Safety regulations
10
Cleanliness
Today modern components of diesel injection consist of high-precision parts which are exposed to extreme
stresses. The high-precision technology requires the utmost cleanliness during all work on the fuel sys-
tem.
Even a particle of dirt over 0.2 mm can lead to the failure of components.
The measures described as follows are therefore essential before work begins:
Risk of damage from penetration of dirt!
D Before working on the clean side of the fuel system clean the engine and the engine
compartment (high-pressure cleaner). During cleaning the fuel system must be closed
D Carry out visual inspection for any leakage or damage to the fuel system
D Do not spray the high-pressure cleaner direct onto the electric components, or alternati-
vely keep them covered
D Do not carry out any welding or sanding work in the engine compartment during mainte-
nance / repair
D Avoid air movements (any swirling of dust when starting engines)
D The area of the still closed fuel system must be cleaned and dried with the aid of com-
pressed air
D Remove detached particles of dirt such as paint chippings and insulation material with a
suitable extractor (industrial type vacuum cleaner)
D Cover areas of the engine compartment from which dust particles could be detached
with clean foil
D Wash your hands and put on clean work clothes before starting the disassembly work
D Clean tools and working materials before starting to work
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