Model G0757 (Mfg. Since 6/13)
-53-
Adjusting Leadscrew
Backlash
Leadscrew backlash is the amount of free play
movement in the leadscrew (when the leadscrew
moves but the table does not) after changing the
direction of rotation.
A leadscrew must have a certain amount of back-
lash to rotate easily, but over time, it increases
with wear. Generally, 0.003"–0.006" leadscrew
backlash is acceptable to ensure smooth move-
ment and reduce the risk of premature thread
wear.
The X-axis leadscrew backlash is adjusted using
a long 4mm hex wrench to tighten/loosen the cap
screws on the leadscrew nut. This adjusts the
force the leadscrew nut exerts on the leadscrew
threads.
Figure 71. Location of X-axis leadscrew nut cap
screws for adjusting backlash.
X-Axis Leadscrew Nut
Cap Screws
The X-axis leadscrew nut shown in
Figure 71 is
accessed from underneath the right side of the
table.
Содержание G0757
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