How to Replace Door Locks
Door locks are your primary protection against unauthorised entry into your home. Locks might need to be replaced because of signs of wear and tear, or other situations like moving into a new house or a burglary.
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 is ideal way to secure your door against intruders. The bolt extends into the strike plate that is on the doorframe when locked, making it more difficult for a burglar to gain entry through the door. A single cylinder deadbolt can be activated using an exterior key on the side and a thumb turn piece on the interior. A deadbolt will only work if it is installed correctly.
It is first necessary to find out if the door has an existing hole for a deadbolt, or if you have to drill it out. With the template included with your lock installation kit, mark the location of the hole for the deadbolt on the door's surface. Then, use your tape measure to determine the height the deadbolt should be. Then, mark this high point on the outside of the door and use a speed square to draw an even line across the mark you made for the bolt hole.
Then by using a power drill, bore out the hole until it is on the opposite side of the door. This could take a while. Sand the hole and the edge of the door to make it smooth. At this point, it's a good idea to paint or stain your door.
Remove any visible screws from the deadbolt. This will reveal the back and front assemblies of the deadbolt, as well as the internal bolt. Then, remove the bolt and replace it by a new one to match the door hardware. You will need to unscrew the bolt from a setplate. After that, you'll have to chisel the surface of the door frame to accommodate the strike plate.
If your strike plate is not in alignment, it could be because the previous installer didn't mortise it correctly or a weatherstripping has changed the strike's location. To correct this issue it is necessary to remortise both the strike plate and the deadbolt. Once this is completed, test the deadbolt by closing and locking it. Test the deadbolt by closing it and locking it once the bolt has been extended into the strike plate.
Knob
If a door knob wears out, it can make your business or home less secure. It can make opening or closing the door more difficult, so it's an ideal idea to replace it. Replacing knobs is an easy DIY task that should not take more than 30 minutes to complete. You can use a screwdriver as well as pliers to remove the knob or handle Be careful not to damage any of the other components on the door.
Before you begin, you'll want to spray WD-40 or some other dry lubricant on the mechanism of the door knob. This will allow the lock to move effortlessly when you turn it. To ensure that it operates properly, it's important to choose the knob and handle that match the doors you already have. If you don't have a match then you'll have to purchase a replacement doorknob and latch plate.
Before you begin replacing the knob, take a look at the knob that was previously used to determine which 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 pop it off.
After you have removed the knob take it apart and look for evidence of damage or rust. It's important to clean it up if there are any marks or dents however you don't need to do anything when the knob is in good condition.
replace lock on upvc door to install the new knob. Begin by examining the new knobs to ensure that you're picking out the right one for your door. You'll want to pick one that has an extending rod that is designed to lock with the second knob's rod mechanism. After you've placed the new knob into the hole and then put it in the latch.
Test the spring by pressing it down repeatedly. The latch should spring up each time. Install the second knob and secure it to the rod mechanism of the first knob. Thread the long screws of the interior doorknob through the holes for cylinders on the exterior knob and secure it in its place.
Latch
A latch is a piece of metal that extends through the doorjamb to hold it shut. It is operated by a knob or handle on the interior side of the door or by a thumb turn on the exterior side of the door. The latch can be secured using deadbolts to stop thieves from breaking through the door's glass. It can also guard against the accidental or deliberate closing by children or animals. It is possible to install an entry point with either a single-cylinder deadbolt, or a double-cylinder deadbolt based on the level of security.
Installing a deadbolt is exactly the same as installing a latch, but there are some differences. To make sure that the new lock will fit first, you must measure the setback on the doorjamb with an instrument such as a tape measure. The setback is measured from the edge of doorjamb up to the middle of the hole for the latch plate. A standard setback is 2 3/8 to 2 3/4 inches. If your setback is greater it is possible to purchase a latch that is larger from a hardware or locksmith store.
The next step is to drill an edge bore hole in the doorjamb for the latch plate. Use a chisel for chiseling out the latch mortise, making sure it's deep enough for the faceplate of the new latch to sit flush with the doorjamb. Tape the strikeplate in place to ensure it is positioned properly.
If the strike is too high, you could kick the door in or apply pressure using the tire iron or crowbar. This can also cause the doorjamb to break. This can be repaired by drilling a new hole through the doorjamb, then cutting the core from the hole that was previously made.
Installing the new strike plate is the final step. This can be accomplished by screwing the new plate over the screw holes that are already in place. Use wood putty then to fill in any existing screw holes or bolt holes which aren't going to be used. Once the putty is dry then sand it to a smooth finish for professional results.
Strike
The metal piece that engages the deadbolt and latch when the door is closed is an electric strike. It is a vital component of a lock's overall security, since it helps keep the door shut and offers additional resistance to force or kicking applied to the door. If a door is fitted with an electronic strike, it will be opened only with a key and the control unit that regulates its electrical impulses.
In the past, installing an electronic strike required cutting a portion of a doorjamb in order to release the latchbolt of a cylindrical lock from the pocket inside the strike. This modification is not only ugly and unattractive, but also exposes the latchbolt mechanism and the keeper to intruders.
Recently, several electric strike makers have come up with an innovative type of electric strike, dubbed the "No Cut" strike that doesn't need cutouts 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 has an internal ramp that raises the latchbolt as well as the keeper when it receives a signal from a reader. The latchbolt and keeper are lifted higher up the ramp by the retract. When the door is shut the deadbolt remains at a lower position and the latchbolt retracts into the keeper.
Installing an electric strike can be a simple process, especially when you are replacing a strike on an existing 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. You will also have to ensure that the strike is properly connected to your access-control system and is set up to function in a fail-safe way.
Upgrade your strike plates to heavy duty strike plates to block unauthorised entry. The plates are made of up to six screws of three inches instead of the usual two screws of three-fourths inches. These screws are longer and make breaking the frame to reach the thumb turn piece on a single deadbolt cylinder more difficult.