How to loosen the door closer opening. How to adjust a door closer with your own hands
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Doors meet us in any institution, be it the entrance to the entrance, apartment, room, office buildings or technical premises. Sometimes they give in to us easily and silently, quickly open and close, then we seem to not notice them, without being distracted by the need for additional efforts. But in case of any malfunction, the discomfort of opening the door becomes very noticeable and only the adjustment of the door closer can help. With your own hands, you can not only adjust, but also install the fastening mechanism, so feel free to take on this procedure.
Adjustment of the door closer is done manually, without using additional equipment... You may need, perhaps, a screwdriver. Most often, self-tapping screws that attach the device to the plane and frame require a flat-blade screwdriver.
Design features of the device and the progress of the adjustment
Adjusting the door closer is impossible without a clear understanding of the principle of the mechanism. The closer is a spring combined with rollers and pistons or with a wool, fixed on a rail. When the door is opened or closed, the mechanism comes into action, collecting or, conversely, opening the spring. In this case, the vacant cavity is filled with oil. The combination of hydraulics and mechanics gives a reliable and simple device that does not require additional maintenance, except for careful handling.
Preparatory stage
If your door slams shut with a thunderous bang from a draft, pinches the fingers of children, as soon as they weaken the force holding the door, it is difficult to open, as if jamming at one of the stages, it’s time to adjust the door closer. 
As with any job, adjusting a door closer begins with preparation necessary materials... You will need: a screwdriver, original instruction, photo examples of repairing and adjusting the device, a chair that you can stand on if your height does not allow you to comfortably reach the upper attachment.
First you need to open the box. This is a rectangular box. Removing the top cover is usually not difficult, it is secured by a snap-on principle. The principle of the housing is the same in any kind of door closer, so even if your system looks like an unapproachable metal plate, most likely there are imperceptible seams somewhere, and the whole thing is in a skillful design.
How to adjust the door closer will tell you how it works.
Your device may only have two valves. In this case, adjusting them will be sufficient. Tighten or tighten loosely, you decide. If the door is difficult to give in, you need to loosen the fixation, because it is inconvenient, the door can be difficult for children to give in, press on a pet, create additional stress when bringing in and taking out loads. If the door is loose and easily and quickly closes and opens, 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 the beginning with some effort, and then - by letting go. The ideal speed will be a slow, even closing, at the last stage of which the latch slams quickly. If it comes about the entrance door, for safety reasons, you can increase the closing speed so that no one can enter the house following the tenant.
Working with screws
With a rough idea of what result you want to achieve, you are ready to learn how to adjust the door closer. On the instructions supplied by the manufacturer, two screws are usually indicated, which are responsible for the speed of closing the door. 
They are numbered 1 and 2, so you can easily identify them on your closer. They can be turned clockwise and counterclockwise. It is important to remember that turning more than two turns of any of the screws can lead to breakage. The first such screw (or valve) is responsible for swinging the door from 15 to 180 degrees, the second acts as a door closer, that is, it regulates the speed of the door in the range from 0 to 15 degrees and ensures a reliable latch closure or combination lock... The rotation of each of these nuts-screws is reflected in the properties of the door.
In some models, the door closer adjustment may still be filigree. This happens if the closer setting allows the door to delimit the opening angles more carefully.
Additional functions
The wind brake, designated BC (Back check), prevents the door from bumping when turning 180 degrees. He is responsible for adjusting the door closer from 70 to 180 degrees, slowing down the closing speed.
The delayed closing function DA (Delay action) allows you to prevent a strong pressure of the door in the area from 180 to 70 degrees, allowing a person to easily pass through the door, after opening it without making additional efforts.
Additional functions. The Hold Open function allows the door to be locked in open position... To do this, you just need to open it wide open. To close the door, you will only need to pull it towards you with an effort.
For the first two functions, there are separate screws that look like the main ones. You can adjust the advanced door closer with 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 BC is located separately, on the same plane.
