Patent ID: 7920947

Claim:
Apparatus for safeing a FNR lever movable for controlling a propulsion driveline of an agricultural windrower, comprising: 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 simultaneously operable for sensing positions of the FNR lever as the lever is moved in the first and second directions and outputting a signal representative thereof; a propulsion cylinder assembly including a propulsion cylinder movable for effecting operation of the propulsion driveline, and two sensors configured and operable for sensing positions of the propulsion cylinder and outputting signals representative thereof, wherein the two sensors are configured such that sums of the signals representative of the positions of the propulsion cylinder outputted thereby are to equal a predetermined value; a programmable control module in connection with the sensor of the FNR assembly for receiving the signals outputted thereby, the control module being connected in operative control of the propulsion cylinder and operable for outputting control signals thereto for causing movements thereof which track the signals representative of the positions of the FNR lever, the control module being programmed and operable for receiving and summing the signals outputted by the two sensors for sensing positions of the propulsion cylinder and comparing the sums to the predetermined value, and if any of the sums does not equal the predetermined value, then determining that a fault condition exists.