|
contents | technologies | |||||||||
| John Deere introduces the 8/900JH-Series Tracked Harvesters  John Deere introduces the 8/900JH-Series Tracked Harvesters, offering an integrated hydraulic system, a dedicated harvester boom providing 52% more cutting swath, a factory-installed Waratah TimberRite measuring system and plug-and-play readiness to accept an array of Waratah heads. These new tracked harvesters have been added to Deere's current 703JH, 753JH and 759JH models and are the industry's first large integrated tracked harvester solution with a broad range of heads. The 853JH and 903JH models are best applied to thinning and regeneration harvesting while the 909JH is also built to take on steep ground. The 909JH has a leveling upper structure making work on steep slopes comfortable for the operator and more productive. With the best-in-industry leveling envelope — operators will find that no matter the grade, the 909JH can handle it. Each of the harvesters boasts a John Deere PowerTech 6081H engine, which complies with EPA Tier 2 regulations and CARB emissions. "These rugged, industry-exclusive harvesters knock out stump-to-stump operations and optimize harvested wood value per hectare through an unmatched combination of Deere performance, Waratah productivity and TimberRite precision," said Elliott Little, product marketing manager for John Deere Construction & Forestry Company. "Simply put, the 800/900 Series can reach farther and work faster," said Little. "By providing factory installation of the measuring system and all associated hoses and wires for the Waratah heads, the Deere/Waratah combo promises and delivers optimal uptime." The new hydraulic system is the cornerstone of the 8/900JH-Series, providing efficient and reliable power to the head when needed for targeted delimbing pressure and feed speed, without lessening power to other areas. The integration between Waratah and Deere has maximized flow to the harvesting head, which means more strategic and effective grabbing pressure and faster speed. The system adjusts its pressure and oil flow based on each load — optimizing performance while lowering wear and tear on the system. You get maximum power while ensuring that no moving part is starved for oil, which translates into less downtime for maintenance. In addition, cool-running hydraulics make the pumps last longer. With a dedicated harvester boom that provides 52 percent more cutting swath than a converted feller buncher model, these large harvesters maximize cutting time and, in turn, increase overall productivity. "Although their size will dominate any forest, the 8/900JH-Series Harvesters were strategically designed to keep your daily operating costs low and manageable, " said Little. The streamlined hydraulic system, for example, supports improved daily and long-term fuel efficiency and machine life, and the TMC-controlled cooling fan reduces debris buildup to ensure better hydraulics overall. Customer feedback indicates "impressive fuel-efficiency" at 20-25 liters/hour (8-10 gal/hr) on our large tracked harvesters. The intuitively designed hydraulic system has fewer parts for easier maintenance and increased uptime. The system features common hydraulic reservoir internal components such as independent suction lines, case-drain filtration, and common return filters. And the internal deck floor below the components makes clean out easy. Giving operators a larger number of head options for specific harvesting needs, the 853JH, 903JH and 909JH are compatible with the following Waratah heads, including the HTH270, HTH290, HTH470, H480, HTH616, HTH622, HTH624 and the FL85. write your comments about the article :: © 2009 Construction News :: home page |