TM 55-2815-574-24
FIELD MAINTENANCE
ENGINE
TROUBLESHOOTING PROCEDURES - ABOVE NORMAL READING ON ENGINE COOLANT
TEMPERATURE GAUGE
INITIAL SETUP:
Personnel Required
References (cont.)
Engineer 88L
References
TM 55-1925-205-10
TM 55-1925-205-23
NOTE
The following procedure is typical for both port and starboard engines.
Check oil pressure with the engine warmed up and a minimum water outlet
temperature of 160F (71C).
TROUBLESHOOTING PROCEDURE
ABOVE NORMAL READING ON ENGINE COOLANT TEMPERATURE GAUGE
SYMPTOM
Diesel engine has above normal engine coolant operating temperature.
MALFUNCTION
Insufficient heat transfer.
CORRECTIVE ACTION
1.
Clean cooling system and heat exchanger with cooling system cleaner. Thoroughly flush
system to remove scale deposits (WP 0133).
2.
Perform operational check of diesel engine (TM 55-1925-205-10).
MALFUNCTION
Faulty water pump.
CORRECTIVE ACTION
Repair water pump. Contact Maintenance Supervisor.
0015-1