TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
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KNOWN INFO TEST OPTIONS Visual Inspection REASON FOR QUESTION KNOWN INFO TEST OPTIONS Visual Inspection YES NO NO YES WARNING Read WARNING on following page. d1. ENGINE OVERHEATS (CONT) Tighten water pump hardware or replace water pump (para 6-12). Is water pump secure and free from damage? If damage is present, water pump is faulty. Does thermostat operate properly? REASON FOR QUESTION If thermostat does not operate properly, thermostat is faulty. TM 9-2320-365-20-1 Replace thermostat (para 6-5). 4. 5. Coolant level OK. Radiator core free of debris. WATER TEMP gage OK. Radiator OK. Upper and lower coolant hoses OK. Radiator cap OK. Radiator overflow tank and hoses OK. Cooling system pressure OK. Radiator fan shroud OK. POSSIBLE PROBLEMS Faulty water pump. Faulty thermostat. Faulty fan clutch. Coolant level OK. Radiator core free of debris. WATER TEMP gage OK. Radiator OK. Upper and lower coolant hoses OK. Radiator cap OK. Radiator overflow tank and hoses OK. Cooling system pressure OK. Radiator fan shroud OK. Water pump OK. POSSIBLE PROBLEMS Faulty thermostat. Faulty fan clutch. 2-136 Change 2