Komatsu D61EX-24 Operation & Maintenance Manual page 197

EXPLANATION OF COMPONENTS
• Final Inducement:
The audible alert sounds in continuous beep.
The KDPF system caution lamp (1) lights up in red.
The DEF system caution lamp (2) lights up in red.
Action level "L04" lights up in red (3) at action level display.
Press F6 to display the "SCR Information" screen.
"SCR Information" screen message (5): "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 abnor-
malities of the Urea SCR system. For temporary remedies from these difficulties the operator can restore engine
power for a short time to the deration of "Mild Inducement" through the machine monitor. Note that "Temporary
Restoration from Inducement" does not regain full engine power.
"Temporary Restoration from Inducement" can be activated only when the Urea SCR system is in "Severe In-
ducement". The maximum duration is limited to 30 minutes in each restoration operation, and 3 operations are
allowed, but "Temporary Restoration from Inducement" is turned off whenever the system advances to "Final In-
ducement" even if either 30 minutes or 3 operations are not used up.
All the abnormalities of the Urea SCR system need to be corrected to regain another restoration capability.
If all the abnormalities of the Urea SCR system are not corrected when the system is in "Severe Inducement",
the system advances to "Final Inducement" in 1 hour after "Severe Inducement" started and engine speed will
be fixed to low idle to disable practical machine operation. If the system advances to "Severe Inducement", uti-
lize "Temporary Restoration from Inducement" immediately.
Procedure to activate "Temporary Restoration from Inducement".
1.
Press F6 to display the "SCR Information" screen when
the Standard screen is on, only when the Urea SCR sys-
tem is in "Severe Inducement".
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OPERATION