1 minute read
EXHAUST AFTERTREA TMENT SYSTEM
from Mack Truck Electronic V-MAC IV Vehicle Management & Control with Co-Pilot Display Operator’s Manual
Aftertreatment DPF Regeneration
A DPF the exhaust used meet environmental protection agency (EP requirements help reduce soot and particulate emissions into the The particulates are typically removed collecting a DPF , with continuous periodic regeneration the filter . The electrical and exhaust aftertreatment system set the vehicle will determine when regeneration required. When regeneration needed, the icons the DPF Smart switch will light momentarily notify the driver and then shut f during regeneration. The high exhaust system temperature (HEST) indicator will light the instrument cluster warn high exhaust temperatures (when vehicle speed less than 8 km/h [ 5 mi/h ] when parked). Depending the s aftertreatment setup, regeneration can performed while moving when the vehicle parked. Below general information about the exhaust aftertreatment systems.
For non - catalyzed exhaust aftertr eatment systems
• V ehicle speed must least 8 km/h ( 5 mi/h ) order for the passive regeneration
• Icons the DPF Smart switch will momentarily light and then shut f during the regeneration.
• HEST indicator instrument cluster will light warn high exhaust temperatures when vehicle speed 8 km/h ( 5 mi/h ) HEST indicator will shut f when vehicle speed km/h ( mi/h ) higher
• Engine speed (RPM) will remain idle during regeneration (for parked regeneration).
For catalyzed exhaust aftertr eatment systems
• V ehicle speed must least km/h ( mi/h ) order for the passive regeneration
• Engine coolant temperature (ECT) 35°C ( 95°F ) higher .
• Icons the DPF Smart switch will momentarily light and then shut f during the
• HEST indicator instrument cluster will light warn high exhaust temperatures when vehicle speed 8 km/h ( 5 mi/h ) less. HEST indicator will shut f when vehicle speed km/h ( mi/h ) higher .
• Engine speed will ramp around RPM during regeneration (for parked
