Page 133 - Mechanic Diesel - TT

MECHANIC DIESEL - CITS

Diesel fuel filter and water separator
Diesel fuel filter - Various types of measures are taken to purify the fuel during production, yet some dirt still
remains in the fuel. Apart from this, the dirt of the means used to transport diesel from one place to another also
gets mixed in the diesel, hence it is necessary to clean the diesel properly before delivering it to the injectors.
Diesel itself is a heavy oil and if dust, soil particles etc. get mixed in it, it creates blockage while going to the
transfer pump, fuel injection pump and injector etc. used in the fuel system. There are very narrow passages in
these parts, in which dirt gets stuck or freezes and closes those passages. Therefore, filters are used to purify fuel
in diesel engines. There are arrangements at many places to filter diesel, but two main filters are definitely used.
In these, paper, cotton and fine wire mesh etc. are used as elements to filter diesel.

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CITS : Automotive - Mechanic Diesel - Lesson 31 - 38