Royston completes engine overhaul for Caledonian towing tugs

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Marine engineering specialist Royston recently completed extensive inspection, overhaul and maintenance of the main and auxiliary engines and associated components, as well as the two azimuth propulsion units, on two tugs operated by Caledonian Towage in the estuary of Cromarty.

A special survey was carried out on the coastal and harbor towing vessels Strathdon and Strathdee. The scope of work included the complete overhaul and inspection of the main Niigata propulsion engines and Yanmar auxiliary and port generators, as well as the maintenance and repair of the fuel injection systems and Z-Peller propulsion units. .

As an authorized agent for Niigata and Yanmar, Royston was able to provide a highly efficient single source solution to meet the needs of these overhauls through a combination of specialized marine engineering teams on board and the ability to ” utilize its fully equipped engineering facilities for the rapid turnaround time of engine parts requiring workshop cleaning, repair and maintenance.

Royston used OEM-trained crews on each vessel while moored in Peterhead to carry out the wide range of dismantling, inspection and engine overhaul tasks involved. The range of work included the unit inspection of the two main engines, the high-end overhaul of the auxiliary engines and a complete overhaul of the entire port.

The Z-Peller propulsion units have also been overhauled in accordance with OEM guidelines, with work also including the inspection and renewal of the propeller shaft seals and the inspection and measurement of clearances for both gearboxes. .

Strathdon

In support of the on-board engineering work, in the Royston workshop, the ships’ cylinder heads, fuel injectors and fuel pumps were disassembled, cleaned and inspected for any signs of wear or damage . Where applicable, repairs were made and parts replaced.

With the completion of the works as planned and after satisfactory sea trials, the two tugs were able to resume their usual work providing port towage and support services to the North Sea coastal offshore operators.

Shaun Cairns, Royston COO, said: “We are very pleased to have supported Caledonian Towage with this engine overhaul program.

“More than ever, service fleet owners need to have confidence in the uptime of their vessels, which means that routine engine maintenance programs need to be optimized and planned very carefully. We are delighted to have achieved this goal, with the project illustrating how our blended engine experience and marine engineering capabilities allow us to perform work like this effectively and efficiently in accordance with required OEM standards. “

Caledonian Towage is a long-established fleet operator in the Cromarty Estuary and surrounding areas of the North Sea, providing towing and support services to oil fields, primarily to the Nigg Oil Terminal and to the Flat -form offshore Beatrice, and also supports the construction of offshore wind farms.
Source: Royston



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