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Model G0765 (Mfd. Since 5/15)
To change jaw set:
1.
DISCONNECT MACHINE FROM POWER!
2.
Use appropriate device to protect ways
(refer
to Installation & Removal Device
subsec-
tion).
3.
Insert chuck key and turn it counterclockwise
to back jaws out and remove them individu-
ally in descending order (i.e., 3, 2, 1).
4.
Use mineral spirits to clean debris and grime
from jaws and chuck jaw guides.
5.
Apply thin coat of NLGI #2 grease to surfaces
of removed jaw set. Store i
n safe place free
from moisture and abrasives.
6.
Rotate chuck key clockwise until you see tip
of outer scroll-gear lead thread about to enter
a jaw guide (see below).
Lead Thread
1
Figure 25. Lead thread on scroll gear.
7. Insert jaw #1 into jaw guide and hold jaw
against scroll-gear.
8
. Rotate chuck key clockwise one turn to
engage tip of scroll-gear lead thread into jaw.
Pull jaw; it should be locked into jaw guide.
9
. Install remaining jaws in numerical order, in
same manner. The jaws should converge
evenly at center of chuck.
— If jaws do not converge evenly, remove
them. Re-install jaws sequentially 1–3,
and
make sure each one engages with scroll-
gear lead thread during its first rotation.