TM-9-2320-387-10 HMMWV Operator Manual Download
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TM 9-2320-387-l 0 0 I 0 J 0 K 0 L 0 M 0 N 0 0 0 P FAN - Pulls outside air through radiator to remove heat from coolant. HYDRAULIC CONTROL VA.LSrE - Directs hydraulic fluid to provide required pressure to actuate fan clutch as required by engine temperature. Hydraulic pressure supplied by power steering pump. TIMK DELAY MODULE - Sends delayed signal to fan clutch solenoid for delay of fan actuation to provide needed horsepower for engine acceleration. FAN CLUTCH SOLENOID -Actuates hydraulic control valve as required by coolant temperature. WATER PUMP - Driven by serpentine belt, provides circulation of coolant through cooling system. FAN CLUTCH - Hydraulically actuated by pressure from hydraulic control valve to control operation of fan. Hydraulic pressure supplied by power steering pump. DRAINVALVE- Drainin g point for radiator and cooling system. RADIATOR SHROUD - Permits a greater concentration of air to be pulled through the radiator. 1-17