Removing Center From Spindle; Mounting Center In Tailstock; Removing Center From Tailstock - Grizzly G4003G Owner's Manual

Removing Center from Spindle

To remove the sleeve and center from the spindle,
insert a piece of round bar stock (or similar)
through the outside end of the spindle. Have
another person hold onto the sleeve and center
with a gloved hand or shop rag, then tap the bar
stock to knock the sleeve loose.

Mounting Center in Tailstock

Either a carbide-tipped dead center or live center
can be used in the tailstock. Mounting instruc-
tions are the same for both. Figure 45 shows an
example of a dead center mounted in a tailstock.
Figure 45. Example photo of using a carbide-
tipped dead center installed in the tailstock.
To avoid premature wear of dead center
or damage to workpiece, use low spindle
speeds and keep tip of dead center mounted
in tailstock well lubricated.
To mount a center in the tailstock:
1.
DISCONNECT LATHE FROM POWER!
2.
Thoroughly clean and dry tapered mating
surfaces of tailstock quill bore and center,
making sure that no lint or oil remains on
tapers.
-40-
Carbide-Tipped
Dead Center
3. Use quill handwheel to feed quill out from
casting approximately 1".
Note: The maximum quill travel is 4", but
we do not recommend extending the quill
more than 2" or stability and accuracy will be
reduced.
4.
Insert center into tailstock quill.
5.
Seat center firmly into quill during workpiece
installation by rotating quill handwheel clock-
wise to apply pressure with center engaged
in center hole in workpiece.
Note: Only apply enough pressure with the
tailstock quill to securely mount the workpiece
between centers. Avoid overtightening the
center against the workpiece, or it may
become difficult to remove later, and it will
result in excessive friction and heat, which
may damage the workpiece and center.

Removing Center from Tailstock

To remove the center from the quill, hold onto it
with a gloved hand or shop rag, then rotate the
quill handwheel counterclockwise to draw the quill
back into the casting until the center releases.
If the center does not come loose by retracting
the quill, extend the quill to expose the slot shown
in Figure 46, then use a drift key to remove the
center.
Drift Key Slot
Figure 46. Drift key slot in the side of the quill.
Model G4003G (Mfd. Since 1/15)