
4.MAINTENANCE B-70315EN/02
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4.3.2 Exhaust Pump Oil
(1) Check method
Watch the oil gauge, and check that the oil level is between
graduations L and H. Also check whether the oil is dark. If the
oil level is below L, add oil to the turbo blower or replace the oil
in it. If the oil level is above H, drain until the oil level becomes
below H.
The exhaust of the turbo blower contains oil mist. The exhaust
pump will capture oil mist, and the amount of exhaust pump oil
increases with time. When the oil has increased too much, the
filter gets immersed in the oil, possibly causing white mist to
come out from the pump, or oil to leak. Furthermore, the exhaust
capacity may get lowered, or the pump may be damaged.
(2) Replacement method
1) Stop the oscillator, and turn off the power.
2) Remove the maintenance panel.
3) Remove the oil inlet plug. There is an O-ring on it. Be
careful not to damage it. A missing or damaged O-ring can
lower the exhaust capacity of the pump.
4) Insert the drain tube into a drain oil pot.
5) Fully open the drain cock.
6) After the oil has been drained up, close the cock.
7) Supply 1.8 liters of new oil through the oil inlet, while
watching the oil gauge.
8) Attach the oil inlet plug.
9) Put the maintenance panel back in place, and turn on the
power.