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Old 08-31-2016, 08:40 PM   #1
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Location: Portland, Oregon
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Air Bag question..

Have a Forester 3011DS which has the airbags to help suspension.
I run the airbags at 70-75lbs when motorhome is loaded and we are using it.

I have recently heard that when we finally store it for the winter I should empty the air bags until next spring when I use it again.

Any comments to leaving the airbags filled, empty them, pros or cons ...

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2016 Forester 3011DSF
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Old 08-31-2016, 08:46 PM   #2
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Yes, inquiring minds want to know!

There's so many things I need to do with the MH as compared to the TT.


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Old 08-31-2016, 09:12 PM   #3
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Your rig, like my Lexi, probably has the same airbag system, Firestone.
If you read the owners manual/install info, it will tell you not to run the bags without air. Keep a minimum of 5-10 psi. Don't know if this applies to storage. But i've kept around 30 psi in mine over 3 winters with no adverse effects. I would imagine that keeping air in them would prevent them from developing cracks in any creases that would form if flat.
Tire sitting for a long time with air in it lasts alot longer than one without air.
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Old 09-03-2016, 10:51 AM   #4
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I think the only time air is to be let out of the bags, according to the manual, is when the chassis is put up on a lift.

I had my bags inflated to 75 at the start of a 3+ week trip so I checked them prior to leaving and they had dropped to about 40# which I think was a pretty big loss for 3 weeks. However, since the jacks were deployed, that may have had a bearing on the pressure. I don't remember reading anything about not haveing the jacks down when chekcing the pressure. Will need to check them again since it has been a bit over a week and the jacks are up to see what I get.
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