Southbend SB1053 Controls Components, Spindle Speed Levers & Chart Master Power Switch

For Machines Mfg. Since 3/11 I N T R O D U C T I O N 16-Speed Gearhead Lathe

Controls &

Components

Refer to Figures 2–9and the following descriptions to become familiar with the features and basic controls of this lathe. This knowledge will be necessary to properly set up the lathe for the test run and spindle break-in.

To reduce the risk of serious injury when using this machine, read and understand this entire manual before beginning any lathe operations.

Two-Speed

Motor Switch

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Figure 3. Location of two-speed motor switch.

Spindle Speed Levers & Chart

Master Power Switch

The master power switch enables power to all lathe electrical controls.

Main Power

Switch

Figure 2. Location of the master power switch.

Two-Speed Motor Switch

One of three controls used to select spindle speed. Select LOW or HIGH motor speeds, which represent the top or bottom row of speed available on the spindle speed chart (see Figure 4).

Spindle							Spindle
Speed							Range
Lever							Lever
	C
	B
	A
Speed	D
	40	60	100	165	245	375	625 1000
Chart
	80	120	200	330	490	750	1250 2000
	A	B	C	D	A	B	C D

Figure 4. Spindle speed chart.

Spindle Speed Lever: One of three controls used to select spindle speed. Selects A, B, C, or D gear position on the spindle speed chart.

Spindle Range Lever: One of three controls used to select spindle speed. Selects low or high range of spindle speeds on the spindle speed chart (low range is on the left, high range is on the right).

Spindle Speed Chart: Displays the position of the two-speed motor switch, spindle speed lever, and spindle range lever required to achieve each of the 16 available spindle speeds.

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