One or more portions of an agricultural implement has components that are adjusted to adjust the height of the portions. This allows the implement to be used in a transport position or in a field use position. To better control the change in the height, an implement includes a mechanical control valve that mechanically controls an input to one or more actuators that are providing the height adjustment. The mechanical control valve is used to attempt to synchronize the actuation or more than one actuator so that the height of the implement is adjusted in a controlled manner. The mechanical control valve can be self-adjusting to maintain a synchronized change in height.
