故障情況一：肯德基門閉合不緊密

Fault condition 1: KFC door is not tightly closed

故障詳細分析：肯德基門開啟后，門扇閉合不嚴密，有寬度0.1cm以上的縫隙。這種情況產生原因主要由于閉門器使用頻繁、維護不及時或者閉門器本身質量問題都會產生這種情況。如果是前兩個原因造成的可以通過調閉門器關閉力度以達到維修目的，如果是產品質量問題通過更換閉門器即可。

Detailed fault analysis: after the KFC door was opened, the door leaf was not closed tightly, and there was a gap with a width of more than 0.1cm. This situation is mainly caused by frequent use, untimely maintenance or quality problems of the door closer itself. If it is caused by the first two reasons, it can be repaired by adjusting the closing force of the door closer. If it is a product quality problem, it can be solved by replacing the door closer.

故障情況二：肯德基門門扇下垂

Fault condition 2: KFC door leaf sagging

故障詳細分析：肯德基門門扇下垂，出現摩擦地面的現象。這種情況可以從地軸尋求方法。安裝技術不到位、地軸承重量小于門扇重量、地軸本身質量問題都會產生這種情況。如果是后兩個原因造成的，只能通過更換地軸問題，如果是因為安裝技術問題導致的，可以通過砸地軸以達到維修目的。

Detailed fault analysis: KFC door leaf sagged and rubbed the ground. This situation can be solved from the earth axis. The installation technology is not in place, the weight of the ground bearing is less than the weight of the door leaf, and the quality problem of the ground shaft itself will cause this situation. If it is caused by the latter two reasons, the problem can only be solved by replacing the ground shaft. If it is caused by installation technical problems, the maintenance purpose can be achieved by smashing the ground shaft.

濟南肯德基門廠家在維修肯德基門的過程中，發現還有一種常見的因素導致的門下垂，就是調節螺絲因退絲造成門下垂，探索的維修辦法是通過用內六角扳手調節兩邊的地軸達到門的升降，順時針為上升，逆時針為下降，用這種方法對信都第五營業室門進行維修，避免更換配件，有效降低了運維成本。

In the process of maintaining the KFC door, the manufacturer of Jinan KFC door found that there was another common factor causing the door to sag, that is, the adjusting screw caused the door to sag due to thread withdrawal. The maintenance method explored was to use an Allen wrench to adjust the floor shafts on both sides to achieve the lifting and lowering of the door. The needle rose in time and fell in anticlockwise. This method was used to repair the door of the fifth business room of Xindu, avoiding the replacement of parts, and effectively reducing the operation and maintenance cost.

此外肯德基門常出現的一個問題便是下沉，原因有很多種，而且根據不同材質、款式的門，調整方法也不一樣。以鐵管焊接防盜門為例，具體調整方法有：

In addition, a common problem of KFC doors is sinking. There are many reasons, and the adjustment methods are different according to different materials and styles of doors. Taking the iron pipe welded anti-theft door as an example, the specific adjustment methods are as follows:

如果是門鉸鏈上的螺絲松動造成的，那就可以在門往上托起的情況下緊固螺絲，可以先把門的所有螺絲都擰松了，然后把門托起到合適的高度，再把所有螺絲都緊固。

If it is caused by the loose screws on the door hinge, you can tighten the screws when the door is lifted up. You can loosen all the screws of the door first, then lift the door to a proper height, and then tighten all the screws.

如果是門鉸鏈本身質量不好，材質較薄，在門的重力作用下鉸鏈變形的話，那么就直接換一副質量好點、材質較厚的鉸鏈即可。如果門框本身有些變形，那修復起來就比較麻煩了，可以叫物業或其他人員來修。

If the door hinge itself is poor in quality and thin in material, and the hinge is deformed under the gravity of the door, it can be directly replaced with a pair of hinges with better quality and thicker material. If the door frame itself is deformed, it will be troublesome to repair. You can call the property management or other professionals to repair it.

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