Section 4- Operation
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4.2 AFTER-TREATMENT SYSTEM (ATS) (IF EQUIPPED FOR ULS/110
OR 130HP)
This machine is equipped with an Selective Catalytic Reduction (SCR) exhaust
After
-
Treatment System (ATS). The system injects liquid through a special catalyst into the
exhaust stream of the diesel engine. The liquid is automotive-grade urea, otherwise
known as Diesel Exhaust Fluid (DEF). The DEF sets off a chemical reaction that converts
nitrogen oxides into nitrogen, water and carbon dioxide (CO2), which is then expelled
through the engine exhaust pipe.
The ATS is equipped with an automatic, or in-mission, exhaust cleaning system. A
stationary, or non-mission, exhaust system cleaning will be required if the in-mission
cleaning was not successful.
Automatic Exhaust System Cleaning (In-Mission)
The in-mission cleaning process will be performed during normal machine operation
without any operator interaction.
• High Exhaust System Temperature (HEST) (
1
) Indicator may illuminate during exhaust
system cleaning.
WARNING
HIGH EXHAUST TEMPERATURE.
Keep flammables and people away from hot exhaust.
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