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Reversing Jaws
the included 3-jaw scroll chuck features revers-
ible hardened steel jaws (see figure 18) that
move in unison to converge evenly against con-
centric workpieces.
Low Side
figure 18. Chuck with reversible jaws.
When installing the jaws, it is important to make
sure they are installed correctly. incorrect installa-
tion will result in jaws that do not converge evenly
and are unable to securely clamp a workpiece.
all of the tall ends of the jaws—or all of the low
ends—should face each other when installed (see
figure 18). the jaws should be oriented so they
correctly hold the workpiece (refer to figure 22
on page 23).
Each end of a jaw is stamped with a number (1, 2,
or 3), as shown in figure 19.
figure 19. Numbers stamped into each end of
jaws.
-22-
Tall Sides
Facing Each Other
using the stamped numbers, the jaws are installed
in numerical order in the jaw guides (see figure
20), so they will converge.
2
Jaw Guide
1
Outer Ring
figure 20. Jaw installation sequence using
numbers stamped on tall end of jaw.
To reverse the jaws:
1.
disCoNNECt lathE FroM poWEr!
2.
use an appropriate device to protect the
ways during the installation process (refer
to Installation & Removal Device on page
20).
3.
insert chuck keys into holes in chuck and
outer ring (see figure 20). hold chuck key
stationary while turning outer ring counter-
clockwise, then back jaws out and remove
them.
4.
use mineral spirits to clean debris and grime
from jaws and chuck jaw guides.
Model G0745 (Mfg. Since 11/13)
3
Key Holes
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