TM 9-6115-730-24
0003
ENGINE STARTING SYSTEM - Continued
Figure 1. Engine Starting System.
FUEL SYSTEM
The fuel system (Figure 2) consists of hoses, steel injector piping, fuel tank, fuel filter/water separator, fuel transfer
pump, and injectors. The fuel transfer pump draws fuel from the fuel tank through a fuel filter/water separator that
removes water and small impurities. The fuel is then pushed through the secondary fuel filter that removes even
smaller particles from the fuel. The fuel then enters a fuel manifold servicing unit injectors. Through the cam-
actuated injectors fuel enters the diesel engine combustion chamber, where it is mixed with air and ignited. The
fuel that is not used is cooled and returned to the fuel tank via an excess fuel return line. When the fuel level is
low, the fuel level switch will either supply power to the external auxiliary fuel pump for external fuel supply or shut
down the TQG to prevent it from completely running out of fuel. If a diesel engine runs out of fuel, it is
necessary to fill the fuel filters, purge all air from the lines and pumps, and bleed all injectors.
