Specifications :
Engine
| Model | Komatsu SAA6D107E-2* | |
| Type | Water-cooled, 4-cycle, direct injection | |
| Aspiration | Turbocharged, aftercooled, cooled EGR | |
| Number of cylinders | 6 | |
| Bore | 4.21'' | 107 mm |
| Stroke | 4.88'' | 124 mm |
| Piston displacement | 408 in³ | 6.69 ltr |
| Horsepower | ||
| SAE J1995 : Gross | 189 HP | 141 kW |
| ISO 9249/SAE J1349 : Net | 177 HP | 132 kW |
| Rated rpm | 2000 rpm | |
| Fan drive type | Mechanical | |
| Governor | All-speed control, electronic. | |
| *EPA Tier 4 Interim and EU Stage 3B emissions certified. |
Hydraulic System
Type . . HydrauMind (Hydraulic Mechanical
Intelligence New Design) system, closed-center system with load sensing
valves and pressure compensated valves
| Number of selectable working modes | 6 | |
| Main pump: | ||
| Type | Variable displacement piston type | |
| Pumps for | Boom, arm, bucket, swing, and travel circuits | |
| Maximum flow | 125.5 U.S. gal/min | 475 ltr/min |
| Supply for control circuit | Self-reducing valve | |
| Hydraulic motors: | ||
| Travel | 2 x axial piston motor with parking brake | |
| Swing | 1 x axial piston motor with swing holding brake | |
| Relief valve setting: | ||
| Implement circuits | 5,400 psi | 380 kgf/cm²/ 37.3 MPa |
| Travel circuit | 5,400 psi | 380 kgf/cm² / 37.3 MPa |
| Swing circuit | 4,190 psi | 295 kgf/cm²/ 28.9 MPa |
| Pilot circuit | 470 psi | 33 kgf/cm² / 3.2 MPa |
| Hydraulic cylinders: | ||
| Number of cylinders | Bore x Stroke x Rod Diameter | Bore x Stroke x Rod Diameter |
| Boom / 2 | 5.3" x 52.6" x 3.5" | 135 mm x 1335 mm x 90 mm |
| Arm / 1 | 5.5" x 64.4" x 3.9" | 140 mm x 1635 mm x 100 mm |
| Bucket / 1 | 5.1" x 40.2" x 3.5" | 130 mm x 1020 mm x 90 mm |
Electric System
Swing System
| Drive method | Hydrostatic | |
| Swing reduction | Planetary gear | |
| Swing circle lubrication | Grease-bathed | |
| Service brake | Hydraulic lock | |
| Holding brake/Swing lock | Mechanical disc brake | |
| Swing speed | 11.7 rpm | |
| Swing torque | 58,334 ft lbs | 8065 kg.m |
Drives and Brakes
| Steering control | Two levers with pedals | |
| Drive method | Hydrostatic | |
| Maximum drawbar pull | 45,349 lb | 202 kN / 20570 kg |
| Gradeability | 35° | 70% |
| Maximum travel speed: (Auto-Shift) | ||
| High | 3.4 mph | 5.5 km/h |
| Mid | 2.5 mph | 4.1 km/h |
| Low | 1.9 mph | 3.0 km/h |
| Service brake | Hydraulic lock | |
| Parking brake | Mechanical disc brake |
Undercarriage
| enter frame | X-frame | |
| Track frame | Box-section | |
| Seal of track | Sealed track | |
| Track adjuster | Hydraulic | |
| Number of shoes | 51 each side | |
| Number of carrier rollers | 2 each side | |
| Number of track rollers | 10 each side |
Coolant and Lubricant Capity (refilling)
| Fuel tank | 105.7 U.S. gal | 400 ltr |
| Coolant | 9.5 U.S. gal | 36 ltr |
| Engine | 6.1 U.S. gal | 23.1 ltr |
| Final drive, each side | 1.3 U.S. gal | 5.0 ltr |
| Swing drive | 1.9 U.S. gal | 7.2 ltr |
| Hydraulic tank | 34.9 U.S. gal | 132 ltr |
| Hydraulic system | 63.7 U.S. gal | 241 ltr |
Operating Weight (Aproximate)
Operating weight, including 5850 mm / 19'2"
one-piece boom, 3045 mm / 10'0" arm, SAE heaped 1.2 m³ / 1.57 yd³
bucket, rated capacity of
lubricants, coolant, full fuel tank, operator, and standard equipment.
| Triple-Grouser Shoes | 28" | 700 mm |
| Operating Weight | 54,490 lb | 24716 kg |
| Ground Pressure | 6.1 psi | 0.43 kg/cm² |
| Triple-Grouser Shoes | 31.5'' | 800 mm |
| Operating Weight: | 55,129 lb | 25006 kg |
| Ground Pressure | 5.4 psi | 0.38 kg/cm² |
| Component Weights | ||
| Arm including bucket cylinder and linkage: | ||
| 3045 mm / 10'0" arm assembly | 2,694 lb | 1222 kg |
| 3046 mm / 10'0" HD arm assembly | 2,906 lb | 1318 kg |
| 3500 mm / 11'6" arm assembly | 3,179 lb | 1442 kg |
| One piece boom including arm cylinder: | ||
| 5850 mm / 19'2" boom asssembly | 4,892 lb | 2219 kg |
| 5850 mm / 19'2" HD boom asssembly | 5,126 lb | 2325 kg |
| Boom cylinders x 2 | 463 lb | 210 kg |
| Counterweight | 10,847 lb | 4920 kg |
| 1.2 m³ / 1.57 yd³ bucket - 42" width | 2,178 lb | 988 kg |
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