Adjustment Of Half-Nut Guide; Replacing The Shear Pin In The Leadscrew; Replacing The V-Belt - Jet BD-920W Operating Instructions And Parts Manual

9 x 20-inch belt drive bench lathe
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Adjustment of Half-Nut guide

Loosen two nuts (1, Figure 36) on the right side of
the apron and adjust the control screws (2, Figure
36) until both half nuts move freely without play.
Tighten both nuts.
Replacing the Shear Pin in the
Leadscrew
If the shear pin breaks, it must be replaced (Figure
37). To knock out the broken pin, the hex head
screw must be loosened and the pinion removed.
Take off the sleeve and remove the broken pin from
the sleeve and the leadscrew. Replace the sleeve,
line up the holes, fit the new pin, and assemble.

Replacing the V-Belt

Remove tension on the V-belt by pulling lever
toward front of the machine (Figure 38).
Remove belt from the pulley and replace with new
belt. Move lever toward motor to tension belt. Close
the cover.
Caution: to avoid breaking the belt, move the
tension lever towards the front of the machine
before starting (Figure 39).
Figure 39
Figure 36
Figure 37
Figure 38
20

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