TM 55-2210-224-12
Table 4-2. Unit Troubleshooting (continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
ENGINE (cont)
6.
ENGINE DOES NOT CRANK.
Step 1.
Check for incorrect position of switches and controls.
Set switches and controls in correct positions (para 2-10).
WARNING
· Remove rings, bracelets, wristwatches, and neck chains before working around the locomotive.
Jewelry can catch on equipment and cause injury, or may short across an electrical circuit and
cause severe burns or electrical shock.
· Be careful not to short out battery terminals. Do not smoke or use open flame near batteries.
Batteries may explode from a spark. Battery acid is harmful to skin and eyes.
Step 2.
Check for dead battery.
Charge battery (TM 9-6140-200-14). Replace battery if unable to charge (para 4-30).
Step 3.
Check for cranking contactor not closing.
Notify intermediate direct support maintenance.
Step 4.
Check for open circuit at start button, operating coil of cranking contactors, or control switch.
Notify intermediate direct support maintenance.
Step 5.
Check for a seized engine, air compressor, or main generator armature.
Notify intermediate direct support maintenance.
Step 6.
Check for EMER SHUTDOWN switch in STOP position.
Set EMER SHUTDOWN switch to RUN position.
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