Inch Threads; Setting Power Feed Rate - Grizzly G0776 Owner's Manual

D
Figure 67. Apron power feed controls.
D. Feed Selection Lever: Changes the power
feed to either the cross slide or the carriage.
When the lever is up, the cross slide is select-
ed. When the lever is down, the carriage is
selected. In the middle position neither the
cross slide nor the carriage will move.
Note: The feed selection lever must slide to
the right before it can move downward. This
is a safety feature designed to prevent the
lever from engaging the cross feed when
lifted to disengage the longitudinal feed.
Note: When using this lever, you may need
to slightly rotate the handwheel of the com-
ponent you are trying to engage, so that the
apron gears can mesh.

Setting Power Feed Rate

The feed-rate chart (see Figure 66 on previous
page for location) displays the settings for the
headstock feed controls for feed rates.
Model G0776 (Mfd. Since 7/14)
Examining the chart, you will see two rows of
Z Gear headings shaded in gray, indicating the
tooth count of the gear in the "Z" position (see
Figure 68).
INCH THREADS
Figure 68. Feed rate chart/Z Gear headings.
This symbol indicates longitudinal feed rates.
This symbol indicates cross 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 Power Feed Rate of 0.0021 in./rev.
1. DISCONNECT LATHE FROM POWER!
2. Locate box on feed rate chart that lists 0.0021
in./rev., as shown in Figure 69.
48T Gear
Figure 69. 0.0021" location on feed chart.
inch
inch
0.0021 in./rev.
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