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How to maintain the lifting chain of chain hoist?

The chain of the electric hoist is the key that affects the entire electric hoist. Whether it can work normally depends on the quality of the chain, so it is very important to maintain the chain. The following describes how to maintain the chain to make it last longer.

Lubrication: By regularly lubricating the ring chain, it can be guaranteed that the average dry chain is 15-20 times higher than the dry, non-lubricated chain. We recommend that the entire length of the chain should be lubricated before using the chain, and all chain links must be lubricated. Missing links can cause premature wear. During the lubrication process, make sure that the lubricant penetrates into the most vulnerable position of the chain link. The replaced chain link requires especially careful lubrication. The replacement chain link is stopped at the entrance of the driving and returning wheels when the lifting is switched to the descending constant stroke. These links are heavily loaded by dynamic vibration, so they need to be carefully lubricated at shorter intervals. Proper lubricant selection depends on the operating location and environmental conditions.
Maintenance: When doing maintenance work, the manufacturer must always pay attention to the instructions for the installation and disassembly of the lifting equipment, commissioning, operation and maintenance. The effective accident prevention regulations in the industrial standards DIN 818-7 and DIN685-5 must be observed in a timely manner.

Tensioning force: The tension of the chain must be checked regularly, especially when the new chain is just in use or a longer chain. The magnitude of the tension force only needs to meet the requirements of the chain and the connection piece to run perfectly under normal working conditions. On multi-chain devices, the forces on all chains must be the same. Excessive tension can shorten the life of the chain.

Daily inspection: According to DIN685-5 and effective accident prevention regulations, the chain must be inspected regularly, at least once a year. As the frequency of use increases, the interval between inspections must be shortened accordingly, and adjustments must be made according to the operating conditions that affect it, such as wear, corrosion, thermal effects, and sensitivity factors for failures. As long as there is no empirical value for the degree of wear under actual operating conditions, the necessary inspections must be performed after each new lubrication chain. The inspection includes detecting external failures, deformations, cracks, wear and corrosion.

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