Fayat Group BOMAG BW177D-50 Operating Instructions, Maintenance Instructions page 100

Section 5
MAINTENANCE
Fig. 162
Pull out the main filter element (Fig. 162) with
•
light turning movements.
Cleaning the main filter element
if necessary, the main filter element may
be cleaned up to five times� it must be
renewed at the latest after a maximum
utilization period of two years�
The number of cleaning intervals of the
main filter element can be marked on
the safety element with a ballpoint pen
or a felt pen�
Cleaning does not make sense if the
main filter element is covered with a
sooty deposit� use a new filter cartridge�
incorrectly handled inserts may be
ineffective because of damage (e�g�
cracks) and cause damage to the engine�
replace the safety cartridge if the main
filter element is defective!
Additional cleaning intervals between
two filter services signalized by the fault
monitoring board are not necessary�
5-44
Fig. 163
Blow the filter cartridge out from inside to
•
outside with dry compressed air (max. 5 bar)
(Fig. 163), until all dust has been removed.
Fig. 164
Examine the filter cartridge with a lamp for cracks
•
and holes in the paper bellows (Fig. 164).
do not continue to run the machine
with a damaged main filter element� if
in doubt use a new main filter element�
4-2012