TM 5-3825-229-14&P
3-4. SYMPTOM INDEX (cont)
PUMP
Pump will not prime ..................................................................................................................................3-12
Pump will not hold prime .................................................. ........................................................................3-13
Poor performance - low pressure and/or low-volume output .....................................................................3-13
Leakage around the pump shaft while pumping.........................................................................................3-14
Suddenly stops pumping ... .............................................. .......................................................................3-14
Stops pumping until engine is stopped and restarted ................................. ............................................3-14
Spray nozzles do not spray when spray nozzle switches are turned on at control panel
(and air supply is available from truck-tractor) .................................. ........................................................3-15
ENGINE
Engine will not turn or crank ................................................ .....................................................................3-16
Engine will not start ........................................................ .........................................................................3-16
Engine hard to start ..................................................................................................................................3-16
Engine stops suddenly ..................................................... ........................................................................3-17
Engine stops frequently ............................................................................................................................3-17
Engine shows loss of power .................................................. ...................................................................3-17
Engine runs unevenly and vibrates excessively ........................................................................................3-18
Engine emits black smoke from the exhaust ...................................... ......................................................3-18
Engine emits bluish-white smoke from exhaust .................................... ....................................................3-18
Engine detonates or knocks ......................................................................................................................3-18
Table 3-1. Operator Troubleshooting Table
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
SEMITRAILER ELECTRICAL SYSTEM
1.
ALL LIGHTS DO NOT LIGHT
Step 1. Check lights on towing vehicle, including turn signals and stop lights.
a.
If towing vehicle lights come on, go to Step 2.
b.
If the towing vehicle lights do not light, notify Organizational Maintenance.
WARNING
To prevent injury to personnel, disconnect the electrical power source before performing
any troubleshooting on wiring harness, connectors or lights.
3-6
