-20-
G4003G Gunsmith's Lathe
To remove a chuck:
1. DISCONNECT LATHE FROM POWER!
2. Place a piece of plywood across the lathe
ways and position it just under the chuck.
The board should be at least 8" wide and 10"
long.
The Model G4003G is shipped with the 3-jaw
chuck installed. This is a scroll-type chuck, mean
-
ing that all three jaws move in unison when
adjusted.
The 4-jaw chuck, on the other hand, features
independent jaws. This chuck is used for square
or unevenly-shaped stock.
If either chuck cannot hold your workpiece, the
cast-iron faceplate has slots for T-bolts that hold
standard or custom clamping hardware. With the
correct clamping hardware, this faceplate will hold
non-cylindrical parts such as castings.
The chucks and faceplate have a D-1 Camlock
mount. Please note that there are lines stamped
into the cam and on the chuck body. A chuck key
is used to turn the locking cams (
Figure 19).
To protect the ways when removing or
installing a chuck
, ALWAYS place a piece
of plywood over the ways. Use extreme
care when removing or installing a chuck
so that your hands do not become trapped
between the chuck and the plywood.
Mounting Chuck and
Faceplate
Figure 19. Key positioned to remove chuck.
Always remove the chuck key
after using it! Objects thrown
from a lathe can cause serious
injury or death to the operator
or bystanders.
3. Turn a cam with the chuck key until the cam
line aligns with the spindle line mark shown in
Figure 20.
The chuck is heavy and can be awkward
to handle. Be aware that when removing
or installing a chuck, your fingers can be
pinched if you allow the chuck to drop.
Figure 20. Cam lines aligned to spindle line.
V's
Spindle Line
Cam Line
