Operating instructions

6.7 Setting the Underthread Tension

Caution Risk of Injury !

Turn the main switch off.

Set the underthread tension only with the sewing machine

turned off.

–

Take out the bobbin case with bobbin.

–

To lift the bobbin case reach under the nose 3.

–

Set tension spring 2 by turning the adjustment screw 1.

–

Insert the bobbin case with bobbin into the hook again.

Note:

The spring 4 is to be found under the bobbin in the hook.

When thread trimming the underthread automatically it prevents a "running-on" of the

bobbin.

ATTENTION !

The spring 4 must always be in the bobbin case in the

position shown in the sketch.

The spring 4 should not be lost during cleaning work.

1 2 3 4