TM 1-1500-204-23-53-4.12 Change 3h.OilSystemComponents. For each enginetransmission there is a complete and separate oil system(Figure 3-3.K). The oil system is made up of the transmis-sion sump, transmission lubrication jets, check valve,electrical chip detector, oil temperature transmitter(bulb), oil pump, oil pressure transmitter (transducer),filter and relief valve assembly, oil tank, and oil cooler.Although the oil systems of the engine transmission andengine–combining transmission are not interconnected,oil pressure and circulation for both types of transmis-sions are provided from a six–element oil pump mountedonto and driven by the engine–combining transmission.Figure3-3.K. Engine Transmission Oil System.The engine–combining transmission is a three–sec-tion tank that is mounted onto and above the engine–combining transmission: one section for the right–handengine transmission, one section for the left–hand en-gine transmission, and one section for the engine–com-bining transmission. The oil filter and relief valve assem-bly for each of the engine transmissions andengine–combining transmission are mounted on the aftside of the oil tank. The oil cooler for the engine transmis-sions is mounted on top of the combining transmission.It receives cooling air from the fan assembly mounted ontop of the combining transmission.
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