crop guy
Monroe, Georgia
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Joined: 06/20/2006
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I have asked several different people on the street and keep getting different answers so I'll give yall a try. How much PSI did I need to run in my tires and should they all be the same on my HD36 FS when loaded with 1/2 tank of water, 4 kids, DW, small dog, etc.? The door says 95(?) and the tires say 110(?) I attended part of a tire seminar @ the Rally in Perry, so I realize I should actually go weigh it, but I have NO time.
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dleslie125
Southern Ontario/Palmetto FL in Winter
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Joined: 03/21/2003
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crop guy wrote:I have asked several different people on the street and keep getting different answers so I'll give yall a try. How much PSI did I need to run in my tires and should they all be the same on my HD36 FS when loaded with 1/2 tank of water, 4 kids, DW, small dog, etc.? The door says 95(?) and the tires say 110(?) I attended part of a tire seminar @ the Rally in Perry, so I realize I should actually go weigh it, but I have NO time.
If you can't get it weighed you are going to have to assume a few things. Look at the weight sticker in the MH. It includes a full tank of water. Back off a half tank. Determine how many people are included in the CCC calculation - back off the weight they used. Add in the actually weights of all people and dog. Then make an estimate of the "stuff" you have loaded. Hopefully you will be below the GVWR of 22,000. Now, there is nothing you are going to be able to do about distribution front to rear. So at this pint I'd assume that both axles are loaded to their limits and then look at the Goodyear (if that is what you have on) tire inflation guide for your tire type and size and see what inflation pressures they recommend.
The 95 is likely what is needed or close to what is needed for the tires when the vehicle is at it GVWR. The 110 is the maximum pressure permitted for the tires (cold of course). It is nice to have a decent cushion. Our 04 Journey had tires that had a maximum load equal to the front axle GAWR and often wondered if that was what determined the GAWR.
Don, Bev & Phil
07 Jayco 32SS on Kodiak May 07 Yahoo Kodiak Group
06 HR Amb 40PLQ ISC 330/950 9/05-5/07
04 Winnie Jrny 39W CAT C7 7/04-9/05)
00 Triple E Commander 5/03-5/04
Toad - 07 Tahoe LTZ 12/06 -
04 Colorado Z71 04- 06
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schutt3
Phoenix
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95 psi should work. You need to get it wieghed minimum front axle rear axle. look up the web site for your tire manufactor and find their inflation charts and go by that. Good luck.
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Caseydon
Simonton, Texas
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Joined: 07/27/2001
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Making time to get an RV weighed really just means making a reminder to yourself, to use the next time your trip includes any distance on an interstate. Most full service truck stops have scales. You just drive onto the platform and usually, talk to the attendant just like at McDonalds. Five minutes from the off ramp, you're back on your way.
Until then, the simplest way to estimate tire pressure is to look at the pressures printed on the door post sticker. These assume that each axle is at its GAWR but not over it. Most Class C's, especially the larger ones, are a little under the rated axle weight on the front and close to it but, we hope, not over it on the rear.
Casey
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hopefulbob
Wichita, KS USA
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Joined: 08/05/2003
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Your guess is as good as anyone's guess. If you have NO time to weigh, you will get NO answer to your question, other than the guess of the person responding. (of course you'll get different answers from different people....they're all guessing too!)
ASSUMING that your axles aren't overloaded and the side-to-side weight distribution is even, you can use the 95 psi figure. Is this the case? Who knows? Only the tires know.
You must weigh the loaded coach and then determine the proper tire pressure for each axle on your coach, as you load it, using the tire manufacturer's load/inflation table.
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crop guy
Monroe, Georgia
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I will go with the 95PSI and find a scale on our next adventure. I realize the proper inflation based on the actual weight on the tires is worth the time spent. I have my goodyear chart printed and ready. Since I have never used a scale to weigh a vehicle don't even use the bathroom one  I am assuming that the rig is weighed with just the front wheels on the scale and then pull forward until the front wheels are off the scale to come up with the front and rear axle weights??
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paulin
No. CA
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Joined: 08/28/2003
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Quote:I have my goodyear chart printed and ready.
What Goodyear tires does your MH have? Is the chart you have for that specific tire?
We have Goodyear G107 tires on ours and have not been able to find a chart specific for that tire. Lacking a G07 chart, we have been following the Tire and Rim Association's load/inflation table.
Paul & Linda
2007 Jayco Seneca HD 34SS Duramax
2005 Saturn VUE
"Monty", "Maggie" & "Murphy" the mighty Shih Tzus
FMCA #F375077
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dsteinman
Los Alamos, NM
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Joined: 09/19/2006
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The CAT scale I used had three scales. One for the front axle, one for the rear axle and one for the trailer, toad on our case. Just line up your axles and then you will get a printout with all three weights.
David
2007 Four Winds 34H
2005 Dodge Durango 5.7 Hemi
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dcowley
Texas Panhandle
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Joined: 09/11/2007
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crop guy wrote:I have asked several different people on the street and keep getting different answers so I'll give yall a try. How much PSI did I need to run in my tires and should they all be the same on my HD36 FS when loaded with 1/2 tank of water, 4 kids, DW, small dog, etc.? The door says 95(?) and the tires say 110(?) I attended part of a tire seminar @ the Rally in Perry, so I realize I should actually go weigh it, but I have NO time.
I have been argued with from ride quality to just plain silly answers but as a person who has spent many millions in tires over the last 30 years your best bet whether on a car or RV or a class 8 truck is to air them up to the max psi cold listed on the sidewall of the tire.
You can argue with me and talk about weights and ride comfort but for blow out protection and unltimate tire life. Check them cold, air them up to the max psi listed on the side wall. The proof of this has been in my pocket book and it talks loudly when it comes to tire cost.
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Caseydon
Simonton, Texas
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Joined: 07/27/2001
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dsteinman wrote:The CAT scale I used had three scales. One for the front axle, one for the rear axle and one for the trailer, toad on our case. Just line up your axles and then you will get a printout with all three weights. David
Newer scales are made this way. Just to clarify a bit, it looks like one long platform, but you will see segment lines across it marking the separate scales.
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