Komatsu HB215LC-3, Operation & Maintenance Manual

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Status of Inducement (4): “4 Engine power is under heavy
deration.”
Due to the further deration of engine power, capability the
machine will be limited further.
The hybrid system output is also limited, and the swing
motor output is limited.
Add DEF immediately.
Engine power can be restored temporarily from power derate. 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 en-
gine power restoration procedure, refer to the section of “Temporary Restoration from Inducement” in this
manual. Once in “Severe Inducement” and it becomes necessary to restore engine power, use the engine
power restoration function to move the machine to a safe place and add DEF.
INDUCEMENT STRATEGY WHEN ABNORMALITIES ARE DETECTED IN THE
UREA SCR SYSTEM DEVICES (EXCEPT ABNORMALITIES IN THE EGR SYS-
TEM)
If any abnormality is detected in the DEF quality or in the Urea SCR system, the Inducement strategy is activat-
ed.
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 DEF system caution lamp on the machine monitor (1), and
action level displayed on the machine monitor (2), and the 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 (Low level Inducement)” and ad-
vances to further deration when “L04 (Severe Inducement)” is
displayed. When action level “L03” is displayed, move the ma-
chine 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 the lock lever is set to LOCK position or the travel lever and
control levers are in NEUTRAL position for over 3 seconds,
“SCR Information” screen of the user menu will pop up auto-
matically while the Urea SCR system is in Inducement.
EXPLANATION OF COMPONENTS OPERATION
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