Grizzly G0554 - Manual (Page 24)

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G0554 Gear-Head Floor Lathe
Figure 19 . Tightening the cam-locks.
Figure 18. Measuring height of cam-lock studs.
To install the three-jaw scroll chuck:
1. UNPLUG THE LATHE!
2. Lay a chuck cradle or protective layer of ply-
wood over the bedways to protect the preci-
sion ground surfaces from damage and to
prevent fingers from being pinched.
3. If the three-jaw scroll chuck does not have
the cam-lock studs assembled, screw the
cam-lock studs into the chuck body.
4. Using your calipers, measure the height
of the cam-lock studs from the previously
installed chuck (see
Figure 18).
5. Adjust the cam-lock studs in the three-jaw
chuck to match the measurement from the
previous chuck.
Note: Trial-and-error adjustment will be
needed if you do not have a previous cam-
lock stud to reference.
6. Once the proper length is obtained, tighten
the cap screws to lock the cam-lock studs in
position.
7. Lift the chuck, and insert the studs onto the
spindle nose (see Figure 17).
8. Tighten each cam-lock clockwise until you
feel the cam-lock engage the cam-lock stud.
Continue to turn until you can't turn any fur-
ther. You will see the chuck body draw-up to
the spindle nose. Ideally the cam-lock mark
will fall between the two pointed arrows on
the spindle nose (see
Figure 19).
Reversing Jaws
The three-jaw scroll chucks on the Model G0554
are reversible to hold larger workpieces.
To reverse the jaws:
1. UNPLUG THE LATHE!
2. Unbolt, then flip the jaw as shown in Figures
20-23, then re-tighten.
Figure 20. Reversing jaw step 1.