TM 9--2815--247--34 0004 00--4 THEORY OF OPERATION -- CONTINUED 0004 00 LUBRICATION SYSTEM -- CONTINUED General -- Continued OIL PRESSURE REGULATOR VALVE DRAIN TO OIL COOLER CRANSHAFT MAIN BEARING CYLINDER TO PISTON OIL SPRAYER TO FAN CLUTCH PISTON OIL SPRAYER GALLERY OIL TO FAN HOUSING AND ACCESSORY DRIVE HOUSING--GALLERY TO INJECTION ADVANCE UNIT TO LEFT CAMSHAFT TO RIGHT CAMSHAFT ACCESSORY DRIVE HOUSING OIL PAN OIL LEVEL CONTROL PUMP RETURN PRESSURE OIL PUMP DISCHARGE TO LEFT COOLER PRESSURE OIL PUMP TO OIL COOLER RIGHT GALLERY PRESSURE OIL PUMP DISCHARGE TO RIGHT COOLER SCAVENGE PUMP RETURN OIL PUMP OIL LEVEL CONTROL PUMP PICK--UP PRESSURE OIL PUMP TO OIL COOLER LEFT GALLERY FRONT SCAVENGE OIL PUMP PICKUP PRESSURE REGULATOR VALVE OIL RETURN TO TUBRO-- SUPERCHARGER FROM OIL COOLER SCAVENGE PUMP PRESSURE REGULATOR VALVE RETURN OIL PUMP PICKUP OIL FROM COOLER AND PUMP OIL FILTER BY--PASS VALVE CONNECTING ROD BEARINGS FAN CLUTCH GENERATOR OIL RETURN (AVDS--1790--2C ONLY) MAKE UP PUMP PICK UP MAKE UP PUMP PICKUP MAKE UP PUMP RETURN TO OIL COOLER PRESSURE REGULATOR ACTUATOR OIL FROM MAIN GALLERY CRANKCASE OIL GALLERY TO CRANKSHAFT BEARINGS AND CONNECTING ROD BEARING TO FUEL METERING PUMP Figure 1--7. Engine Lubrication System