Gibs And Backlash - Shop fox M1110 Owner's Manual

Gibs and Backlash

During the life of your mill drill, you may have to adjust
the gibs and the handwheels to remove any lash or loose-
ness that is a result of normal wear. Do not overtighten
the gibs or half-nuts, or premature wear will occur.
To adjust the table gibs and the handwheel backlash,
do these steps:
1. DISCONNECT THE MILL FROM POWER!
2. Loosen the four lock nuts (Figure 29).
3. When properly adjusted, the table should move with
slight resistance as felt in the handwheel. Each gib
has multiple lock nuts and set screws that must also
be adjusted. Make your adjustments equally and in
small increments.
4. Tighten the lock nuts.
5. Remove the table end-plate cap screws and the end
plate (Figure 30).
6. Locate the X-axis lead screw half-nut (Figure 31),
and adjust both cap screws until the handwheel has
approximately 0.003" backlash as shown by the dial.
7. Repeat Step 6 on the Y-axis leadscrew half-nut and
lubricate the lead screws with white lithium grease
and oil the gibs.
8. Reinstall the end plate.
M1110 Mill with Dovetail Column
Figure 29. Gib screws and adjustment.
Figure 30. Table end-plate.
Half-Nut Cap Screw
Lead Screw Half-Nut
Figure 31. Handwheel backlash
-26-
End-Plate Cap Screws
Lead
Screw
adjustment.