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Archive for October 8th, 2008
tire inflation 1
Posted by James from Artesia, NM, US on October 8, 2008
I run several different brands of tires and several different trailer. The dilemma I face is that one brand of tires will recommend 120 pounds and another will recommend 105 while the trailer will recommend 110. I have always used the pressure recommended that is embossed on the side of the tire. Which would be the more correct? Also, since most of my trailers are fairly old they recommend 10X20 tires and I have converted everything to 11RX 22.5
The tire pressure required is dependent on the load being carried. If your loads very, it is best to set inflation pressures for your heaviest loads. You can use the tables in our engineering data book to determine the inflation pressure required. Our data book can be found here http://www.goodyear.com/truck/support/publications.html
divide the total load on the trailer tires by the number of tires that are carrying the load. Look up the load (in pounds) carried by each tire for the 11R22.5 size. Sometimes (not often) the pressure required is within the capabilities of the tire (less than the max load shown on the sidewall) but greater than the rating for the wheel or rim. It's a good idea to check the maximum inflation pressure allowed by the wheel.