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How to Replace Door Locks Door locks are your first protection against unauthorised entry into your home. Locks may require replacement due to signs of wear and tear or other circumstances such as moving into a new house or a break-in. You can determine the size of your cylinder by measuring the distance from the center of the knoblock cylinder to the adjustment screw. This measurement will help you buy the lock that is right for you. Deadbolt Installing a deadbolt can be a ideal way to secure your door against intruders. The bolt extends into the strike plate on the doorframe when locked, making it much more difficult for burglars to gain entry through the door. A single cylinder deadbolt can be activated with keys on the exterior side and a thumb turn part on the interior. A deadbolt will only work when it is properly installed. The first step is to determine if the door already has a hole for deadbolts or requires drilling. Utilizing the template included with your lock installation kit, mark the spot of the deadbolt's hole on the door's surface. Then, you can use your tape measure to determine how high the deadbolt should be. Then, mark this height on the edge of the door. You can then use a speed square to draw straight lines across the mark you made for the bolt hole. Then, use a drill to bore out this hole until it reaches the other side of the door. This may take a while. Then, sand down the hole and the edges of the door so that it is smooth. At this moment, it's a good idea to paint or stain your door. Remove any screws that are visible from the deadbolt. This will reveal both the front and rear assemblies of the deadbolt and its internal bolt. Then, remove the bolt and replace it with a new bolt that matches your door hardware. It is necessary to remove the bolt from a setplate. Once this is done then you need to chisel the area for the strike plate that is on the door frame. If your strike plate is out of alignment, it could be because the previous installer didn't mortise it correctly or a weatherstripping changed the strike's location. It is necessary to re-mortise your strike plate and perhaps even the deadbolt to fix the issue. After this is done check the deadbolt by closing and locking it. Test the deadbolt by closing and locking it after the bolt has been extended into the strike plate. Knob It could make your business and home less secure if the door knob is worn. It may make it difficult to open or close the door, so it's a good idea to replace the knob. Replacing a knob is a relatively easy DIY project and shouldn't take more than 30 minutes to complete. You can use a screwdriver or pliers to get rid of the knob or handle that was previously used Be careful not to damage any other parts on the door. Spray WD-40, or another dry lubricant, onto the mechanism of your door knob prior to you begin. This will assist the new lock to move smoothly when you turn it. It's essential to select the best knob and handle that matches your doors currently in order to ensure that the lock is operating properly. If you don't have a match you'll need to purchase a new doorknob and latch plate. To begin the replacement process, look at the knob or handle to see what screws hold it in place. If there aren't any screws you can use a screwdriver to wedge between the cover plate and the plate with hidden screws and then remove it. After you've removed the old knob, examine it for any signs of damage or rust. You'll have to scrub it up if there are any scratches or dents, but you shouldn't have to do anything major when the knob is in good shape. Install the new knob. Before you do that, look over the new knobs to ensure that you're picking out the right one for your door. You'll need to choose one with an extending rod that's designed to lock into the second knob's rod mechanism. After you've placed the new knob over the door's hole carefully slide it into the latch. Test the spring by pressing it down repeatedly. The latch should pop up every time. Next, install the other new knob and interlock it to the rod mechanism on the first knob. Then, thread the other long screws from the knob's interior through the hole in the cylinder of the exterior doorknob and secure it. Latch A latch is a metallic piece that extends into the doorjamb to secure it closed. It is operated by a handle or knob on the inside of the door or by a thumb turn on the outside side of the door. Deadbolts can be used to secure a latch and stop burglars from piercing the glass of the door. It also helps protect against the accidental or deliberate closing by animals or children. It is possible to install the latch using either a single-cylinder deadbolt or double-cylinder deadbolt based on the level of security. Installing a latch requires the same steps like installing a deadbolt however there are some variations. First, measure repairmywindowsanddoors of the doorjamb with a tape measure to be sure the new lock will fit. The setback is measured from the edge of the doorjamb up to the middle of the hole for the latch plate. The standard setback is 2 3/8 to 2. 3/4 inches. If you have a larger setback, you may need to purchase a longer latch at a hardware store or locksmith. The next step is to drill an edge bore hole in the doorjamb for the latch plate. Use a chisel and cut the mortise of the latch. Make sure that the depth is enough for the faceplate to be flush with the doorjamb. Place the strike plate in place to ensure that it is positioned correctly. If the strike is too high, you can knock the door down or apply pressure with a tire iron or crowbar. This can cause cracks to the doorjamb. This can be corrected by drilling a new hole in the doorjamb and then cutting the core from the previous one. Installing the new strike plate is the last step. This can be accomplished by screwing the new plate into the screw holes that are already in place. Use wood putty then to fill in any old bolt holes or screw holes which aren't going to be used. Once the putty has dried you can sand it until it has a smooth finish. Strike The piece of metal that is inserted between the latch and deadbolt when the door is closed is an electric strike. It is an important part of the overall security of a lock because it seals the door and provides extra resistance to force or kicking applied to the door. If a door has been equipped with an electric strike, it can only be opened by a key or the control unit that governs its electrical impulses. In the past, putting in an electronic strike was as simple as cutting a portion of a doorjamb in order to let the latchbolt of a cylindrical lock from the pocket within the strike. This modification is not only ugly, but also exposes the mechanism of the latchbolt and keeper to uninitiated users. Recently, several electric strike makers have come up with a new type of electric strike dubbed the "No Cut" strike that doesn't need cutouts in the doorjamb to function. These strikes utilize a special design to allow the keeper and latchbolt to slide into the strike pocket without marring the doorjamb faceplate. The strike is equipped with an internal ramp that lifts the latchbolt and keeper whenever it receives an electrical impulse from a controller or reader. The retraction of the keeper and latchbolt causes them to rise on the ramp, thereby locking the door. When the door is closed, the deadbolt remains in place and the latchbolt is retracted into the keeper. Installing an electric strike can be an easy task, especially if you are replacing an existing strike door. If you are upgrading an existing access control system to an electric strike, you need to make sure that the new system is compatible. Also, you must ensure that the strike is wired to your access control system and is set up for fail-safe operation. One way to protect against intrusions by thieves is to upgrade the strike on your doors to a robust strike plate. These plates use four to six three-inch screws instead of the two, three-fourth inch screws that are typically used in regular strikes. The longer screws make it harder for people to break the frame and reach inside to turn the piece that turns the thumb of a single deadbolt cylinder.
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