Aftertreatment System (ATS)
There is a need to periodically remove accumulated ash, from the Diesel Particulate
Filter (DPF). Detroit™ Gen 5 Heavy Duty engines will illuminate a dashboard
warning indicator indicating the need for ash cleaning.
Once the DPF has reached maximum ash volume, the recommended service for the
DPF is to remove the DPF and replace with a Reliabilt® clean DPF. Using alternate
cleaning methods, instead of replacing the DPF at the required interval, may result
in the cleaned DPF failing to reach the next ash clean interval. The aftertreatment
may experience damage to the DOC, DPF or SCR assemblies as a result of
alternate cleaning methods. Cleaning accumulated ash from the DPF is a necessary
part of vehicle maintenance.
The DEF filter is considered a maintenance item and will require periodic
maintenance. The aftertreatment system should be serviced per the maintenance
intervals, Refer to section "Preventive Maintenance Tables".
Air Compressor
The air compressor incorporates three of the major systems of a diesel engine (air,
lubrication, and coolant). Proper inspection of the air compressor includes
inspecting for air, oil, and coolant leaks. A failed air compressor can create
inadequate internal sealing resulting in excessive crankcase pressure, or allowing
an engine to ingest oil. The air compressor should be inspected per the maintenance
intervals, Refer to section "Preventive Maintenance Tables".
Air System
The air cleaner restriction indicator (filter minder) should be inspected per the
maintenance intervals, Refer to section "Preventive Maintenance Tables", or more
often if the engine is operated under severe dusty conditions. Replace the air filter
if the filter minder has reached maximum allowable restriction. Do not allow the air
inlet restriction to exceed maximum allowable restriction.
A clogged air cleaner element will cause excessive air intake restriction and
reduced air supply to the engine resulting in increased fuel consumption, inefficient
engine operation, aftertreatment failure, and reduced engine life. High intake
restriction will also cause oil pullover from the turbocharger into the charge air
system.
The air system should also be periodically inspected for leaks. Leaks in the air
system can cause dirt ingestion into the engine, performance problems, or
aftertreatment failure.
Belt Drive
Gen 5 DD Platform Operators Manual
All information subject to change without notice.
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DDC-SVC-MAN-0217
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