TB 9-2320-279-13&P-4
0012
WARNING
Ensure that no one is standing between vehicle and semitrailer during coupling procedure.
Failure to comply may result in injury or death to personnel.
CAUTION
Ensure tractor vehicle does not have parking brake or service brakes engaged while
assistant reels in heavy-duty winch cable and lifts semitrailer off ground. Failure to comply
may result in damage to equipment.
14. Reel in heavy-duty winch cable (14) until semitrailer gooseneck (17) is in maximum upright position. Operator
allows semitrailer and tractor vehicle to roll together.
18
14
10
17
5
Figure 6.
CAUTION
Do not run kingpin up guide ramps to prevent damage to kingpin, guide ramps, or fifth wheel.
NOTE
As semitrailer contacts tractor vehicle, second assistant should visually check that front of
semitrailer is on guide ramps.
Tractor vehicle is equipped with fifth wheel to accept 3.5 in. (89 mm) kingpin.