Case CX490D Operator's Manual page 133

3 - CONTROLS AND INSTRUMENTS
DEF/AdBlue® refilling
The SCR after treatment system requires the usage of DEF/AdBlue® fluid. The fluid is stored into a specific tank
installed on the machine.
Refill DEF/AdBlue® only after the related gauge on the display decreases.
NOTICE: If the tank is always filled to the FULL level, the DEF/AdBlue® level sensor may be diagnosed as malfunc-
tioning.
NOTICE: The DEF/AdBlue® actual consumption is highly dependent on engine loads, engine speed, ambient con-
ditions and DEF/AdBlue® concentration.
The recommended operating practice is to check DEF/AdBlue® level every time the fuel tank is being refilled, and to
refill DEF/AdBlue® when four segments of the DEF/AdBlue® level gauge are lit.
Use only DEF/AdBlue® that complies with ISO 22241-1. DEF/AdBlue® is available from CASE CONSTRUCTION
dealers, authorized DEF/AdBlue® dealers or truck stations.
NOTICE: DEF/AdBlue® is a transparent liquid with no color. Never use DEF/AdBlue® featuring any color as this
indicates poor quality of the fluid.
NOTICE: Do not put any fluid other than DEF/AdBlue® in the DEF/AdBlue® tank. If anything other than DEF/Ad-
Blue® is put in the tank, it will be detected leading to a protective action by the machine control system. Never put
diesel fuel or gasoline in the DEF/AdBlue® tank. Fire may occur, and the SCR system will be damaged.
It is recommended to use a DEF/AdBlue® filling equipment having a fill nozzle/pump with the proper length and
diameter, triggered by the magnet in the tank filler neck and with overfill flow cut out. This will ensure that:
• The screen in the filler neck will not be damaged.
• Impurities are not entering the DEF/AdBlue® tank. The standardized DEF/AdBlue® nozzle matches the filler neck
diameter.
• The DEF/AdBlue® tank is not overfilled, as the DEF/AdBlue® pump will stop when the DEF/AdBlue® tank is full.
NOTICE: Refilling with a funnel is not recommended as this may lead to damage of the screen in the filler neck.
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