TM10-3930-660-20 ENGINE COOLING SYSTEM WATER  PUMP. Draws water from the radiator and sends it through the cylinder block to cool the engine and then returns it to the radiator. ENGINE OIL COOLER. The baffle on this cooler allows engine engine  oil. FAN . The fan is powered by the engine. It helps lower the as it passes through the radiator. coolant to cool the temperature of the water RADIATOR . Has a filler cap which permits adding water or coolant to the system. Water or coolant circulates through the radiator to be cooled after leaving the cylinder  block. 1-17. TRANSMISSION COOLING AND LUBRICATION SYSTEM TRANSMISSION OIL COOLER. Cools transmission oil and helps prevent transmission overheating. Oil is drawn through the cooler by the transmission. TRANSMISSION OIL FILTER. Removes particles from the transmission oil which could cause damage to the internal parts of the transmission. 1-10