Tips for Maintenance of Anchor Chains
Anchor chains are used more and more frequently in ocean ships. We should learn to maintain the chain properly, so as to improve the service life of the chain. Only by being diligent in maintenance can the normal operation of cranes, ships and other machinery be guaranteed, so as to achieve safe operation. So, how should the anchor chain be maintained everyday?
First of all, when using the anchor chain, it should be checked frequently to ensure that the sprocket is installed on the axle without skewing and swinging. If there is any inappropriate situation, it should be corrected in time. Check the tightness of the anchor chain in time and adjust it correctly in time. The tightness of the chain should be appropriate. If it is too tight, it will increase the power consumption, and the bearing will wear easily. If it is too loose, the chain will jump and release easily. If the anchor chain is too long or elongated after use, it is difficult to adjust. The link can be removed according to the situation, but it must be even. Chains should be passed through the back of the chain, the lock piece is inserted outside, and the opening of the lock piece should be in the opposite direction of rotation.
Secondly, the wear degree of the anchor chain should be checked frequently. To what extent can the wear of the anchor chain not be used? More than one third of the chain links in the same section have obvious elongation, and the deformation wear amount can not be used when it reaches 10% of the original diameter. After serious wear and tear of anchor chain, new sprockets and new chains should be replaced to ensure good meshing, not just new chains or new sprockets. At the same time, the end of the anchor chain and the common end should be replaced and marked in a planned way after one or two years of use. In addition, special attention should be paid to the old chain of the anchor chain can not be mixed with some new chains, otherwise it is easy to produce impact in the transmission process and break the chain.
Finally, in the course of using, we should pay attention to the maintenance of the anchor chain. When anchoring, the anchor chain should not be stopped at all. When lifting the anchor, we should wash the anchor chain clean and remove the sediment and other debris. In peacetime, we should keep the anchor chain dry and wash the deck without flushing the water into the anchor chain cabin. Every half year, we should check the anchor chain and arrange it all on the deck for rust removal, paint and inspection. The signs should be clearly visible; the anchor chain should be filled with lubricating oil in time in use, and the lubricating oil must enter the mating clearance between the roller and the inner sleeve in order to improve working conditions and reduce wear and tear.