.1.5 Gripping force is dropping
Possible cause
Corrective action
Compressed air can escape.
Check seals, if necessary, disassemble the
product and replace seals.
Too much grease in the mechanical move-
ment space.
Clean and lubricate product.
Maintenance
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Pressure drops below minimum.
Check air supply.
Link Pneumatischer Anschluss
Component part defective.
Replace component or send it to SCHUNK
for repair.
7.1.6 Is the gripper not able to grip or hold on to the workpiece?
Possible cause
Corrective action
The workpiece weighs too much
Use a larger gripping module
The gripper jaws are too long
Place the gripping point further inside
Non-optimal engineering design
Adapt the engineering design – form-fit grip-
ping
7.1.7 Module does not achieve the opening and closing times?
Possible cause
Corrective action
Compressed air lines are not installed optim-
ally.
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 relat-
ive to the compressed air consumption.
