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4.4
SCR SYSTEM AND DEF/ADBLUE
This machine is equipped with SCR (Selective Catalytic Reduction) system for NOx (nitrogen oxidate) discharge
reduction.
4.4.1
SCR
SCR equipped with this machine reduces NOx in exhaust gas by injecting DEF/AdBlue into the muffler to resolve
NOx in the exhaust gas into water and nitrogen.
4.4.2
DEF/AdBlue
DEF/AdBlue is used for the SCR system on this machine. Use only specified DEF/AdBlue.
• DEF/AdBlue should meet ISO 22241-1 or JIS K2247-1.
• Do not put diesel fuel or water in the DEF/AdBlue tank.
• Follow the precautions for handling DEF/AdBlue specified by the manufacturer.
4.4.3
DEF/AdBlue CIRCUIT AND BATTERY
Before removing the battery terminals, turn the starter switch to the OFF position and wait 5 minute or more.
If the battery power is turned off immediately after stopping the engine, it may cause damage to the exhaust gas
cleaning device.
Even after turning the engine OFF, you may hear running sound of the DEF/AdBlue supply module.
To prevent DEF/AdBlue remaining in the DEF/AdBlue pipe from freezing and drying, DEF/AdBlue is returned to the
tank with the DEF/AdBlue supply module.
4.4.4
STORING DEF/ADBLUE
DEF/AdBlue freezes at - 11 degrees C (12 degrees F). The container may be damaged from volume expansion due
to freezing.
• DEF/AdBlue should be stored in a place without direct sunlight and with well ventilation, with its container
sealed.
• Do not mix DEF/AdBlue with other chemicals, heat it, or dilute it with water.
4.4.5
PURCHASING DEF/ADBLUE
DEF/AdBlue can be purchased in the following places or confirm where to purchase.
• Gas stations and stores that sell automobile goods.
• DEF/AdBlue manufacturers
• KOBELCO authorized dealer/distributor
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