Komatsu PC490LC-10

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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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