QltnDiva

I recently acquired a L. O. Dietritch/Vesta Saxonia 1920s hand crank sewing machine (pic bellow). Unfortunately it was missing the shuttle, and of course no manual, attachments or anything else. I've been able to find some info on line and just bought a shuttle that seems to be the right one. Having issues to stitch. Thread breaks after the second stitch.
I'm looking for a copy of the Vesta boat shuttle manual (see pic of cover only, found online) to see if I can figure out how to make it work. Although I love the looks of it but I'd really want to be able to use it too. Any help and advice will be highly appreciated. Thx.