Komatsu PW118MR-11, Operation & Maintenance Manual, Page: 215 / 462

• Escalated Warning:
The continuous audible alarm sounds. “three beeps and a
pause”.
The DEF system caution lamp (1) lights up in yellow.
If operation continues for 1 hour after “Warning” started
without taking any actions instructed by the Action Level
table, Inducement advances to “Escalated Warning”.
Press F6 to display the “SCR Information” screen.
“SCR Information” screen message (4): “2 Without treat-
ment, engine power will be derated.”
Move the machine to a safe place and contact your Ko-
matsu Distributor.
The duration of “Escalated Warning” is 1 hour. The remain-
ing time (Minutes) to “Mild Inducement” is displayed in the
column (5) of the “SCR Information” screen.
In “Mild Inducement”, engine performance will be derated.
• Mild Inducement:
The audible alert sounds in short and sharp beeps.
DEF system caution lamp (1) lights up in red.
Action level “L03” lights up in red at action level display (2)
and stays on.
Press F6 to display the “SCR Information” screen.
“SCR Information” screen message (4): “3 Engine power is
under deration.”
Due to the engine power deration, capability of the ma-
chine will be limited.
Move the machine to a safe place and contact your Ko-
matsu Distributor.
The duration of “Mild Inducement” is 1 hour. The remaining
time (Minutes) to “Severe Inducement” is displayed in the
column (5) of the “SCR Information” screen.
In “Severe Inducement”, engine power will be derated fur-
ther.
• Severe Inducement:
The audible alert sounds in continuous beep.
DEF system caution lamp (1) lights up in red.
The action level “L04” is displayed in red (2).
Press F6 to display the “SCR Information” screen.
RKA63380
RKA63390
RKA63400
OPERATION EXPLANATION OF COMPONENTS
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