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How to Replace Door Locks
The first line of defense is your door lock. It can stop unauthorised access into your home. Locks might need to be replaced due to signs of wear and tear or other events like moving into a new residence 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 allow you to purchase the correct-sized lock.
Deadbolt
If you want to make sure your door is secure against criminals, it's a great idea to install a deadbolt. When the bolt is extended into the strike plate of the doorframe it makes it more difficult for an intruder to get through the door. A single cylinder deadbolt can be activated using keys on the exterior side and a thumb turn part on the inside. Deadbolts will only work when it is properly installed.
It is first necessary to find out if the door has a hole that is suitable for a deadbolt or if you need to drill it. Mark the location of the hole for the deadbolt on top of the door using the template that came with the lock installation set. Then, you can use your tape measure to determine the height the deadbolt should be. Then, mark the high point on the outside of the door. Use the speed square to draw an even line across the mark you made for the bolt hole.
Then, use a drill to drill this spot until the hole extends to the opposite side of the door. This may take a while. dartford upvc door locks replacement and edge of the door to smooth it. It's also an excellent idea to paint or stain the door at this point.
Once the door is ready take off any screws visible on the deadbolt. This will reveal the front and back assembly of the deadbolt and also the bolt inside. Then, unscrew the bolt and replace it with a new one that matches your door hardware. The bolt is typically connected to a set plate which you'll have to remove. Once this is done it is time to chisel the area for the strike plate on the door frame.
If your strike plate is out of alignment it could be because the previous installer failed to mortise it properly, or a weatherstripping has changed the strike's position. To fix this issue it is necessary to remortise the strike plate and the deadbolt. Once this is completed check the deadbolt by closing it and locking it. Make sure that the bolt is extending into the strike plate then test the key to ensure it closes and opens easily.
Knob
If a door knob wears out it could make your business or home less secure. It can make it more difficult to open or close the door, so it's an ideal idea to replace the knob. Replacing a knob is a relatively easy DIY project and shouldn't take more than 30 minutes to complete. Use a screwdriver or pliers to remove any old knobs or handles. Be careful not to harm other parts of the door.
Spray WD-40, or a different dry lubricant, on the mechanism of your door knob before you begin. This will help the new lock slide smoothly as you turn it. It's important to use a quality knob and handle that is compatible with your current doors to ensure that the lock is operating properly. If you don't already have a doorknob that matches and handle, you'll need to purchase a replacement.
Before you begin replacing the knob, examine the old knob to determine what screws are that are holding it in place. If there aren't any screws, you can use a screwdriver to insert between the cover plate and the hidden screws plate and remove it.
After removing the old knob examine it for indications of damage and rust. If the knob is damaged or has dents or marks, you'll have to clean it. Otherwise it shouldn't need any major work.
Install the new knob. You must first study the two knobs to make sure that you are choosing the right one for the door. You'll need to choose one with an extending rod that will interlock with the rod mechanism of the other knob. Once you've put the new knob into the hole then slide it into the latch.
Test the spring by pressing it repeatedly. The latch should spring back up every time. Install the second knob and lock it to the rod mechanism of the first knob. Thread the long screws of the doorknob's interior through the holes for cylinders on the exterior knob and secure it in the knob's position.
Latch
A latch is a piece of metal that extends through the door jamb to keep it shut. The latch can be operated by a handle or knob on the inside of the door, or a thumb-turn on the exterior. The latch can be secured by deadbolts to prevent intrusions from piercing the glass of the door. It also protects against accidental or intentional closing of the door by pets or children. A latch can be installed using single cylinder deadbolts or a double cylinder deadbolt, according to the security level you prefer.
Installing a latch follows the same steps as installing a deadbolt, but there are a few differences. To make sure that the new lock will fit, first determine the setback of the doorjamb using a tape measure. The setback is the distance from the edge of the doorjamb, to the center of the hole for the latch faceplate. The standard setback is 2 3/8 to 2. 3/4 inches. If you have a larger setback, you may have to purchase a longer latch from a hardware store or locksmith.
Then, you'll need to drill a hole for the latch plate at the edge of the doorjamb. Utilize a chisel to chisel the latch mortise. Make sure that the depth is enough to allow the faceplate to be flush with the doorjamb. Place the strikeplate on the floor to ensure it's placed correctly.
If the strike is placed too high, the door may be pushed into or pressure applied to it with a crowbar or tire iron. This could cause the doorjamb's to crack. To correct this, the strike could be reduced by drilling a second hole in the doorjamb and cutting out the core of the old hole.
The final step is to mount the new strike plate, which can be done by screwing it in place over the existing screw holes. Then apply wood putty to cover the holes from the previous screws and the bolt hole that won't be used. When the putty is dry then sand it to a smooth finish for a professional finish.
Strike
The piece of metal that is inserted between the latch and deadbolt when the door is shut is an electric strike. It is a vital component of a lock's overall security, as it seals the door and offers additional resistance to force or kicks applied to the door. If a door is equipped with an electronic strike, it can be opened by using an entry key and a control unit that controls its electrical impulses.
In the past, putting in an electronic strike required cutting a portion of a doorjamb to let the latchbolt of a cylindrical lock from the pocket inside the strike. This is a drawback in regards to the appearance of openings, and it also exposes the mechanism of the latchbolt and keeper to any unauthorised users.
Recently, several electric strike manufacturers have developed a new type of electric strike called the "No Cut" strike that doesn't require a cutout in the doorjamb to operate. These strikes utilize a special design to allow the keeper and latchbolt to slide into the strike pocket without damaging the doorjamb faceplate.
The strike is equipped with an internal ramp that raises the latchbolt and keeper when it receives an electrical impulse from a controller or reader. The retraction of the keeper and latchbolt raises them on the ramp, which locks the door. When the door is closed the deadbolt remains in place and the latchbolt retracts in the keeper.
Installing an electronic strike is a straightforward process, particularly when you're replacing an older strike. However, if you're upgrading to an electric strike to use with an access control system, you'll need to make sure your new system is compatible with the model of lock you have installed. Also, you must make sure that the strike is properly wired to your access control system and that it is designed to operate in a fail-safe manner.
One way to protect against access by unauthorized persons is to upgrade the strike on your doors to a robust strike plate. The plates are made of up to six screws of three inches instead of the standard two screws of three-fourths of an inch. These screws are longer, making it more difficult for people to break the frame and then reach inside to turn the thumb turn piece of a single cylinder deadbolt.