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EXPLANATION OF COMPONENTS
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 "Low level 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 Induce-
ment" in this manual.
Inducement strategy when abnormality is found in the KDPF System by the
Urea SCR system
If any abnormality is detected in the KDPF System through the Urea SCR system, the Inducement strategy is
activated.
The inducement strategy progresses in 4 levels, "Warning",
"Continuous Warning", "Low level Inducement", and "Severe In-
ducement". The Inducement strategy includes visual alert by
the KDPF System caution lamp (1), DEF system caution lamp
(2), and Action Level displayed on the machine monitor (3), au-
dible alert by a buzzer and stepwise engine power deration that
advances to speed limitation to low idle. Engine power deration
starts with Action Level "L03 (Warning, Continuous Warning
and Low level Inducement)" and advances to further deration
when "L04 (Severe Inducement)" is displayed. Once the sys-
tem advances to "Severe Inducement", the engine power will
be further derated. If "L03" is displayed, move the machine to a
safe place and contact your Komatsu distributor.
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 remaining time to the next
Inducement status in the column (6), and information on the
Urea SCR System condition (4), and the current status of In-
ducement (5).
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OPERATION
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