Hi Randy,
I am headed to TX this Saturday. When I get there and get the unit cleaned, I'll be taking a lot more pictures, including detailed pictures of this suspension that has everyone intrigued
Here's what I can tell you about it though:
COMPRESSOR
It's a
Viair unit that has a regulator with a low and high limit on it. It is mounted in the front-most storage compartment on the door side, up high, yet underneath the hydraulic pump/reservoir. There is a 12 volt DC power toggle switch at the compressor so I can turn it off in the event of an air leak that would call for air and make the compressor run continuously.
TANK
The air storage tank is mounted to the underside of the coach, up tight against the underbelly, side to side, between the 2 axles. It looks to be maybe 5 gallons. I believe I was told it can refill the air bags twice.
ACCESSORY AIR
There is a female air coupling under the door-side frame rail, just forward of the steps. You can use this for two things. First, you can air up tires etc. S econd, you can use it to add air into the air system in the event of a compressor failure on the road.
BAGS
There is 1 at each tire position for 4 total. They are
Firestone. Each has a rubber stop or overload bumper in them so the unit can ride, in a failure mode, without air in the bag(s).
SHOCKS
There is 1 at each tire position for 4 total. They are
Gabriel and appear to be pretty heavy-duty. I assume they are to control/dampen recoil.
AIR CONTROLS
Each side of the coach has 2 small red-handle valves, side-by-side, just under the frame rail. The front-most valve isolates the front bag on that side. The rear-most valve isolates the rear bag on that side. Same deal for the other side of the coach. So 4 of these air bag isolation valves in total.
On the off-door-side, behind the sewer discharge and ahead of the front-most axle, there is an air-gauge and a 3-way ball-valve. In the normal position, the air system is connected to the bags, to the tank and to the pump. In the dump position, the air is dumped out of the bags only, but not the tank. And the pump does not run, as the tank is not calling for air as it is isolated in the dump mode.
OPERATION
In the normal operation mode, the compressor has charged the tank which has filled the bags. There is a level gauge of some sort on the rear axle, on the door-side, not unlike the system on the Link Mfg. air ride system on my truck. This controls how much air goes into the bags based on a predetermined level ride height (I guess). In the normal mode, the 3-way ball-valve remains in the normal position and the DC power switch to the compressor remains on.
When I setup at a campground, since I have the Lippert Electronic Leveling system (4 points hydraulic plus 2 points electric for stabilization), I unhitch and pull the truck away. I then rotate the 3-way ball-valve to the dump position. The air immediately dumps out of all 4 air bags and the coach drops down in the rear by 3 to 4 inches from its normal ride height. I then hit the Auto-Level button on the leveling system and it does its thing. Done
When I hitch back up, I raise the leveling and stabilizing legs to their stowed position, raise the front landing gear to the hitch height, back into the hitch and complete hitching per normal. I rotate the 3-way ball-valve to the normal position. The bags fill from the tank and the coach immediately raises to a level ride height. The compressor may or may not come on, depending on whether the tank requires air, based on the pressure as read by the regulator at the compressor output.
I type this like I am an expert at this. I AM NOT. I have done this once. Pretty good at the theoretical though
I have a good set of written instruction on the Lippert leveling system. Lippert showed me how to run the system once. The guy from Trailer Flex showed me how to use the system once. With each, I asked a lot of questions and took a lot of mental notes
Experience and written procedures after several cycles will be my best teacher and going-forward process.
Pictures in a couple weeks - I promise!
Jim