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Adjust the Needle Thread Tension for
Straight
Stitch
= Correct
tension
%3-') Needle thread (Top thread)
(_ Bobbin thread (Bottom thread)
(_) To loosen
(&) To tighten
The ideal straight
stitch
has threads
locked
between
two layers of fabric,
as illustrated
(magnified
to show
detail).
If you look at the top and bottom
of a seam,
notice
that there are no gaps.
Each stitch is smooth
and
even.
When adjusting
needle thread tension,
the higher the
number, the tighter
the top thread
tension_
Results
depend
on;
stiffness
and thickness
of the fabric
number
of fabric layers
type of stitch
o Tension
is too tight
(_ Needle thread _op thread)
(_ Bobbin thread (Bottom thread)
To loosen
(&) Right side
(_) Wrong side
The bobbin
thread
shows
through
on the right side
of the fabric and it feels bumpy.
Turn the dial up-
ward to loosen the top thread
tension.
®
o Tension
is too loose
(_) Needle thread (Top thread)
(_) Bobbin thread (Bottom thread)
(_) To tighten
The needle thread shows
through
on the wrong
side
of the fabric and it feels bumpy.
Turn the dial down-
ward to tighten
the top thread
tension°
k._i
®-
..................... J
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