Correct tension, Tension is too light, Tension is too loose – Sears 38512102 User Manual
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Adjyst the Needle Thread Tension for
Straight Stitch
® Correct tension
0 Needle thread (Top thread)
(D Bobbin thread (Bottom thread)
(D To loosen
© To tighten
The ideal straight stitch has threads locked between two
layers of fabric, as illustrated (magnified to show detaii).
If you look at the needle thread and bobbin thread 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
»Tension is too light
0 Needle thread (Top thread)
0 Bobbin thread (Bottom thread)
© To ioosen
© Right side (Top side) of fabric
© Wrong side (Bottom side) of fabric
The bobbin thread shows through on the right side of the
fabric and it feels bumpy Turn the dial to a lower tension
setting number to loosen the needle thread tension.
• Tension is too loose
0 Needle thread (Top thread)
© Bobbin thread (Bottom thread)
© To tighten
© Right side (Top side) of fabric
© Wrong side (Bottom side) of fabric
The needle thread shows through on the wrong side
of the fabric and it feels bumpy Turn the dial to a higher
tension setting number to tighten the needle thread tension.
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