Two new Doosan crawler excavators have been added to the Tier 4-compliant lineup, featuring improved performance, operator-focused comfort, fuel economy and jobsite durability. The 14-metric-ton DX140LC-5 and DX140LCR-5 Tier 4-compliant machines replace the interim Tier 4 “dash-3” models.
The DX140LCR-5 model offers a shorter tail swing, allowing operators greater flexibility. Both the DX140LC-5 and DX140LCR-5 excavators come standard with permanently sealed and lubricated track links with bushings and hard-wear disks.
Smart Power Control (SPC) is available on both models and consists of two systems — Variable Speed Control and Pump Torque Control — that work together to improve machine efficiency. The engine control unit (ECU) automatically manages SPC when SPC is engaged. Each of the four power modes will function with SPC engaged or disengaged; however, SPC can be active only in the Digging work mode.
Both excavators come standard with a 7-inch liquid-crystal display (LCD) screen that allows operators to continue monitoring the excavator parameters while viewing the rear view or optional side-view camera image. Machine data appears next to the camera view. With an optional side camera, a split screen allows both camera displays to be viewed at once.
Doosan added auto shutdown to both models to help owners save fuel during non-working conditions. Operators can configure the idle time from 3 to 60 minutes and when enabled, the feature will shut down the excavator’s engine when the preset idle time is met.