I've got the checkvalves replaced but I can't seem to get the diaphram out of the housing. The pin is out, the arm removed but can't budge the diaphram from the body. And another question, when I do get the new diaphram in place, where do the two little tabs or ears on the end of the arm go in relation to the diaphram. Do they go under the thick rubber seal or do they go under the metal washer / keeper or do they go between the metal washer / keeper and the flat end of the metal rod that holds everything together? I sure hope this makes sense. Thanks for any help!!