Grizzly Comprehensive Guide to Tailstock Adjustments and Drilling Techniques for G9249

—If the stock is thinner at the tailstock end, move the tailstock away from the operator half the distance of the amount of taper (see Figure 39).

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Figure 39. Tailstock adjustment away from the

operator (viewed from above).

10.Refer to Offsetting Tailstock on Page 28 for making adjustments to the tailstock posi- tion. Turn another 0.010" off the diameter and check for a taper. Repeat this process as necessary until the desired amount of accu- racy is achieved.

Drilling with

Tailstock

The tailstock can be used to drill holes by mount- ing a drill bit in the tailstock, rotating the workpiece with the spindle, then using the tailstock quill feed handwheel to advance the drill bit into the workpiece.

To set up the tailstock for drilling:

1.Lock the tailstock in position, then unlock the quill.

2.Use the quill feed handwheel to extend the quill about one inch out of the tailstock.

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3.Insert the drill chuck arbor into the drill chuck (see Figure 40), then insert the assembly into the quill until the taper is firmly seated. The matching tapers hold the arbor.

Drill Chuck Arbor

Drill Chuck

Figure 40. Drill chuck and arbor.

Note: Alternately, MT#3 tapered drill bits can be used with the tailstock for drilling opera- tions (see Figure 41).

Figure 41. Inserting tapered drill bit into the

tailstock quill.

To remove a tapered drill arbor or drill bit:

1.Turn the quill feed handle counterclockwise until the tool is pushed out from the tailstock taper.

G9249  12" x 37" Belt Drive Gap Bed Lathe