How to master the technical essentials of elevator maintenance
Elevators in use should be inspected and maintained regularly to ensure the safe operation and extend the service life of the elevator. Usually there are certain requirements in the regular cycle maintenance and inspection cycle of elevators, which are roughly divided into 6 ways, such as daily inspection, monthly inspection, quarterly inspection, annual inspection, and special inspection, to carry out planned, purposeful and organized regular cycle maintenance inspections. Each maintenance and inspection system has its own focus and specific content in terms of methods; In the front and back links, it is closely linked and closely linked, and the maintenance personnel should also formulate the specific maintenance method of the elevator according to the frequency of the use of the elevator in the unit, and then carefully and rhythmically implement the maintenance system.
What are the differences between various maintenance systems, what are the key parts of maintenance, and what are the specific characteristics of the parts of maintenance, the situation is as follows:
1. Daily inspection and maintenance system:
Maintenance personnel are required to carefully ask the elevator driver if there is a problem with the use and operation of the elevator every day, and then personally inspect it, and finally make a daily record of the situation of each part after the inspection. The key parts of maintenance: should be placed on the correctness of the elevator operation and the stability of the elevator running speed. If any problems are found, they should be solved in time to ensure that the elevator operates safely without failure. The specific parts of the daily inspection system are as follows:
(2) Whether the summoning and floor display of the outer floor station of the hall are correct;
(3) Whether the position of the car parking plane is accurate;
(4) Whether the control screen accepts instructions and controls the actual operation actions are coordinated;
(5) Whether the actual load in the car is consistent with the rated load in the car.
(2) The fast and slow speed of the tractor should be normal and stable;
(3) The speed of the fast and slow trains of the traction motor should be normal and stable;
(4) The rotating wheel of the speed limiter device and the running speed of the car should be the same;
(5) When the elevator is running at full speed, when it quickly converts to slow speed, when starting and stopping, there should be a feeling of safety, stability and comfort in the car;
(6) The short-range operation of the elevator should be stable and normal. These are the key and specific parts of the daily maintenance inspection system.
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2.1 Reliability inspection of elevator operation safety devices
(1) Whether the door lock of the hall door is reliable;
(2) Whether the electrical limit interlocking effect of the car and hall door is reliable;
(3) Whether the emergency stop button or safety switch in the car is reliable;
(4) Whether the safety gear limit switch is reliable;
(5) Whether the safety window switch functions correctly;
(6) Whether the control box and control switch on the roof of the car are correct and reliable.
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