TM 9-2350-261-20-1TRANSMISSIONThe transmission is a three speed, constant mesh, planetary gear train with hydraulic torque converter andlockup clutch. It automatically selects the proper gear based on road and load conditions. The transmissiondelivers power from the transfer gearcase to the differential.EXHAUST SYSTEMMajor exhaust system parts are the exhaust manifolds, and muffler. The exhaust manifolds carry the exhaustgases to the muffler. The muffler cuts down engine noise and allows exhaust to escape outside the carrier.COOLING SYSTEMThe cooling system cools the engine and transmission. It consists of a fan, fan drive belts, radiator, coolantpump, auxiliary tank, transmission oil cooler and thermostats. The cooling system contains approximately 14gallons of liquid coolant. The liquid coolant is pumped by the coolant pump from the radiator and circulatedthrough the engine and thermostat and back to the radiator where it loses heat to the atmosphere. Thisprocess keeps the engine, transmission, and differential temperature in a safe operation range.As coolant flows through the engine, it absorbs heat from the engine and transmission. The heated coolantthen flows to the radiator to remove coolant heat. The coolant fan pulls outside air in and through the radiatorto remove heat. The fan is powered by the transfer gearcase.The radiator auxiliary tank acts as an overflow tank to keep the cooling system from overpressurizing. It alsoremoves air from the engine coolant.ENGINE AIR SYSTEMThe engine air system allows air to enter the engine. The air cleaner cleans air that enters the engine. Air isfiltered through a reusable filter element before delivery to the engine. An air filter indicator shows when theelement is clogged and needs cleaning or replacing. After being filtered, the air moves through the air horn andinto the engine cylinders.2-3
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