DEVICE FOR CUTTING DOWN TREES AND METHOD OF TREATING TREES BY SAID DEVICE AND HYDRAULIC DEVICE

摘要

In an improved method and apparatus for harvesting a tree, the pressure exerted on the tree by a grapple assembly is at a first preselected value during shearing of the tree trunk and positioning the severed tree for further processing. The pressure exerted on the tree by the grapple assembly is thereafter reduced to a second preselected value and the tree is further processed.