TM 9-2320-360-10
Table 2-1. Preventive Maintenance Checks and Services (PMCS)
for the HET Tractor (Cont)
Location
Item
Interval
Item to
Procedure
Not Fully Mission
No.
Check/Service
Capable If:
Before
(3)
Put primary
4
FIFTH WHEEL
lock release
(cont)
WITHOUT
handle (2) in
TRAILER
locked
COUPLED
position.
(CONT)
(4)
Check that
(4) Coupler
coupler jaws
jaws will not
(1) stay open
stay open.
with primary
lock release
handle in
locked
position.
c.
Check that top
surface of fifth
wheel (4) and
fifth wheel
ramps (5) are
properly and
adequately
lubricated.
2-30
