L48A1 Mast Section After the shutdown, the tower crane was re-activated. What inspections should be done?
Many construction sites will be suspended for a number of reasons. The tower crane will be reactivated after a period of suspension. A comprehensive and detailed inspection should be done and it can be put into use only after all safety hazards are eliminated. Here, the tower crane factory small editor summed up some of the things that should be paid attention to when the tower crane is used to discuss with everyone.
1, there is no water in the structure or frostbite deformation
If it is relatively cold, such as the resumption of work after the New Year, after the winter, there is more or less some snowfall, and the tower hanging structure is not completely sealed, so some standard sections, components, gaps and other places will have some water. Pay attention to these parts in the inspection and clean them up as soon as they are found, because these waters will not only corrode the metal itself, but also cause greater damage when the heat expands and cools. As the season changes, the temperature increases, its corrosivity will increase exponentially.
2, lubricants
After a long period of placement, the lubricating oil in each speed reducer must be carefully checked before being activated to observe whether there are water and dust and other debris. Check not only the quality of oil and the amount of oil, but also to confirm the oil Mark number, the need for seasonal replacement must be replaced in time to avoid the normal use of image equipment.
3, wire rope
The wire rope plays an irreplaceable role in the tower crane, and the wire rope scrap standard must be strictly enforced. The wire rope that reaches the scrap condition must be immediately scrapped and replaced. As a result of a period of stop, it is necessary to pay attention to the steel rope corrosion, surface impurities and so on. During the inspection, attention should also be paid to the components associated with the wire rope, such as a reel, a loader, a pulley, and a tether anti-grooving device. In addition, we must pay attention to the lubrication of the wire rope. Only good lubrication can ensure the life and safe use of the wire rope.
4, electrical systems
Before the wire rope is reactivated, it must ensure the independence of its power supply, and ensure that "one machine, one gate, and one leak" can not be enabled for those who can not be satisfied. In the inspection of electrical systems, emphasis should be placed on checking whether there is water, dust, debris, etc. in the distribution box, whether the cable is damaged and insulated, whether the motor itself and the junction box are sealed, the protection circuit, and the main parts and components. Be sure to be sensitive, reliable, safe and effective.
5, safety devices
The safety device of the wire rope is particularly important for safe production. All safety devices must be opened and inspected before re-use, ensuring that there is no water and dust, and that all safety devices can function properly. It is necessary to conduct practical experiments on all safety devices. Only when it is confirmed that it is correct can it be put into use.
