Atlas Copco Oil-Injected Rotary Screw Compressor GA37VSD-175-AFF456

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?

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 with a vacuum cleaner?

Do not use water or solvents to clean the condenser.

Sign off on the monthly maintenance

Refrigeration dryers of ID type contain refrigerant HFC. When handling refrigerant, all applicable safety precautions must be observed.

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.

Did you follow all the safety precautions?

Did you switch off the voltage and close the air inlet and outlet valves before starting any maintenance or repair work?

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

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 drive end side is lubricated by the oil system and requires no periodic maintenance

The non drive end side bearing of motors without grease nipples requires no periodic maintenance

Motors with a grease nipple at the non drive end side must follow the maintenance interval as mentioned on the motor data plate

Sign off on the bearing maintenance

Check air filter service indicator

Check that condensate is discharged during operation