11 - 38
Adjustment
Fig. 11 - 34
2
3
1
0.1 mm
4
11.06.06 Bobbin-thread retaining spring
Requirement
Retaining spring 1 must
1. not be deflected during the thread catcher movement,
2. reliably retain bobbin thread 4 after cutting, and
3. not hinder removal and replacment of the bobbin case.
● Set thread trimmer at its resting position.
● Position retaining spring 1 (screws 2) so that the retaining lips are as close as possible to
the inside wall and to the front edge of thread catcher 3.
● Bend retaining spring 1 to set its height so that there is a clearance of about 0.1 mm
between top side of retaining spring 1 and thread catcher 3.
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