Doors that close effortlessly with a slight movement of the hand add solidity to the car and provide additional comfort for the driver and passengers. Smooth closing is ensured by special mechanisms - closers. These devices can be standardly installed by manufacturers in premium cars. However, owners of less expensive vehicles can independently install universal type door closers.
What is a door closer in a car
The car door closer ensures that the vehicle is securely closed. Thanks to the installation of the mechanism, the owner will not have to repeatedly open and close the doors if they do not fit tightly to the body. If the force applied by a person was not enough to close the door, the device will complete the process on its own. For example, small children do not always cope with the heavy and bulky doors of SUVs. In this case, the closer mechanism will help them.
Universal closer for cars from Slamstop.
Also, the car closer will provide soft, smooth and silent closing. The driver will no longer have to ask passengers to quietly slam the door. If the mechanism is installed in the trunk door, then to close it you only need to lightly press the door. Then the device will complete the task on its own.
Benefits of using the design
It becomes clear that installing a door closer in a car has many advantages, including:
- dense adjoining of doors to a car body without application of efforts;
- extending the life of door mechanisms;
- increased comfort;
- better heat and noise insulation;
- protection from dust and moisture.
Another advantage is the compact size of the device: the installation of a door closer will not be noticeable in the cabin.
What cars are door closers installed on?
Despite the convenience of the system, door closers are not installed on all cars. Most often, the mechanism is used in premium cars from manufacturers such as Mercedes, Audi, BMW and other major brands.
If the car does not have a standard door closer, the car owner can install it himself. In this case, you should purchase a universal mechanism suitable for any vehicle model.
Principle of operation
The door closer starts working the moment the door closes to the first latch of the car lock. The door position sensor allows you to determine whether the car is closed or not. If there is a gap between the door and the body, an electrically driven sensor will operate, after which the closer, using a special cable, will pull the door until it is completely closed.
If problems arise in the operation of the door closing mechanism, reliable operation of the door closers cannot be fully ensured.
Design and types of car door closers
The mechanism that ensures tight closure consists of several main elements:
- a sensor that determines the position of the door;
- an electric drive that ensures the door is pulled;
- a control unit that receives a signal from the sensor and sends a command to the electric drive.
On modern cars you can find two main types of door closing mechanisms.
- Electric is the most common option. It, in turn, can be based on:
- a worm gearbox, which is installed on SUVs and crossovers instead of standard gas stops;
- clamping mechanism (much more common).
- A hydraulic mechanism that includes an autonomous hydraulic system with a pump, electronic pressure regulation and a complex actuator. This device It is very expensive, so it is installed only on expensive sports cars.
Door closers can also be classified into:
- universal;
- created for the car model (installed standard at the factory).
Universal devices can be installed on any vehicle, regardless of its make and model.
What is a pinless closer
A pinless door closer can also be installed on almost every car. To attach the mechanism, you do not need to cut additional holes in the doors: it is installed in a standard lock. In this case, the mechanical part of the lock is replaced with an electrically driven device. Then the 12 volt power is connected. If the installation is done correctly, the pinless door closer will provide the owner with smooth closing of the doors.
The pinless closer is installed in the standard hole of the lock. Door closer for cars – convenient device, which is installed as standard on premium segment cars. If the car does not belong to this class, the car owner can always install a universal door closer himself, which will also ensure that the doors close smoothly and tightly.
Contrary to popular belief, door closers are a fairly old invention - they were invented at the end of the 19th century. Authors of the prototypes modern devices One can count three mechanical engineers at once: Francis Richards, Lewis Norton and Eugene Blount. Scientists worked independently to create devices, and in 1873 Richards presented the world with the first model spring closer. Seven years later, Norton invented a pneumatic model, and nine years later, through the efforts of Blount, a mechanical-hydraulic device was born.
