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SCR CLEANING
The SCR system requires a periodical cleaning process in order to grant the proper functionality.
During the SCR CLEANING process, make sure that the excavator is in a well ventilated area. During the SCR
cleaning process, never stop the engine in order to avoid severe damages to the SCR system and to the engine itself.
NOTICE: During the SCR CLEANING process, the operating characteristics of the engine and of the hydraulic system
may change, and some white smoke may get out from the tail pipe.
NOTICE: Be sure to close the engine hood properly. The exhaust gas generated during SCR CLEANING could melt
the insulation and other material inside the engine hood, causing damage to the excavator.
NOTICE: Never touch the SCR block and the exhaust pipings as the SCR CLEANING process is running. The tem-
peratures of these components may get high enough to burn people, and to ignite or melt materials. During SCR
CLEANING, make sure that the machine is far away from any flammable and explosive material, such as dried grass
or paper scraps.
The machine control system defines two different cleaning processes for the SCR system:
1. AUTO SCR CLEANING
2. MANUAL SCR CLEANING
The type and the condition of the cleaning process is indicated by a specific icon:
Green: AUTO SCR CLEANING is running.
Green (blinking): AUTO SCR CLEANING is suspended and has to be resumed.
Orange: MANUAL SCR CLEANING is running.
Orange (blinking): MANUAL SCR CLEANING is requested, or is suspended and has to be resumed.
Green slashed: MANUAL SCR CLEANING ONLY function is active.
Red: SCR CLEANING is disabled.
3 - CONTROLS AND INSTRUMENTS
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