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?
Delta NM 902?
Singer 188K1 presser bar stuck?
Frister & Rossman Cub7 Sewing Machine?
How can I mend my Frister & Rossmann sewing machine?
Parts spares?
How do fill a bobber?
Stuck Feed dog?
Bernina Update 1630 work light not working?
Frister & Rossmann cub 7?