• 105,670 - 110,220 lbs Operating Weight
  • 359 @1900 rpm Horsepower
  • 1.47 - 4.15 yd³ Bucket Capacity

PC490LC-11

The PC490LC-11 with an operating weight of 105,670 lbs (47,930 kg) to 110,220 lbs (49,995 kg), is a large performance oriented excavator with reinforced undercarriage for high lift capacity, lateral stability and added durability. The PC490LC-11 leverages Komatsu engine technology to provide a productive, dependable and efficient Tier 4 Final emissions certified machine that does not interfere with daily operation. An enhanced Power Mode provides improved hydraulic flow, reduced cycle time and better productivity than the previous model it replaces. The PC490LC-11 is ideally sized for high production earthmoving applications while be easily transportable.

PC490LC-11 Walkaround  >


Features

New Tier 4 Final Engine

The Komatsu SAA6D125E-7 engine is EPA Tier 4 Final emissions certified and provides exceptional performance while reducing fuel consumption. Based on Komatsu proprietary technologies developed over many years, this new diesel engine reduces nitrogen oxides (NOx) by more than 80% when compared to Tier 4 interim levels. Through the in-house development and production of engines, electronics, and hydraulic components, Komatsu has achieved great advancements in technology, providing high levels of performance and efficiency in virtually all applications.

Heavy-duty aftertreatment system

This new system combines a Komatsu Diesel Particulate Filter (KDPF) and Selective Catalytic Reduction (SCR). The SCR NOx reduction system injects the correct amount of Diesel Exhaust Fluid (DEF) at the proper rate, thereby decomposing NOx into non-toxic water vapor (H2O) and nitrogen gas (N2).

Komatsu Auto Idle Shutdown

Komatsu auto idle shutdown automatically shuts the engine down after idling for a set period of time to reduce unnecessary fuel consumption and exhaust emissions. The amount of time before the engine is shutdown can be easily programmed from 5 to 60 minutes.

Enhanced Productivity

The PC490LC-11's enhanced P Mode provides more hydraulic flow and increases productivity.

Productivity Up to 13% increase
(compared to the PC490LC-10 in standard P Mode)

Hydraulic Variable Speed Fan

The electronic control system sets the rotation speed of the cooling fan according to the coolant, hydraulic oil, and ambient temperatures; effectively uses the engine output to reduce wasteful fuel consumption; and reduces noise during low-speed fan operation.

Variable Track Gauge (option)

Lateral stability is significantly increased when operating with the gauge extended (compared to fixed gauge). With track frames retracted, overall width complies with many local transportation regulations.

Large Displacement High Efficiency Pump

Large displacement hydraulic implement pumps provide high flow output at lower engine RPM as well as operation at the most efficient engine speed.

High Rigidity Work Equipment

Booms and arms are constructed with thick plates of high tensile strength steel. In addition, these structures are designed with large cross sectional areas and large one piece castings in the boom foot, the boom tip, and the arm tip. The result is work equipment that exhibits long term durability and high resistance to bending and torsional stress. A standard HD boom design provides increased strength and reliability.

Wide spacious cab

The wide spacious cab includes a heated air suspension seat with reclining backrest. The seat height and position are easily adjusted using a pull-up lever. The armrest position is easily adjusted together with the console. Reclining the seat further enables it to be fully laid back with the headrest attached.

New Monitor Panel Interface Design

An updated large high resolution LCD color monitor enables accurate and smooth work. The interface has been redesigned to display key machine information in a new user friendly interface. A rear view camera and an DEF level gauge display have been added to the default main screen. The interface has a function that enables the main screen mode to be switched, thus enabling the optimum screen information for the particular work situation to be displayed.

Centralized engine check points

Locations of the engine oil check and filters are integrated into one side to allow easy maintenance and service.

Battery disconnect switch

A standard battery disconnect switch allows a technician to disconnect the power supply and lock out before servicing the machine.

Long-life oils, filters

High performance filters are used in the hydraulic circuit and engine. By increasing the oil and filter replacement intervals, maintenance costs can be significantly reduced.

