Troubleshooting
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25.00 | DPZ-plus | Assembly and Operating Manual | en | 389035
6.2 The product is not executing the complete stroke
Possible cause
Corrective action
Dirt deposits between cover and piston.
Clean and if necessary re-lubricate.
Dirt deposits between basic jaws and
guidance.
Disassemble and clean the product.
Pressure drops below minimum.
Check air supply.
Mounting surface is not sufficiently flat.
Check the evenness of the mounting surface.
Component part defective.
Replace component or send it to SCHUNK
for repair.
Air purge set too high (> 0.5 bar).
Reduce air purge (max. 0.5 bar).
6.3 Product is opening or closing abruptly
Possible cause
Corrective action
Too little grease in the mechanical guiding
areas.
Clean and lubricate product.
Compressed air lines blocked.
Check compressed air lines of damage.
Mounting surface is not sufficiently flat.
Check the evenness of the mounting surface.
Excess pressure cannot be released when
using air purge.
Check the pressure control valve with drain
hole and replace if necessary.
Installing the ventilation connection/air
purge connection
6.4 The 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
movement space.
Clean and lubricate product.
Pressure drops below minimum.
Check air supply.
Component part defective.
Replace component or send it to SCHUNK
for repair.
Air purge reduces the gripping force when
closing.
Check the dimensioning.
