Pierce Park Regeneration Flashcards
Parked Regeneration causes _____. Keep personnel
away from exhaust outlet to avoid serious burns and injury
high exhaust gas temperatures at zero vehicle speed
Do not perform parked regeneration in _____ . All internal combustion engines
give off _____ . Inhalation of exhaust fumes can cause death.
Enclosed area / hazardous fumes and gasses while running
Do not sit in a parked vehicle for any extended amount of time with the engine running. Exhaust fumes
could_____ and death can result.
leak into the cab area
Do not perform parked regeneration while ______. Damage to the
exhaust extraction system may result.
connected to an exhaust extraction system
Parked regeneration, also known as_____ , is an active regeneration that is performed
by the operator while the vehicle is parked.
stationary or manual regeneration
IMPORTANT:If a parked regeneration is attempted, and the engine speed _____, contact
your Cummins dealer for assistance.
does not increase
Engine type : Cummins ISX 12
Parked REGEN RPM : ____
960
The apparatus ____ to be taken out of service to complete a parked regeneration.
does not need
Performing a parked REGEN: 1st to 3rd step.
DPF LAMP must be on or flashing > _________ > Set parking brake
Stop in a safe location
Performing a parked REGEN: 4th to 6th step.
Set safe zone around exhaust > ______ > Hold REGEN switch 5 seconds
Foot off throttle, brkake
Performing a parked REGEN: Last step.
Monitor area stop engine for unsafe conditions.
Performing a parked REGEN :
Park on a clean surface that will ______
not melt or burn (clean concrete or gravel, not grass or asphalt).
Performing a parked REGEN :
Clear exhaust outlet area ____ of any items, gasses, vapors that can melt, burn or explode.
5 ft
Performing a parked REGEN :
If indoors, exhaust discharge pipe must be rated at least _____.
1500°F (816°C)
Performing a parked REGEN :
NOTE: Diesel Particulate Filter (DPF) lamp ____ in order to start a stationary regeneration.
must be ON
Performing a parked REGEN :
With the engine running, press and hold the vehicle’s regeneration switch for several seconds.
•Engine speed increases. The turbocharger may make a different sound during the event
•DEF lamp turns OFF. As hydrocarbons are added, temperature goes up. HEST lamp illuminates when
exhaust temperature reaches 977°F (525°C).
Performing a parked REGEN :
Regeneration may take ____, depending on soot level
20-40 minutes or more
Performing a parked REGEN :
Exhaust temps ____ after completion.
stay high at least 3-5 minutes
To stop a regeneration before completion, ______
depress throttle pedal, release parking brake, press the
regeneration inhibit switch, or turn off the engine.
If excessive soot remains in the filter, the DPF light(s) will return to the appropriate stage until another
regeneration occurs. ______, call for service.
Repeat parked regeneration. If the DPF light still remains on
After completion of regeneration, the HEST light will remain illuminated until the exhaust outlet temperature is below
______.
977°F (525°C) or the vehicle speed exceeds 5 mph
Inhibiting or suspending regeneration too frequently can result in ____ to soot build-up in the DPF.
exhaust restriction, higher fuel
consumption, and engine performance loss due
If the DPF has reached system limits (DPF light flashes with Check Engine Light) the operator needs to
take action such as removing the truck from a_____
high-load mission, and initiating an active regeneration
or a parked regeneration.
The Regeneration Inhibit Switch can be used to _____. This may
be done when the regeneration is going to occur in a location or situation that is not ideal and must be postponed.
temporarily suspend an in-process active regeneration.
