Air leveling question

Just to add to what Dennis explained very well.

The HWH air leveling system will first level the coach side to side, then front to back. It will repeat those two steps till the coach is level or the air bags run out of adjustment.

The first step the HWH does in leveling is to release air to achieve level. There are sensors on the air bag manifold that will allow the air pressure to only go so low. Those sensor setpoints are unique to each coach manufacturer. So, what that means is the HWH brain will not let the coach sit on the frame when leveling.

If, and only if, the HWH brain cannot level the coach by exhausting air, then it will cause the aux compressor to come on and the brain will inflate air bags to raise a side or end of the coach.

Because the HWH brain exhausts air first, you will find on almost all cases that the step is as low to the ground as it can be for the site you are parked on. Much lower than a jack based system.

You can override the system and manually level if you choose.

And to repeat what others have said, the HWH air leveling system does NOT work like the HWH hydraulic jack system.

We have the same system. Verify in your manual but in mine, the proper procedure is as follows: This is MONACO specific so other mfgs may differ.

1. Park the coach as level as possible.
2. Deploy the SLIDES with full air.
3. Push the button twice. Coach will level and shut off. May or may not dump. Mine usually will not.
4. Continue your set up. After about 30 mins the coach will dump the air in the bags and relevel with the aux air compressor. Mines over the rear axle, yours may either be there or up front near the generator. Monaco moved it in later years, don't remember when because of the releveling noise at night.

When leaving, start the coach. When full air, press the travel button. Wait for the coach to completely air up. Turn off coach, pull in your slides and you're ready to go....Dennis

Keep in mind several responses you got are for HD Jacks ..not air leveling , using the airbags only to level the coach. I have HD Jacks( 1 of two systems) also but they are the older safari system that only goes from frame to axle .. nothing touches the ground. The airbags are very stable alone ,unless your doing jumping jacks ! Dropping the coach first I feel they are even more stable as the frame is resting on the axle at least before it levels . I've only used the HD jacks once .. never felt i've need them

Remember the Monaco is slides out first before you level or dump any air

deandec wrote:
We level our rig, then turn off the engine and dump the air. It usually dumps to a level attitude and can be adjusted manually from there. Yes the step is closer to the ground.

No. The Monaco came with hydraulic leveling jacks or the "upgraded" air leveling system. This has the air system, no jacks. Much to my surprise, once level it is rock solid!

We level our rig, then turn off the engine and dump the air. It usually dumps to a level attitude and can be adjusted manually from there. Yes the step is closer to the ground.

Are you talking about just using the air suspension to level the coach? Like in a muddy location where your jacks don't help to much.
I know the newer Tiffin buses have that feature, to level without the jacks.
They also have the standard leveling jacks.

I did not like air leveling as even 15 tons coach will move with 100lb person walking around.
And if at any doubt - read the manual.
Too many variations in design to apply procedure from one system to another.
I remember practical advise for tilting jacks to move them to vertical position before dumping the air.
When you set the coach too low before tilting jack, they can hit the ground at angle with bad consequences.
Always check the jacks around before lifting.

My HWH system will allow the coach to settle all the way down when I push the on button twice, allow it to lower the coach until the hydraulic pump starts. then shut the system off, then restart the system again by pushing the on button twice again, this will start the cycle again and allow more air out until the coach is as low as it can be.

If you want the coach level as low as it can be. simply turn the system off again, then push the on button once and run the jack position that is lowest. (in the manual mode)

Forgot to add, HWH systems allow air to escape on a timed cycle, not a pressure reduction cycle.

that depends try it and see. I have a 2003 beaver Marquis with HWH and it doesn't dump before it levels, neither did my prior coach . I turn the coach off ( so it doesn't rebuild the air) push the dump button and then push the auto level it will level on the down position using the electric suspension pump.

On my Beaver coach the HWH system auto dumps the air to the lowest point when I push the level button. Then the coach begins the leveling process.