Case CX490D Operator's Manual page 144

Crawler excavator
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3 - CONTROLS AND INSTRUMENTS
To resume normal machine operation as DEF/AdBlue® has run out:
1. Turn the starter key to OFF position.
2. Wipe clean any dirt, mud or other foreign objects attached around the filler port on the DEF/AdBlue® tank.
3. Turn the tank cap counterclockwise and open the filler neck.
4. Make sure to refill DEF/AdBlue® up to 30% of the tank capacity (see Chapter 6 for capacity of the DEF/AdBlue®
tank).
5. Put the cap on the filler neck. Turn the cap clockwise to close the filler neck.
Let the engine run at low idle for 5 min. The warnings, the messages and the icons remain active for some time as
the machine control system has to recognizes that DEF/AdBlue® has been added sufficiently.
After the refilling is detected by the machine control system, the segments of the DEF/AdBlue® gauge get lit in white
and all the warnings, the messages and the icons disappear.
NOTICE: If the warnings, the messages and the icons do not disappear after 10 min, turn the starter key to OFF
position. Add some more DEF/AdBlue® into the tank. Wait 1 min and then turn the starter key to ON position. If
again the warnings, the messages and the icons do not disappear after 15 s, consult the CASE CONSTRUCTION
dealer to check for malfunctioning of the DEF/AdBlue® filling detection system.
3-92

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