Kubota D1803-CR-E4, Workshop Manual

Page: 177 / 309

PM warning level
Regeneration method
Regeneration status Control
Automatic active
regeneration
Parked active re-
generation
Regeneration
with service
tools
2-1
Automatic active
regeneration
○ × ○
When the warning level
reaches 2, regeneration is
started automatically.
4. If the DOC temperature
is 550
℃
(1022
℉
) or
higher, the PM com-
busts on its own so
post injection is not per-
formed (Passive regen-
eration state).
2-2
Require parked
active regenera-
tion
× ○ ○
If PM warning level does not
fall to 0 within 30 minutes af-
ter started automatic active
regeneration, parked active
regeneration is required. 1. Stop the machine at
safty position.
2. The intake throttle
valve is operated re-
ducing the amount of
intake air raising the
exhaust temperature.
3. Engine speed is raised
and adjusted so that
the DOC temperature
rises to 250
℃
(482
℉
)
or higher.
4. After the DOC reaches
250
℃
(482
℉
) or high-
er, control is performed
the same as for auto
regeneration.
5. When regeneration is
finished, the operation
state is returned what it
was prior to auto regen-
eration (idle speed).
3
Parked active re-
generation
（ with
output limitation
）
× ○ ○
Automatic active regenera-
tion stops.
Require parked active re-
generation with machine
stop.
4
Regeneration with
Diagmaster
（
with
output limitation ）
× × ○
Parked active regeneration
becomes impossible.
Need to use Diagmaster for
regeneration.
Regenerate using diagnostic
tool (Diagmaster).
5
Cleaning DPF
（ with output limi-
tation
）
× × ×
Regeneration with Diagmas-
ter becomes impossible.
Need to change or clean
DPF.
－
MECHANISM
9. Aftertreatment system 4. ENGINE
D1803-CR-E4,D1803-CR-TE4,D1803-CR-TIE4,V2403-CR-E4,V2403-CR-TE4,V2403-CR-TE4BG,V2403-CR-TIE4
4-77
KiSC issued 12, 2018 A