John Deere 750K, 850K Dozers

December 4, 2014

Models 750K and 850K crawler dozers have been upgraded with a PowerTech 6.8-liter Tier 4-Final diesels with 165 and 205 horsepower, respectively. The DPF cleans automatically and will go up to 15,000 hours before ash removal, the company says, and the engine uses SCR technology requiring DEF. The optional electro-hydraulic (EH) control system has been updated with new control logic. It allows features such as blade shake for PAT configurations, improved blade response, and rear auxiliary configurable settings.

Hydrostatic transmission updates were made to the electronic control system, and machine hydraulics were updated and now offer optional electro-hydraulic controls for both the Power-Angle-Tilt and Outside Dozer blade configurations. A high flow hydraulic pump is now available for both pilot controls and the updated electro-hydraulic system.

The V-Cool package incorporates a cool-on-demand hydraulically driven fan that isolates coolers from dust and engine heat. It is positioned behind the grille and fan, protecting coolers but leaving them accessible for ground-level service.

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