Mercedes-Benz OM 904 LA, Руководство по эксплуатации

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General notes
G
WARNING
If maintenance and repair work is carried out
on the engine incorrectly, this can cause
engine failure. Engine failure can lead to an
increased risk of accidents.
Maintenance and repair work on the engine
may only be carried out by personnel who
have undergone the appropriate training.
Always have work on or modifications to the
engine carried out at a qualified specialist
workshop.
Apart from careful operation and mainte-
nance of the engine it is also important that
malfunctions be rectified in good time.
You can rectify certain malfunctions yourself
(
Y
page 89).
Have malfunctions that you cannot eliminate
yourself rectified at a qualified specialist
workshop.
Bleeding the fuel system
Fuel system without fuel prefilter
Automatic bleeding
! Do not bleed the fuel system by operating
the starter motor for an extended period of
time. You could otherwise damage the
starter motor.
X Turn the starter motor for up to 30 seconds
without interruption until the engine is run-
ning smoothly.
If the fuel tank has been run dry, the fuel
system will be bled automatically
(
Y
page 35).
Fuel system with fuel prefilter
Fuel prefilter overview
Example: fuel prefilter
:
Manual fuel pump
;
Vent valve
=
Shutoff valve
?
Filter housing
A
Water separator with inspection window
B
Water release valve
If water has collected in inspection window
A
, drain the fuel prefilter before bleeding.
Draining the fuel prefilter
H
Environmental note
Dispose of the water-fuel mixture in an envi-
ronmentally responsible manner.
Drain the fuel prefilter regularly.
X
Place a collector under water release valve
B
.
X
On vehicles with fuel prefilter at tank level:
close shutoff valve
=
.
86
Bleeding the fuel system
Breakdown assistance