Filter
Top Products
-56-
Model G0740 (Mfg. Since 11/12)
Alternate Configuration
The alternate end gear configuration is used when
cutting modular or diametral threads. The 57T
end gear is positioned on the outside so that it
meshes with the 44T transposing gear instead of
the 56T gear, as illustrated in Figure 77.
Figure 77. Alternate end gear configuration.
57T
44T
24T
Modular and Diametral
Pitch Turning
56T
Configuring End Gears
Tools Needed Qty
Hex Wrench 6mm .............................................. 1
Wrench 22mm ................................................... 1
To configure the end gears:
1. DISCONNECT LATHE FROM POWER!
2. Remove the headstock end gear cover.
3. Remove the cap screw, lock washer, and flat
washer from the bottom 57T end gear (see
Figure 78).
4. Loosen the pivot arm hex nut shown in
Figure 78, then swing the pivot arm to the
left so that 44T/56T gears are away from the
57T gear. Hand tighten the hex nut to keep
the arm in place.
5. Use a stiff brush and mineral spirits to clean
away the debris and grime from the gears
and shafts, then lubricate these devices as
instructed in the End Gears lubrication sub-
section on Page 69.
6. Making sure to keep the key seated in the
shaft, remove the spacer and the 57T gear,
then re-install them as follows:
— For the standard end gear configuration,
slide the 57T gear on first, then the spacer
on the outside.
— For the alternate end gear configuration,
slide the spacer on first, then the gear.
7. Re-install the cap screw, lock washer, and
flat washer you removed in Step 3 to secure
the spacer and 57T gear.
Note: DO NOT overtighten the cap screw—it
merely holds the gear in place. Overtightening
it will make it harder to remove later and may
restrict the rotation of the gears.
8. Slide the pivot arm back so that either the
44T or the 56T meshes with the 57T gear,
then retighten the pivot arm hex nut.
Note: Make sure to keep approximately
0.002" play between the gears.
9. Replace and secure the end gear cover
before re-connecting the lathe to power.
Figure 78. End gear components.
Cap Screw,
Washers & Spacer
Pivot
Hex Nut