Before adjusting the door closer, you can watch a video, but even a child can handle such work. Turning clockwise increases the slam speed, counterclockwise decreases it. This rule applies to all screws available on the door closer, both in the "sliding" and in the "lever" system. 
The verified position of all valves will lead to perfect door operation. The reliability that a door closer will have can be guaranteed by adjusting for several months in advance. The subtlety is that in winter and summer, different temperature conditions operation, and the oil inside the mechanism can affect the compression speed of the spring in different ways. In view of this, it is best to tighten the screws at least twice a year, after winter and after summer. If the characteristics of the door closing 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. There, the process of work is described in stages, thanks to which even a person who is far from construction and crafts can correct such details in his home.
Ease of operation
There are a number useful tips how to keep 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 roll on the door, do not hang heavy objects on it. Secondly, do not press hard on it when opening. Thirdly, choose a door closer that matches 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, enough skill, so both a woman and a teenager can cope with such work. If you don't know how to adjust your door closer or your public front door, don't despair, just imagine if you would like to speed up closing from the widest position, or just slam it close at hand. In a couple of seconds, you can figure out 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 pulling force exceeds it. technical capabilities... In this case, you will see an oil leak, and this will mean that the device will have to be replaced. After finishing work, do not forget to replace the cover and check the door operation again.
What 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 door closers is very diverse. In this case, it is the wrong choice of this part, especially for heavy metal staircase doors. Most likely the index European standard does not coincide with the weight or width of the door, the angle for fastening is incorrectly attached, or the holes for the self-tapping screws on which the closer is held are displaced.
In this case, the question of how to adjust the closer is not correct, since you need to change the intercom doors, or, more likely, remove the closer and insert 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 easy, especially if the instructions are not lost.
The door closer is a special mechanism for automatic closing doors Today's technologies make a person's life much easier. For example, a device such as a door closer eliminates the need to constantly check if the entrance door has closed. Today, manufacturers produce several types of such a device that are installed on entrance doors or interroom. Quite a handy device, easy to install and adjust.
Types and device of door closers
In order to pick up for yourself required model automatic closer, it is worth considering what types are, and for which doors they are intended. The closer model should be selected taking into account the parameters of the door, namely the width and weight of the door leaf. You should also take into account the temperature range at which the closer will have to work.
Door closers come with different kinds mechanisms
The main types of automatic closer mechanisms:
- Top surface closers are wall mounted and held firmly from above. They provide a smooth closing of the door. Gear-driven or sliding bar mechanisms are available. The cost of such a mechanism is relatively low. These closers are very easy to install.
- Floor closers are much more expensive than the first type and require special installation conditions. Most often, they are used for a door that opens in both directions. Also, such a mechanism is very convenient to install on glass and intercom doors.
- Concealed door closers are designed for installation directly into the door leaf and frame. To install this type of door closer, you need a door with a thickness of at least 40 mm. They are almost invisible. The installation of this type of door closer is quite complicated and requires special knowledge and skills.
The street closer is equipped with a mechanism that is lubricated with a special liquid to increase the stability of high temperatures. In other words, if you install a shutter intended for use in indoor areas on the driveway, its performance will deteriorate significantly, and its service life will be much reduced.
What is a door closer for and how does it work?
According to his work door closer look like spring mechanism, which was previously installed on doors and wickets. But the disadvantage of such a device was that the door slammed very loudly and closed abruptly. With the advent of modern devices to automatically close the door, the problem with the formation of noise has disappeared.
The operating principle of a door closer is very simple.
The main working part of this device is a spring and an oil shock absorber, which is responsible for the smooth closing of the door. Through a special valve system, the oil fluid, depending on the direction, flows from one chamber to another during operation.
The principle of operation of the door closer is quite simple
Peculiarities:
- The movement of oil is carried out through the hydraulic system of regulated channels.
- The oil in the mechanism has a rather viscous consistency, thanks to which the opening and closing process is smooth and quiet.