Technical characteristics and operating principle
Classic spring door closers consist of a lever rod and a housing with a mechanism. It is the mechanism that is responsible for slow closing door leaf and consists of a cylindrical capsule with a system of thin hydraulic channels, a spring block and a piston. When opening the door, the force, thanks to the lever rod, is transferred to the piston, which, in turn, begins to move along the cylinder and compress the spring. As soon as the impact on the door stops, the piston stops exerting pressure on the spring and it begins to gradually unclench. The speed at which the spring returns to its original position determines the speed at which the door closes.
To increase or decrease this indicator, it is enough to change the cross-sectional size of the hydraulic channels through which the oil moves. This can be achieved using adjusting screws located at the end of the body and allowing the blade to be adjusted depending on external temperatures and personal preferences. The most technologically advanced door closer models are equipped with special valve, allowing you to hold the movement of the canvas, starting from an angle of 70 degrees and up to its complete closure. Moreover, starting from 15 degrees, a fairly noticeable pressure is applied, which ends with a soft, but at the same time powerful slam. This allows the door leaf to overcome air resistance, as well as the force of the seal and latch.
IN modern devices Instead of outdated spring technology, a rack-and-pinion or cam system is more often used. The basis of the first design is a hydraulic circuit, and the torque is transmitted using a mechanical rack and pinion transmission. Such devices are capable of ensuring smooth movement of the web over a wide range and have stronger pressure and powerful overcoming of the resistance of the seal and latch. Cam technology also ensures that the door closes more tightly and has a high efficiency compared to other mechanisms.
Kinds
In the modern door hardware market, door closers are presented in a wide range. Models are classified according to a number of criteria, the most determining of which is the method of transmitting torque. Based on this feature, there are two types of devices.
Lever Models
In such devices, torque is transmitted by a folding lever. This is the most common and budget type of mechanism, providing reliable and durable articulated rods. The only drawback of knee devices is the low level of protection against vandals and not very aesthetic appearance, and if you can still come to terms with the last point, then the likelihood of intentional damage to the device is an acute problem and sometimes forces you to abandon the use of these simple and proven mechanisms in favor of more secure models.
With sliding channel
This type of device is less susceptible to attacks by vandals, which allows it to be used more often in in public places And various kinds institutions. The transmission of force in such devices is carried out by means of a sliding rod, the lever of which moves along the channel. Due to the absence of angular structures, the models are more aesthetically pleasing and, unlike the previous type, do not have vulnerable protruding elements. In addition, the channel can be easily equipped with an elastic limiter that controls the opening of the door leaf.
An equally important feature by which closers are divided is the location of their installation. According to this criterion, four categories of closers are distinguished.
Upper
Devices with this method of placement belong to the largest group and are widely used in residential premises, public buildings and production workshops. Installation of the working housing is carried out on the door itself or above it and depends on the design of the door system and the model of the device. The devices can have both a gear and a cam design, and operate on both a sliding and lever rod. The advantages of overhead door closers are their wide consumer availability and simple installation. The disadvantages include the need to make holes in the door or wall, visual clutter of the door leaf and the risk of ruining the design of the room.
floor standing
Such models are completely invisible, which is due to the absence of levers that force the axis to move. In fact, the door leaf is located directly on the axis itself, which, in turn, imposes certain restrictions on the scope of their use: such closers can be installed on doors whose weight does not exceed 300 kg. The devices are widely used on plastic and wooden internal doors installed in cinemas and shopping centers.
Hidden
These devices are intended for installation on door systems, where the visual presence of the device should be as small as possible. Hidden models, in turn, are divided into two types: models with sliding rods and closer loops. The first in their design are not much different from their overhead counterparts, however, they are miniature in size and are located in the niche of the door or in the striker of the door frame. The advantages of built-in devices include the high strength of the mechanism and long term services. Among the shortcomings, they note the need to violate the integrity of the door and frame during installation, as well as the inability to operate in too heavy and oversized door systems.
Loop closers are made in the form of a miniature device, the entire mechanism of which is located inside the case door hinge. The main advantage of the devices is the absence of the need to hammer and drill the door, which makes it possible to widely use models on glass sheets. The closer is mounted on the principle of a conventional door hinge and is absolutely not noticeable during visual inspection. The disadvantages include the impossibility of using on heavy overall systems, as well as the exactingness of observing the installation rules.
