Adjusting Leadscrew Backlash - Grizzly G0808 Owner's Manual

Adjusting Leadscrew
Backlash
Leadscrew backlash is the amount of motion or
"play" in leadscrew rotation before the attached
device begins to move. Leadscrews will always
have a certain amount of backlash that will
increase with normal wear.
Generally, 0.005"–0.010" leadscrew backlash is
acceptable to ensure smooth movement and
reduce the risk of premature thread wear. However,
if you find it necessary to adjust leadscrew back-
lash, perform the procedures listed below.
Tool Needed
T-Handle Hex Wrench 5mm .............................. 1
Model G0808 (Mfd. Since 11/15)
To adjust leadscrew backlash:
Use a 5mm hex wrench to tighten or loosen
the cap screws on the leadscrew nuts shown in
Figures 78–79, then test the amount of backlash
by slowly rocking the handwheels back-and-forth.
Repeat if necessary.
Qty
X-Axis
Leadscrew Nut
Figure 78. X-axis leadscrew nut located under
Y-Axis
Leadscrew Nut
Cap
Screws
Figure 79. Y-axis leadscrew nut located inside
Cap
Screws
right side of table.
Gap
knee.
Gap
-47-