I'm new to this forum and I'm excited to learn more about the Singer 15-96 I just brought home. It is in a simple Singer Cabinet Table No 1. I've spent the evening reading and trying to absorb as much as I can. So many things to know - and so many things for me to do to her to spruce her up a bit. One thing I can't find anything on at the moment is how to get the treadle belt spinning correctly. On the right side of the machine there is a rectangular shaped piece with 2 holes that the belt passes through. This piece will not stay in place, level with the machine and cabinet top. There appears to be some sort of spring in the corner of the cabinet that should hold it in place but I can't figure out how to engage it. With this piece hanging loose the belt won't turn smoothly. Any ideas?