While you wait for answers, we may have found some information which could help you.
Click here for Stitch Machine AmHow can I mend my Frister & Rossmann sewing machine?
Frister & Rossmann cub 7?
The thread loops under the fa?
Parts spares?
Singer zigzag 457 Stylist not threading bobbin/making stitch?
Bernina Update 1630 work light not working?