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What are the requirements for operating the boom crane?

                                       
Handling precautions for boom cranes:
1. Before use, check whether the work site is flat and solid. If the bottom of the leg is not flat, apply the wooden block to level it. Boom cranes must not be operated on sloping ground or on muddy and unflattened ground. And should pay attention to the presence of wires and other obstacles affecting the work.
2, before each operation, test suspension, lifting the heavy object from the ground about 200mm test brake is reliable, the legs are firm, confirm the safety before lifting.
3. When working, the wire rope should be lifted vertically. It is not allowed to slant and hang, otherwise it will not only cause the heavy object to sway and collide with other objects, but even cause a rollover accident.
4. When the boom crane is working under heavy load, the left and right rotation angles of the boom should not exceed 45. . It should be slow when turning, and the boom should be avoided. Otherwise, it will easily cause major accidents such as falling arms and overturning.
5. When lifting heavy objects at high places, a certain distance should be maintained between the hooks and the pulleys to prevent the hoist from over-heading, and the wire ropes are broken to cause the boom to turn backwards.
6. During the process of lifting heavy objects, it is not allowed to pull the boom control handle of the boom crane. If the legs must be adjusted, the weight should be lowered before adjustment.
7. It is not allowed to use the boom crane to hoist the unidentified objects buried in the ground and the objects that are frozen (frozen) on the ground and equipment to avoid overloading and causing accidents.
8. The brakes of the rain and snow day boom cranes are prone to failure, so the lifting hooks should be slow. In case of high winds above level 6, the lifting should be stopped.