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4.
Move top V-belt to A position (see Figure 58)
to select low speed range (50–1000 RPM).
Top
V-Belt
Figure 58. V-belt positioned in low speed range.
5.
Re-tension V-belt (refer to "Tensioning
V-Belts" on Page 81).
6.
Re-install end cover.
7.
Reset Emergency Stop button.
8.
Rotate spindle direction switch to "F" or "R",
and press ON button.
9.
Rotate spindle speed dial clockwise until
spindle speed display reads 100 RPM.
-48-
Low
High
A
B
M
Understanding Gear
Charts
This subsection explains how to understand the
feed and thread charts on the headstock. If you do
not understand lathe gear charts, or need a quick
refresher, read this before configuring the end
gears for power feeding or threading operations.
Feed & Thread Charts Label
The feed and thread charts label (see Figure 59)
provides information for setting up end gears for
threading or non-threading operations. The top
displays a feed chart, the bottom displays metric
and inch thread charts.
Feed & Thread
Charts Label
Feed Chart
Thread
Charts
Figure 59. Feed and thread charts label.
Feed Chart—Displays headstock end gear posi-
tions for different speeds of automatic feed (power
feed) used with turning operations (see Figure
60).
0.0037"
0.0068"
A
B
84
30 72
C
D
20
80
33 80
E
F
80
80
Figure 60. Feed chart.
0.40
0.50 0.60 0.70 0.80 1.00
A
B
55
60
70
C D
Model G0768/G0769 (Mfd. Since 8/15)
80
30
70
33 53 30 60 40 40
E F
80
80
in/
40
A
C
30
B
E
D
F
mm
57
72
80
30
40
33
80
80
80
70
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