Operating system for a tree harvester

Details Operating system for a tree harvester Operating system for a tree harvester

F - Mech Eng,Light,Heat,Weapons

15

B

144/25, 138/72.1

F15B 21/00 (2006.01)

Patent

CA 1278733

A B S T R A C T A tree-harvesler operating system for controlling in particular the tree-feeder motors (5), the crosscut saw (6) and the cylinder (18) operating the function of the feeder and the limbing blades, especially in grapple processors. A simple operating system has been achieved by taking advantage of a two-direction feeding of pressurized oil by means of two delivery lines (2) and (3). By preventing the rotation of the tree-feeder motors (5) and by allowing at this time only one flow direction of pressurized oil to the crosscut saw, it has thus been possible to utilize the pres- surized oil drive opposite to this flow direction of the saw (6) separately for the cylinder (18) which operates the function of the feeder and the limber blades, the direction of movement of the cylinder (18) depending on the posi- tion of valve (15).

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