- The strength and speed with which the mechanism works depends on the type of device.
The parameters are easily adjusted using special adjusting screws. The tighter the screws are clamped, the slower the fluid flows through the channels. You can remove and adjust the door closer with your own hands, carefully studying the principle of the mechanism.
Installation and adjustment of the door closer
Basically, door closers are designed to be installed on front doors. During installation, the door closer body is positioned so that it is in the room, it is impossible to remove it from the outside. This arrangement of the case provides additional protection of the mechanism from moisture, dust and dirt.
To install a door closer, you will need:
- Drill;
- Ruler;
- Simple soft pencil;
- Screwdriver.
Fastening materials are included with the mechanism. For ease of installation, most manufacturers complete the device with installation templates, which show all parts of the closer in full size. Also on these templates you can see the places where you need to make holes for fasteners. Using a template, holes are made in the intended place of attachment of the closer. Then proceed to the installation of the device itself. The body is attached first, which must subsequently be connected to the traction arm. If you follow the instructions, installing the closer will not take much time.
Door closer installation diagram
As a rule, closers have different design and the location of the adjusting screws. The door closer is adjusted according to the same scheme, regardless of the design of the device - turning the screws clockwise, the speed and strength of the door closer increases, or turning the screw counterclockwise means slow closing of the door.
In most cases, a quarter turn is sufficient to tighten the screw. If you knock off the balance and tighten or unscrew the screw strongly, you can completely upset the operation of the mechanism, which is difficult to restore afterwards. Improper adjustment can damage the device.
Instructions: how to adjust the door closer after installation
After installing the closer, its adjustment is necessary for the optimal rate of closing the entrance or street door. It is necessary to adjust the door opening speed using the screws located on the front side of the case under a special protective cover.
This function is especially useful when installing a door closer on an interior door.
Closing slowly will avoid damaging the walls. There are several additional functions that can help you to set the optimal door closing and opening.
The door closer can be adjusted
Latches with electromagnetic or electromechanical action:
- Installed on access doors;
- Where the intercom is located;
- On the door that limits the access of strangers to the staircase.
Such a mechanism closes the door to the end and opens only with a special key. Closers with a delay function are required in in public places to facilitate access to the premises for people with disabilities. Most often, the delay is set at 30-40 seconds. The drive adjustment is applied when the door is closed in the last step. This function makes it easier to snap the lock and helps to avoid the rapid release of heat from the room.
Adjusting the door closer during operation
If it becomes necessary to manually adjust the rate of closing and opening the door, you need to pay attention to the basic rules and nuances of the process. Each device comes with detailed instructions that will help you implement this process right.
You can adjust the door closer during operation according to the instructions
Basic adjustment steps:
- The first screw must be turned half a turn counterclockwise to adjust the offset;
- A second screw, a quarter turn clockwise, speeds up opening;
- The third screw, which is located on the side of the case, adjusts the movement force.
It is very important to remember that in order to loosen or increase the tempo, the screws must not be loosened more than 2 turns. This action will result in oil leakage. It is impossible to fix the closer at home. For this reason, adjustments should be made carefully, following all instructions from the manufacturer's instructions.
Quite often the door closer needs additional adjustment... If the closer works tightly, and when opening the door, it is necessary to apply force - then it is necessary to loosen the screws, and the door will work smoothly. Sometimes it becomes necessary that the door is constantly open, this will help to loosen the screw completely.
The screw keeps the door open for as long as necessary.
The screws can be located on the side or on the front, it all depends on the mechanism. You can find out the location of the screws by looking at the instructions, where the manufacturer indicates the location of all parts and parts of the closer. Today, several models of closers are in great demand, which are easy to operate, install and adjust.
If necessary, the door closer can be loosened
Experts have created a list of the most popular models:
- Dorma- closers are suitable for installation on metal doors outdoor and indoor use.
- Bulat are frost-resistant, made of durable metal alloy.
