VALVE-KT-YM 3831570 - Caterpillar

Illustration 1 g01160763
The power train oil cooler is mounted horizontally on the right side of the engine. The oil cooler is a water to oil type cooler. The oil cooler uses the coolant from the engine cooling system to cool the oil.The engine coolant enters the oil cooler at the inlet for the coolant. Coolant flows through the tubes in the cooler. The coolant removes heat from the oil. The coolant then flows out of the oil cooler through the outlet passage for the coolant. The coolant is then cooled by the engine cooling system.High temperature power train oil enters the cooler from the torque converter outlet relief valve. This oil enters the oil cooler at the inlet for the power train oil. The oil flows along the tubes in the oil cooler.The heat is removed from the oil and the heat is transferred to the engine coolant. The coolant temperature is cooled by the engine cooling system. The power train oil exits through the outlet passage for the power train oil. The oil now has a cooler temperature.The cooled oil then flows to the priority valve. The priority valve divides the flow between the transmission and the steering and clutches for lubrication and for cooling.