Maintenance Section
-135-
NOTICE
Keep monitoring the vehicle condition via the SCREEN
display.
• At a workplace which is near inflammables or, heavily
populated, or an indoor space, disable the SCR cleaning
function.
• Be careful of the high temperature of the exhaust tube
or other parts during SCR cleaning.
• Do not operate the vehicle (e.g. pushing the accelerator
pedal) during SCR cleaning.
• Do not switch off the ignition during SCR cleaning. The
SCR system might be damaged.
Automatic SCR Cleaning
The ECU attempts to start SCR cleaning during
working—“automatic SCR cleaning”—at a proper
moment after determining the moment. Once automatic
SCR cleaning starts, the high temperature indicator lamp
lights up with a popup appearing for the operator to notice
it.
Display that notifies the operator of automatic SCR
cleaning
If automatic SCR cleaning is failed due to a low exhaust
temperature, you should perform it after the vehicle stops.
Therefore, it is recommended to keep the vehicle working
as far as possible in order to ensure automatic SCR
cleaning is fully completed. While automatic SCR
cleaning is being carried out, exhaust emissions above
500 ℃ may cause fires or burns.
Setting this switch to position "3" prohibits automatic SCR
Cleaning in an environment subject to dust, explosion or
regulated noise level. At position "3", a pop-up appears
as shown below:
The switch returns to the normal position of "2" after
pressed by the operator to position "1". However, it does
not return when pressed to position "3" and the operator
shall return the switch from position "3".
SCR Cleaning inhibited
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