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:
NOTE
If trailer is uncoupled, do item 4. If coupled, do item 5.
Before
a.
Check coupler
Coupler jaws are
4
FIFTH WHEEL
jaws (1), primary
broken or
WITHOUT
lock release
mechanism is
TRAILER
handle (2),
damaged or will not
COUPLED
secondary lock
operate properly.
release handle
(3), linkage, and
locking plunger
(under fift h
wheel) for
damage and
proper
operation.
2-28
