61
(1) Position of movable trimming blade
A. Align the line
①
of the upper shaft pulley with the
carving
②
of the sewing machine body (The needle
bar will go up to the highest point).
B. Insert into the hole
④
of the movable trimming knife
③
with tweezers to bring down the knife
③
to the lowest point.
C. When the movable trimming knife
③
is at the lowest point, unfasten the screw
⑩
to set a clearance of 5.5~6.0mm
between the needle plate (stitch plate) and the blade tip
⑨
of the movable trimming knife
③
.
D. After adjustments, fix the screws
⑦
,
⑧
and
⑩
.
E. Move the movable trimming knife
③
up and down to see whether it crosses top cover thread.
9) ST-C device
[ Figure 105 ]
②
①
[ Figure 106 ]
③
⑨
Needle plate
5.5mm~
6mm
[ Figure 107 ]
⑥
⑦
⑩
④
⑤
Top
cover
thread
③
⑥
⑧
Before adjustments, always turn off the motor switch and check to make sure that the motor is in stop
mode.
Warning
Loosen the screws
⑦
and
⑧
to
prevent the movable trimming knife
③
from touching the presser foot,
the left needle and the spreader.
Caution
After adjustments, the movable trimming knife
③
should cross the top cover thread.
Caution