RUN-OUT ADJUSTMENT:
STEP 4:
Position the dial indicator, as shown in the photo below, with the finger of the dial indicator
on the front and center of the stylus ball. Insert the 3/32” hex wrench in the run-out adjustment set
screw directly above the finger of the dial indicator. Loosen the set screw by turning the hex wrench
counter clockwise while watching the dial indicator reading decrease. Turn the hex wrench clockwise
and watch the dial indicator reading increase.
Run-out Adjustment set-up and effect of Set Screw Movement
STEP 5:
Rotate the spindle by hand (without touching the probe) so that the probe spins through a
full 360 degrees and watch the dial indicator to locate the high and low run-out rotation positions of the
stylus. Adjust the dial indicator so that the entire run-out of the tip can be seen on the dial. If the run-
out exceeds the range of the dial then begin at the highest point of the run-out and set the dial indicator
so it is at the limit of its range at this point.
STEP 6:
Rotate the probe so that the nearest run-out adjustment set screw is above the finger tip
of the indicator. Using the 3/32" hex wrench slowly turn the setscrew directly above the indicator
finger, in the counter clock-wise direction, the dial indicator will show the reduction in the run-out.
Stop loosening this set screw and tighten the set screw that was nearest the low run-out position. Do not
allow the probe to become loose on the mounting shank.
STEP 7:
Repeat steps 5 and 6 until no run-out of the tip is visible on the dial indicator needle. If
the screws become too tight before you have finished the adjustment,
do not force them
, instead
loosen the setscrew that corresponds with the highest reading on the dial indicator, (refer to figure 3.2)
and tighten the set screw at the lowest reading. Only adjust a set screw when it is directly above the
indicator finger. This way you can see the full effect of the adjustment you are making.
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