SunStar KM-1070 SERIES User Manual page 39

8.11.3) Fixing Screw and Lower Thread Holder
When the fixed blade
moving blade, trimming is conducted safely at the
lowest possible pressure. At the time of trimming,
the lower thread holder
stably holding the lower thread. Adjustment can
be conducted as follows.
1) Loosen the tightening screw , and place the
hook base and the fixing blade base
Fasten the tightening screw
Loosen the fixing screw
between the slide plate guide
blade tip at some 28mm. After that, tightly
fasten the fixing screw .
2) Loosen the fixing screws
holder and properly adjust the lower thread
holder to make sure that it does not pull the
thread neither too strong nor too week. Then
tightly fasten the fixing screws .
8.11.4) Adjustment of Trimmer Cam and Lever
The location of the trimmer cam
the movement of the moving blade . Upon
trimming, the trimming lever roller
lowest curved line of the trimmer cam. However,
during sewing, the trimmer lever roller
trimmer cam do not contact each other. To make it
sure, adjustment can be conducted as follows.
1) Loosen three trimmer cam fixing screws
the trimmer lever tightening screw .
2) While the thread take-up lever is located at the
highest point, adjust the cam to place the center
of the opener shaft , the center of the trimmer
cam setting hole
lever roller at the same line A as in the figure.
3) Tightly fasten three fixing screws
trimmer lever tightening screw .
4) Loosen the trimmer clamp fixing screw
5) Adjust the trimmer cylinder shaft
moving blade contact the fixed blade
trimming when the trimmer cylinder stroke is
maximum.
6) Tightly fasten the fixing screw .
is half entered into the
contacts the moving blade
closely.
at the hole center.
and adjust the distance
and the fixing
for the lower thread
is determined by
contacts the
and the
and
and the center of the trimmer
and the
to make the
for
[Fig. 8-20]
[Fig. 8-21]
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