7.3 Oil and oil filter 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.
Procedure
Oil system components
1. Run the compressor until warm. Stop the compressor. Close the air outlet valve and switch off the voltage.
Depressurise the compressor by opening manual drain valve(s) (Dm, Dm1). Wait a few minutes and
depressurise the air receiver/oil tank (OT) by unscrewing oil filler plug (FC) just one turn to permit any
pressure in the system to escape.
2. Drain the oil by opening valve (OD).
3. Collect the oil and deliver it to the local collection service. Refit and tighten the drain and vent plugs after
draining.
4. Remove the oil filter (OF). Clean the seat on the manifold. Oil the gasket of the new filter and screw it
into place. Tighten firmly by hand.
5. Remove filler plug (FC).
Fill the air receiver/oil tank (OT) with oil until the level reaches the middle of sight-glass (Gl).
Take care that no dirt drops into the system. Refit and tighten filler plug (FC).
6. Run the compressor loaded for a few minutes. Stop the compressor and wait a few minutes to allow the
oil to settle.
Instruction book
2920 7104 10 79
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