Motor Brushes; Belt Replacement - Jet JWL-1221VS Operating Instructions And Parts Manual

Bearings are permanently lubricated and sealed.
They do not require further lubrication.

12.2 Motor Brushes

Referring to Figure 28:
Periodically inspect the two carbon brushes located
at each side of the motor. If brushes need
replacing, replace both at the same time.
A heavily worn or damaged
brush, if allowed to remain, may eventually
cause damage to internal motor elements.
1. Disconnect lathe from power.
2. Unscrew cap (A,
screwdriver or coin, and withdraw brush.
3. Inspect brush. Replace brush if any of the
following are seen: Brush is worn 1/4" (6mm)
or more, collapsed spring, broken lead in
spring, abnormal
breakage, burning or crumbling.
4. Reinsert brush, or install new one, and screw
in cap.
5. Repeat inspection for brush on opposite side
of motor.
Figure 28

12.3 Belt replacement

Referring to Figures 29, 30, 31:
1. Disconnect lathe from power.
2. Release belt tension (see Figure 14), and
open pulley access doors.
3. Remove spur center and faceplate.
4. Engage spindle lock, and loosen both set
screws (A) in handwheel with 3mm hex key.
Unscrew handwheel from spindle. (Note: Left-
hand threads; turn clockwise to remove.)
5. Disengage spindle lock.
6. Loosen both setscrews (B) in spindle pulley.
Figure 28) using a
discoloration, signs of
7. Remove three button head screws on the
cover (C, Figure 30), and remove cover.
NOTE: The spindle lock will pop out with its
spring. Be careful not to lose these parts.
8. Use a rubber mallet, or hammer against a
block of wood, to tap spindle toward tailstock
(Figure 31).
hammer directly against the spindle.
9. Continue pulling spindle toward tailstock until it
clears left hole in headstock and offers enough
room to remove belt (Figure 32).
20
Figure 29
Figure 30
Never use a steel face
Figure 31