Changing Gears - Grizzly G9729 Instruction Manual

Changing Gears

Changing gears on the Model G9729 is straight
forward. Refer to the label found on the bottom
of the lower belt guard for proper gear selection
while following the example below. We will be
changing the gears to those that would be used
to set the machine for a 0.002" per revolution
feed rate. These instructions assume that all of
the gears need to be changed. The number of
teeth are stamped on each gear.
Always disconnect the power to the machine
before making adjustments, set-up changes
or cleaning. Failure to do so could result in
injury to yourself and others.
NOTICE
Make sure the gears engage properly before
operating the machine. Damage to the gears
will occur if adjustments are not correct.
To change gears:
1. Unplug the lathe/mill!
2.
Remove the nuts on the end of the shafts
for gears A and D (see Figure 42).
3. Loosen the cap screw E, at the bottom of the
gear support bracket and allow it to rotate
downward.
4. Remove the cap screw in the middle of
the combination gear B/C. This will allow
removal of the gears and bushing supporting
them. A T-nut will remain in the gear support
bracket as in Figure 43.
5. Remove gears A and D.
6.
Replace the gears in positions A and D with
24 and 120 tooth gears, respectively.
G9729 Combination Lathe/Mill
Figure 42. Socket head screw and support
bracket with the gears in lower position.
Figure 43. The T-nut remains in the gear
support bracket.
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