The door must be hung using building level, otherwise it will be difficult for the closer to control the skewed structure. Closer hinges are widely used in room doors and have proven themselves to be very convenient device in homes with small children. In addition, door closers are well suited for doors equipped with magnetic and electric locks, due to the absence of the need to overcome the resistance of the latch and seal.
Specialized devices
This category of door closers includes models for sliding and sliding interior systems, as well as sliding doors. In their design, the devices resemble rod-type furniture closers, but differ from them in size and the initial force created. Installation of devices can be done either in a box or in a canvas, and consists of forming holes of the required diameter at the ends of the box or door and then placing the device in them.
Criterias of choice
When choosing door closers you should pay attention Special attention device power. This criterion entirely depends on the size and weight of the door leaf, as well as on the intensity of traffic. In some cases with heavy weight door design and high cross-country ability, it is more advisable to install two door closers. This will distribute the load between devices and significantly extend the service life of each of them. The forces developed by the closers are clearly regulated by the strict European standard EN1154.
In accordance with the standards of this document, seven power classes of devices are identified, where first class products have the lowest performance and are capable of controlling a web no more than 75 cm wide and weighing up to 20 kg. Models of the second class can easily cope with a door of 85 cm, weighing up to 40 kg. The third class is limited to values of 95 cm by 60 kg, and products of the fourth class must be chosen if the width of the canvas does not exceed 110 cm and it weighs no more than 80 kg. The next three classes - EN5, EN6 and EN7, include particularly powerful models for large and heavy doors, the maximum permissible parameters of which are 125, 140 and 160 cm in width, and 100, 120 and 160 kg in weight.
It should be noted that in addition to focusing on the maximum parameters of the door, external factors must also be taken into account. For example, when choosing a door closer for street door, which has a width of more than 125 cm and is exposed to side winds for a long time, you should opt not for the fifth class, as required by the standard, but purchase a model of the sixth or even seventh class. The same should be done in situations where the width of the canvas corresponds to one class, and the weight to another: in such cases, it is necessary to ensure a safety margin and choose the higher of these two classes.
An equally important factor when choosing devices for entrance group is their frost resistance. The modern market offers a huge selection of models that can withstand low and high temperatures in the range from -45 to +70 degrees. And the last sign that is worth paying attention to is the appearance and color of the model. At the time of buying lever structures It is better to choose models of the same color as the door, thus leveling out the bulkiness and unsightliness of the device. For example, a black closer on a brown canvas looks extremely inharmonious, while on a black door it looks discreet and quite aesthetically pleasing.
Manufacturers and reviews
The ranking of door closer manufacturers is as follows: the German companies Dorma and Boda deservedly occupy the first and second places. Enterprises specialize in the production of models with sliding traction, which are very popular and are much better bought than knee models. Following the German companies are the Italian Cisa and Cobra, offering consumers traditional lever and hidden floor devices. Next comes the Korean KDC, which uses German components and produces anti-corrosion models for outdoor installation, and the Finnish Abloy closes the top six.
Products from this company are equipped with independent valves that ensure smooth operation and ensure tight closure. In addition, models from Finland are equipped with a very precise control system, which responds very responsively to the slightest change in settings. Buyers consider the only drawback of foreign models to be quite high cost. Thus, the price of especially powerful models designed to control heavy steel doors, can reach 38 thousand rubles.
Models Russian production also popular and in demand on domestic market. Devices from famous companies“Expostroymash Plus” and “Nikiret” are in no way inferior to their imported analogues in terms of their performance characteristics, have many positive reviews and are sold well not only in Russia, but also in neighboring countries. Consumers note the high adaptability of the devices to Siberian frosts and the ability to use the devices in almost all regions of the country. In addition, Russian door closers are much cheaper than their European counterparts, which makes them even more popular and in demand.
