Gerald
Forum Replies Created
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was it turned ? off ground? Got to be a just correct position. Bob
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Don’t even think about adjusting air bag pressures to move axle weights around.
Our coaches are essentially DOT certified as commercial vehicles and as such they have to undergo testing to verify compliance. One big part of the standard is braking. For those unaware Prevost has had many variations of the braking systems over the years and more often than not the components used are oddballs. We can rarely walk into a parts store and get parts from inventory. Brake linings are specific in size to each axle. Brake chambers are specific to each axle. The point being if we lighten pressures on the tag axle air bags for example to lighten the steer axle weights, that weight goes to the drive axle. The result is a tag that is underweight and a drive that might be overweight (relatively speaking). All those component sizes are now out of whack if someone is playing with weights.
The ABS on the coach will come into play and a light(er) weight axle will lock up faster than a heavier one so upon impending lockup the ABS starts reducing the brake force. That’s better than a skid or sliding tire, but it is still not as good as a heavier axle that does not have impending lockup.
The only cure for a coach that is overweight on an axle or axles is to reduce weight. Unless and until the marketplace demands that converters built coaches that allow reasonable loading and still be within limits we are going to see coaches that exceed the Prevost limits and that means all items are stressed beyond their design limits.
I think it is ironic that owners give little or no consideration to weight and balance on a vehicle whose braking distances at highway speeds are often greater in length than a football field. We should be demanding converters pay more attention to limits, something that is incredibly difficult to do, but vital.
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Thanks
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Jon is 100%correct. To clarify what I was speaking of : When some grease gets many years old it gets hard. It keeps auto slack adjusters from working. If yours has quit working this may be a place to look. I got problem on the 89(a previous coach) from a previous owner who did not grease at all and what was there was like tar. I forced this old goo out and the adjusters operated correctly. Correct maintance is the key on your coach….. If you do that problem will never happen. When I see a older coach with brake problems it is always one thing that I share. Bob
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Are you sure you need a whole new vent?
Fan-tas-tic is very good with service and support and you can generally replace AND UPGRADE most models without removing the frame itself.
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A friend of mine flew over burns run east a state park off I75 at lake texoma recently and saw units in the 50amp section so they must have opened that part up now. That section was not open when I drove my 36 class A there to check it out last fall but I fit through the small section with no problem. I also stayed at riverbend at the tx ok border off I75 last fall. It overlooks the river and has pull throughs. It was nice but near a train track with occasional trains.
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was between rubber and lower cone/bag housing. I just cut bag in half. You could get lucky and get it to come apart. In a idea world it would!. Bob
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OK, thanks Peter. Now Jon can suck up since you may have mass quantities.
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Tom, wondering about your method of using a quick disconnect instead of the schrader style fill.
Did you make up a double ended male adaptor to join the coach to the airline.
Seems one would need to carry that along so that if you required on the road service, air could be supplied without searching for parts and pieces. I know every time you go to Prevost, standard opp. is to connect to the air system. If they have to make up an adaptor, the clock is ticking.
Just sayin, JIM
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I’m not a generator expert, but your post suggests you have a problem with the voltage regulator on the generator.
I don’t know if you can adjust the voltage on each leg or if the problem requires a replacement of the voltage regulator.
It sounds as though the low output on the one leg drops further when loads are applied so the resultant voltage is below the inverter input requirements.
Perhaps a Vantate expert can help here, but I presume even though all circuits are run through the inverters that does not mean when an outside 120 volt source is available that the inverters are still inverting. I am guessing the inverters are passing through 120 volt power and using that power input to function as chargers. If the loads are heavy such as the 2 ACs, and the inverters are set for high charging current you could have loads heavy enough to pull the incoming generator voltage below the inverter operating range.
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Just reinforcing your post Jim. The items I mentioned were in approximate order of frequency of problems I have been involved with.
Prevost has an excellent webinar on the OTR AC system and it is a great way to spend a little time for background information before calling a tech to service the AC system.
Access the webinar throught the Prevost site, commercial side.
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My 1991 H340 will whistle when it starts to get full warning to slow down. The higher the pitch of the whistle the closer to full.
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Jim,
I did not make myself very clear. It is not an issue of having regrets of getting an H over an XL. It is more of an issue of; do we do it all all, if we do change coaches did we do our homework so we don’t make a mistake, do we really want to spend the money? That type of regrets. If we get another coach it will most likely be the one we retire in and keep until I can no longer drive. We have had the current coach for 8 years come this October, and I see us keeping the next one even longer. So, I am trying to get as informed as possible. I am actually going to look at a 2 slide XLII on Thursday to get a feel for what it looks like, especially the bays. We are very much just in the info gathering stage, and will not actually do anything until after October, or maybe just keep what we have.
I really appreciate all the information everyone is passing on. Hopefully others will benafit from this thread.
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Hi Ace,
I am glad that helped your temps. Now I have to do mine!!!
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thanks Tom and Jon broken wire fixed