Grizzly G0750GV Owner's Manual page 52

Inch Threading Configuration
A change gear corresponding to the "b" row on
the chart is installed in the lower "b" position so it
meshes with the 120T gear. A change gear cor-
responding to the "a" row is installed in the upper
"a" position and meshes with the 120T gear, as
shown below.
"a"
Position
120T Gear
"a" row
"b" row
"b"
Position
Figure 69. Inch feed chart change gears.
Metric Threading Configuration
A change gear corresponding to the "b" row on
the chart is installed in the lower "b" position so it
meshes with the inner 120T gear. A change gear
corresponding to the "a" row is installed in the "a"
position so it meshes with the outer 127T gear, as
shown below.
"a"
Position
120T Gear
"a" row
"b" row
Position
Figure 70. Metric feed chart change gears.
-50-
"b"
127T Gear
End-Gear Configuration Example
Follow the example below to better understand
how to configure the end gears for inch threading.
Tools Needed
Hex Wrench 5mm .............................................. 1
Hex Wrench 6mm .............................................. 1
Wrench 17mm.................................................... 1
To configure end gears for threading 18 TPI:
1. Locate 18 on inch thread chart, then locate
the 60 "a" position gear and 54 "b" position
gear (see Figure 71), which correspond to 18
TPI. Gather 60T and 54T gears.
60T & 54T
Gears
18 TPI
Figure 71. Locating change gears for 18 TPI.
2.
DISCONNECT MACHINE FROM POWER!
3.
Remove headstock end gear cover.
4.
Loosen arm support cap screw shown in
Figure 72.
"a" Position
Gear
120/127T
Gears
Arm Support
Hex Nut
Figure 72. Arm support and end gears.
Model G0750GV (Mfd. Since 03/18)
Qty
"b" Position
Gear
Arm
Support
Cap
Screw
Arm
Support