Installation
Installation of hidden closers, as well as models on sliding traction must be done by professionals. Such work requires professional tools and appropriate skills, therefore self-installation in the absence of experience, it can lead to damage to the door and incorrect installation of the device. However, it is quite possible to install overhead mounted devices with a lever rod yourself. To do this, you need to carefully read the instructions and strictly follow each point of the manual, and several simple recommendations will help you carry out the installation quickly and correctly.
The first step is to stick a diagram on the door (it is usually included in the kit), and drill holes of a certain diameter in the right places. Then, in accordance with the instructions, you need to attach the body to the fasteners, and then tighten the hardware one by one. It is highly undesirable to overtighten the fasteners. This can lead to the threads of the self-tapping screws being stripped and turning. In some cases, it is necessary to replace the supplied self-tapping screws with more powerful models, and when installing door closers with plastic doors and completely replace the screws with screws. In this case, the hardware will have to pass through the canvas and be secured with reverse side using nuts, wide washers or mounting plates. Otherwise, the screws may simply be torn out of the hollow plastic sheet, which will damage the door.
After the mechanism is secured, you can begin assembling the lever rod, which consists of two parts connected by thread. The lever is adjusted in length by connecting its halves and setting a right angle. If you strictly follow the attached diagram, then there will be no installation difficulties and the installation of the closer will be quick and easy.
Adjustment
After the closer is installed, it must be adjusted. The adjustment method depends on the location of the adjusting screws, which can be located either at the end of the housing or inside it. Typically, screws are designated by numbers 1 and 2, where “one” is responsible for changing the angle of the door opening relative to the frame, which can reach 180 degrees, and “two” is responsible for the speed at which the door will close. The opening angle is adjusted first. To do this, set the desired value, which can vary from 90 to 180 degrees, after which they proceed to regulate the speed of the web.
It is produced in this way: the door is opened to the maximum possible angle that was just set, and released. At this time, they begin to tighten the second screw, achieving smooth operation and stable closing. Typically, the mechanism reacts very sensitively to changes in the position of the adjusting screws, after turning it just a quarter, the blade begins to close extremely slowly. Some closers have a door locking function, so when adjusting such models, you will need to adjust the locking trigger point when the door is open.
Rules for operating a malfunction
Correct installation and correct adjustment allow you to use the closer for a long time, however, in order for the device to last as long as possible, you need to follow a number of simple recommendations. So, you should not leave doors with connected closers open for a long time. This leads to additional stress on the seals and pistons and contributes to squeezing oil out of the cylinders. As a result, the device quickly fails and the need for repair, and sometimes complete replacement of the device. The exception is hidden floor models, the design of which involves fixing the door in the open position for a long time.
In addition, it is necessary to take into account the change in oil viscosity depending on the time of year. So in the summer months it becomes less viscous and the speed of closing the door increases noticeably; in winter, on the contrary, the oil thickens and the door leaf begins to close very slowly. As a result, the room suffers significant heat loss and a working closer brings more inconvenience than benefit. In this regard, it is necessary to monitor the level of oil viscosity and seasonally adjust the door closing speed. It is also necessary to regularly lubricate moving parts and ensure that water does not enter the device. Otherwise, the device will quickly rust and become unusable.
It's no secret that a large percentage of heat loss from a home is due to leakage through the door. In addition to the quality of the door itself, the principles of insulation and the tightness of the closure, the speed of closing the door is important. To control this characteristic, there is a door closer.
Working principle of a door closer
There is an opinion that door closers are usually installed only in public places. I wouldn't agree with that. Advantages door closer They force you to think differently and install equipment not only on the front door of a house or apartment, but also in outbuildings, garages and barns.
- Using a door closer saves heat in room. This happens not only by controlling the time during which the door is held open, but also by firmly holding the door in the closed position.
- door closer extends door service life and its constituent elements and accessories. Thanks to the smooth closing of the door, premature wear of parts does not occur, which is typical for doors that slam shut great strength. The heavier the door, the stronger the impact.
