Recently, while focusing in close, the stuff inside the tube going from the rangefinder to the camera bed came out. It appears to be a bunch of ball bearings and spacers, but I don't know what order they go back into the camera in, or how to keep this from happening. Any help would be appreciated.

Using the search function at the top of the page with "ball and spacer" as Keywords and seach speed graphic help will result in several post about this subject.
Looking at the front of the camera, top left of tube is the tension spring,followed by cam,long pin, ball,spacer,ball,spacer-------ball, plunger that contacts bed, and retaining cap. Make sure retaining cap will stay on before inserting cam.
Charles