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Old 09-13-2013, 12:33 PM   #1
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Tire Pressure/Load-Greyhawk

I know your supposed to weigh and check the chart to determine your correct pressure but I'd just like to set it in the ballpark.. its going to change anyway with more or less it your tanks water/fuel. The door label says 75/front 80/rear and that will be for a full load. It's just the two of us ,not towing anything and no levelers... did anyone weigh greyhawk and have any suggestions on air pressure?
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Old 09-13-2013, 12:50 PM   #2
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I always look at what they say on the tire themselves.
You can't go wrong doing it that way.
Tire manufacturers are required by law to mold in the recommended tire pressure on the sidewall.
I just have to get my reading glasses out lol.

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Old 09-13-2013, 01:22 PM   #3
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Yes ,what Doug said.
There seems to be alot of disscusion about tire pressure and weight.
If your trailer and truck have the correct tires,and there should be a lable close to the tounge of the trailer or the door of the truck saying what the correct size and load rate should be,then inflate them to the max pressure when cold which is stamped on every tire.
I've never understood why anyone would run tires under inflated.
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Old 09-13-2013, 01:55 PM   #4
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The sticker on the door jam that JAYCO placed there should have the max airpressure needed when fully loaded. With that said you will be much better off having the coach weighed loaded the way you normally travel and then adjust the tire pressures accordingly. JAYCO had 95 lbs for our SENECA, after I weighed it I was able to go with 85 front and 90 rear using MICHELIN'S pressure chart base on the actual weights. It made for a much softer ride. The pressure listed on the tire is the maximum pressure that tire will take, not what you have to use.
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Old 09-14-2013, 03:57 PM   #5
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I had my Greyhawk weighed, each axle, and found I was overweight. If you are over weigh, no matter what you put in the tires you are over weight. We then took every thing out of the RV, I mean every thing and tried again. According to the sticker we could only add 600 pounds back into the RV. This was after full gas, half tank water and empty Black and grey tanks. Greyhawk has a problem with that. I contacted them with the problem three times and no response. Just promises of "We will get back to you". Right now I am careful and have a good TPMS that I pay attention to. The toad is always full but it can carry more that the RV can. Good Luck
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Old 09-14-2013, 05:19 PM   #6
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I spoke to a Service Advisor at the local Commercial Ford dealer here that is very familiar with Ford chassis based motorhomes. He said that there is a lot of "fudge room" in the GVWR in these units. I was shocked to here that because it is a lot of work to stay within the GVWR. He has been dealing with these motorhomes for years. Tow rating doesn't have much fudge room because of the frame rail extensions.
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Old 09-15-2013, 12:28 AM   #7
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My dealer, for our Redhawk, inflated the rears at 95 and the fronts at 65. This gives a better ride.
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Old 09-15-2013, 08:31 AM   #8
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ID:	9933

that is weird your overweight empty.. it looks like the greyhawk is 7,000+ and you can load 7000+ more ??

Your sticker says you can only add 700lbs?? should be 7,000lbs. something with yours is wrong.
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Old 09-15-2013, 02:47 PM   #9
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The Greyhawk uses Load Range E tires. LR E max (stamped on the tire) pressure is 80-lbs. Simply use Jayco's recommendation on the drivers door jamb, 80 rear, 75 front. I don't know how some folks have time and a place to weigh their axles and adjust air pressure every time the tanks are emptied or full or other weight changes.
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Old 09-15-2013, 03:07 PM   #10
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Quote:
Originally Posted by rosedan View Post
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that is weird your overweight empty.. it looks like the greyhawk is 7,000+ and you can load 7000+ more ??

Your sticker says you can only add 700lbs?? should be 7,000lbs. something with yours is wrong.
A full load of WATER = 700#
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