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Tires, Wheels, Brakes, Steering and Suspensions Discussion of preventative/corrective maintenance and other technical issues regarding your coach's Tires, Wheels, Brakes, Steering and Suspensions and related components.

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  #1  
Old 03-11-2014
Dr Miller Dr Miller is offline
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Default Right Front airbags down a little

I have 1990 WB, lately it's been leaning a little bit more on the right front, when the airbags are inflated. No air leaks that I can hear, pressure will slowly bleed down over 2-3 hours to about 60 psi and stay there a day or so.

I measured the heights today, down 1 inch on right front wheel, and about 5/8 inch lower on right front airbag from the left front airbag.

I have tried to read everything in the forums on airbag adjustment, but still have questions;

My coach has one adjustment link in the center of the front axle, so how do you adjust left and right differently?

I think the right bag just needs a slight adjustment to raise it back up, the rear and tag bags measure the same height on the left and right sides, some bags have been replaced and the others look good.

I do place 20 Ton jacks under the frame while I am under the coach, plus the jacks and keep the airbags up with the aux compressor.

I would appreciate any thoughts, suggestions and instructions.

Thanks!
Dennis
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Old 03-11-2014
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Normally left-right height (for the entire coach, not just the rear) is done with the two adjustments at the back.
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  #3  
Old 03-11-2014
Dr Miller Dr Miller is offline
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Thanks Don,

Do I let the air out of the bags and adjust the linkage until everything evens out?
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Old 03-11-2014
Dr Miller Dr Miller is offline
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Thumbs up

We'll I re read the Ridewell adjustment instructions and the light bulb came on......I believe I've got it !
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1990 PT 40WB Silver Edition
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Old 03-11-2014
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Dennis, Ensure you know what your doing before going under your coach to adjust the air suspension. If you are able to get under it with the suspension dumped you might be safe. If you are under a hard component and you lower the suspension you could be seriously injured or worse.
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  #6  
Old 03-12-2014
Dr Miller Dr Miller is offline
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Thanks Rick,

I understand and will use caution!
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Old 03-12-2014
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giderich giderich is offline
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While under the bus, check the panhard bar on each end of the bus. Any signs of 'rust dust' may be indicative of pending failure. The panhard bar can be 'rebushed' or the complete ends (left and right) can be replaced.

http://www.wanderlodgeownersgroup.co...d.php?p=231006

Read post #31 in the thread above for rod end part numbers.

http://www.wanderlodgeownersgroup.co...d.php?p=231171

Read posts #82 thru #86
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Last edited by giderich; 03-12-2014 at 09:46 AM. Reason: added another link
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Old 03-12-2014
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It is a possibility that one of your air leveling valves is sticking or a swivel joint has broken off of the connecting rod of the leveling valve. I would also look at the panhard rod but I believe the panhard rod keeps you bird straight on the frame rails (side to side) & not so much on the lean. A good indication for the pan hard rod is you will see the rear tires riding closer or rubbing at the fender opening. When you have a high or low side it usually relates to the air leveling valves. I had an issue a few years back when the ball swivel joint seized up with rust and just snapped off the connecting rod and my coach leaned to left. Whatever it might be please be careful under the bird, there is never too much you can stick under your bird to be safe.
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  #9  
Old 03-13-2014
Dr Miller Dr Miller is offline
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Thanks Guys,

I raised the right rear rod 1 1/2 inches and the front is within 3/16 of being level, so I called it quits. Everything looked good under the bird, I think new bags on the the Tags started the leaning last year and it slowly got worse. Guess if it stays level everything is okay.

Little scary under that Bus!.....Next time it goes to the shop with the pit!
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  #10  
Old 03-13-2014
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Ernest Ekberg Ernest Ekberg is offline
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Dennis- if you don't have a shop close by, I just had my coach oil, filters and lubed at Bosselmans in Weatherford. They don't care if you go into the pit to examine your coach.
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