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D8R Series II (B)

Large Dozers

The D8R Series II combines power and efficiency with advanced technology for outstanding production at lower cost-per-yard.

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Engine Model 3406E
Flywheel Power 231 kW
Gross Power 252 kW
Net Power - Caterpillar 231 kW
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D8R Series II (B)
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FEATURES & BENEFITS

Engine

3406E EUI EngineThe 3406E engine meets worldwide emissions regulations for the Environmental Protection Agency (EPA), the European Union (EU) and the Japan Ministry of Co... Read more

Transmission

Planetary Power Shift TransmissionThe D8R II planetary power shift transmission features three speeds forward and three speeds in reverse and utilizes large diameter, hig... Read more

Torque Divider

Torque Divider PerformanceAn improved single-stage torque converter sends 70% of engine torque through a converter and 30% through a direct drive shaft for greater drivel... Read more

Steering

Differential SteeringDelivers uninterrupted power to both tracks to help maintain blade loads and reduce cycle times. Read more

Advanced Modular Cooling System (AMOCS)

Separate Circuit AftercoolerAMOCS features a new Separate Circuit Aftercooler and aftercooler water pump.Two Pass Cooling SystemCirculates coolant from the sectioned bott... Read more

Operator Station

Caterpillar Monitoring SystemProvides the operator instant feedback on the condition of operating systems and records such performance data as high/low gauge readings to... Read more

Structure

MainframeThe D8R II mainframe is built to absorb high impact shock loads and twisting forces.Equalizer Bar End PinsEqualizer bar end pins are oil filled and have limited... Read more

Undercarriage

Bogie SuspensionConforms more closely to the ground to provide more ground contact, especially in hard, uneven terrain. Higher traction means less slippage, better balanc... Read more

Work Tools/Attachments

BladesThe Universal (U) blade and the Semi-universal (SU) blade make full use of the D8R II power. The U blade has increased capacity and less spillage. The SU blade is b... Read more

SPECIFICATIONS FOR D8R Series II (B)

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Engine
Engine Model 3406E
Flywheel Power 231 kW
Gross Power 252 kW
Net Power - Caterpillar 231 kW
Net Power - ISO 9249 231 kW
Net Power - SAE J1349 229 kW
Net Power - EU 80/1269 231 kW
Bore 137 mm
Stroke 165 mm
Displacement 14.6 l
Net Power - DIN 70020 321 ps
Weights
Operating Weight 37875 kg
Shipping Weight 29575 kg
Transmission
1 Forward 3.4 km/h
2 Forward 6 km/h
3 Forward 10.6 km/h
1 Reverse 4.5 km/h
2 Reverse 7.9 km/h
3 Reverse 13.8 km/h
Hydraulic Controls
Pump Output - Steering 285 l/min
Pump Output - Implement 228 l/min
Tilt Cylinder Flow - Rod End Flow 130 l/min
Tilt Cylinder Flow - Head End Flow 170 l/min
Bulldozer Relief Valve Setting 24100 kPa
Tilt Cylinder Relief Valve Setting 24100 kPa
Ripper - Lift - Relief Valve Setting 24100 kPa
Ripper - Pitch - Relief Valve Setting 24100 kPa
Steering 39200 kPa
Tank Capacity 72 l
Undercarriage
Shoe Type Moderate Service Shoe
Width - Shoe 560 mm
Shoes/Side 44
Grouser Height 78 mm
Pitch 216 mm
Ground Clearance 528 mm
Track Gauge 2082 mm
Length - Track on Ground 3206 mm
Ground Contact Area 3.58 m²
Service Refill Capacities
Fuel Tank 625 l
Cooling System 94 l
Engine Crankcase* 37 l
Power Train 155 l
Final Drive - Each 12.5 l
Roller Frames - Each 65 l
Pivot Shaft Compartment 40 l
Implement Hydraulic System - Tank Only 72 l
Variable Fan Hub 3.1 l
Winches
Weight* 1790 kg
Oil Capacity 15 l
Increased Tractor Length 568 mm
Winch Case - Width 1171 mm
Drum Width 337 mm
Flange Diameter 610 mm
Drum Capacity - 24 mm (1 in) 127 m
Drum Capacity - 29 mm (1.13 in) 84 m
Drum Capacity - 32 mm (1.25 in) 58 m
Standards
ROPS/FOPS test
Cab test
Brakes test

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Bore 145 mm
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Operating Weight 50109 kg
Pump Output - Steering 387 l/min
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Gross Power 145 kW
Net Power - Caterpillar 228 kW
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Flywheel Power 447 kW
Bore 137 mm
Stroke 152 mm
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Flywheel Power 231 kW
Operating Weight 42050 kg
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Flywheel Power 306 kW
Operating Weight 53350 kg
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Flywheel Power 634 kW
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of

related attachment

Coal U-Blades

21.41 m³ (28.0 yd³)
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