4-11
4.4.6
LOW DEF/ADBLUE LEVEL
If the pointer of the monitor points the yellow or red range, immediately supply DEF/AdBlue until the pointer points
the place higher than the yellow range.
When DEF/AdBlue becomes low, restriction is applied to the engine output.
When the following warnings are displayed in the multi-display, see "CHECKING DEF/ADBLUE LEVEL AND
REFILLING" to supply DEF/AdBlue.
Level
Warning Display
Contents
1st Level
Displayed with the warning sound when the pointer of the DEF/
AdBlue level gauge points the yellow range.
2nd Level
Displayed with the warning sound when the pointer of the DEF/
AdBlue level gauge points the yellow range. Gradually, a restriction is
applied to the engine output.
3rd Level
Displayed with the continuous warning sound when the pointer of the
DEF/AdBlue level gauge points the E point. The engine output is
further restricted than Level 2.
4.4.7
QUALITY PROBLEMS OF DEF/ADBLUE
• Use DEF/AdBlue which meets ISO 22241-1 or JIS K2247-1.
• Do not add diesel fuel or water in the DEF/AdBlue tank.
• Follow the precautions for handling DEF/AdBlue specified by the manufacturer.
When the following warnings are displayed on the multi-display, something other than DEF/AdBlue is in the DEF/
AdBlue tank. See "DRAINING DEF/ADBLUE" and "CHECKING DEF/ADBLUE LEVEL AND REFILLING " to drain
and refill DEF/AdBlue.
If the machine is operated with the DEF/AdBlue in abnormal quality, the engine output is restricted.
Also, when something else than DEF/AdBlue is put in the tank and the engine is started, the DEF/AdBlue pipes and
the DEF/AdBlue supply module may need to be replaced.
LEVEL
Warning Display
Description
Level 1
Displayed with the warning sound when the DEF/AdBlue sensor
determines the quality problem of DEF/AdBlue.
Level 2
Displayed with the warning sound when a certain period of time has
passed from Level 1. The engine output is gradually restricted.
Level 3
Displayed with the continuous warning sound when a certain period
of time has passed from Level 2. The engine output is further
restricted than Level 2.
When failure of the DEF/AdBlue quality or the exhaust gas cleaning device occurs repeatedly, the warning level
goes up. If another failure of the DEF/AdBlue quality or the exhaust gas cleaning device occurs in a short period of
time after the failure of that is corrected, the warning level starts from Level 3.
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