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G0657/G0658 Benchtop Lathe
To remove the old belt:
1. DISCONNECT LATHE FROM POWER!
2. Release belt tension as described in
Changing Speed Ranges on
Page 19, then
remove the belt from the lower pulley.
3. Loosen both set screws on the spindle
handwheel (
Figure 47), and turn it clockwise
to unthread and remove it
.
Changing Belt
4. Loosen the set screw on the spindle pulley
and both lock collars (refer to
Figure 47 for
set screw locations
).
5. Tap the spindle far enough out of the head-
stock that the belt can be removed. A rubber
or wooden mallet may be required. Take care
not to damage the spindle threads or to lose
parts in the process (
Figure 48).
To install new belt:
1. Place the new belt over the spindle pulley.
2. Slide the spindle back through the headstock
and into the original position. A mallet may be
required.
3. Install the headlock spindle handwheel and
tighten both set screws.
4. Loosely install the belt on the motor pulley in
the inner or outermost position.
5. Adjust the spindle pulley position on the
spindle shaft to ensure proper belt align
-
ment (Figure 49), then tighten the pulley set
screw.
6. Position the spindle RPM sensor ring in-line
with the RPM sensor. Slide the lock collars
snug against each side of the sensor ring,
then tighten the set screws (
Figure 50).
Figure 49. Proper belt alignment.
Correct Alignment
Incorrect
Alignment
Figure 47 Set screw locations.
Figure 48. Belt removal.
Figure 50. RPM sensor.
7. Complete the new belt installation by fol-
lowing Steps 6-9 in the Changing Speed
Ranges procedure on Page 19.
Spindle Handwheel
Lock Collars
Spindle Pulley
Lock Collars
RPM Sensor Ring
RPM Sensor