Equipment

DX490LC-5 Crawler Excavator

Doosan

December 3, 2014 - Equipment

<p>Pictured is the DX490LC-5. <em>Photo courtesy of Doosan.</em></p>

Doosan’s DX420LC-5, DX490LC-5 and DX530LC-5 crawler excavators are final Tier 4 compliant and replace the company's interim Tier 4 DX420LC-3, DX490LC-3 and DX530LC-3.

The excavators comply with Tier 4 emission standards with modified diesel engines and aftertreatment technologies. The engines are optimized for use with a high-pressure common-rail (HPCR) fuel delivery system and a cooled exhaust gas recirculation (CEGR) system. They utilize a diesel oxidation catalyst (DOC) to reduce particulate matter (PM) and selective catalyst reduction (SCR) aftertreatment to reduce nitrogen oxides (NOx). Additionally, the crawler excavators use a variety of aftertreatment systems as part of the Tier 4 compliance, such as diesel exhaust fluid (DEF), which is used with SCR technology.

In addition to auto-shutdown and LCD display panel updates, the new Doosan crawler excavators feature improved anti-skid plates to increase traction on surfaces; auto belt tensioner, fan, and air conditioning to simplify maintenance; upgraded battery to minimize downtime; upgraded alternator for improved power to electrical components; and a new front window design for better visibility to the work area.

Similar to previous Doosan excavators, operators can choose from four power modes for more control to better balance fuel consumption and machine power to the working conditions. Operators can choose from four work modes — Digging, Breaker, Shear and Lifting — to maximize efficiency and fuel economy in specific applications.

Doosan excavators come with a standard three-year subscription to Doosan Telematics, which allows equipment owners and fleet managers to remotely monitor machine location, hours, fuel usage, engine idle versus work time, error codes and engine as well as hydraulic temperatures.

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