02.00 | KSH3 IM | Assembly and Operating Manual | en | 1477686
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Troubleshooting
6
Troubleshooting
Clamping force block chuck jaws will not move
Possible cause
Solution(s)
Oil supply interrupted
Check the hydraulic supply
System pressure too low
Increase system pressure according to clamping
system technical specifications
Connections mixed up
Check connections and functions and connect
properly
Hydraulic connections that are in use
are closed
Check connections and open
No control of switching valves due to missing signal output
Possible cause
Solution(s)
Proximity switch not switching
Adjust the switching distance to the recess in the
base jaw and clamp it in place
Adjust position slightly forward or backward
Proximity switch not switching
Completely disassemble the proximity switch
along with the retaining plate and check the
switching functions on the sensor head (replace
proximity switch if necessary)
Proximity switch switching sporadically
Readjust the position
Adjust position to workpiece tolerances
Proximity switch cable damaged
Replace proximity switch
Replace supply cable
Cable plug-in connection to the supply
cable
Check the plug-in connections, tighten if
necessary
Replace IN proximity switch or separately
available supply cable
Proximity switch moves independently
Tighten the hexagonal nut for clamping
Replace IN proximity switch
Both proximity switches reporting the
same switching signal simultaneously
Readjust the proximity switch switching position
Clamping force block does not complete stroke
Possible cause
Solution(s)
Chips or dirt between covering strip
and base jaws
Unscrew the covering strip (item 8) and remove
chips and dirt
Clamping force getting weaker
Possible cause
Solution(s)
Clamping force block not sealed tightly
Check connection and seal screws; reseal or
replace
Seals damaged
Disassemble clamping force block and replace all
the seals (see sealing kit lists