Komatsu WD900-3 Wheel Dozer
Dimensions
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 Width
Semi-U blade-6470 mm (21\'3\"); Coal blade-7400 mm (24\'3\")
Max. Pitch Angle Adjustment
+-8\"
Max. Tilt Adjustment
Semi-U blade-1330 mm (4\'4\"); Coal blade 1710 mm (5\'7\")
Max.Drop Below Ground
Semi-U blade-680 mm (2\'3\"); Coal blade 680 mm (2\'3\")
Max.Lift Above Ground
Semi-U blade-1580 mm(5\"2\"); Coal blade 1560 mm (5\'1\")
Specifications
Steering System
Steering System Type
Articulated type, full-hydraulic power steering
Articulation Angle
40 degees each direction
Minimum Turning Radius At The Centre Of Outside Tire
30.2ft in
Engine
Number Of Cylinders
12
Piston Displacement
1861cu in
Engine Make
2238
Engine Model
SA12V140
Engine Type
Water-cooled, 4-cycle
Power Measured @
2000rpm
Displacement
1861.3cu in
Aspiration
Turbo-charged
Horsepower (Gross)
637 Kw 853 Hp (SAE J1340) 637 Kw 865 PS (DIN 6270)
Bore And Stroke
140mm*165mm 5.5\"*6.5\"
Fuel System
Direct injection
Capacities
Fuel Tank - Diesel
377.8gal
Hydraulic Tank
191.5gal
Cooling System
79.5gal
Engine Oil
34.9gal
Torque Converter, Transmission And Retarder Cooling
37gal
Axle Each (Front & Rear)
95.1gal
Transmission
Torque Converter
3-elements, 1-Stage, 1-phase
Transmission
Full power-shift, planetary Gear type
Tires
Front & Rear
45/65 R45 XLDD(L4)
Rims
36.00-45
Hydraulic System
Relief Valve Setting
320 kg/cm2 4550 PSI
Pump Type
Two Piston-pumps, one for switch pump
Axles
Drive System
Four-wheel drive
Front
Fixed, full-floating
Rear
Center-pin-support, full-floating +-11 Oscillation
Reduction Gear
Spiral bevel gear
Differential Gear
Straight bevel gear
Final Reduction Gear
Planetary gear, sinlge reduction, oil bath
Hydraulic System
No.Of Cylinders
2
Control Valve
Double spool type, pilot control
Blade Lift Control
Raise, hold lower and float
Blade Tilt And Pitch Contol
Tilt-left, hold and Tilt-right, pitch for forward and back
Hydraulic System Type
Double-acting Piston type
Brakes
Service Brake
4-Wheel systematic break for front/rear wheel, hydraulically actuated for wet disc
Parking Brake
Dry-disc type, hydraulic released, spring applied on front axle input shaft
Emergency Brake
Uses Parking brake
