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NEWS
Delivery MAN B&W 10K98MC-C Cylinder Cover in 30 Hours
Time of issue：
2023-12-10
DMTech got an order of MAN B&W 10K98MC-C cylinder cover, which has 3 fuel injector pockets. The fuel valve seating face in the pocket reaches the maximum limit due to long-term running and must be refurbished to original size. Even though there is only one spare cylinder head on board, , shipowner still confirmed to repair it in Chinese ports. Because there are multiple ports to call in China in this voyage. After long time discussion with the agent, the port and the service, the owner finally decided to land it in Shekou container terminal and then transport to the reconditioning workshop of DMTech Nantong by no-stop transportation. After repair in Nantong, it will be transferred to Shanghai Yangshan Port and delivered on board.
The outer diameter of cylinder cover is 1800mm and weight of 7 tons. Safety factor need to be detailed considered, when disembarking from the ship , for example long-distance transportation and workshop repairs by overturning. The another crucial factor is delivery time . The initial quotation period was 4-5 days, but owner requested DMTech must complete the item in 48 hours , considering there are two shipments between 2ports and the workshop. It is a race against time and must be successful.
DMTech took the baton after thorough planning and preparation.After a day and a night of long-distance running, the main engine cylinder head arrived at DMTech Nantong workshop in the late night of November 25, 2023. The company arranged for unloading and conducted a preliminary inspection. The next day, DMTech organized personnel to dismantle the attachments. Subsequently, the further inspection were carried on and the reconditioning scope was quickly clarified. Due to sufficient preparation, all the required fixtures were in place and the workers quickly started working.
However, there was also an unexpected situation during the process, as the sleeve of fuel injector must be removed for boring the hole.But due to interference assembly, the sleeve could not be easily removed. After communication with the shipowner, it can only be dismantled by destroy. But there is an uncertainty if the spare part is available on board. It means the cylinder cover would not be used properly if the sleeve is not available on ship. So DMTech organized technicians to discuss and decided to fabricate a new sleeve.
On the third day, 8 o’clock, the drilling was completed and all data met the requirements of the drawings. Then shrink assembled the new fabricated fuel valve sleeve. On 9 o’clock , DMTech completed the emergency repair and the owner was informed for dispatch. The moment, DMTech succeeded it in 30 hours.
Everyone of DMTech feels reluctant to apart from the cylinder cover, when the huge guy was slowly seating onto the truck.
You come in a hurry, you go in a hurry, we love in a hurry.
Anyway we are sure the reunite in the future years.
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Diesel Maritech Nantong Co.,Ltd
Add:No.129, Xinsheng Road, Nantong
Contact：Ron Cheng Ligang Yu
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