Specifications :
Engine
| Model | Komatsu SAA6D170E-5 | |
| Type | 4-cycle, water-cooled, direct injection | |
| Aspiration | Turbocharged, aftercooled, cooled EGR | |
| Number of cylinders | 6 | |
| Bore | 6.69" | 170 mm |
| Stroke | 6.69" | 170 mm |
| Piston displacement | 1,413 in³ | 23.15 ltr |
| Governor | All-speed, electronic | |
| Horsepower: | ||
| SAE J1995 - Gross | 688 HP | 514 kW |
| ISO 9249 / SAE J1349 - Net | 672 HP | 502 kW |
| Hydraulic fan at maximum speed - Net | 620 HP | 463 kW |
| Rated rpm | 1800 rpm | |
| Fan drive type | Hydraulic, variable speed, reversible | |
| EPA Tier 3 and EU stage 3A emission certified. |
Hydraulic System
| Type | Open-center load sensing system | |
| Number of selectable working modes | 2 | |
| Main pump: | ||
| Type | Variable capacity piston pumps | |
| Pumps for | Boom, arm, bucket, swing, and travel circuits | |
| Maximum flow: | ||
| For implement and travel | 2 x 130.5 U.S. gpm | 2 x 494 ltr/min |
| For swing | 1 x 158.5 U.S. gpm | 1 x 600 ltr/min |
| Sub-pump for control circuit | Gear pump | |
| Hydraulic motors: | ||
| Travel | 2 x axial piston motors with parking brake | |
| Swing | 2 x axial piston motors with swing holding brake | |
| Relief valve setting: | ||
| Implement circuits | 4,550 psi | 31.4 MPa 320 kg/cm² |
| Travel circuit | 4,980 psi | 34.3 MPa 350 kg/cm² |
| Swing circuit | 3,910 psi | 27.0 MPa 275 kg/cm² |
| Pilot circuit | 430 psi | 2.9 MPa 30 kg/cm² |
| Hydraulic cylinders: | ||
| Cylinder / Number of cylinders | Bore x Stroke | Bore x Stroke |
| Backhoe | ||
| Boom / 2 | 8.9" x 94.1" | 225 mm x 2390 mm |
| Arm / 1 | 9.8" x 95.9" | 250 mm x 2435 mm |
| Bucket: | ||
| Std / 2 | 6.3" x 71.8" | 160 mm x 1825 mm |
| SP / 2 | 6.3" x 76.8" | 160 mm x 1950 mm |
Drives and Brakes
| Steering control | Two levers with pedals | |
| Drive method | Fully hydrostatic | |
| Travel motor | Axial piston motor, in-shoe design | |
| Reduction system | Planetary double reduction | |
| Maximum drawbar pull | 154,320 lb | 686 kN 70000 kg |
| Gradeability | 70% | |
| Maximum travel speed: | ||
| High | 2.0 mph | 3.2 km/h |
| Low | 1.3 mph | 2.1 km/h |
| Service brake | Hydraulic lock |
Swing System
| Driven by | 2 x Hydraulic motor | |
| Swing reduction | Planetary gear | |
| Swing circle lubrication | Grease-bathed | |
| Swing lock | Oil disc brake | |
| Swing speed | 5.5 rpm |
Undercarriage
| Center frame | H-leg frame | |
| Track frame | Box-section | |
| Track type | Sealed | |
| Track adjuster | Hydraulic | |
| No. of shoes: | ||
| Standard, SP, Shovel | 48 each side | |
| LC | 55 each side | |
| No. of carrier rollers | 3 each side | |
| No. of track rollers: | ||
| Standard, SP, Shovel | 8 each side | |
| LC | 10 each side |
Coolant and Lubricant Capity (refilling)
| Fuel tank | 359.3 US gal | 1360 ltr |
| Radiator | 37.5 US gal | 142 ltr |
| Engine | 22.7 US gal | 86 ltr |
| Final drive, each side | 5.5 US gal | 21 ltr |
| Swing drive | 2 x 6.4 US gal | 2 x 24.3 ltr |
| Hydraulic tank | 177.0 US gal | 670 ltr |
| PTO | 3.6 US gal | 13.5 ltr |
Operating Weight (Aproximate)
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