Operation and maintenance manual

62 SEBU8601-01
Operation Section
Engine Operation
Active Regener
ation – The engine does not create
enough heat in order to regenerate the DPF. The
ARD must be used to create the heat necessary to
regenerate th
eDPF.
Lamps
Five dash lamps can be affected by the DPF
regeneratio
n. Also, the horn can be used in order to
alter the operator.
High Exhaus
t System Temperature
Lamp (HEST) – The lamp is illuminated
when the ARD is activated and the exhaust
temperatur
e is greater than 450 °C (842 °F).
DPF Lamp – This lamp provides a general
indication of the soot load. The lamp is off
when the so
ot load is normal. The lamp will
operate at level 2.
Note: In some situations, the DPF lamp may stay
illumina
ted when the soot load is below 90%. The
illuminated DPF lamp indicates that a complete
regeneration has not been performed. A complete
regener
ation is when the soot level is reduced to
0%. If the DPF lamp stays illuminated, perform a
regeneration without interruption until the soot level
is reduc
ed to 0%. A complete regeneration will reset
the DPF lamp.
Amber o
r yellow Warning Lamp – This
lamp indicates that the soot load has
increased. Regeneration is required. This
lamp w
ill be illuminated at level 3 soot load and the
lamp will flash if regeneration is not activated. Also,
the DPF lamp will be illuminated.
Note:
Amber or yellow Warning Lamp can be use
as a diagnostic lamp. For more information refer to
this Operation and Maintenance Manual, “Diagnostic
Lamp
”.
Red Stop Lamp – This lamp indicates that
the s
oot load is extremely high. The soot
load is at level 3. The engine will derate
and may shut down. Also, the DPF lamp will be
ill
uminated.
DPF Disable Lamp – This lamp is
illuminated whenever the ARD disable
swi
tch is activated or the system has been
disabled by the engine ECM.
Mo
des of Regeneration
•
Low speed automatic
•
Enhanced automatic regeneration
•
Forced regener
ation
Low speed automatic regeneration and enhanced
automatic reg
eneration are controlled by the engine
ECM. During this regeneration the operator will see
the high exhaust system temperature lamp (HEST)
illuminated
.
Low speed automatic – Low speed automatic
regenerati
on allows for the DPF regeneration to start
automatically with the engine speed in a low idle
condition or near low idle condition. In order for a low
speed autom
atic regeneration to occur, the following
conditions must be met:
•
Soot level
must be between level 1 and level 3 on
the soot level monitor (if equipped).
•
Engine spe
ed must be below 1400 rpm.
•
The interlocks for the application will raise the
RPM to the
required engine speed in order for the
regeneration to occur. The engine RPM will be
from1000to1400RPM.
•
Refer to the OEM for the applications interlocks
required to be engaged before regeneration can
take pla
ce.
Enhanced automatic regeneration – This mode
of DPF re
generation allows for regeneration to take
place at higher engine rpm and higher engine loads.
In order for enhanced automatic regenerations to
occur ,
the following conditions must be met:
•
Soot level must be between level 2 and level 3 on
the so
ot level monitor (if equipped).
•
Engine speed must be greater than 1400 rpm.
•
Minimum engine idle speed input must be set.
Setting the input will not allow engine speed to
fall
below 1000 rpm during enhanced automatic
regeneration. If minimum low idle speed input is
not available, regeneration will stop if engine speed
drop
s below 1000 rpm.
•
Refer to the OEM for the applications interlocks
req
uired to be engaged before regeneration can
take place.
For
ced regeneration – A forced regeneration is
initiated by pressing the regeneration switch. A forced
regeneration is allowed during normal operation up
to
level 3. A forced regeneration can be performed
in the low speed automatic window or the enhanced
automatic regeneration window.