Importance

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Abstract

A header adjusting system for a hillside combine harvester includes a master hydraulic cylinder assembly and a slave hydraulic cylinder assembly. The master hydraulic cylinder assembly is slaved to movement of the wheels relative to the combine frame. The slave hydraulic cylinder assembly is slaved to extension and retraction of the master hydraulic cylinder assembly. The slave hydraulic cylinder assembly causes the header to pivot about the longitudinal axis of the harvester in order to follow the contour of the ground. A header trimming mechanism is also provided to enable direct operator control of some of the pivoting action of the header about the longitudinal axis. A leveling system for a hillside combine harvester includes a cable and a biased, moveable reference pulley associated therewith. Movement of the reference pulley actuates a switch which selectively imparts fluid flow to hydraulic leveling cylinders to re-establish a reference position of such pulley, and correspondingly a reference orientation of such cylinders. A chain drive system for a hillside combine or other vehicle includes a first arm and second arm, at least one of which is mounted for pivotal movement relative to the other. An interconnecting chain drive sprocket assembly is independently rotatably supported relative to the pivot connection between the first and second arms. Such assembly includes interconnected chain drive sprockets for transferring chain drive from one arm to the other through the pivot connection.

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First Claim