Operation
Parked Regeneration Procedure
Perform the following steps to initiate Parked Regeneration
(cleaning) of the exhaust filter:
1. Park the vehicle safely off the roadway and away from
flammable materials.
2. Before initiating parked regeneration (using the ON/PARKD
REGEN switch), the following conditions must be in place:
a. Parking brake must be set
b. DPF indicator illuminated (Solid or Flashing).
c. Transmission must be in Neutral (N) or Park (P), if
available
d. Accelerator, foot brake and clutch (if present) pedals
must not be depressed,
e. Engine temperature must be at a sufficient level to allow
regeneration.
With some engines, this may be as high as 170° F (76.6°
C).
NOTE: The engine coolant temperature must be above 170°
F (76.6° C) before the parked regeneration procedure can be
performed. If the engine coolant temperature is too low, the
parked regeneration procedure will not activate.
3. Press the ON position of the ON/PARKD REGEN switch to
initiate the regeneration cycle.
The engine speed will automatically ramp up to a preset
RPM, PARKD REGEN ACTIVE will be displayed in the
information display, and the switch indicator will illuminate
when the cycle is started. If the indicator is blinking, check
to be sure that all conditions in step 2 have been met. Once
started, the regeneration cycle will last approximately 30
minutes.
NOTE: If any of the above conditions are altered during the
Parked Regeneration process, regeneration will be halted, and
must be restarted.
4. When the regeneration cycle is complete, the
switch indicator will go off, the engine rpm will
return to normal idle and all exhaust filter warning
indicators will be off. The vehicle may now be
driven normally.
NOTE: In the event of an emergency situation where the vehicle
must be moved after beginning Parked Regeneration, press
PARKD REGEN position of the ON/PARKD REGEN switch to
cancel Parked Regeneration.
Regeneration Inhibit Switch
The optional Regeneration Inhibit switch is used
to prevent the normal regeneration or parked
regeneration processes.
NOTE: There are two versions of the regeneration
inhibit switch: the two-position and the three-position
switch. Therefore, it’s necessary to verify which version is
installed in this vehicle. Both versions have the same switch
labels.
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