Gibs
There are three gib adjustments for the Model
C8—the cross-slide gib, the compound slide
gib, and the saddle gib.
Cross-slide Gib
—The gib on the cross-slide is
adjusted by tightening or loosening the five gib
screws located on the right-hand side of the
slide (shown in
Figure 33
). Before adjusting
the gib screws, loosen their jam nuts.
The gib is held in place by the setscrews. DO
NOT overtighten. The gib is properly adjusted
when a slight drag is detected while turning the
hand crank. This drag should be evenly
distributed among the 4 setscrews, so adjust
each screw evenly.
Compound Gib
—The gib on the compound
has four screws that maintain tension on the
slide (see
Figure
33
). These screws are held in
place with retaining nuts.
To adjust, loosen the retaining nuts and then
tighten the screws evenly to achieve a slight
drag when turning the hand crank. When proper
tension has been achieved, tighten the retaining
nuts while maintaining the position of the
screw with a hex wrench.
Carriage Gibs
—There are four tensioning
screws for both the front and rear saddle gibs
(see
Figures 34 & 35)
.
Before making adjustments to the saddle gib,
ensure that the front lock lever is loose by
turning it counterclockwise. It is important that
the screws are tightened evenly. A slight drag
should be detected while turning the hand crank
at the end of the lathe.
Figure 33 .Cross slide and compound gib
screws.
Figure 34 .carriage gibs screws.
Figure 35. carriage gibs screws.
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Summary of Contents for 941A
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