The only thing the instructions say is after going through the film loading sequence, you turn the frame dial counter-clockwise until it is at zero, then start shooting. Of course, if you have loaded a roll that is shorter than 36, say a 24 shot roll, then since it counts down you would set it at 24. But are you having problems with play in the counter? Get a roll of old film, and practice with it many times over until you can tell where to set the start.
PF