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Leaking Port
See attached, I ordered another one, but it will be a couple of weeks 🙁 I stuck a plug in the hole to stop the leak but I’m not sure what this little gadget controls .. the lines on it are not marked. I’ve been through the bus testing air powered accessories and couldn’t find anything that seemed to change function (checked the air-toilet twice to be sure)
Thoughts?
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8 Replies
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It’s a 3 port solenoid operated spool valve, not unlike our Norgren valves.
On our coaches spool valves are used to a great extent on our suspensions, but there are other applications throughout our coaches including converter installed systems and devices.
I suspect it is converter installed because the wire to the solenoid is numbered. All you have to do is associate that number with the converter’s devices.
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Yeah I think its coverter as well, as the prevost people don’t know what its for .. of course my bus has no manuals and the coverter has long since departed. Oh well, going to hook up the line screamer and walk the switch panels until I hear something near something and diagnose from there..
Another funday in the bus.
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What might be the easiest is to figure out everything on the coach that uses air. Unplug the thing at the solenoid and one at a time see if they still work.
The fact that it has the solenoid control tells me it is not something passive like generator air bags, but something that must be activated like a dump valve or pocket door. Can’t be too many air operated devices.
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Looks like its the step-cover control … Found it by tracing the wires back to the switch itself..
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Just sayin, and it may not pertain here.
Sometimes air leaking from an unused/empty port is not a fault of the valve, but air coming from somewhere else, either because it is supposed to or a leak down/up the line.
JIM
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Jim, your comment is very valid and each owner does need to develop at least a basic understanding of the coach. Chasing air leaks is frustrating, time consuming, and if done by a service shop can get very expensive unless the shop knows the coach.
Here is a simple example that I think applies to all coaches…….When the rear end of the coach is lowered manually the 5 port Norgen valve in the rear left or right exhausts the air in the air bags but it actually is discharged through a three port valve(s) in the steer compartment. If both the 5 port and 3 port leak air is going to be leaking in the front yet a person looking for a reason why the bus leans in the rear is going to spend a lot of time and use a lot of soapy water looking for leaks in fittings or air bags in the rear, when the clue is the leak up front.
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I had a similair problem on my floor air slide.
The hole that had air escaping is probably the vent and designed to exhaust air
when cycling the switch. Mine leaked at the exhaust hole also and I discovered
bad “O” rings on the slide cylinder. I also changed out the valve.
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I have not traced the control for my floor slide yet, but for the H3 folks that looks just like the Norgren valve that controls my camera pod door. Mine is located in the engine compartment.
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