Komatsu WD900-3
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Contents:
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") |
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 | 30.2 ft in (9205 mm) |
Engine
| Number Of Cylinders | 12 |
| Piston Displacement | 1861 cu in (30.5 L) |
| Engine Make | 2238 |
| Engine Model | SA12V140 |
| Engine Type | Water-cooled, 4-cycle |
| Power Measured @ | 2000 rpm |
| Displacement | 1861.3 cu in (30.5 L) |
| 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 | 377.8 gal (1430.2 L) |
| Hydraulic Tank | 191.5 gal (725 L) |
| Cooling System | 79.5 gal (301 L) |
| Engine Oil | 34.9 gal (132.2 L) |
| Torque Converter, Transmission And Retarder Cooling | 37 gal (140.1 L) |
| Axle Each (Front & Rear) | 95.1 gal (360 L) |
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 |
