Baby Lock A-LINE Serie Mode D'emploi page 33

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Balancing Needle Thread Tension
z Correct tension:
The thread tension is adjusted depending on
the sewing materials, layers of fabric and
sewing method.
* The ideal straight stitch has threads locked
between two layers of fabric, as illustrated
(magnified to show detail).
* For an ideal zigzag stitch, the bobbin thread
does not show on the right side (top side) of
the fabric, and the needle thread shows
slightly on the wrong side (bottomside) of the
fabric.
q Needle thread (Top thread)
w Bobbin thread (Bottom thread)
e Right side (Top side) of fabric
r Wrong side (Bottom side) of fabric
t Thread tension dial
y Setting mark
x Needle thread tension is too tight:
The bobbin thread (bottom thread) will appear
on the right side (top side) of the fabric...........
Loosen the needle thread tension by moving
the dial to a lower number.
c Needle thread tension is too loose:
The needle thread (top thread) will appear on
the wrong side (bottom side) of the fabric.......
Tighten the needle thread tension by moving
the dial to a higher number.
Thread tension for zigzag sewing
To obtain better zigzag stitches, the upper
tension should be slightly weaker than in
the case of straight stitch sewing.
The upper thread should appear slightly
on the reverse side of the fabric.