Komatsu HB365LC-3 Operation & Maintenance Manual page 204

EXPLANATION OF COMPONENTS
Inducement status (4): "3 Engine power is under deration."
Hybrid system power is also under deration. This results in
low swing motor power
Add DEF to the DEF tank immediately.
• Severe Inducement:
The audible alert sounds in continuous beep.
No gradation of the DEF level gauge lights up .
The DEF level caution lamp (1) lights up in red.
Hybrid caution lamp lights up in red on warning display (7).
The Action level "L04" is displayed in red (5).
Press F6 to display the "SCR Information" screen.
When all gradations of the DEF level gauge go off, DEF re-
filling amount is approximately 39 ℓ to fill up the DEF tank.
Inducement status (4): "4 Engine power is under heavy de-
ration."
Due to the further deration of engine power, capability of
the machine will be limited further.
Also, further deration of hybrid system power causes lower
swing motor power.
Add DEF to the DEF tank 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
the "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 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 KDPF and the EGR system)
If any abnormality is detected in the DEF quality or in the Urea SCR system, the Inducement strategy is activa-
ted.
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 (1), and Action Level displayed
on the machine monitor (2), and the audible 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 advances to further
deration when "L04 (Severe Inducement)" is displayed. 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.
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OPERATION