SAE J709-1977 Agricultural Tractor Tire Loadings, Torque Factors, and Inflation Pressures, Standard; May 1977 (ASAE S295.2); Formerly referred to as J709D
This SAE Standard establishes loadings, tangential pull values, and inflation pressure relationships for tire sizes and ply ratings currently used on agricultural tractors. Primary purpose of this recommendation is for use with SAE J708 (May, 1959). The performance of the tractor is materially affected by tire loadings, tire tangential pull values, and inflation pressure; therefore, it becomes desirable to publish this information.
1977SAE J709-1977 Agricultural Tractor Tire Loadings, Torque Factors, and Inflation Pressures, Standard; May 1977 (ASAE S295.2); Formerly referred to as J709D