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B. Feed Rate Chart: Displays end gear settings
for selected feed rate (see Figure 88).
0.0037"
0.0068"
A
B
84
30 72
C
D
20
80
33 80
E
F
80
80
Figure 88. Feed chart.
C. Feed Direction Dial: Selects carriage travel
0.40
0.50 0.60 0.70 0.80 1.00
direction without changing direction of head-
A
B
55
60
70
stock rotation. The carriage moves left when
C D
80
30
70
33 53 30 60 40 40
feed direction dial is turned right, half nut
E F
80
80
lever is engaged, and spindle direction switch
1.25 1.50 1.75 2.00 2.50 3.00
is set to "F".
A
B
53
57
80
C D
71
63
7163
20
The carriage moves right when the feed
E F
60
50
direction dial is turned to the left. The carriage
will not move when the lever is in the center
position.
9 10 11 12 13 14 16 18
Carriage travel direction reverses when the
53
57
55
A
B
spindle direction switch is set to "R".
C D
80 80
72 80
72
E F
30
30
33 40
19 20 22 24 32 40 44
A
B
53
53
60
C
C D
80
63
80 60
7153 55
E F
50
50
55
Figure 89. Feed direction dial.
-56-
in/
40
A
C
30
B
E
D
F
mm
57
72
80
30
40
33
80
80
80
70
63
63
70
33 3060 40
71
40
71
80
84
60
50
n/1"
57 72
63
72
57
70 40
60
40
60
40
60
63
65
70
80 60
53 72
63
70
4030
55
33
55
30
80
80
80
80
D. Half Nut Lever: Engages/disengages half
nut for power feed operations.
Figure 90. Half nut lever.
To avoid potential carriage/chuck crash,
disengage half nut lever immediately after
completing power feed operations.
Setting Power Feed Rate
Follow the example below to better understand
how to set the lathe power feed.
Tools Needed:
Hex Wrenches 4, 5mm .................................1 Ea
Open-End Wrenches 13, 14mm ...................1 Ea
To set power feed rate to 0.0037 in/rev.:
1.
DISCONNECT MACHINE FROM POWER!
2.
Locate the 0.0037 in./rev. column heading on
the feed rate chart, as shown in Figure 91.
0.0037 in./rev.
0.0037"
0.0068"
A
B
84
30 72
C
D
20
80
33 80
E
F
80
80
Figure 91. Change gears for 0.0037 in./rev. on
feed chart.
0.40
0.50 0.60 0.70 0.80 1.00
A
B
55
60
Model G0768/G0769 (Mfd. Since 8/15)
C D
80
30
70
33 53 30 60 40 40
D
Change
in/
Gears
40
A
C
30
B
E
D
F
mm
70
57
72
80
30
40
33
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