Operators Manual

Table Of Contents
EPA07 Aftertreatment Device
In order to meet EPA07 emissions regulations, the traditional muffler was replaced
by a new Aftertreatment Device (ATD). The EPA07 ATD consists of a Diesel
Oxidation Catalyst (DOC) and a Diesel Particulate Filter (DPF). Together, these
two components burn off collected particulate matter in a process called
"regeneration." The key to successful regeneration is high exhaust temperature for
an extended period of time. Without adequate temperatures for regeneration, the
filter will continue to trap particulate and eventually plug. In order to avoid
plugging, Detroit™ has designed an actively-regenerated ATD.
1. Doser Block Assembly
2. Intake Throttle Valve
3. Charge Air Cooler
4. EGR Valve
5. EGR Actuator
6. Fuel Doser Valve
7. DOC Inlet Temperature Sensor
8. DOC Outlet Temperature Sensor
9. Sensor Junction Box
10. DPF Outlet Temperature Sensor
11. DPF Outlet Pressure Sensor
12. Diesel Particulate Filter
13. DPF Inlet Pressure Sensor
14. Diesel Oxidation Catalyst
Figure 28. EPA07 Aftertreatment Device
EPA07 Aftertreatment Device
84 All information subject to change without notice.
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