Engine oil & Engine oil filter - every 500 hours
Hydraulic oil - every 5000 hours
Hydraulic oil filter - every 1000 hours

Large capacity air cleaner

Large capacity air cleaner is comparable to that of larger machines. The larger air cleaner can extend air cleaner life during long-term operation and helps prevent early clogging, and resulting power loss. A reliable seal design is used for reliability.

Diesel Exhaust Fluid tank

A large tank volume extends operating time before refilling and is installed on the right front stairway for ease of access.

ROPS Cab (ISO 12117-2)

The machine is equipped with a ROPS cab that conforms to ISO 12117-2 for excavators as standard equipment. It also satisfies the requirements for Level 1 Operator Protective Guard (OPG) and top guard (ISO 10262).

Specifications

Engine

Model
Komatsu SAA6D125E-7*
Type
Water-cooled, 4-cycle, direct injection
Aspiration
Komatsu Variable Geometry Turbocharger with air-to-air aftercooled EGR
Number of cylinders
6
Bore 125 mm 4.92"
Stroke 150 mm 5.91"
Piston displacement 11.04 ltr 674 in³
Horsepower

SAE J1995 : Gross 270 kW 362 HP
ISO 9249/SAE J1349 : Net 268 kW 359 HP
Rated rpm
1900 rpm
Governor
All-speed control, electronic.
Fan drive method for radiator cooling
Hydraulic
*EPA Tier 4 Final emissions certified

Hydraulics

Type: HydrauMind (Hydraulic Mechanical Intelligence) system, closed-center system with load sensing valve and pressure compensated valves, 6 selectable working modes
Main pump:
Pumps for   Boom, arm, bucket, swing, and travel circuits
Type Variable displacement axial piston type
Maximum flow 780 ltr/min 206 U.S. gal/min
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 380 kgf/cm²/ 37.3 MPa 5,400 psi
Travel circuit 380 kgf/cm² / 37.3 MPa 5,400 psi
Swing circuit 285 kgf/cm²/ 27.9 MPa 4,050 psi
Pilot circuit 33 kgf/cm² / 3.2 MPa 470 psi
Hydraulic cylinders:
Number of cylinders Bore x Stroke x Rod Diameter Bore x Stroke x Rod Diameter
Boom / 2 160 mm x 1570 mm x 110 mm 6.3" x 61.8" x 4.3"
Arm / 1 185 mm x 1820 mm x 120 mm 7.3" x 71.7" x 4.7"
Bucket / 1 160 mm x 1270 mm x 110 mm 6.3" x 50" x 4.3"

Drives & Brakes

Steering control Two levers with pedals
Drive method Hydrostatic
Maximum drawbar pull 329 kN / 33510 kg 73,880 lb
Gradeability 35° 70%
Maximum travel speed: (Auto-Shift):
High 5.5 km/h 3.4 mph
Mid 4.2 km/h 2.6 mph
Low 3.0 km/h 1.9 mph
Service brake Hydraulic lock
Parking brake Mechanical disc brake

Swing System

Drive method Hydrostatic motor
Swing reduction Planetary gear
Swing circle lubrication Grease-bathed
Service brake Hydraulic lock
Holding brake/Swing lock Mechanical disc brake
Swing speed 9.0 rpm
Swing torque 13414 kg•m 97,024 ft. lbs.

Undercarriage

Center frame X-frame
Track frame Box-section
Track type
Sealed
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 650 ltr  172 U.S. gal
Coolant 47 ltr 12.4 U.S. gal
Engine 38 ltr 10.0 U.S. gal
Final drive, each side 11 ltr 2.9 U.S. gal
Swing drive 20 ltr 5.3 U.S. gal
Hydraulic tank 248 ltr 65.5 U.S. gal
Diesel Exhaust Fluid (DEF) tank 39 ltr 10.3 U.S. gal

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.

