TM 9-2320-392-10-2
FIFTH WHEEL TROUBLESHOOTING - Continued
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FIFTH WHEEL TROUBLESHOOTING - Continued
Table 1. Fifth Wheel Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
FIFTH WHEEL
5.
If fifth wheel still does not
DOES NOT LOCK
lock when coupling trailer to
WHEN COUPLING
tractor, notify Field
TRAILER TO
Maintenance.
TRACTOR -
Continued
2.
EXCESSIVE
Notify Field Maintenance.
MOVEMENT OF
TRAILER KING PIN
IN FIFTH WHEEL
3.
FIFTH WHEEL
1.
Check fifth wheel
Lubricate fifth wheel (WP
DOES NOT UNLOCK
for proper
WHEN
lubrication (WP
DISCONNECTING
TRAILER FROM
Item 1).
TRACTOR
2.
Check that coupler
1.
Pull out secondary lock
jaws lock open.
release handle and latch in
position.
2.
Pull out primary lock release
two times.
3.
Put primary lock release
handle in locked position.
4.
Check that coupler jaws stay
open with primary lock
release handle in locked
position.
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