Komatsu H75051, Operation & Maintenance Manual

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Perform the following procedure.
Press the menu switch to display the “SCR Information” screen
of the user menu.
After a lapse of 3 seconds to stop the machine, “SCR Informa-
tion” screen is displayed.
“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).
• Warning:
The audible alert sounds in “Intermittent alarm”.
The Engine system caution lamp (1) 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): “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 “Intermittent alarm”.
The Engine 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.
OPERATION EXPLANATION OF COMPONENTS
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