Grizzly G0694 Adjusting Spindle Speeds, Finishing, Work, Cutting, To change speed ranges

Adjusting Spindle

Speeds

The Model G0694 has three speed ranges for maximum turning options. These ranges are selected by changing belt positions on the motor and spindle pulleys (Figure 21).

Refer to the chart in Figure 22 help choosing the correct spindle speed. Note that both the diameter of the workpiece and the type of cutting deter- mines the spindle speed.

Diameter	Roughing	General	Finishing
of Work-	RPM	Cutting	RPM
piece		RPM
Under 2"	1520	3000	3000
2–4"	760	1600	2480
4–6"	510	1080	1650
6–8"	380	810	1240

A= Low Range 100-1000 RPM

B= Mid Range 1000-2000 RPM

C= High Range 2000-3000 RPM

Spindle

C

B

A

Motor

8–10"	300	650	1000
10–12"	255	540	830
12–14"	220	460	710
14–16"	190	400	620

Figure 22. Model G0694 typical spindle speed

recommendations.

To change speed ranges:

Figure 21. Speed ranges for each belt position.

When turning a workpiece where a lot of mate- rial must be removed and a rough finish does not matter, low range, which has more torque, is best. When turning a workpiece where a clean finish is required, and only light cuts are made, high range is best. Mid range is a compromise between the two ranges. Use the speed dial to adjust the spindle speed within each range.

Always choose the correct spindle speed for your operation. Using the wrong speed may lead to the workpiece breaking loose or being thrown from the lathe at a high rate of speed, causing fatal or severe impact injuries.

Model G0694 (Mfg. Since 1/09)

1.DISCONNECT LATHE FROM POWER!

2.Remove the threaded knob and open the upper belt access panel, as shown in

Figure 23.

Threaded

Knob

Figure 23. Belt access panel removed.

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