Patent ID: 7783404

Claim:
A method for calibrating a FNR lever movable for controlling a propulsion driveline of an agricultural windrower, comprising steps of: providing a FNR lever assembly including a FNR lever having a neutral position and movable in relation to the neutral position in a first direction and in a second direction opposite the first direction, and a sensor disposed and operable for sensing positions of the FNR lever and outputting signals representative thereof; providing a programmable control module in connection with the sensor and operable for receiving the signals representative of the FNR lever position, the programmable control module being connected to the propulsion driveline and programmed for automatically outputting signals thereto for controllably operating the propulsion driveline for propelling the windrower in a direction and at a speed which are functions of the sensed FNR lever position; prompting a user to move the FNR lever in the first direction to the neutral position; as the FNR lever is moved in the first direction toward the neutral position responsive to the prompt, sensing at least one actual position of the FNR lever and outputting a signal representative thereof to the control module; and comparing a value of the signal representative of the actual position of the FNR lever to predetermined high and low values for the signal, and if the value of the signal representative of the actual position is greater than the predetermined high value or below the predetermined low value, then determining that a fault condition exists; and if the value of the signal representative of the actual position is less than the predetermined high value and greater than the predetermined low value, then storing the value of the signal representative of the actual position for use in determining a speed of movement for the windrower when the FNR lever is subsequently in the actual position.