John Deere 770CH Motor Grader

Circle

Blade Tip Angle – Front 49 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 85 in (216 cm)
Max Reach Outside Tires – Right 83 in (211 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 10 ft (3 m)
Overall Length 28 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 Aftercooler
Displacement 494 cu in (8,095 cu cm)
Engine Model 6081H
Max Power 205 hp (153 kw)
Net Power Gear 1-2 165 hp (123 kw)
Net Power Gear 4-6 185 hp (138 kw)
Net Power Gear 5-6 205 hp (153 kw)
Net Power Gears 7-8 205 hp (153 kw)
Net Torque Gears 1-2 570 lbs ft (773 nm)
Net Torque Gears 3-4 680 lbs ft (922 nm)
Net Torque Gears 5-6 682 lbs ft (925 nm)
Net Torque Gears 7-8 682 lbs ft (925 nm)
Number of Cylinders 6
Power Measured @ 1900 rpm
Torque Measured @ 900 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 Closed Center Variable displacement
Relief Valve Pressure 2550 psi

Moldboard

Blade Pull at Max Weight 27,990 lbs (12,696 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 55 amps
Circle Gearbox Fluid Capacity 1 gal (4 l)
Cooling System Fluid Capacity 12 gal (45 l)
Fuel Capacity 106 gal (401 l)
Hydraulic System Fluid Capacity 16 gal (59 l)
Max Operation Weight – Front Axle 9,910 lbs (4,495 kg)
Max Operation Weight – Rear Axle 26,320 lbs (11,939 kg)
Max Operation Weight – Total 36,230 lbs (16,434 kg)
Oil System Fluid Capacity 8 gal (29 l)
Operating Voltage 24 volts
Rear Diff/Final Drive Fluid Capacity 10 gal (36 l)
Std Operation Weight – Front Axle 8,790 lbs (3,987 kg)
Std Operation Weight – Rear Axle 22,710 lbs (10,301 kg)
Std Operation Weight – Total 31,500 lbs (14,288 kg)
Tandem Case Fluid Capacity (each) 20 gal (75 l)
Tire Size 14.00-24
Transmission Fluid Capacity 10 gal (38 l)

Steering System

Articulation Angle 25 degrees
Turning Radius 22 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 Power Shift
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