Operation and maintenance manual

For a typical view of the wall flow DPF, refer to this
Operation and Maintenance Manual, “Sensors and
Electrical Components (Aftertreatment)”
Regeneration Indicators
Five indicators can be affected by the DPF
regeneration. these indicators are, Regeneration
Active, DPF, Disable Regeneration, Amber, or Yellow
Warning Indicator and Red Stop Indicator.
Regeneration Active – This indicator will
illuminate during active regeneration.
The indicator shows that elevated
exhaust temperatures are possible. The indicator
will be turned off when regeneration is complete.
DPF – This indicator provides a general
indication of the soot load. The indicator
is off when the soot load is normal.
Disable Regeneration – This indicator is
illuminated whenever the disable switch
is activated.
Modes of Regeneration
• Automatic regeneration
• Manual regeneration
Automatic regeneration – Automatic regeneration
will occur when the level of soot reaches the trigger
point that is set in the ECM. The engine can operate
normally during an automatic regeneration.
Manual – A manual regeneration is initiated by
pressing the regeneration switch. A forced
regeneration can only be performed after the soot
load has illuminated the DPF indicator . A forced
regeneration will only be required if the automatic
regeneration has not been completed. This situation
can be due to either the disable switch being
operated or the duty cycle of the engine.
Note: In some applications the engine safety
interlocks will need to be in place before a forced
regeneration can occur.
Regeneration Switch
Note: The regeneration switch is a three position
switch. Some OEMs may use other means of
activating a forced regeneration such as touch
screen interfaces.
Force Regeneration – Press in the top of
the switch for 2 seconds in order to
begin regeneration.
Disable Regeneration – Press in the
bottom of the switch for 2 seconds in
order to disable regeneration.
Note: The MIDDLE position of the regeneration
switch is the default position for automatic
regeneration.
Note: You may return to normal operation at any
point during a regeneration.
Regeneration System Warning
Indicators
Some applications may also have an audible warning
installed.
58
SEBU8726-03
Operation Section
Diesel Particulate Filter Regeneration
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