The marine anchor chains play an important role in the safe berthing of the ship. This article describes how to do well maintenance of anchor chains.

First of all, Before using the anchor chain, ensure that the chain wheel is installed on the shaft without deflection and swing. Timely check the tightness of the anchor chain and adjust it correctly. If the anchor chain is too long or stretched after use, which is difficult to adjust, the chain link can be removed as appropriate, but it must be an even number. The chain link shall pass through the back of the chain, and the locking plate shall be inserted outside. The opening of the locking plate shall face the opposite direction of rotation.

Secondly, the abrasion degree of anchor chain shall be checked frequently. More than 1/3 of the chain link of the same anchor chain has obvious elongation, and it cannot be used when the deformation and wear amount reaches 10% of the original diameter. After the chain of anchor chain is seriously worn, it shall be replaced with a new chain wheel and a new chain to ensure good engagement. At the same time, the end of the anchor chain and the commonly used end should be replaced in a planned way after one or two years of use, and the front and back positions of each chain link should be marked again.

Finally, pay attention to the anchor chain maintenance in the process of use. The anchor shall not be stopped before it reaches the bottom each time when it is anchored, and the anchor chain shall be washed clean when it is hoisted to remove sediment and other debris; Keep the anchor chain dry at ordinary times, and do not flush the water into the chain locker when washing the deck; Check every half a year, arrange all anchor chains on the deck for rust removal, painting, and inspection, and keep the marks clear and visible; The anchor chain shall be filled with lubricating oil in time during use, and the lubricating oil must enter the fitting clearance between the roller and the inner sleeve, to improve the working conditions and reduce wear.