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Air bag won't inflate

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Edward Buker:
John,

As others have pointed out you should not get under the coach and spray anything. The typical configuration has one air valve in the front that supplies the front air bags and that is probably working fine. There are two valves in the rear and my suspicion is that one of them has had the adjusting rod slip and is not calibrated properly anymore, given that you come up on the low side but not within proper calibration it would seem. As Gerald points out it could be a broken rubber coupler but my guess is, if that was the case, the side with the bad coupler should be lower with the bags on that side being depleted. It may also be that the good side partially lifts the weak side.

These valves have rods whose mounts are welded to the backside of the differential. What you may be able to do with a mirror set on an angle on some form of handle and a flashlight, is examine the mechanisms from a safe distance the to see if both rods are coupled properly and if the rubber couplers are in tact. This would give you are starting point to discuss the issue with someone who works on suspensions and can bring the proper support jacks to safely get under the coach and work on it.

Later Ed

Richard And Babs Ames:
If you were level when you stopped odds are it is terrain causing the problem. IE one side of the rear or front axle and tires higher than the other. Driving foward should allow the coach to level itself out.

John Padmore:
Ok, I had a truck repair mechanic look at the coach. He adjusted an air control valve on the front, and we were good to go! Took the coach over to their shop for Cat service and to have brakes checked. They will do a complete service and check the air suspension also. Thanks to all for your ideas and support.

Johnh

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