Adjustment
13
.05.09
Bobbin-thread clamp spring
Requirements
The clamp spring
1
must
1. not be pressed back during the thread catcher motion,
2. reliably clamp the bobbin thread after trimming and
3. not hinder the removal and insertion of the bobbin case.
●
Bring the thread trimmer to resting position.
●
Move the clamp spring
1
(screws
2
) in such a way that the clamp lips are as close to the
inner wall and the front edge of the thread catcher
3
as possible.
●
By bending the clamp spring
1
, adjust its height so that it is approx.
0.1 mm
from the
bottom of the thread catcher
3
and the bobbin thread is held reliably.
Fig. 13 - 27
1
3
2
0,1 mm
13 - 31
Summary of Contents for 1421E1
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