Manual
according to regulation DIN 82079
Version 09.19
Date: 02.09.2019
Name: Manual_VARIO-PA
GIEBEL FilTec GmbH • Web
• Tel +49 (0) 7946 944401-0
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Section 10:
maintenance schedule
1. Optical check of the silica gel for saturation
Check:
The loading condition of the silica gel is to be determined
by visual inspection of the adsorber. The colour orange indicates that the
silica gel can still adsorb water and air is dehumidified. If the silica gel is
completely saturated, the colour changes to green.
If there are oil particles on the silica gel, these close the pores and the
adsorption capacity is reduced. This causes the silica gel to discolour
more slowly and unevenly.
Action:
The silica gel is removed from the adsorber. New silica gel is refilled. With
disposable adsorbers, the entire adsorber part is changed.
Proceed as described in "Part 6 Maintenance".
Weekly
2. Check filter unit for impurities
Check: Remove
the lid from the adsorber part and remove the activated charcoal disc.
Then empty the desiccant. The filter unit can then be removed. This must
be checked for impurities and should be free of dirt for smooth operation.
Action:
The filter unit is part of the spare parts package and should be replaced if
there is contamination.
Proceed as described in "Part 6 Maintenance".
Half-yearly
3. Check prefilter disc for impurities
Check:
The prefilter disc should be checked for impurities that may clog it and
prevent free air entry.
Action:
Clean the prefilter disc with compressed air to remove dirt particles and
dust.
Half-yearly
4. Check seals for wear
Check: The
seals and O-rings installed in
the adsorber and in the valve part must be checked for their perfect
condition. For this purpose, the flat seal in the cover, the O-rings of the
filter unit, and the O-rings between the receiving and adsorber parts
should be examined for brittleness.
Action:In
case of existing damage, the seals or O-rings should be replaced. These
are part of the spare parts package.
Proceed as described in "Part 6 Maintenance".
Yearly
