Regeneration Process for DD Series 60 - (T500-1 & T780 Only)
After-treatment System
In order to meet current emissions regulations, the traditional muffler has been replaced by
a new After-treatment Device (ATD). This device 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 temperatures for an extended period of time. Without
adequate temperatures for regeneration, the filter will continue to trap particulates and
eventually plug. In order to avoid plugging, the engine manufacturers have designed an
actively regenerated After-treatment System (ATS). See below.
Operating Requirements
Operating Instructions
157P/N 12261-683 REVISED: January 2015
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