Name: Ranjan A B, Student ID: 768, Rank: CIE – Chief Engineers
A/E crank shaft got damaged due to clogging and blocking lub oil spaces with cotton rags, led to lub oil failure and damaged the crank shaft
Corrective Action/ Lessons to be learnt:
Need to take almost care while carry out routine jobs like filter cleaning etc.
Auxiliary engine which was running tripped off without any alarm. On investigation found, one of the unit’s main bearing journal lub oil hole was clogged with cotton rag piece, leading to failure of Lub oil. One unit connecting rod bottom got seized to crankshaft and gudgeon pin got welded to connecting rod. Crank shaft was heavily damaged.