Adjusting Needle Thread Tension - ELNA 6001 Instruction Book

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Adjusting the Needle Thread Tension
Choosing the Correct Tension - Straight Stitch
The ideal straight stitch will have threads locked be-
tween the two layers of fabric, as shown left (magni-
fied to show detail). Needle thread tension can range
from 3 – 5 and is normally set on 4 j.
If you look at the needle thread k (top thread) and
bobbin thread l (bottom thread), you will notice that
there are no gaps. Each stitch is smooth and even.
Occasionally the needle thread tension needs to be
adjusted. Examples:
stiff or heavy fabric
sewing more than two layers of fabric
type of stitch
thread
When adjusting needle thread tension, the higher
numbers tighten, the lower numbers loosen.
Tension is too tight
The bobbin thread shows through on the topside of
the fabric and it will feel bumpy.
Turn the dial to a lower number to loosen the needle
thread tension.
Tension is too loose
The needle thread shows through on the underside
of the fabric and it will feel bumpy.
Turn the dial to a higher number to tighten the
needle thread tension.
Adjusting Tension for Zigzag and Satin
Stitches
The upper thread tension should be slightly looser
when sewing a zigzag or a satin stitch. The upper
thread should appear slightly on the underside of the
fabric.
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