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The John Deere Gator is a family of small all-terrain utility vehicles produced by the John Deere Corporation. Gators typically feature a box bed, similar in function to a pickup truck. The bed can also be installed as an electric dump body. The John Deere Gator has been made in a variety of configurations, with either four, five or six wheels. [1]
The John Deere 4020 was an agricultural tractor model made by John Deere from 1964 to 1972. It replaced the nearly identical 4010 that had been introduced with Deere's New Generation series in 1960 and offered a number of improvements over the previous model including more horsepower, heavier rear axles, and a differential lock .
John Deere 520. From 1957 the 50 was replaced by the John Deere 520. with new styling. Power output was increased 20%, with a new two-cylinder engine, to the point that the 520 could work three plows. Only row-crop versions were produced, with the same fuels as the 50. [2] [9] [10]
The Braine steering gear was a fine-tuned system of quadrant on the rudder stock driven by the tension of the mainsail sheet and damped by a rubber band. A more sophisticated system called the vane gear was later devised, it relied on a small vane or airfoil driving the main rudder via an adjustable system
The differential pressure between the two sides of the vane gives rise to an unbalanced force and thus a torque on the output shaft. [2] Vane actuators require a number of sliding seals and the joints between these seals have tended to cause more problems with leakage than for the piston and cylinder type.
The M was the second John Deere tractor to use a vertical two-cylinder engine, after the LA, but the first to with a square bore to stroke ratio of 4.0 in × 4.0 in (102 mm × 102 mm) 100.5 cu in (1.6 L) with a high row crop.
A critical element in vane pump design is how the vanes are pushed into contact with the pump housing, and how the vane tips are machined at this very point. Several type of "lip" designs are used, and the main objective is to provide a tight seal between the inside of the housing and the vane, and at the same time to minimize wear and metal-to ...
The A was produced in a wide variety of versions for special-purpose cultivation. It received a styling upgrade in 1939 and electric starting in 1947. With the advent of John Deere's numerical model numbering system, the A became the John Deere 60, and later the 620 and 630, 3010, 3020, 4030, 4040, 4050, 4055, and ended with the 7610. [1]