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Adjust the Needle Thread Tension for a Straight
Stitch
. Correct tension
(_ 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 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 layers
- type of stitch
*Tension is too tight
(_ 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.
* Tension is too loose
O 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 dial to a higher tension setting number to tighten the
needle thread tension.
* Adjust bobbin tension
(_Adjusting screw
(_)lncrease tension
® Decrease tension
NOTE: 1
Small screwdriver is not furnished with model 15202, but
may be ordered. (page 4)
In some instances, you may need to adjust the bobbin
thread tension.
Turn the adjusting screw(_in the direction of ®when the
bobbin thread tension is too tight..
Turn the adjusting screw(_ in the direction of2_ when the
bobbin thread tension is too loose.
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