One: After opening the anti-theft door with the key, the key cannot be removed.
1. If you are unable to remove the key from the door, you can apply a small amount of machine oil into the keyhole. Gently turn the key to fully lubricate the lock. Repeatedly shake and pull the key out, and if necessary, use a wrench or pliers to remove the key. It is recommended to apply machine oil to the key for reuse.
2. If the key remains stuck in the lock due to prolonged use, apply oil and allow it to sit for a day to ensure proper lubrication. After removing the key, remove any rust from the top. Replace or clean the key.
3. If the key is stuck due to the misalignment of the lock mechanism, gently up and down move the key to relieve the tension. In this case, there is a risk of card damage upon subsequent use, so it is necessary to remove and replace the lock and key.
Two. What to do if the key for the anti-theft door cannot be removed?
If the key for the anti-theft door cannot be removed, it is usually because the key is not inserted into the correct position. Sometimes, this is due to misalignment of the anti-theft door lock. After returning the lock to its original position, when part of the lock is exposed, you can use one hand to press it, and then use the other hand to move the key to remove it.
Additionally, leather care agents can be used. Spraying them on keys makes them easier to pull out. Lubricants can also be used to fill the gaps in pencil shavings. For example, mechanical products like keys can sometimes get stuck. In this case, turn the key in the direction it can be tightened, then quickly turn it back and press firmly. After a full rotation, it should come out.
Three. How to handle a situation where the key for a burglar-proof door cannot be turned.
If this is the case, it is most likely due to the key not being properly aligned or the lock cylinder being misaligned. We simply need to allow it to return to its original position, and then, when the cylinder extends outward, we can press it in with our hand, and then use the other hand to remove the key. Alternatively, we can spray a lubricating and rust-removing agent into the lock cylinder, move the key, and then try to remove it.