While you wait for answers, we may have found some information which could help you.
Click here for Pedal Singer Model Foot
how to get the tension right on my machine?
the thread is bunching on underside of fabric it looks like birdnest?
What size needles can I use for my Singer 39a3?
Singer 507?
Need a service manual for a Singer Treadle Sewing Machine Model 66-1?
Presser foot is loose?
howtomendit.com for free repair help, information and advice.
