We may have found other answers which could help you.
Click here for Sewing Machine Stitches Thread
How do I fill a bobbin Frister & Rossman Fantasy 972?
Frister & Rossman cub 7 Back thread guide keeps coming loose?
How to fix stuck drop-feed lever on Cub 4?
Frister & Rossman Cub 7 spool holder?
Frister & Rossman Cub 3 won't sew ?
Frister & Rossman 45 Mk 11?