Komatsu GD825A-2 Motor Grader

Blades

Maximum lift above ground 1 ft (0 m)
Maximum shoulder reach outside rear tyres (frame straight): Left 8 ft (2 m)
Maximum shoulder reach outside rear tyres (frame straight): Right 8 ft (2 m)

Capacities

Final Drive 17 gal (63 l)
Fuel Tank – diesel 132 gal (500 l)
Tandem Housing 50 gal (190 l)
Transmission 7 gal (25 l)

Circle

Blade Tip Angle – Front 49 degrees
Blade Tip Angle – Rear 5 degrees
Diameter 70 in (178 cm)
Max Lift Above Ground 19 in (48 cm)
Max Reach Outside Tires – Left 94 in (239 cm)
Max Reach Outside Tires – Right 94 in (239 cm)
Rotation 360 degrees

Dimensions

Blade Base 10 ft (3 m)
Height to Top of Isomount Cab 12 ft (4 m)
Minimum turning radius 26 ft (8 m)
Overall Length 33 ft (10 m)
Tandem Axle Wheelbase 6 ft (2 m)
Wheelbase 23 ft (7 m)
Width Over Tires 11 ft (3 m)

Engine

Aspiration Turbocharged Diesel engine
Displacement 359 cu in (5,883 cu cm)
Engine Model S6D140E
Max Power 280 hp (209 kw)
Net Power Gears 7-8 280 hp (209 kw)
Number of Cylinders 6
Piston displacement 408 cu in (6,691 cu cm)
Power Measured @ 2100 rpm

Frame

Front Frame Structure – Height 1 ft (0 m)
Front Frame Structure – Width 1 ft (0 m)

Front Axle

Ground Clearance 2 ft (1 m)
Oscillation – Total 32 degrees
Wheel Lean 14.5 degrees

Hydraulic System

Pump Type Double-acting piston-type hydraulic cylinders
Relief Valve Pressure 3560 psi

Moldboard

Blade Pull at Max Weight 30,250 lbs (13,721 kg)
Max Depth of Cut 19 in (48 cm)
Moldboard Height 31 in (79 cm)
Moldboard Thickness 1 in (3 cm)
Moldboard Width 16 ft (5 m)

Operating Specifications

Alternator Supplied Amperage 50 amps
Cooling System Fluid Capacity 15 gal (58 l)
Fuel Capacity 132 gal (500 l)
Hydraulic System Fluid Capacity 21 gal (80 l)
Max Operation Weight – Front Axle 17,570 lbs (7,970 kg)
Max Operation Weight – Rear Axle 40,680 lbs (18,452 kg)
Max Operation Weight – Total 58,250 lbs (26,422 kg)
Oil System Fluid Capacity 10 gal (38 l)
Operating Voltage 24 volts
Tandem Case Fluid Capacity (each) 50 gal (190 l)
Tire Size 23.5 X 25-12PR (L3) tires
Transmission Fluid Capacity 7 gal (25 l)

Steering System

Articulation Angle 25 degrees
Turning Radius 26 ft (8 m)

Transmission

Max Speed – Forward 28 mph (45 kph)
Max Speed – Reverse 30 mph (48 kph)
Number of Gears – Forward 8
Number of Gears – Reverse 8
Transmission Type komatsu HYDROSHIFT Transmission

Weights

Operating Weight – On front wheels 17,571 lbs (7,970 kg)
Operating Weight – On rear wheels 40,521 lbs (18,380 kg)
Total Operating Weight 58,092 lbs (26,350 kg)
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