freightliner 108SD, Руководство пользователя

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Engine Protection—Warning
and Shutdown
The driver should be familiar with the vehicle warning
system in order to bring the vehicle to a safe stop if
the engine malfunctions. If the driver doesn’t under-
stand how the warning system works, an engine
shutdown could occur.
The engine will begin a warning and shutdown pro-
cess if the engine coolant temperature, coolant level,
engine oil pressure, or exhaust aftertreatment system
(ATS) reach preset levels. On some engines, the en-
gine will also begin the warning and shutdown pro-
cess when the engine oil temperature or the intake
air temperature reach preset levels. Detroit Diesel
engines will also begin the warning and shutdown
process if water is detected in the fuel.
See the engine manufacturer’s operation manual for
specific details for your vehicle.
See Chapter 11 in this manual for the warning and
shutdown modes associated with the ATS.
Electronic engine protection is programmable as an
option, and can be specified as the following: DER-
ATE and SHUTDOWN mode (factory default),
WARNING mode, or OFF mode.
WARNING
When the red STOP engine or engine protection
light illuminates, most engines are programmed
to shut down automatically within 30 seconds.
The driver must immediately move the vehicle to
a safe location at the side of the road to prevent
causing a hazardous situation that could cause
bodily injury, property damage, or severe damage
to the engine.
In the DERATE and SHUTDOWN mode, the red
STOP engine lamp will illuminate when the problem
is serious enough to reduce power or speed. See
Fig. 10.1 . Engine power will ramp down, then the
engine will shut down if the problem continues. The
driver has 30 seconds or 60 seconds (depending on
the critical fault type) after the STOP engine lamp
illuminates to move the vehicle safely off the road. If
the vehicle cannot be moved to a safe location within
that time, the engine can be restarted by turning the
ignition switch to the OFF position for at least five
seconds, then back ON. Repeat this action until the
vehicle is safely off the road.
Some vehicles may have a shutdown-override
switch, which may be used to momentarily override
the shutdown sequence. See
Fig. 10.2 . This switch
resets the shutdown timer, restoring power to the
level before the derate for another 30 or 60 seconds
(depending on the critical fault type). The switch
must be pressed again after 5 seconds to obtain a
subsequent override. It can be used to move the ve-
hicle to a safe stopping area. Do not operate the ve-
hicle further until the problem has been corrected.
If the engine protection parameters are set to
WARNING mode, the amber CHECK engine lamp
will flash and a buzzer will sound. The engine elec-
tronics log the event for diagnostic purposes. The
CHECK engine lamp will go out if the problem stops.
If the engine protection parameters are set to OFF
mode, the individual sensor indicator lamps will illu-
minate if a problem exists, but no shutdown action
will be started and the event will not be recorded.
07/09/2009 f611036
1 2 3
CHECK STOP
1. Malfunction Indicator
Lamp (MIL) 2. CHECK Engine Lamp
3. STOP Engine Lamp
Fig. 10.1, Engine Warning Lights
08/13/2009 f611040
Fig. 10.2, Shutdown Override Switch
Optional Engine Systems
10.1