RA Power Solutions was approached by a company advising about the damage to a Gearbox base manufactured out of cast iron. This Gearbox is used for the main engine to Propeller shaft. The base was broken into pieces.
The details of damage observations are mentioned below.
| Sr. No. | Description | |
| 1. | Repair of Cracked Gear Box for Main Engine to Propeller shaft | |
| 2. | Length of the cracks Inboard leg | 160 mm |
| 3. | Length of the cracks Outboard leg | 148 mm |
| 4. | Thickness of the casting cracked | 55 mm |
| 5. | Engine Make & Model | Yanmar Model no. YXHG-2500LM |
| 6. | Place of Execution of Job | Kandla Port Gujarat |
The thickness of the casting was observed as 55 mm, which is more than 2 inch.
RA Power Solutions undertakes the repair of cracked or damaged cast iron, Aluminum and bronze heavy components by metal stitching or metal locking process which is simple and is a proven process of repair of damage and cracked casting.
Repair of Crack Gearbox by RA Power Solutions technicians:
- RA Power Solutions deputed two technicians to undertake the inspection and metal stitching of the Gearbox.
- After the removal of paint including the Red oxide, the cracked area was subject to Dye penetrant inspection and also MPI by high-intensity magnaflux torch to check the location, length and intensity of the cracks.
- As mentioned above, cracks measuring 160 mm and 148 mm in length were observed.
- The thickness of casting was 55 mm, which made the repair by metal locking & metal stitching process more difficult.
- Our technicians executed the damage, and Gearbox repair successfully by using the special master locks, locks, and keys.
Advantages of Crack Repair by Metal Lock process:
- The main advantage of crack repair by metal locking & metal stitching is that in the majority of cases, the crack repair can be executed onsite without dismantling the equipment. This not only saves time & money but also saves from the botheration of transportation of heavy components to the workshop.
- It is a cold process and does not require any major machining. It is very important in case of repair of engine housing where the requirement of alignment is within 0.03 mm.
- No heat is generated, hence no distortion.
- With the introduction of the latest technology, process, and experience of our technicians, we can successfully repair the engine's major components like cylinder liner, cylinder head, turbocharger casing, etc.
We have been regularly executing the metal stitching/ metal locking & repair services in Argentina, Bahamas, Barbados, Bermuda, Bolivia, Brazil, Canada, Chile, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Guatemala, Guyana, Haiti, Honduras, Jamaica, Mexico, Nicaragua, etc.
This blog is written by Mr. Raj Shahani (Managing Director of RA Power Solutions India Pvt. Ltd.).
Mr. Shahani is a highly experienced business leader with 44 years of rich experience in the field of Power, Heavy and Shipping industries. He is a Technical Adviser to many shipping and heavy industries across the globe.
Mr. Shahani is one of the most enthusiastic professional, and he has all the brilliance of an exemplary leader. Mr. Shahani is an extremely effective coach and mentor of teams and is adept at providing leadership in a global, cross-cultural environment.
For more information on metal locking and stitching techniques, and crack repair techniques contact us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.