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Submission: On October 18 via manual from IN — Scanned from DE
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Engine Repair and Services you can trust * * * * ▼ Email Support info@rapowersolutions.com Call Support +91-9582647131 Search * Home * About us * Crankshaft Grinding Repair * Crankshaft Grinding and Journal Machining * Onsite Repair and Maintenance * Onsite Inspection of Crankshaft * Quality Assurance After Repairs * Crankshaft Repair and Crankshaft Machining * Gallery * Blogs * Certification * CONTACT US BLOG POST 1. Home 2. Our Blog 3. Crankpin Repair of Yanmar S185L-ST Crankshaft | On Board Grinding of Crankshaft of Yanmar S185L-ST Engine CRANKPIN REPAIR OF YANMAR S185L-ST CRANKSHAFT | ON BOARD GRINDING OF CRANKSHAFT OF YANMAR S185L-ST ENGINE A LEADING SHIPPING COMPANY BASED IN SAUDI ARABIA REPORTED A SERIOUS ACCIDENT OF THEIR AUXILIARY ENGINE NO. 2 OF YANMAR S185L-ST USED AS GENERATOR. Team consisting of two technicians along with necessary calibrated instruments and onsite crankshaft grinding machine boarded the vessel in order to access the damage to the engine and undertake necessary repairs. MAJOR YANMAR S185L-ST ENGINE DETAILS ARE AS FOLLOWING:- S. NO Crankshaft Details 1 Engine Make Yanmar 2 Engine Model S185L-ST Engine 3 Crankpin Diameter Standard 140 mm 4 Crankpin Bearing Width 62 mm 5 Name of Vessel MV THE ABLA ON INSPECTION OF THE CRANKSHAFT, FOLLOWING WERE THE MAIN OBSERVATIONS:- * On the visual inspection of crankpin no. 1 having a standard diameter of 140 mm and bearing width of 62 mm , it was observed that big end bearing failed and bearing material got embedded on the crankpin no.1 journal surface. * The crank pin journal surface had multiple bearing line marks, rough and was severely scored. * The radius fillet of both the sides was damaged losing its original profile. * Considering this to be a serious accident, all the connecting rods were disassembled and crank pins were subject to thorough inspection by our technicians. * No deviations were observed in other crankpins on dimensional inspection. * The hardness of crankpin no.1 was checked after removing the bearing from the crankpin journal which got embedded due to seizure of the bearing and observed within limit. * The crack detection test was done by high intensity magna flux torch and MPI equipment. * No abnormality or cracks were observed. * This was a big relief to our technicians as considering the serious nature of the accident, surface cracks in crank pin no. 1 were expected. * Deflection of the crankshaft was taken and was observed within limits. FOLLOWING ARE THE READINGS OBSERVED:- The crankpin no.1 was subject to dimensional inspection and following readings were observed:- Crankpin no. 1, Minimum diameter observed before repair - 139.50 mm Crankpin no. 1, Maximum diameter observed before repair - 139.88 mm Total ovality observed - 0.50 mm, considering the standard diameter of 140 mm. REPAIRS UNDERTAKEN BY RA POWER SOLUTIONS FOR SUCCESSFUL OPERATION OF CRANKSHAFT OF YANMAR S185L-ST ENGINE:- * Initially the crank pin having a standard diameter of 140 mm and bearing width of only 62 mm was ground to 0.50 mm under size with a hope the scratches and deep line marks will be removed. * Since even after grinding 0.50 mm, the deep line marks were clearly visible, it was decided to under size the crank pin further by 0.5 mm. FINALLY THE CRANKPIN NO. 1 WAS GROUND TO 1 MM UNDER SIZE AND DIMENSIONS WERE MAINTAINED AS FOLLOWING AFTER GRINDING:- Minimum diameter observed after grinding - 138.98 mm Maximum diameter observed after grinding - 139.00 