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M1109 Combo Lathe/Mill
OPERATIONS
5. Place the live center in the tailstock.
6. Attach a lathe/mill dog to the bar stock and mount
it between centers
.
7. Turn approximately 0.010" off the diameter.
8. Measure the stock with a micrometer.
• If the stock diameter is thicker at the tailstock
end, the tailstock needs to be moved toward you
half the distance of the amount of the taper (see
Figure 28).
• If the stock diameter is thinner at the tailstock
end, the tailstock needs to be moved away from
you half the distance of the amount of the taper
(see Figure 29).
9. Mount a dial indicator so the dial plunger is on the
tailstock barrel before making adjustments to the
tailstock.
10. Turn another 0.010" off of the diameter and check
for a taper. Repeat this process as necessary until
the desired amount of accuracy is achieved.
Figure 28. Tailstock adjustment option #1.
Figure 29. Tailstock adjustment option #2.