Originally Posted by
Tippysmom
My FW 221 sews like a champ, except the top thread keeps breaking. I've rethreaded it 20+ times, checked the bobbin, the tension, referred to the manual, but I am at a loss as to what the problem could be.
Any ideas??
Thanks,
Renate
Not something that will show up in manuals, but these ole gals can get rust or burrs on the bobbin case/base, or hook. Watch the thread as it follows around the bobbin when you turn it by hand. Use a flashlight, see anything causing it to hang up a bit as you rotate the balance wheel?