Komatsu D61EX-24 Operation & Maintenance Manual page 189

EXPLANATION OF COMPONENTS
"SCR Information" screen displays the DEF level caution lamp
(1), the DEF level gauge (2), information on the Urea SCR Sys-
tem condition (3), and the current status of Inducement (4).
If Inducement starts, stop the machine in a safe place and add
DEF.
Once the audible alert starts, "The buzzer cancel switch" does
not work unless DEF is added.
• Warning:
2 gradations of the DEF level gauge light up in the red
range.
The DEF level caution lamp (1) lights up in red.
No audible alert.
No Action level is displayed.
Press F6 to display the "SCR Information" screen.
Inducement status (4): "1 DEF low level warning appears."
Add DEF to the DEF tank immediately.
• Escalated Warning:
The audible alert sounds in repetition of "three beeps and
a pause".
2 gradations of the DEF level gauge light up in the red
range.
DEF level caution lamp (1) lights up in red.
No Action level is displayed.
Press F6 to display the "SCR Information" screen.
Inducement status (4): "2 Without treatment, engine power
will be derated."
Add DEF to the DEF tank immediately.
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OPERATION