Komatsu PC490-11, Installation And Instruction Manual

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• Warning:
The audible alert sounds in short and sharp beeps.
The KDPF system caution lamp (1) lights up in red.
The action level “L03” lights up in red at action level dis-
play (3).
Press F6 to display the “SCR Information” screen on the
user menu screen when the Standard screen is on.
“SCR Information” screen message (5): “1 Please inspect
and maintain SCR system.”
Engine power is derated.
Move the machine to the safe place and contact your Ko-
matsu Distributor.
If operation continues for 5 hour after “Warning” started
without taking any actions instructed by the Action Level
table, Inducement advances to “Continuous Warning”.
• 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 F6 to display the “SCR Information” screen when
the Standard screen is on.
“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 F6 on the standard screen to display the “SCR Infor-
mation” screen on the user menu screen.
EXPLANATION OF COMPONENTS OPERATION
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