Step Description
- Depressurise the system by unscrewing filler plug (FC) just one turn to permit any pressure in the
system to escape. Remove the plug.
Fill the air receiver with oil until the level reaches the filler neck.
Tighten the filler plug.
- Reset the service warning after carrying out all service actions in the relevant Service Plan:
For compressors with Elektronikon® controller, see section Calling up/resetting the service timer.
For compressors with Elektronikon® Graphic controller, see section Service menu.
9.6 Coolers
General
Keep the coolers clean to maintain their efficiency.
Instructions for air-cooled compressors
• Stop the compressor, close the air outlet valve and switch off the voltage.
• Cover all parts under the coolers.
• Remove the service plates (1) at the fan compartment.
• Remove any dirt from the coolers with a fibre brush. Brush in the direction of the cooling fins.
Also remove any dirt from the fan with a fibre brush.
• 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).
• If it is necessary to wash the coolers with a cleaning agent, consult Atlas Copco.
• Remove the cover used during cleaning.
• Mount the service plates (1) at the fan compartment.
Instructions for compressors with dryer.
• Stop the compressor, close the air outlet valve and switch off the voltage.
• Remove any dirt on the condenser inlet with a vacuum cleaner.
• 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).
• Clean the condenser area with a vacuum cleaner.
Instructions for water-cooled compressors
Consult Atlas Copco.
Instruction book
2920 7109 60 179
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