Atlas Copco G 15L, Instruction Book

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Step Action
1 Run the compressor until warm. Stop the compressor, close the air outlet valve and
switch off the voltage. See
Stopping.
2 Depressurize the air receiver by opening drain valve (8).
3 Depressurize the compressor by unscrewing filler plug (2) one turn to permit any
pressure in the system to escape. Remove the plug after the system is depressurized.
4 Drain the oil by opening drain valve (6). Close the valve and refit the plug after draining.
Deliver the drained oil to the local oil collection service.
5 Remove oil filter (7) and, if it needs to be replaced, remove the oil separator (1). Clean
the seats on the manifold.
6 Oil the gaskets of the new filter and separator and screw them into place. Tighten firmly
by hand.
7 Fill oil separator/tank (3) with oil until the level reaches the middle of sight-glass (4).
Ensure no dirt gets into the system.
8 Refit and tighten filler plug (2).
9 Close drain valve (8) of the air receiver.
10 Run the compressor for a few minutes.
11 Stop the compressor and wait a few minutes to allow the oil to settle.
12 If the oil level is too low, depressurize the system by unscrewing filler plug (2) one turn
to permit any pressure in the system to escape. Depressurize the air receiver by
opening drain valve (8).
13 Add oil as necessary. The sight-glass should be 3/4 full. Retighten plug (2) and close
drain valve (8) of the air receiver.
Checking the oil level
Step Action
1 Run the compressor until warm. Stop the compressor, close the air outlet valve and
switch off the voltage. See
Stopping .
2 Depressurize the air receiver by opening drain valve (8).
3 Open the front panel.
4 Depressurize the compressor by unscrewing filler plug (2) one turn to permit any
pressure in the system to escape. Remove the plug after the system is depressurized.
5 Wait 5 minutes for the foam in the oil collector to disappear.
Instruction book
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