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5-12. General maintenance (When required)
(1) Air-bleeding from Fuel system
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The air in the fuel system may cause weak injection and the failure of engine start or stop. To prevent
such failures, 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
①
Air-bleeding from Fuel Filter
1. When replacing the fuel filter element, open the
cock valve and turn key switch to ON position.
2. Wait for about 10~15 seconds, and then the air-
bleeding shall be completed.
Fuel injection nozzle
Fuel injection pump
Fuel filter
Fuel injection pipes
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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.
Warning
Fuel feed pump
Fuel filter
Cock valve
Fuel pre-filter