Adjusting the Upper Thread Tension

The upper thread tension must be adjusted depending on the sewing materials, the fabric layers and the sewing process using the Upper thread tension dial.

1

Upper thread

2

Bobbin thread

3

Right side (top side) of fabric

4

Wrong side (bottom side) of fabric

The base value for the upper thread tension is 4.

In perfect straight stitching, the bobbin thread is not visible on the right side of the fabric.

  1. To increase the upper thread tension, set the Upper thread tension dial to a higher value.
  2. To decrease the upper thread tension, set the Upper thread tension dial to a lower value.
  3. If the bobbin thread is visible on the right side of the fabric, set the upper thread tension to a lower value.
  5. If the upper thread is visible on the wrong side of the fabric, set the upper thread tension to a higher value.