Figure 1–9. Engine Lubrication System

ARMY TM 9-6115-464-12 AIR FORCE TO 35C2-3-445-1 NAVY NAVFAC P-8-624-12 1-17 ENGINE LUBRICATION SYSTEM. I The Engine Lubrication System (Figure 1–9) consists of an oil pan, dip- stick, pump, pressure sensor, filter, and oil level sensor. The oil pan is a reservoir for engine lubricating oil. The dip- stick indicates oil level in the oil pan. A pump draws oil from the oil pan and through a screen removing large impuri- ties. The oil then passes through a canister type filter where small impurities are removed. From the filter, oil is distributed to the engine’s internal moving parts. After passing through the engine block, the oil returns to the oil pan. The engine pressure gauge is a dial indicator type gauge which is calibrated in psig from 0 to 60. It measures engine lubrication oil pressure. Normal indication is from 20 to 55 psig. The engine will shut off automatically if the oil pressure drops below 20 psi. OIL PAN PUMP OIL PRESSURE SENSOR FILTER BLOCK Figure 1–9. Engine Lubrication System 1-19