LS tractor MT5 Series - General Maintenance (When Required); Air-Bleeding from Fuel System

5 -30
5-13. General maintenance (When required)
(1) Air-bleeding from Fuel system
 The air in the fuel system may cause weak injection or the failure of engine start or stop.
To prevent such failure, bleed the air from fuel system.
Fuel injection nozzle
Fuel injection pipe
Fuel return pipe
High pressure pump
Fuel tank
Fuel pre-filter
Manual feed pump
Common Rail
Manual pump
Main fuel filter
 After replacing fuel filter, bleed air in the fuel
system.
1) Turn key switch to “ON” position.
2) DO NOT open fuel lines to bleed air from the
fuel system.
3) Press down the manual feed pump several
times in the right figure to fill the fuel system with
fuel.
The air shall be bled out from the fuel system.
▶When changing the fuel filter only, it is not necessary to bleed air from the fuel
injection pipes.
Notice
▶ HIGH PRESSURE FUEL. When the engine is running, do not loosen the fuel
injection pipes to bleed air from the fuel system.
Danger
Main fuel filter
Fuel pre-filter