TM-9-2320-366-20-1 MTV Unit Maintenance Manual M1083 Series - Volume 1 Download
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d1. ENGINE OVERHEATS (CONT) KNOWN INFO KNOWN INFO TEST OPTIONS YES NO NO YES POSSIBLE PROBLEMS Is water pump secure and free from damage? WARNING Read WARNING on following page. Tighten water pump hardware or replace water pump (para 6-12). Does thermostat operate properly? TM 9-2320-366-20-1 Replace thermostat (para 6-5). 2-144 Change 2 POSSIBLE PROBLEMS 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. 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. Charge air cooler OK. Water pump OK. Faulty thermostat. Faulty fan clutch. TEST OPTIONS REASON FOR QUESTION Visual Inspection If damage is present, water pump is faulty. If thermostat does not operate properly, thermostat is faulty. REASON FOR QUESTION Visual Inspection