I don't know how to attach the link so hope this takes you there. tandtrepair.com/schematicspage.html has a lot of free info on the touch and sew machines. No charge, he just suggests donations if his site helps. In that schematic, you will see that the small plate goes on first with the cupped legs pointing up. Then turn the next piece with the cupped ends pointing down and carefully slip it over the lever by slightly turning it until it can be squared up and lined up with the screw holes. Next is the cover. It may take a few attempts because I kept knocking the smaller piece out of alignment.