How to Replace Door Locks
Door locks are your primary protection against unauthorised access to your home. The locks may require replacement due to signs of wear and tear, or other situations 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 enable you to purchase the correct-sized lock.
Deadbolt
Installing a deadbolt can be a ideal way to secure your door from burglars. When the bolt is extended into the strike plate of the doorframe, it makes it harder for an intruder through the door. A single cylinder deadbolt can be activated using a key on the exterior side and a thumb turn device on the inside. Deadbolts are only effective only if it's correctly installed however.
You will first need to determine whether the door already has an existing hole for a deadbolt, or if you'll need to drill it. Using the template that comes with the lock installation kit mark the location of the deadbolt hole on the door's surface. Then, you can use your tape measure to determine the height the deadbolt needs to be. Mark this height on the door edge, and then use speedsquares to draw a straightline across the mark you made for the bolt hole.
Then, use a drill to drill this hole until it is on the other side of the door. This may take some time. Sand the hole and the door edge to make it smooth. It's also a good idea to paint or stain the door at this point.
Once the door is ready take off any screws that are visible on the existing deadbolt. This will reveal the front and back assemblies of the deadbolt, and also the bolt inside. 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. Then, you'll need to chisel the door frame for the strike plate.
If your strike plate is out of alignment it could be because the previous installer did not mortise it correctly or a weatherstripping has changed the strike's location. You'll need to re-mortise the strikeplate and possibly even the deadbolt to fix the issue. Once this is completed check the deadbolt by closing and locking it. Test the deadbolt by closing and locking it once the bolt has been extended into the strike plate.
Knob
It can make your home and business less secure if the door knob is damaged. It can make opening or closing the door more difficult, so it is a good idea for you to replace the knob. Replacing a knob is a relatively easy DIY task that should not take longer than 30 minutes to complete. You can use a screwdriver and pliers to take off the old knob or handle, but be careful not to scratch any of the other components on the door.
Spray WD-40, or a different dry lubricant, on the mechanism of your door knob before you begin. This will assist the new lock to slide smoothly as you turn it. To ensure that it operates properly, it's important to choose the right knob and handle to match the doors you already have. If you don't have a doorknob that matches then you'll have to buy a replacement.
Before you begin replacing the knob, look over the knob you replaced to see what screws are holding it in place. If there are no screws then you can use the screwdriver to secure the cover plate into the screws plate hidden behind it.
After upvc door locking mechanism replacement 've removed your knob that was previously used, look it over for any signs of rust or damage. If the knob has any marks or scratches, you'll have clean it. Otherwise, it shouldn't require any major work.
It's time to install the new knob. Begin by examining the new knobs to ensure you're selecting the correct one for your door. You'll need to pick one with an extender rod that will interlock with the rod mechanism of the other knob. After you've placed the new knob in the hole, slide it into the latch.
Thread the latch plate screws down, then test the spring by pressing down repeatedly. The latch should spring up each time. Install the second knob, and lock it to the rod mechanism of 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 shut. It is operated with a knob or handle on the inside of the door, or a thumb turn on the outside side of the door. A latch can be secured using a deadbolt to keep intrusions from piercing the glass of the door. It also offers protection from the accidental or deliberate closing of the door by pets or children. You can install a latch with either a single-cylinder deadbolt, or a double-cylinder deadbolt depending on the level of security.
Installing a deadbolt is exactly the same as installing a latch, however, there are some distinctions. First, measure the setback of the doorjamb using an instrument to make sure the new lock will fit. The setback is measured from the edge of doorjamb all the way to the center of hole for the latch plate. A typical setback is 2 3/8 to 2 3/4 inches. If your setback is higher than that, you might need to purchase a latch that is larger from a locksmith or hardware store.
The next step is to drill an edge bore hole through the doorjamb for the latch plate. Utilize a chisel to smooth out the mortise for the latch, making sure it's deep enough to allow the faceplate of the new latch to sit close to the doorjamb. Put the strike plate into place to make sure it is positioned correctly.
If the strike is placed too high, the door can be pushed into or pressure put on it with a crowbar or tire iron. This can also cause the doorjamb to break. To remedy this, the strike can be reduced by drilling a second hole in the doorjamb and chiseling out the center of the old hole.
Installing the new strike plate is the last step. This can be done by screwing the new plate over the existing screwholes. Then apply wood putty to fill in the holes from the previous screws and the bolt hole that won't be used. After the putty has dried, sand it to a smooth finish.
Strike
The piece of metal that connects 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 keeps the door shut and provides extra resistance to force or kicks applied to the door. If a door is equipped with an electric strike, it can only be opened by a key or the control unit that controls its electrical impulses.
In the past, installing an electronic strike was as simple as cutting a portion of a doorjamb to release the latchbolt of a cylindrical lock from the pocket within the strike. This is a drawback when it comes to the appearance of openings as well as exposing the keeper mechanism and latchbolt to unauthorized users.
Recently, a number of electric strike manufacturers have developed a new type of electric strike dubbed the "No Cut" strike that doesn't need cutouts in the doorjamb to operate. The strikes have a unique design that allows the latchbolt and keeper to slide into the pocket without damaging the faceplate of the doorjamb.
The strike has an internal ramp which lifts the latchbolt and keeper whenever it receives an indication from the reader. The keeper and latchbolt are pushed higher up the ramp by the retract. When the door is closed, the deadbolt stays at a lower position and the latchbolt retracts into the keeper.
Installing an electric strike is an easy process, particularly in the case of replacing a strike on an existing door. However, if you're upgrading to an electric strike for an access control system, you will be required to ensure that the new system is compatible with the type of lock you've installed. Also, you must make sure that the strike is properly wired to your access control system and that it is configured for fail-safe operation.
One method to guard against unauthorized access is to upgrade the strike on your doors to a high-quality strike plate. The plates are made of up to six screws of three inches instead of two screws of three-fourths of an inch. These screws are longer, making it difficult for someone to break the frame and then reach inside to turn the thumb turn part of a single deadbolt cylinder.