Change Compressor Oil ※1 - Hokuetsu AIRMAN PDS185S-6EZ1 Instruction Manual

5. Periodic Inspection/Maintenance
5.5.6 Change compressor oil
At 300 hours for the first change and at every 500 hours thereafter

For prevention of fire caused due to deteriorated oil separator, in principle change of compressor oil
is to be performed in accordance with the schedule mentioned in the regular maintenance table.
However, it is heavily influenced by operation conditions and environmental conditions. If it has
been found more dirty and corrupted, it should be changed.

If machine is continuously operated in such bad conditions, it could damage bearings and degraded
oil sticks oil separator to cause accumulated oxidation heat of reaction to lead oil separator fire.
For this reason, regular maintenance work should be done surely and perfectly.

Before replacing the compressor oil, stop the machine and wait for a sufficient period of time
(about two or three minutes) to allow the oil to settle in the machine.
E
D
C
CLOSE OPEN
A
Drain container

Mixture of different brands compressor oil could cause an increase of viscosity and make compressor
oil sticky. In the worst case, it could cause sticking trouble of compressor air-end "Compressor air-end
will not turn". Also repairing of such air-end needs expensive cost. Therefore, be sure to avoid mixing
different brands oil. In case compressor oil brand in use has to be unavoidably changed, it is absolutely
necessary to completely clean up the interior of compressor air-end. In such a case, contact your
nearest dealer.

Follow the designated regulations to dispose of compressor oil.
A220295
Fuel Limit
Red
lines
B
A130976-1
<Procedures>
1. After the machine has stopped and pressure inside
the separator receiver tank has been completely
released as much time passed, remove the oil filler
cap [A] and open the drain valve [B] to drain the
residual oil.
2. Remove the drain plug [D] of the oil cooler and open
the drain valve [E] to drain the compressor oil
accumulated in the cooler.
3. After draining compressor oil, fully close the drain
valve [B] and [E], reinsert the drain plugs [D].
4. Fill the tank with new compressor oil up to the
height indicated by the dotted line (Fuel Limit).
Then, close filler cap [A]. Inspect O-ring [F] of filler
cap [A]. and replace it with a new one if any
hardening or damage is found.
(For part number, See 5.4)
5. After starting operation, check and confirm that oil
level is within red lines of oil revel gauge.
Quantity of oil between
the red lines
Quantity of change oil
5-10
Approx. 0.45gal. (1.7L)
Approx. 3.96gal. (15L)