g227348
Figure 65
•
Use the DPF operation table to understand the current
state of DPF operation (
).
g227360
Figure 66
.
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.
DPF Operation Table (cont'd.)
State
Description
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.
•
View the soot load which 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.
g227359
Figure 67
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.
40
