Pierce Park Regeneration

Question 1

Parked Regeneration causes _____. Keep personnel

away from exhaust outlet to avoid serious burns and injury

Answer 1

high exhaust gas temperatures at zero vehicle speed

Question 2

Do not perform parked regeneration in _____ . All internal combustion engines
give off _____ . Inhalation of exhaust fumes can cause death.

Answer 2

Enclosed area / hazardous fumes and gasses while running

Question 3

Do not sit in a parked vehicle for any extended amount of time with the engine running. Exhaust fumes
could_____ and death can result.

Answer 3

leak into the cab area

Question 4

Do not perform parked regeneration while ______. Damage to the
exhaust extraction system may result.

Answer 4

connected to an exhaust extraction system

Question 5

Parked regeneration, also known as_____ , is an active regeneration that is performed
by the operator while the vehicle is parked.

Answer 5

stationary or manual regeneration

Question 6

IMPORTANT:If a parked regeneration is attempted, and the engine speed _____, contact
your Cummins dealer for assistance.

Answer 6

does not increase

Question 7

Engine type : Cummins ISX 12

Parked REGEN RPM : ____

Answer 7

960

Question 8

The apparatus ____ to be taken out of service to complete a parked regeneration.

Answer 8

does not need

Question 9

Performing a parked REGEN: 1st to 3rd step.

DPF LAMP must be on or flashing > _________ > Set parking brake

Answer 9

Stop in a safe location

Question 10

Performing a parked REGEN: 4th to 6th step.

Set safe zone around exhaust > ______ > Hold REGEN switch 5 seconds

Answer 10

Foot off throttle, brkake

Question 11

Performing a parked REGEN: Last step.

Answer 11

Monitor area stop engine for unsafe conditions.

Question 12

Performing a parked REGEN :

Park on a clean surface that will ______

Answer 12

not melt or burn (clean concrete or gravel, not grass or asphalt).

Question 13

Performing a parked REGEN :

Clear exhaust outlet area ____ of any items, gasses, vapors that can melt, burn or explode.

Answer 13

5 ft

Question 14

Performing a parked REGEN :

If indoors, exhaust discharge pipe must be rated at least _____.

Answer 14

1500°F (816°C)

Question 15

Performing a parked REGEN :

NOTE: Diesel Particulate Filter (DPF) lamp ____ in order to start a stationary regeneration.

Answer 15

must be ON

Question 16

Performing a parked REGEN :

With the engine running, press and hold the vehicle’s regeneration switch for several seconds.

Answer 16

•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).

Question 17

Performing a parked REGEN :

Regeneration may take ____, depending on soot level

Answer 17

20-40 minutes or more

Question 18

Performing a parked REGEN :

Exhaust temps ____ after completion.

Answer 18

stay high at least 3-5 minutes

Question 19

To stop a regeneration before completion, ______

Answer 19

depress throttle pedal, release parking brake, press the

regeneration inhibit switch, or turn off the engine.

Question 20

If excessive soot remains in the filter, the DPF light(s) will return to the appropriate stage until another
regeneration occurs. ______, call for service.

Answer 20

Repeat parked regeneration. If the DPF light still remains on

Question 21

After completion of regeneration, the HEST light will remain illuminated until the exhaust outlet temperature is below
______.

Answer 21

977°F (525°C) or the vehicle speed exceeds 5 mph

Question 22

Inhibiting or suspending regeneration too frequently can result in ____ to soot build-up in the DPF.

Answer 22

exhaust restriction, higher fuel

consumption, and engine performance loss due

Question 23

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_____

Answer 23

high-load mission, and initiating an active regeneration

or a parked regeneration.

Question 24

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.

Answer 24

temporarily suspend an in-process active regeneration.

Question 25

The regen inhibit switch should ____. It should only be used for hazardous
environments.

Answer 25

not be used for normal operation

Question 26

Overuse of the regeneration inhibit feature will lead to _____

Answer 26

more frequent need of parked/stationary regeneration,

or the need for servicing and/or replacing the Diesel Particulate Filter (DPF)

Question 27

A common misconception is that regeneration will ____ affect pumping operations

Answer 27

negatively

Question 28

If the pump is engaged, the regeneration process_____ the engine speed.

Answer 28

should not affect

Question 29

Regeneration removes soot from the DPF, but ______. Over time the DPF must be
removed, disassembled, and cleaned in a special machine to remove the ash build-up.

Answer 29

accumulated ash remains in the filter.

Question 30

The maintenance interval is ______ which is dependent on duty cycle,
type of oil used, and oil consumption rate.

Answer 30

200,000-400,000 miles, or up to 6,750 hours,

Question 31

Using ______ will maximize the DPF maintenance interval.

Answer 31

CES20081/API CJ-4 oil

Question 32

DEF Level low indicator : No lamp light

Answer 32

DEF level between full and 38% full: DEF Fluid Low light will remain OFF

Question 33

DEF Level low indicator : On Solid

Answer 33

DEF level between 38% full and 12% full: DEF Fluid Low light will illuminate solid.

Question 34

DEF Level low indicator : Flashing

Answer 34

DEF level below 12% full: DEF Fluid Low light will flash.

Question 35

DEF Level low indicator : Flashing/ amber Check engine

Answer 35

DEF level below 5% full (1/4 gallon remaining

Question 36

DEF Level low indicator : Flashing/ amber Check engine / MIL

Answer 36

DEF tank empty and system can no longer maintain DEF pressure

Question 37

DEF Level low indicator : Flashing/ red Check engine/ MIL /

Stop engine

Answer 37

DEF Tank empty and ignored, engine intentionally shut down or in extended idle