Renishaw APCA-45, Installation And User Manual

Page: 45 / 48

27
Fault-finding
Symptom Cause Action
Poor system
repeatibility.
Mounting screws not fully tightened. Tighten screws to specified torque.
Loose stylus. Check 2 securing screws M3 × 3
are tight. If stylus is still loose, check
tightness of stylus mount with tool
M-5000-3707.
Swarf on stylus cube. Remove swarf.
Enable air bleed or air blast.
APCA-45 not mounted as recommended. Mount on solid base.
Probing feedrate is too high for the
machine controller.
Perform repeatibility trials at various
feedrates.
Temperature variation is causing
excessive movement of the machine and
the APCA-45. Minimise machine and APCA-45
temperature changes.
Increase the frequency of calibration.
Machine has poor repeatibility due to
loose encoders, backlash, tight slideways
and/or accidental damage. Perform health check on machine.
No probe
output. Wiring fault. Check wiring.
Probe has failed. Return APCA-45 to Renishaw for service.
Air bleed not
working.
Air bleed supply not connected or faulty. Check air connections.
No air from air
blast.
Air blast supply not connected. Connect air supply.
Air blast nozzle blocked. Clear blockage.
Cover not
extending or
retracting
Faulty air supply or swarf build up inside
or outside the APCA-45 Check air supply.
Clean the APCA-45 (see “Cleaning
instructions” on page 26.