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Old 05-20-2022, 12:48 PM   #1
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RV Storage and air bags


I have been RVing for awhile with trailer trailers and fifth wheels. I just upgraded and purchased a class A Thor Aria 3401. The question I have is: should I be storing the motor home with the air bags full of air or should I dump all the air while in storage? Thank you for any advice.
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Old 05-20-2022, 01:03 PM   #2
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It really doesn’t matter. If you have everything shut off, the bags will naturally lose air over time. Or you can dump air.
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Old 05-20-2022, 01:48 PM   #3
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If you park with the bags inflated, in time they will be deflated, so it really doesn't matter how you leave it. As the saying goes, you can dump me now or I'll dump me later.
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Old 05-20-2022, 08:41 PM   #4
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I would dump the air in the air bags. The air bags will loose air over time but typically at different rates which could possibly twist the frame.
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Old 05-20-2022, 08:59 PM   #5
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Cool Don't dump them...

Air Lift says to leave "some" air in the bags to prevent them from distorting/wrinkling which will shorten their life. I run my Air Lift 5,000# bags at 50 psi when towing my 10' cargo trailer {2,200 - 2,600#} with our 24' Class C.
This raises the tongue about an inch and half bringing it dead level with the top of the ball at 16" as recommended by the trailer manufacturer.

When not towing I keep 25 psi in the bags which improved the overall ride and handling as we normally run close if not at our GVWR of 11,500#. Yes, they will all lose some air over time so check and top them off as needed on a regular basis.

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Old 05-20-2022, 10:15 PM   #6
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I dump the air and then leave the coach on the levelers , check level once a month when in storage.

When not being driven my coach is on the levelers 12 years and counting , no air bag issues no leveler issues .
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Old 05-20-2022, 11:14 PM   #7
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Originally Posted by Ilvmygt View Post
I would dump the air in the air bags. The air bags will loose air over time but typically at different rates which could possibly twist the frame.
"Twist the frame"???
No Sir, that won't happen. What do you think the frame goes through when you enter drive ways? How about radical entrances to gas stations? How about turning from a level street to an uphill one? No, you won't have frame twist just because one air bag looses air faster than the others and "tilts" a little bit. Frames can take quite a bit of "twisting" waaaaay before any damage can take place.
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Old 05-21-2022, 08:09 AM   #8
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Here is what I learned at Camp Freightliner about storage, tires and air bags. Build a set of wooden blocks that will just fit under your leveler pads when they are in the up/retracted position. Push the blocks under your leveler pads then release the air suspension. Your rig will settle onto the blocks but the levelers will support most of the weight. The leveler rams are NOT exposed. Your tires now only have the un-sprung axle weight on them. And to further protect the tires, place any non-organic substance under them during storage. I park on concrete so I bought a 4' x 8' sheet of fiberglass reinforced panel (FRP) at Home Depot and cut it into four 2' x 4' sections. My tires rest on these panels when in storage. Theory is it helps prevent the natural "oils' from leeching out of the tires. Not sure but it makes sense and the FRP is cheap insurance. I also am fortunate enough to be able to store indoors and I just replaced my original tires at 8-1/2 years. Tires had no physical damage at all (cracking, drying, knots, bulges, etc) and still had 7/32" average tread depth after 50,000 miles. This was a better safe than sorry, time based replacement.
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Old 05-21-2022, 08:18 AM   #9
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I would dump the air for two reasons. It's closer to the ground and the bags are not stored under load.
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