Atlas Copco GX 2 EP, Instruction Book

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5.3 Oil specifications
Never mix oils 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.
It is strongly recommended to use Atlas Copco lubricants. See section Preventive maintenance schedule for
recommended oil change intervals.
For part numbers, consult the Spare Parts List.
Roto-Inject Fluid
Atlas Copco's Roto-Inject Fluid is a specially developed lubricant for use in single stage oil-injected screw
compressors. Its specific composition keeps the compressor in excellent condition. Roto-Inject Fluid can be
used for compressors operating at ambient temperatures between 0 ˚C (32 ˚F) and 40 ˚C (104 ˚F). If the
compressor is regularly operating in ambient temperatures between 40 °C and 46 °C (115 °F), oil lifetime is
reduced significantly. In such case it is recommended to use Roto-Xtend Duty Fluid.
Roto-Xtend Duty Fluid
Atlas Copco's Roto-Xtend Duty Fluid is a high quality synthetic lubricant for oil-injected screw compressors
which keeps the compressor in excellent condition. Because of its excellent oxidation stability, Roto-Xtend
Duty Fluid can be used for compressors operating at ambient temperatures between 0 ˚C (32 ˚F) and 46 ˚C
(115 ˚F).
Roto-Foodgrade Fluid
Special oil, delivered as an option.
Atlas Copco's Roto-Foodgrade Fluid is a unique high quality synthetic lubricant, specially created for oil-
injected screw compressors providing air for the food industry. This lubricant keeps the compressor in
excellent condition. Roto-Foodgrade Fluid can be used for compressors operating at ambient temperatures
between 0 ˚C (32 ˚F) and 40 ˚C (104 ˚F).
5.4 Oil, filter and separator change
Important
Never mix oils of different brands or types. A label, indicating the type of oil filled ex-factory,
is stuck on the air receiver/oil tank.
Always drain the compressor oil at all drain points. Used oil left in the compressor can
shorten the lifetime of the new oil.
If the compressor is exposed to external pollutants, is being used at high temperatures (oil
temperature above 90˚C / 194˚F) or is being used under severe conditions, it is advisable
to change the oil more frequently. Consult Atlas Copco.
Instruction book
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