TM 9-2320-209-10-1 FRAME 11 1. Set handbrake lever (1) to off (down) position. 2. With semitrailer airbrake hand control lever (2) in down (on) position, slowly move tractor forward to get positive locking of semitrailer king pin (3) with fifth wheel (4). 3. When you are sure that locking is positive, place FRONT TRANSMISSION gearshift lever (5) in N position. 4. Stop engine, (refer to para 4-6e) and set handbrake lever (1) to on (up) position. 5. Raise trailer landing gear (6). GO TO FRAME 12 4-227