We may have found other answers which could help you.
Success
Message
Presser foot is loose?
Singer 188K1 presser bar stuck?
1965 Singer 275k sewing machine foot pedal?
Singer zigzag 457 Stylist not threading bobbin/making stitch?
Singer sewing machine 626 kno?
Bobbin won't wind?
Singer 507?
Engine revving up ?
Singer 201 went bang , smelt and now won’t work?
What size needles can I use for my Singer 39a3?
the thread is bunching on underside of fabric it looks like birdnest?
My CG 500/550 Singer Sewing Machine's bobbin isn't working?