TM 5-5420-226-20-1
SYSTEMS OPERATION - Continued
ENGINE FUEL SYSTEM. Fuel flows from tanks to primary fuel filter, through main fuel
check valve to engine-driven, vane-type fuel pump that increases fuel pressure to fuel
injector pump. Fuel from engine fuel pump is filtered through fuel-water separator into fuel
injector pump that delivers accurately measured quantities of fuel under high pressure to
each cylinder.
FUEL
RETURN
LINES
(A)
PRIMARY FUEL FILTER
(B)
FUEL BACKFLOW VALVE
(C)
FUEL-WATER SEPARATOR
(D)
FUEL INJECTOR PUMP
TA106577
2-4