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Model G0746/G0749 (Mfg. Since 3/13)
-41-
To install tooling in the tailstock:
1.
With the tailstock locked in place, unlock the
quill, then use the handwheel to extend it
approximately 1".
2. Thoroughly clean and dry the tapered mating
surfaces of the quill and the center, making
sure that no lint or oil remains on the tapers.
3.
With a firm and quick motion, insert the tool
into the quill. Check to see if it is firmly seated
by attempting to twist it—a firmly seated tool
will not twist.
4.
Unlock the tailstock and move it until the tip
of the tool is close to, but not touching, the
workpiece, then re-lock the tailstock.
5.
Start spindle rotation, unlock the quill lock
lever, then turn the quill handwheel clockwise
to feed the tool into the workpiece.
Removing Tooling
1. Use a shop rag to hold the tool.
2.
Rotate the quill handwheel counterclockwise
until the tool is forced out of the quill.
Offsetting Tailstock
The tailstock can be offset from the spindle cen-
terline for turning tapers. Move the tailstock top
casting toward the front of the lathe to machine a
taper at the tailstock end. Conversely, move the
tailstock top casting toward the back of the lathe
to machine a taper at the spindle end
.
Note: The marks on the offset indicator are arbi-
trary. For a precise offset, use a dial indicator to
check quill movement while adjusting the screws.
Note: The marks on the offset indicator (see
Figure 49) are arbitrary. For a precise offset, use
a dial indicator to check quill movement while
adjusting the screws.
Note: If the tooling has an open hole in the end,
then a screw can be threaded into the end of the
tool to provide a solid surface for the quill pin to
push against when the quill is retracted for tool
removal. Otherwise, removal of such tooling may
be difficult.
Turn
CCW
Turn
CCW
Turn
CW
Turn
CW
Figure 50. Example of set screw adjustment in
relation to tailstock movement.
3. Re-tighten the tailstock lock lever to secure
the offset.
Tools Needed Qty
Hex Wrench 6mm .............................................. 1
To offset the tailstock:
1. Loosen the tailstock lock lever to release the
clamping pressure between the top and bot-
tom castings.
2. Rotate the adjustment set screws in opposite
directions for the desired offset (see the illus-
tration in Figure 50).
Figure 49. Left offset adjustment.
Offset
Indicator
Adjustment
Set Screw (1 of 2)