JOHN DEERE 770AH MOTOR GRADERS

Technical Description

The John Deere 770AH Motor Grader is a robust, high-performance machine designed for demanding grading applications. Powered by a turbocharged and intercooled 6-cylinder 6-466A diesel engine with a displacement of 466 cubic inches, it delivers up to 180 horsepower at 2200 rpm and 537 lb-ft of torque at 1400 rpm, with variable power output across gears for optimal efficiency. The grader features an 8-speed forward and 4-speed reverse power shift transmission, enabling a top forward speed of 25.1 mph and a reverse speed of 8.6 mph. Its hydraulic system utilizes a closed center variable displacement pump with a flow rate of 36 gpm, supporting precise blade control. The circle offers a 360-degree rotation, 44-degree front and 10-degree rear blade tip angles, and a maximum lift of 17.1 inches above ground. The moldboard is 12 feet wide, 24 inches high, and 0.9 inches thick, with side shift capabilities of 26.9 inches left and right. The machine has a total operating weight of 33,849 lbs, a 27.8-foot overall length, and a 22-foot turning radius, with a 25-degree articulation angle for enhanced maneuverability. Standard equipment includes a 70-gallon fuel tank, 31-gallon hydraulic fluid capacity, and 24-volt electrical system.