We may have found other answers which could help you.
Success
Message
Engine revving up ?
Singer zigzag 457 Stylist not threading bobbin/making stitch?
Singer 507?
My CG 500/550 Singer Sewing Machine's bobbin isn't working?
What size needles can I use for my Singer 39a3?
how to get the tension right on my machine?
Bobbin won't wind?
1965 Singer 275k sewing machine foot pedal?
Presser foot is loose?
the thread is bunching on underside of fabric it looks like birdnest?
Singer 201 went bang , smelt and now won’t work?
Need a service manual for a Singer Treadle Sewing Machine Model 66-1?