Sears 1249 Sewing Machine User Manual


 
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Probably the most important control on your machine is this one that regulates
your top thread tension. It consists of discs between which the thread passes..
The pressure on these discs is regulated by turning the dial. The higher the num-
ber, the tighter the tenston°
There are many reasons for having to reset your tension_ The best tension for
one fabric may not be correct for another.. The required tension depends upon
the stiffness of the fabric, thickness of the fabric, numbers of layers of fabric be-
ing sewn, as well as the type of stitch you are making.
It is best to test the stitching on a scrap of the fabric you are using before start-
ing to make a garment
(_ Upper thread too tight
Decrease Tension
Upper thread too loose
Increase Tension