Compressor Oil Level Check - Atlas Copco XATS 138 PE Stage V APP Instruction Manual

COMPRESSOR OIL LEVEL CHECK

DAILY CHECK
Check the compressor oil level daily, after running
the compressor.
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.
1. Stop the compressor with closed air outlet valve
(2) 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 via the oil level indicator (3).
The pointer must register in the green area. If the
oil level is too low, add oil via the oil filler plug
(1).
Before removing the oil filler plug,
ensure that the pressure is released by
opening the air outlet valve and checking
the vessel pressure on the controller or
the pressure gauge.
3. Top up with oil until the pointer of the oil level
gauge is in the upper part of the green area.
4. Reinstall and tighten the filler plug.
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CHECK AFTER A LONGER PERIOD
WITHOUT RUNNING THE COMPRESSOR
1. Check the oil level via the oil level indicator (3).
The pointer must register in the green area.
2. If the oil level is too low, remove the oil filler plug
(1) and check if there is still oil in the vessel.
 No oil in the vessel: Top up the compressor
with oil until the pointer of the oil level gauge
is in the upper part of the green area 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 and follow the steps described above in
Daily check.
At temperatures below 0°C, you have to
load the compressor to be sure that the
compressor thermostat will be open.