Gib Adjustments - Grizzly G9036 Owner's Manual

gib adjustments

there are three main gib adjustments for the
Model g9036: the cross-slide gib, the compound
slide gib and the saddle gib.
When adjusting gibs, the goal of gib adjustment
is to remove unnecessary sloppiness from the
movement of the slides without causing them to
bind. loose gibs may cause poor finishes on the
workpiece. over tightening may cause premature
wear.
tools needed
Flat head screwdriver (small head) ................. 1
Flat head screwdriver (large head) ................. 1
Wrench 10mm ................................................... 1
cross slide gib
this gib is a wedge-shaped plate that, depending
on which direction it is moved, either increases or
decreases pressure on the sliding components
around it. figure 89 shows the gib components
for the cross slide.
Front gib screw
gib
figure 89. Cross slide gib components.
Model g9036 Mfg. 7/08+
Qty
set screw
on the cross slide, moving the gib toward the
back of the machine increases pressure and
moving the gib toward the front of the machine
decreases pressure.
the gib is moved by rotating the screws at both
ends. since these screws are at both ends, one
screw must be backed away from the gib in order
to move the other one toward the gib.
in addition, there is a set screw on the side of the
cross slide that can be used for locking the cross
slide for certain operations. this set screw must
be backed out of the way before the gib can be
adjusted properly.
to adjust the cross slide gib:
1. loosen the set screw on the side of the cross
slide (see figure 89).
2. loosen the gib screw at the back end of the
cross slide.
3.
Adjust the gib screw at the front end of the
cross slide approximately an
rotate the cross slide handwheel and notice
the resistance or drag on the cross slide.
4. repeat step 3 as necessary until the gib
screw drag is acceptable.
compound slide gib
the compound slide gib adjusts in the same
manner as the cross slide gib. however, on
the compound slide, moving the gib toward the
adjustment handle increases pressure and mov-
ing the gib toward the tool post decreases pres-
sure. figure 90 shows the gib components for the
compound slide.
set screw
Front gib screw
figure 90. Compound slide gib components.
⁄ of a turn, then
1
8
-51-