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Adj
ust th e Needle Th read Tension
for Straig h t
Stitch
• Correct tension
_I_ 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
the stitches are evenly balanced.
When adjusting the needle thread tension, the higher the
number, the tighter the needle thread tension.
Results depend on:
- stiffness and thickness of the fabric
- number of fabric iayers
- type of stitch
®
®
• Tension is too tight
_I_ Needle thread (Top thread)
Bobbin thread (Bottom thread)
TO loosen
Right side (Top side) of fabric
Wrong side (Bottom side) of fabric
If the bobbin thread shows through on the right side (Top
side) of the fabric, and the stitch feels bumpy, turn the dial
to a lower tension setting number to loosen the needle
thread tension.
®
½
• Tension is too loose
Needle thread (Top thread)
Bobbin thread (Bottom thread)
® To tighten
Right side (Top side) of fabric
® Wrong side (Bottom side) of fabric
If the needle thread shows through on the wrong side
(Bottom side) of the fabric and the stitch feels bumpy, turn
the diat to a higher tension setting number to tighten the
needle thread tension.
/
D
®
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