"have loved this machine and I do everything with it..don't want to break into a new one..."creature of habit I am"..but the sliding door which hides the bobbin will no longer stay in while I sew..slips out..any ideas?"
I posted her question to the Vintage Sewing Machines group on Facebook. Cindy Huffman provided this information and photos:
"Do you see that little black clip? That acts like a spring. She has to slide the plate from the needle side back onto that clip.