5 -44
5-12. General maintenance (When required)
Fuel tank
Fuel injection
nozzle
Fuel injection
pump
Fuel filter
Fuel injection pipes
Fuel feed pump
(1) Air-bleeding from Fuel system
Air in the fuel system may cause weak fuel injection or a failure of the engine start or stop. To
prevent such a failure, bleed the air from the fuel system.
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When changing the fuel filter only, it is not necessary to bleed air from the fuel
injection pipes.
Notice
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HIGH PRESSURE FUEL. When the engine is running, do not loosen the fuel
injection pipes to bleed air from the fuel system.
Danger
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Fuel leaked or spilled onto hot surfaces or electrical components can cause a fire.
To help prevent possible injury, turn the key switch off when changing fuel filters or
water separator elements. Clean up fuel spills immediately.
Warning
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Do not adjust or modify the fuel injection system arbitrary. It can cause a serious
fault related to engine performance and increase of excessive exhaust emissions.
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Do not allow dirt to enter the fuel system. Thoroughly clean the area around a fuel
system component that will be disconnected. Fit a suitable cover disconnected fuel
system component. Do not fill the new filter with fuel. Invisible fine contaminants
can enter the injection pump and it may cause damage to the fuel injection system.
Caution
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