Southbend SB1001 owner manual Chuck Removal, Scroll Chuck Clamping, To remove the chuck

For Machines Mfg. Since 8/11 O P E R A T I O N Model SB1001 8K™ Lathe

Chuck Removal

To remove the chuck:

1.DISCONNECT LATHE FROM POWER!

2.Place a sturdy piece of plywood under the spindle to protect the bed ways during the removal process.

3.Loosen the camlocks by turning the key counterclockwise until each of the cam lines are aligned with its corresponding spindle mark (see Figure 21).

Cam line aligned with spindle mark

0

Figure 21. Camlock is fully loosened when the cam

line is aligned with the spindle mark.

Tip: Camlocks can become very tight. A cheater pipe may be used as a last resort to add leverage when loosening. After loosening, you may need to wiggle the chuck key in the camlock to fully disengage the stud.

4.Using a dead blow hammer or other soft mallet, lightly tap around the outer circumference of the chuck body to loosen it from the spindle.

5.Remove the chuck from the spindle, using a light rocking motion to carefully slide the studs out of the cam holes.

—If the chuck does not immediately come off, rotate it approximately 60° and tap it again. Make sure all the marks on the cams and spindle are in proper alignment for removal.

Scroll Chuck Clamping

This scroll-type chuck has an internal scroll-gear that moves all jaws in unison when adjusted with the chuck key. This chuck will hold cylindrical parts on-center with the axis of spindle rotation and can be rotated at high speeds if the workpiece is properly clamped and balanced.

Never mix jaw types or positions to accommodate an odd-shaped workpiece. The chuck will spin out of balance and

may throw the workpiece! Instead, use an independent jaw chuck or a faceplate.

Safer Inside	Insufficient
Jaw Use	Jaw Clamping
Bar Stock
	Unstable
	Workpiece
Safer Outside	Unsafe Jaw Position and
	Poor Scroll Gear Engagement
Jaw Use	Poor
Shallow	Grip
Bar Stock
	Unstable
	Workpiece
Safer Outside	Unsafe Inside
	Jaw Use
Jaw Use
Shallow
Bar Stock
Unsafe Jaw Position and
Poor Scroll Gear Engagement
Safer Inside	Unsafe Jaw Position
Jaw Use
Cylinder
Poor Scroll
Gear Engagement

Figure 22. Jaw selection and workpiece holding.

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