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BA_170-22D_A14_180704_en
4.3
Threading and thread course
A T T E N T I O N ! Danger of body injuries!
Switch off machine electrically and confirm that the
machine is really in standstill position by operating the
treadle for the motor control before threading.
Fig. 6 shows the correct threading by using the thread take-up.
Fig. 6
4.4
Depending on thread and fabric quality, nature and thickness the thread tension
is set by tension nut (1) (
Thread tension
Fig. 6).
4.5
The thread take-up lever ((2)
Thread take-up lever
Fig. 6) avoids thread twist and turning over of the
loop, thus enabling a secure taking up of the loop by looper and needle. There
is a uniform stitch formation and the hem edge is free of pucker.
The function of the thread take-up lever is influenced by the thread course
(choice of the eyelet).
Summary of Contents for 170-22D
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