What Are The Effective Measures To Prevent The Overturning Of The Crane?

- Sep 09, 2017 -

1. crane road must be smooth, solid and reliable, parking site must be flat.

2. cranes shall be parked in the ramp, do not allow the crane two nappe or leg parts remain a hard and soft soil or high.

3. when lifting components, the slings should be kept vertical, and shall not exceed the slewing radius of the crane, so as to avoid the overload and slippage of the steel rope or to lift the rope and to make the crane unstable. A tension rope shall be used for lifting heavy components.

4. crane operation, boom lifting, falling, rotating to be stable, not in the air shaking, while trying to avoid emergency braking or impact, vibration and other phenomena. Without reliable technical measures and without the approval of the relevant technical departments, the crane is strictly prohibited to overload hoisting, so as to avoid speeding up the wear and tear of the mechanical parts and causing the crane to overturn.

5. cranes should avoid full load running; in full or near full load, no simultaneously lifting and rotary (lifting and horizontal rotation or lifting and walking) two kinds of action, so as to avoid uneven roads or inertia force caused by crane overload caused the accident.

6. when two hoisting machines work at the same time, the suspension of the two machine hooks should keep the safety distance above 5m, so as to avoid collision accidents.

7. double lifting member, to carry out the reasonable load distribution according to the crane capacity (lifting quality shall not be more than two cranes allowed the weight of 75% of the total load, not every crane exceeds the safety load of 80%). In operation, it must be coordinated under the unified command, movement, lifting and moving at the same time, and the hook and pulley block of the two cranes should be basically kept vertical. The drivers of the two cranes should closely cooperate with each other to prevent a crane from losing weight and to overload another crane.

8. when lifting, there should be a special person responsible for unified command, command personnel should be located in the vision of the operator and the location, and can clearly see the whole process of lifting. The crane driver must be familiar with the signal and operate according to the various signals of the command personnel. The command signal should be stipulated in advance and the signal should be bright and accurate.

9. when the wind is equal to or greater than six, it is prohibited to carry out crane moving and lifting operations in the open air.

10. cranes to stop working, should stop turning and walking mechanism, lock the cab door. The hanger shall not be hung, and shall be elevated to avoid swinging, wounding and causing the crane to lose its stability.


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