Smithy GN1300 - Manual (Page 81)

Step 3: If changing the gear set-up is necessary to achieve the desired thread
pitch, follow the procedure under the title “Changing Gears” in the next section.
Changing Gears
Step 1: The A gear is secured with a bolt and washer assembly and the
location is fixed. To remove the gear remove the bolt and washer.
Step 2:The B and C gears share the same shaft and are secured with a snap
ring. Remove the snap ring from the shaft to remove the gears.
Step 3: Place the proper gear in the A position for cutting the desired thread
pitch. Reinstall the washer and bolt.
Step 4:The shaft for the B/C gears mounts on a slotted plate to adjust for the
different diameters of the gears. There are two flats on the end of the shaft to
loosen and tighten the assembly to allow for adjustment. Adjust the B/C gear
shaft as needed to accommodate the B and C gears needed for cutting your
desired thread pitch.
Figure 10.3 Make certain that your gears are properly set-up
to obtain the desired thread pitch
A
B
C
Figure 10.4 Inch/metric Selector located inside the pulley box
Granite 1300 Series Operator’s Manual
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