Diesel power plant based in northern India having 10 nos. of 12.3 MW Wartsila diesel generating sets reported severe causality involving one of their Wartsila generator.
RA Power Solutions team of technicians rushed to the power plant with the measuring instruments and onsite crankshaft grinding equipment to access the cause of breakdown.
On undertaking the detailed inspection of crankshaft including dimensional check, hardness test, MPI for crack and deflection, it was observed that one of the crankpin journal was damaged due to the failure of big end bearing.
Following were the main observations:
I) Taper and ovality in crankpin was observed as 0.70 mm.
II) Due to failure of bearing, deep line marks were visible.
III) Hardness and MPI test was done, no cracks were observed.
RA Power Solutions used latest design of onsite crankshaft grinding machine having almost no vibrations. The crankpin was undersized by 1.5 mm maintaining the tolerance within 10 microns. Our technicians took only 18 hours to complete the Crankshaft repair from the time of start of preliminary inspection, grinding and final inspection. The repair of crankpin in such a short time was possible due to the latest technology onsite crankshaft grinding machine used and experience of our technicians. The engine was assembled and is performing satisfactory.
RA Power Solutions is having four decades of experience in working on crankshaft of high capacity main and auxiliary engines. The technicians are trained in the factory to execute the repair of crankshaft strictly as per the manufacturer’s specifications and tolerances.
We are the leaders in this field and our prices are most competitive.
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