Categories ↠ Motor Graders ↠ John Deere JD770

John Deere JD770 Motor Grader

Category: Motor Graders ➔
Manufacturer: John Deere ➔
Model: JD770 ➔

The John Deere JD770 Motor Grader is a powerful and reliable machine designed for heavy-duty grading operations. With a Circle Diameter of 59.1 inches and a Max Lift Above Ground of 17.1 inches, this grader offers precise and efficient performance. Equipped with a Turbocharged engine producing 142 horsepower and 440 lbs-ft of torque, the JD770 ensures optimal power and productivity. Its advanced hydraulic system, ergonomic cab design, and versatile transmission make it a top choice for construction and road maintenance projects. Discover more about the JD770's impressive features and capabilities in the specifications below.

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General Specifications

Circle

Diameter	59 in (150 cm)
Max Lift Above Ground	17 in (43 cm)
Max Reach Outside Tires - Left	92 in (234 cm)
Max Reach Outside Tires - Right	93 in (235 cm)
Rotation	360 degrees

Dimensions

Blade Base	9 ft (3 m)
Front Ground Clearance	2 ft (1 m)
Height to Top of Isomount Cab	11 ft (3 m)
Overall Length	28 ft (8 m)
Tandem Axle Wheelbase	5 ft (2 m)
Wheelbase	20 ft (6 m)
Width Over Tires	8 ft (2 m)

Engine

Aspiration	Turbocharged
Displacement	531 cu in (8,702 cu cm)
Max Power	142 hp (106 kw)
Net Power Gears 7-8	142 hp (106 kw)
Net Torque Gears 7-8	440 lbs ft (597 nm)
Number of Cylinders	6
Power Measured @	2200 rpm
Torque Measured @	1400 rpm

Front Axle

Ground Clearance	2 ft (1 m)
Oscillation - Total	30 degrees
Wheel Lean	20 degrees

Hydraulic System

Pump Flow	57 gpm (216 lpm)
Pump Type	Closed Center Variable displacement
Relief Valve Pressure	2250 psi

Moldboard

Moldboard Height	24 in (61 cm)
Moldboard Thickness	1 in (2 cm)
Moldboard Width	12 ft (4 m)
Side Shift Left	27 in (68 cm)
Side Shift Right	27 in (68 cm)

Operating Specifications

Circle Gearbox Fluid Capacity	1 gal (3 l)
Cooling System Fluid Capacity	10 gal (38 l)
Fuel Capacity	70 gal (265 l)
Hydraulic System Fluid Capacity	31 gal (117 l)
Max Operation Weight - Front Axle	8,637 lbs (3,918 kg)
Max Operation Weight - Rear Axle	24,992 lbs (11,336 kg)
Max Operation Weight - Total	33,559 lbs (15,222 kg)
Oil System Fluid Capacity	6 gal (21 l)
Operating Voltage	24 volts
Std Operation Weight - Front Axle	8,220 lbs (3,729 kg)
Std Operation Weight - Rear Axle	21,625 lbs (9,809 kg)
Std Operation Weight - Total	29,845 lbs (13,537 kg)
Tandem Case Fluid Capacity (each)	4 gal (15 l)
Tire Size	14.00-24

Steering System

Articulation Angle	25 degrees
Turning Radius	22 ft (7 m)

Transmission

Max Speed - Forward	25 mph (40 kph)
Max Speed - Reverse	9 mph (14 kph)
Number of Gears - Forward	8
Number of Gears - Reverse	4
Transmission Type	Power Shift

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