Komatsu PW118MR-11, Operation & Maintenance Manual, Page: 211 / 462

The inducement system progresses in 5 levels: Warning, Escalated Warning, Mild inducement, Severe Induce-
ment and Final Inducement.
The DEF level caution lamp (1) on the machine monitor will
light up, audible alert will start, then action level will be dis-
played on the machine monitor, and engine power will be derat-
ed in steps.
In Action Level “L03 (Mild Inducement)” and “L04 (Severe In-
ducement and Final Inducement)” engine power will be derat-
ed. When action level “L03” or “L04” is displayed, move the
machine to a safe place and add DEF.
If operation is continued further without adding DEF at Severe
Inducement, engine speed will be fixed at low idle. (Final In-
ducement)
The content of the warning can be checked on the “SCR Information” screen of the user menu.
Perform the following procedure.
Press F6 on the standard screen to display the “SCR Informa-
tion” screen of the user menu.
If either the lock lever is set to LOCK position or the travel lever
and control levers are in NEUTRAL position for over 3 sec-
onds, “SCR Information” screen of the user menu will pop up
automatically while the Urea SCR system is in Inducement.
“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.
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.
RKA63340
RKA63340
OPERATION EXPLANATION OF COMPONENTS
3-139
WENAM00130