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Continuous tracks on a bulldozer A dump truck with continuous track wheels crosses a river and dumps its load in Kanagawa, Japan. An agricultural tractor with rubber tracks, mitigating soil compaction A Russian tracked vehicle designed to operate on snow and swamps A British Army Challenger 1 tank
The D575A-2 SD Super Dozer was the second version of the D575A, going into production alongside the D575A-2 SR Super Ripper beginning in 1995. [3] The D575A-2 SD Super Dozer is an 1,150 horsepower (860 kW), 143,300 kilograms (315,900 lb) dedicated dozer with no ripper. The D575A-2 SD Super Dozer was superseded by the D575A-3 SD Super Dozer.
A variant is the all-wheel-drive wheeled bulldozer, which generally has four large rubber-tired wheels, hydraulically operated articulated steering, and a hydraulically actuated blade mounted forward of the articulation joint. The bulldozer's primary tools are the blade and the ripper:
As early as 1955, a series of prototypes of a heavy wheeled bulldozer were built and tested, which at that time were still known as the MAZ-528. It is not clear exactly when the designation changed to MAZ-538, or why the change was made. However, it is known that the machines were manufactured from 1964 under the name MAZ-538 in series production.
The heavier scraper types have two engines ("tandem powered"), one driving the front wheels, one driving the rear wheels, with engines up to 400 kW (536 hp). Multiple scrapers can work together in a push-pull fashion but this requires a long cut area. Smaller scrapers may be towed by a bulldozer.
B450 / B450 Farmall / B450 4WD Roadless Traction front axle (smaller front wheels)_ B614 B634/B634 4WD (Roadless)/ B-634 County (Equal wheel 4WD) 454(D179 3 cyl eng)/474(D206 4 cyl)/475 (Perkins eng)/574(D239 4 cyl eng)/674(D239 4 cyl eng) - all 2 wheel drive except for approx 25 built in 1977 with Kimco axle. Trans options - Torque Amplifier.
The Dain all-wheel drive was the first tractor produced by John Deere, and had only a single rear wheel. In 1911, Deere purchased the Dain Manufacturing Company of Ottumwa, Iowa. The next year, Deere decided to design its own tractor, and Dain founder, Joseph Dain Sr., was directed to design that tractor.
Each car was driven by four 7.3 foot-tall wheels and tires. The 24-wheel-drive was powered by two 400 horsepower Cummins diesel engines connected to a hub motor. It had a payload capacity of 150 tons, and could traverse nearly any terrain. It had a very successful first season hauling freight to the DEW Line. [3]
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