Half Nut Adjustment

The rigidity of the half nut engagement is adjusted by tightening or loosening the half nut gib screws. Adjust the half nut if it feels too loose or too tight when being engaged. Movement that is too stiff will accelerate wear. Movement that is too slop- py will produce inaccurate turning or threading results.

Tool Needed

Qty

Hex Wrench 2mm

1

To adjust half nut:

 

1.DISCONNECT LATHE FROM POWER!

2.Disengage half nut.

3.Adjust gib set screws (see Figure 84) in small, even increments so one end of gib does not become tighter than the other.

Half-Nut

Set

Screws

Gib

Figure 84. Half nut gib adjustment set screws.

4.Engage/disengage half nut several times and notice how it feels. The adjustment is cor- rect when half nut firmly and easily engages leadscrew while opening and closing.

5.Repeat Steps 3–4, if necessary, until satis- fied with feel of half nut engagement.

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Fuse Replacement

This lathe features an on-board fuse designed to blow to protect sensitive electrical parts from thermal damage in the event of an overload. If the spindle does not start, replace the fuse.

Replacement fuse part number: P0765166.

To replace fuse:

1.DISCONNECT LATHE FROM POWER!

2.Unthread fuse holder by rotating counter- clockwise (see Figure 85) and remove fuse.

Fuse

 

Fuse

Holder

 

 

 

 

 

 

 

Fuse

Holder

Hole

Figure 85. Fuse holder and fuse.

3.Insert new fuse into fuse holder.

4.Re-install fuse holder.

Model G0765 (Mfd. Since 12/13)

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Grizzly MODEL G0765 owner manual Half Nut Adjustment, Fuse Replacement, To adjust half nut, To replace fuse