2-9. TRAILER CONNECT/DISCONNECT (CONT).
Apply parking brake (3) and place transmission range selector (4) to Neutral (N). Shut off truck
Rotation locking pin should be in locked (UP) position to prevent coupler rotation during
Lock rotation locking pin (5) on coupler (2).
Lift up locking gate (6) on coupler (2).
Coupler jaw will drop open when Step (7) is performed correctly.
Pull locking lever (7) out and pull lever (8) back at the same time to open coupler jaw (9).