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This paper describes a new model loader, it's systems and how their melding produced a much more efficient and productive machine. It discusses in some detail the selected hydraulic system, a closed center load sensing system with both the traditional flow control characteristics and the newer pressure control characteristics, which were utilized to achieve superior swing performance. A new world class loader to bridge the gap between the company's current 88.9 kN (20,000 lb.) lift loader and it's 133.3 kN (30,000 lb.) loader was needed.

This paper describes two particular hydrostatic power-splitting transmission packages (an “input-coupled” planetary and an “output-coupled” hydraulic differential). It discusses their construction, installation in experimental tractors, and resulting performance of each. Peak performance of both was very close, but the “output-coupled” hydraulic differential transmission provided higher operating efficiency over a broader speed range.