Chuck & Faceplate Mounting; Installation & Removal Devices - Grizzly G9972Z Owner's Manual

Chuck & Faceplate
Mounting
This lathe is equipped with a threaded spindle
nose. With this type of spindle, a chuck or face-
plate is screwed directly onto the spindle nose.
Never use spindle speeds faster than the
chuck RPM rating or the safe limits of
your workpiece. Excessive spindle speeds
greatly increase the risk of the workpiece or
chuck being thrown from the machine with
deadly force!
This lathe ships with the 5" 3-jaw chuck installed.
This is a scroll-type chuck where all three jaws
move in unison when the chuck key is used.
The included 6 ⁄ " 4-jaw chuck features indepen-
1
2
dent jaws, which are used for square or unevenly-
shaped stock, and to mount work that needs to be
adjusted to near zero total indicated runout.
If neither chuck can hold your workpiece, the cast
iron 8" faceplate has slots for T-bolts that hold
standard or custom clamping hardware. With the
correct clamping hardware, a faceplate offers a
wide range of uses, including machining non-
concentric workpieces, straight turning between
centers, off-center turning, and boring.
Both the chucks and the faceplate mount to the
threaded spindle in the same manner.
Keep hair, clothing, and
jewelry away from mov-
ing parts at all times.
Entanglement can result
in death, amputation, or
severe crushing injuries!
Model G9972Z (Mfd. Since 03/20)
Installation &
Removal Devices
Because chucks are heavy and often awkward to
hold, some kind of support or protective device
should be used during installation or removal. The
weight and size of the chuck will determine the
appropriate device to use (refer to the following
figure for examples).
A dropped chuck can cause amputation,
serious crushing injuries, or property dam-
age. Always use a support or protective
device to reduce this risk when installing or
removing a chuck.
SMALL, LIGHTWEIGHT CHUCKS
Plywood Protection
Plate for Chucks
Installed by Hand
MEDIUM-SIZE, HEAVY CHUCKS
Plywood & 2x4
Chuck Cradle
Plywood Chuck Cradle
(Straight Cuts)
Figure 13. Examples of common devices used
LARGE, VERY HEAVY CHUCKS
during chuck installation and removal.
Pre-Threaded Hole
for Lifting Eye
Solid Block
Chuck Cradle
Way Slot
Jaw Slot
Plywood Chuck Cradle
(Curved Cuts)
Fabricated Steel
Lifting Hook
-23-