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Possible cause
Air supply interrupted
System pressure too low
Connections mixed up
Unused air connections not
sealed
Active air connections sealed
Possible cause
Air is not oiled
Chuck piston screw broken
(overload)
Piston rod or piston rod screw
connection broken (overload)
Active air connections sealed
Possible cause
Proximity switch not switching Adjust the switching distance to the recess in the base jaw
Proximity switch not switching Completely disassemble the proximity switch along with
Proximity switch switching
sporadically
Proximity switch cable
damaged
Cable plug-in connection to the
supply cable
Proximity switch moves
independently
Both proximity switches
reporting the same switching
signal simultaneously
6 Troubleshooting
Clamping force block chuck jaws will not move
Solution(s)
Check air supply
Increase system pressure according to clamping system
technical specifications
Check connections and functions and connect properly
Seal front or base connections using accessories (included
in scope of delivery)
Remove set-screws from sealed air connections
Piston will not move
Solution(s)
Check maintenance unit, perform maintenance
Place oiler closer to clamping system
Set required oil level
Send clamping system to SCHUNK for repairs or
disassemble clamping system and repair using original
SCHUNK spare parts
Send clamping system to SCHUNK for repairs or
disassemble clamping system and repair using original
SCHUNK spare parts
Remove set-screws from sealed air connections
No control of switching valves due to missing signal output
Solution(s)
and clamp it in place
Adjust position slightly forward or backward
the retaining plate and check the switching functions on
the sensor head (replace proximity switch if necessary)
Readjust the position
Adjust position to workpiece tolerances
Replace proximity switch
Replace supply cable
Check the plug-in connections, tighten if necessary
Replace IN proximity switch or separately available supply
cable
Tighten the hexagonal nut for clamping
Replace IN proximity switch
Readjust the proximity switch switching position
03.00 | KSP3-IM, KSP3-LH-IM | TANDEM Clamping Block | en | 1474090
Troubleshooting
31
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