−
18
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Adjustment Procedures
Results of Improper Adjustment
①
Loosen setscrew
8
and move the hook to adjust so that the
blade point of the hook is aligned with the center of the needle.
②
Turn the handwheel and loosen setscrew
8
to adjust so that
the clearance of 0.03 to 0.1 mm is provided between the needle
and blade point
9
of the hook when the blade point of the
hook is aligned with the center of the needle.
Caution : Turn the needle guard section of the inner hook to
the lower side so that the inner hook does not come
in contact with the needle.
Turn the handwheel by hand in the direction of normal rotation.
When needle bar
5
has gone up, adjust so that lower marker line
6
engraved on the needle bar aligns with the bottom end of the
needle bar bushing
7
, lower.
①
Fit the projection at the top end of inner hook stopper
1
to the
groove on the inner hook, and install setscrews
2
.
②
There is a slight play between inner hook stopper
1
and
setscrews
2
in the direction of arrow mark A (lateral direction).
Making the projection of inner hook stopper
1
come in contact
with the groove on the throat plate, fix the inner hook stopper
with setscrews
2
so that the setscrews are positioned
approximately in the center of the play.
Summary of Contents for LK-1941
Page 2: ......
