Recurring Fault; Stopping And Switching Off The Engine; Recurring Fault (Example Display); Continuous Brake - Mercedes-Benz OM 904 LA Operating Instructions Manual

Recurring fault

Recurring fault (example display)

Regular operating restriction
a
Operating restriction after first recurrence
b
of fault
Operating restriction after second recur-
c
rence of fault

Stopping and switching off the engine

G
WARNING
When switching off the equipment or parking
the vehicle, make sure that the exhaust sys-
tem does not come into contact with com-
bustible objects, e.g. dry leaves, grass or
other highly flammable materials.
X
Park the vehicle/equipment.
X
Secure the vehicle/equipment against roll-
ing away.
X
Shift the transmission into neutral/decou-
ple the drive system.
Let the engine idle for approximately two
minutes before switching off the engine if:
the coolant temperature is very high (over
R
90 †).
the engine has been operated at full output.
R

Continuous brake

X
To switch off the engine: turn the vehicle
key in the ignition lock back to the stop at
position u.
or
X
Press the Start/Stop button on the engine
or on the engine shutoff device on the
equipment.
X
Secure the vehicle/equipment against roll-
ing away.
! Stop the engine immediately if:
the oil pressure falls or fluctuates signif-
R
icantly.
the power output or engine speed
R
decreases and the position of the posi-
tion sensor (accelerator) remains con-
stant.
heavy smoke is emitted from the
R
exhaust.
the coolant or engine oil temperature
R
rises steeply.
abnormal noises suddenly come from
R
the engine or exhaust gas turbocharger.
i When you switch off the engine, Blue-
®
Tec exhaust gas aftertreatment automat-
ically flushes the exhaust system with fresh
air. Residues of AdBlue
metering unit or the injection nozzle might
otherwise impair the function of BlueTec
exhaust gas aftertreatment. Depending on
the engine's previous operating load, Blue-
®
Tec exhaust gas aftertreatment may flush
the exhaust system several times.
®
When BlueTec exhaust gas aftertreatment
flushes the exhaust system, an air valve is
activated. You may then hear a hissing
sound. This hissing sound does not indicate
a leak in the compressed-air system.
Continuous brake
The airbrake and the constantly open throttle
valves are employed as continuous brakes.
®
/DEF on the
®
Z
41