Komatsu PC490 Excavator

The Komatsu PC490 excavator is a high-capacity, heavy-duty construction machine utilized in diverse industrial and commercial operations. It is engineered for efficient excavation and can handle substantial volumes of soil, rock, and other materials.

Description

The Komatsu PC490 excavator is a high-capacity, heavy-duty construction machine utilized in diverse industrial and commercial operations. It is engineered for efficient excavation and can handle substantial volumes of soil, rock, and other materials.

A primary feature of the Komatsu PC490 is its extensive digging capability. It is outfitted with a large bucket designed for the excavation and movement of significant material quantities. The bucket is mounted on a long reach arm, which is precisely controlled from the operator’s cab, allowing for accurate positioning and maneuvering in constrained or specific locations.

The Komatsu PC490 also boasts superior maneuverability and operational ease. It incorporates an array of controls and instrumentation for effective navigation and management of the excavator’s functions. The operator’s cab is constructed for optimal visibility and ergonomic comfort, ensuring clear sightlines to the work area and efficient access to control mechanisms.

Komatsu PC490 Excavator Features

Large Displacement High-Efficiency Pump: This pump features high-flow hydraulic implement pumps with large displacement, optimizing output at lower engine RPMs for enhanced operational efficiency.

Closed-Center Load-Sensing Hydraulic System: This system incorporates a closed-center load-sensing hydraulic system that ensures smooth operation, rapid cycle times, and effective multi-functioning while reducing fuel consumption.

Structural Durability: Engineered for long-term durability, the Komatsu PC210 excavator is constructed with high-tensile strength steel. It features booms and arms with thick plates and large cross-sectional areas to resist bending and torsional stress.

Emission Control: Equipped with a heavy-duty aftertreatment system that integrates a Komatsu Diesel Particulate Filter (KDPF) and Selective Catalytic Reduction (SCR). This system precisely injects diesel exhaust fluid to decompose nitrogen oxides.

Maintenance Access: Engine oil check and filter locations are consolidated on one side for streamlined maintenance access.

Ergonomic Design: The cab features a spacious layout with a heated air suspension seat and a reclining backrest. The seat height and position are adjustable via a pull-up lever, and armrest positioning is adjustable with the console.

User Interface: The vehicle has been updated with a large, high-resolution LCD color monitor that provides a user-friendly interface. The monitor displays key machine information, including rearview camera footage and a DEF level gauge.

Rollover Protection: Standard ROPS cab conforming to ISO 12117-2 standards, meeting Level 1 Operator Protective Guard (OPG) and top guard requirements per ISO 10262.

Operator Productivity: Supports operator identification IDs to manage and analyze operation data for individual machines via Komtrax data, enabling performance analysis by operator and machine.

Fuel Consumption Reduction: The auto idle shutdown feature deactivates the engine after a preset idle period (5 to 60 minutes) to minimize fuel consumption and exhaust emissions.

Component Protection: Equipped with large, heavy-duty revolving frame guards and swivel guards to protect critical components from damage and debris accumulation.

Maintenance and Serviceability: A new step for AdBlue/DEF tank filling facilitates easier maintenance access and provides a secure work area in front of the engine.



Products 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
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:

Hydraulic cylinders

Number of cylinders
Bore x Stroke x Rod Diameter
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)

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
8.50 psi

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