How do I fix the tension on my Singer Kenmore 158-130 model?
It keeps snapping my thread at the tension knob.

Judey Swanson, June 2006

I don't know that model but...usually the knob itself turns to tighten or loosen, also some will "pop out" by pressing it & so completely loosen --- if you can pull the thread through, then try rethreading the machine because I have found that it is not the tension but an inaccurate threading of the machine that breaks the thread -- good luck !

Lyn, April 2007