5 -27
Fuel injection nozzle
Fuel injection pipe
Fuel return pipe
Fuel injection pump
Main fuel filter
Fuel tank
5-11. General maintenance (When required)
(1) Air-bleeding from Fuel system
z The air in the fuel may cause weak injection or the failure of engine start or stop.
To prevent such failure, bleed the air from fuel system.
< Fuel system >
z After replacing fuel pre-filter or fuel filter, bleed
air in the fuel system.
1) Turn key switch ON position.
2) Press down manual pump several times in the
right figure.
3) Press down manual pump in the right figure
several times to fill the fuel system with fuel.
The air shall bleed out from fuel system.
Manual pump
Fuel filter
Fuel feed pump
Fuel pre-filter
Burner
▶When changing fuel filter or fuel pre-filter, it is not needed to bleed the air from the
high pressure pipe.
Notice
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