Wheel support system for agricultural sprayer

1. Field of the Invention A wheel support assembly comprising a leg coupled to a wheel and rotatably coupled within a journal, wherein the end of the leg opposite the wheel is provided with a lateral planar surface, and a base plate is provided over the journal with a collar secured to the base plate and having a substantially flat surface is secured around the inner leg with the substantially flat surface provided over the planar surface. The wheel support assembly is also provided with a spring secured to a spring plate and means for rotating the base plate relative to the spring plate.