While you wait for answers, we may have found some information which could help you.
Success
Message
Stuck Feed dog?
Parts spares?
Bernina Update 1630 work light not working?
How do fill a bobber?
Singer zigzag 457 Stylist not threading bobbin/making stitch?
Sewing machine issue?
The thread loops under the fa?
Sew-tric ltd variable speed motor built 1982 6000rpm r007327?
Sewing machine starts on its own?
How can I mend my Frister & Rossmann sewing machine?
Frister & Rossmann cub 7?
Toyota SL3404D Overlocker leaving big loops?