Atlas Copco Oil-Injected Rotary Screw Compressor GA7

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?

Sign here to confirm that you followed all the safety precautions.

Is strainer cleaning necessary?

WARNING! No adjustments are allowed. Never run the compressor without safety valve. Before removing the valve, depressurise the compressor.

Valve (SV) opens at the set pressure stamped on the valve

Valve (SV1) opens at the set pressure stamped on the valve

Test temperature shut-down function

Sign off on the safety valve testing

Select the type of Atlas Copco Fluid used

Run the compressor until warm. Stop the compressor. Close the air outlet valve and switch off the voltage.

Depressurised the compressor by opening manual drain valve(s)?

Depressurised the air receiver/oil tank by unscrewing oil filler plug just one turn?

Drained the oil by opening valve?

Collect the oil and deliver it to the local collection service. Refit and tighten the drain and vent plugs after draining.

Removed the oil filter and cleaned the seat on the manifold?

Oiled the gasket of the new filter and screwed it into place?

WARNING! The operator must apply all relevant Safety precautions

Run the compressor until warm. Stop the compressor, 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

Wait 5 minutes and remove the oil separator (OS). Clean the seat on the manifold. Oil the gasket of the new separator and screw it into place. Tighten firmly by hand

Fill the oil tank (OT) with oil until the level reaches the middle of sight-glass (Gl)

Take care that no dirt drops into the system. Refit and tighten filler plug (FC)

Sign off on the oil separator replacement