A diesel generator set on your offshore supply boat has a simplex lube oil strainer of the type shown in the illustration, situated on the discharge side of the lube oil pump. At a specified engine rpm and lube oil temperature, you notice that the pressure drop becomes unacceptably high. When you rotate the cleaning handle you notice that it is extremely difficult to rotate. What should be done? Illustration MO-0057

Question

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After stopping the engine, the strainer element should be withdrawn and soaked in solvent to break up the heavy deposits on the disk stack (C).

Answer

The cleaning handle (A) should be forced to rotate, even if it requires an extender handle to produce greater rotating torque.

Answer

After stopping the engine, the drain plug (B) should be removed to drain the accumulated sludge from the strainer sump.

Answer

No special consideration need be taken as long as the cleaning handle (A) rotates, even if it rotates with great difficulty.

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