DX255LC Crawler Excavator


March 11, 2015 - Equipment

<p><em>Photo courtesy of Doosan</em></p>

The 184-hp Doosan DX255LC-5 crawler excavator is Tier 4-compliant and replaces the interim Tier 4 DX255LC-3.

Machine updates include auto-shutdown and LCD screen updates; improved anti-skid plates for easier engine access for machine maintenance; updated auto belt tensioner, fan, and air conditioning for simplified maintenance; relocated emergency engine stop for easier operator access; upgraded alternator that delivers improved power for electrical components; and a new front window design that provides good visibility to the work area.

A new selectable feature, Smart Power Control (SPC), consists of two systems — Variable Speed Control and Pump Torque Control — that work together to improve machine efficiency while maintaining productivity and reducing fuel consumption. The engine control unit automatically manages SPC when SPC is engaged. 

Variable Speed Control reduces engine rpm during low workload requirements such as during the swing portion of a dig cycle. This reduces the total energy required to perform a task and improves fuel efficiency by up to 3-7%, according to the company.

Pump Torque Control matches hydraulic pump torque and engine response to the task, preventing engine overload and excess fuel consumption tp improve efficiency.

Doosan excavators come with a standard three-year subscription to Doosan Telematics.

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