Adjusting Gibs - Grizzly G3616 Owner's Manual

Adjusting Gibs

The gibs control the accuracy of the table move-
ments. Tight gibs make the table movement more
accurate, but harder to move. Loose gibs make
the table movement sloppy, but easy to move.
NOTICE
When adjusting gibs, the goal of gib adjust-
ment is to remove unnecessary sloppi-
ness without causing the slides to bind.
Loose gibs may cause poor finishes on the
workpiece and may cause undue wear on
the slide. Over-tightening may cause pre-
mature wear.
Each sliding dovetail on the Model G3616/G3617
has a gib that is sandwiched between two adjust-
ment screws (see Figures 61–64 for the locations
of one end of each adjustment screw).
Some minor components must be removed to
access all the gib adjustment screws.
Adjust the gibs by loosening one screw and tight-
ening the other at the opposite end until a slight
drag is felt while moving the table/knee along the
dovetail slides; then tighten the loose screw at the
other end to lock the setting in place.
Note: The G3617 spindle support adjusts along
the dovetail slide by a clamping system.
Longitudinal Gib
Adjustment Screw
Figure 61 . Longitudinal gib location.
44
Cross Feed Gib
Adjustment Screw
Knee Feed Gib
Adjustment Screw
Figure 62. Cross feed and knee feed gib
locations.
Spindle Head Gib
Adjustment Screw
Figure 63. Spindle head gib location.
Spindle Support
Adjustment Screw
Figure 64. Spindle support gib location.
G3616/G3617 Mill