Singer T & S Model 620 thread jam issues
One of my local thrifts shops had a few sewing machines to choose from, untested and $9.99 each. I brought home a Singer Golden Touch & Sew model 620. The other serious contender was a Sears Kenmore in a case. The 620 is really clean and in good cosmetic condition. It also came with a set of cabinet hinges and the spool holder that my 648 is missing. Those parts alone would cost more online than I paid for the machine so I can't go wrong even if I never get the machine to work. Also, I already have a fairly complete set of cams and extra attachments the two Touch & Sews can share. My Singer 99 project has been waiting for a set of hinges so it works out very well for me.
I've started tinkering with the 620 and it appears to have a problem with jamming. It looks like the top thread is catching inside the lower rim of the bobbin instead of passing cleanly under the bobbin like it should.
It's probably a simple adjustment but I'm not sure where to start. Any ideas on how to fix it?
Thanks,
Rodney