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Generator lube oil sump level increases, what are the checks you would carry out?

a. Check that the generator lube oil systems valves are correctly positioned and that the 
sump filling valve is holding 
b. Ask the personnel for if they have carried out any transfers just before, related to the 
sump oil of the generator 
c. Check the purifier for correct operation and that no water is being discharged with the 
purified oil 
d. Change over the generator concerned, isolate it and check the sump for any 
contamination like water. Basing on the findings further inspections can be carried 
out, like checking the cylinder liner jacket cooling water sealing O-ring etc.,

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