[Archived]

Tire pressures are based on your axle weights.

In my 98
XL I run 105 steer 110 Drive and 90 tag

Fred

[Per]

I run 110 90 100 not for comfort. This allows a little more room for safety and ambient temp fluctuations.

[victor]

Michelin and all tire manufacturers have pressures specified based on the weights the axle carries. the weights consider the best tire performance, protection against failure, handling, tire life and safety such as stopping distance.

But if you decide against what the manufacturers want the pressures to be, at the very least make sure the pressures you select exceed the pressures called for in the charts.

[Archived]

Jon,

Do You have a link to the charts ?

Thanks

[Mike/Lisa]

Rocky,

At the top of the Forum page in the black banner you will see on the far right side a ‘Links” post. Click on that, scroll down about 8 spots and you will see the Prevost Tire Pressure Chart link. Scroll down and follow the directions.

[John]

I want to urge folks to make use of the internet. We have a lot of information on the site, so much so I am not sure any of us knows the scope of information available. But almost every link or information source came from the internet and if we answer a question the odds are almost 100% we googled the question. Some questions are not an emergency so waiting for one of us to respond is not a problem, but if you are in a bind you do not need an answer on this site if you do a search. The reason I mention this is initially digging up information ourselves is not as simple as just googling a question. It takes practice to find the right words to use to quickly get to operating manuals, service manuals, and drawings and diagrams.

Prevost Car has a site with more information than any of us can digest or remember, but if the question relates to the chassis it is a safe bet the answer lies on the Prevost Car site, often under parts and maintenance. Our resources are not limited to this site or Prevost however. We can get very detailed information if we look on the Detroit Diesel site, Allison, Headhunter, Michelin, Bendix, and many many others.

Very often when we make reference to information such as tire pressures we fail to provide links in the response because we assume the topic has been so widely covered everyone knows the information about tire pressures can be found on the Michelin site, in the Prevost Car site, and now I learn on a link on our site.

[Archived]

110 steer, 100 drive, 105 tag. That is based on each tire weight. As John mentioned going over is better then being under. Any tire you put ok n your coach should be able to handle 110+ psi. A stiff ride is much better then a soft ride (and to quote an old John Wayne movie, “that’s what she said”).

[Archived]

105 steer, 90 and 90

[Kevin]

Not a single one of the tire pressures cited above is correct for your coach unless you have weighed each axle and verified it on the charts. But the pressures listed above are all going to help you understand there are variences and those variations are based on the differing axle weights.

[Archived]

I posted this a few days ago in the Videos of Interest section and thought this would backup what Jon stated about having the axles weighed. Please note, I’m not endorsing this specific company, but this is the service I used to determine the individual wheel weights upon purchase and when the coach was fully loaded.

Comments welcomed.

[Harry]

That was very good Andy, thanks for posting it. Does anyone know if Jeff performs that service? While my coach is there I’d love knowing my weights from GVW, tire weights and the pressure for each tire. I’ve read enough to know the importance of it.

Harry

[Doug]

Harry:

Jeff’s lifts have electronic scales for each wheel position. Read the weights for each wheel and deduct 350 pounds from each to compensate for the lift weight. Best to do it when you are fully loaded, your coach that is, and trip-ready. If you spend enough money at Jeff’s he might let you read the weights for free. Not sure.

[Archived]

Harry,

If your bus is on Jeff’s lift, they have digital readouts of the wheel weight. You do have to subtract a number for the weight of the lift.

Jon is dead on, all the weight above are meaningless to Rocky.

[Bernard]

Hi Doug, I remember when Jeff had your coach on the lift, you were showing me how that worked. I recall Jeff telling you while you were checking the left front that the scale was out of calibration. I also appreciate you’re making the distinction of “fully loaded”!

Say hi to Mary for me and of course the big boss Abby. It has to be 4 o’clock somewhere! It’s a family joke! 🙂

Harry

[Kirby]

Agree absolutely that my pressures are for my axle weights. Just posted them to help show the variations in use.