Southbend SB1053 owner manual Lever at, Spindle speed set to 40 RPM

For Machines Mfg. Since 3/11 P R E P A R A T I O N 16-Speed Gearhead Lathe

8.Set the spindle speed to 40 RPM. You may have to manually rock the chuck back-and- forth to make the gears mesh.

a.Turn the two-speed motor switch to the LOW position.

b.Move the spindle range lever so that the indicator points to the upper line on the right—this is the low range for this motor speed (see Figure 31).

c.Rotate the spindle speed lever so that the indicator points to the "A".

Spindle
Speed Lever		Spindle
		Range
			Lever
Spindle Speed					Spindle Range
Lever at “A”					Lever at the
(40 RPM)	C				Low Range
	B
	A
	D
40	60	100	165	245	375	625 1000
80	120	200	330	490	750	1250 2000
A	B	C	D	A	B	C	D

Figure 31. Spindle speed set to 40 RPM.

DO NOT use the jog button to help mesh the gears when changing spindle speeds or range. This could damage the gears and connected components.

9.To allow the carriage to move freely when the handwheel is rotated, disengage the half nut lever, put the feed control lever in disengaged position, and make sure the carriage lock is loose (see Figure 32).

Half nut Lever	Lock Bolt
Carriage
Handwheel
	Feed Control Lever
Cross Slide	Disengaged
Disengaged
Carriage	Halfnut
	Lever
Feed Control
Lever	Engaged

Figure 32. Carriage controls set for moving the

carriage.

10.Move the spindle ON/OFF lever to the OFF (middle) position, as shown in Figure 33.

Spindle

ON/OFF

Lever

Figure 33. Spindle ON/OFF lever in the OFF (middle)

position.

11.Press the STOP button on the control panel (see Figure 29 on Page 28) to ensure that the lathe does not unexpectedly start when connected to power during the next step.

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