Bleeding Fuel System Of Air - Volvo EC330B Operator's Manual

Service and maintenance
138 Fuel system
A

Bleeding fuel system of air

Make sure that fuel under high pressure cannot come into
contact with unprotected parts of your body when working
with fuel injection equipment.
If the tank has been run dry or if air has got into the system for oth-
er reasons, the system must be bled for air.
IMPORTANT
Do not attempt to start the engine under any circumstances
until the system has been bled, otherwise the injection pump
can be seriously damaged.
General
1 Clean around bleeder nipples (B) on the fuel filter housing.
NOTE :
Do not spill fuel on electrical components.
Fuel filter
B
2 Connect a transparent plastic hose to the fuel filter housing
bleeder nipple (B).
3 Open bleeder nipple (B) and pump with hand pump (A) until
the fuel, which flows out, is free from air bubbles.
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4 Tighten bleeder nipple (B) while fuel flows out.
After air bleeding
5 Run the engine at raised idling speed for approx. 10 minutes.
6 Check after starting there are no leaks.
WARNING!