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RWjSIM2003's avatar
RWjSIM2003
Explorer
Sep 03, 2014

New MH airbag operation

Just purchased a 2014 Fleetwood Discovery DP MH. having some issues understanding the air bags and looking for some help. I have a toggle switch that says lower and auto. My understanding is that on auto the chassis will auto raise and lower.

Took the MH camping this weekend started MH let airbags inflate and raised jacks. Went to release the parking brake and air pressure dropped to 85 with foot on brake the bags were slow to get back to 120psi. I am surprised that every time I release the break that I lose air.

Am I doing something wrong? How do you operate the airbags on your coach?
Class A

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  • bshpilot's avatar
    bshpilot
    Explorer
    Sep 03, 2014
    in auto the bags will do their best to maintain ride height & a level ride.

    dropping the jacks (or raising the coach) will let air out of the bags (as it raises the frame)....this is normal.

    when breaking camp you should RAISE the jacks (lowering the coach), then start the coach and let the bags fill until the compressor cuts-out (or shuts off).

    each time you press the brake pedal you use some air from the tanks (press harder and you'll use MORE air)....once air pressure drops below 100 or so lbs the compressor will cut-in (aka turn on) and refill the air tanks (to about 130 psi) where once again the compressor will cut out (aka turn off).

    your brake air supply is based on the PRIMARY air pressure gauge.
    the airbags are usually represented by the SECONDARY air pressure gauge.

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