5-15
② When inserting the needle, make sure that the groove
of the needle is facing front. Shaft of the needle should
be inserted completely into the needle bar.
[CAUTION 1]
For special threads such as artificial silk, turn the
needle slightly to the right to prevent thread breaks
(see [Fig.5-22]).
[CAUTION 2]
If the needle is not inserted all the way to the top of
the needle bar hole, timing of the machine will go off,
causing broken needles and thread breaks.
[Fig.5-21]
[Fig.5-22]
Needle insert hole
Needle groove (front)
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