Grizzly g0749, g0746 owner manual Dead Centers

8.Use calipers to measure both ends of the workpiece.

—if the test stock is thicker at the tailstock end, move the tailstock toward the front of

the lathe 1⁄2 the distance of the amount of taper, as shown in the figure below.

Move tailstock toward

front of lathe 1/2 the

amount of taper.

Looking down from above.

Figure 53. Adjust tailstock toward the operator.

—if the test stock is thinner at the tailstock end, move the tailstock toward the back of the lathe 1⁄2 the distance of the amount of taper, as shown in the figure below.

Looking down from above.

Move tailstock toward

back of lathe 1/2 the

amount of taper.

Figure 54. Adjust tailstock away from the

operator.

9.repeat Steps 6–8until the desired accuracy is achieved.

Model G0746/G0749 (Mfg. Since 3/13)

Centers

Figure 55 shows the MT#5 dead centers included with the lathe. In addition, an MT#7–MT#5 tapered spindle sleeve is included for mounting in the spindle.

Spindle

Sleeve

Dead

Centers

Figure 55. Adapter sleeve and dead centers.

Dead Centers

A dead center is a one-piece center that does not rotate with the workpiece and is used to support long, slender workpieces in the tailstock.

A carbide-tipped dead center (not included) can better withstand the effects of friction than a typi- cal dead center and is best used in the tailstock where the workpiece will rotate against it. The tip of a dead center must be generously lubricated during the operation to avoid premature wear and maximize smooth operation. Using low spindle speeds will also reduce the heat and wear from friction.

Use the dead center in the spindle for operations where the workpiece rotates with the center and does not generate friction.

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