7 Maintenance
7.1 Maintenance
General recommendations and precautions
The dryer does not need any specific maintenance. Nevertheless, before carrying out any
maintenance or corrective activity, read the following recommendations and safety precautions
and act accordingly:
• Switch off the dryer by putting main switch S1 to position 0.
• Disconnect all pressure sources and vent the internal pressure of the system before
dismantling any pressurized component.
• Use genuine Atlas Copco spare parts only. Consult the Spare Parts List for part numbers.
For preventive maintenance, dedicated Service kits are available.
• Check for correct operation after maintenance.
Filters and valves installed between the compressor, the dryer and the air consumer
may need other maintenance activities than those mentioned below (e.g. draining the
filters and replacing the filter elements). Refer to the appropriate manual for more
information.
Preventive maintenance schedule
Frequency Service plan Activity
Daily Check the display panel. Information on the pressure dew point (PDP)
and service messages can be found here.
Every 6 months or
every 4000 hours
of operation (1)
A • Check for damaged wiring or loose connections.
• Check for air leaks.
• Replace the in- and outlet filter cartridges.
• Replace the silencers.
Every year or
every 8000 hours
of operation (1)
B • Service plan A
Every five years or
every 40000 hours
(1)
C • Service plan B
• Replace desiccant
• Replace shuttle valves
Always replace all o-rings, seals and nylon washers that come free
when executing the scheduled maintenance.
(1) whichever comes first
In normal working conditions, the lifetime of the desiccant is approximately 5 years.
It is recommended to have the desiccant replaced by a qualified Atlas Copco service technician.
After each 8000 hours service interval, the timer card needs to be reset with a magnetic key, see
section Resetting the service counter or the instruction, delivered with the service kits.
All spare parts required for scheduled maintenance are included in specific service kits. Consult
the spare parts list for part number information.
Instruction book
26 API093050
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