• 126,530 - 128,940 lbs Operating Weight
  • 359 @1900 rpm Horsepower
  • 2 yd³ Bucket Capacity

PC490LC-10 MH

If your needs require long reach and high stability in an excavator to handle material with grapples, clams or magnets, the PC490LC-10 material handler has the boom and arm combinations you’ll need.


Large Digging Force

The PC490LC-10 MH is equipped with the Power Max system. This function temporarily increases digging force for 8.5 seconds of operation.

Maximum arm crowd force (ISO):
200 kN (20.4 t) → 214 kN (21.8 t) 7 % UP
(with Power Max.)

Maximum bucket digging force (ISO):

256 kN (26.1 t) → 275 kN (28.0 t) 7 % UP
(with Power Max.)

Efficient Hydraulic System

The PC490LC-10 MH uses a Closed Center Load Sensing (CLSS) hydraulic system that improves fuel efficiency and provides quick response to the operator's demands. The PC490LC-10 MH also introduces new technology to enhance the engine and hydraulic pump control. This total control system matches the engine and hydraulics at the most efficient point under any load condition. There have also been improvements in the main valve and hydraulic circuit to reduce hydraulic loss, resulting in higher efficiency and lower fuel consumption.


Pump displacement has been increased, providing increased flow output as well as operation at the most efficient engine speed.

Idling Caution

To reduce unnecessary fuel consumption, an idling caution is displayed on the monitor if the engine idles for 5 minutes or more.

Working Mode Selection

The PC490LC-10 MH excavator is equipped with six working modes (P, E, L, B, ATT/P and ATT/E). Each mode is designed to match engine speed, pump flow, and system pressure to the application. The PC490LC-10 MH features a new mode (ATT/E) which allows operators to run attachments while in Economy mode.

Lifting Mode

When the Lifting mode is selected, the lift capacity is increased 7% by raising the hydraulic pressure.

Eco-Gauge Assists with Energy Saving Operations

The Eco-gauge and new fuel consumption gauge are viewed on the right side of the color monitor and assist the operator in maintaining low fuel consumption and environment friendly operation.


Hydraulic Variable Speed Fan

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

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.

Two Boom Mode Settings

Smooth boom mode provides easy operation for gathering blasted rock or when scraping down. Power boom mode maximizes digging force for more effective excavating.

Newly Designed Wide Spacious Cab

The newly designed wide spacious cab features a high back, fully adjustable seat with a reclining backrest. The console and seat have an integrated design so that they move together and provide additional comfort for the operator. The new higher capacity operator seat has been enhanced to provide more comfort.

  • Heated
  • Air Suspension
  • Integrated Seat
  • Console Mounted Arm Rests

Large High Resolution LCD Monitor Panel

A new large, user-friendly, high resolution LCD color monitor enables accurate and smooth work. Screen visibility and resolution are further improved compared to the previous LCD monitor panel. The switches and function keys are easy to operate and provide simple navigation through the monitor screens.
Data is displayed in 25 languages to support operators around the world.

Operational "ECO" Guidance

The monitor panel provides operational advice to the operator to help improve machine efficiency and lower fuel consumption. The operator can access the ECO guidance menu to check the Operation Records, Eco Guidance Records, and Average Fuel Consumption Logs.

Improved Attachment Control

The PC490LC-10 MH is capable of storing up to ten different attachments in the new monitor panel. The name of each attachment can be changed for better tool management. Hydraulic flow rates can be easily adjusted for one-way and two-way flow attachments.

KDPF Regeneration Notification

The LCD color monitor panel provides the operator with the status of the KDPF regeneration, without interfering with daily operation. When the machine initiates active regeneration an icon will appear to notify the operator.

Abnormalities Display with Code

When an abnormality occurs an error code is displayed on the monitor. When an important code is displayed, a caution lamp blinks and warning buzzer sounds to alert the operator to take action. The monitor also stores a record of abnormalities for more effective troubleshooting.

Advanced Monitoring System

The monitor provides advanced monitoring diagnostics to assist with troubleshooting and reduce costly downtime. 

Maintenance Tracking

When the machine approaches or exceeds the oil and filter replacement interval, the monitor panel will display lights to inform the operator.


Rear-view Monitoring System (standard)

On the large LCD color monitor the operator can view the image from one camera that will display areas directly behind the machine. An optional 2-camera system is available.