mm Maximum ovality observed - 0.02 mm The undersized bearing of 1 mm was supplied by RA Power Solutions from their stock and engine was put back into operation. MAIN FEATURES OF EXECUTING SUCCESSFUL CRANKPIN REPAIR OF YANMAR S185L-ST ENGINE:- * A company has experience of more than four decades in the field of crankshaft repair having experienced technicians trained in in-house training school. * Manufactures its own on site crankshaft grinding machine using it for the last 25 years. This facilitates us even to grind shafts in limited space available. * Only company in the world which can undertake the grinding of small diameter and main journal like in case of Yanmar S185L-ST having a diameter of 140 mm and bearing length of only 62 mm. This really needs a compact on site crankshaft grinding machine. * Only company in the world which can execute the grinding of crankshaft while the vessel is on move maintaining the tolerance of 0.01/0.02 mm with surface finish of less than 20 RA value. * Maintaining under size and special size of bearings in stock, hence no time is wasted to put back the engine into operation. * All technicians having Indian CDC can fly to any destination in the world in a short notice. * The on site crankshaft grinding machine is carried by our technicians as an accompanied baggage and no need of booking the machine in cargo and wasting the time in custom clearance etc. * Light-weight machine costing less in terms of air freight charges towards the transportation. * We are considered offering our services on lowest cost in the world. * For reduction in cost of the maintenance and to put back engines into operation , contact us. We have been executing the repairs in Laos, Lebanon, Malaysia, Maldives, Mongolia, Nepal, North Korea, Oman, Philippines, Qatar, Russia, Saudi Arabia, Singapore, South Korea, Sri Lanka, Syria, United Arab Emirates, Yemen 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 rich experience of more than 40 years in the field of Power, Heavy and Shipping industry. He is 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 about Crankpin Repair, contact us on raj.shahani@rapowersolutions.com or info@rapowersolutions.com or call us at +91-9582647131 or +919810012383 Visit our website: http://rapowersolutions.com/ or https://crankshaftgrindingrepair.com/ CRANKSHAFT GRINDING REPAIR * Low Cost Crankshaft Grinding and Polishing Now Possible * Avail Onsite Crankshaft Grinding Service from World Leading Company with Guarantee * Stop Paying Heavy Charges for Grinding and Polishing of Crankshafts * Crankshaft Repair Services by Experts on Lowest Prices | Crankshaft Reconditioning * Crankshaft Grinding Services by Worlds Leading Company * Crankshaft Journals Polishing | Crankpin And Main Journal Polishing * Crankshaft Failure | Crankshaft Journal Repair | Crankpin Journal Repair * Crankshaft Repair of MAN Diesel Engine having Small Diameter and Bearing Width * Onsite Repair of Crankshaft of YANMAR Diesel Engine 6N18AL-DV 450 kva * Grinding of Crankshaft | Repair of Crankshaft of Daihatsu 5DC-17 * Yanmar 6M220L-SN Crankshaft Grinding and Crankshaft Repair * Crankshaft Repair | Small Diameter and Bearing Width * Crankshaft Grinding | Crankshaft Polishing | Onboard Crankshaft Repair| Do it Yourself * Insitu Crankshaft Repair of MAN B&W | In Situ Crankshaft Grinding of MAN B&W Crankshaft * Crankshaft Repair of MAN 7L 23/30 H Engine on Board a Vessel * Crankshaft Polishing | Grinding of Crankshaft Repair| Grinding of Crankshaft Onsite * Onsite Machining of Crankshaft | Onsite Crankshaft Repair | Mobile Machining for Crankshaft | Rotor and Alternator Shaft