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Old 02-27-2012, 12:44 PM   #1
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Getting the weight on my RV

Glen B 2005 Fleetwood Expedition 38N 300 Cat..Have a shell in the area that has scales. Looks like I can get axle weight not each tire location. I assume that will help me with getting the right air pressure setting? If I am getting this weight do I hook up the 2006 CRV? I was going to just take the RV with all fluids, food, clothes etc that we would normally travel with. First time to do this....tks glen
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Old 02-27-2012, 12:50 PM   #2
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Yes, get each axle weight and then look at your tire manufacturer's inflation tables and fill according to those.

You CAN get a four corner weight if you can find a scales that doesn't have posts around the scale area. Otherwise, there is an outfit called SmartWeigh (run by Escapees now, I believe)that sets up at rallies and in between rallies at the Escapees Park in Livingston, TX.

No reason to take the toad if you're towing 4 down.
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Old 02-27-2012, 01:31 PM   #3
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I prefer the 4 corner weighing method. It not only gives you a more accurate weight picture, it will also give you some idea if you are loading the RV with a good side to side balance. You can be within axle limits while being over weight on one of the corners of the same axle. Bob
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Old 02-27-2012, 01:34 PM   #4
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While four corner weights are ideal, getting each axle weighed will put you 90% of the way home.

Rick
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Old 02-27-2012, 08:37 PM   #5
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If you only have axle weights, don't just divide by 2 (4 for the rear axle) to get tire loads. It is common for one end of the axle to be heavier than the other (RV not balanced perfectly), so be sure to add a fudge factor for that possibility. I usually add in about 10% of the axle weight after doing the division, to make sure I have enough pressure. You could also just go up one entry on the pressure table, so that you are inflating for a bit more weight than indicated.
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Old 02-27-2012, 08:49 PM   #6
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While four corner weights are ideal, getting each axle weighed will put you 90% of the way home.

Rick
X2, and also agree the toad is not going to affect what you're doing/axle weights.
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Old 02-27-2012, 09:15 PM   #7
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X2, and also agree the toad is not going to affect what you're doing/axle weights.
X3 finding a place to get individual weights is not easy.
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Old 02-27-2012, 09:34 PM   #8
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We were at a Rally in Creede CO had our MH weighted and was amazed the weights were as good as they were. Tiffin Phaeton is really hard to balance so I figured the right rear was going to be out of sight.
The Couple that did the weighting was Tom & Lonnie the Co. is Weight To Go
You might give them a call 916-217-9416 and get their schedule as they travel all over.

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Old 02-27-2012, 11:44 PM   #9
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I've used CAT scales at four different locations over the past year to obtain four corner weights, with good success. Find CAT scales with a flat apron on the side of the platforms. Weigh once with all four corners on the back two platforms. Ask for a reweigh, back off and pull back on with one side tires on the apron next to the platform. A little math and you will have four corner weights. I was usually charged $8.50 for the first weigh, and $1.00 for the reweigh. Hope this helps.
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Old 02-28-2012, 09:09 AM   #10
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Just like when you buy a drill bit, you don't really want the bit, you want the hole that the bit will produce. When weighing a coach, most people don't really care what their rig weighs, but wants to know how much air pressure is needed in order to have the correct air pressure to provide a flat footprint, which provides the best safety, and longest wear pattern, and that can be provided with a piece of chalk! Air up the tire to manufactures recommended pressure and then make a chalk line straight across the tire's thread. Now drive a couple of miles, stop, look at the chalk line. If the line is completely gone, congratulations, tire pressure is optimal for that tire. If the is chalk is visible at the edges, tire is over inflated. If chalk line is seen only at center portion of the tire, it is under inflated. When I use this procedure, I use three lines on the tire one third of the way around so as to provide easier observance. Ed
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Old 02-28-2012, 01:00 PM   #11
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I kinda like ed's method, will probably try it.

Tire pressure is a common topic, lots of threads, some even kinda heated.

3 facts worth k.nowing:

The pressure on the tires sidewall is the minimum pressure needed to carry the tires maximum load rating.

A tires with higher air pressure will handle better, and be less bothered by wind gusts, passing semi's, and "tail wagging the dog" syndrome.

Lower pressure will give a smoother ride, but also more sway.
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Old 02-28-2012, 04:31 PM   #12
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:

The pressure on the tires sidewall is the minimum pressure needed to carry the tires maximum load rating.

.
Uh...that didn't sound right. My tires say: Max load .....lbs. followed by Max PSI ... Same on the VW Beetle and the Jeep...or am I missing something? Bob
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Old 02-28-2012, 05:26 PM   #13
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The info on the sidewall will say that your tire will be able to carry X lbs of weight MAX at X lbs of pressure. EG; the tire sidewall is rated to carry 10,000# of weight at 120# of pressure opr max weight at max pressure. If you are carrying 110# instead of 120#,then your tire capacity will diminish to mebbee 9,500#.
The best thing would be to go to here, www.michelinrvtires.com/assets/pdf/RVTiresBrochure.pdf
It tells you how to weigh your rig,how to figger the correct tire and the carrying capacity of your tires at weight.
I have a different one that I got at Camp Freightliner,but I'm going to try to get this one too as it seems to have more info in it.
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Old 02-28-2012, 05:42 PM   #14
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Quote:
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....
3 facts worth k.nowing:

The pressure on the tires sidewall is the minimum pressure needed to carry the tires maximum load rating.

A tires with higher air pressure will handle better, and be less bothered by wind gusts, passing semi's, and "tail wagging the dog" syndrome.

Lower pressure will give a smoother ride, but also more sway.
The "facts" stated above are misleading.

Item 1 is completely clarified by this post Tire pressure?

Item 2, 3 - A CORRECTLY inflated tire (based on manufacturer inflation tables) will ride better, longer, higher traction, etc....
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