Tailstock; Tailstock Quill Specs; Positioning Tailstock; Using Quill - Grizzly G0768Z Manual

Tailstock

The tailstock is typically used to support long
workpieces at the side opposite the spindle, using
a live or dead center. It can also hold a tapered
drill bit (or a drill chuck with a regular drill bit) for
boring holes. Unlike boring done with a drill press
where the workpiece is fixed and the drill bit
rotates, the drill bit in a tailstock remains station-
ary while the workpiece is rotated by the spindle.
The entire tailstock can be repositioned and
locked in place along the length of the bed. An
independently controlled offset adjustment allows
the upper part of the tailstock to move perpen-
dicular to the bedways so it can be aligned with
the spindle center (for concentric turning) or offset
from the spindle center (for tapered turning).
The tailstock quill also features independent
adjustment controls that allow it to be advanced
toward the spindle or locked firmly in position.
Quill Lock
Lever
Quill
Offset Adjustment
Screw (1 of 2)
Figure 34. Tailstock controls and features.
Model G0768/G0769 (Mfd. Since 8/15)
Tailstock Lock
Lever
Quill
Handwheel

Tailstock Quill Specs

Graduated Dial on Handwheel
Increments ................................................. 0.001"
One Full Revolution ..................................... 0.04"
Increments on Quill Scale
Inch ................................ 0"–2" in
Metric .................... 0–50mm in 1mm Increments

Positioning Tailstock

1.
Rotate tailstock lock lever clockwise (facing
machine) to unlock tailstock from bedways.
2.
Slide tailstock to desired position by pushing
it along the bedways.
3.
Rotate tailstock lock lever counterclockwise
to lock tailstock against bedways.

Using Quill

1.
Rotate quill lock lever counterclockwise to
loosen quill.
2.
Turn quill handwheel clockwise to move quill
toward spindle or counterclockwise to move it
away from spindle.
3.
Rotate quill lock lever clockwise to secure
quill.
⁄ " Increments
1
8
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