[Binford]

I am going to replace the solenoid valves on the manual air leveling system. I have purchased the valves, 12 total. There are six in the front and six in the back. I’m wanting to know how they work before I remove them. What l can tell, two are exhaust and two let air in. The other two I’m not sure. There are two of a different style not sure about them also. Does anyone have any information about this? Wiring Schematic or how they are piped in?

[David W]

I'll look at mine later today as I have close to the same system. I had trouble finding much about this system but I am learning.
2 that let air in - right and left up
2 that let air out - right and left down
The other 2 should be for the travel system

The problem I had with mine was the travel system didn't work at all and I found a cut wire that activated it. Fixed wire and works fine.

[Richard]

With a coach that is 40 yrs old, who knows what previous owners may have substituted. Post pictures of the existing valves and setup. Otherwise we are all speculating based upon what we have which may not be what you have.

[Binford]

With a coach that is 40 yrs old, who knows what previous owners may have substituted. Post pictures of the existing valves and setup. Otherwise we are all speculating based upon what we have which may not be what you have.

Those are pictures I took and drew the drawings before I removed any solenoids. The dash drawing and switches are as they are drawn yesterday. The wire color match the switch to the solenoid.