PART 7: STARTING & OPERATING THE VEHICLE EXHAUST AFTER-TREATMENT SYSTEM
(05/10) Y53-6032 – 133 –
NOTE: Acknowledgment that a Parked Regener-
ation has initiated will vary by engine. The most
predominant acknowledgement to you will be an
increase in engine RPM and overall engine
noise.
NOTE: The time delay between when the regen-
eration switch has been pushed and released
and when the system starts regenerating may
vary by engine. A Parked Regeneration may take
30 or more seconds to initiate as the ATS system
conducts various self-checks to verify all the sys-
tem requirements have been met.
NOTE: A Parked Regeneration will initiate only if
the DPF status light is illuminated or blinking.
If you are unable to initiate a Parked regeneration and the
DPF status light is illuminated, contact your nearest Peter-
bilt authorized dealer for assistance.
Stop an Automatic or Parked
Regeneration
A three position switch with a START, Center, and STOP
position will allow the operator to stop a regeneration. If
the regeneration switch is a two position switch, then the
operator will not have the ability to stop a regeneration
and this section will not apply.
WARNING! If the vehicle’s regeneration
switch does not have a STOP position, never
allow the vehicle to remain inside a building
such as a service bay, shop or building of
any kind during an Automatic regeneration.
Failure to do so could ignite an explosion
which could result in death or serious injury
to you and/or bystanders.
Vehicles with a three position switch provides the operator
with the ability to STOP an Automatic or Parked Regener-
ation. Since Automatic Regenerations can occur at any
time with this engine, you must depress the STOP portion
of the Regeneration Switch ANYTIME you plan to drive
your vehicle into a building, enclosure or area where the
activation of a regeneration is not allowed. If the regener-
ation does not stop, turn the vehicle ignition OFF.
Y53-6032.book Page 133 Monday, May 24, 2010 3:37 PM
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