Atlas Copco GA 11+ Instruction Book page 113

Instruction book
Preventive Maintenance schedule programmed in the ElektronikonTM controller
Running hours
4000 (1)
8000 (2)(3)
(1): or yearly, whichever comes first
(2): or every 2 years, whichever comes first
(3): For all 8000 hours actions, contact Atlas Copco.
The indicated oil exchange intervals are valid for standard operating conditions (see section
Reference conditions and
data). Exposure of the compressor to external pollutants, operation at high humidity combined
with low duty cycles or operation at higher temperatures may require a shorter oil exchange
interval. Contact Atlas Copco if in doubt.
Oils
In order to achieve the best machine performance and guarantee the reliability, it is required to
use genuine Atlas Copco Lubricants. Their tailor made formulation is the result of years of field
experience, research and in-house development. Consult the Spare Parts list for part number
information.
Relation between operating conditions and duty type
Ambient temperature
Below 30 °C (86 °F)
Below 30 °C (86 °F)
Below 30 °C (86 °F)
Below 30 °C (86 °F)
Between 30 °C (86 °F) and 40 °C (104 °F)
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Action
Change oil and oil filter (except when Roto-Xtend Duty Fluid is used).
Replace the air filter element.
Check condition of the air intake hose between air filter and compressor element (where
applicable).
Check pressure and temperature readings.
Check operation of cooling fans of converter.
Check blow-off solenoid valve after stopping and pressing the emergency stop button.
Clean coolers. Check and clean cooling fan assembly.
Replace the oil separator element.
All the actions for 4000 hrs.
Change oil and oil filter (when Roto-Xtend Duty Fluid is used).
Replace the filter elements of the electric cabinet.
Replace the non return valve of the scavenge line and clean the restriction nozzle.
Replace the minimum pressure valve, and replace the thermostatic valve. Remove
carefully.
Replace the electronic drain valve.
Carry out a LED/display test.
Check for possible air and oil leakages.
Have safety valve tested.
limitations) and nominal operating pressure (see section
Avoid mixing lubricants of different brands or types as they may not be compatible and
the oil mix may have inferior properties. A label, indicating the type of oil filled ex factory
is stuck on the air receiver/oil tank.
Humid Dust
No No
Yes No
No Yes
Yes Yes
No No
Compressor
Duty type
Mild
Mild
Mild
Demanding
Demanding
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