Komatsu PW118MR-11 Operation & Maintenance Manual page 214

EXPLANATION OF COMPONENTS
The inducement system progresses in 5 levels: "Warning", "Es-
calated Warning", "Mild Inducement", "Severe Inducement" and
"Final Inducement". The Inducement strategy includes visual
alert by the DEF 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 (Mild Inducement)" and advances to further deration
when "L04 (Severe Inducement and Final Inducement)" is dis-
played. Once the system advances to "Final Inducement", the
engine speed is fixed to low idle. 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.
Perform the following procedure.
Press F6 on the standard screen to display the "SCR Informa-
tion" screen of the user menu.
If either the parking brake lever and work equipment lock lever
are set to LOCK position or the joystick (steering, directional
and gear shift lever) is in NEUTRAL position for over 3 sec-
onds, "SCR Information" screen of the user menu will pop up
automatically while the Urea SCR system is in Inducement.
"SCR Information" screen displays remaining time to the next
Inducement status in the column (5), and information on the
Urea SCR System condition (3), and the current status of In-
ducement (4).
• Warning:
No audible alert.
The DEF system caution lamp (1) lights up in yellow.
Note: Action Level "L01" once shows up in yellow on the
machine monitor (2) for 2 seconds and goes out.
Press F6 to display the "SCR Information" screen.
"SCR Information" screen message (4): "1 Please inspect
and maintain SCR system."
Move the machine to a safe place and contact your Ko-
matsu Distributor.
If operation continues for 1 hour after "Warning" started
without taking any actions instructed by the Action Level
table, Inducement advances to "Escalated Warning".
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OPERATION
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