John Deere 770D motor grader is a heavy-duty road construction machine designed for grading, leveling, ditching, and surface finishing. Built for municipal, highway, and site preparation work, the 770D uses a diesel powertrain and articulated frame for controlled blade positioning and maneuverability. It is equipped with a moldboard, circle, and front axle arrangement suited to maintaining roads and shaping material. The model is part of John Deere's grader lineup and is commonly used in earthmoving and maintenance applications. Specifications may vary by configuration, year, and regional market.
Circle
John Deere 770D Motor Grader Circle specifications
Blade Tip Angle - Front
42 degrees
Blade Tip Angle - Rear
5 degrees
Diameter
59.90 in (152.15 cm)
Max Lift Above Ground
18.60 in (47.24 cm)
Max Reach Outside Tires - Left
82.70 in (210.06 cm)
Max Reach Outside Tires - Right
81.90 in (208.03 cm)
Rotation
360 degrees
Shift Left
31.00 in (78.74 cm)
Shift Right
28.60 in (72.64 cm)
Dimensions
John Deere 770D Motor Grader Dimensions specifications
Blade Base
8.50 ft (2.59 m)
Front Ground Clearance
2.10 ft (0.64 m)
Height to Top of Isomount Cab
10.50 ft (3.20 m)
Overall Length
28.90 ft (8.81 m)
Tandem Axle Wheelbase
5.10 ft (1.55 m)
Wheelbase
20.10 ft (6.13 m)
Width Over Tires
8.30 ft (2.53 m)
Engine
John Deere 770D Motor Grader Engine specifications
Aspiration
Turbocharged with air-to-air aftercooler
Displacement
494.00 cu in (8,095.23 cu cm)
Engine Model
6081H
Max Power
215.00 hp (160.33 kw)
Net Power Gear 1-2
165.00 hp (123.04 kw)
Net Power Gear 4-6
170.00 hp (126.77 kw)
Net Power Gear 5-6
185.00 hp (137.96 kw)
Net Power Gears 7-8
215.00 hp (160.33 kw)
Net Torque Gears 1-2
691.00 lbs ft (936.86 nm)
Net Torque Gears 3-4
738.00 lbs ft (1,000.58 nm)
Net Torque Gears 5-6
778.00 lbs ft (1,054.81 nm)
Net Torque Gears 7-8
902.00 lbs ft (1,222.93 nm)
Number of Cylinders
6
Power Measured @
2000 rpm
Torque Measured @
1000 rpm
Front Axle
John Deere 770D Motor Grader Front Axle specifications
Ground Clearance
2.10 ft (0.64 m)
Oscillation - Total
32 degrees
Wheel Lean
20 degrees
Hydraulic System
John Deere 770D Motor Grader Hydraulic System specifications
Pump Flow
54.70 gpm (207.04 lpm)
Pump Type
Variable-displacement piston
Relief Valve Pressure
2750 psi
Moldboard
John Deere 770D Motor Grader Moldboard specifications
Blade Pull at Max Weight
28,990.00 lbs (13,149.66 kg)
Moldboard Height
24.10 in (61.21 cm)
Moldboard Thickness
0.90 in (2.29 cm)
Moldboard Width
12.10 ft (3.69 m)
Side Shift Left
26.80 in (68.07 cm)
Side Shift Right
26.80 in (68.07 cm)
Operating Specifications
John Deere 770D Motor Grader Operating Specifications specifications
Alternator Supplied Amperage
100 amps
Circle Gearbox Fluid Capacity
1.50 gal (5.68 l)
Cooling System Fluid Capacity
13.00 gal (49.21 l)
Fuel Capacity
106.00 gal (401.21 l)
Hydraulic System Fluid Capacity
14.00 gal (52.99 l)
Max Operation Weight - Front Axle
15,840.30 lbs (7,185.05 kg)
Max Operation Weight - Rear Axle
32,158.90 lbs (14,587.05 kg)
Max Operation Weight - Total
47,999.10 lbs (21,772.05 kg)
Operating Voltage
24 volts
Rear Diff/Final Drive Fluid Capacity
9.50 gal (35.96 l)
Std Operation Weight - Front Axle
8,510.00 lbs (3,860.08 kg)
Std Operation Weight - Rear Axle
24,160.00 lbs (10,958.81 kg)
Std Operation Weight - Total
32,670.00 lbs (14,818.88 kg)
Tandem Case Fluid Capacity (each)
20.00 gal (75.70 l)
Tire Size
14.00R24 Radial PR
Transmission Fluid Capacity
6.00 gal (22.71 l)
Steering System
John Deere 770D Motor Grader Steering System specifications
Articulation Angle
22 degrees
Turning Radius
23.00 ft (7.01 m)
Transmission
John Deere 770D Motor Grader Transmission specifications
Max Speed - Forward
25.90 mph (41.68 kph)
Max Speed - Reverse
25.90 mph (41.68 kph)
Number of Gears - Forward
8
Number of Gears - Reverse
8
Transmission Type
Powershift with direct drive
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