Notice of Using Hoist Chain Block

Chain hoist is a simple and easy-to-carry manual lifting machine. It is suitable for short distance lifting of small equipment and goods. The lifting weight generally does not exceed 10T, the maximum can reach 20T, and the lifting height generally does not exceed 6m . The material of the shell of the chain hoist is high-quality alloy steel, which is sturdy and wear-resistant and has high safety performance.

1. The hoist chain block must be fully inspected before hoisting. All parts of the hoist should be intact. It is strictly prohibited to use it when any of the parts cracked .
2. It is strictly forbidden to hook the lifting hook to the lifting chain or unbundled the lifting chain into a single-chain to lift the weight.
3. The rope and fulcrum of the hoist must be stable and reliable. When hanging the hoist, it must be hung firmly to prevent accidents during lifting.
4. The objects to be hoisted must be within the rated load. It is forbidden to lift heavy objects buried in the ground or condensed on the ground.
5. Before lifting, check whether the hook is hung securely and the anti-fall device is in place. The hook must not be sloping and heavy objects shouldn’t be hang at the tip of the hook. The lifting chain should be hung vertically, and the chain links should not be twisted and knotted.
6. Before operating the chain hoist, it must be tested. When it can lift normally off the ground and the brake is reliable, continue the operation.
7. Make sure that there’s no obstacles around the hoist, and stand in a safe place to operate. Other persons should stay away from the hoist area to avoiding the direction of rebound and heavy objects falling when the chain is broken. When the operator reaches the height of 1.5 meters, he must wear a safety belt and stand firmly.
8. During the process of lifting or lowering heavy objects, pull the bracelet to apply the force evenly and gently. Do not use too much force to avoid the bracelet jumping or snapping.
9. When lifting heavy objects, people are strictly prohibited to stand under the heavy objects.
10. If the operator can’t pull the chain, he should stop the operation immediately and check: ① whether the heavy object is connected with other objects; Whether the load rating of the hoist is exceeded.
11. When the suspended object shows signs of falling off, when the lifting point moves or deforms, when the heavy object is unstable, rotates, or swings, the lifting should be stopped immediately.
12. Except special requirements, the heavy objects is not allowed to hanging in the air for a long time, and the operator shall not leave the site.
13. Do not engage in other operations while the heavy object is being lifted, there must be reliable anti-fall, anti-tilt and anti-swing measures when the operator has to be absent.
14. After use, the dirt on the gourd should be cleaned, and then stored in a dry place to avoid moisture, rust and corrosion, disassemble is strictly prohibited.
15. Static load and dynamic load tests of chain hoists should be carried out every quarter.

① Static load test: Lift at a rated load to about 100 mm from the ground and stand for 10 minutes. After the test, check whether all components are normal.

② Dynamic load test: Repeated lifting with rated load, check whether the mechanical transmission part and connection part are abnormal, and whether the self-locking device is reliable.

1. The hand chain hoist repaired must be subjected to static load and dynamic load tests and checked by technical personnel before using.