7. ADJUSTMENT
7-7. Adjusting the position
of
the movable knife
1.
Remove the top cover and tilt back the machine head.
2. Tum the machine
pulley by hand so that the index
mark ( 1) is near facing straight upward.
4723Q
4672Q
4671Q
3. Loosen the bolt (2).
4.
Use the spanner 10 to turn the nut (3) counterclockwise until
it
stops.
5.
In
this condition, move thread trimmer rod H (5) forward
or
back to adjust so that the distance between the ridge line
on
the
right side
of
the needle plate and the ridge line on the movable knife (4) is 9 mm.
6. Tighten the
bolt (2), and then check the above position once more.
4724Q
4687Q
7.
Loosen the nut (6), and then tum the set screw (8) to adjust so that the outside
of
the hole in the movable knife (4) is
aligned with the ridge line
on
the shuttle race thread guide (7).
8.
Tighten the nut (6).
9.
Turn the pulley by hand to set the needle bar to its lowest point.
10. Check that the collar (9) is not touching the inside of the thread trimmer cam (10). Furthermore, push the driving lever(11)
by hand toward the thread trimmer cam (10) so that the collar (9) goes into the groove
of
the cam, and then release your
hand and check that the driving
lever (11) returns smoothly to its original position.
68
KE-4300,
BE-4380
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