Patent ID: 9357691
Filing Date: 2016-06-07
CPC Classification: A01B,A01D,F15B

Claim Text:
1. A hydraulic arrangement for lifting and/or lowering at least one implement carrying arm on an agricultural machine, said arrangement comprising an inlet hydraulic line and an outlet hydraulic line connecting a fluid pump and a fluid reservoir respectively to a first valve, said arrangement comprising at least one dual acting hydraulic cylinder for lifting and/or lowering the implement carrying arm, wherein a piston end and a cap end of at least one cylinder is connected to the first valve allowing the cylinder to be switched between a single acting mode or lifting a light implement attached to at least one carrying arm, a single acting mode for lifting a heavy implement attached to the carrying arm and a double acting mode for lifting and lowering an implement attached to the arm, characterized in that the inlet and outlet lines are connected to a second valve, said second valve adjustable to connect the pump to the inlet line and the reservoir to the outlet line and adjustable to connect the pump to the outlet line and the inlet line to the reservoir.