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Adjusting tensioners (2) and (3)
CLASSIC machines with pneumatic control
–
Through pressing the key (5) the additional tension (2) will be
switched off. If the key (5) is pressed anew, the additional tension
will be activated again. The connectable additional tension (2)
helps in quick adjustment of the needle thread tension, for
example in order to get a tight stitch formation with regular seams
when sewing different materials.
–
Press the key (5)
–
Sew material with few layers and regulate the thread tension via
the main tensioner (3) until the correct interlacing of the thread is
reached (see illustration).
–
Sew material with more layers, switch on the additional tension (2)
via the key (5) and regulate it until the correct interlacing of the
thread is reached.
Correct interlacing of threads in the center
of the material
Needle-thread tension too weak
or
Hook-thread tension too strong
Needle-thread tension too strong
or
Hook-thread tension too weak
GB
15
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