Atlas Copco Oil-injected Rotary Screw Compressor G18

WARNING! The belts must be replaced as a set, even if only one of the belts is worn. Only use genuine Atlas Copco belts.

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

Remove the front door, the internal panel, the top cover, the pulley protection and the left side panel

Release the belt tension by loosening tensioning nut

Tension belts as described above

Operation of sensors, electrical interlockings and components checked

Temperature shut-down switch tested

Is the wall thickness of the air receiver less than the minimum value specified in the technical documentation?

If yes, the air receiver must no longer be used and must be replaced.

Sign off on the compressor maintenance

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.

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

Atlas Copco Roto-Xtend Duty Fluid used?

Service the instrument block: Thermostatic and MPV kit

Check and clean the inlet valve. Use the unloader kit

Sign off on the compressor maintenance