We may have found other answers which could help you.
Click here for Stop Thread Sewing MachineSew-tric ltd variable speed motor built 1982 6000rpm r007327?
Sewing machine issue?
Toyota SL3404D Overlocker leaving big loops?
How to switch on light of sewing machine?
Sewing machine starts on its own?
Frister & Rossmann cub 7?