Adjustment
9.03.23
Thread check springs (GP-724)
Requirement
1. The movement of thread check springs
3
and
6
should be completed
when the needle points penetrate the fabric (spring stroke approx.
7
mm
).
2.
when the largest thread loop is formed while the thread is passed
around the hook, the thread check springs
3
and
6
should rise
slightly from supports
1
and
9
.
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