John Deere 770CH Motor Grader

Dimensions

Overall Length 28.25 ft in (8610 mm)
Width Over Tires 8.24 ft in (2510 mm)
Wheelbase 19.59 ft in (5970 mm)
Tandem Axle Wheelbase 5.06 ft in (1540 mm)
Front Ground Clearance 2.1 ft in (638 mm)
Blade Base 8.76 ft in (2670 mm)
Height To Top Of Isomount Cab 10.24 ft in (3120 mm)

Engine Details

Number Of Cylinders 6
Net Power Gear 4-6 185 hp (138 kw)
Engine Make John Deere
Engine Model 6081H
Net Power Gear 1-2 165 hp (123.1 kw)
Power Measured @ 1900 rpm
Net Power Gear 5-6 205 hp (152.9 kw)
Torque Measured @ 900 rpm
Max Power 205 hp (152.9 kw)
Net Power Gears 7-8 205 hp (152.9 kw)
Net Torque Gears 1-2 570 lb ft (772.9 Nm)
Net Torque Gears 3-4 680 lb ft (922 Nm)
Net Torque Gears 5-6 682 lb ft (924.7 Nm)
Net Torque Gears 7-8 682 lb ft (924.7 Nm)
Displacement 494 cu in (8.1 L)
Aspiration Turbocharged with Aftercooler

Operational Specs

Std Operation Weight – Front Axle 8790 lb (3987.1 kg)
Std Operation Weight – Rear Axle 22710 lb (10301.1 kg)
Hydraulic System Fluid Capacity 15.6 gal (59 L)
Std Operation Weight – Total 31500 lb (14288.2 kg)
Max Operation Weight – Front Axle 9910 lb (4495.2 kg)
Max Operation Weight – Rear Axle 26320 lb (11938.6 kg)
Oil System Fluid Capacity 7.7 gal (29 L)
Max Operation Weight – Total 36230 lb (16433.7 kg)
Fuel Tank Capacity 106 gal (401.3 L)
Cooling System Fluid Capacity 12 gal (45.5 L)
Transmission Fluid Capacity 10.1 gal (38 L)
Rear Diff/Final Drive Fluid Capacity 9.5 gal (36 L)
Circle Gearbox Fluid Capacity 1.1 gal (3.8 L)
Tandem Case Fluid Capacity (Each) 19.9 gal (75 L)
Tire Size 14.00-24
Operating Voltage 24 V
Alternator Supplied Amperage 55 amps

Steering

Articulation Angle 25 degrees
Turning Radius 22 ft in (6.7 m)

Transmission

Transmission Type Power Shift
Number Of Gears – Forward 8
Number Of Gears – Reverse 8
Max Speed – Forward 25.8 mph (41.6 km/h)
Max Speed – Reverse 25.8 mph (41.6 km/h)

Front Axle

Wheel Lean 20 degrees
Oscillation – Total 32 degrees
Ground Clearance 2.1 ft in (638 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)
Blade Pull At Max Weight 27990 lb (12696.1 kg)

Hydraulic System

Pump Type Closed Center Variable displacement
Pump Flow 54.7 gal/min (207.1 L/min)
Relief Valve Pressure 2550 psi (17581.7 kPa)

Circle

Diameter 59.9 in (1520 mm)
Rotation 360 degrees
Shift Left 31 in (787 mm)
Shift Right 28.6 in (724 mm)
Max Reach Outside Tires – Left 85.1 in (2160 mm)
Max Reach Outside Tires – Right 83.1 in (2110 mm)
Max Lift Above Ground 18.6 in (470 mm)
Blade Tip Angle – Front 49 degrees
Blade Tip Angle – Rear 5 degrees
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