20. Q. How should the lubricator be filled?

A. First close all valves connected with the lubricator, open drain plug

and remove filling plug, allowing water to escape until oil appears

with it. Drain plug should then be closed. Fill the oil tank in the

usual way, being careful not to overflow it; then replace filling plug.

If the supply of oil is insufficient to fill the lubricator, water can

be used to finish it, as the lubricator will begin feeding sooner when

filled full.