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
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


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 7" x 59" x 5" 177.8 mm x 1499 mm x 127 mm
Arm / 1 7.5" x 78" x 5" 190.5 mm x 1981 mm x 127 mm
Auxiliary pump for generator:
Maximum flow 36.7 gal/min 139 ltr/min
Maximum pressure 3,500 psi 24.2 MPa
246 kg/cm²
Mounting flange SAE-B, 2 bolt
Drive spline 15T-16/32DP

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 methodHydrostatic
Swing reductionPlanetary gear
Swing circle lubricationGrease-bathed
Service brakeHydraulic lock
Holding brake/Swing lockMechanical disc brake
Swing speed9.1 rpm
Swing torque97,024 ft. lbs.13414 kg•m


Center frameX-frame
Track frameBox-section
Seal of trackSealed track
Track adjusterHydraulic
Number of shoes49 each side
Number of carrier rollers4 each side
Number of track rollers8 each side

Coolant and Lubricant Capacity (refilling)

Fuel tank172 U.S. gal650 ltr
Coolant11.6 U.S. gal44 ltr
Engine10.0 U.S. gal38.0 ltr
Final drive, each side2.9 U.S. gal11.0 ltr
Swing drive5.3 U.S. gal20 ltr
Hydraulic tank65.5 U.S. gal248 ltr
Hydraulic system124.7 U.S. gal472 ltr

Operating Weight (approximate)

Operating weight without work tool (approximate)
Operating weight includes KO2US55 2-piece 16.8 m / 55' front, counterweight for MH 12317 kg / 27,450 lb, widen carbody, 78" cab riser, 25kw generator, rated capacities of lubricants, coolant, full fuel tank, operator and standard equipment.

Triple-Grouser Shoes 28" 700 mm
Operating Weight 126,530 lb 57410 kg
Ground Pressure 13.4 psi 0.94 kg/cm²
Triple-Grouser Shoes 31.5'' 800 mm
Operating Weight: 127,630 lb 57910 kg
Ground Pressure 11.8 psi 0.83 kg/cm²
Triple-Grouser Shoes 35.5" 900 mm
Operating Weight: 128,710 lb 58400 kg
Ground Pressure 10.6 psi 0.74 kg/cm²
For KOUS54 3-piece 16.5 m 54' front, add weight 105 kg 230 lb


  • Alternator, 50 Ampere, 24V
  • AM/FM radio
  • Automatic engine warm-up system
  • Automatic air conditioner/heater
  • Auxiliary input (3.5mm jack)
  • Batteries, large capacity
  • Battery disconnect switch
  • Boom and arm holding valves
  • Converter, (2) x 12V
  • Counterweight, 12317 kg / 27,150 lb
  • Dry type air cleaner, double element
  • Electric horn
  • EMMS monitoring system
  • Engine, Komatsu SAA6D125E-6-A
  • Engine overheat prevention system
  • Fan guard structure
  • Fuel system pre-cleaner 10 micron
  • High back air suspension seat, with heat
  • Hydraulic cooling fan (reversible)
  • Hydraulic track adjusters
  • KOMTRAX® Level 4.0
  • Large LCD color monitor, high resolution
  • Lock lever
  • Mirrors, (LH and RH)
  • Operator Protective Top Guard (OPG), Level 1
  • 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
  • Seat belt, retractable, 76 mm / 3"
  • Seat belt indicator
  • Secondary engine shutoff switch
  • Service valve
  • Shoes, triple grouser, 900mm /35.5"
  • Skylight
  • Slip resistant foot plates
  • Starter motor, 11.0kW/24V x 1
  • Suction fan
  • Thermal and fan guards
  • Track frame undercover
  • Travel alarm
  • Two boom mode settings
  • Widen carbody, retractable, 3505 mm / 11'6", track gauge
  • Working light (RH front)
  • Working mode selection system


  • (1) additional rearview camera
  • 25 KW hydraulic driven generator (requires cab riser 1981 mm / 78" and main pump with aux drive)
  • Cab guards
    – Full front guard, OPG Level 1 (Not available with cab riser)

    – Full front guard, OPG Level 2 (Not available with cab riser)

    – Bolt-on top guard, OPG Level 2

    – Lower front window guard (Not available with cab riser)
  • Cab riser 1981 mm / 78", manual tilt, with cab front window guard
  • Front:
    – 2-piece 16.8 m / 55' with piping and burst valves

    – 3-piece 16.5 m / 54' with piping and burst valves
  • High pressure in-line hydraulic filters
  • Hydraulic control packages for:
    – 2-piece front grapple only

    – 2-piece front grapple and magnet

    – 3-piece front grapple and magnet
  • Hydraulic control unit, 1 actuator
  • Komatsu main pump w/ aux drive (ILOS) (SAE B, 2 bolt flange, spline 13T 16/32DP)
  • Rain visor
  • Revolving frame undercovers, heavy duty
  • Shoes, triple grouser, 800 mm / 31.5"
  • Shoes, triple grouser, 700 mm / 28"
  • Sun visor
  • Straight travel pedal
  • Track roller guards, full length
  • Working light, front, one additional on cab
  • Attachment Options
    – 2 yd³ 4 tine scrap grapple

    – Magnet mounting crosshead