TB 9-2320-279-13&P-4
0013
10
Figure 9.
17. Slowly back tractor vehicle until fifth wheel jaws lock around kingpin. Stop tractor vehicle.
NOTE
Daylight should not show between top of fifth wheel plate and bottom of semitrailer.
18. Assistant visually checks that kingpin is in fifth wheel throat.
19. Ensure primary lock release handle (8) is completely in.
8
Figure 10.
NOTE
If coupling is not secure, rock tractor vehicle back and forth slowly until kingpin is locked in
fifth wheel.
20. Inch tractor vehicle forward to check coupling.
21. Set transmission range selector (11) to N (neutral).
