DURKOPP ADLER 540-100-1, Руководство полное

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Threading the bobbin
–
Place the full bobbin in the bobbin housing top, whereby the bobbin
has to turn in anti-clockwise direction when the hook threader is
pulled.
–
Pass the hook thread through the slit 6 and under the spring.
–
Dependent on chosen buttonhole the hook thread has to go
through slit 9 for raised-form buttonholes and slit 10 for flat-form
buttonholes.
Setting the hook thread tension
–
Set the hook thread tension by turning screw 12 so that the bobbin
housing slowly sinks with its own weight when the hook thread is
held tight.
–
Flat-form buttonholes will require a higher tension.
Fitting of bobbin housing
–
Put the bobbin housing top along with the bobbin on the bobbin
housing bottom, make sure that the clip 5 audibly snaps into place.
–
Close bobbin case lid.
9
1
5