- Category: Motor Graders ➔
- Manufacturer: John Deere ➔
- Model: 770AH ➔
The John Deere 770AH Motor Grader is a robust and reliable piece of equipment designed for heavy-duty grading and earthmoving tasks. With a powerful 180 HP engine and a range of operational specifications, including a 12-foot wide moldboard and a maximum operating weight of 33,849 lbs, this motor grader is equipped to handle a variety of jobs with ease and efficiency. From its turbocharged engine to its variable displacement hydraulic system, the 770AH is a versatile and capable machine for any construction or road maintenance project.
General Specifications
Circle
Blade Tip Angle - Front | 44 degrees
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Blade Tip Angle - Rear | 10 degrees
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Diameter | 59 in (150 cm)
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Max Lift Above Ground | 17 in (43 cm)
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Max Reach Outside Tires - Left | 90 in (228 cm)
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Max Reach Outside Tires - Right | 89 in (225 cm)
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Rotation | 360 degrees
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Shift Left | 34 in (85 cm)
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Shift Right | 32 in (82 cm)
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Dimensions
Blade Base | 9 ft (3 m)
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Front Ground Clearance | 2 ft (1 m)
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Height to Top of Isomount Cab | 11 ft (3 m)
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Overall Length | 28 ft (8 m)
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Tandem Axle Wheelbase | 5 ft (2 m)
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Wheelbase | 20 ft (6 m)
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Width Over Tires | 8 ft (2 m)
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Engine
Aspiration | Turbocharged with Intercooler
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Displacement | 466 cu in (7,636 cu cm)
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Engine Model | 6-466A
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Max Power | 180 hp (134 kw)
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Net Power Gear 1-2 | 155 hp (116 kw)
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Net Power Gear 4-6 | 180 hp (134 kw)
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Net Power Gear 5-6 | 180 hp (134 kw)
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Net Power Gears 7-8 | 180 hp (134 kw)
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Net Torque Gears 7-8 | 537 lbs ft (728 nm)
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Number of Cylinders | 6
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Power Measured @ | 2200 rpm
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Torque Measured @ | 1400 rpm
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Front Axle
Ground Clearance | 2 ft (1 m)
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Oscillation - Total | 30 degrees
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Wheel Lean | 20 degrees
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Hydraulic System
Pump Flow | 36 gpm (136 lpm)
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Pump Type | Closed Center Variable Displacement
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Moldboard
Moldboard Height | 24 in (61 cm)
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Moldboard Thickness | 1 in (2 cm)
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Moldboard Width | 12 ft (4 m)
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Side Shift Left | 27 in (68 cm)
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Side Shift Right | 27 in (68 cm)
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Operating Specifications
Alternator Supplied Amperage | 42 amps
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Circle Gearbox Fluid Capacity | 1 gal (4 l)
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Cooling System Fluid Capacity | 7 gal (26 l)
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Fuel Capacity | 70 gal (265 l)
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Hydraulic System Fluid Capacity | 31 gal (117 l)
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Max Operation Weight - Front Axle | 9,091 lbs (4,124 kg)
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Max Operation Weight - Rear Axle | 24,758 lbs (11,230 kg)
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Max Operation Weight - Total | 33,849 lbs (15,354 kg)
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Oil System Fluid Capacity | 5 gal (19 l)
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Operating Voltage | 24 volts
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Std Operation Weight - Front Axle | 8,548 lbs (3,877 kg)
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Std Operation Weight - Rear Axle | 21,712 lbs (9,848 kg)
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Std Operation Weight - Total | 30,260 lbs (13,726 kg)
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Tandem Case Fluid Capacity (each) | 5 gal (19 l)
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Tire Size | 14
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Steering System
Articulation Angle | 25 degrees
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Turning Radius | 22 ft (7 m)
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Transmission
Max Speed - Forward | 25 mph (40 kph)
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Max Speed - Reverse | 9 mph (14 kph)
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Number of Gears - Forward | 8
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Number of Gears - Reverse | 4
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Transmission Type | Power Shift
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