Atlas Copco Oil-Injected Rotary Screw Compressor GA26FF

Replace DD and PD filters or whenever the pressure indicator points red (if provided)

Minimum wall thickness as specified in the instruction book must be respected

Local regulations remain applicable if they are more strict

Sign off on the compressor maintenance

WARNING! Always 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.

If the compressor is equipped with an Energy Recovery unit, also drain the oil in the heat exchanger.

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

Depressurize the compressor by opening the manual drain valve(s). Wait a few minutes and depressurize the air receiver/oil tank by unscrewing oil filler plug (FC) just one turn to permit any pressure in the system to escape.

Open the filler plug (FC) and drain the oil by opening the valve at the bottom of the oil tank (OT).

Also remove the drain plug near the element outlet. Close the drain valve and fit the plugs after draining.

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

Replace the oil and the oil filter if Atlas Copco Roto-Xtend Duty Fluid is used

Replace the non return valve of the scavenge line

Replace the minimum pressure valve and the thermostatic valve

Replace the electronic drain (FF units)

CAUTION! Never use a high pressure water jet to clean the compressor

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

Cover all parts under the coolers

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

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)

Is it necessary to wash the coolers with a cleaning agent?

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

Sign off on the coolers cleaning