-36-
For Machines Mfd. Since 12/21
South Bend Tools
Model SB1007
O P E R A T I O N
Note:
As long as dead center remains in
chuck, point of center will remain true to
spindle centerline. Point will have to be
refinished whenever center is removed and
then returned to chuck.
4.
Install a center in tailstock.
5.
Attach a lathe dog to test stock from Step 2,
then mount it between centers (see Figure
41 for an example setup).
Figure
Figure 41. Example of stock mounted between
. Example of stock mounted between
centers.
centers.
6.
Turn 0.010" off diameter along entire length
of round stock.
7.
Mount a test or dial indicator so that plunger
is on tailstock quill.
8.
Use calipers to measure both ends of
workpiece and adjust tailstock offset as
necessary (refer to Offsetting Tailstock on
Page 35 for detailed instructions).
Aligning Tailstock To Spindle
Centerline
This is an essential adjustment that should be
verified or performed each time the tailstock
is used to turn concentric workpieces between
centers or immediately after offsetting the
tailstock when turning a taper. If the tailstock is
not aligned with the spindle centerline when it is
supposed to be, turning results will be inaccurate
along the length of the workpiece.
Items Needed
Qty
Hex Wrench 4mm .................................................1
Precision Level ......................................................1
Round Stock 2" x 6" ...............................................2
Test or Dial Indicator w/Mount ............................1
To align tailstock offset to spindle centerline:
1.
Use a precision level to ensure bedway is
level from side to side and from front to back.
— If bedway is not level, correct this
condition before continuing with
this procedure (refer to Leveling &
Mounting on Page 22).
2.
Center drill both ends of one piece of round
stock, then set it aside for use in Step 5.
3.
Use other piece of round stock to make a
dead center, and turn it to a 60° point, as
illustrated in Figure 40.
Figure
Figure 40. Turning a dead center.
. Turning a dead center.