- Closer saves nervous system person, eliminating loud sounds as the heavy metal door closes.
The principle of operation of a door closer is simple and clear, based on the property of an ordinary spring to accumulate the energy it receives when opening a door. The force exerted by a person to open the door is applied to a compressed spring, with the help of which the door slowly and smoothly closes.
Types of door closers
By design features There are two types of door closers.
- A surface-mounted closer, the mechanism of which includes a gear drive. Closing and opening of doors occurs due to the work of gears that trigger the piston mechanism.
- In the second version, the spring and pistons are driven by the cam shaft.
In addition to the difference in the design of the units, the decorative properties also differ.
- The work of the flush-mounted door closer is based on a mechanism with a rod sliding in opposite directions.
- For a closer operating on the principle of a loop, the lever is hidden inside the closer structure.
The criteria for choosing a door closer are several characteristics:
- Web regulation indicator defines Weight Limit door leaf that the door closer can handle. The indicator is marked EN1 and up to EN7. The higher the marking number, the greater the weight of the canvas is permissible.
- Availability door fixation options in open position. If this function is present, the fixation is triggered after tightening the special latch. The position of the door is removed by pulling it towards you.
- Decorative properties– not the last factor that you need to pay attention to when purchasing. The colors, materials used and dimensions of the door closer make it possible to choose a device that fits perfectly into the interior.
Installing a door closer
Installing a door closer is a simple and quick task, you can handle it yourself without resorting to the help of specialists. Consider a step-by-step instruction that will help you do the job accurately and correctly.
- Open the door closer box and find the instructions. Manufacturers, together with the closer, complete the box with a life-size template that clearly illustrates the work.
- On the template you will find two perpendicular red lines, they must be transferred to the door leaf. Align the horizontal line with the upper edge of the door leaf, the vertical line with the hinge axis. Using a pencil, transfer the markings to the door.
- On the same template you will find marked locations for the screw holes. Drill the required holes directly according to the template. Depending on the type of door (metal or wood), select a suitable drill and set aside the necessary screws (both options are usually included with the door closer).
- We install the closer in its place. Mount the closer housing on the door, the rod on door frame. Connect the body to the rod using the included lever. Remember that the force depends on the type of connection. If the rod is perpendicular to the body, the closing of the doors will be slow and smooth. If the lever is perpendicular to the body, and the rod is at an angle, the door will close with great effort. This option is required in cases where the door is closed through a latch.
This completes the installation of the door closer. All that remains is to adjust the closer and the traction force using the adjusting screws, and the work is completed.
Choosing a door closer – necessary stage in creating a warm and comfortable microclimate in your home.
A door closer is a mechanism that allows you to reduce heat loss in a room that occurs due to constant open doors. Its use in many cases prevents penetration unauthorized persons indoors, it is indispensable in systems remote control doors based on the use of electromagnetic locks.
Correct, trouble-free operation of the door closer is a guarantee of your comfort and safety, and this can only be achieved correct installation, compliance with all operational requirements. Otherwise, the device may fail. Is it possible to repair door closers?
How does a door closer work?
To know how to repair a door closer, you need to clearly understand the principle of its operation, as well as its structure. Most of the models offered are of the same type, despite some differences in appearance
In a metal case filled with oil, there is a mechanism that, through a folding lever, transmits the force of closing the door to a spring, which, when compressed, accumulates the energy necessary to close the doors. The spring is compressed as follows.
The piston is driven by a gear and rack, which acts on the spring. Oil flows through the internal grooves in the piston into the released part of the housing. The closing speed is limited by adjusting the speed of oil movement through the channels for reverse flow.
That, in general, is the whole principle of operation, enough simple design, which should ensure the reliability of the device and good maintainability.
Factors that determine whether door closers can be repaired
Unfortunately, manufacturers are apparently not very interested in making door closer repairs affordable. This is suggested by a number of observations, for example the all-alloy body. If problems arise with oil leakage or replacing leaky seals, it makes no sense to take any steps other than buying a new closer.
