Starting and running
OPM 300 en-GB 30
© Scania CV AB 2020, Sweden
Reaction to fault in the exhaust gas after-
treatment system – Stage V
The symbol and behaviour of the warning lamp
depend on the installation of the engine in the
machine. The Scania recommendation will lead
to the behaviour and symbol described here, but
this may differ between different machines.
Once the fault has been remedied and the engine
control unit has received an indication that the
exhaust gas aftertreatment management system
is operating i.e. when the fault code has been ac-
knowledged in SDP3, torque returns to the nor-
mal level.
Regeneration of the particulate filter
The particulate filter is regenerated, i.e. cleaned,
automatically. If a certain amount of soot is ac-
cumulated, the engine enters a periodic and auto-
matic program to reduce the amount of soot. The
engine can be used without any impact on oper-
ation.
However, if the particulate filter becomes full, it
must be regenerated manually. The engine can-
not be used for approximately 45 minutes while
manual regeneration is carried out. The particu-
late filter symbol is used to indicate that the par-
ticulate filter is full and needs to be regenerated
manually.
During manual regeneration, the engine speed
can rise to 1,500 rpm for all-speed engines. For
engines configured as single-speed, all regenera-
tion occurs at the selected rotational speed.
Warning
lamp
Torque and speed control
Constant
light
None
Flashes
slowly
(½ Hz)
Torque is reduced by 1% per minute
to 75 % of the highest torque.
Flashes rap-
idly (2 Hz)
Torque is reduced by 1% per minute
to 50% of the highest torque. The
engine speed is reduced to 60% of
the nominal engine speed.
Symbol for faults in the exhaust gas aftertreatment
system.
399 717
Symbol for the particulate filter.
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