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Old 10-22-2017, 07:11 AM   #1
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Air vs. Hydraulic Leveling

Just got ourselves a new Mountain Aire from Transwest at the International Rally. Because we didn't expect to be buying a new MH our delivery was rather rushed as we had to get back home. Thus I am still getting acclimated to all the new features.

The unit has both air and hydraulic leveling. Under what circumstances would one use the air leveling as opposed to the hydraulics? Seems redundant to me, so I figure there is a good reason it is there.
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Old 10-22-2017, 07:24 AM   #2
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Quote:
Originally Posted by MD-Keith View Post
Just got ourselves a new Mountain Aire from Transwest at the International Rally. Because we didn't expect to be buying a new MH our delivery was rather rushed as we had to get back home. Thus I am still getting acclimated to all the new features.

The unit has both air and hydraulic leveling. Under what circumstances would one use the air leveling as opposed to the hydraulics? Seems redundant to me, so I figure there is a good reason it is there.
Congrats on the new coach, you sure jumped into the deep end. We picked up our London Aire this past April so I know exactly what you are going through. So many systems to learn and keep.

We use the air leveling when we are just staying 1-2 nights or even if we were parked on asphalt on a hot day or worried about the spot getting muddy and having the hyd jacks become stuck in the mud. Are you on a Freightliner or Spartan chassis. I have Freightliner and thus an auxiliary air pump. The system once set, will wake itself up every 2 hours to check for level. If needed, the aux air pump will come on and recharge the bags. The other reason we have used the air leveling is when we were on a very unlevel site and when we put down jacks it wanted to bring the front end off the ground. We have had some issues with our air leveling system but worked through them with Valid and now the system is working good.
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Old 10-22-2017, 12:14 PM   #3
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Both the Spartan and the FL have HWH air leveling with a air compressor to adjust level after coach is parked.
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Old 10-22-2017, 01:23 PM   #4
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Welcome to the forum, Keith
We have some threads in QT's # 3 that might give you more info I'll look them up for you. --- #1 ---- #2 ---- # 3

All the links below will have info for your Newmar.
The TSB Link top of forum will allow you to track any recalls or TSB's posted for your coach.

Enjoy the forum and your coach and have safe travels.
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Old 10-22-2017, 02:20 PM   #5
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Thanks 007. We've been here for awhile since getting our Ventana in 2014. This was a rather unexpected upgrade. We were at the Rally and there sat this absolutely beautiful Mountain Aire in the lot outside the Showroom area. The DW shook her head and said "Don't even think about it!"

Being a retired lobbyist I took this as a personal challenge. I managed, in the course of 24 hours to move her to a position of passive neutrality on the basis of a pretty good deal which Transwest offered and the MASSIVE upgrade in closet space. Two days later we were in KC swapping our stuff out...
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Old 10-22-2017, 02:28 PM   #6
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My CC has air leveling only. Frankly, it works so well I don't see a need for hyd levelers too.
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Old 10-22-2017, 02:31 PM   #7
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Quote:
Originally Posted by MD-Keith View Post
Being a retired lobbyist I took this as a personal challenge. I managed, in the course of 24 hours to move her to a position of passive neutrality on the basis of a pretty good deal which Transwest offered and the MASSIVE upgrade in closet space. Two days later we were in KC swapping our stuff out...
It took me a couple months to convince the late DW to upgrade from our '02 DSDP to the present Magna. Now that it's just the cats (7 of them) and I I really wish I hadn't made the trade!
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Old 10-22-2017, 03:40 PM   #8
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Originally Posted by tom chelbana View Post
Both the Spartan and the FL have HWH air leveling with a air compressor to adjust level after coach is parked.
I was told recently (by an owner) that the Spartan chassis did not come with the aux compressor, so I am confused.Thanks
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Old 10-22-2017, 04:13 PM   #9
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The Spartan Chassis made for Entegra does not have the aux air compressor. However, the Newmar chassis version does.
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Old 10-22-2017, 04:36 PM   #10
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Wayne, prior to the 2018 model year there was no aux air compressor. As I understand it this was an improvement for 2018 on both chassis types on the higher end coaches.
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Old 10-22-2017, 05:06 PM   #11
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Quote:
Originally Posted by MD-Keith View Post
Just got ourselves a new Mountain Aire from Transwest at the International Rally. Because we didn't expect to be buying a new MH our delivery was rather rushed as we had to get back home. Thus I am still getting acclimated to all the new features.

The unit has both air and hydraulic leveling. Under what circumstances would one use the air leveling as opposed to the hydraulics? Seems redundant to me, so I figure there is a good reason it is there.
My take on it is that the Hadley air suspension system serves to maintain ride height and will self adjust for conditions, i.e. slope, turning, or otherwise when operating the coach including giving the user the ability to raise or lower the coach while in motion (i.e. to drive under a low bridge, elevate if need be, etc) as well as perform as a static position leveling system if desired. The HWH hydraulic system is for use when docked/parked and provides a more affirmative leveling using the jacks/pads which in the process take precedence over the air bag system (deflates it) when deploying the hyd. jacks giving you a firmer level stance. The HWH can also be used to tilt the coach from one side to the other when desired for service, for draining collected roof top water, etc. As well, should one system fail, you have the other as a back-up for static position levelling.

At least that what' I've learned being the owner of a '17 Essex which like your MA has both systems.
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Old 10-22-2017, 08:22 PM   #12
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My take on it is that the Hadley air suspension system serves to maintain ride height and will self adjust for conditions, i.e. slope, turning, or otherwise when operating the coach including giving the user the ability to raise or lower the coach while in motion (i.e. to drive under a low bridge, elevate if need be, etc) as well as perform as a static position leveling system if desired. The HWH hydraulic system is for use when docked/parked and provides a more affirmative leveling using the jacks/pads which in the process take precedence over the air bag system (deflates it) when deploying the hyd. jacks giving you a firmer level stance. The HWH can also be used to tilt the coach from one side to the other when desired for service, for draining collected roof top water, etc. As well, should one system fail, you have the other as a back-up for static position levelling.

At least that what' I've learned being the owner of a '17 Essex which like your MA has both systems.
We may be talking two different air leveling system. The Valid air system is for leveling while parked. The Hadley air ride system is used for travel mode. The HWH jacks like the Valid air leveling is for use while parked.
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