Never seen a manual just for the camera, but you can just play with it to figure out operation. If you have specific question just ask. I've used the camera a fair amount. Probably shot a few hundred rolls of film at this point, and some sheet film as well. Likely the inner front board is just glued, if it is like my #10.
I haven't taken the bellows off on my 8's or 6's, but figure they are similar.