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12 Maintenance
Valves, expansion silencers, strainers, adsorbent and dew-point sensor are subject to wear
and need to be replaced according to the service intervals specified bellow. See the service
kits and spare parts table on the next page for more information.
PART MAINTENANCE 1 day 1 month 1 year 2 years 4 years
Dryer operation INSPECTION x
Complete dryer VISUAL INSPECTION x
Pre/After filter element REPLACE x
Expansion silencer REPLACE x
Valves* REPLACE x
Adsorbent** REPLACE x
Strainers CLEAN/REPLACE x
Dew-point sensor
(optional)
CALIBRATION x
*Refers to moving parts and sealings.
**For stable operation replacement of adsorbent is required after every 4 years of operation.
However due to inappropriate use or unexpected inlet/operating conditions adsorbent can be
damaged sooner and in this case replacement is required sooner.
It is necessary to wear respiratory protective equipment when working with the
adsorbent. Adsorbent is a crumbling material that is producing fine dust which can
cause respiratory complications if inhaled in sufficient quantities.
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