7.5 Oil, oil filter and oil separator change
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.
If the compressor is equipped with an Energy Recovery unit, also consult Maintenance
for Energy Recovery Systems
Procedure
1. • 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.
2. Remove the vent plug (VP) of the oil cooler.
Vent plug, oil cooler Workplace
Instruction book
2920 7109 23 107
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