Balancing Needle Thread Tension; Adjusting Bobbin Thread Tension - Alfa 2622 Bedienungsanleitung

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Balancing Needle Thread Tension

Correct tension
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The thread tension is adjusted depending on the
sewing materials, layers of fabric and sewing method.
* The ideal straight stitch has threads looked between two
layers of fabric, as illustrated (magnifies 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.
Needle thread (Top thread)
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2 Bobbin thread (Bottom thread)
3 Right side (Top side) of fabric
4 Wrong side (Bottom side) of fabric
5 Thread tension dial
Setting mark
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Needle thread tension is too tight
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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.
Needle thread tension is too loose
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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.

Adjusting Bobbin Thread Tension

For general sewing, the bobbin thread tension does not need
to adjust. However, you can adjust the bobbin thread tension
for a specific sewing need.
Turn the adjusting screw to the right to tighten or, to the left to
loosen the tension.
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