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Old 04-02-2013, 09:55 PM   #21
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1982 28' Airstream 280
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Originally Posted by DENNIS HAWS View Post
The other valve will not air up the bags, but it should. I loosened both lines at the valve and no air came out. I ran out of time, but will be back at it soon. I will keep you posted until the problem is solved.

thanks for your support!

Dennis
If both valves work together it's possible one failed and the PO merely disconnected it rather than replace it. You will need to trace the air line back to the tank to determine if it was damaged or disconnected or both. The 280's and 310's all operate on one leveling valve. You should also check the adjustment to make sure the coach is riding at the proper ride height.
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Old 04-02-2013, 10:51 PM   #22
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(snip) The 280's and 310's all operate on one leveling valve. You should also check the adjustment to make sure the coach is riding at the proper ride height.
A friend had an '81 280 which had two leveling valves, one for each bag. My '83 310 had but one leveling valve which operated both bags. So, AS made some change at least between '81 and '83. They were experimenting on them as they went along, I think.
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Old 04-03-2013, 12:53 AM   #23
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A friend had an '81 280 which had two leveling valves, one for each bag. My '83 310 had but one leveling valve which operated both bags. So, AS made some change at least between '81 and '83. They were experimenting on them as they went along, I think.
From what I understand the early 280's had a system with the bags mounted on a fore and aft link on each side and each side operated independently. I don't know who made that system, I have seen pictures of it. I think some Argosy's had an over load bag mounted on a bracket from the frame to the axle. From '82 on they used the system by American Carrier Equipment. That system cuts several inches off the rear of the leaf springs and hangs a cross member from the rear of what is left of the springs. The cross member becomes the bottom mount of the bags and both bags are controlled by a single valve. A version of this system was used on the 310's and 34.5's. I don't know how long they used this system. I believe all the rest of the 280's and all of the 310's used it and I have yet to hear of a 34.5 that had a different system. I have to add that about the only time we hear about air bag systems here on the forum is when they have a problem. Maybe Airstream found another system that never fails that we don't know about.
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Old 04-03-2013, 03:47 AM   #24
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My 79 Excella has 1/4 elipcial springs and independant valves left and right.
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Old 04-05-2013, 10:39 PM   #25
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OK, the problem is definitely the valve. I removed it and it is getting air from the tank. The line from the bags is also clear. I took it apart cleaned it and lubed it up with WD40 and then reinstalled it. All it does now is leak air out the discharge port. Is it possible to get 2 new ones just like the old ones?
Thanks, Dennis
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Old 04-05-2013, 10:58 PM   #26
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OK, the problem is definitely the valve. I removed it and it is getting air from the tank. The line from the bags is also clear. I took it apart cleaned it and lubed it up with WD40 and then reinstalled it. All it does now is leak air out the discharge port. Is it possible to get 2 new ones just like the old ones?
Thanks, Dennis
Give these guys a call.

King of the Road - Height Control Valve for Suspension

They can talk to you about valves.
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Old 04-06-2013, 10:53 AM   #27
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THANKS! I called them and am in the process of figuring out which are the correct ones.
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Old 04-09-2013, 10:52 AM   #28
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They had the right ones in stock. They are shipping them to me now.
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Old 04-09-2013, 10:54 AM   #29
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Dennis, do you have the part numbers?

Shepherd57 is currently looking to replace one or both of his and will likely be looking for the part numbers so he can order as well.

Brad
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Old 04-10-2013, 08:43 AM   #30
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The part numbers are k863001 Hadley HCV for the valves [89.55 ea.] and K880018 KOTR 7 for the linkage rod kit [8.90 ea.]. Talk to Rob 800 831 1893 ext. 302. He is a great guy, very knowledgable and helpful.

Thanks for all of your help

Dennis
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Old 04-10-2013, 10:33 AM   #31
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Thanks! I'll make sure John sees this post.

Brad
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Old 04-22-2013, 04:43 PM   #32
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Success!

The new valves fixed it. My only question now is the proper ride height setting.
Right now I have 9 1/2" between the surfaces that the bags push against, or the underside of the frame above and the top of the lower arm. As a sidenote check out the you tube video-Vintage Airstream classic motorhome factory production 1980's.
It shows them being made and the rear suspension in action.

thanks Dennis
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