CHAMPION 740 MOTOR GRADERS

Technical Description

The 1979 Champion 740 Motor Grader is a robust, rigid-frame machine designed for heavy-duty grading applications. It measures 27 ft 4 in in overall length, 8 ft 0 in in width over tires, and stands 11 ft 0 in tall to the top of the cab, with an operating weight of 27,822 lbs. Powered by a Caterpillar 3306 six-cylinder diesel engine, it delivers 150 hp and features a displacement of 638 cu in, with a bore of 4.1 in and stroke of 5.0 in. The engine is supported by a 75-gallon fuel tank, 7.7-gallon oil capacity, 18-gallon hydraulic system, and 12.5-gallon cooling system. The grader is equipped with 14×24 10PR tires and a 24-volt electrical system with a 40-amp alternator. The wheelbase is 19.4 ft, with a tandem axle wheelbase of 5 ft. The 12 ft wide, 24 in high moldboard offers a maximum depth of cut of 17.2 in, side shift of 26 in left and right, and a 360-degree circle rotation. The circle diameter is 60.2 in, with side shift of 25.6 in left and 20.5 in right. Maximum blade lift above ground is 18.3 in. The front axle provides 2 ft ground clearance, 18 degrees wheel lean, and 32 degrees oscillation. The outside turning radius is 24 ft, and the maximum travel speed is 25.5 mph. Steering articulation is 50 degrees left/right, with a direct drive power shift transmission. The engine delivers a torque rise of 40-46% and a maximum torque of 656-660 lbf-ft.