Aftertreatment Operation
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Diesel Particulate Filter
Regeneration
The 404F-E22 and 403F-E17T families of engines do
not have a Diesel Particulate Filter (DPF) installed
within the aftertreatment system.
The 404F-E22 and 403F-E17T families of engines
use a different technology called, the Diesel
Oxidation Catalyst (DOC). This DOC system does
not require any scheduled maintenance, and will not
be included in the Maintenance Interval Schedule.
In order for the 404F-E22 and 403F-E17T family of
engines to meet emissions regulations the exhaust
gases are passed through the DOC. There the gases
react with the catalyst. The aftertreatment system
can be expected to function properly for the lifetime
of the engine (emissions durability period). However
for the aftertreatment system to function properly,
prescribed maintenance requirements and schedules
must be followed.
SEBU9075-03
51
Operation Section
Aftertreatment Operation
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