Komatsu PC700LC-11, Operation & Maintenance Manual

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• 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.
“SCR Information” screen message (4): 1 “DEF low level
warning appears.”
Add DEF to the DEF tank immediately.
• Escalated Warning:
The audible alert sounds in repetition of “Triple-beep
alarm”.
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.
“SCR Information” screen message (4): 2 “Without treat-
ment, engine power will be derated.”
Add DEF to the DEF tank immediately.
• Mild Inducement:
The audible alert sounds in “Intermittent alarm”.
1 gradation of the DEF level gauge light up in red.
The DEF level caution lamp (1) lights up in red.
Action Level “L03” is displayed in red (5).
Press F6 to display the “SCR Information” screen.
EXPLANATION OF COMPONENTS OPERATION
3-124