Southbend SB1224 instruction sheet Chuck Removal, Registration Marks, To remove the chuck

Mfg. Since 1/11 I N S T R U C T I O N S Model SB1224

7.Verify that the chuck fits the spindle properly by checking for any gaps between the mating surfaces.

—If there are no gaps, proceed to Step 9.

—If there is a gap, remove the chuck, re- clean the mating surfaces carefully, and re-install. If the problem persists, refer to Troubleshooting.

8.Verify that the chuck/spindle tapers are seating firmly together by removing the chuck, per the Chuck Removal instructions, and paying close attention to how easily the tapers release.

—If it was necessary to bump the chuck or use a mallet to release the tapers, then they are seating together properly.

—If the tapers released easily with little intervention, they are not seating together firmly as required. Remove the chuck, re- clean the mating surfaces carefully, and re-install. If the problem persists, refer to Troubleshooting.

Registration Marks

Lightly stamp registration marks across the mating seams of chuck components. These marks will help you re-install the chuck in the same position after removal, which ensures consistent chuck balance and turning results, and allows the same camlocks and studs to operate together for consistent locking and unlocking.

Camlock	Spindle & Chuck
	Registration Marks
Spindle	Chuck
	Halves
Marks	2-Piece
for Chuck
	Direct Mount
Reassembly
	Camlock Chuck

Figure 7. Registration mark locations.

Chuck Removal

To remove the chuck:

1.DISCONNECT LATHE FROM POWER!

2.Use an appropriate lifting, support, or protective device to protect the ways and support the chuck.

3.Loosen the camlocks by turning the key counterclockwise until the cam lines are aligned with the mark on the spindle nose.

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.

Cam line aligned with spindle mark

Figure 8. Camlock is fully loosened when the cam line

is aligned with the spindle mark.

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 bores.

—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.

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