Gen 5 DD Platform Operators Manual Engine Systems Engine Systems The following sections will be covered in this chapter: Aftertreatment System - Diesel Exhaust Fluid Information Air System Cooling System Electrical System Engine Brake System Exhaust System and Exhaust Gas Recirculation (EGR) System Fuel System Lubrication System - Engine Oil Capacities Aftertreatment System Aftertreatment Systems Detroit™ Gen 5 Heavy Duty engines are equipped with the second generation of the Global Aftertreatment System (GATS 2.0). The function of the Aftertreatment System (ATS) is to reduce emisson levels in the engine exhaust.
Mounted onto the ATS are eight sensors, a Diesel Exhaust Fluid (DEF) doser, and an Aftertreatment Control Module (ACM). The sensors monitor various temperatures, pressures and levels within the ATS. The DEF doser measures DEF pressure and injects DEF into the ATS when needed. The ACM controls the functions and analyzes the data of the ATS electronic components by means of the ATS wiring harness. For information on performing a parked DPF regeneration, Refer to section "How to Perform a Parked Regeneration". Proper maintenance of the ATS is essential to ensure the engine continues to comply with applicable emissions standards.
For a listing of required service intervals Refer to section "Preventive Maintenance Tables". All information subject to change without notice. 41 DDC-SVC-MAN-0217 Copyright © 2022 DETROIT DIESEL CORPORATION