Man D 2842 LE 620 Repair Manual page 13

When carrying out the work it is essential to comply with the following measures:
Risk of damage from penetration of dirt!
D When the clean side of the fuel system has been opened it is not permissible to use
compressed air for cleaning
D During assembly work loose dirt must be removed with the aid of suitable extractors
(industrial type vacuum cleaners)
D Use only fluff-free cleaning cloths on the fuel system
D Only tools without any damage may be used (cracked chrome coatings)
D When removing and installing components do not use materials such as cloths, cardbo-
ard or wood since these could shed particles and fine fibres
D If any paint chips / flakes off when connections are loosened (from possible over-coa-
ting) these chippings must be carefully removed before finally loosening the screw con-
nection
D The connection openings of all removed parts on the clean side of the fuel system are
to be closed immediately with suitable caps (see special tools, page 172)
D These caps / stoppers must be packed protected from dust prior to use and after being
used once they must be disposed of
D Following this all the components must be carefully stored in a clean, closed container
D Never use used cleaning or testing liquids for these components
D New parts must not be removed from their original packing material until directly before
use
D Work on removed components may be carried out only at a workplace specially equip-
ped for it
D If removed parts are shipped always use the original packing material of the new part
Safety regulations
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