DISPLAY AND CONTROL ELEMENTS 4
MHL380 D 4.31
4.6.5 Particulate filter (optional)
The particulate filter is a device that reduces
the number of particles present in the exhaust
gas produced by diesel engines.
Electronic filter monitoring
The clogged particulate filter indicator (57/73)
displays readiness for operation, system er-
rors and any malfunctions affecting the filter
system. The specific alarm states can be
found in the operating instructions provided by
the manufacturer of the particulate filter.
A dirty particulate filter can have an adverse ef-
fect on the exhaust gas discharged by the diesel
engine.
The filter must be cleaned by the particulate filter
manufacturer or an authorized service centre
equipped with an appropriate "filter cleaning sys-
tem".
Back-pressure monitoring
Electronic back-pressure monitoring automat-
ically warns the machine operator when the
exhaust back-pressure is too high, with a pre-
alarm sounding at a back-pressure > 180
mbar and the main alarm sounding at a back-
pressure > 200 mbar.
The pre-alarm is indicated by the status indi-
cator (57/73) flashing orange. The main alarm
is indicated by the status indicator (57/73)
flashing red. The warning buzzer (57/74)
sounds at the same time.
If the main alarm is triggered, shut down the
machine immediately to prevent damage to
the diesel engine. Then contact the dealer or
a TEREX | Fuchs service engineer.
Fig. 57 Particulate contamination indicator
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