When checking the speed change and limit switch operation, the operator must choose a completely reliable body position, and the password must be repeated before driving. 16. After the car top is repaired and maintained, when leaving the car, the landing door should be closed and the switches on the car top should return to normal. 17. When using a climbing ladder to go up and down the pit during work, the foot of the ladder must be on a solid place, and the upper end of the ladder must not lean against the guide rail. 18. When it is necessary to drive while working in the pit, the maintenance personnel must stand in a safe position to prevent being tripped over by the cable car foot guard and balance chain. 19. When using flammable and explosive alcohol, there should be no open flame, the leftover should be properly kept, and the waste should be properly disposed of. 20. After the work of the pit is completed, the maintenance personnel should restore the switches and confirm that it is safe and normal before boarding the pit and closing the landing door for trial operation. 21. In the case of the following three serious situations, elevator maintenance must be strictly inspected by the relevant department and can be used after repair and identification: (1) When the elevator has severe top and bottom collisions; (2)When Residential elevator occurs; micro and light shocks affect the elevator The damage is not great, but the car or counterweight guide shoes may break off the guide rail or part of the wires will be cut off. At this time, starting the elevator will cause unexpected accidents. ⑶ When a fire occurs: close the hall doors on each floor to prevent the fire from spreading to other floors and cut off the power supply. 22. After the work is completed, the elevator car should stop at least three floors away from the lowest floor to ensure the safe evacuation of maintenance personnel.