Grizzly G4003 Controls, Spindle Speeds, Never change speeds while spindle or motor is in motion

Spindle Speeds

Never change speeds while spindle or motor is in motion.

The speed of the spindle is controlled by the positions of the speed control knobs. See Figure

7.By positioning the knobs using the chart in Figure 8, you can achieve all of these speed ranges: 70, 200, 220, 270, 360, 600, 800, 1000 and 1400 RPM.

Figure 7. Speed shifting levers.

Figure 8. Speed chart.

The chart above shows the various combinations of knob positions for achieving a desired speed.

Example:

To select a spindle speed of 600 RPM, move the left-hand selector knob until the indicator arrow on its hub is pointing to the “C”. Move the right- hand selector knob until its indicator arrow is pointed at the “3”.