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ADJUSTMENTS AND REPAIRS:
ADJUSTING LEAD SCREW BACKLASH
a. Remove plastic cover on the lead screw bracket.
b. Loosen lock nut ”A”under cover.
c. Tighten left side nut ”B”until backlash has been removed.
d. Re-tighten lock nut ”A”and replace plastic cover. (Figure 9)
ADJUDTING SPINDLE BEARINGS
The front and middle spindle bearings are precision taper roller bearings. To adjust:
a. Loosen set screw (Part #60) on locking NUT (Part #62).
b. Tighten locking nut (Part #62) to obtain proper preload. (Check by spinning
chuck by hand. Chuck should rotate freely for at least 2 revolutions).
c. Re-tighten set screw (Part #60) on lock nut. (Figure 10)
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