Safe operation of the hottest construction elevato

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Safe operation of construction elevator

safe operation of construction elevator

1. The construction elevator should be a dual-purpose elevator, and its installation and disassembly must be in the charge of a professional team that has obtained the disassembly and assembly qualification certificate issued by the construction administrative department, and must be operated and maintained by professionals who have received professional training and obtained the operation certificate

2. The key inspection items before operation shall meet the following requirements, and the index can be 1%

(1) there is no deformation in each part of the structure, and the side connecting bolts are not loose

(2) the rack and gear, guide wheel and guide rail are connected normally

(3) data processing was carried out after falling, and each steel wire rope was fixed well without abnormal wear

(4) there are no obstacles within the operating range

3. Before starting, check and confirm that the cables and grounding wires are intact, and the control switch is in the zero position. After the cable is connected, check and confirm that the voltage is normal and that there is no leakage. Test and confirm that the electrical interlocking devices at each limit device, ladder cage, enclosure door, etc. are good and reliable, and the electrical instruments are sensitive and effective. After starting, the no-load lifting test shall be carried out to measure the efficiency of the brake of each transmission mechanism. The operation can be started only after it is confirmed to be normal

4. As the main supplier in the field of glass fiber, when the elevator is operated with load for the first time in each shift, when the ladder cage is raised 1 ~ 2m above the ground, it should stop the machine to test the reliability of the brake; When the braking effect is found to be poor, it should be adjusted or repaired before operation

5. When people or objects are carried in the ladder cage, the load should be evenly distributed without bias. Overload operation is strictly prohibited

6. The operator should operate according to the command signal. Sound before operation. Before the main power switch of the lift is cut off, the operator shall not leave the operation post

7. When abnormal conditions are found during the operation of the elevator, stop the machine immediately, take effective measures to lower the ladder cage to the bottom floor, and continue the operation after troubleshooting. In case of electrical out of control during operation, immediately press the emergency stop button; Do not open the emergency button before troubleshooting

8. The elevator must stop running in case of heavy rain, fog, strong winds of level 6 and above, and the guide rail frame, cable, etc. are frozen, and the ladder cage suitable for glass fiber fabric reinforced thermoplastic and thermosetting plates must be lowered to the bottom floor, and the power supply must be cut off. After the storm, the relevant safety devices of the lift shall be checked once, and can be operated only after they are confirmed to be normal

9. It is forbidden to use the travel limit switch as the control switch to stop the operation when the elevator reaches the top or bottom

10. When the elevator stops halfway during operation due to power failure or other reasons, it can be lowered manually, and the manual release handle of the brake electromagnet at the end of the motor can be slowly pulled out to make the ladder cage slide down slowly. When the ladder cage slides, it shall not exceed the rated running speed, and the manual descent must be operated by professional maintenance personnel

11. After operation, the ladder cage should be lowered to the bottom floor, each control switch should be turned to zero, the power supply should be cut off, and the switch box should be locked. Lock the cage door and enclosure door

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