Patent ID: 7114433

Claim:
A valve stack for a work machine having a first hydraulic actuator, a second hydraulic actuator, a first operator control device, and a second operator control device, the valve stack comprising: a first valve body having a first mounting surface and a second mounting surface; a first valve member disposed within the first valve body and movable to control operation of the first hydraulic actuator; a second valve body having a first mounting surface configured to engage the first mounting surface of the first valve body, and a second mounting surface; a second valve member disposed within the second valve body and movable to control operation of the second hydraulic actuator; a third valve body having a mounting surface configured to engage the second mounting surfaces of the first and second valve bodies; and at least one valve member disposed within the third valve body in fluid communication with the first and second operator control devices and the first and second valve members, the at least one valve member being movable between a first position at which movement of the first operator control device corresponds to movement of the first valve member and movement of the second operator control device corresponds to movement of the second valve member, and a second position at which movement of the first operator control device corresponds to movement of the second valve member and movement of the second operator control device corresponds to movement of the first valve member.