Atlas Copco Screw Compressor GA22 FF

Apply all relevant safety precautions, including those mentioned in this book.

For GA Workplace/Workplace FF, press stop button (1-Fig. 3.5); Wait until the compressor has stopped (approx. 30 seconds); Press emergency stop button (S3-Fig. 3.4) and switch off the voltage

For Pack/Pack FF, press stop button (1-Fig. 3.7); Wait until the compressor has stopped (approx. 30 seconds); Press emergency stop button (S3-Fig. 3.6) and switch off the voltage

Close air outlet valve (1-Figs. 3.4/3.6) and depressurize by opening plug (5-Fig. 3.3) one turn and by opening valve (1-Fig. 3.2) (not provided on GA Pack)

The air outlet valve (1-Figs. 3.4/3.6) can be locked during maintenance or repair as follows: - Close the valve - Remove the bolt fixing the handle - Lift the handle and turn it until the slot of the handle fits over the blocking edge on the valve body - Lock the handle using the special bolt and wrench delivered loose with the compressor

Sign off on the oil separator replacement

Apply all relevant safety precautions, including those mentioned in this book.

Press stop button and wait until the compressor has stopped

Press emergency stop button and switch off the voltage

Close air outlet valve and depressurize by opening plug one turn and by opening valve

Lock the air outlet valve during maintenance or repair

Check coolers and condenser of dryer; clean if necessary

Remove any dirt from the coolers with a fibre brush. Never use a wire brush or metal objects.

Clean by air jet in reverse direction of normal flow while covering all compressor parts under the coolers.

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

Apply all relevant safety precautions, including those mentioned in this book.

Press stop button and wait until the compressor has stopped?

Press emergency stop button and switch off the voltage?

Close air outlet valve and depressurize by opening plug one turn and by opening valve?

Lock the air outlet valve during maintenance or repair?

Check for possible air leakage?

Apply all relevant safety precautions, including those mentioned in this book.

Press stop button and wait until the compressor has stopped?

Press emergency stop button and switch off the voltage?

Close air outlet valve and depressurize by opening plug one turn and by opening valve?

Lock the air outlet valve during maintenance or repair?

Run the compressor until warm, stop it and close the outlet valve?

Depressurize the oil system by opening oil filler plug one turn to permit any pressure to escape?

Drain the oil by unscrewing plug, collect the oil in a collector and deliver it to the local oil collection service?

Remove oil filter and clean the filter seat on the manifold?

Check that condensate is discharged during loading

Check air filter service indicator