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Grease Sealed Track

The PC390LC-10 uses grease sealed tracks for extended undercarriage life.

Metal Guard Rings

The PC390LC-10 uses metal guard rings to protect all of the hydra cylinders and improve long term reliability.

O-Ring Face Seals

Flat face-to-face O-ring seals are used to securely seal hydraulic hose connections.

Robust Undercarriage

The undercarriage is designed using larger size class components to provide improved reliability and long component life.

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. An HD boom assembly is offered for increased strength and reliability.

Komatsu Designed Components

All of the major machine components such as the engine, hydraulic pumps, hydraulic motors, and control valves are exclusively designed and manufactured by Komatsu.

High Effciency Fuel Filter

A new high effciency dual element fuel flter improves fuel system reliability.

Equipped with a Fuel Pre-flter (With Water Separator)

A fuel pre-flter removes water and contaminants in the fuel to increase reliability. For convenience, the fuel pre-flter has a built in priming pump.

Durable Frame Structure

The revolving frame, center frame, and undercarriage are designed using the most advanced three dimensional CAD and FEM analysis technology.

Highly Reliable Electronic Devices

Exclusively designed electronic devices have passed severe testing.

• Controllers • Sensors

• Connectors • Heat Resistant Wiring

reliability features

PC390LC-10

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Fuel pre-filter (with water separator)

Fuel filter

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