During use, the lifting chain will bear the weight of the hoisted object, as well as the friction and tension. Long-term use will cause the lifting chain to wear, which will affect the normal operation of the lever hoist. The lifting chain of the lever hoist will have surface wear, which is caused by excessive friction between the chain and the hoisted object. When the surface of the 80-level lifting chain is severely worn, it will affect the strength and service life of the chain.
Long-term use of portable lever hoists will also cause deformation of the lifting chain.