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TM 9-2320-270-10
FIFTH WHEEL - CONTINUED
COUPLING AND UNCOUPLING
Preparing for coupling (before backing under semitrailer)
1.
2.
3.
4.
5.
Lubricate top of fifth wheel (5) (see LO 9-2320-270-1 2)
Pull fifth wheel lock secondary lock handle (6) all the way out and hook in the out
posiiton.
Fifth wheel lock primay lock handle (7) can be in either OUT or IN position to Iatch.
Check that fifth wheel ramps (8) are Ievel with, or below angle of pickup ramps
(9). If ramps (8) are not level with or below angle of approach ramps (9), remove
obstructions and position fifth wheel ramps (8) properly.
Check condition of fifth wheel to frame mountIngs (10) and that mounting bolts
(11) are tight. If mountings (10) are not In good condition or bolts (11) are not
tight, notIfy Organizational Maintenance.
2-83
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