A reference label is included with the driver’s docu-
mentation package initially in the glove box, that ex-
plains the ATS warnings, and actions required to
avoid further engine protection sequences. See
Fig. 9.3.
The regen switch, located on the dash, is used to
initiate a parked regen of the aftertreatment device.
See
Fig. 9.4.
NOTE: The regen switch can initiate a parked
regen only when the DPF lamp is illuminated
(because the engine software is signaling for a
parked regen).
The regen-inhibit switch (optional when available)
provides additional control over the aftertreatment
regeneration process. A driver may decide to use this
feature if they are hauling cargo that should not be
exposed to possible high exhaust temperatures from
an automatic regen. Depressing the regen-inhibit
switch will prevent a regen from occurring during a
drive cycle. After the vehicle has been shut down
and restarted, regens will occur normally unless the
inhibit switch is pressed again. See
Fig. 9.5.
To initiate a parked regeneration, perform the follow-
ing steps.
1.
Park the vehicle away from all combustible and
flammable materials. Chock the tires. Start and
warm the engine until the coolant temperature is
at least 150°F (66°C).
2.
Set the parking brake. If the parking brake was
already set, you must release it, then set it
again.
f080147
EXHAUST AFTERTREATMENT SYSTEM INFORMATION
Switch.
Level 1 Level 3Level 2 Level 4
Filter Regeneration
Recommended
Filter is reaching
Bring vehicle to
highway speeds to
Filter Regeneration
Necessary
Filter is now
reaching maximum
capacity
.
To avoid engine
derate bring vehicle
Parked Regeneration
Required − Engine
Derate
Filter has reached
maximum capacity
.
Vehicle must be
parked and a Parked
Parked Regeneration Required −
Engine Shut Down
Filter has exceeded
maximum capacity
Vehicle must be parked and a
Parked Regeneration or Service
(Solid)
(Flashing) (Flashing)
CHECK CHECK
(Flashing)
INDICATOR
LAMP(S)
Indicator Lamp
Message(s)
Diesel Particulate
Filter Condition
Required Action
capacity
. .
STOP
See Engine Operator’s Manual for complete Regeneration Instructions.
allow for an Automatic
Regeneration or
perform a Parked
Regeneration.
to highway speeds
to allow for an
Automatic
Regeneration or
perform a Parked
Regeneration as
soon as possible.
Regeneration must
be performed −
engine will begin
derate.
Regeneration must be performed.
Check engine operator’s manual
for details −engine will shut down.
For a driver performed Parked Regeneration, vehicle must be equipped with a dash mounted Regeneration Switch.
06/29/2009
24−01583−000B
W
ARNING
HEST (High Exhaust
System Temperature)
Exhaust Components
and exhaust gas are
at high temperature.
When stationary, keep
away from people and
flammable materials
or vapors.
A regeneration is in
progress.
Flashing
Solid
Fig. 9.3, Exhaust-Aftertreatment Warnings Reference Label
f611199
06/19/2012
Fig. 9.4, Regen Switch
Exhaust Aftertreatment Systems
9.3
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