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Old 05-03-2011, 06:44 PM   #1
Join Date: Apr 2011
Posts: 31
Year: 1997
Coachwork: BLUE BIRD
Engine: T444E
Rated Cap: 65
Air ride suspension

Dear Skoolies,
Has anyone air ride on their bus? Do you like or dislike the system. Where can I obtain a trouble shooting guide? Is there such a guide? I believe, I have a leak in one of the air springs, how can I determine this? Thank You every one for Your help. Sincerely, SCARECROW.
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Old 05-05-2011, 03:10 AM   #2
Join Date: Sep 2006
Posts: 105
Year: 92
Coachwork: ward flat nose
Chassis: international
Engine: dt466 mt643 air ride
Rated Cap: 84
Re: Air ride suspension

I've got air ride and wouldn't have it any other way. I only feel the bumps when the front (steering) axle hits them and that's not nearly the jarring you get when a spring ride rear axle hits a bump.

As far as air leaks go, if you bus looses over 15 lbs of pressure after sitting with the engine off for one hour, you have a major air leak, and should be able to hear where its coming from while under the bus. If the air bag (spring) is leaking, your only option is to replace it. I've never heard of anyone patching an air bag.
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Old 05-21-2011, 02:29 AM   #3
Jive Turkey's Avatar
Join Date: Jun 2009
Location: Alberta
Posts: 47
Re: Air ride suspension

Air ride is actually a very simple system not much to go wrong. The ride height control valve is connected to the frame on one end and to the axle housing on the other end. The RHCV is going to be the most common item to mess up in the system. It's the one piece that moves with every little bump. So from either wear or internal debris they fail, I would always suspect it first. If something is not so obvious spray soapy water on the air bags, rhcv and coupling's/connection's etc until you see bubbles.

As far as adjusting the Ride Height Control Valve, I would be very careful you have to consider the drive line angles, they are set at the factory. If you feel the need to adjust I would take measurements between the axle and frame before you do. If they are out of whack you will have very bad drive line vibration.

There are several ways they are setup but they are all basically the same.
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