Thread Settings & Change Gears - Grizzly G9036 Owner's Manual

thread settings &
change gears
the Model g9036 is capable of cutting metric,
inch, module, and diametral pitch threads. the
charts near the feed speed controls show how to
configure the change gears, levers, and knobs for
each type of thread.
the Model g9036 is shipped from the factory
with the 32, 85, and 100 tooth gears installed in
the machine, which is the configuration for turning
power feeds. the change gears are located on
the left-hand side of the lathe, behind the head-
stock cover.
always disconnect
machine from power
before changing gears.
accidentally starting
machine during gear
changes can cause
serious personal injury.
the following example explains a threading setup
for 1.75 pitch metric threads. since all the thread-
ing charts work the same way, completing this
example will show you how to set up your lathe for
threading any pitch shown on the charts.
to set up for 1.75 pitch metric threads:
1. disConneCt lAthe FroM poWer!
2.
remove the cover on the left-hand side of the
headstock to expose the change gears.
3. review the threading charts and find the
chart indicated for metric pitch (figure 57).
figure 57. Metric thread pitch chart.
Model g9036 Mfg. 7/08+ g9036 13" X 40" gear-head lathe
4.
install the necessary change gears shown
on the chart and position them so they mesh
where indicated (figure 58), but leaving
0.05"–0.08" backlash between gears.
Side
42 42
View
120
127
42
figure 58. setting up change gears for metric
pitch threading.
5. rotate the spindle by hand to ensure the
gears can spin and are not meshed so tightly
that they bind, adjust them if necessary, then
re-install the cover removed in step 2.
6. Move the threading dials and levers to the
positions that line up with the 1.75 box. the
shaded boxes in figure 59 show that this
configuration is BdMv.
figure 59. thread control settings for 1.75 pitch.
Front
View
127
120
42
Change gears
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