Grizzly G9249 - Manual (Page 30)

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g9249 12" x 37" Belt drive gap Bed lathe
Offsetting Tailstock
the tailstock can be positioned offset from the
spindle, or moved side-to-side from the spindle
center line. this tailstock feature is most often
used when cutting a taper. When the tailstock is
positioned toward the operator from the center
line, the machined workpiece end nearest the
tailstock will be smaller in diameter than the end
near the spindle. Conversely, position the tailstock
away from the operator across the center line to
machine a workpiece taper near the spindle.
Note: When using tailstock offset to cut tapers,
you must use a center, faceplate, and lathe dog to
mount the workpiece onto the spindle.
Tools Needed Qty
standard screwdriver ........................................ 1
To set up the tailstock to cut a shallow taper:
1. lock the tailstock in place, then loosen the
lock screw at the rear of the tailstock shown
in
figure 34.
figure 34. tailstock offset controls.
lock
screw
offset scale
Adjustment
screw
(1 of 2)
Aligning Tailstock
the tailstock is aligned with the headstock at the
factory. We recommend that you take the time to
ensure that the tailstock is aligned to your own
desired tolerances.
To align the tailstock with the headstock:
1. using an machinist's precision level on the
bedways, make sure the lathe is level side-
to-side and front-to-back. if the lathe is not
level, correct this condition before proceeding
(refer to
Assembly and Placement on Page
14 for detailed instructions).
2. get two pieces of steel round stock, 2" in
diameter by 6" long.
2. Alternately loosen and tighten the adjustment
screws on either side of the tailstock until the
desired offset is indicated on the offset scale
(see
figures 34 and 35).
Turn
CCW
Turn
CW
Turn
CCW
figure 35. the effects of using the tailstock
adjustment screws.
3. re-tighten the lock screw to secure the off-
set.
Note: To return the tailstock to the center
line, repeat the process until the centered
position is indicated on the offset scale.