Originally Posted by
ss1929
My Quantum Singer 9960 is hanging the top thread in the feed dogs have clean bobbin case. And the thread keeps jamming when sewing thru several pieces of fabric. what am I missing (lightweight cotton fabric)
Sorry I can't be of help to you other then to be sure the bobbin is the correct one for that machine. Have you checked youtube? I have found many problem solved there. I loaned my Singer Quantum to my niece about three years ago. She needed lots of mending done and honestly giving her a machine to use was better then doing the mending for her. LOL She did it all and I told her to keep the machine. She still uses it. My model of this machine has the foot petal that runs on air from the machine. I still don't know how that works but it does. I had to replace the foot petal because I got a pin hole in the air line and it wouldn't sew.