Excavator PC490LC 10 MH 2

The PC490LC-11 material handler is specially designed to handle a variety of materials, from bulk scraps to sand and gravel, with efficiency. It provides a stable high lift and reach, making it suitable for various tasks.

  • Improved over-the-side lift capacity and stability compared to a base machine.
  • Enhanced visibility with cab riser packages.
  • Increased versatility with options for longer booms and arms.
  • Decreased unloading cycle times thanks to smooth hydraulics.

Product Features and benefits:

Reinforced Design
Maximize strength and durability while minimizing weight with reinforced box section design using high-strength alloy steel.

Optimized Hydraulic System
Ensure smooth machine response by hydraulically cushioning boom and arm cylinders with spherical ball bushings. Fine-tune control functions for optimal performance.

Designed with Safety in Mind
Enhance operator safety with a high cab riser package, providing improved visibility. Access the cab easily with large slip-resistant platforms, steps, and handrails.

Specifications for PC490LC-11 MH

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: 4.92 in
  • Stroke: 5.91 in
  • Piston displacement: 674 in³
  • Horsepower:
    • SAE J1995 – Gross: 362 HP
    • ISO 9249/SAE J1349 – Net: 359 HP
  • Rated rpm: 1,900 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: 206 US gpm
  • 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
    • Travel circuit: 5,400 psi
    • Swing circuit: 4,050 psi
    • Pilot circuit: 470 psi
  • Hydraulic cylinders:
    • Number of cylinders:
      • Boom / 2: 6.3 x 61.8 x 4.3 in
      • Arm / 1: 7.3 x 71.7 x 4.7 in
      • Bucket / 1: 6.3 x 50 x 4.3 in

Drives and Brakes:

  • Steering control: Two levers with pedals
  • Drive method: Hydrostatic
  • Maximum drawbar pull: 73,880 lbs.
  • Gradeability: 70%
  • Maximum travel speed (Auto-Shift):
    • High: 3.4 mph
    • Mid: 2.6 mph
    • Low: 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: 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 & Lubricant Capacity (Refilling):

  • Fuel tank: 172 US gal
  • Coolant: 12.4 US gal
  • Engine: 10.0 US gal
  • Final drive, each side: 2.9 US gal
  • Swing drive: 5.3 US gal
  • Hydraulic tank: 65.5 US gal
  • Diesel Exhaust Fluid (DEF) tank: 10.3 US gal

Operating Weight (Approximate):

  • Operating weight includes 23 ft. 2 in one-piece HD boom, 11 ft. 1 in arm, SAE heaped 2.94 yd3 bucket, rated capacity of lubricants, coolant, full fuel tank, operator, and standard equipment.
  • Fixed Gauge:
    • Shoes 28 in:
      • Operating Weight: 105,670 lbs.
      • Ground Pressure: 10.38 psi
    • Shoes 31.5 in:
      • Operating Weight: 106,770 lbs.
      • Ground Pressure: 9.20 psi
    • Shoes 35.5 in:
      • Operating Weight: 107,850 lbs.
      • Ground Pressure: 8.32 psi
  • Variable Gauge:
    • Shoes 28 in:
      • Operating Weight: 108,040 lbs.
      • Ground Pressure: 10.61 psi
    • Shoes 31.5 in:
      • Operating Weight: 109,140 lbs.
      • Ground Pressure: 9.40 psi
    • Shoes 35.5 in:
      • Operating Weight: 110,220 lbs.
      • Ground Pressure:

Further information on this machine can be viewed by visiting this link https://www.komatsu.com/products/excavators/large-excavators/pc490lc-11-mh

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DISCLAIMER: The information that has been provided in this article is sourced from https://www.komatsu.com. The author does not assume any responsibility or liability for the accuracy, completeness, or usefulness of the information provided. The author shall not be held liable for any loss or damage resulting from the use of this content. For further information please contact the manufacturer directly.