Patent attributes
An agricultural system includes an arm of a header. The arm is configured to rotate about a pivot joint. The agricultural system also includes a fluid-filled biasing member, an actuator, and a controller. The fluid-filled biasing member is configured to couple to the arm and to impart a torque onto the arm. The actuator is coupled to the fluid-filled biasing member and is configured to move the fluid-filled biasing member relative to the actuator to change the torque imparted by the fluid-filled biasing member onto the arm. The controller configured to receive an input indicative of a target flotation pressure of the arm output a signal to instruct the actuator to set a position of the fluid-filled biasing member relative to the actuator based at least in part on the target flotation pressure of the arm.