Model G0776 (Mfd. Since 7/14)
-53-
Inch Threading Configuration
The end gears for inch threading are set up the
same as for power feeding (see
Figure 73).
Metric Threading Configuration
Install either a 24T or 48T gear in the upper posi-
tion and mesh it with the 127T gear. Install the
appropriate gear in the "Z" position for the desired
thread pitch and mesh it with the 120T gear (see
Figure 74).
Figure 74. Metric feed chart change gears.
End Gear Configuration Example
Follow the example below to better understand
how to configure the end gears for inch threading.
Tools Needed
Qty
Hex Wrench 5mm .............................................. 1
Open-End Wrench 16mm .................................. 1
To configure end gears for threading 32 TPI:
1. Locate 32 TPI on inch thread chart, then
locate
24T upper position gear and 48T "Z"
position gear (see
Figure 75), which corre-
spond to 32 TPI. Gather
24T and 48T gears.
Figure 73. Inch feed chart change gears.
inch
INCH THREADS
Upper
Position
127T Gear
METRIC THREADS
INDICATOR TABLE
120T Gear
127T Gear
Upper
Position
Arm
Support
Figure 76. Arm support and end gears.
120/127T
Gears
"Z" Position
Gear
Arm Support
Hex Nut
Upper
Position
Gear
2. DISCONNECT LATHE FROM POWER!
3. Remove headstock end gear cover.
4. While holding 120T/127T gears, loosen arm
support hex nut (see
Figure 76) and slowly
let gears pivot down and away from upper
position gear.
Figure 75. Locating change gears for 32 TPI.
inch
INCH THREADS
32 TPI
24T Gear
48T "Z"
Gear
"Z" Position
Gear
"Z" Position
Gear