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Old 01-11-2016, 09:42 AM   #15
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Myths and facts time:

Air is compressible, so if you level by air as you move around the RV it may tend to "Wobble" a bit.

Hydraulic fluid is actually compressable but you are no where near the pressure needed to notice it in your system.

IF the RV makers had used STEEL lines with shoret steel braided hoses at the ends you'd see nearly NO wobble with hydraulid leveling.

BUT. they did not, they used hoses which have some give to 'em so you will still see some wobble as you move about.. However far less than with air.

Now: My RV has only hydraulic.. I plan on adding air bags some day

once I do I'll level with air, THEN drop the Hydraulics and when they are firmily down "Blow" the air (Release the pressure) so it's sitting on the hydraulics

Jsut now due to hydraulic failure it's sitting on jack stands,, That works well too.
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Old 01-11-2016, 10:02 AM   #16
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Quote:
Originally Posted by barmcd View Post
Is there any advantage of one over the other or is it a coke vs Pepsi type thing?

I LOVE our air leveling! Don't have to worry about how soft the ground is beneath the MH, no hydraulic jacks to go bad, I can dump all the air to put the door step low to the ground so no stool is needed, and the list goes on and on..........
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Old 01-11-2016, 03:21 PM   #17
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I've had both, and prefer air!
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Old 01-11-2016, 03:55 PM   #18
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I have had both and prefer air. Actually air leveling was on my list of "must haves" when we were coach hunting back in 2006/2007.

My experience has been that when a coach gets to the 27k-ish pound mark it gets really hard to keep the jacks from sinking into non-solid surface. When we were sand drag racing and duning, our 38' Beaver, weighing right @ 29k pounds would sink if you looked at it wrong in either the sand or the grass at the dunes. I even cut some 14"x14" laminated beams for placing the jack pads on and the weight of the coach would merely push the blocks into the ground. When we would leave the grass campsites, I would have to dig my blocks out of the grass which sucked. Our friends with their 34' Journey which weighed closer to 23-24k pounds didn't seem to have any of the issues we were having and they were parked right next to us.

Our current coach weighs 36k pounds and doesn't even begin to sink into the grass. The other thing I like is for traveling and pulling into a rest area, Walmart or other business for lunch, I can dump the high side a bit to level while parked for lunch without looking like we homesteading with our jacks down.

I'll never go back to hydraulic leveling jacks.

Mike.
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Old 01-11-2016, 03:57 PM   #19
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Thanks for your replies, it gives us something else to think about.
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Old 01-11-2016, 06:14 PM   #20
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I have hydraulic and it has worked well especially on very uneven surfaces. Also I like being able to lift a wheel of the ground for service etc. But the simplicity of air leveling is attractive.
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Old 01-11-2016, 06:26 PM   #21
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I have had both, I prefer air leveling


Don,

I wished that I had both but have to settle with just Air Leveling Only.

There are times that I would like to have the hydraulic jacks also to stabilize the coach when in windy conditions. I prefer to level with air and would not use the jacks but only for stability.

Dr4Film ----- Richard
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Old 01-11-2016, 09:20 PM   #22
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We've had both, but not on the same rig. On our present rig the air provides 8" of lift and so far that's been enough, except at home due to the slope on the ground. I need to bring in more gravel and add some blocks to support it.
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Old 01-11-2016, 10:55 PM   #23
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The more expensive coaches come with air leveling. I think that kind of tells the story.
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Old 01-12-2016, 07:26 AM   #24
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I remembered this picture when we were camped on a hillside at the 2014 Austin MotoGP race. All the good upfront trackside sites were very sloped. This was a situation where hydraulic leveling paid off. The coach leveled itself with both right side wheels suspended. The step out the door was four feet down, fortunately we had a brought a step latter. Note the camper behind us parked on a stack of lumber and still not level.
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Old 01-12-2016, 07:46 AM   #25
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The more expensive coaches come with air leveling. I think that kind of tells the story.
Personally, I think it has more to do with weight than the pricetag, the most expensive also just happen to be the heaviest.

On our 29k pound coach we would even leave divots in asphalt in the summer with the large laminated wood pads.

Mike.
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