Major repairs carried out to buoy laying vessel ‘Terschelling’ by Damen Shipyards Den Helder
‘Terschelling’ arrived at Damen Shipyards Den Helder for annual and corrective maintenance, and testing however after dry-docking, it was discovered extensive repairs were required.
Annual maintenance
Testing and annual certification checks were carried out to the MOB davit, to the lifting and lashing equipment, the safety equipment including fire-fighting equipment and to the navigation instruments and radio. In addition, the diesel-fired heater was also serviced.
Buoy laying crane
Major work was carried out to ‘Terschelling’s’ buoy-laying crane. This was dismantled by Damen Shipyards Den Helder in conjunction with drive and control technology specialist Bosch Rexroth.
The hydraulic pumps and cylinder were then taken to Bosch Rexroth’s factory for servicing and repairs while Damen Shipyards Den Helder checked the crane’s joints and clearances. The crane was then reassembled and tested at 125% load, witnessed by the class certification representative.
Maintenance
Other maintenance work to ‘Terschelling’ included removing the propeller shafts so the fore and aft seals and liners could be overhauled, work that was carried out in conjunction with Wartsila Netherlands BV which also installed new propeller hubs.
New antifouling was applied to the hull and an upgrade was carried out to the dynamic positioning (DP) computers by Imtech Marine Netherlands.
Stern thruster
Once the vessel was in dry dock, it was discovered the Wartsila stern thruster was leaking oil. This was then sent to Wartsila Netherlands at Schiedam to be dismantled and for a major overhaul.
DAMEN SHIPYARDS DEN HELDER
Read moreDamen Shipyards Den Helder started out as a small ship repair business in 1923 and seventy years later joined the Damen Shipyards Group. Now it is focused on repair and maintenance for the offshore, dredging, fishing and towage markets. It also undertakes the occasional new build project.
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