TM 9--2350--292--20--10005 00--2THEORY OF OPERATION -- CONTINUED0005 00ENGINE -- CONTINUEDThe engine’s fuel system primary and fuel/water separator--type secondary fuel filters have top--mounted bleedervalves to assist in the removal of air from the fuel system. Water is removed automatically by a constant bleed ori-fice in the primary fuel filter and an automatic water drain in the fuel/water separator filter.The forced--feed engine lubrication system consists of three circuits: the scavenge circuit, the main or pressurecircuit and the piston cooling circuit. Each circuit is operated independently by one oil pump which consists of fourseparate pump sections.The engine crankcase is vented by the crankcase breather system which exhausts through the crankcase breathertube at the left turbosupercharger exhaust outlet.The engine is equipped with two intake manifold heaters which are installed in the air intake system between theintake manifold elbows and the turbosuperchargers. The heaters, when operated, preheat the air entering the cyl-inders to facilitate cold--weather starting and cold--weather idle operation.The engine is equipped with a 650--amp, 28--V dc generator and a 24 V dc solenoid--operated starter.1 Smoke generator manual fuelshutoff valve2 Front crankcase breather tube3 Fire extinguisher tube4 Speed governing solenoid5 Oil filter bypass valve6 Manual fuel shutoff7 Fuel pump assembly8 Primary fuel filter9 Oil pressure warning switch10 Oil pressure gage transmitter11 Oil pressure regulator valve12 Fuel check valve (Fuel back-flow valve)13 Damper housing oil drain valve14 Power takeoff coupling15 Cylinder head oil drain tube16 Manifold heater fuel filter17 Manifold heater fuel solenoidvalve18 Oil cooler bypass valve19 Oil sampling valve cock20 Engine oil cooler thermostaticbypass valve21 Oil filter22 Fuel/water separator12345678920101112131415171618192122
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
