Komatsu PC390LC-10 Hydraulic Excavator
January 4, 2012
Komatsu America Corp. recently introduced its new PC390LC-10
hydraulic excavator, featuring an increased operating weight at 89,072 lbs.,
and increased engine power at 257 hp. Read on for more details about this new
excavator model.
Q. What’s special or new about the PC390LC-10?
A. Built using Tier 3 technology, the Komatsu SAA6D114E-5 Interim Tier 4
certified engine has a larger displacement of 8.9 liters and provides increased
horsepower while lowering fuel consumption. This engine uses an advanced
electronic control system to manage air flow rate, fuel injection, combustion
parameters and aftertreatment functions to optimize performance, reduce
emissions and provide advanced diagnostic capability.
Komatsu has also developed a hydraulically actuated Variable Geometry
Turbocharger (KVGT) and Exhaust Gas Recirculation (EGR) valve, resulting in
better precision and air management, as well as longer component life. The
Komatsu Diesel Particulate Filter (KDPF) has an integrated design to keep the
operator aware of its status.
All Komatsu Interim Tier 4 machines come standard with Komatsu CARE, which
includes complimentary, factory-scheduled maintenance for three years or 2,000
hours, whichever comes first.
Q. What are the features of the excavator?
A. The PC390LC-10 features a large undercarriage design that uses the same components as the larger PC450LC-8. The over side lift capacity increases up to 20 percent when compared to the PC360LC-10, providing improved lateral stability in applications that require long arms or heavy lifting at maximum reach. The robust undercarriage design also features larger final drives that provide about 13 percent more drawbar pull than the PC360LC-10.
A highly efficient hydraulic system has helped reduce fuel consumption by up to 10 percent when compared to the previous model. This model features variable speed matching technology, which allows the engine speed to adjust based on the hydraulic pump output for both light and heavy-duty applications.
The new cab provides a comfortable and quiet work environment. The high-back, fully adjustable seat uses air suspension and is heated for improved comfort. A new high resolution 7-in. LCD monitor features improved working modes that allow the operator to match machine performance to the application.
The PC390LC-10 is equipped with the latest KOMTRAX technology, which sends machine operating information to a secure website utilizing wireless technology. Data such as operating hours, location, cautions and maintenance alerts are relayed to the web application for analysis.
Q. What benefits can customers expect from the PC390LC-10?
A. With the PC390LC-10, customers can expect to have the same reliability and productivity as its predecessor, but with improved efficiency, lower fuel consumption, a more comfortable operator environment, and convenient serviceability. With the larger size class undercarriage, the PC390LC-10 will also provide exceptional over side stability, especially in long arm applications or when using heavy attachments.
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