Installing Tooling; Removing Tooling - Grizzly G4003G Owner's Manual

Installing Tooling

This tailstock uses a quill with an MT#3 taper that
has a lock slot in the back of the bore that accepts
tang arbors and drill bits (see the Figures below
for examples).
Solid
Open
Solid
End
End
End
Figure 35. Types of tapered arbors and tooling.
Tang
Figure 36. Example photo of inserting tool with
tang into tailstock.
However, other tooling without tangs, such as
the four remaining tools shown previously, can
still be used if the potential load will not exceed
the strength of the tapered fit. For example, this
includes smaller drill chucks, drill bits, and cen-
ters.
Note: If the tooling has an open hole in the end
but is too short to be exposed in the drift slot for
removal, then a screw can be threaded in 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.
-36-
Tang
Screw
End
To install tooling in tailstock:
1. With tailstock locked in place, unlock quill,
then use handwheel to extend it approxi-
mately 1".
2. Thoroughly clean and dry tapered mating
surfaces of quill and center, making sure that
no lint or oil remain on tapers.
Note: If tapered tool shaft has a tang, align
it with slot in back of quill before seating it.
3.
With a firm and quick motion, insert tool into
quill. Check to see if it is firmly seated by
attempting to twist it—a firmly seated tool will
not twist.
4.
Unlock tailstock and move it until tip of tool
is close to, but not touching workpiece, then
relock tailstock.
5.
Start spindle rotation, unlock quill lock lever,
then turn quill handwheel clockwise to feed
tool into workpiece.

Removing Tooling

1.
Use shop rag to hold tool.
2.
Rotate quill handwheel counterclockwise until
tool is forced out of quill.
— If tool does not come loose by retracting
quill, extend quill and use drift key in slot
shown in Figure below to remove tool.
Drift Key Slot
Figure 37. Drift key slot in the side of the quill.
Model G4003G (Mfd. Since 1/15)