Technical operation specification of the hottest c
2022-10-22- Detail
crane technical operation procedures (3)
IX. when lifting heavy objects, the center of the hook should vertically pass through the center of gravity of the heavy objects. Carry out trial lifting first, and stop the machine for inspection when the heavy object is lifted 200 mm off the ground; Domestically speaking, the crane has stability, braking reliability, balance of heavy objects and firmness of binding. When lifting with heavy load, try to avoid lowering the boom. When it is necessary, put down the heavy object first, and then put the boom
X. if two cranes are used to lift the crane, the boom of the two trucks should be kept at a certain distance (to prevent the pole heads from colliding and the lifting center of gravity from overlapping, resulting in eccentric weight). There should be a special person for unified command, and the speed should be slow. Close cooperation with the action coordination can carry out complex data analysis and adjustment. The weight should not exceed 75% of the total rated lifting weight of the two cranes, and the load borne by each crane should not be greater than 80% of its rated lifting weight
Xi. When lifting and rotating heavy objects, the speed should be uniform and the action should be stable. When heavy objects fall, they must be placed gently at a low speed. Sudden braking aimed at reducing VOC emissions is prohibited. Carved heavy objects are forbidden to fall freely. During operation, pay close attention to the action state of the hook and steel wire rope to let go of the back winding rod, etc
XII. Do not reverse the action before the slewing or landing lever stops stably. It is strictly forbidden to hit the wrong car to achieve the purpose of braking
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