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Dozer: The bulldozer blade was a valuable battlefield tool on the WWII M4 Sherman tank. A 1943 field modification added the hydraulic dozer blade from a Caterpillar D8 to a Sherman. The later M1 dozer blade was standardized to fit any Sherman with VVSS suspension and the M1A1 would fit the wider HVSS.
The M728 CEV with an M9 dozer blade assembly and the A-frame crane boom deployed. It is usually equipped with either a hydraulically operated M9 dozer blade assembly or a D7 mine plough. The M9 dozer blade Assembly is used for clearing the way, filling depressions, leveling ground and for other purposes.
The M123 was used to tow semi-trailers carrying MBT's (in conjunction with the M15A1 and later the M747 semi-trailers) superseding the M26(A1) Pacific "Dragon Wagon" and the semi-trailers carrying engineering equipment (in conjunction with the M127 low bed semi-trailers). Variants: M123 had dual winches and high mounted fifth wheel, gasoline engine
The dozer blade on the front of the tractor can come in different varieties: A straight blade ("S-Blade") which is short and has no lateral curve, no side wings, and can be used for fine grading. A universal blade ("U-Blade") which is tall and very curved, and has large side wings to carry more material.
Sometimes, a bulldozer is used to push or pull another piece of earth-moving equipment known as a "scraper" to increase productivity. The towed Fresno Scraper , invented in 1883 by James Porteous , was the first design to enable this to be done economically, removing the soil from an area being cut and depositing where needed as fill .
The US Army then used D9 bulldozers during the Vietnam War to clear forests. Combat use of Caterpillars in Israel stretches back to the Sinai War of 1956, the Six-Day War in 1967, the Yom Kippur ...
Clark initially built 14 operational dozers and conducted extensive tests at their facilities. Once proven, the military ordered 800 more and eventually extended that figure. The War Department worked with Clark Machine over the course of the years 1942 and 1943 ordering many CA-1s by the end of World War 2.
A full range of accessories were offered: front dozer blades with cable or hydraulic lifts, rear ripper blades for breaking virgin bush as farmland in Australia, and a rear logging winch of 30,000 to 50,000 lbf pull. [ii] Production of the VR180 ran from 1952 to 1958, with approximately 1,500 built.
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