JOHN DEERE 670B MOTOR GRADERS

Technical Description

The John Deere 670B Motor Grader features a robust John Deere 6068T six-cylinder turbocharged diesel engine delivering 135 hp (101 kW) at 2300 rpm with 460 lb-ft of torque at 1300 rpm, ensuring reliable power and durability through replaceable wet-type cylinder liners and high-strength alloy heads with valve seat inserts. Its power shift transmission provides 8 forward and 4 reverse speeds, with a maximum forward speed of 24.4 mph and reverse speed of 8.2 mph, enabling versatile operation across various grading tasks. The machine’s blade assembly includes a 12 ft wide moldboard, 24 in height, and 0.9 in thickness, with a circle diameter of 59.9 inches capable of 360-degree rotation, allowing for precise blade tip angles (49° front, 5° rear) and max lateral shifts left/right of approximately 31 in and 28.6 in, respectively. Dimensionally, the grader measures 27.3 ft in overall length, with a wheelbase of 19.6 ft, tandem axle wheelbase of 5.1 ft, and width over tires of 7.9 ft, while maintaining a front ground clearance of 1.9 ft. Its articulated steering system provides a 25° articulation angle and a 22 ft turning radius, enhancing maneuverability on job sites. The hydraulic system, powered by a variable displacement single pump with a flow rate of 37.6 gpm, supports accurate controls of blade and steering functions. Operating weights range up to 33,310 lbs, with a fuel capacity of 70 gallons and a 24-volt electrical system. Tire size is 13.00-25, suitable for demanding terrain and stability during grading operations.