Offsetting Tailstock; Aligning Tailstock - Grizzly G9972Z Owner's Manual

Offsetting Tailstock

the tailstock can be offset slightly to cut shallow
tapers. When the tailstock is positioned toward
the operator and away from the spindle center
line, the machined workpiece end will be smaller
in diameter at the tailstock end. Conversely, if the
tailstock is positioned away from the operator, the
taper will be at the spindle end.
alternately loosen and tighten the two tailstock
adjustment set screws until the desired offset is
indicated on the offset scale (see figure 23). to
return the tailstock back to the original position,
repeat the process until the centered position is
indicated on the scale, then perform the Aligning
Tailstock instructions.
adjustment set
screw (1 of 2)
figure 23. tailstock offset adjustments.

Aligning Tailstock

the tailstock alignment with the headstock was
set at the factory. however, we recommend that
you take the time to ensure that the tailstock is
aligned to your own desired tolerances.
To align the tailstock:
1. Use a machinist's precision level on the
bedways to ensure the lathe is level side-
to-side and front-to-back. if the lathe is not
level, correct this condition before proceeding
(refer to Moving and placement on page 12
for detailed instructions).
-24-
2.
3.
offset scale
Center drill a 6" long piece of round bar stock
on both ends. set it aside for use in Step 5.
Note: If the tailstock is slightly out of align-
ment by a few thousands of an inch, the
center drill will find the center point during the
drilling process. If the tailstock appears gross-
ly out of alignment, move the tailstock until it
appears to be centered (refer to the previous
subsection for detailed instructions).
Make a dead center by turning a shoulder on
a similar piece of round bar stock, then flip
the piece over in the chuck and turn a 60°
point (see figure 24).
Note: As long as the fabricated dead center
remains in the chuck, the point of this center
will remain true to the spindle axis or center
line. Keep in mind that the point will have to
be re-finished whenever it is removed and
re-installed in the chuck.
figure 24. Fabricated dead center.
G9972Z 11" x 26" Lathe w/Gearbox