Atlas Copco Oil-injected Rotary Screw Compressor G22

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

Compressor stopped and air outlet valve closed

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

Belt tension adjusted by turning tensioning nut

Enter the force and deflection values

Compressor stopped and air outlet valve closed

Front panel and top panel of the compressor housing removed

Filter cover (AF) unscrewed and filter element removed

New element fitted and filter cover screwed on

Enter the current hour reading of the compressor

Sign off on the air filter replacement

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

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

Safety Warning: This procedure should only be performed by trained personnel.

Is the air outlet valve closed?

Are the drain valves and the manual drain valve open?

Is the filler plug unscrewed one turn to permit any pressure in the system to escape?

CAUTION! If the valve does not open at the set pressure stamped on the valve, replace the valve.

Does the valve open at the set pressure stamped on the valve?

No adjustments are allowed. Never run the compressor without a safety valve.