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 TM 55-1905-219-14-6
3-146.3. FUEL LINES AND-- MANIFOLD CONNECTIONS - MAINTENANICE INSTRUCTIONS
a. The fuel system includes the following which are integral to the engine fuel injectors, fuel pipes and
fuel manifold. The external components of the fuel system are a fuel filter, a fuel strainer, a
fuel pump and fuel lines.
b. Fuel is drawn from the supply tank through the fuel strainer, and enters the fuel pump at the inlet side.
Leaving the pump under pressure, the fuel is forced through the fuel filter and into the inlet fuel manifold, then
through the fuel pipes and into the inlet side of each fuel injector.
c. The fuel manifold is identified by the words IN (top passage) and OUT (bottom passage) cast into the
engine block.
d. Surplus fuel returns from the outlet side of the injectors to the fuel return manifold and then back to
the supply tank.
This task covers:
a.
Inspection
b. Replacement
INITIAL SETUP
Test Equipment
References
None
None
Equipment
Special Tools
Condition Condition Description
None
None
Material/Parts
Special Environmental Conditions
None
Do not drain fuel into bilges.
Use the oil/water separation
and recovery system to collect
drained oil. Discard properly.
Personnel Required
General Safety Instructions
1
None
3-2530
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