Question 138General Subjects - 1st Asst/Chief

The correct answer is D) Draining the bottom of the bearing lube oil sump. The bearing with an oiling ring uses the oil sump as the static oil feed source. Over time, wear particles, grit, and moisture can accumulate in the oil sump. To service this type of bearing, the proper procedure is to drain the oil from the bottom of the sump to remove these contaminants. The other options are incorrect because they do not directly address the issue of removing wear particles, grit, and moisture from the bearing's oil supply. Draining the strainer housing (A) or rotating the lube oil strainer handle (B) would not effectively clean the oil in the sump. Changing the filter element (C) would not address contaminants that have already accumulated in the sump.