Hector,

We are reaching for the stars here. I agree that a knowledge of our systems, and espcially the braking systems is very important (that was my first seminar) but when we get into check valves and relay valves the number of owners that need to know that can be counted on the fingers of one hand.

What is critical is telling owners how to interpret gauges to know when they have a problem, and where in the system that problem might be. The area you are addressing right now is a good one for those who will literally be doing their own diagnosis and repairs (I can name names), but few others will benefit.

What I think will be important is giving an overview of a typical system and how the components come into play. For example the foot pedal doesn't just open a valve and send air to the brake chamber. It is like a switch that tells the relay valve to send air. The only thing that makes that important is in knowing there are components under our bus that play a critical role such as relay valves, quick release valves, check valves, etc. Perhaps that seminar can be targetted to the serious gear heads who want to know when a relay valve is not functioing properly. I just hate seeing us split the group into two groups. I think seminars should be of common interest.

We got deep into the suspension valving, but that being available to all helps protect everyone from a mechanic who is supposed to fix the leans replacing valves on the LH side to cure a lean to the RH side. I am not sure I ever heard of anyone having to replace protection valves or relay valves.