Dumping Airbags

down home wrote:

down home wrote:
We are able to level on far more slanted ground if we don't dump first. The Revolution dumps very quickly and is very audible. We have three air tans all tied together and the air brake does take pressure from the system.
If we dump first we frequently find the ties at one end or the other off the ground at many campgrounds. the sites may look fairy level but are not sometimes.

I'm wrong. I looked at the HWH site and it says to dump first, which we usually do so I must have something else amiss as other coaches don't seem to pull the wheels off the ground as often.

down home,
I'm always learning things here. There's a couple of things in your post I'm wondering about. You state you have three air "tans" (I'm assuming you mean air "TANKS") that are tied together. And, you say your "Air Brake takes pressure off the system"??? Not exactly sure what you're meaning by that. The reason I ask is, ALL air brake equipped chassis, with normal brake cans, do not use AIR pressure for the parking brakes.

When you push the button to set the parking brakes, you're actually "releasing" air from one side of the rear brake cans so the seriously strong spring can apply the brakes. That is a legal requirement. Air pressure legally is not allowed to be used for parking brakes. So, there should be no depletion of any amount, in your air tanks due to setting the parking brake system.

And, just wondering, you mentioned that if you level prior to dumping on un level sites, that you can level easier. Again, I'm not sure what you're meaning on that one. What I mean is, if you pull onto an un level site, isn't your coach is sitting parallel with the ground (no matter how un level it is) because of your ride height sensors are keeping the coach level. You're just higher because your bags are still full.

Now, trying to level from a fully raised position sure seems to me that you'd tax the high side levelers right off the bat and you'd be no where near level. But, if you dropped the bags, your coach is still parallel with the ground, only a lot lower and, your jacks might not be taxed too bad because they don't have to travel as far to achieve level. Again, just learning things here.

One more thing, may I ask, what model number of HWH system you have?
Scott