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Current number of specifications

 
Komatsu WD900-3 Wheel Dozer

Specification

Steering System
TypeArticulated type, full-hydraulic power steering
Articulation angle40 degees each direction
Minimum turning radius at the centre of outside tire30.2 ft in9205 mm
Engine
Number of Cylinders12
Piston displacement1861 cu in30.5 L
Make2238
ModelSA12V140
TypeWater-cooled, 4-cycle
Power Measured @2000 rpm
Displacement
AspirationTurbo-charged
Horsepower (gross)637 Kw 853 Hp (SAE J1340) 637 Kw 865 PS (DIN 6270)
Bore and Stroke140mm*165mm 5.5"*6.5"
Fuel systemDirect injection
Capacities
Fuel Tank377.8 gal1430.1 L
Hydraulic Tank191.5 gal724.9 L
Cooling system79.5 gal300.9 L
Engine Oil34.9 gal132.1 L
Torque converter, transmission and retarder cooling37 gal140.1 L
Axle each (Front & Rear)95.1 gal360 L
Transmission
Torque converter3-elements, 1-Stage, 1-phase
TransmissionFull power-shift, planetary Gear type
Tires
Front & Rear45/65 R45 XLDD(L4)
Rims36.00-45
Hydraulic System
Relief Valve Setting320 kg/cm2 4550 PSI
Pump typeTwo Piston-pumps, one for switch pump
No.of Cylinders2
Control ValveDouble spool type, pilot control
Blade lift ControlRaise, hold lower and float
Blade tilt and pitch ContolTilt-left, hold and Tilt-right, pitch for forward and back
TypeDouble-acting Piston type
Axles
Drive SystemFour-wheel drive
FrontFixed, full-floating
RearCenter-pin-support, full-floating +-11 Oscillation
Reduction GearSpiral bevel gear
Differential GearStraight bevel gear
Final reduction GearPlanetary gear, sinlge reduction, oil bath
Brakes
Service brake4-Wheel systematic break for front/rear wheel, hydraulically actuated for wet disc
Parking brakeDry-disc type, hydraulic released, spring applied on front axle input shaft
Emergency brakeUses Parking brake
Dimensions
Blade Capacity (SAE rated)Semi-U blade-26.0 m3 (34.0 cu.yd); Coal blade-45.0 m3 (58.9 cu.yd)
Blade WidthSemi-U blade-6470 mm (21'3"); Coal blade-7400 mm (24'3")
Max.drop below groundSemi-U blade-680 mm (2'3"); Coal blade 680 mm (2'3")
Max.lift above groundSemi-U blade-1580 mm(5"2"); Coal blade 1560 mm (5'1")
Max. tilt adjustmentSemi-U blade-1330 mm (4'4"); Coal blade 1710 mm (5'7")
Max. pitch angle adjustment+-8"