Help Please, Christen wobble pump/selector

[darylat8750]

Help....
I think I've seen a post that referenced a diagram and parts list for the Christen wobble pump with the two tank selector. Darned if I can find it. I want to check the filter on mine and it is difficult enough to access that I would like to figure out what I'm trying to do before putting a wrench on it. If it can be done from the bottom I will be looking less like a pretzel when I'm done. I found when someone listed Fram CG12 as the filter. Sound right?
Daryl

 

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[rbriege]

 

[darylat8750]

 

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[jstreat]