TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
Page 221 of 1205
TM 9-2320-387-24-l ENGINE COOLING / FROM 6, \ DIAGNOSTIC FLOWCHART _ KNOWN INFO COOLANTOK PRESSURE CAP OK HOSES OK SURGE TANK OK OIL COOLER OK ENGINE FAN OK POSSIBLE PROBLEMS RADIATOR WATER PUMP 8 PULLEY SERPENTINE BELT INSPECT THE RADIATOR. IS IT IN GOOD CONDITION (FINS NOT BADLY BENT OR BLOCKED)? ST OPTIONS LOCK REASON FOR QUESTION Bent or blocked fins prevent efficient cooling of the coolant. KNOWN INFO COOLANT OK PRESSURE CAP OK RADIATOFUHOSES OK SURGE TANK OK OIL COOLER OK ENGINE FAN OK POSSIBLE PROBLEMS WATER PUMP 8 PULLEY SERPENTlNE BELT KNOWN INFO RADIATORMOSES OK SURGE TANK OK OIL COOLER OK ENGINE FAN OK PUMP 8 PULLEY OK POSSIBLE PROBLEMS SERPENTlNE BELT MERNAL ENGINE LEAKS INSPECT THE WATER PUMP AND PULLEY. ARE THEY IN GOOD CONDITION? LOOK AND LISTEN. IS THE SERPENTINE BELT IN GOOD CONDITION? VISUAL INSPECTION OF BELT TENSIONER PosmoN. REASON FOR QUESllON If belt tensioner has fully retracted, belt is to be replaced because it will not drive the fan PwedY. 2-164