Patent attributes
A hydraulic control system for a work implement is provided. The hydraulic control system includes first hydraulic circuit and second hydraulic circuit. The first hydraulic circuit includes a selector valve and a pair of hydraulic cylinder assembly. Each hydraulic cylinder assembly includes a head end, a rod end, a cylinder, and a rod. The selector valve is configured to operate in neutral position and at least one operating position to selectively connect either the head end or the rod end to a fluid source, and the other of the head end or the rod end to fluid tank. The second hydraulic circuit includes a counterbalance valve and a shuttle valve. The counterbalance valve selectively connects the head end to the fluid tank. The shuttle valve is configured to maintain predefined pressure at relief side pressure port of the counterbalance valve to maintain a threshold pressure at the head end.
