Volvo Penta D4 Operator's Manual page 74

Maintenance
72
Fuel system, bleeding
The fuel system must be bled after a filter change, if
the fuel tank has been run dry and after a long-term
stoppage.
IMPORTANT!
Never disconnect the pressure pipe.
1 Connect a transparent hose to the bleed nipple (1).
Feed the hose to a container to avoid spillage.
2 Open the bleeding nipple and pump fuel with the
hand pump (2) until the fuel is free from bubbles.
Close and tighten the bleed nipple.
3 Pump a further 10 times on the hand pump. Resist-
ance in the hand pump can feel heavy, but this is
completely normal and necessary to bleed the sys-
tem.
4 Remove the hose and fit the protective cap to the
bleed nipple.
Fuel Pre-filter, Change
WARNING!
Working with or going close to a running engine is a
safety risk. Watch out for rotating components and hot
surfaces.
1 Close the fuel stop cock on the fuel tank. Place a
container beneath the fuel filter.
2 Remove the cover by loosening screw (1).
3 Replace the insert and refit the cover.
4 Open the fuel stop cock and bleed the fuel system,
see section "Fuel system, bleeding".
5 Start the engine and check for leaks.
6 Hand in the scrapped filter at a recycling depot.
7748934 04-2008