Product Manual

8. Run the compressor loaded for a few minutes. 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 (Dm) 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.

10. • Fill the air receiver (AR) with oil until the level reaches the filler neck.

• Refit and tighten filler plug (FC).

When the oil level is too low, go back to step 7.

6.6 Coolers

General

Keep the coolers clean to maintain their efficiency.

Procedure

• Stop the compressor, close the air outlet valve and switch off the voltage.

• Cover all parts under the coolers.

• Remove the service plate (1) at the fan compartment.

• Remove dirt from the coolers with a fibre brush. Brush in the direction of the cooling fins.

Remove dirt from the fan with a fibre brush.

•

Clean with an air jet in the reverse direction to normal flow.

• If it is necessary to wash the coolers with a cleaning agent, consult Atlas Copco.

After maintenance on the fan and on the coolers:

Remove the loose parts that are used as cover.

• Mount the service plate (1) at the fan compartment.

Instruction book

96 2920 7109 21