Atlas Copco Oil-Injected Rotary Screw Compressor GA11vsd+FF

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

Cover all parts under the coolers

Remove the service plate at the fan compartment

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

Remove dirt from the fan with a fibre brush

Clean with an air jet in the reverse direction to normal flow

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

Mount the service plate (1) at the fan compartment

CAUTION! After maintenance on the fan and on the coolers: Remove the loose parts that are used as cover

WARNING! The operator must apply all relevant Safety precautions

Always drain the compressor oil at all drain points. Used oil left in the compressor can contaminate the oil system and can shorten the lifetime of the new oil

Never mix lubricants of different brands or types as they may not be compatible and the oil mix will have inferior properties. A label, indicating the type of oil filled ex-factory, is stuck on the air receiver/oil tank

Run the compressor until warm and stop the compressor

Close the air outlet valve and switch off the voltage

Wait 3 minutes for the compressor to depressurise the vessel

Open the condensate drain valve to depressurise the cooler. (see condensate system) and close again

Unscrew the oil filler plug (FC) just one turn to permit any remaining pressure in the system to escape

Cover the duct of the heat sink on the electric cabinet

Warning: This procedure requires trained personnel with PPE!

Is the compressor operating in ambient temperatures above 40 °C (104 °F)?

If YES, the oil lifetime is reduced and the exchange interval is 6000 Hours / 2 Year.

If NO, the exchange interval is 8000 Hours / 2 Year.

Enter the current operating hours of the compressor

Enter the date of the last oil change

Did the compressor pass the post-maintenance test?

Sign off on the Roto-Xtend Duty Fluid Replacement

Warning: This procedure requires trained personnel with PPE!

Enter the element outlet temperature

Select the appropriate exchange interval based on the temperatures

Was the Roto-Inject Fluid successfully replaced?

Sign off on the Roto-Inject Fluid replacement

Check condition of the air intake hose between air filter and compressor element

Check operation of cooling fans of converter

Check blow-off solenoid valve after stopping and pressing the emergency stop button