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Marine Diesel generator High vibration in Axial direction at Engine Free End

Greetings team members,

Diesel Generators onboard ships about 600-1000 kw rating, YANMAR make, Axial vibration around crankshaft. The present video vibration is too high and instrument showing Over.

The other video on crankshaft top but slightly away from the crankshaft showing satisfactory.

There are many other taken bottom of crankshaft, left hand side and right hand side found vibrations are lower than top of the shaft.

Appreciate your feedback and I will add the spectrum in later stages as per your request.




Videos (2)
DG1 Crankshaft top 2
DG1 Crankshaft top away from Shaft
Original Post