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Operator's instructions
8. Options
Filter with Pre-Cat
The filter with Pre-Cat system is constructed using silicon carbide (SiC) filters with oxidation
catalysts, positioned in front to guarantee the reduction of the unburned hydrocarbon (HC) and carbon
monoxide (CO) emissions.
This combination allows the nitrogen dioxide (NO2) level to be raised which, unlike oxygen (O2),
allows combustion of the particulate at compatible temperatures with those of the exhaust gases.
The silicon carbide particulate filter does not require frequent maintenance. Cleaning is required and
consists of cooking the filter and pulsing air through it to remove ash.
This cleaning is normally carried out every 1200 operating hours, or whenever the electronic control
unit indicates, cleaning is required.
The oxidation catalyst must be cleaned every 3000 hours of use by washing in warm water and a
neutral detergent.
The system can be applied to all diesel engines, without limitations in terms of engine age.
The operation of the filter is only guaranteed with the use of diesel that meets the EN590
legislation.
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