The post that's pinned right at the top of the board, the videos by Muv and Fav - the 2-parter on how to oil a vintage machine is really useful! It's a good tutorial on how to disassemble the small metal bits all around the machine. I had no idea how the bobbin winder or shuttle worked, as I've never had one of these long shuttle machines before. And lots of useful tips, like the advice about having tweezers on hand. I bought a pair from Lee Valley Tools just because she advised it, and they were a lifesaver! Better than normal eyebrow tweezers, I think they were for bonsai or something - anyway, they're long and thin, and can pull fuzz out of hard-to-reach corners.