While you wait for answers, we may have found some information which could help you.
Success
Message
Toyota SL3404D Overlocker leaving big loops?
The thread loops under the fa?
Sewing machine starts on its own?
Stuck Feed dog?
Singer 188K1 presser bar stuck?
Frister & Rossmann cub 7?
Frister & Rossman Cub7 Sewing Machine?
Bernina Update 1630 work light not working?
Parts spares?
How can I mend my Frister & Rossmann sewing machine?
Singer sewing machine 626 kno?
Delta NM 902?