14" | O P E R A T I O N | For Machines Mfg. Since 5/11 |
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Setting Spindle Speed
Selecting one of the 16 spindle speeds available is a combination of configuring the
Spindle Speed
& Range Levers
Motor
Switch
Figure 67. Spindle speed controls.
The motor switch controls the speed of the spindle motor, either a low speed of 1725 RPM or a high speed of 3450 RPM.
The spindle speed and range levers control the gear configuration in the headstock to produce
Configuration Examples
Using the controls on the lathe, follow along with these two examples for setting the spindle speed to gain a better understanding of this task.
Setting Spindle Speed of 215 RPM
1.Make sure the spindle is completely stopped and the spindle lever is in the OFF (middle) position.
2.Turn the motor switch (see Figure 67) to the low (left) position.
Note: The green color of the motor switch low position corresponds to the column in the
3.Move the spindle range lever to the right so that the arrow on top of its hub points toward the
Note: If necessary, use the chuck key to rock the spindle
the selected spindle speed. The spindle range lever selects speeds in the left- or
If the spindle is rotating when attempting to change the spindle speed, the headstock gears will suffer damage! ALWAYS make sure the spindle is completely stopped BEFORE using the headstock control levers to make
C
B A D 
Spindle Speed
Lever Set To
“B” (215 RPM)
Spindle
Range Lever
Pointing To
The Right-
Hand Speed
Chart
changes.
Operating the lathe at spindle speeds higher than 350 RPM when the high (H) gearbox range is selected could result in gearbox damage. Always use spindle speeds of
350 RPM or lower when using the high (H) gearbox range.
Figure 68. Setting the spindle speed to 215 RPM.
4.Position the spindle speed lever so that the "B" is directly under the arrow on the headstock.
Note: You will hear a distinctive "click" when the spindle speed lever is in the correct position.
The lathe is now set for a spindle speed of 215 RPM.
