John Deere JD770 Motor Grader


Dimensions

Overall Length 27.79 ft in (8470 mm)
Width Over Tires 8.01 ft in (2440 mm)
Wheelbase 19.59 ft in (5970 mm)
Tandem Axle Wheelbase 5.06 ft in (1540 mm)
Front Ground Clearance 1.88 ft in (571 mm)
Blade Base 8.93 ft in (2720 mm)
Height To Top Of Isomount Cab 10.5 ft in (3200 mm)

Engine Details

Number Of Cylinders 6
Engine Make John Deere
Power Measured @ 2200 rpm
Torque Measured @ 1400 rpm
Max Power 142 hp (105.9 kw)
Net Power Gears 7-8 142 hp (105.9 kw)
Net Torque Gears 7-8 440 lb ft (596.6 Nm)
Displacement 531 cu in (8.8 L)
Aspiration Turbocharged

Operational Specs

Std Operation Weight – Front Axle 8220 lb (3728.6 kg)
Std Operation Weight – Rear Axle 21625 lb (9809 kg)
Hydraulic System Fluid Capacity 31 gal (117.4 L)
Std Operation Weight – Total 29845 lb (13537.5 kg)
Max Operation Weight – Front Axle 8637 lb (3917.7 kg)
Max Operation Weight – Rear Axle 24992 lb (11336.2 kg)
Max Operation Weight – Total 33559 lb (15222.2 kg)
Oil System Fluid Capacity 5.5 gal (20.8 L)
Fuel Tank Capacity 70 gal (265 L)
Cooling System Fluid Capacity 10 gal (37.9 L)
Circle Gearbox Fluid Capacity 0.8 gal (2.8 L)
Tandem Case Fluid Capacity (Each) 4 gal (15.2 L)
Tire Size 14.00-24
Operating Voltage 24 V

Steering

Articulation Angle 25 degrees
Turning Radius 22.1 ft in (6.8 m)

Transmission

Transmission Type Power Shift
Number Of Gears – Forward 8
Number Of Gears – Reverse 4
Max Speed – Forward 25.1 mph (40.4 km/h)
Max Speed – Reverse 8.6 mph (13.9 km/h)

Front Axle

Wheel Lean 20 degrees
Oscillation – Total 30 degrees
Ground Clearance 1.9 ft in (571 mm)

Moldboard

Moldboard Width 12 ft in (3657.6 mm)
Moldboard Height 24 in (609.6 mm)
Moldboard Thickness 0.9 in (22.4 mm)
Side Shift Left 26.9 in (683 mm)
Side Shift Right 26.9 in (683 mm)

Hydraulic System

Pump Type Closed Center Variable displacement
Pump Flow 57 gal/min (215.8 L/min)
Relief Valve Pressure 2250 psi (15513.2 kPa)

Circle

Diameter 59.1 in (1500 mm)
Rotation 360 degrees
Max Reach Outside Tires – Left 92.2 in (2340 mm)
Max Reach Outside Tires – Right 92.6 in (2350 mm)
Max Lift Above Ground 17.1 in (432 mm)
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