Rainsoft Q Valve help

Anyone have a service manual / schematic for this rainsoft unit? I've been reading the forums and would like to know what the service techs will be doing next week. Maybe a picture with arrows pointing to the springs, tri-guard valve, poppet, shut off tabs, injector and injector screen … that kinda thing.

Thanks!

Here is my unit:

http://www.flickr.com/photos/25293530@N08/sets/72157623242263572/