Ensure your skid steer loader door is latched properly with door sensor wiring for the door latch. The sensor deactivates the lift and tilt valves when the door is open. Also order two rivets (6677193). Connects to the door harness and the door latch. To check for correct operation, open the door. The lift and tilt valve light will flash, an audible tone will sound, and the message DOOR will appear in the display. Close the door, and the lift and tilt valve light will go out and the display will return to machine hours.