Adjusting Backlash - Grizzly G0678 Owner's Manual

Adjusting Backlash

Leadscrew backlash is the amount of motion the
leadscrew rotates before the device begins to
move. Leadscrews always have a certain amount
of backlash that will increase with wear. Generally,
0.005"–0.010" of backlash is acceptable.
The backlash of the longitudinal and cross
leadscrew can be adjusted by changing the gap
in the leadscrew nuts (see Figures 44–45).
Longitudinal
Leadscrew Nut
Figure 44. Longitudinal leadscrew nut.
Gap
Cap
Screw
-32-
Use a 5mm hex wrench to tighten or loosen
the cap screws on the leadscrew nuts shown in
Figures 44–45, then test the amount of backlash
Gap
by slowly rocking the handwheels back-and-forth.
Cap
Screws
Cross
Leadscrew Nut
Figure 45. Cross leadscrew nut.
Model G0678 (Mfd. Since 06/15)
Cap
Screws
Gap
Cap
Screw