4-Jaw Chuck - Grizzly G9972Z Owner's Manual

Installing Jaws into 3-Jaw chuck
1.
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2.
thoroughly clean debris and grime from the
jaws and chuck jaw guides, then apply a thin
film of lubricant to the mating surfaces.
3. examine the jaws—each is stamped with a
number 1–3.
4. insert and rotate the chuck key clockwise
until you see the beginning of the scroll gear
lead thread come into view through the jaw
guide, then back it off slightly until it disap-
pears (see figure 18).
figure 18. installing the first jaw in the 3-jaw
chuck.
5.
slide the #1 jaw into the jaw guide and hold
it firmly against the scroll gear threads, then
rotate the chuck clockwise a couple of turns
to send the lead thread through the jaw.
6. repeat Steps 4–5 for jaw #2 and #3 in
sequence.
— if installed correctly, the three jaws will con-
verge evenly at the center of the chuck.
— if the jaws do not come together evenly,
remove them, make sure the numbers of
the jaws and jaw guide match, then re-
install the jaws.
G9972Z 11" x 26" Lathe w/Gearbox
the 4-jaw chuck included with this lathe features
independently adjustable hardened steel jaws.
each jaw can be removed from the chuck body
and reversed for a wide range of work holding
configurations. install the 4-jaw chuck on the
spindle according to the instructions on page 18.
scroll-gear
Tools Needed
Lead thread
4-Jaw Chuck Key .............................................. 1
To mount a workpiece in the 4-jaw chuck:
1.
2.
3.

4-Jaw chuck

Large chucks are very heavy. Always get
assistance when removing or installing
large chucks to prevent personal injury or
damage to the chuck or lathe.
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place a piece of wood below the chuck to
protect the bedways.
Use the chuck key to open each jaw until the
workpiece can lie flat against the chuck face
or evenly on the jaw steps.
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