D 、 Adjustmentp - Sharp VH-25 Series Operator's Manual

D、 Adjustment
1. Steps in Backlash Adjustment of Upper Leadscrews:
a. Use an L-shape hexagonal spanner and perform the micro adjustment on adjusting screw
( B ) as arrowed on the plate.Meanwhile, turn the Long feed handwheel slignhtly until a
slight resistance is sensed. There is no backlash now between the headscrew and its nut.
b. If the adjustment is too tight, both the leadscrew and its nut will be worm out excessively
and their service life will be shortened.
c. Once the adjustments is completed, try the manual feed to see if the sliding is smooth or
not.
d. Each turn of adjusting screw may reduce the backlash by 0.034mm( 0.0013" ).
2. Adjustment of Play Between Gibs :
As a result of long-term operation between the sliding surface and gibs, the worm-out gibs will
create a clearance. Therefore, the gibs must be adjusted to maintain the precision of sliding
surfaces.
Fig.44
OPERATOR'S MANUAL
Fig.45
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