Atlas Copco Oil-Injected Rotary Screw Compressor GA 45

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?

Instructions for air-cooled compressors

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

Cover all parts under the coolers

Remove the service plates at the fan compartment

Remove any dirt from the coolers with a fibre brush. Brush in the direction of the cooling fins

Also remove any dirt from the fan with a fibre brush

Next, clean with an air jet in the reverse direction to normal flow. Use low pressure air. If necessary, the pressure may be increased up to 6 bar(e) (87 psig)

If it is necessary to wash the coolers with a cleaning agent, consult Atlas Copco

Remove the cover used during cleaning

Check air filter service indicator

Check that condensate is discharged during operation

On water-cooled units: check for cooling water flow

Warning: Always shut off all power to the unit before servicing.

Electronic water drain(s) checked?

Wearing parts of the electronic water drain(s) replaced?

For overhauling and for preventive maintenance, a wide range of service kits is available.

Select the type of service kit used

Service kits comprise all parts required for servicing the component and offer the benefits of genuine Atlas Copco parts while keeping the maintenance budget low.

All parts from the service kit used?

A full range of extensively tested lubricants, suitable for your specific needs is available to keep the compressor in excellent condition.

Select the type of lubricant used

Warning: Depressurise the compressor before removing the valve

Operate the safety valve by unscrewing the cap one or two turns and retighten it

Depressurise the compressor before removing the valve

Test the valve (SV) on a separate air line

If the valve does not open at the set pressure stamped on the valve, it needs to be replaced

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

Sign off on the safety valve testing