First use
Adjusting the thread tension
If the thread breaks while sewing, it means the thread tension is too high. If small
loops form while sewing, it means the thread tension is too low. The thread tension
must be adjusted in both cases. The upper thread and lower thread tension must be
proportional to each other.
The tension must also be different for different fabrics. The required tension depends
on the fabric's strength and thickness as well as on how many layers of fabric are to be
sewn. A higher tension is required for the upper thread in the case of light fabrics, for
example. If the stitches are too loose, it means the upper thread tension is set too low.
We recommend making a test seam on a sample of your fabric before starting to sew
in order to check whether the thread tension is set correctly.
− Turn the tension regulator for the upper thread
the tension (see Fig. 1).
− Turn the tension regulator for the upper thread clockwise to increase the tension.
The bobbin thread tension cannot be adjusted.
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1
11
11
counterclockwise to reduce