Fixed Gauge  
Shoes 700 mm 28"
Operating Weight 47930 kg 105,670 lb
Ground Pressure 0.73 kg/cm² 10.38 psi
Shoes 800 mm 31.5''
Operating Weight: 48430 kg 106,770 lb
Ground Pressure 0.65 kg/cm² 9.20 psi
Shoes 900 mm 35.5"
Operating Weight: 48920 kg 107,850 lb
Ground Pressure 0.58 kg/cm² 8.32 psi
Variable Gauge
Shoes 700 mm 28"
Operating Weight 49005 kg 108,040 lb
Ground Pressure 0.75 kg/cm² 10.61 psi
Shoes 800 mm 31.5''
Operating Weight: 49505 kg 109,140 lb
Ground Pressure 0.67 kg/cm² 9.40 psi
Shoes 900 mm 35.5"
Operating Weight: 49995 kg 110,220 lb
Ground Pressure 0.60 kg/cm² 8.50 psi

Standard

  • 3 speed travel with auto shift
  • Alternator, 90 Ampere, 24V
  • AM/FM radio
  • Automatic engine warm-up system
  • Automatic climate control/air conditioner/heater/defroster
  • Auto idle
  • Auto idle shut down, programmable
  • Auxiliary input (3.5mm jack)
  • Batteries, large capacity (2 x 12V)
  • Battery master disconnect switch
  • Boom holding valves
  • Carrier rollers, (2 each side)
  • Converter, (2) x 12V
  • Counterweight, 9573 kg 21,105 lb
  • Dry type air cleaner, double element
  • Electric horn
  • Engine, Komatsu SAA6D125E-7
  • Engine coolant to -25°C -13°F
  • EMMS monitoring system
  • Engine overheat prevention system
  • Extended work equipment grease interval
  • Fan guard structure
  • Fuel priming pump, 24V
  • Fuel system pre-filter 10 micron
  • Grease sealed track chain
  • High back air suspension seat, with heat
  • Hydraulic cooling fan (reversible)
  • Hydraulic track adjusters
  • KOMTRAX® Level 5.0
  • Large LCD color monitor, high resolution
  • Lock lever
  • Mirrors, (LH and RH)
  • Operator Protective Top Guard (OPG), Level 1
  • Operator identification system
  • Pattern change valve (ISO to BH control)
  • Power maximizing system
  • PPC hydraulic control system
  • Pump/engine room partition cover
  • Radiator and oil cooler dustproof net
  • Rear reflectors
  • Rearview monitoring system (1 camera)
  • Revolving frame deck guard
  • Revolving frame undercovers
  • ROPS cab (ISO12117-2)
  • Seat belt indicator
  • Seat belt, retractable, 76mm 3"
  • Secondary engine shutoff switch
  • Service valve
  • Skylight
  • Slip resistant foot plates
  • Starter motor, 11.0kW/24V x 1
  • Suction fan
  • Thermal and fan guards
  • Track frame swivel guard
  • Track roller guards, center section
  • Track rollers, 8 (each side)
  • Track shoes, triple grouser, 700mm 28"
  • Travel alarm
  • Two boom mode settings
  • Working lights, 2 (boom and RH front)
  • Working mode selection system

Optional

Arms

  • 2900 mm 9'6" arm assembly
  • 3380 mm 11'1" arm assembly
  • 3380 mm 11'1" arm assembly with piping
  • 4000 mm 13'1" arm assembly
  • 4800 mm 15'9" arm assembly

Booms

  • 7000 mm 23'2" HD boom assembly
  • 7000 mm 23'2" HD boom assembly with piping

Cab guards

  • Lower front window guard
  • Full front guard, OPG Level 1
  • Full front guard, OPG Level 2
  • Bolt-on top guard, OPG Level 2

Other

  • Counterweight removal system
  • Counterweight, 12316 kg 27,153 lbwith revolving frame reinforcement
  • High altitude arrangement
  • High pressure in-line hydraulic filters
  • Hydraulic control unit, 1 actuator
  • Proportional control handles
  • Rain visor
  • Revolving frame undercovers, heavy duty
  • Revolving frame undercovers, severe duty
  • Sun visor
  • Straight travel pedal
  • Track roller guards, full length
  • Track shoes, triple grouser, 800 mm 31.5"
  • Track shoes, triple grouser, 900 mm 35.5"
  • Working lights, front, two additional cab mounted
  • Variable track gauge