Komatsu D65-18 and D85-18 walkaround

The new D85EX-18 with a powerful 11 liter Tier 4 Final emission engine is equipped with a large capacity power-pitch SIGMADOZER® blade and automatic shift transmission for maximum productivity while consuming less fuel than the prior model.
Learn more about the D85EX-18: bit.ly/3f0GAGg
The D65EX-18 delivers excellent production and economy while maintaining the legendary product quality you’ve come to expect from a Komatsu machine.
Learn more about the D65EX-18: bit.ly/2AKy92T
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[@damienyambo2337]

Can some one explain the operation of the hydraulic fan on the Komatsu D85 ex dozer?

[@rossgray3070]

Its driven by a hydraulic motor from the hyd system and thermostaticly controlled so in cold weather it doesn't spin as fast as it would in hot weather, saves on fuel and power and can be reversed to clean trash out of the radiator core. Most modern machines these days have them.

[@waseemmalik1263]

Komatsu D50A17

[@Tycy2014]

thanks ai lol