The John Deere JD670 Motor Grader is a robust, articulated-frame machine designed for heavy-duty grading applications. It features a turbocharged, 6-cylinder diesel engine with a displacement of 414 cu in, delivering 125 hp (93 kW) at 2300 rpm and 372 lb-ft of torque at 1300 rpm. The grader is equipped with a power shift transmission offering 8 forward and 4 reverse gears, enabling a maximum forward speed of 23.9 mph and reverse speed of 7.6 mph. The hydraulic system utilizes a closed-center, variable-displacement pump with a flow rate of 35 gpm and a relief valve pressure of 2250 psi, ensuring responsive and efficient operation. The 12 ft moldboard has a height of 24 in and a thickness of 0.9 in, with a 35° front blade tip angle and 360° circle rotation for versatile grading. The articulated frame steering provides a 25° articulation angle and a 22.1 ft turning radius, enhancing maneuverability. The machine’s dimensions include an overall length of 27.3 ft, a wheelbase of 19.6 ft, and a width over tires of 7.7 ft. Standard operating weight is 25,830 lbs, with a maximum operating weight of 29,444 lbs. The JD670 is equipped with 13.00-24 tires, a 60 gal fuel tank, and a 24-volt electrical system, making it well-suited for demanding construction and road maintenance tasks.