DEERE 670B MOTOR GRADERS

Technical Description

The John Deere 670B is a heavy-duty motor grader powered by a John Deere 6068T six-cylinder diesel engine rated at 135 SAE net horsepower (101 kW) with 460 lb-ft of torque. The machine features a direct-drive planetary power-shift transmission with eight forward and four reverse speed selections, enabling smooth on-the-go gear changes. Its closed-center hydraulic system utilizes a variable-displacement pump delivering 37.6 gallons per minute at 200 engine RPM, with integral control valve lockouts that eliminate cylinder drift. The 670B measures 27.27 feet in overall length and 7.85 feet in width over tires, with a minimum turning radius of 23 feet. Equipped with hydraulic power frame articulation allowing 25 degrees of articulation on both sides, the grader provides enhanced maneuverability and stability on slopes. Its tandem drive features two-inch pitch chains and foot-operated hydraulic wet-disk power brakes sealed in filtered oil for reliability. The operator-controlled differential lock/unlock system enables maximum traction when locked or improved maneuverability when unlocked. Standard operating weight reaches approximately 29,030 pounds, with typically equipped configurations extending to 35,020 pounds. The moldboard blade features through-hardened Dura-Max steel with manual three-pitch positioning and hydraulic control. Optional scarifier and ripper attachments provide additional grading and material preparation capabilities, making the 670B suitable for road construction, maintenance, and general earthmoving applications.