DURKOPP ADLER 577 Series, Руководство пользователя

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Threading the bobbin
–
Insert the full bobbin into the bobbin case top. When unwinding the
thread, the bobbin must turn counter clockwise.
–
Pass the hook thread through the slit 6 and under the spring 7 .
–
Depending on the buttonhole to be sewn, pass the hook thread
through the slit
9 for a raised buttonhole (more thread will be
advanced across the hook back) or through the slit 10 for a flat
buttonhole (less thread).
–
Cut then the thread, passed as described, by the knife 11 .
Adjusting the hook thread tension
–
Adjust the hook thread tension by turning the screw 12 so that,
when holding the thread at its end, the bobbin case descends by
its own weight.
Inserting the bobbin case top
–
Place the bobbin case top together with the bobbin onto the bobbin
case bottom and ensure that the bow
5 snaps (what you should
hear).
–
Close the hook space cover 4 .
5
4
11
6
12
7
9
10
1
9