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Method for thruster withdrawal for maintenance or vessel transit without making use of an external crane, a remotely operated vehicle, or of divers
Method for thruster withdrawal for maintenance or vessel transit without making use of an external crane, a remotely operated vehicle, or of divers
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机译：在不使用外部起重机，遥控车辆或潜水员的情况下撤回推进器以进行维护或运输的方法
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摘要
A method is disclosed herein for lifting thrusters 6 on vessels enabling for on vessel maintenance at sea. The method can include engaging a thruster mounting flange 34 with a thruster well bottom flange 20; installing alignment guide plates 44 to provide a rough alignment; positioning a seal 42,43 to provide a connection; installing fasteners 88 to secure the flanges 20, 34; actuating clamps 24a-24d to secure the flanges 20,34 while compressing the seal 42, 43; raising the thruster 6 out of the thruster well 18; transporting the thruster 6 to a deck 51 of the floating vessel; actuating clamps 24a-24d to hold the flanges; removing the fasteners 88; flowing water into the thruster well 18; disengaging the clamps 24a-24d; and lifting the thruster 6 with the lifting means 14.
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