ARMY TM 9-6115-672-14 AIR FORCE TO 35C2-3-444-32 MARINE CORPS TM 09244A/09245A-14 1-23 1.16.6.4 The skid base provides a stable base for the generator set during operation and transport, and allows the generator set to be moved by forklift or mounted on a trailer. 1.16.7 GeneratorSetCoolingSystem. 1.16.7.1 The Generator Set Cooling System (Figure 1-23) includes air intake and exhaust grilles, baffles, and ducting within the generator set housing and the engine driven radiator cooling fan. The air intake grilles are located in panels on both sides of the generator set housing. The air exhaust grille is located in the housing top panel. 1.16.7.2 Air is drawn in through the air intake grilles and forced through the engine coolant radiator and out of the generator set through the exhaust grille by the radiator cooling fan. Most of the cooling air flows externally past the generator assembly and engine. Some cooling air is circulated internally through the generator assembly by a generator fan which is an integral part of the AC generator assembly. Baffles, ducting, and sound absorbing material are used to control the air flow through the generator set and to reduce sound transmission through the grilles. 1.16.8 EngineCoolingSystem. 1.16.8.1 The Engine Cooling System (Figure 1-24) consists of a radiator, hoses, thermostat, coolant temperature sender, CIM display screen COOLANT TEMP indicator, water pump, oil cooler, cooling fan, and cooling jackets (part of engine). 1.16.8.2 The water pump forces coolant through passages (cooling jackets) in the engine block and cylinder head where the coolant absorbs heat from the engine. When the engine reaches normal operating temperature, the thermostat opens and the heated coolant flows through the upper radiator hose assembly into the radiator. The cooling fan circulates air through the radiator where the coolant temperature is reduced. 1.16.8.3 The DCS, in conjunction with the fault system, provides automatic shutdown in the event coolant temperature exceeds 230 5°F (110 ± 3°C). The CIM display screen COOLANT TEMP indicator indicates the engine coolant temperature from 100°F to 250°F (38°C to 121°C). 1.16.8.4 The water pump also circulates coolant through the engine oil cooler to cool the engine oil. 1.16.9 LubricationSystem. 1.16.9.1 The Engine Lubrication System (Figure 1-25) consists of an oil pan, dipstick, pump, oil cooler, oil sample valve, oil pressure sender, CIM display screen OIL PRESSURE indicator, oil drain valve, and filter.
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