cant put it back together?

We have a Simpson 5kg eziloader model 39S500 which became full of mud wasp nests inside the mechanics of it . I started to clean it out but was called away. My ,very non mechanical, husband trying to help, continued pulling it apart to clean it and now I dont know where some of the pieces came from to be able to put it back together. In particular a circlip??? I would love a detailed diagram with a breakdown of whats what.thank you anyone for any help you can provide

Donna Ohlsen
November 2011