Security door daily maintenance knowledge 1. After the protective film is removed, the door body is placed in the outdoor environment. Because the dust, oil and other contaminants adhere to the door body, the door body fades and loses the fresh light brightness. It is recommended that the user clean it once every certain period, and the cleaning method is used. 70% water mixed with 30% of the cleaning solution is placed in the sprayer, sprayed evenly on the door surface, and gently wiped with a soft cloth. 1. When the switch door has metal friction sound, drop a little lubricant on the door hinge or directly find a professional repairman. 2. When the door closing resistance is too large, apply a little oil to the movable bolt. 3. When the key cannot be fully inserted into the keyhole when opening the door, in the winter, first check whether there is ice in the keyhole. In other seasons, check if there are any foreign objects in the keyhole. And inform us of the situation in a timely manner. Second, the maintenance and maintenance of the security door Security door is very important for daily necessities. 1. Carefully fill the cement. On the one hand, the door frame and the wall body are effectively combined; on the other hand, the door body and the door frame are reasonably matched, and the invariable type is used for a long time. 2. It is very important to prepare for winter before the winter in China's alpine region. a. When the indoor and outdoor temperature difference is large, when the hot and cold air convection, the lock core will be damp. Therefore, before the winter, you can apply two drops of antifreeze oil. After the winter, add some gasoline to clean it. Never use vegetable oil as a lubricant. b. Under normal conditions, it is found that the lock cylinder is not flexible. Use a small amount of pencil to put it into the beverage straw, align it with the lock cylinder, and gently blow it into the lock cylinder to keep it lubricated. c. If you find that it is difficult to close the door, the general situation is that after the small tongue with the bevel is damp, it will produce rust spots that are difficult to see with the naked eye. You can use sandpaper or a little pencil to solve it easily.
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