have u cleaned it,tore it apart?I keep qtips(helps pick up dust from thread},flashlight tweezers.and magnafier close to my machine. I make a rule ,every weekend I clean my machines. I have 2 ,brother and singer.,
Now bobbin place stoped working at all :(. I got somebody in Queens. They could not fix it in theirs place, so sent it to Singer :(. Hope I'll get it back in working condition. Too much money to throw out this machine of 4 years old :(.
I have the Singer XL6000 - always have had tension problems and there doesn't seem to be a fix for mine - hope you have better luck with your machine