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Adjusting
Spindle Gib
The gib controls the smoothness of the slide
movement, as well as the run-out or end play of
the spindle. Tightening the gib too much will make
it hard to adjust the height of the spindle and
cause excessive wear on the slide. Loosening the
gib too much will introduce spindle end play and
cause poor cutting results and excessive wear on
the spindle bearings.
Checking Gib Adjustment
1.
DISCONNECT MACHINE FROM POWER!
2.
Use spindle height handwheel to raise
spindle to its highest position.
— If it is difficult to turn handwheel or you
feel resistance from spindle slide, gib may
need to be loosened.
3.
Attempt to wiggle top of spindle. If there is
movement, gib may need to be tightened.
Model G0900 (Mfd. Since 03/20)
Adjusting Gib
Tools Needed
Open-End Wrench 30mm ................................. 1
Hex Wrench 10mm ............................................ 1
To adjust gib:
1.
DISCONNECT MACHINE FROM POWER!
2.
Loosen jam nuts on gib adjustment set
screws (see Figure 77).
Figure 77. Location of gib set screws and jam
nuts.
3.
Evenly adjust set screws small amounts, then
test results.
4.
When you are satisfied with gib adjust-
ment, re-tighten jam nuts without turning set
screws.
5.
Re-check gib adjustment. If necessary, repeat
Steps 2–4.
Qty
Gib
Adjustment
Set Screws &
Jam Nuts
(1 of 4)
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