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2) Adjusting the remaining length of needle thread
Adjust the length of needle thread remaining at the needle by turning thread tension No. 1 nut ❷.
Turn thread tension No. 1 nut ❷ clockwise (in direction A), to shorten the thread length remaining on the
needle after thread trimming or counterclockwise (in direction B), to lengthen the thread length.
3) Length of needle thread remaining at the needle
The needle thread length C dimensions of the S type and H type is 35 to 45mm.
* So-called "bird's nest phenomenon" is reduced by shortening the length of needle thread remain-
ing at the needle. In this case, however, the needle thread is likely to slip off the needle eyelet. To
reduce slip-off of the needle thread, sewing speed at the beginning of sewing should be reduced.
Adjustment Procedure
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