Fuel System, Bleeding - Volvo Penta D5 Operator's Manual

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47713336 03-2021 © AB VOLVO PENTA
Switchable fuel filters
Switchable fuel filters can be changed while the engine
is running since the flow of fuel can be cut off to one
filter at a time.
WARNING!
Working with or approaching a running engine is a
safety risk. Watch out for rotating components and hot
surfaces.
1 Turn the lever (2) to its right-hand end position.
2 Unscrew the left-hand fuel filter. Use a filter wrench
if necessary.
3 Screw the filters on by hand until they make contact
with the sealing surface. Then screw a further half
turn, not any more.
4 Vent the system by opening the left-hand bleed
screw (1) on the filter bracket. Put the lever in
operating position (straight up). Close the bleed
screw when air free fuel flows out.
5 Put the lever in its left-hand end position and
change the right-hand fuel filter in the same way.

Fuel system, bleeding

The fuel system must be bled e.g. after changing fuel
filter, if the fuel tank has been run dry and after long
stops. Refer to the next page for bleeding when
replacing a switchable fuel filter during operation.
IMPORTANT!
Do not loosen the injectors delivery pipes. If the
delivery pipes are loose they must be changed.
1 Position fuel collection container under the filter
cartridge and pressure maintenance valve (2)
2 Open pressure maintenance valve (B) and bleeder
screw (1).
3 Turn the engine over with the starter (max. 20 sec.)
until bubble-free fuel escapes first from the bleeder
screw (1) and then from the pressure maintenance
valve (2).
4 Firmly tighten bleeder screw (1) and pressure
maintenance valve (2).
5 Start the engine and make sure there are no leaks.
Maintenance
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