G
WARNING
Certain engine components can become very
hot.
There is a risk of injury when carrying out
work at the engine.
Where possible, allow the engine to cool down
and only touch the components described
below.
Be aware of the road and traffic situation
when working on public roads and secure
your position accordingly.
Before starting and stopping the engine
X
Switch the ignition lock to the drive posi-
tion.
X
Shift into neutral.
X
Tilt the cab forward (electrohydraulic
(Y page
370) or mechanical hydraulic
(Y page 369) cab tilt system).
Starting the engine
X
Press external engine start/engine stop :
until the engine starts.
Starting the engine and increasing the
engine speed
X
Hold down external engine start/engine
stop : until the desired engine speed is
achieved.
After about
3 seconds, the engine speed
increases. After external engine start/
engine stop : has been released, the
engine continues to run at the speed cur-
rently set.
The engine speed can be increased up to
the limiting speed.
Stopping the engine
X
Press external engine start/engine stop :
again.
X
Tilt the cab back to the driving position.
Bleeding the fuel system
Bleeding the fuel system without fuel
prefilter on chassis frame
(OM 470/471/473
only)
!
Do
not bleed the fuel system with several
starting procedures. You could otherwise
damage the starter motor.
X
Switch the ignition lock to the drive posi-
tion.
X
Shift into neutral.
X
Tilt the cab forward (electrohydraulic
(Y page
370) or mechanical hydraulic
(Y page 369) cab tilt system).
X
Unscrew the fuel tank filler cap.
X
Remove bolts ;.
X
Remove cover :.
Engine
373
Breakdown assistance
Z