The new technology is used on John Deere’s 900K tracked feller bunchers and 900KH tracked harvesters, and allows for extra boom reach, and manoeuvrability in confined spaces.
The new boom provides an additional foot (30 cm) of maximum reach and two foot (61 cm) of minimum reach. This allows the feller buncher to reach 32% more area. The felling head can be moved closer to the machine to improve manoeuvrability in confined areas, but can still reach stems further away than before. Similarly, the tracked harvester has an improved cutting swath of 1 foot 3 inches (38 cm) and an additional maximum reach of nearly one foot (30 cm).
The new booms have been designed to provide integrated protection for hoses routed along the top of the boom. The feller bunchers crank and link system has been redesigned, featuring large steel castings. The harvester boom is designed to accommodate through-nose hydraulic hose routings. The routings guide the harvesting head hoses through the nose of the boom to the harvester head rotator. This results in the hoses being located in a position where they are less likely to be damaged. John Deere indicates that this will require a Waratah head that is compatible with the through-nose plumbing.
The increased productivity from the booms has necessitated increased cooling capacity. Both the feller buncher and harvester have new cooling package designs. The upgrade includes a larger fan for 33% more airflow and a larger hydraulic oil cooler.
John Deere has also made the Rapid Cycle System (RCS) boom operation standard on all 900K-Series tracked feller bunchers. This system lets the operator control the boom, stick and felling head trajectory with a single joystick.
Source: www.johndeere.com
The new booms have been designed to provide integrated protection for hoses routed along the top of the boom. The feller bunchers crank and link system has been redesigned, featuring large steel castings. The harvester boom is designed to accommodate through-nose hydraulic hose routings. The routings guide the harvesting head hoses through the nose of the boom to the harvester head rotator. This results in the hoses being located in a position where they are less likely to be damaged. John Deere indicates that this will require a Waratah head that is compatible with the through-nose plumbing.
The increased productivity from the booms has necessitated increased cooling capacity. Both the feller buncher and harvester have new cooling package designs. The upgrade includes a larger fan for 33% more airflow and a larger hydraulic oil cooler.
John Deere has also made the Rapid Cycle System (RCS) boom operation standard on all 900K-Series tracked feller bunchers. This system lets the operator control the boom, stick and felling head trajectory with a single joystick.
Source: www.johndeere.com