Adjusting Gibs - Grizzly G4000 Owner's Manual

Adjusting Gibs

the gibs that affect the accuracy of the carriage,
cross slide, and compound slide movements along
their ways can be adjusted. the carriage uses a
gib clamp located on the rear of the carriage
saddle, and the cross slide and compound slide
use a wedge-shaped gib sandwiched between
the component base and the way.
the goal of gib adjustment is to remove unneces-
sary sloppiness without causing the ways to bind.
tight gibs make the movements more accurate,
but harder to perform. Loose gibs make the move-
ments sloppy, but easier to perform.
Tools Needed
hex Wrench 5mm .............................................. 1
Carriage Gib Clamp
1.
disConnECt LAthE FroM poWEr!
2.
Loosen the three cap screws that secure the
gib clamp underneath the rear of the carriage
saddle, as shown in figure 82.
Carriage
gib Clamp
figure 82. Carriage gib clamp cap screws (as
viewed from the rear of the carriage).
3. Manually move the carriage back-and-forth
to make sure the gib clamp is loose, then
tighten each of the cap screws just until you
feel resistance.
4. re-check the carriage movement and loosen
or tighten the cap screws equally until you are
satisfied with the gib clamp adjustment.
-52-
Qty
Cap screws
Tools Needed
Wrench 7mm ..................................................... 1
standard screwdriver #1 ................................... 1
Cross Slide & Compound Slide Gibs
1. disConnECt LAthE FroM poWEr!
2.
Loosen the three hex nuts on the side of the
device (see figures 83–84).
Cross slide gib Adjustment
hex nuts & set screws
figure 83. Cross slide gib adjustment hex nuts
and set screws.
NOTICE
Excessively loose gibs may cause poor
workpiece finishes,
undue wear of sliding surfaces and ways.
Excessively tight gibs may cause prema-
ture wear of the sliding devices.
Compound slide gib Adjustment
hex nuts & set screws
figure 84. Compound slide gib adjustment hex
nuts and set screws.
Model G4000 (Mfg. Since 8/09)
Qty
and may cause