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OPERATION
abnormalities of the Urea SCR system. For temporary remedies from these difficulties the operator can restore
engine power for a short time to the deration of "Mild Inducement" through the machine monitor. Note that "Tem-
porary Restoration from Inducement" does not regain full engine power.
"Temporary Restoration from Inducement" can be activated only when the Urea SCR system is in "Severe In-
ducement". The maximum duration is limited to 30 minutes in each restoration operation, and 3 operations are
allowed, but "Temporary Restoration from Inducement" is turned off whenever the system advances to "Final In-
ducement" even if either 30 minutes or 3 operations are not used up.
All the abnormalities of the Urea SCR system need to be corrected to regain another restoration capability.
If all the abnormalities of the Urea SCR system are not corrected when the system is in "Severe Inducement",
the system advances to "Final Inducement" in 1 hour after "Severe Inducement" started and engine speed will
be fixed to low idle to disable practical machine operation. If the system advances to "Severe Inducement", uti-
lize "Temporary Restoration from Inducement" immediately.
Procedure to activate "Temporary Restoration from Inducement".
1.
Press F6 to display the "SCR Information" screen when
the Standard screen is on, only when the Urea SCR sys-
tem is in "Severe Inducement".
2.
Press F6 to display the menu windows popping up in the
bottom half of the "SCR Information".
The menu windows popping up in the bottom half of the
"SCR Information" screen alternate every 15 seconds as
shown in the graphics A and B.
3.
Press F6 while the pop-up menu screen B is displayed.
The "Engine power Recovery" window will be displayed.
If F6 is not pressed for 30 seconds, " Standard Screen" will
be displayed, and start again by pressing F6.
The remaining number of operations of Temporary Resto-
ration from inducement is displayed in the column (1) of
the pop-up menu window B.
WENAM00111
EXPLANATION OF COMPONENTS
3-125
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