© 2018 Pierce Manufacturing Inc. All Rights Reserved.
Engine Exhaust After Treatment Systems / 5-25
OPERATION
Table 5-4: Performing A Parked Regeneration (Cummins or Ford)
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.
5-12.4a Canceling Stationary Regeneration
If it is necessary to interrupt a stationary/parked regeneration before completion (such as in order to respond to an
emergency call) the operation may be canceled by depressing the throttle, releasing the parking brake, or pressing
the Regen Inhibit Switch. If the DPF lamp is still illuminated after the call, the operator can re-initiate the stationary
regeneration process as normal. If the DPF lamp has extinguished in the meantime, the vehicle was able to
complete the regen process on its own.
1. Stop vehicle completely, transmission in N (neutral), and set the parking brake.
• Park on a clean surface that will not melt or burn (clean concrete or gravel, not grass or asphalt).
• Engine control should be from accelerator pedal (not PTO, remote PTO, cruise, etc) PTO and running
at normal idle (high idle should be OFF).
• Clear exhaust outlet area 5 ft of any items, gasses, vapors that can melt, burn or explode.
• If indoors, exhaust discharge pipe must be rated at least 1500°F (816°C).
2. Keep foot off the throttle pedal and the brake pedal.
STAY with the vehicle. Monitor the area during the operation. if any unsafe conditions occur, shut off
engine immediately!
NOTE:
Diesel Particulate Filter (DPF) lamp must be ON in order to start a stationary regeneration.
3. 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).
• Regeneration may take 20-40 minutes or more, depending on soot level.
• Exhaust temps stay high at least 3-5 minutes after completion.
4. To stop a regeneration before completion, depress throttle pedal, release parking brake, press the
regeneration inhibit switch, or turn off the engine.
5. When the regeneration is complete, the engine returns to normal idle speed and operation.
— If excessive soot remains in the filter, the DPF light(s) will return to the appropriate stage until another
regeneration occurs. Repeat parked regeneration. If the DPF light still remains on, call for service.
STOP IN
SAFE
LOCATION
SET
PARKING
BRAKE
FOOT OFF
THROTTLE,
BRAKE
SET SAFE
ZONE AROUND
EXHAUST
HOLD
REGEN
SWITCH 5
PRESSING BRAKE, THROTTLE, REGEN INHIBIT SWITCH WILL STOP REGENERATION PROCESS
MONITOR AREA
STOP ENGINE
FOR UNSAFE
CONDITIONS!!
DPF LAMP
MUST BE
ON OR
FLASHING
SECONDS
Summary of Contents for Enforcer
Page 1: ... 2018 Pierce Manufacturing Inc Part No PM C OM014 SEN 0718 Operator s Manual Saber Enforcer ...
Page 2: ......
Page 18: ...FOREWORD 1 6 To the Owner and Operator 2018 Pierce Manufacturing Inc All Rights Reserved ...
Page 30: ...SAFETY 2 12 Safety and Responsibility 2018 Pierce Manufacturing Inc All Rights Reserved ...
Page 122: ...OPERATION 5 60 Driving the Vehicle 2018 Pierce Manufacturing Inc All Rights Reserved ...
Page 184: ...A 4 2018 Pierce Manufacturing Inc All Rights Reserved ...