Assembly diagram for powerhead on Eureka 169B (by 2 users)

Eureka 169B -- I need to see a diagram of the powerhead (primarily the brush roll area and belt). I took it apart to clean and now I am trying to put it back together and I am unsure of where one part is supposed to go (yes, I am a woman and a blonde too!!). Where can I find a diagram that shows where all the parts should be? I looked in my owner's guide and on Eureka's own web site, and could not locate any diagrams or schematics. I searched the web too without success.

Thanks,
Jacqueline :o)