Setting Power Feed Rate - Grizzly G0750G Owner's Manual

Setting Power Feed Rate

The feed rate chart (see Figure 67 on previous
page for location) displays the settings for the
headstock feed controls for feed rates.
Examining the chart, you will see a series of
boxes separated by slashes. The top number is
the carriage feed rate, the bottom number is the
cross-slide feed rate, as shown in Figure 69.
Cross-Slide Feed
Rate
Figure 69. Cross slide and carriage feed rates.
Using the controls on the lathe, follow along with
the example below to better understand how to
set the lathe for the desired power feed rate.
Setting Cross-Slide Power Feed Rate of 0.0017
in./rev.
1.
Locate the box on the feed rate chart that lists
0.0017 in./rev., as shown in Figure 70.
60T Gear
Figure 70. 0.0017 in./rev. location on feed chart.
-50-
Carriage Feed
Rate
0.0017 in./rev.
2. Locate the applicable change gear on the
chart—in this case it is the 60T gear.
3. Install the 60T gear in the upper "a" position
so it meshes with the 120T gear (refer to
Power Feed Configuration on the next page
for details).
4.
Position the gearbox dials as directed by the
chart shown in Figure 71. Be sure to point
the top right dial to "N" select the fed rod and
disengage the leadscrew. If necessary, use
the chuck key to rock the spindle back and
forth to help mesh the gears.
Note: During all power feeding operations,
the top right dial is set to "N" so the feed rod
is selected.
0.0017
in./rev.
Figure 71. Gearbox dials positioned for 0.0017
in./rev.
5. The cross slide is now set up for a power feed
rate of 0.0017 in./rev.
Model G0750G (Mfd. Since 5/15)
"N"