MAINTENANCE AND OPERATING MANUAL
MAINTENANCE
HEF 005÷240
8
ENGLISH
EN
The data in this manual are not binding and may be changed by the manufacturer without notice.
Reproduction of this manual is strictly prohibited.
MAINTENANCE
ATTENTION
Operations to be performed by qualified personnel. It’s necessary to gradually decrease the pressure inside the
filter slowly, in order to avoid damages to the element. A calibrated hole present in the filter head, warns the
operator with a whistle of air, in case he works with filter under pressure.
1 . 5
C a r t r i d g e r e p l a c e m e n t
Filters with grade P, M, S:
change the filter cartridge at least once a year or when the clogging device recom- mends it (if installed) -
∆
p
max. 0,6 bar.
Filters with grade A (activated carbon):
the average life of the filtering element depends on the type of use
and varies from case to case. It is recommended that the cartridge is replaced at least once a year, but depending
on the application this can be required every 6 months.
1.
Remove the bowl.
2.
HEF 094 ÷240 - Remove the hexagonal nut.
3.
Unthread the filter element.
4.
Clean accurately the bowl and the drain device installed.
5.
Clean accurately the head, in particular the seat for cartridge insertion.
6.
Lubricate the O-rings and the sealing surfaces of the filter head and cartridge, use multipurpose grease
(SILICON FREE).
7.
Fit the filter cartridge on the filter head simply by pressing, tightness is ensured by o-ring.
8.
HEF 094÷240 - Tight the hexagonal nut fixing the element.
9.
Fit the filter bowl and tight it accurately.
10.
Stick the adhesive label showing the month and year for the next filtering element change (max. one
year) on the filter bowl.
ATTENTION
Pressurize the plant like shown at paragraph "Starting up" and check for air leakage.
ATTENTION
Always respect the regulations in force for disposing of polluting materials such as filtering elements etc.
Summary of Contents for HEF 005
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