Threading - Grizzly G0750GV Owner's Manual

5. While holding 120T/127T gears, loosen arm
support hex nut and slowly let gears pivot
down and away from upper "a" position gear,
as illustrated below.
"a"
Position Gear
127T Gear
120T Gear
Arm-Support
Hex Nut
Figure 73. End gear placement.
6. Loosen 120T/127T gear support hex nut and
slide middle gear away from lower "b" posi-
tion gear.
7.
Remove cap screw and flat washer from
upper "a" position and "b" position gears,
then slide gears off shafts.
8. Slide 60T gear onto "a" position shaft and
54T gear onto 'b" position shaft, making sure
to align keys and keyways.
Note: Position the flat, non-stepped face of
the gears away from the headstock so they
will mesh with the 120T gear in Step 11.
9. Secure 60T and 54T gears with flat washers
and cap screws removed earlier.
Model G0750GV (Mfd. Since 03/18)
10. Slide 120T gear against lower 54T gear (see
Gear-Support
Hex Nut
127T Gear
"b"
Position Gear
11. Rotate 120T gear up against 60T gear until
12. Tighten arm support hex nut.
13. Secure arm support cap screw (see
14. Re-install end gear cover.
The following subsections will describe how to
use the threading controls and charts to set up the
lathe for a threading operation. If you are unfamil-
iar with the process of cutting threads on a lathe,
we strongly recommend that you read books,
review industry trade magazines, or get formal
training before attempting any threading projects.
Headstock Threading Controls
The threading charts on the headstock face dis-
play the settings for inch and metric threading.
Using the controls on the lathe, follow the exam-
ple below to understand how to set up the lathe
for the desired threading operation.
To set dials for 18 TPI:
1.
Figure 74) until they mesh with 0.002" to
0.004" backlash, then tighten gear support
hex nut.
60T Gear
120T Gear
Arm-Support
Hex Nut
Figure 74. 60T & 54T gears installed.
they mesh with 0.002" to 0.004" backlash.
Figure 72).

Threading

DISCONNECT MACHINE FROM POWER!
Gear-Support
Hex Nut
54T Gear
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