How do i repair my Servis 1100rpm Washing machine?

I have the same problem... on checking the machine I found it was the spinner in the bottom pump that was causing the noise every time the machine drained during cycle. I can only assume it has worked itself loose through use but it won't fit back on to it's holding pin on the motor properly. I'm not sure what the part is to order a replacement and can't find a parts manual online to tell me the part that I should order... help?!?

Neil
May 2011