TM 10-4130-237-14
Table 4-2. Unit Troubleshooting (Cont)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 7. Test armature group (para 4-25).
Replace armature group (para 4–25).
Step 8. Check engine compression (para 4-19). Should not vary more than 25 percent between cylinders.
If greater than 25 percent variance, notify your supervisor.
2. ENGINE FAILS TO CRANK WITH EXTERNAL POWER.
Step 1. Check for proper voltage to 12/24 VOLT INPUT FOR STARTING connection. Obtain proper voltage.
Step 2. Check for proper voltage at back of 12/24 VOLT INPUT FOR STARTING connection (para 4–34).
If voltage incorrect, replace connection (para 4-35).
Step 3. Test starter button S7 for voltage (para 4-23).
Replace starter button S7 (para 4-23).
Step 4. Check for proper voltage at starter (para 4-27).
Replace starter cable or starter (para 4-27).
Step 5. Check ring gear for damage (para 4-28).
Replace ring gear (para 4-28). If problem not corrected, notify your supervisor.
3. ENGINE STOPS SUDDENLY.
Step 1. Check to see if water supply temperature is below 60°F (16°C) or above 120°F (49°C).
Water chiller is not designed to run if water supply temperature is below 60°F (16°C) or above
120°F (49°C). Do not run water chiller until proper conditions exist.
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