Atlas Copco XAS 88 G Kd APP - Page 43

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COMPRESSOR OIL LEVEL CHECK DAILY CHECK
Check the compressor oil level daily, after running
the compressor.
1. Stop the compressor with closed air outlet valve
and let it rest for a short period, to allow the
system to relief pressure inside the vessel and
settle down the oil.
2. Check the oil level by opening an oil filler plug
(2). The oil level must always be above the bend
of the elbow. If the oil level is below the bend of
the elbow, fill up the oil via the same bend.
3. Reinstall and tighten the filler plug (2).
CHECK AFTER A LONGER PERIOD
WITHOUT RUNNING THE COMPRESSOR
1. Check the oil level by opening an oil filler plug
(2). The oil level must always be above the bend
of the elbow.
2. If the oil level is too low, remove the oil filler plug
(2) and check if there is still oil in the vessel.
 No oil in the vessel: Top up the compressor
with oil until the oil level is at the upper level
as indicated on the label and follow the steps
as described above in Daily check.
 Oil in the vessel: Start up the unit to warm up
and give time for the thermostatic valve to
open. Stop the compressor with closed outlet
valve (4) and follow the steps described above
in Daily check.
The compressor oil level needs to be
checked with the compressor in an
horizontal position after running the
compressor to warm up so that the
thermostatic valve is open.
Before removing the oil filler plug,
ensure that the pressure is released by
opening the air outlet valve (4) and
checking the vessel pressure on the
controller or the pressure gauge.
At temperatures below 0°C, you have to
load the compressor to be sure that the
compressor thermostat will be open.