T
hese new attachments replace the previous H413, H415 and H415HD models.
John Deere introduces the new, small-size H423 harvester head and the large-size H425 and H425HD.. Like its predecessor, these heads have 4WD feed. The H423 harvester head works on the 1070G, 1170G and 1270G base machines and is ideal for thinning and other felling, where the tree diameter at chest height (DBH) is 150 to 350 mm (5.9 to 13.8 in). With improved hose routing from boom to harvester head, and from valve block to feed motors, this attachment offers improved durability, easy hose replacement and improved hose protection with modifications to the frame. It has an operating range of minimum diameter at chest height (DBH) of 40 mm (1.6 in) to a maximum 500 mm (19.7 in).
The H425 harvester head for the larger size class is available on the 1270G and 1470G base machines. This attachment is ideal for final felling and other felling where the tree diameter at chest height (DBH) is 250 to 500 mm (9.8 to 19 in). It also features improved hose routing from the base machine to the harvester head and from the valve block to the feed motors. The hoses are routed through the frame and are well protected within the structures, improving durability. Additionally, the H425HD harvester head added to the H425 model offers an HD tilt frame, expander pins in the upper end of the tilt cylinder, feed motor arms, and lower delimbing knives.
A wide selection of saw motors and saw bars are also available for the H425 and H425HD harvester heads. Source