256HC Mast Section Maintenance system of construction tower crane
A sound maintenance system of construction tower crane can effectively reduce the occurrence of tower crane accidents. Linqing tower crane construction machinery factory (provide the latest tower crane price, tower crane technology) summarizes the following maintenance system of tower crane according to the use experience of tower crane:
256HC Mast Section：
http://www.towercranesupply.com/product/256hc-mast-section-liebherr-tower-crane
1. Maintenance of tower crane limiter
Do not pay attention to the maintenance of the lifting limiter, do not adjust the lifting limiter to use, some even intentionally do not use, or increase the limit value, so that the lifting limiter does not have the due limit protection.
2. Brake of tower crane lifting mechanism
The brake of lifting mechanism is not adjusted properly, too loose. In the case of over weight and high-speed lowering, the car can not be controlled due to inertia, resulting in the fall of the slide.
3. Automatic ratio change mechanism of tower crane
The automatic ratio changing mechanism, when changing from 2 times to 4 times, did not switch in place, did not pay attention to inspection, or did not add safety pin, during lifting, the movable pulley would suddenly fall, causing major accidents.
256HC Mast Section：
http://www.towercranesupply.com/product/256hc-mast-section-liebherr-tower-crane
4. Maintenance of tower crane wire rope
The wire rope is severely twisted and disordered, which is not eliminated in time, so it is forced to use.
5. Tower crane hook
Due to the landing of the hook, the steel wire rope is loose and rebounded, the steel wire rope jumps out of the drum or the pulley, which is seriously squeezed or broken, and it is not replaced in time. When the crane is fully loaded or overloaded, the broken rope falls.
6. Tower crane wire rope end rope buckle nut
The rope buckle nut at the end of the wire rope is not locked tightly, which makes the rope head slide out of it.
256HC Mast Section：
http://www.towercranesupply.com/product/256hc-mast-section-liebherr-tower-crane
