Equipment World Digital Magazine
Issue link: http://read.dmtmag.com/i/712836
EquipmentWorld.com | August 2016 17 marketplace | staff report John Deere has introduced engine and hydraulics upgrades in its largest excavator, the 870G LC. Powered by a new Tier 4 Final, 512-horsepower engine, this production-class ma- chine features more hydraulic fl ow than its predecessor, says Deere. An expansion tank in the updated model's cooling system enhances air pursing, provides make-up fl uid when needed and improves overall cooling effi ciency to keep the new engine oper- ating at peak performance. Like other G Series machines, the new 870 features the Powerwise III engine/hydraulic-management system which balances engine performance and hydraulic fl ow for the application at hand through three selectable work modes. Inside the cab, operators will fi nd a heated air-suspension seat along with a new monitor with turn-and-tap rotary control for quick access to numerous functions. Designed for light-to-medium dozing Komatsu has released its D39EX/PX-24 dozers, pow- ered by a 3.26-liter Komatsu SAA4D95E-7 engine pro- ducing 105 horsepower. New engine features include a water cooled, variable fl ow turbocharger, which improves engine response, and an auto-idle shutdown. The engine provides 98-percent passive regeneration, which does not interfere with operation. Designed for light-to-me- dium dozing and fi ne grading applications, the machine includes a standard automatic reverse grading mode and an improved fi nal drive and cover design. Komatsu says this Triple Labyrinth design increases protection from mud and debris. The new D39s also give operators a choice between a quick-shift, three-speed mode and a variable, 20-speed customizable transmission mode. A rear-view camera system is also standard. EDITOR'S PICK EDITOR'S PICK UPGRADED ENGINE, HYDRAULICS ON DEERE'S LARGEST EXCAVATOR