Atlas Copco Oil-Injected Rotary Screw Compressor GA 55+

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?

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

On compressors with integrated dryer

Compressor stopped, air outlet valve closed and voltage switched off?

Dirt removed from the condenser inlet with a vacuum cleaner?

Cleaned with an air jet in the reverse direction of the normal flow using low pressure air?

Kept 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

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

Compressor stopped and voltage switched off

Snap clips of air filter (AF) released and cover removed

Old air filter element discarded

Service indicator (VI) reset by pushing the knob in the extremity of the body

Air filter service warning reset

Sign off on the air filter element replacement

Warning: Always use genuine Atlas Copco parts for maintenance.

Electronic water drain(s) in working condition?

If not, replace the wearing parts of the electronic water drain(s).

Select the type of service kit used

Service kits comprise all parts required for servicing the component.

All parts from the service kit used?

A full range of extensively tested lubricants is available.

Lubricants used to keep the compressor in excellent condition?