Atlas Copco Oil-injected Rotary Screw Compressor G15L

Compressor stopped and air outlet valve closed

Front door, internal panel, top cover and pulley protection removed

Belt tension adjusted by turning tensioning nut

Force and deflection measurement

Sign off on the belt tension adjustment

Warning: Ensure the compressor is stopped and the voltage is switched off before proceeding

Front door and internal panel removed

Measure the force and deflection

Refer to the sticker on the frame for the values to be measured

Sign off on the belt tension check

Warning: Always use appropriate safety gear while performing this procedure

Is the oil cooler clean before starting the procedure?

If the oil cooler is not clean, report to the maintenance team and stop the procedure

Did you use a fibre brush to clean the oil cooler?

Did you avoid using a wire brush or metal objects?

Sign off on the oil cooler cleaning

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

Depressurize the air receiver by opening drain valve

Depressurize the compressor by unscrewing filler plug one turn to permit any pressure in the system to escape. Remove the plug after the system is depressurized

Wait 5 minutes for the foam in the oil collector to disappear

Check the oil level through the sight-glass. If the oil level is lower than the minimum level, add oil until the maximum level is reached

Never mix oils of different brands or types. A label, indicating the type of oil filled ex-factory, is attached on the air receiver/oil tank

Before carrying out any operation on the machine, ensure that the electric power supply has been disconnected and that the machine has been depressurized

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

Depressurise the compressor by unscrewing filler plug one turn to permit any pressure in the system to escape

Remove the plug after the system is depressurised

Depressurise the air receiver by opening drain valve

Remove plug, drain the oil by opening drain valve

Close the valve and refit the plug after draining

Deliver the drained oil to the local oil collection service

Remove oil filter and separator