Atlas Copco Oil-Injected Rotary Screw Compressor GA 18

Check the electrical connections. Tighten if required according to values indicated on service diagram

Check the condition of the air intake hose of the air filter

On Full-Feature units: clean condenser of dryer and replace the filter mesh of the drain

Test temperature shutdown function

Sign off on the compressor maintenance

WARNING! The operator must apply all relevant Safety precautions

Run the compressor until warm. Stop the compressor, close the air outlet valve and switch off the voltage. Wait a few minutes and depressurise by unscrewing oil filler plug (FC) just one turn to permit any pressure in the system to escape

Wait 5 minutes and remove the oil separator (OS). Clean the seat on the manifold. Oil the gasket of the new separator and screw it into place. Tighten firmly by hand

For compressors equipped with an Elektronikon® regulator, see section Service warning

For compressors equipped with an Elektronikon® Graphic regulator, see section Service menu;

Warning: This procedure requires trained personnel with PPE!

Enter the element outlet temperature

Select the exchange interval based on the temperatures

Was the Roto-Xtend Duty Fluid successfully replaced?

Sign off on the fluid replacement

Check coolers, clean if necessary

Remove the air filter element. Clean using an air jet and inspect. Replace damaged or heavily contaminated elements

Check the filter element of the electric cabinet (where applicable). Replace if necessary

On Full-Feature units: Check condenser of dryer and clean if necessary. Check and clean the filter

CAUTION! Never use a high pressure water jet to clean the compressor

Stop the compressor, close the air outlet valve and switch off the voltage

Cover all parts under the coolers

Remove any dirt from the coolers with a fibre brush. Never use a wire brush or metal objects

Next, clean with an air jet in the reverse direction to normal flow. Use low pressure air. If necessary, the pressure may be increased up to 6 bar(e) (87 psig)

Is it necessary to wash the coolers with a cleaning agent?

If it is necessary to wash the coolers with a cleaning agent, consult Atlas Copco

Sign off on the coolers cleaning