I'm not much help, but I still can't help being interested and curious. I have adopted an approach that so far has worked where there is no manual. I put a spool of thread on the spool pin, aim for the top tension mechanism looking for guide hooks /eyes / grooves on the way, then for the take up lever, or the equivalent mechanism on the machine. Some of these machine have the entire upper arm with a lifting action. Then from the take up lever towards the needle, still looking for the usual hooks and guides, maybe a groove along the way. A tricky thing with very old machines and some industrials is some have a hole in the needle bar or similar internal part of the machine entering from the top and exiting fairly close to the needle bar. With a bit of investigation, observing moving parts, a bit trial and error you will figure the threading out. I hope the shuttle part is more straight forward.
Last edited by Mickey2; 11-15-2015 at 01:47 PM.