
4.MAINTENANCE B-70254EN/01
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(2) Replacement method
1 Stop the oscillator, and turn off the power.
2 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.
3 Insert the drain tube into a drain oil vessel then open the
drain cock.
4 After the oil has been drained up, close the cock.
5 Supply 1.8 liters of new oil through the oil inlet, while
watching the oil gauge.
6 Attach the oil inlet plug.
4.3.3 Replacing the Exhaust Pump Filter
When the operation time reaches 3000 hours or the exhaust capacity
gets lowered, replace the filter. A clogged filter may cause a whitish
smoke of oil mist to come out of the pump or lower the exhaust
capacity.
1 Stop the oscillator, and turn off the power.
2 Remove the black screw from the exhaust pump unit, then
remove the filter cover and O-ring.
3 Remove the spring and washer.
4 Pull out the filter element.
5 Check the mounting orientation of a new filter element, then
insert the filter. A filter mounted improperly may cause oil mist
(whitish smoke) to come out of the exhaust pump gas outlet.
Therefore, check again that the filter is mounted properly.
Replacement work is now complete.