Grizzly G4003G owner manual Gibs, Cross-slide Gib, see Figure

Gibs

There are three main gib adjustments for the Model G4003G. They are: the cross-slide gib, the compound slide gib and the saddle gib.

Cross-slide Gib, see Figure 52

The gib on the cross-slide is adjusted by the two screws located at each end. To adjust, loosen the set screw located along the edge of the cross-slide. This set screw is provided for locking the slide for certain operations. After making the adjustments detailed below, tighten the set screw until it just touches the gib.

The gib is wedge shaped and by loosening the screw closest to the operator and then tightening the opposite screw, the slide will become looser. Conversely, loosening the screw farthest away from the operator and tightening the closer screw will tighten the gib. Do not over tighten.

Adjust the gib so that it creates a slight drag when the slide is in motion. Test the ease of motion with the gib slightly loose. Begin tightening the gib and test after making small adjustments. When a slight drag is detected the gib is properly adjusted.

NOTICE

When adjusting gibs, keep in mind that the goal of gib adjustment is to remove unnec- essary sloppiness from the slide movement without causing them to bind. Loose gibs may cause poor finishes on the workpiece. Over tightening may cause premature wear.

G4003G Gunsmith's Lathe

Set Screw

Figure 52. Adjusting the cross-slide gib.

Compound Gib, see Figure 53

The gib on the compound is adjusted by the same method as the gibs on the cross-slide, except the screw closest to the operator (when the com- pound slide is aligned with the cross slide) must be loosened and the screw furthest from the operator tightened to make the gib tighter.

Set Screw

Figure 53. Adjusting the compound rest gib.

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