John Deere 770D Motor Grader

Circle

Blade Tip Angle – Front 42 degrees
Blade Tip Angle – Rear 5 degrees
Diameter 60 in (152 cm)
Max Lift Above Ground 19 in (47 cm)
Max Reach Outside Tires – Left 83 in (210 cm)
Max Reach Outside Tires – Right 82 in (208 cm)
Rotation 360 degrees
Shift Left 31 in (79 cm)
Shift Right 29 in (73 cm)

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 29 ft (9 m)
Tandem Axle Wheelbase 5 ft (2 m)
Wheelbase 20 ft (6 m)
Width Over Tires 8 ft (3 m)

Engine

Aspiration Turbocharged with air-to-air aftercooler
Displacement 494 cu in (8,095 cu cm)
Engine Model 6081H
Max Power 215 hp (160 kw)
Net Power Gear 1-2 165 hp (123 kw)
Net Power Gear 4-6 170 hp (127 kw)
Net Power Gear 5-6 185 hp (138 kw)
Net Power Gears 7-8 215 hp (160 kw)
Net Torque Gears 1-2 691 lbs ft (937 nm)
Net Torque Gears 3-4 738 lbs ft (1,001 nm)
Net Torque Gears 5-6 778 lbs ft (1,055 nm)
Net Torque Gears 7-8 902 lbs ft (1,223 nm)
Number of Cylinders 6
Power Measured @ 2000 rpm
Torque Measured @ 1000 rpm

Front Axle

Ground Clearance 2 ft (1 m)
Oscillation – Total 32 degrees
Wheel Lean 20 degrees

Hydraulic System

Pump Flow 55 gpm (207 lpm)
Pump Type Variable-displacement piston
Relief Valve Pressure 2750 psi

Moldboard

Blade Pull at Max Weight 28,990 lbs (13,150 kg)
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

Alternator Supplied Amperage 100 amps
Circle Gearbox Fluid Capacity 2 gal (6 l)
Cooling System Fluid Capacity 13 gal (49 l)
Fuel Capacity 106 gal (401 l)
Hydraulic System Fluid Capacity 14 gal (53 l)
Max Operation Weight – Front Axle 15,840 lbs (7,185 kg)
Max Operation Weight – Rear Axle 32,159 lbs (14,587 kg)
Max Operation Weight – Total 47,999 lbs (21,772 kg)
Operating Voltage 24 volts
Rear Diff/Final Drive Fluid Capacity 10 gal (36 l)
Std Operation Weight – Front Axle 8,510 lbs (3,860 kg)
Std Operation Weight – Rear Axle 24,160 lbs (10,959 kg)
Std Operation Weight – Total 32,670 lbs (14,819 kg)
Tandem Case Fluid Capacity (each) 20 gal (76 l)
Tire Size 14.00R24 Radial PR
Transmission Fluid Capacity 6 gal (23 l)

Steering System

Articulation Angle 22 degrees
Turning Radius 23 ft (7 m)

Transmission

Max Speed – Forward 26 mph (42 kph)
Max Speed – Reverse 26 mph (42 kph)
Number of Gears – Forward 8
Number of Gears – Reverse 8
Transmission Type Powershift with direct drive
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