Loose the jam nut (1) on the center
header latch linkage.
Disconnect the ball socket from the side
header latch by pulling downward.
Twist the ball socket (2) to lengthen
or shorten the linkage only one complete turn at one time. Rotate the ball socket
clockwise to increase the travel of the center header latch linkage. Rotate the ball
socket counterclockwise to decrease the travel of the center header latch linkage.