Therefore, the adjustment of the door closer, as well as its correct installation, play a huge role in durability. During operation, you should not fix the door in the open position using improvised means, this will negatively affect the device. For such purposes, it is better to buy a door closer with a door lock function when opening at more than 900.
Since the hydraulic fluid used is sensitive to changes in outside air temperature (the viscosity of the fluid changes), adjust the finishing speed when changing seasons.
Troubleshooting
Most frequent breakdown is the failure of the folding lever, this is the main problem for door closers installed in walk-through areas. Frequently occurring shock loads, such as gusts of wind, unbalanced visitors, also contribute to failure; it is not possible to hide this element of the closer, so it often becomes a victim of vandalism.
The lever may be deformed or broken; the rod's attachment to the door or the door closer itself is often broken off. Such faults can be easily eliminated by welding, in as a last resort, you can purchase the lever assembly, they are available for sale. You can even use rods from other modifications, provided that the attachment point to the device is compatible.
Problems that can be corrected independently include violation of the closing and finishing speed. These violations can be eliminated by adjusting the corresponding screws, but remember, changing the position of the adjusting screws by more than two turns from initial position not allowed. And, as mentioned earlier, in the event of a hydraulic fluid leak, repairing the door closer is almost impossible.
The tension force of the spring is regulated by the corresponding nut.
From all of the above, we can conclude - follow the rules for operating a door closer, select a model depending on the weight of the door leaf, then the device will serve reliably for a long time.
Sections of the article:
Doors greet us in any institution, be it the entrance to an entrance, an apartment, a room, administrative buildings or technical premises. Sometimes they give in to us easily and silently, quickly open and close, then we don’t seem to notice them, without being distracted by the need for additional effort. But in the event of any malfunction, the discomfort of opening the door becomes very noticeable and only adjusting the door closer can help. With your own hands you can not only adjust, but also install the fastening mechanism, so feel free to undertake this procedure.
The door closer is adjusted manually, without the use of additional equipment. All you may need is a screwdriver. Most often, the screws that secure the device to the plane and frame require a slotted screwdriver.
Design features of the device and adjustment progress
Adjusting the door closer is impossible without a clear understanding of the principle of operation of the mechanism. The closer is a spring combined with rollers and pistons or with a gear mounted on a rack. When the door opens or closes, the mechanism comes into action, collecting or, conversely, opening the spring. At the same time, the vacated cavity is filled with oil. The combination of hydraulics and mechanics results in a reliable and simple device that does not require additional maintenance other than careful handling.
Preparatory stage
If your door slams with a deafening thud from a draft, pinches children’s fingers, and as soon as they weaken their strength while holding the door, it is difficult to open, as if stuck at one of the stages, it’s time to adjust the door closer. 
Like any work, adjusting the door closer begins with preparation necessary materials. You will need: a screwdriver, original instructions, photo examples of repairing and adjusting the device, a chair on which you can stand if your height does not allow you to comfortably reach the upper fastening.
First you need to open the box. This is a rectangular box. Take off top cover usually not difficult, it is secured using the snap-on principle. The principle of the housing is the same in any type of door closer, so even if your system looks like an impregnable metal plate, most likely there are invisible seams somewhere, and it’s all a matter of skillful design.
The principle of its operation will tell you how to adjust the door closer.
Your device may only have two valves. In this case, their adjustments will be sufficient. It's up to you to tighten it tighter or looser. If the door is difficult to give in, you need to loosen the fixation, because this is inconvenient, the door can be difficult for children to squeeze, or to pin down a pet, and create additional stress when bringing in and taking out loads. If the door is loose and opens and closes easily and quickly, there is a risk of being hit by the door.
Door closer device. Adjusting the door closers should alternate with testing the result. To do this, the door will need to be opened wide and closed, at first with some force, and then by releasing it. The ideal speed would be a slow, uniform closing, at last stage which the latch quickly slams shut. If we are talking about an entrance door, for security reasons, you can increase the closing speed so that no one can enter the house by following the tenant.
