DPF Operation Table
State
Description
Normal
The DPF is in normal-operating
mode—passive regeneration.
Assist Regen
The engine computer is performing an
assist regeneration.
The regen inhibit
setting is set to O
N
.
Reset Stby
The engine
computer is trying
to run a reset
regeneration, but
1 of the following
conditions prevents
regeneration:
The exhaust
temperature
is too low for
regeneration.
Reset Regen
The engine computer is running a reset
regeneration.
Parked Stby
The engine computer is requesting that
you run a parked regeneration.
Parked Regen
You initiated a parked regeneration
request and the engine computer is
processing the regeneration.
Recov. Stby
The engine computer is requesting that
you run a recovery regeneration.
Recov. Regen
You initiated a recovery regeneration
request and the engine computer is
processing the regeneration.
•
The soot load is measured as the percentage of
soot in the DPF; refer to the soot-load table.
Note:
The soot load value varies as the machine
is operated and DPF regeneration occurs.
g365225
Figure 28
Soot-Load Table
Important Soot Load Values
Regeneration State
0% to 5%
Minimum soot load range
78%
The engine computer performs
an assist regeneration.
100%
The engine computer
automatically requests a
parked regeneration.
122%
The engine computer
automatically requests a
recovery regeneration.
Passive DPF Regeneration
•
Passive regeneration occurs as part of normal
engine operation.
•
While operating the machine, run the engine at
full-engine speed and high load when possible to
promote DPF regeneration.
Assist DPF Regeneration
•
The engine computer adjusts engine settings to
raise the exhaust temperature.
•
While operating the machine, run the engine at
full engine speed and high load when possible to
promote DPF regeneration.
Reset Regeneration
CAUTION
The exhaust temperature is hot (approximately
600°C (1,112°F) during DPF regeneration. Hot
exhaust gas can harm you or other people.
•
Never operate the engine in an enclosed
area.
•
Make sure that there are no flammable
materials around the exhaust system.
•
Never touch a hot exhaust system
component.
•
Never stand near or around the exhaust
pipe of the machine.
•
The high exhaust-temperature icon
displays
in the InfoCenter while the reset regeneration is
processing.
•
The engine computer adjusts engine settings to
raise the exhaust temperature.
Important:
The high exhaust-temperature
icon indicates that the exhaust temperature
discharged from of your machine may be
hotter than during regular operation.
•
While operating the machine, run the engine at
full engine speed and high load when possible to
promote DPF regeneration.
•
Whenever possible, do not shut off the engine or
reduce engine speed while the reset regeneration
is processing.
Important:
Whenever possible, allow the
machine to complete the reset regeneration
process before shutting off the engine.
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