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When lifting heavy objects with hooks in the lifting equipment, the following key issues need to be paid attention to to ensure the safe and smooth operation:

1. Inspection and preparation:

Before starting work, the position of each operating handle must be carefully checked to ensure that they are in a correct and safe position.

In rainy and snowy weather, in order to prevent the brake from getting damp and failing, you should first go through a trial lift and confirm that it is reliable before you can operate.

Cast hooks are not allowed for lifting machinery hooks, and re-welding of hooks is prohibited. The surface should be smooth and free of peeling, sharp corners, burrs and cracks.

2. The relationship between hook and heavy object:

When lifting heavy object, the center of gravity of the heavy object and the center of the hook should be on the same vertical line and must not be biased.

The hook wire rope should be kept vertical, and it is not allowed to drag the hanging heavy objects in an inclined state.

When the hook has been hung but the weight of the lifting has not been lifted, the crane is prohibited from moving its position or performing rotational movement.

3. Operating specifications: When lifting objects in a crane, it should be carried out at a slow speed and the speed must not exceed the specified value.

The rotation speed must be uniform. No reverse operation is allowed before the heavy object stops stably. Emergency braking is strictly prohibited in non-emergency situations.

It is prohibited to swing heavy objects on slopes, and it is prohibited to lift items buried underground or condense underground or have unknown weight.

It is strictly forbidden to stand on lifting objects, and it is strictly forbidden to use cranes as means of transportation. When lifting, no one shall stand under the boom or under heavy objects raised.

4. Height and distance:

Pay attention to the lifting height of the hook to prevent it from being raised beyond the limit position.

When running without load, the distance between the hook and the ground must not be less than 2 meters.

When running with weight, the weight must be more than 0.5 meters higher than the higher obstacles on the running route.

When lifting heavy objects over an obstacle, the bottom of the heavy objects should be at least 0.5 meters higher than the higher point of the obstacle that is crossed.

5. Safety device:

The hook should be equipped with anti-falling device. The anti-falling pawls must not be opened when the hook is loaded. After installing the pawl, the size of the hook should not exceed 10% of the hook size.

Confirm the hook regularly. If surface cracks, deformation or wear exceeds the standard, it should be scrapped or repaired in time.

6. Multiple machines operate:

When more than two machines are hoisted, unified command, coordinated actions, and reasonable allocation of lifting weight must not exceed 80% of the allowed lifting weight of a single machine.

7. Precautions for shutdown:

When shutting down, heavy objects must be put into the ground first, and heavy objects must not be suspended in the air and shut down.

By following the above precautions, the safety and efficiency of lifting equipment when lifting heavy objects can be ensured. At the same time, regular maintenance and inspection are also the key to ensuring the long-term and stable operation of lifting equipment.

When lifting heavy objects with hooks in the lifting equipment, the following key issues need to be paid attention to to ensure the safe and smooth operation:

1. Inspection and preparation:

Before starting work, the position of each operating handle must be carefully checked to ensure that they are in a correct and safe position.

In rainy and snowy weather, in order to prevent the brake from getting damp and failing, you should first go through a trial lift and confirm that it is reliable before you can operate.

Cast hooks are not allowed for lifting machinery hooks, and re-welding of hooks is prohibited. The surface should be smooth and free of peeling, sharp corners, burrs and cracks.

2. The relationship between hook and heavy object:

When lifting heavy object, the center of gravity of the heavy object and the center of the hook should be on the same vertical line and must not be biased.

The hook wire rope should be kept vertical, and it is not allowed to drag the hanging heavy objects in an inclined state.

When the hook has been hung but the weight of the lifting has not been lifted, the crane is prohibited from moving its position or performing rotational movement.

3. Operating specifications: When lifting objects in a crane, it should be carried out at a slow speed and the speed must not exceed the specified value.

The rotation speed must be uniform. No reverse operation is allowed before the heavy object stops stably. Emergency braking is strictly prohibited in non-emergency situations.

It is prohibited to swing heavy objects on slopes, and it is prohibited to lift items buried underground or condense underground or have unknown weight.

It is strictly forbidden to stand on lifting objects, and it is strictly forbidden to use cranes as means of transportation. When lifting, no one shall stand under the boom or under heavy objects raised.

4. Height and distance:

Pay attention to the lifting height of the hook to prevent it from being raised beyond the limit position.

When running without load, the distance between the hook and the ground must not be less than 2 meters.

When running with weight, the weight must be more than 0.5 meters higher than the higher obstacles on the running route.

When lifting heavy objects over an obstacle, the bottom of the heavy objects should be at least 0.5 meters higher than the higher point of the obstacle that is crossed.

5. Safety device:

The hook should be equipped with anti-falling device. The anti-falling pawls must not be opened when the hook is loaded. After installing the pawl, the size of the hook should not exceed 10% of the hook size.

Confirm the hook regularly. If surface cracks, deformation or wear exceeds the standard, it should be scrapped or repaired in time.

6. Multiple machines operate:

When more than two machines are hoisted, unified command, coordinated actions, and reasonable allocation of lifting weight must not exceed 80% of the allowed lifting weight of a single machine.

7. Precautions for shutdown:

When shutting down, heavy objects must be put into the ground first, and heavy objects must not be suspended in the air and shut down.

By following the above precautions, the safety and efficiency of lifting equipment when lifting heavy objects can be ensured. At the same time, regular maintenance and inspection are also the key to ensuring the long-term and stable operation of lifting equipment.