Southbend SB Power Feed Controls, D. Quick-change Gearbox Feed Levers, O P E R A T I O N

	O P E R A T I O N
13" Heavy 13® Gearhead Lathe		For Machines Mfg. Since 5/11

ALWAYS make sure the spindle is completely stopped BEFORE using the headstock control levers to make changes. If the spindle is rotating when attempting to change the configuration of the headstock feed controls, the gears in the headstock and quick-change gearbox will become damaged!

Power Feed Controls

Use Figures 69–70and the following descriptions to become familiar with the locations and functions of the controls that you will use to set up the correct power feed for your operation.

Note: Before using power feed, you may have to re-configure the end gears, depending on how they are set up. Refer to End Gears on Page 54 for detailed instructions.

A

C

B

D

Figure 69. Power feed controls on the headstock.

A.Feed Range Lever: Selects the low or high feed rate range by re-aligning the headstock transfer gear. In the middle position, disables power feed.

B.Feed Direction Lever: When the lathe is stopped, selects the direction for power feed.

Note: When the lathe is running, use the quick- change feed direction knob on the apron.

C.Feed Rate Chart: Displays the settings for the headstock and quick-change gearbox controls for the selected feed rate. Refer to Setting Feed Rate subsection on the next page for detailed instructions.

D.Quick-change Gearbox Feed Levers:

Configure the quick-change gearbox gears for the feed rate selected.

—Left Lever Positions: A–C

—Middle Lever Positions: R–T

—Right Lever Positions: V–Z

—Bottom Lever Positions: 1–8

Even though there is a lock-out device in the apron to prevent the feed selection lever and the half nut lever from being engaged at the same time, this lock-out device could break if forced. Attempting to engage these levers at the same time could cause severe lathe damage and will void the warranty.

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