Precautions for the use of overhead crane for sea boat:
(1) Each overhead crane for sea boat must hang a sign with the rated lifting capacity in an obvious place.
(2) During work, no one is allowed on the bridge or transporting people with a hook.
(3) It is not allowed to drive a crane without an operating license or after drinking.
(4) The operation of overhead crane for sea boat must be concentrated, not allowed to talk, smoke or do irrelevant things.
(5) Overhead crane for sea boat should be clean; equipment, tools, inflammables, explosives and dangerous goods are not allowed to be placed indiscriminately.

(6) Overload use of overhead crane for sea boat is not allowed.
(7) Lifting is not allowed under the following conditions: loose binding; overloaded mechanical parts; unknown signal; oblique pulling; objects buried or frozen in the ground; people on the objects to be lifted; flammable materials and explosive devices without safety protection measures and dangerous goods; overfilled liquid items; wire ropes do not meet the requirements for safe use; the lifting mechanism is faulty.
(8) When the overhead crane for sea boat is running on a line without obstacles, the hook or spreader and the bottom surface of the hanging object must be more than 2m from the ground. If you cross an obstacle, it must be 0.5m higher than the obstacle.