Prevo Level-Low

[Ace]

Funny thing.... on my H model, I park then dump the air in my tags and the rear of the bus goes down level. I then hit my kneeling button and the front goes down. While the front slowly drops, I watch my interior level that I installed and when near level, I turn the ignition off. Oh forgot to mention, the engine was already shut down when leveling! If the front isnt quite low enough I just turn the ignition back on, hit the kneeling button again and lower to where I want it and then tutn ignition off again. So far, almost every place I have parked has worked out very well. Only place I remotely remember that this didnt work was Palmetto cove but the whole place is on a hill to begin with. Boards under one front tire solved the problem!

[luvrbus]

On the HWH site they have a lot of info and drawing (15 pages) on the Prevost leveling system the Vantare had a HWH air leveling system seen those on other Prevost also

good luck

[Zeroclearance]

I haven't opened the link.  However, on my H3, I usually will adjust my left and right level by dumping my left or right air bags.   I will drop the front usually 3 to 4 inches to get a nice front to rear level.   It's a nice feature.  It works for me.   At around 4 or 5 days I need to re-adjust.  Usually my left side with the slides will droop.

[robertglines1]

I just built my own level system. level it once and it's good for as long as you are parked. return it to neutral position when your ready to hit the road and she airs up to travel position. Support air compressor runs about 2 minutes every 24 hrs. Kiss principle.  Takes about 30 seconds to level.  Parked 2 1/2 months last time out.Takes a tight air system! maintained at 80lbs.   Bob

[Joe Camper]

Zero clearance not all chassis have the level-low feature you and I enjoy only the empty shells that came out to be sent to the converters had it.

All the coaches that came from prevo as charters only have the ability to dump the front down or "kneel it". The charter chassis also do not have the ability to level side to side (do anything manually with the drive axle). At best they will be exercising Aces method.

Another issue is the original front bags on the straight axle and the "260" part from Prevo, they can not raise the front end when you are loaded up. Replacement for these bags is Prevo # 259 those will get it up in a hurry. I have worked on quite a few motorhomes with the 260's and some do not even have the ability to get to ride height much less above that point.

If your current front air bags are up to the task you should be able to raise the front 4 full inches above ride height.

[Joe Camper]

Zeroclearence 1 other thing you said the left rear goes down but very slowly. I concour if it takes 5 days that is really not bad at all.

Should it get worse here is a way to isolate the leak further and find the leak quicker.

Your Left-Rear leak will be 1 of 2 spool valves  or the 3 air bags right there at the L-R

On a side note when the front leans it has  nothing to do with the front, side to side is all done at the rear that is the only place the leans can come from. The front is a third point the two sides are connected it cant make the bus lean just drop when it leaks.

So how to see whats leaking

Put it in level-low and raise the rear all the way up, both sides. Then dump or raise the tag and turn the bus off and leave it. If the leans still persist it is the 3 position (5-way) Norgren or the 2 drive axle bags or corresponding fittings or lines. If the leans go away with the tag up and it stays level it will be the 2 position (3-way) norgren valve or the tag bag on that corner.

Some years have a r12 valve plumbed off the feed for the tag bag you can look up there to see I do not know exactly what years did this but it was early 90. It closes the air to the tag brakes when its up so you dont scuff  and flat spot the tag tires.


Hope that helps some. Nothing uglier than a big shiny bus with the leans in the morning