Maeda MC815C, Operation Manual, Page: 28 / 426

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7. DPF OVERVIEW
7.1 DPF FUNCTION
The DPF (Diesel Particulate Filter) is a device which removes PM (particulate matter) from the
poisonous exhaust gas.
For the DPF to function correctly, be sure to use the specified fuel and engine oil.
• Light oil with sulfur content of 15ppm or less (Ultra Low Sulfur) should be used.
• For the engine oil, use the one specified in “INSPECTION AND MAINTENANCE 6.1 USE
OF LUBRICATING OIL ACCORDING TO TEMPERATURE”.
7.2 DPF REGENERATION
Take care of the following during DPF regeneration.
• Due to the burning/removal process, the temperature of the exhaust gas rises to about
600°C. Do not touch or come close to the DPF muffler, exhaust pipe or exhaust gas.
There is the danger of being burnt.
Also, if there are flammable objects placed in the surroundings, there is the danger of
a fire occurring.
• Since there is the danger of carbon monoxide poisoning, do not carry out DPF
regeneration in places with poor ventilation.
As the exhaust gas is being cleaned, the smell of the exhaust gas will differ from
normal.
As PM builds up on the filter inside the DPF, the filter becomes clogged, reducing the engine
performance.
For that reason, the regeneration process is necessary to burn/remove the PM by raising the
exhaust temperature.
The regeneration process can be carried out automatically or manually.
[Reset Regeneration] (Automatic regeneration)
The exhaust temperature is raised and the PM is
burnt/removed for filter regeneration after 50 hours of
operation for the 1st time only. After that it is carried out
every 100 hours of operation.
During regeneration, the DPF regeneration lamp is lit on
the monitor.
The reset regeneration is implemented automatically; no
special operation is necessary.
NOTES
Although the DPF regeneration lamp is lit during DPF
reset regeneration, this is not a fault or malfunction so the
machine may be used as normal.