Mack M359 - Aftertreatment System; Extended Idling and Aftertreatment System

EMISSION SOLUTION AND CONTROL
AFTERTREATMENT, MACK
Aftertreatment DEF pump,
Aftertreatment DEF Dosing unit, and
SCR catalyst. The advantage of using
DEF is that it enables the engine to use
less EGR, which results in more efcient
combustion. Using DEF also meets the
EPA near-zero NOx emissions
requirement of 0.2 g/hp-hr NOx. By
using DEF, we avoid the disadvantages
of increasing EGR to massive levels.
This benet results in better fuel
economy from your Mack engine.
Aftertreatment System
1 Selective Catalytic Reduction (SCR) Catlyst
2 Aftertreatment DEF Dosing Unit
3 Aftertreatment Diesel Particulate Filter (DPF)
4 Aftertreatment DEF Tank
1 One Box EATS
2 Aftertreatment DEF Dosing Unit
3 Replaceable Diesel Particulate Filter (DPF)
4 Aftertreatment DEF Tank
NOTE
In some instances you may have a
different conguration for your
aftertreatment system.
Extended Idling and
Aftertreatment System
During periods of extended idling,
normally greater than 8 hrs, the Diesel
Particulate Filter (DPF) system performs
a routine conditioning cycle. The Engine
ECU controls the conditioning cycle and
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