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Three-point hitches are composed of three movable arms. The two lower arms—the hitch lifting arms—are controlled by the hydraulic system, and provide lifting, lowering, and even tilting to the arms. The upper center arm—called the top link—is movable, but is usually not powered by the tractor's hydraulic system.
These Fastrac machines have hydrostatic steering similar to most agricultural tractors with only a hydraulic link between the steering wheels and the front wheels. This limits the maximum speed of these models to 50 km/h (31 mph), except now in Germany where 60 km/h (37 mph) is allowed.
Ford altered the hydraulic design of its postwar tractors to avoid Ferguson's hydraulic system patent, but continued to produce machines equipped with the basic Ferguson hitch arrangement. The postwar Ford 8N, equipped with Ferguson's three-point hitch, became the top-selling tractor of all time in North America.
Case garden tractors came into existence in 1965, after the purchase of Colt Garden Tractors/Colt Equipment in late 1964. The motive behind the acquisition was a revolutionary patented hydraulic drive system. This heavy duty drive system could easily power a wide range of accessories uncommon to tractor owners at that time.
The Farmall 1026 is a row crop tractor with a hydraulic drive system, or hydro, produced by International Harvester from 1970–1971. Rated at 112 power take off, (PTO) horsepower, [1] the Farmall 1026 was the first 100+ horsepower hydro tractor ever produced. The 1026 was produced as a hydro only model.
The R also incorporated live hydraulics. PowrTrol, as it was known, provided the operator the ability to lift equipment by the pull of a lever. A pump powered by the PTO clutch provided 1,800 psi (12 MPa) of hydraulic pressure to a lever controlled valve. At 45 hp (34 kW) at the drawbar and 50 hp (37 kW) at the belt, it was the most fuel ...