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How to Do Your Own Lock Repair When your locks become faulty You can attempt to fix them yourself or hire an professional locksmith. Repairing locks can be a challenge, and the wrong approach may cause more damage. You should first check to see if the problem is caused by dirt or dust. This is usually resolved by applying some graphite spray or silicone based oil. 1. Door Handle or Knob Lock Door knobs and handles could get loose in time, which can result in a jiggly door handle, or a knobs that are difficult to open. It is essential to fix loose door knobs because they're not just annoying, but can compromise the security of your building. A doorknob that is loose is easy to repair. There are many ways to fix this dependent on the type of lock your door comes with. Certain systems have mounting screws that are easy to access, whereas others use a backplate that obscures the screws holding it together. If your door is the one that is hidden, the process may be more complicated. The majority of interior doorknobs have a tiny screw referred to as a setscrew on the inside of the knob, which prevents it from sliding over the spindle. This is a part of the latch assembly. If yours is not jiggly, it could be due to a small screw called a setscrew located inside the knob that blocks it from sliding over spindle. You can utilize an flashlight to locate the set screw and then tighten it using an Allen wrench. Once it's tightened up, turn the knob to test if it no more appears to be as jiggly. If the knob is moving, it could be because the screw that sets it hasn't been positioned correctly. To make sure the screw is positioned correctly, look for a small, identical button on the spindle. Place the knob on the spindle after pressing the button using the screwdriver with a flat head. As you do this, the knob should click into place which indicates that it has been positioned properly on the spindle. After ensuring the set screw is properly positioned and tighten it once more to ensure that the knob or handle is in place. If this doesn't solve the issue, you might need to remove the knob from the backplate and check for loose or missing screws. You will need to replace the screws in this case before you can replace the knob or handle. If you're not comfortable with this kind of repair, contact an expert who is skilled in damaged lock repair. 2. window door lock repair won't turn in the lock. There are a variety of reasons the lock key might stop turning. One of the most common reasons is that the pins in the cylinder are worn down. This means that they no longer have a proper shape that allows the sliders or wafers to be moved by the key. In this case spraying the lock with silicone-based lubricant or graphite spray will coat the pins and enable them to move. If the issue is much more serious and the key is been bent out of shape, it may be necessary to have it professionally straightened. A professional locksmith will use a special tool that has an angled edge that fits into the groove at the tip of the key. This type of tool isn't readily available at hardware stores, however you can purchase a kit that includes the proper tools online or at a locksmith shop. A soiled or dirty lock is another possibility. Over time, dust can accumulate in the lock the cylinder, which may cause the pins and springs to seize up. In this instance, you'll have to spray the lock with graphite spray or a lubricant made of silicone to clean it out and then reposition the pins back to their original position. If the key itself is damaged, it could be a problem. In time, repeated use may wear out the grooves on a keys. This could result in the key not being able to fit in the cylinder. It is essential to check regularly to make sure that the key fits properly. Locks can freeze in the winter months. This will stop the pins and springs from moving when a key is inserted. This can be a frustrating problem, but it is usually quite simple to solve by warming up the lock using hot water and using the lubricant again to re-lubricate. If the lock is damaged beyond repair or has frozen, it will need to be replaced. 3. The lock isn't turning If you've had locks that don't turn and isn't able to be opened, it can be extremely frustrating. If it happens frequently you might consider getting locksmiths to check it out and see if they are able to assist. This isn't always needed, as some problems can be solved by yourself. The key won't turn inside the lock if it is damaged. This could happen if you've lost your keys or it's broken in the lock. Instead of trying to pull it out of the lock, which could cause the broken piece of the key to move further inside the mechanism, which could cause the issue to get worse Try using needle-nosed pliers to remove it from the lock. Be careful not to harm the lock by tearing off any part of the broken key with the pliers. It's possible that your lock isn't aligned properly, which can cause the door to not latch correctly. If you have an additional lock key, you can try it to ensure that the lock is working correctly. If you discover that the lock is not correctly aligned, tightening screws around the strikeplate could solve the issue and let the lock to function normally. A lock might not rotate because of dirt or dust. Using an graphite spray or silicone-based lubricant will solve this issue by coating the pins within the lock so that they are able to move up and down as normal. You should avoid using products that contain oil, like WD-40, because they can cause more obstructions in the future. It is important to remember that some keys simply won't fit into all locks. If this is the case, you'll need to have a new key manufactured by a local hardware shop. 4. The Cylinder is rotating. Hairpin vortices may form when a cylinder is rotated within a confinement. These vortices can exert significant forces on the rotating cylinder. The forces are proportional to the radius of curvature that is dimensionless x and the confinement factor k. The simplified model presented here explains the impact of these parameters on the force and torque on the cylinder that is confined. The cylinder's tube, head and main body are composed of aluminum alloy. If you are able insert your key and turn it but the lock is still rotating the cylinder could be faulty. Rekeying the lock could solve the issue. You can buy kits for this purpose on the internet or in most big box stores.