2-15. QUARTERLY, SEMI-ANNUAL, AND ANNUAL PREVENTIVE MAINTENANCE SERVICES.
There are no quarterly or annual preventive maintenance services for this equipment at the unit maintenance
Section IV. TROUBLESHOOTING
2-16. TROUBLESHOOTING, Table 2-2 (Trailer) and Table 23 (ROWPU).
This section contains those malfunction checks and corrective actions which isolate defects which can be
corrected by performance allocated to unit maintenance by the Maintenance Allocation Chart (MAC). Refer to
Table 22. Troubleshooting (Trailer) (ARMY)
TEST OR INSPECTION
Manually check trailer cable for proper connection to receptacle on towing vehicle.
Connect cable properly.
With cable connected to towing vehicle, visually check both receptacle on towing vehicle and plug
on cable to be sure all contacts are free of dirt, oil, and other contaminants. Check for defective
a. Clean all connectors to remove corrosion and contaminants.
b. Replace defective plug.
Visually and manually check electrical cable and wiring harness for loose or corroded
connections, damaged cable, or wiring harness.
a. Tighten loose connections.
b. Clean corroded connections.
c. Replace wiring harness.
d. Repair or replace damaged cable.
Step 4. Visually check ground connection at receptacle and check ground wire on towing vehicle.
If ground wire is loose or making poor contact, reposition wire and tighten connections.
Visually check all lamps for illumination.
Remove and replace lamps that do not illuminate.
1. LIGHTS DON'T WORK