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 TM 9-2330-380-14&P
Explanation of the columns in Table 3-1 are as follows:
MALFUNCTION. A visual or operational indication that something is wrong with the semitrailer.
TEST OR INSPECTION. A procedure to isolate the problem in a component or system.
CORRECTIVE ACTION. A procedure to correct the problem.
Troubleshooting
Procedure
Page
ELECTRICAL SYSTEM
1.
Alllightsfailtolight ........................................................................................................................... 3-3
2.
One or more lamps will not light ........................................................................................................ 3-4
3.
All chassis lights are on and van clearance lights are off ....................................................................... 3-4
4.
Directionalsignalsinoperative ........................................................................................................... 3-5
5.
All 110-volt lamps fail to light (M129A4 Only) ................................................................................... 3-5
6.
All 110-volt receptacles inoperative (M129A4 Registration Numbers NX0RKB and subsequent) ............ 3-5
BRAKE SYSTEM
7.
Brakes will not release ..................................................................................................................... 3-5
8.
No brakes or weak brakes .............................................................................................................. 3-6
9.
Grabbing brakes ............................................................................................................................. 3-7
SUSPENSION SYSTEM
10. Semitrailer sags to one side .............................................................................................................. 3-7
WHEELS, HUBS, BEARINGS AND TIRES
11. Air leakage from tires .......................................................................................................................
12. Severely worn, chafed, scuffed or show sudden increase in visible wear ................................................
13. Noisywheels ..................................................................................................................................
14. Wobblywheels ...............................................................................................................................
LEVELING JACK AND LANDING GEAR
15. Erraticoperationorbinding .............................................................................................................. 3-8
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