Repair * MAN B&W STX 6L 23/30H Crankshaft Repair | Onsite MAN B&W Crankshaft Grinding * MAN 6L 16/24 Crankshaft Grinding On Site | Successful MAN Engine Crankshaft Repair - RA Power Solutions * Crankpin Repair of Yanmar S185L-ST Crankshaft | On Board Grinding of Crankshaft of Yanmar S185L-ST Engine * On Site Repair of Crankshaft of Yanmar M200AL-DT Engine * Repair Of Compressor Crankshaft | Grinding Of Compressor Shaft | Air Compressor Crankshaft Grinding | BPCL Compressor Crank Repair * Industrial Compressor | Turbo Compressor | Centrifugal Compressor | Axial Compressor | Screw Compressor | Crankshaft Repair On Site – RA Power Solutions * Motor Shaft Repair And Grinding | Electric Motor Shaft Repair– RA Power Solutions * Save Crankshaft from rejection contact the leaders with 41 years of Experience RA Power Solutions * Crankshaft Machining and Polishing | Insitu Cutting of Crankpin | RA Power Solutions * Insitu Compressor Crankshaft Grinding | Compressor Crankpin Grinding | Compressor Crankshaft Repair | RA Power Solutions * Compressor Crankshaft Machining | Compressor Crankshaft Grinding | Compressor Crankshaft Repair | RA Power Solutions * Leaders in Compressor Crankshaft Repair | Onsite Compressor Crankshaft Grinding | RA Power Solutions * Bergen Rolls Royce Crankshaft repair | Rolls Royce Engine Crankshaft Grinding | RA Power Solutions * Repair Of Damaged Crankshaft On Site / Crankshaft Grinding RA Power Solutions * Crankshaft Repair with Damaged Radius Fillet | Onsite Repair of Damaged Radius Fillet Crankpin | Radius Fillet Damaged Crankshaft Grinding * Crankshaft Repair * Crankshaft Inspection On site | Inspection of Marine Engine Crankshaft on vessel * Yanmar Diesel Generator Model no. 8N280L-EV Crankshaft Repair | Crankshaft grinding on vessel * Wartsila VASA 12V32 LN Crankshaft Repair | Wartsila Engine Crankshaft Grinding INSITU GRINDING OF CRANKSHAFT OF YANMAR S185L-ST CRANKSHAFT CRANKSHAFT REPAIR OF YANMAR S185L-ST CRANKSHAFT TECHNICIAN DOING CRANKPIN REPAIR OF YANMAR S185L-ST CRANKSHAFT * Bhavnagar Port * Budge Budge Port * Chennai Port * Coachin Port * Cuddalore Port * Dahej Port * Dharamtar Port * Ennore Port * Gopalpur Port * Haldia Port × × × × × × × × × × * Hazira Port * Kakinada Port * Kandla Port * Karwar Port * Kochi Port * Kolkata Port * Krishnapatnam Port * Magdalla Port * Mangalore Port * Mormugao Port × × × × × × × × × × * Mul-Dwarka Port * Mumbai Port * Mundra Port * Navlakhi Port * New Bedi Port * New Mangalore Port * Nhava Sheva Port * Okha Port * Paradip Port * Pipavav Port × × × × × × × × × × * Pondicherry Port * Porbandar Port * Ratnagiri Port * Redi Port * Revdanda Port * Sanghi Port * Sikka Port * Tuticorin Port * Vadinar Port * Visakhapatnam Port × × × × × × × × × × -------------------------------------------------------------------------------- RA Power Solutions provides the onsite crankshaft grinding repair services around the world for the last four decades. Company Catalogue * * * * QUICK LINKS * Crankshaft Grinding and Journal Machining * Onsite Repair and Maintenance * Onsite Inspection of Crankshaft * Quality Assurance After Repairs IMPORTANT LINKS * RA Power Solutions * Marine Engine Spares - New & Reconditioned * Rebabbitting of Bearings * Connecting Rods * Turbine Shaft Repair * Crankshaft Grinding Machine CONTACT INFO * 411, 4th Floor, Unitech Arcadia, South City II, Gurgaon,Haryana (India) * +91 - 124 – 437 8292 / +91 9582647131 * info@rapowersolutions.com © 2019 Crankshaft Grinding Repair. All rights reserved. ORIGINALTEXT Bessere Übersetzung vorschlagen --------------------------------------------------------------------------------