I have just obtained an 8 exposure 120 roll back for a Graflex RB Series D and would like an explanation of how to load the film. Specifically, when the film is inserted in the takeup reel and the case closed, where should the dial be set?

See my post under Accessories Help for 2002-01-14. The basic film loading process is the same for all the Graphic roll film holders that I'm familiar with.