Atlas Copco Oil-Injected Rotary Screw Compressor GA45 FF

Check coolers. Clean if necessary

Remove the air filter element and inspect. If necessary, clean using an air jet. Replace damaged or heavily contaminated elements

Check the filter element of the electric cabinet. Replace if necessary

Condensate discharged when pressing the test button on top of the electronic water drain?

On compressors with integrated dryer, stop the compressor, close the air outlet valve and switch off the voltage.

Dirt removed from the condenser inlet with a vacuum cleaner?

Condenser cleaned with an air jet in the reverse direction of the normal flow?

Use low pressure air. Keep the compressed air nozzle more than 30 cm away from the condenser to avoid damaging the of condenser fins.

Dust removed from inside the dryer, e.g. with a vacuum cleaner?

Do not use water or solvents to clean the condenser.

Sign off on the monthly maintenance

Instructions for air-cooled compressors

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

Cover all parts under the coolers

Remove the service plates at the fan compartment

Remove any dirt from the coolers with a fibre brush. Brush in the direction of the cooling fins

Also remove any dirt from the fan with a fibre brush

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)

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

Remove the cover used during cleaning

WARNING! The operator must apply all relevant Safety precautions

Always drain the compressor oil at all drain points. Used oil left in the compressor can contaminate the oil system and can shorten the lifetime of the new oil

Never mix lubricants of different brands or types as they may not be compatible and the oil mix will have inferior properties. A label, indicating the type of oil filled ex-factory, is stuck on the air receiver/oil tank

Run the compressor until warm. Stop the compressor after 3 minutes of unloaded operation. 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

Air cooled units: loosen the vent plug (VP) of the oil cooler and wait for 5 minutes

Remove drain plug (DP1) and open drain valve (Dm)

Also drain the oil by removing the drain plug: on the check valve and on the gear casing

Collect the oil in a collector and deliver it to the local collection service. Refit and tighten the drain and vent plugs after draining

Replace the filter element of the electric cabinet

Open the manual drain valve (Dm) to clean the filter of the automatic drain

Test the temperature shut-down function

On water-cooled units: any water leakage found?