TM 9-2320-211-10-1
a.
Tractor Truck (M52A2) - Cont.
Fifth wheel (semitrailer coupler)
1.
90 left or right, jaws can be
locking plunger lever. Is pulled
unlocked by locking plunger
forward to make fifth wheel ready
lever ( 1).
for coupling, and to unlock jaws (4)
Fifth wheel wedges. Full-in
to separate semitrailer from tractor.
position locks walking beam for on-
2.
Locking plunger safety latch. When
highway travel. Full-out position
in down position, keeps jaws from
unlocks walking b earn for off-
being opened. When latch is moved
highway travel.
4-17
