Grizzly G9972Z, Руководство пользователя

Страница: 32 / 84

-30-
Model G9972Z (Mfd. Since 03/20)
Installing Tooling
This tailstock uses a quill with an MT#3 taper that
accepts a variety of tapered arbors and tooling,
including tang arbors and drill bits (see
Figures
27–28 for examples).
Figure 27. Types of tapered arbors and tooling.
Solid
End
Open
End
Solid
End
Screw
End
Tang
Figure 28. Example photos of inserting MT#3
tools with tangs into a typical tailstock.
Tang
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.
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.
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, position 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.
Tools Needed Qty
Hex Wrench 4mm .............................................. 1
Open-End Wrench 19mm .................................. 1
3. With a firm and quick motion, insert the tool
into the quill, as shown in
Figure 28 on on
this page. 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.