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Old 12-04-2014, 09:47 AM   #1
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Tire pressure

A good tire pressure cold for a 40' travel supreme (no tag)

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Old 12-04-2014, 10:56 AM   #2
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Originally Posted by silver cloud View Post
A good tire pressure cold for a 40' travel supreme (no tag)
Best to weigh your coach, then go to your tire manufacturers web site and inflate your tires to the recommended pressure shown on their load inflation chart that safely supports the weight of your coach.

Best of luck and safe travels.....

Jim & SherrySeward

2000 Residency 3790 v10 w/tags 5 Star tune & Banks system Suzuki XL7 toad
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Old 12-04-2014, 10:58 AM   #3
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Without knowing the weight of the coach, the safest pressure is the max allowed for the tire.
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Old 12-04-2014, 11:13 AM   #4
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Best is to corner weigh your coach if possible and inflate the tires on each axle for the highest weight on the axle.

There should be a tire size and pressure placard somewhere in your coach. This is the manufacturers estimate of the tire pressure for your coach when it is loaded to the maximum recommended weight of the coach.

The max pressure will be fine but may give you a harsher ride than you need if you are not near the capacity of the tires.
Gordon and Janet
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Old 12-04-2014, 11:23 AM   #5
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there is a tech sheet affixed to somewhere in your coach. some on the wall below the window at driver side, some on back of a cabinet door in bathroom... the tech sheet will have the recommended tire pressures for your specific coach. if you don't want to do a 4 corner weigh, this is probably the closest numbers you can get.
2000 Country Coach Intrigue 40', ISC 350
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Old 12-04-2014, 05:18 PM   #6
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x2 what CountryFit said. Per federal law, there is an RV manufacturers recommended tire psi (front and rear) posted in the coach near the driver seat, so use it. Don't deviate from that unless and until you get the coach weighed (axle by axle or wheel by wheel) and can look up accurate pressures in the tire makers inflation tables.

You cannot use somebody else's "good" tire pressure. It's far to dangerous to even consider that.
Gary Brinck
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Old 12-04-2014, 08:57 PM   #7
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Keep in mind tire load/inflation charts show the minimum acceptable pressure for the corresponding load. Use the RV placard tire pressure. You'll get better tire wear, crisper handling, and be confident you are not overloading your tires, which is the primary reason for tire failures.
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member,FMCA."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution. "Abraham Lincoln"
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Old 12-08-2014, 08:06 PM   #8
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I have over 30 posts on proper tire inflation on my blog.

Retired Design & Quality Tire Eng. Read my tire blog RVTireSafety.NET to learn more about RV tires, valves & wheels. Read THIS post on why Tires Fail
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