US Patent 9359021 Configuration of a two-track tractor

An agricultural tractor includes a pair of track assemblies including rubber treads with track bars, a front wheel assembly and a controller. The track assemblies are interconnected by respective front and rear axles extending substantially perpendicular to a direction of travel. The controller automatically controls a load imposed on the front wheel assembly in order to control the load imposed at the front axle of the track assemblies to minimize rubber tread wear.