ACU-RITE MILLPWR 3 Axes - Manual (Page 233)

TROUBLESHOOTING GUIDE
MILLPWR ®
Operation Manual 9-8
Align the spindle. Lower the
quill full travel with a sturdy
tool inserted into the spindle.
Set up a dial indicator to
check movement of the spin-
dle, then move the tool side-
to-side. Total movement
should be within the
machine tool manufacturer's
specifications between the
spindle and the spindle bear-
ings and between the quill
and the bore. You may need
to replace the spindle bear-
ings.
Machine tool wear.
MILLPWR can compensate
for machine tool wear
through its linear error com-
pensation (LEC) feature
(refer to Setup).
Symptom
Recommended
Corrective Action
Probable Cause
Check the gibs for wear and
proper adjustment. Refer to
the machine tool operation
manual. System not repeating or
circles are not round.
(cont’d) Machine tool related prob-
lems (cont’d)
Improper position feedback
from precision glass scales
or Z-axis Rotary encoder Check that the mounting brack-
ets and fasteners are tight and
secure.
For Z-axis Optional Linear
encoder:
Check the X- and Y-axis preci-
sion glass scale and reading
head for proper installation.