750K and 850K Crawler Dozers

John Deere

December 17, 2014 - Equipment

<p>John Deere 750k dozer. <em>Photo courtesy of John Deere.</em></p>

John Deere's upgraded final Tier 4 crawler dozers — the 750k and 850k — feature EcoMode and an Electro-Hydraulic control system. The 850K is the first John Deere dozer to feature EcoMode, which automatically adjusts engine speed and transmission settings based on load.

The 750K and 850K incorporate a PowerTech 6.8-L Final Tier 4 diesel engine with 165 hp and 205 hp, respectively. New features include an updated electro-hydraulic system and brand new control logic. 

The crawlers use continue to use hydrostatic transmissions. Diesel particulate filter (DPF) clean occurs automatically, and the DPF goes up to 15,000 hours before ash removal. 

Both dozers come with a new color LCD display monitor that displays onboard diagnostics with real-time values for every temperature, pressure, and speed sensor on the machine.

They also come equipped with John Deere’s V-Cool package. This system incorporates a cool on demand hydraulically driven fan that isolates coolers from dust and engine heat for increased efficiency and durability. In addition, the V-Cool is positioned behind the heavy-duty grille and fan, making the coolers less vulnerable to the rigors of the jobsite. The coolers are also easily accessible for ground level service. 

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