Liebherr’s 50-metric ton (mt) PR 766 crawler tractor was designed for power, low emissions, efficiency, driver comfort and durability, the company reported. With operating weights of between 46,200 kilograms (kg) and 54,200 kg, the tractor is the successor model to the PR 764. It is powered by a 310-kilowatt (kW) (422-horsepower) 8-cylinder V-engine that provides a drawbar pull, or pushing force, of 694 kilonewtons (156,017 pounds).
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