Precautions to be Observed during Docking & Undocking

Bunkers should not be taken when the ship is on the blocks. In cases where ships sail out immediately after dry-docking. Bunker is to be supplied after the ship has undocked and is floating.

Shore power cables are to be connected after the ship has docked and the dock is dry. The cables should be disconnected before flooding the dock.

During the flooding of the dock, the flooding is stooped when the level of water in the dock reaches just above the high suction box. All the sea suction valves under the floor plates should be checked for any leaks. In this situation, the ship is not floating and is still sitting firmly on the blocks. This verification is necessary to avoid any mistakes made by shipyard staff whereby some valves have not been fitted their cover joint sand gland packings. A second docking can be avoided by this check.

The Master and C/E should visit the dry dock before flooding and verify the following before giving orders for flooding: (a) The rudder fastening bolts are tight and cemented, the pintle cover plates are in place and welded. (b) The propeller cone fitted and all bolts cemented. (c) The rope guard in place and properly welded. (d) The sea suction box grids fitted and locked with locking wire. (e) Bilge keel repairs are completed. (f) Both anchors hoisted and housed in their respective hawse pipes. (g) Freshwater can be supplied in the dry dock as required. But it should be ensured that the soundings of freshwater tanks at the time of un-docking is the same as soundings when docking.

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