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Maintenance: Fuel system
Fuel system
All work on the engine injection pump or injectors must be carried out at an authorized workshop. Use only the
recommended grade of fuel: See the chapter ”Technical Data”.
WARNING! Fire risk. When carrying out work on the fuel system make sure the engine is cold. A fuel spill
onto a hot surface or an electrical component can cause a fire. Store fuel soaked rags and other flammable
material in fireproof conditions.
Venting the fuel system
The fuel system must be vented after fuel filters have
been replaced or after refilling the fuel tank after it
has been run dry.
. Open vent screw () on the filter mounting approx.
three turns. Avoid fuel spillage. Use rags around
the venting point.
. Pump the fuel using hand pump () until there are
no more air bubbles visible in the fuel. Continue
pumping and at the same time tighten the venting
screw.
There is a strainer (3) in the intake manifold for
the pump. The strainer does not normally need to
be cleaned since the engine should be installed
with a fuel pre-filter. Low output may be due to a
blocked strainer.
If any of the two o-rings (4) are damaged
they need to be replaced.
3. Start the engine and check for leaks.
WARNING! Approaching or working on a run-
ning engine is dangerous. Watch out for rotating
components and hot surfaces.
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