Rewind (or pull the film out) until the tip of the leader is at the
Film Loading Mark (red). Holding the film in this position, partially
close the Camera Back so the inside gray cover holds the film in place.
Check to be sure that the film perforations are engaged by the teeth of
the bottom white sprocket wheel (look through the square hole in the inside
cover). If they are not engaged, reopen the back and reposition the film.
4.
When everything is checked and in place, close the back completely by
snapping it shut.