Jet JTM-1050, Operating Instructions And Parts Manual

Page: 20 / 36

20
5. Turn nut slightly to tighten it against opposing
nut.
6. Tighten the two nut locking screws.
7. Using cross-feed crank, move table to middle
position.
8. Set up a dial indicator to check cross feed
backlash. Gently move cross feed crank back
and forth while watching dial indicator.
Backlash should be between 0.003 inch and
0.005 inch.
9. If necessary, repeat the above steps to set
backlash.
10. Install pleated way cover.
13.8.2 Longitudinal backlash
Refer to Figure 23.
1. Only one of the longitudinal leadscrew nuts
can be adjusted; the other nut is fixed. The left
hand nut is typically adjustable. This can be
determined by looking at nut from underside of
table.
2. Loosen the two nut locking screws.
3. Turn the nut slightly to tighten it against the
opposing nut.
4. Tighten the two nut locking screws.
5. Using one of the longitudinal table cranks,
move table to middle position.
6. Set up a dial indicator to check longitudinal
backlash. Gently move crank back and forth
while watching dial indicator. The backlash
should be between 0.003 inch and 0.005 inch.
7. If necessary, repeat the above steps to set
backlash.
Figure 22: Leadscrew backlash adjustment