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20
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Set the tacking tension 6 so that, during the sewing procedure, the
greatest possible quantity of needle thread from the yarn spool is
used without the needle thread above the pre-tension fluttering too
much or tearing.
–
Thread the needle thread as per Chapter 4.1 (needle thread
through the main tension).
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Call up the "One-time Sewing (1X)" menu and sew a buttonhole.
–
Set the main tension 5 so that, during sewing of the buttonhole
seams, a satisfactory seam construct is achieved (uniform
raised-form buttonhole seams).
If the seam quality worsens after a change of thread, a correction
should occur only by turning the main tension 5.
Checking
–
Thread needle thread and underthread of different colors.
–
Conduct a trial seam.
With two-color sewing the color of the needle thread should only be
visible in the tacking of the buttonhole from above.
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