The reason most don't mention it, is that it is not used on all models. There where several different models of air-pacs in service for our deuce's brake system. I mentioned it in one of my rebuild threads for the air-pac. I just bought some 'O' rings from the big 'O' ring supplier in Kirkland (Totem Lake) .Thanks! I wish I'd have known that before I ordered two new switches. :/ The SMARPI for dual-circuit still notes using the hydraulic stop switches. I did find the PSMAG sheet on updating and have ordered the kits from Eriks.
I did find that there is a small conical rubber oring between my air cylinder and the slave body, but there is not replacement in the rebuild kit. Does anyone know where to get one? It goes in a recess around the 5th hole on air cylinder. I may just not be searching right because I don't see other folks mentioning it in their airpack rebuild threads.
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