Sharp TMV Series Service And Parts Manual page 43

2. Adjustment of Backlash of Longitudinal Leadscrew:
a. Move the work table to the center of saddle.
b. Insert the large end of backlash adjustment tool into the left side of saddle. Turn
the locking nut (J) counterclockwise one round. Reverse the end of adjustment
tool and insert the small end into same position and turn the leadscrew adjusting
nut (K) clockwise.
c. Turn the crank (F) slightly clockwise and counterclockwise and measure a
clearance of approximately 3 to 4 graduations on the dial (0.06-0.08mm or
0.003"-0.004"), before the nut is locked up lightly again.
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