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Sitting on the dock of the bay…….
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Mike, There is always going to be sudden surprises, including on our pneumatic systems. Everything from a burst air bag to a relay valve that fails to seat and thus cannot build air. Similarly a brake chamber can fail, but usually their failures tend to be diaphragms which will start to leak slowly and then eventually tear completely.
But one thing is sure, if you do not do pre-trip inspections, especially the DOT brake check you may have to deal with an on the road surprise instead of making a repair before you are disabled.
As food for thought a failed brake chamber is not a show stopper. Do not interpret that to suggest it is OK to drive until a brake chamber is losing air so fast you cannot drive. But if there is a large leak in a brake chamber plug air to the air line going to the brake chamber, and if it is a parking brake chamber issue, cage the spring brake until you can get the coach to a shop for repairs.
As owners we may not be capable of making a temporary repair such as in a parking brake brake chamber, but knowing and understand it can be done and the coach driven safely we do not become victims of road service technicians as has happened to some members.
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referance:tour coach companies:: what I meant is if prevost center isn’t close you could reach out to a local company where ever you are at.. At one time there was a list of reliable shops nation wide.. they could help keep a eye out for critical parts failure …. Your Life your choice! Bob
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R14 relay valve! Provides air to both drive brakes and the parking brake according to tech. We were very surprised that Prevost was able to get us in first thing. We could air up to around 70 pounds and move slowly working our way around the facility and into a bay with the brakes just dragging a bit. Whew!
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The big question is…did you make enough at the casino to cover the repair cost?
Bill III
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Thanks for asking, but no I couldn’t get into a good poker game and there were not any open caps tables!
I also didn’t go broke so it should only take a small loan to get out of service!
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Call me for interest rates.
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You still going to be pissed about my comments in the above post Bill?
As you originally described the problem and circumstances and I questioned that post you got a little pissed.
I’ll repeat that my objective was not to criticize you but to make sure the information was accurate so others could learn.
Jeff and Lindsay
91 Marathon XL -
If you look at my original post, I posted no inaccurate information (actually no information about the break down other than we broke down). When I got information to share we shared. Once I got to Prevost and got things fixed I shared the exact problem we had encountered. I never said I was pissed at anyone, only that their were premature posts that could have either been withheld until more information was available or could have been worded differently to avoid any kind of off putting.
I am not the first to mention that the highly experienced here can come off as talking down to those who have to depend upon others for their repairs. I have been driving a Prevost since 1999 and I have learned WAY more than I ever wanted to know about repairing these beasts in order to be able to afford to drive one. I will quit RVing before I own any other brand but a view from an outsider is not always a bad thing.
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Jon I am new to posting on Prevost Community, and although you have forgotten way more than I will ever know about busses, to me your delivery is what is overbearing. I agree with Bill, him posting that he is in trouble like many others that come to this site don’t want to feel like they are getting slapped on the hand, instead please give us a hug and help us out. There are many folks on here like yourself that have owned many conversions and your experience is invaluable. That is why we are here for the Prevost Community.
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Jons first post is the very essence of what is needed to diagnose and repair complex systems on our coaches. He has spent countless hours analyzing symptoms and typing out clear concise explanations as to what the problems could be. I see absolutely nothing in his post that even approaches a disparaging comment. Also, if you dont want insight into your problem but only want to share how your day is going, ignore the advice or dont post about it in the first place. You can simply say my bus is broken today. This whole thing is rediculous.
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[quote]You can simply say my bus is broken today.[quote]
If you read my original post, that’s exactly what I did.
2000 Featherlite H3-45
2024 Jeep Grand Cherokee
Leesburg, FL -
Bill, without realizing you provided the clues that prompted my first post. Please look at what the posts said.
Your first post got me thinking because you said you started the coach and built pressure and then got moving. To me that suggested a bad combo brake chamber. In your second post you mentioned a brake chamber. You showed a part.
What got my attention as inconsistent and prompted my post saying I was confused was your description of a cycling compressor. Your third post was the key. It confirmed what I was thinking was ultimately described by you as the problem. When you stated air was still leaking loud enough with the parking brake applied it confirmed air was leaking from a relay valve or upstream from the relay valve, such as a fitting or hose.
Everything else such as your pre-trip inspections or lack of desire to develop a basic understanding of systems is background noise, but the two issues combined were instructional. My first point was your mechanical issue is easy to analyze if you were to provide answers to some specific questions. Had you not mentioned you spoke to Prevost I likely would have made a post asking questions. In retrospect Prevost probably did not ask the questions because rather than speculate they knew they would be getting the coach in their shop. In reading your posts you provided clues, and then putting the clues spread over several posts together the actual problem was isolated. This was important because it helps members know that given correct information a lot of problems can be identified.
The second issue that to me was important was to make members aware a pre-trip inspection can not only provide important information about potential problems, it can put the owner in charge of making service decisions, possibly assuring the owner’s safety and eliminating the need for unplanned service and towing costs. I did not want your negative comments to guide owners because I am concerned about our member’s safety and to an extent their wallets.
1984 96" with 8V92TA
(remodeled Liberty Coach)
Greenwood, MO -
What a strange thread. This dust-up sounds like it’s more about personality conflicts than anything else. I’ll bet my left lug nut that there’s some history there. Boasting about refusing to ever do a brake check is just bizarre. That’s like never checking your tire pressure.
I try very hard to do my own research and understand as much about my old coach as possible, but Jon’s unsolicited observations have still enlightened me on a number of occasions. Probably saved me some money, too.
Jeff and Lindsay
91 Marathon XL -
Lost a long post when I clicked on POST and it said i had to be logged in. Long story short, in the 20+ years that I have been driving a Prevost I had never heard of a DOT brake check (as I suspect is true for every RVer driving coaches with air brakes).
We are now fixed but will return to Prevost to have them install some new air bags and some other issues the Houston Prevost folks apparently glanced over when we came in for a good going over after the purchase.
By the way, I have no history with any posters. Just differing opinions from a couple of us hard headed folks.
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