Instruction book Freesia 415, 425
13
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2
3
Thread tension
Use the recommended setting given
on the Infodisplay (see pages 17,
19).
You can adjust the top thread
tension by turning the dial which is
numbered. The higher the number
the tighter the tension. Normal
thread tension is number 4.
When sewing buttonholes and
decorative stitches set thread tension
to number 3.
When topstitching with a coarse
thread in thick fabric, increase the
tension to 7-9.
Correct and incorrect thread tension
To understand the correct thread
tension, sew a few sample stitches at
different settings.
1.
Begin with a tension that is too
loose, i.e. set at "1". The lower
thread will lie straight and the
upper thread will be drawn down
on the underside.
2.
If you set the tension at the
highest number, the opposite will
occur, and the seam may pucker.
3.
The correct thread tension is
provided when the threads
interlock in the middle of both
layers of material or, in the case
of decorative stitches, on the
underside.
Make a few tests on a scrap piece of
the material you are going to sew
and check the tension.
