Grizzly MODEL G0765 owner manual Gib Adjustment, To adjust cross slide and compound slide gibs

Gib Adjustment

The goal of adjusting the gib screws is to remove sloppiness or "play" from the ways without over- adjusting them to the point where they become stiff and difficult to move.

In general, loose gibs cause poor finishes and tool chatter; however, over-tightened gibs cause premature wear and make it difficult to turn the handwheels.

The gib adjustment process usually requires some trial-and-error. Repeat the process as necessary until you find the best balance between loose and stiff movement. Most machinists find that the ideal gib adjustment is one where a small amount of drag or resistance is present, yet the handwheels are still somewhat easy to move.

Clean and lubricate the ways before beginning any adjustments. Refer to Lubrication on Page 51 for instructions and lubricant specifications.

Tools Needed	Qty
Open-End Wrench 7mm.	................................... 1
Hex Wrench 3mm	1

To adjust cross slide and compound slide gibs:

1.DISCONNECT LATHE FROM POWER!

2.Loosen three hex nuts on side of cross slide or compound slide (see Figures 82–83).

Cross Slide

Adjustment

Fasteners

Figure 82. Cross slide gib adjustment hex nuts

and cap screws.

Model G0765 (Mfd. Since 12/13)

Compound Slide

Adjustment

Fasteners

Figure 83. Compound slide gib adjustment hex

nuts and cap screws.

3.Adjust all three cap screws in small and equal increments, then test movement of slide by rotating handwheel.

Note: Turning cap screws clockwise tightens the gib, and turning them counterclockwise loosens the gib.

4.When satisfied with gib adjustment, use hex wrench to prevent cap screws from moving, then retighten hex nuts to secure the settings.

5.Recheck movement of slide and, if neces- sary, repeat Steps 2–4.

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