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Excavator Series PC490LC-10
Features
A larger machine design and reinforced undercarriage provide up to 10% more lift capacity, improved lateral stability, and added reliability.
New engine and hydraulic pump control technology improves operational efficiency and lowers fuel consumption.
A powerful Komatsu SAA6D125E-6-A engine provides a net output of 268 kW 359 HP. This engine is EPA Tier 4 Interim and EU stage 3B emissions certified.
Komatsu Variable Geometry Turbocharger (KVGT) uses a hydraulic actuator to provide optimum air flow under all speed and load conditions.
Komatsu Diesel Particulate Filter (KDPF) captures 90% of particulate matter and provides automatic regeneration that does not interfere with daily operation.
Large displacement high efficiency pumps provide higher flow output at a lower engine speed and efficient operation.
Two boom mode settings provide power mode for maximum digging force or smooth mode for fine grading operations.
Komatsu Closed Center Load Sensing (CLSS) hydraulic system provides quick response amd smooth operation to maximize productivity.
Large LCD color monitor panel:
■ 7" high resolution screen
■ Provides "Eco-Guidance" for fuel efficient operation
■ Enhanced attachment control
Rearview monitoring system (standard) Enhanced working modes are designed to match engine speed, pump delivery, and system pressure to the application.
Enhanced working environment
■ High back, heated, and air suspension operator seat
■ Integrated ROPS cab design (ISO 12117-2)
■ Cab meets ISO Level 1 Operator Protective Guard (OPG) top guard (ISO 10262)
Equipment Management Monitoring System (EMMS) continuously monitors machine operation and vital systems to identify machine issues and assist with troubleshooting.
Komatsu designed and manufactured components
Hydraulically driven variable speed fan reduces parasitic load on the engine to improve fuel consumption and can be reversed to simplify cooler maintenance.
Guardrails (standard) located on the machine upper structure provide a convenient work area in front of the engine.
Battery disconnect switch allows a technician to disconnect the power supply before servicing the machine.
Heavy duty boom design with large one piece castings provide increased strength and reliability.
KOMTRAX® equipped machines can send location, SMR and operation maps to a secure website utilizing wireless technology. Machines also relay error codes, cautions, maintenance items, fuel levels, and much more.
Specifications
| Engine | ||
| Model | Komatsu SAA6D125E-6-A* | |
| Type | Water-cooled, 4-cycle, direct injection | |
| Aspiration | Turbocharged, aftercooled, cooled EGR | |
| Number of cylinders | 6 | |
| Bore | 4.92" | 125 mm |
| Stroke | 5.91" | 150 mm |
| Piston displacement | 674 in³ | 11.04 ltr |
| Horsepower | ||
| SAE J1995 : Gross | 362 HP | 270 kW |
| ISO 9249/SAE J1349 : Net | 359 HP | 268 kW |
| Rated rpm | 1900 rpm | |
| Fan drive type | Hydraulic | |
| Governor | All-speed control, electronic. | |
| *EPA Tier 4 Interim and EU stage 3B emissions certified | ||
| Hydraulics | ||
| 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 | 184 U.S. gal/min | 695 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 | 4,055 psi | 285 kgf/cm²/ 27.9 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 | 6.3" x 61.8" x 4.3" | 160 mm x 1570 mm x 110 mm |
| Arm / 1 | 7.3" x 71.7" x 4.7" | 185 mm x 1820 mm x 120 mm |
| Bucket / 1 | 6.3" x 50" x 4.3" | 160 mm x 1270 mm x 110 mm |
| Drives & Brakes | ||
| Steering control | Two levers with pedals | |
| Drive method | Hydrostatic | |
| Maximum drawbar pull | 73,987 lb | 329 kN / 33560 kg |
| Gradeability | 35° | 70% |
| Maximum travel speed: (Auto-Shift) | ||
| High | 3.4 mph | 5.5 km/h |
| Mid | 2.6 mph | 4.2 km/h |
| Low | 1.9 mph | 3.0 km/h |
| Service brake | Hydraulic lock | |
| Parking brake | Mechanical disc brake | |
| 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 | 9.1 rpm | |
| Swing torque | 97,024 ft. lbs. | 13414 kg•m |
| Undercarriage | ||
| Center frame | X-frame | |
| Track frame | Box-section | |
| Seal of track | Sealed track | |
| Track adjuster | Hydraulic | |
| Number of shoes | 49 each side | |
| Number of carrier rollers | 2 each side | |
| Number of track rollers | 8 each side | |
| Coolant and Lubricant Capacity (refilling) | ||
| Fuel tank | 172 U.S. gal | 650 ltr |
| Coolant | 11.6 U.S. gal | 44 ltr |
| Engine | 10.0 U.S. gal | 38.0 ltr |
| Final drive, each side | 2.9 U.S. gal | 11.0 ltr |
| Swing drive | 5.3 U.S. gal | 20 ltr |
| Hydraulic tank | 65.5 U.S. gal | 248 ltr |
| Hydraulic system | 124.7 U.S. gal | 472 ltr |
| Operating Weight (approximate) | ||
| Operating weight includes 7060 mm / 23'2" one-piece HD boom, 3380 mm / 11'1" arm, SAE heaped 2.25 m³ / 2.94 yd³ bucket, rated capacity of lubricants, coolant, full fuel tank, operator, and standard equipment. | ||
| PC490LC-10 Fixed Gauge | ||
| Shoes | 28" | 700 mm |
| Operating Weight | 104,700 lb | 47490 kg |
| Ground Pressure | 10.28 psi | 0.72 kg/cm² |
| Shoes | 31.5'' | 800 mm |
| Operating Weight: | 105,800 lb | 47990 kg |
| Ground Pressure | 9.12 psi | 0.64 kg/cm² |
| Shoes | 35.5" | 900 mm |
| Operating Weight: | 106,880 lb | 48480 kg |
| Ground Pressure | 8.25 psi | 0.57 kg/cm² |
| PC490LC-10 Variable Gauge | ||
| Shoes | 28" | 700 mm |
| Operating Weight | 107,070 lb | 48565 kg |
| Ground Pressure | 10.51 psi | 0.74 kg/cm² |
| Shoes | 31.5'' | 800 mm |
| Operating Weight: | 108,170 lb | 49065 kg |
| Ground Pressure | 9.32 psi | 0.66 kg/cm² |
| Shoes | 35.5" | 900 mm |
| Operating Weight: | 109,250 lb | 49555 kg |
| Ground Pressure | 8.43 psi | 0.59 kg/cm² |
| Component Weights | ||
| Arm including bucket cylinder and linkage | ||
| 3380 mm / 11'1" arm assembly | 4,720 lb | 2141 kg |
| 4000 mm / 13'1" arm assembly | 5,309 lb | 2408 kg |
| 4800 mm / 15'9" arm assembly | 5,831 lb | 2645 kg |
| One piece HD boom including arm cylinder | ||
| 7060 mm / 23'2" boom asssembly | 8,856 lb | 4017 kg |
| Boom cylinders x 2 | 807 lb | 366 kg |
| Counterweight (standard) | 21,936 lb | 9950 kg |
| Counterweight (for removal system) | 19,864 lb | 9010 kg |
| 2.25 m³ / 2.94 yd³ bucket - 54" width | 4,117 lb | 1867 kg |
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