This SAE Recommended Practice is established for the purpose of providing average weight values for water or calcium chloride liquid filling solutions in SAE recommended drive tire sizes. It is recommended that tires be filled to valve stem level while the valve is located in the highest position (see Tables 1A and 1B).
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 MAY59. 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.