Instruction book
909935AIB
75
Procedure
Step
Action
1
Run the compressor until warm.
Stop the compressor.
Close the air outlet valve.
Switch off the voltage.
Wait a few minutes.
Depressurize by unscrewing plug (4) only one turn to permit any pressure in the system
to escape.
2
Loosen vent plugs (7) on top of the oil coolers.
3
Drain the oil by removing the drain plugs.
Plugs are fitted on the:
• Air receiver / Oil separator (5) with drain point (6)
• Oil stop valve (1)
• Check valve (2)
• Gearbox (3)
• Oil coolers (9) of air-cooled compressors
• Oil filter housing (8)
Tighten the plugs after draining.
4
Remove filler plug (4).
Fill the air receiver / oil separator with oil until the level reaches the filler opening.
Refit and tighten plug (4).
Tighten the vent plug (7) of the oil cooler.
5
For air-cooled units:
• Remove the plug on the air inlet pipe.
• Pour 10 liter of oil into the compressor stage.
• Reinstall the plug on the inlet pipe.
6
Run the compressor loaded for a few minutes to allow the oil cooler by-pass valve to
open.
Stop the compressor.
Wait a few minutes.
7
Depressurize the system by unscrewing plug (4) only one turn to permit any pressure in
the system to escape.
Remove the plug.
Fill the air receiver / oil separator with oil until the level reaches the filler opening.
Tighten the filler plug (4).
8
After carrying out all service actions in the relevant “Service Plan”, reset the service
warning.
Refer to the
Service menu
section.
6.5 Oil filter change
Warning
Stop the compressor and switch off the voltage. The operator must apply all relevant