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Maintenance: Fuel System
Fuel system
WARNING! Always protect your hands when carrying out leak detection. Escaping fluids under pressure can
pierce bodily tissue and cause serious injury. Risk of blood poisoning. Always cover any electric component
if it is located under the fuel filter. Otherwise it might be damaged by fuel spills.
WARNING! Work performed on the fuel system must be done on a cold engine. Fuel leaks and spills on hot
surfaces or electrical components can cause fires.
Plus d'informations sur : www.dbmoteurs.fr
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Bleeding the fuel system
IMPORTANT! Place a drip pan under the fuel filt-
ers.
Prime the fuel filters and fuel injection pump in the fol-
lowing sequence:
Bleeding the fuel filter
1. Put the fuel filter switching cock in the left filter
bleed position and loosen the left air vent plug.
2. Turn the priming pump plunger counterclockwise
to unlock the mechanism.
3. Move the plunger up and down until the fuel flows
free of bubbles from air and tighten the air vent
plug.
4. Put the fuel filter switching cock in the neutral po-
sition and repeat the above-described procedure
for the other fuel filter.
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