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Primary Threading Configuration
This threading configuration is used for inch and
metric threading. Mesh the A and C, and D and F
9 10 11 12 13 14 16 18
gears, as shown in Figure 72. The A/B and C/D
change gears each share a keyed bushing. A
53
57
A
B
spacer (E) is installed on the lower shaft in front
of the F gear.
C D
80 80
E F
30
A Gear
19 20 22 24 32 40 44
B Gear
C Gear
A
B
53
53
D Gear
C D
80
63
80 60
E F
50
E (Spacer)
Figure 72. Primary threading configuration.
Secondary Threading Configuration
This threading configuration is used for a differ-
ent range of inch threads. Mesh the A, C, and E
gears, as shown in Figure 73. The A/B, and C/D
gears each share a keyed bushing. The B and D
gears (e.g. 20T or 30T) function as spacers since
they do not mesh with other gears. A spacer (F)
is installed on the lower shaft behind the E gear.
A Gear
9 10 11 12 13 14 16 18
B Gear
53
57
A
B
C Gear
C D
80 80
D Gear
E F
30
F (Spacer)
19 20 22 24 32 40 44
E Gear
A
B
53
53
Figure 73. Secondary threading configuration.
-52-
C D
80
63
80 60
55
57 72
72 80
72
70 40
30
33 40
60
53 72
71 53 55
50
55
80
F Gear
55
57 72
72 80
72
70 40
30
33 40
60
53 72
71 53 55
Configuring End Gears
Follow the example below to understand how
to change the gears from the factory set power
feed configuration to the primary inch threading
configuration. Concepts are similar to those for
63
72
setting up gears for power feeding.
Note: Many of the techniques and concepts
60
40
60
40
60
explained here also apply to setting up gears for
A
B
power feeding.
65
70
80 60
C
D
Tools Needed
E
F
Hex Wrench 5mm .........................................1 Ea
Open-End Wrenches 6, 14, 17mm ...............1 Ea
Punch ................................................................ 1
63
70
Hammer ............................................................. 1
A
B
4030
55
To configure end gears for 20 TPI:
33
55
30
C D
E F
1.
DISCONNECT MACHINE FROM POWER!
80
80
80
A
B
2.
Locate 20 TPI on thread chart shown in
C D
Figure 74.
E F
20 TPI
A
B
C D
E F
A
B
53
C D
80
E F
Gears and Positions Needed
Figure 74. Gear positions for 20 TPI on thread
3.
Gather 53T, 80T, 60T, and 50T gears. (The
80T gear may already be installed.)
63
72
4.
Remove end gear cover.
60
40
60
40
60
65
70
80 60
63
70
Model G0768/G0769 (Mfd. Since 6/14)
4030
55
33
55
30
in/
57
40
0.0037"
0.0068"
63
84
30 72
30
B
20
80
33 80
D
80
80
F
mm
0.40
0.50 0.60 0.70 0.80 1.00
55
60
70
57
72
80
30
70
33 53 30 60 40 40
30
80
80
80
80
80
1.25 1.50 1.75 2.00 2.50 3.00
53
57
80
63
63
71
63
7163
20
33 3060 40
71
60
50
80
84
60
n/1"
9 10 11 12 13 14 16 18
53
57
55
57 72
63
72
80 80
72 80
72
70 40
60
40
60
40
30
30
33 40
65
70
19 20 22 24 32 40 44
53
60
53 72
63
70
63
80 60
7153 55
4030
55
33
55
50
50
55
80
80
80
chart.
57
63
A
C
E
Qty
80
40
33
70
70
40
71
50
57
60
63
80 60
30
80
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