Originally Posted by
miriam
http://www.tandtrepair.com/15Class_S...anual_1591.pdf
Short of having that machine on a bench, I don't know what to say. That is a link to an adjuster's manual. It has drawings of how it is suppose to look. Maybe you can figure something out from it. There is a fellow who comes on board on occasion. His name is Rain. He has a blog that I subscribe to. He is very knowledgeable on these machines. Here is a link to his blog - maybe you can get in contact with him.
http://vssmb.blogspot.com/ I hope he will help you right on here. I have a 15 clone that occasionally gets itself hung up in that same area - I have to jar it and it is good to go awhile. I haven't explored it enough to fix it though - too much other stuff going on. Mine also needs a replacement tension.
WHEE I doubt if the stuff above would be of any help at all. I opened up the Cinderella I have and it is NOT a 15 clone on the inside. Only the bobbin, the tension and slide plates are from the clones. ALL of the hidden parts are different. Have you tried giving it a good oiling with Triflow? I would have to have it on the bench to know much.