Abstract: A transmission is provided for a work machine. The transmission has a reservoir configured to hold a supply of fluid and a source configured to pressurize the fluid. The transmission also has a manifold configured to receive the pressurized fluid and a plurality of control valves fluidly communicating with the manifold in parallel relation. The transmission further has a main pressure relief valve in fluid communication with the manifold and the reservoir. The main pressure relief valve has a valve element that is movable between a first position where fluid is allowed to flow from the manifold to the reservoir and a second position where fluid is blocked from flowing to from the manifold to the reservoir. The transmission additionally has a controller in communication with the main pressure relief valve. The controller is configured to selectively move the valve element between the first and second positions.

Abstract: A transmission is provided that has a reservoir configured to hold a supply of fluid and a source configured to pressurize the fluid. The transmission also has a manifold configured to receive the pressurized fluid and a plurality of control valves fluidly communicating with the manifold in parallel relation. The transmission further has a pressure relief valve disposed downstream of the manifold and configured to selectively fluidly communicate the manifold with the reservoir.