What are the safety precautions in elevator maintenance?

Matters needing attention in elevator maintenance 1. Users should be informed in advance before maintenance. Second, effective measures should be taken before maintenance to prevent unauthorized personnel from entering the elevator during maintenance. For example, put up maintenance notices in conspicuous places, put warning signs in front of the car, or close the door and cut off the power supply of the door machine to prevent passengers from entering the car under the premise of ensuring that there is no one in the car. Three, in the process of maintenance, if only approved personnel can enter the maintenance site in a short time, guardrail should be set around the maintenance site, and warning signs should be placed. When necessary, should assign special personnel to guard. Four, the elevator maintenance should have at least two staff to cooperate, and concentrate on each other and cooperate closely. If you want to open the hall door with the triangle key, you must see the position of the car clearly, and don't take it for granted that the elevator must be somewhere. 6. When you open the hall door and enter the car roof, you can't close the door immediately. You should put the maintenance switch into the maintenance gear, press the emergency stop switch, turn on the car roof light, and close the hall door after standing on the car roof. Seven, when leaving the car roof, first open the hall door, and then reset the car roof maintenance switch, emergency stop switch, lighting switch, etc. Close the door of the hall after arriving outside. (If people can operate the above switches when standing outside the hall, they should stand outside the hall and reset the above switches. ) 8. When the car is moving, don't lean out of the railing and don't work across the seat. At the top of the car, if the elevator is out of control, you should keep calm, hold on to what you can help, crouch in a safe place, and don't open the door and jump out. 10. In into the pit, if you want to keep the hall door of 1 floor open, you must hang warning signs outside the hall door or assign someone to take care of it to prevent others from falling into the pit; When working in the pit, cut off the safety switch of the pit maintenance box; When climbing out of the pit, only when the hall door is opened can the safety loop of the pit be connected, and then climb out of the pit quickly. If you can operate the safety switch outside the hall, turn on the safety switch after people climb out of the pit, and then close the door. )XI。 If it is necessary to short the door lock to check the elevator door lock failure, ensure that the elevator is in a maintenance state. After the inspection, be sure to disconnect the short circuit of the door lock before the elevator can be reset to the normal state. 12. Maintenance of elevators with emergency devices. If emergency switches are used, make sure that the hall doors are closed to prevent others from falling into the hoistway. Thirteen, when it is necessary to cut off the power supply to repair the elevator, a warning sign "Someone is operating, no closing" should be hung. When carrying out belt work or using electric tools, you must do a good job of preventing electric shock.