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 TM 55-1905-220-14-1
b. The Fuel System is shown in Figure 1-50. Fuel is drawn from the supply tank through the fuel strainer by a gear-type
fuel pump. Then it is forced through a filter and into the fuel inlet manifold in the cylinder head and to the injectors.
Excess fuel is returned to the supply tank through the fuel outlet manifold and connecting lines. Since the fuel is
constantly circulating through the injectors, it serves to cool the injectors and also carries off any air in the fuel system.
Figure 1-50. Fuel System
c. The Air System is shown in Figure 1-51. Air for scavenging and combustion is supplied by a blower which pumps air
into the engine cylinders by way of the air box and cylinder liner ports. All air entering the blower passes first through an
air cleaner.
Figure 1-51. Air Flow Through Blower And Engine
1-88
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