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7) Adjusting the thread trimmer sensor
The safety switch is installed so that the sewing ma-
chine does not start unless the looper thread trimmer
device returns to its home position.
1. Loosen setscrews
❶
.
2. Adjust switch plate
❷
so that LED of thread
trimmer sensor
❸
lights up in the state that the
thread trimmer device is fully returned to its
home position.
3. Tighten setscrews
❶
.
(Caution) Perform the work with the needle bar at
the highest position when actuating the
thread trimmer mechanism by hand.
❷
❸
❶