Working with screws
Having a rough idea of what result you want to achieve, you are ready to learn how to adjust the door closer. The instructions supplied by the manufacturer usually indicate two screws, which are responsible for the speed at which the door closes. 
They are numbered 1 and 2, so you can easily identify them on the closer. They can be rotated clockwise or counterclockwise. It is important to remember that turning any of the screws more than two turns may result in breakage. The first such screw (or valve) is responsible for swinging the door open from 15 to 180 degrees, the second acts as a closer, that is, it regulates the speed of the door movement in the range from 0 to 15 degrees and ensures reliable closing of the latch or combination lock. The rotation of each of these screw nuts affects the properties of the door.
In some models, door closer adjustments may be even more filigree. This occurs if the door closer adjustment allows the door to delimit the opening angles more carefully.
Additional functions
The wind brake, designated BC (Back check), prevents the door from striking when turned 180 degrees. It is responsible for adjusting the door closer at a stage from 70 to 180 degrees, slowing down the closing speed.
The slow closing function DA (Delay action) allows you to prevent strong door pressure in the area from 180 to 70 degrees, allowing a person to calmly walk through the door after opening it without making any additional effort.
Additional functions. The Hold Open function allows you to lock the door in the open position. To do this, you just need to open it wide. To close the door, you only need to forcefully pull it towards you.
For the first two functions there are separate screws that look like the main ones. You can adjust the advanced door closer using the same screwdriver that is used for a conventional device.
Most often, the closing retarder is located next to the two main valves, and the aircraft separately, on the same plane.
You can watch a video before adjusting the door closer, but even a child can do this job. Turning clockwise increases the slamming speed, counterclockwise - decreases it. This rule applies to all screws available on the closer, both in the “sliding” and in the “lever” system. 
The correct position of all valves will lead to flawless door operation. The reliability that the door closer will have can be guaranteed by adjustments for several months in advance. The subtlety is that winter and summer are different temperature conditions operation, and the oil inside the mechanism can have different effects on the compression rate of the spring. In view of this, it is better to tighten the screws at least twice a year, after winter and after summer. If the door closing characteristics change after winter, do not be upset, this is normal, the main thing is to return the actual properties of the door to the proper level in time.
How to adjust the door closer is described in detail in the video presented in our article. It describes the work process step by step, thanks to which even a person far from construction and crafts will be able to correct such details in his home.
Ease of operation
There are a number useful tips, how to preserve the mechanism and not adjust the door closer in the future. First of all, there is no need to load the mechanism - do not let children ride on the door, do not hang heavy objects on it. Secondly, do not forcefully press it when opening it. Thirdly, choose a door closer that suits the parameters of your door.
Our article, as well as photo and video materials, can tell you how to adjust the door closer with your own hands. There is no need for strength, just dexterity, so both a woman and a teenager can cope with such work. Not knowing how to adjust your or public door closer front door, don't be discouraged, just imagine if you would like to close faster from the widest position, or just slam at a hand's distance. In a couple of seconds you can understand how to increase the resistance of the door and how to weaken it. Any door closer is easy to adjust and can only be broken if the tension force exceeds its technical capabilities. In this case, you will see oil leakage, and this will mean that the device will have to be replaced. After finishing the work, do not forget to return the cover and check the operation of the door again.
What to do if nothing works?
It happens that the door closer is adjusted with good information preparation, the instructions are at hand, but still the result cannot be achieved.
The range of modern closers is very diverse. In this case, the point is the wrong choice of this part, especially for heavy metal doors entrances. Most likely, the European standard index does not match the weight or width of the door, the fastening angle is incorrectly attached, or the holes for the screws on which the closer is held are shifted.
In this case, the question of how to adjust the closer is not correct, since you need to change the intercom doors, or, what is more likely, remove the closer and install a new, more powerful one. You should also pay attention to the lever; it must be perpendicular to the plane of the door. If it is misaligned, one of the closer links may need to be moved. When purchasing door closers, know that adjustment is simple, especially if you have not lost the instructions.
