Southbend SB1052F TURN-X owner manual Setting Spindle Speed, Configuration Examples, Changes

14" TURN-X®Toolroom Lathe O P E R A T I O N For Machines Mfg. Since 5/11

Setting Spindle Speed

Selecting one of the 16 spindle speeds available is a combination of configuring the two-speed motor switch, the spindle range lever, and the spindle speed lever shown in Figure 67.

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 right-hand speed chart with the green header that contains the speed of 215 RPM.

3.Move the spindle range lever to the right so that the arrow on top of its hub points toward the right-hand speed chart (see the illustrated in Figure 68).

Note: If necessary, use the chuck key to rock the spindle back-and-forth to help mesh the gears as you move the levers.

the selected spindle speed. The spindle range lever selects speeds in the left- or right-hand speed chart to be available for the spindle speed lever. The spindle speed lever selects one of the speeds available in the active chart and column.

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.

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