Technical data

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Bleeding air from the fuel circuit
1. Bleeder pipe on prefilter - 2. Bleeder pipe on filter support -
3. Bleeder pipe on high pressure pump.
Loosen the bleeder manifold on the pre-filter (1) and operate the
hand pump until the fuel coming out contains no air, then lock the
bleeder manifold.
 Loosen the bleeder manifold on the filter support (2) and operate
the pre-filter hand pump until the fuel coming out contains no air.
 Lock the bleeder manifold (2) and start the engine, operating the
hand pump during initial start-up.
Should there be serious problems starting-up the engine:
 Stop the engine and connect the high pressure pump bleeder hole
(3) to a container for the drained fuel, using a pipe.
 Loosen the manifold and attempt to start the engine for a few sec-
onds.
 Stop the engine, remove the pipe and lock the manifold to the pre-
scribed torque.
 Start the engine following the instructions described above.
Ensure that any fuel coming out of the manifolds is not dispersed into
the environment.
Changing the fuel pre-filter
Only proceed with the engine stopped and at a low temperature, so
as to avoid the risk of burning.
 Remove the water sensor (3).
 Remove the pre-filter by unscrewing it.
 Check that the new filter has performance levels that satisfy the
needs of the engine (e.g. by comparing them with the old one).
 Damp the new filter seal with diesel or engine oil.
 Hand screw the new filter into place until the seal gasket touches
the support, then lock by a further 3/4 of a turn.
1
2
3
05_016_V
CAUTION!
Do not attempt to bleed the system in any way, as this is
unnecessary and extremely dangerous.