Maintaining anchor chains requires daily inspections, regular inspections, and timely maintenance. Daily inspections include checking anchors, anchor chains, and anchor windlasses, regular inspections include comprehensive inspections of anchors, anchor chains, and anchor windlasses, and timely maintenance includes rust removal, painting, and lubrication.

The following are specific maintenance methods:

1.End shackle: Pay attention to the wear and deformation of the shackle on a daily basis, and observe whether the pin is loose. If problems are found, the hidden dangers should be eliminated in time. The loose connection of the end shackle is the most common cause of anchor loss. When anchoring, if the anchor chain is thrown vertically from the top and the position is too high, there is a risk of damage to the end shackle and twisting, which will tear the fixing pin and cause the end shackle bolt to be lost, resulting in anchor loss.

2.Stud: Pay attention to check whether the crossbar is loose and detached on a daily basis.

3.Swivel: Pay attention to check whether the swivel is normal and flexible on a daily basis.

4. Anchor chain: Check the wear of the anchor chain daily, especially the connection part of the anchor chain. The maximum thickness of the anchor chain is not allowed to exceed 10~12% of its diameter. If it is found that the loss is close to this critical value, be very careful when using it to avoid exceeding its load, and replace the over-worn anchor chain as soon as possible. Observe whether the anchor chain mark is clear. Usually, the left and right anchors should be used in turn to reduce wear.

In order to avoid hair loss during use, daily inspection of the anchor machine is also very important. Check whether the brake is in good condition every day, and the clutch should be refueled frequently to ensure flexible and light operation. The gear box of the sprocket should be refueled frequently and the oil should be clean and free of impurities. Pay attention to the wear of the threads of the gears and brake rods.

The anchor chain stopper should be kept active and rust-proofed and painted frequently; the lips of the upper and lower openings of the anchor chain barrel are easy to wear, and their wear should be checked frequently, and surfacing and polishing should be performed during ship repair. During the regular inspection of the chain locker, all the anchor chains should be poured out, cleaned, and the drainage equipment of the chain locker should be checked to see if it is normal; the damaged wooden pads should be replaced; and the chain locker should be derusted and painted.

Many reasons for anchor loss are due to anchor machine failure

1. The anchor machine brake fails when anchoring, causing the anchor chain to loosen and lose control.

2. Failure of the anchor machine motor can also cause the anchor and anchor chain to loosen and lose control.

3. When lifting anchor in bad weather, the anchor chain is retracted when the hydraulic motor is running, which exceeds the load of the anchor machine, causing the anchor machine hydraulic motor to explode and cause an accident.

The above three situations are very dangerous to nearby operators, especially the explosion of the hydraulic motor and the flying debris can cause fatal accidents.

Many reasons for anchor loss are due to improper anchoring operation

1. Improper anchoring method.

2. Improper use of anchor machine brakes.

3. Improper anchoring.

4. Improper anchor chain fixing.

5. Improper anchor duty.

6. Not sufficiently alert to the impact of bad weather, etc.

Doing a good job of daily maintenance can effectively extend the service life of anchors and anchor chains, and also protect the safety of ships.