If the locking arm is stuck, push and release the JOG and the RAISE buttons at the same time.
Jog the trough upward only enough to release the locking arm (fig. 2-28).
you need to raise the trough, push the RAISE button.
(4) Lower the swivel ring lock arm (fig. 2-30). Swing the trough to left or right as required. Raise the lock arm
to lock trough (if desired).
Figure 2-28. Winch Control Box.