Atlas Copco Oil-Injected Rotary Screw Compressor GA30+

Is the outside of the electric motor clean for efficient cooling?

If necessary, remove dust with a brush and/or compressed air jet

The bearing at the non-drive end side is greased for life

The bearing at the drive end side is lubricated by the oil system

Sign off on the bearing maintenance

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

Sign off on the compressor 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

Refrigeration dryers of ID type contain refrigerant HFC

When handling refrigerant, all applicable safety precautions must be observed. Please be specifically aware of the following points

Contact of refrigerant with the skin will cause freezing. Special gloves must be worn. If contacted with the skin, the skin should be rinsed with water. On no account may clothing be removed

Fluid refrigerant will also cause freezing of the eyes; always wear safety glasses

Refrigerant is harmful. Do not inhale refrigerant vapours. Check that the working area is adequately ventilated

Be aware that certain components such as the refrigerant compressor and the discharge pipe can become quite hot (up to 110 °C - 230 °F). Therefore, wait until the dryer has cooled down before removing the panels

Before starting any maintenance or repair work, switch off the voltage and close the air inlet and outlet valves;