RA POWER SOLUTIONS PVT. LTD.

South City, Gurugram, Haryana

Due to the frequent breakdowns of the Peroni plant, the company experienced heavy financial losses and production downtime. RA Power Solutions deployed two senior engineers to the steel plant to inspect and audit the Peroni Pompe Italy.

After undersizing the crankpin to 1.5mm, the matching bearing was manufactured and supplied by RA Power Solutions. The Peroni Pompe, Italy, was assembled, and its performance has been observed to be satisfactory. 

We have been regularly providing our services in Italy, Canada, Australia, Bangladesh, Canada, Dubai, Greece, Haiti, Hong Kong, Indonesia, Kenya, Malaysia, Maldives, Kenya, Kuwait, Madagascar, Mexico, Nigeria, Oman, Philippines, Saint Lucia, Saudi Arabia, Singapore, Spain, Sint Maarten, Sri Lanka, Suriname, Thailand, Togo, United Kingdom, United States, Yemen, Zambia, etc.

Crankshaft grinding & repair services are offered by RA Power Solutions all over the world. We have experienced technicians to undertake crankshaft grinding and repair on board the vessel. RA Power Solutions is the only company that can execute the crankshaft grinding & crankshaft repair even while sailing the vessel.

Major accident took place in the case of Auxiliary Engine MAN B&W 6L 16/24 on board a vessel owned by a leading Malaysian shipping company. The photographs of the damaged engine block and crankshaft were shared with RA Power Solutions.

The vessel was boarded by our technicians in Pasir Gudang. Following are the main details of the engine:

Inspection of Crankshaft:

1. All the crankpins were inspected dimensionally, and line marks and ovality were observed on all the crankpins. The standard diameter of crankpin was 130.00 MM.
2. All other parameters, like hardness, and crack detection by MPI, were found within limits.
3. On visual inspection of the radius fillet of two (2) crankpins was found damaged.

Inspection of Engine Block

1. The Engine Block window seating area of Unit number #04 (Port Side) was found badly damaged.
2. The Cam Case was also found broken.

Few Photographs of damaged Cam Case are given below:

Action Taken by RA Power Solutions to Repair of Crankshaft and Engine Block of MAN B&W 6L 16/24

i. Considering the damage, all six (6) crankpins diameter was reduced from 130.00 Mm to 129.50 MM, maintaining the tolerance of 0.02 MM.

A copy of the report indicating the final dimensions is pasted below:

iii) The Undersize bearings were also supplied by RA Power Solutions.

iv) The Engine was commissioned in the presence of our technicians and performance was found satisfactory.

In place Machining of damaged intermediate shaft journal was executed successfully by RA Power Solutions at Kochi Port, India.

Details of Intermediate Shaft Repair

• Team of three technicians boarded the Vessel with the onsite grinding and polishing equipment.
• On inspection the Intermediate Propeller Shaft bearing sitting diameter was found damaged with surface cracks, higher hardness, and ovality of 0.38MM.
• The bearing was found burnt and white metal removed, this bearing was immediately packed and sent to our factory for White Metal Rebabbitting to save the time.
• Machining, Grinding and Polishing of Intermediate Shaft Journal was undertaken, and diameter was reduced by 1.00MM, the final diameter of Intermediate Shaft Journal was maintained as 504.00 MM with the tolerance of only 0.02 MM and surface finish of less than 15 Ra value.
• The bearing after rebabbitting was machined, in the RA Power Solutions factory maintaining the bore size of 504.50 MM, as per the manual.
• Bearing was assembled, Blue matching was done and after checking of Oil-gap and all other major parameters the trials were taken and performance was found satisfactory.

RA Power Solutions was intimated by a shipping company based in Dubai regarding problem faced by them in the  Hardness Test of Crank Pin MAN B&W 5L16/24 Engine     Crankshaft MAN B&W 5L16/24 Engine Under Repair