Komatsu PC138US-11 Operation & Maintenance Manual page 194

EXPLANATION OF COMPONENTS
• Severe Inducement:
The audible alert sounds in continuous beep.
The DEF system caution lamp (1) lights up in red.
Action level "L04" lights up in red (2).
Press F6 to display the "SCR Information" screen.
"SCR Information" screen message (4): "4 Engine power is
under heavy deration."
Due to the further deration of engine power, capability the
machine will be limited further.
Move the machine to the safe place and contact your Ko-
matsu Distributor.
The duration of "Severe Inducement" is 1 hour. The re-
maining time (Minutes) to "Final Inducement" is displayed
in the column (5) of the "SCR Information" screen.
In "Final Inducement", engine speed will be fixed at low
idle.
Engine power can be restored temporarily from power derate. If Inducement advances to "Severe Induce-
ment" and it becomes necessary to restore engine power, use the engine power restoration function to
move the machine to a safe place and contact your Komatsu distributor. This engine power restoration
works only when the Inducement status is "Severe Inducement" and relieves back temporarily to the power
deration of "Mild Inducement". The operator can restore engine power through the machine monitor. For the
engine power restoration procedure, refer to the section of "Temporary Restoration from Inducement" in this
manual.
• Final Inducement:
The audible alert sounds in continuous beep.
The DEF system caution lamp (1) lights up in red.
Action level "L04" lights up in red (2) and stays on.
Press F6 to display the "SCR Information" screen.
"SCR Information" screen message (4): "5 Engine is run-
ning at low idle."
Engine speed is fixed at low idle to disable practical ma-
chine operation.
Move the machine to a safe place and contact your Ko-
matsu Distributor.
TEMPORARY RESTORATION FROM INDUCEMENT
Temporary Restoration from Inducement is one of the Inducement strategies allowed to be included in Urea
SCR systems.
In case the Urea SCR system advances to "Severe Inducement", engine power is derated heavily. This may
cause difficulties of moving the machine to a safe place for adding DEF or troubleshooting and correcting
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OPERATION