Komatsu HM400-5, Operation & Maintenance Manual

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• Continuous Warning:
The audible alert sounds in repetition of “three beeps and
a pause”.
The KDPF system caution lamp (1) lights up in red.
The DEF system caution lamp (2) lights up in yellow.
The action level “L03” lights up in red at action level dis-
play (3).
Press the menu switch to display the “SCR Information”
screen.
“SCR Information” screen message (5): “2 Without treat-
ment, engine power will be derated.”
Move the machine to the safe place and contact your Ko-
matsu Distributor.
The duration time of “Continuous Warning” is 5 hour. The
remaining time (Minutes) till the next Inducement status of
“Low level Inducement” is displayed in the column (6) of
“SCR Information” screen.
In “Low level Inducement”, engine power will be derated.
• Low level Inducement:
The audible alert sounds in short and sharp beeps.
The KDPF system caution lamp (1) lights up in red.
DEF system caution lamp (2) lights up in red.
The action level “L03” lights up in red at action level dis-
play (3).
Press the menu switch to display the “SCR Information”
screen.
“SCR Information” screen message (5): “3 Engine power is
under deration.”
Due to the reduction of engine power, the machine normal
operation will be limited.
The duration time of “Low level Inducement” is 10 hour.
The remaining time (Minutes) to “Severe Inducement” is
displayed in the column (6) of “SCR Information” screen.
In “Severe Inducement”, engine power will be derated fur-
ther.
Move the machine to the safe place and contact your Ko-
matsu Distributor.
• Severe Inducement:
The audible alert sounds in continuous beep.
The KDPF system caution lamp (1) lights up in red.
DEF system caution lamp (2) lights up in red.
Action level “L04” lights up in red at action level display (3).
Press the menu switch to display the “SCR Information”
screen.
EXPLANATION OF COMPONENTS OPERATION
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