User guide

Troubleshooting l 6-15
6
Troubleshooting
Replacing Safety and Proximity
Switches
Three safety switches are included in CSC cutter sections: a keyed safety switch
on the knife guard, and a proximity switch on each cutter bushing. A failure in any
of these switches prevents the puller/cutter from running.
• Safety Switch
If you suspect a problem with the
keyed safety switch on the knife
guard, check for loose or damaged
wires. Replace the switch if wires
appear to be undamaged.
• Proximity Switches
The proximity switches on the cutter bushings have LEDs that light when
the bushing is sensed. If an LED does not light when both the bushing are
in place:
1 Check for loose or damaged wires.
2 Remove the cutter bushing and make sure the proximity switch is properly
positioned, i.e. 0.010" from the bushing surface.
3 Remove the proximity switch by loosening the bushing retaining system. Test
it by bringing an object close to the sensor when the power is turned on. If the
LED does not light, replace the proximity switch.
Proximity
Switches
Bushing Retaining System