Sakai SW884, Руководство оператора

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2 OPERATION
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2.5 Operating the DEF SCR System
1
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About the DEF SCR (Selective Catalytic Reduction) system
The DEF SCR system breaks down toxic nitrogen oxides (NOx) contained in the exhaust
gas into harmless nitrogen and water. DEF is sprayed into the exhaust gas, and the
ammonia generated by the urea reacts with the nitrogen oxides breaking them down into
nitrogen and water.
Depending on the operating conditions, when the DEF SCR system’s cleaning function
deteriorates, regeneration is carried out to protect the system.
CAUTION
• Keep the DEF tank topped up by refilling it at the right time.
• Always use the DEF designated by our company.
2) Regeneration
Regeneration is carried out in the following ways.
• Automatic regeneration
The exhaust equipment high temperature lamp will turn on.
NOTE: The machine may be driven or operated as usual during automatic regeneration.
• Parked manual regeneration request
Parked manual regeneration lamp / Regeneration lamp will turn on.
Press the Parked manual regeneration switch in accordance with the prescribed
procedures.
The exhaust equipment high temperature lamp will turn on when regeneration begins,
and the parked manual regeneration lamp / regeneration lamp will flash.
• Parked manual regeneration request emergency lamp will flash.
Parked manual regeneration lamp / Regeneration lamp will turn on.
Press the Parked manual regeneration switch in accordance with the prescribed
procedures.
The exhaust equipment high temperature lamp will turn on when regeneration begins,
and the parked manual regeneration lamp / regeneration lamp will flash.
WARNING
• Do not carry out cleaning in enclosed spaces with poor ventilation, such as
inside a garage or a room. There is the danger of carbon monoxide poisoning.
• Check to make sure there are no flammables near the mouth of the exhaust pipe
to prevent fires.
• Do not touch or let people go near the exhaust pipe or muffler, which will be
hot during cleaning, and for a while after cleaning.
NOTE: The engine sound, exhaust gas smell, etc., may change during regeneration.