Usage MethodsPreparation WorkSelect a hand - operated chain hoist with an appropriate tonnage, ensuring that its rated lifting capacity is greater than the weight of the object to be lifted. It is strictly prohibited to use an overloaded hand - operated chain hoist to avoid potential dangers. Check whether the appearance of the hand - operated chain hoist is damaged, whether the chain is twisted, deformed, broken, etc., and whether the hook has cracks, excessive wear, etc. If any abnormalities are found, they should be repaired or replaced in a timely manner. Confirm whether the suspension point of the hand - operated chain hoist is firm and reliable. The bearing capacity of the suspension point should be greater than the sum of the rated lifting capacity of the hand - operated chain hoist and the weight of the object to be lifted. Suspension and HookingFirmly hang the upper hook of the hand - operated chain hoist on the pre - selected suspension point, ensuring that the suspension point is vertically stressed and will not shake or displace. Reliably connect the lower hook to the lifting point of the object to be lifted. When connecting, ensure that the hook completely hooks the lifting point and will not fall off during the lifting process. For objects with irregular shapes or unstable centers of gravity, appropriate binding measures should be taken to ensure the stability of the object during the lifting process. Lifting OperationGently pull the chain to put the chain in a tensioned state, and check whether all components are working properly and whether the object to be lifted is firmly suspended. Stand in an appropriate position and pull the chain evenly and slowly with both hands to make the object rise steadily. When pulling the chain, pay attention to avoid the chain getting knotted or jammed. During the lifting process, constantly observe the state of the object to be lifted and the surrounding environment to ensure that there are no obstacles blocking the object's ascent and that the object will not collide with other objects. Hoisting and PositioningAfter the object rises to the required height, the horizontal movement of the object can be controlled by pulling the chain, and the object is hoisted to the designated position. During the movement, keep the chain pulled smoothly to avoid excessive shaking of the object. After reaching the target position, slowly and evenly loosen the chain to make the object descend smoothly to the designated position. During the object's descent, also pay close attention to the state of the object to ensure a safe landing. Completion of WorkAfter the object is placed in position, fully retract the chain to restore the hand - operated chain hoist to its initial state. Remove the connections between the hand - operated chain hoist, the object to be lifted, and the suspension point, and properly store the hand - operated chain hoist to prepare for the next use.PrecautionsSafe OperationOperators must receive professional training and be familiar with the operation methods and safety precautions of the hand - operated chain hoist. It is strictly prohibited for untrained personnel to operate the hand - operated chain hoist without permission. During the lifting process, it is strictly prohibited for people to stay or pass under the object being lifted to prevent casualties caused by the object falling. Do not use the hand - operated chain hoist to pull objects obliquely or laterally. The lifting direction should be kept perpendicular to the center of gravity of the object to avoid damage to the hand - operated chain hoist or slippage of the object due to uneven stress. MaintenanceRegularly clean the hand - operated chain hoist to remove impurities such as dust and oil stains on the surface, and keep components such as the chain and hook clean. Regularly check the wear of components such as the chain, hook, and gears. If the wear exceeds the specified limit, replace them in a timely manner. At the same time, check whether the bolts and nuts at each connection part are loose. If loose, tighten them in a timely manner. Regularly add lubricating oil to the transmission components of the hand - operated chain hoist, such as gears and chains, to reduce wear and ensure its normal operation. Storage RequirementsThe hand - operated chain hoist should be stored in a dry and ventilated place to avoid rusting due to moisture. When storing, hang the hand - operated chain hoist up or place it on a special rack to avoid the chain and other components being deformed by pressure.

It is strictly prohibited to store the hand - operated chain hoist together with corrosive substances to prevent the hand - operated chain hoist from being corroded and damaged.