3.Clean away debris and oily substances from the mating surfaces of the jaws.

4.Flip each jaw 180°, then re-install the cap screws to secure top jaws, as shown in

Figure 30.

Figure 30. Reversing jaws.

Securely mount your workpiece and remove the chuck key! Thrown objects from a lathe can cause seri- ous injury or death to the operator and to bystanders many feet away.

Mounting Workpiece

 

Tools Needed

Qty

3-Jaw Chuck Key

1

Plywood 34" (Bedway)

1

To mount a workpiece onto the 3-jaw chuck:

1.DISCONNECT LATHE FROM POWER!

2.Place the piece of plywood on the bedway below the chuck to protect it.

Model G0554Z (Mfg 01/09+)

3.Use the chuck key to open the jaws so that the workpiece lays flat against the chuck face, jaw steps, or fits into the spindle hole. See Figure 31 for examples of workpiece holding options for the 3-jaw chuck.

Mounting on an Outside Diameter

Mounting in an Inside Diameter

Figure 31. Examples of workpiece mounted in

the 3-jaw chuck.

4.Use the chuck key to tighten the jaws until they make contact with the workpiece.

5.Turn the chuck by hand to make sure the workpiece has even contact with all three jaws and the workpiece is not off-center.

—If the workpiece is not evenly held by all three jaws or is off-center, loosen the jaws and repeat Steps 3–4.

—If the workpiece is seated correctly onto the chuck, fully tighten the jaws.

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Image 29
Grizzly G0554Z owner manual Mounting Workpiece, To mount a workpiece onto the 3-jaw chuck