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M1001 6" x 26" Vertical Mill
33 Cross nut.
32 Longitudinal nut.
Backlash is the amount of play found in a leadscrew.
It can be found by turning the cross slide handwheel
in one direction, and then turning the handwheel the
other direction. When the cross slide begins to move, the
backlash has been taken up.
Leadscrews are adjusted for backlash at the factory
and should not need any adjustment for many hours of
machine use, if ever. Keeping a clean and well lubricated
machine will ensure long leadscrew life.
Slightly tighten the two cap screws on the
longitudinal nut (see 32). DO NOT
overtighten.
Rotate the handwheel in both directions to see if
backlash has been reduced or eliminated. There
should only be a slight drag when turning the
handwheel.
If the cap screws are too tight, it will
cause excessive wear to the longitudinal nut and
leadscrew, which could lead to costly repairs.
Slightly tighten the two cap screws on the cross nut
(see 33). DO NOT overtighten.
Rotate the handwheel in both directions to see if
backlash has been reduced or eliminated. There
should only be a slight drag when turning the
handwheel.
If the cap screws are too tight, it will cause
excessive wear to the cross nut and leadscrew, which
could lead to costly repairs.
Adjustment Cap Screws
Adjustment Cap Screws
Longitudinal Nut
Cross Nut