- Diplomat is made of high-strength steel, which allows it to withstand sudden temperature changes.
- Apecs have the additional function of permanent fixation.
All of these models have a lot of advantages, thanks to which they become more and more popular every day. Most manufacturers, in the manufacture of door closers, use only quality materials that increase the service life of the product even under the most severe loads.
Do-it-yourself door closer adjustment (video)
Summing up, we can safely say that door closers are useful and a convenient device... They are easy to install and operate. All models are equipped with special bolts with which the speed and force of retraction or closing of the door is regulated. Additional functions of the closer allow you to keep the doors open or closed. Closers must be purchased from official representatives who can sell according to OKVED.
Similar materials
About Bulldors plant, Kazan manufacturer of steel door designs, among the models of the assortment range of which the doors Bulldors 24 and Bulldors 23 are especially popular.
Production lines
Spiritual, harmonious tranquility and comfort of staying in one's own home are able to provide doors, metal shackles of which block the entrance to strangers and unwanted guests. It is the entrance door structures made of steel sheet from the manufacturer "Bulldors" are able to guarantee protection against unfavorable conditions tenants of an apartment and other building, as well as keep property values intact. Factory-made metal structures are also called "guard doors", which are able to solve all the functional tasks assigned to the entrance block of the opening. Experts are well aware of all the principles by which door entrance blocks are selected, provided in the assortment on the construction market.
That is why the development strategy of the plant is reduced to the manufacture of truly practical and reliable structures, which include protective, noise-insulating, heat-insulating, as well as aesthetic indicators of high-quality products. Each unit of the model range of the manufacturing company "Bulldors" ideally copes with the assigned functions and harmoniously complements the interior with any stylistic solution.
The plant for the production of steel door structures "Bulldors" is a modern production, the base of which has reunited best technology domestic and foreign quality indicator. The production process of the plant is fully automated, starting with the preparation of door elements, ending with the packaging functions.
The high degree of automation allows in the factory to produce up to 800 units of quality products from the conveyor during the day, which provides the consumer with a catalog. Full automation technological process production of metal door covers, provides uninterrupted and high-quality satisfaction of consumer demand in retail chains construction markets door products.
The industrial complex of the Kazan plant operates on modern high-tech equipment:
An extensive fleet of CNC machines is able to provide a high rate of accuracy of operations software without the physical participation of a person. Exactly Hi-tech and state-of-the-art high-precision automated equipment recreates flexible door manufacturing involving a full cycle of manufacturing steel entrance structures that meet both recommended and prescribed quality standards as well as customer preferences.
Production of this level cannot produce defective doors or low-quality metal products. Doors leaving the conveyor under the Bulldors trademark meet high quality standards.
Model range of products
The range of products manufactured by the Kazan Steel Door Blocks Plant is presented in the following names, which can be demonstrated by the catalog:
| Door block models | External / internal door trim | Locking devices | Recommended value (by factory) |
| Bulldors-11 | - lever lock G 1011 - night latch - door handle H0826 in chrome | $148,5 | |
| B-12 | - powder-polymer coating (copper color) - laminated MDF | $150 | |
| B-12S | - powder-polymer coating (copper color) - MDF skin | — cylinder lock G1211- night latch- door handle Н0826 in chrome-lever lock PRO-SAM 3V8-8U | $189 |
| B-12T | - powder-polymer coating - MDF skin, mirror | - cylinder lock G1211; - door handle H0826 in chrome; - lever lock PRO-SAM 3V8-8U | $213 |
| Bulldors 23 | - powder-polymer coating (copper color) - laminated MDF (structure of valuable wood species) | - Cylinder lock Bulldors D-1 - Armor plate - door handle Н0783 in chrome - lever lock Bulldors D-2 | $189 |
| Bulldors 24 | - powder-polymer coating (copper color) - MDF (1 cm) with three-dimensional pattern - PVC coating | - cylinder lock Bulldors D-1 - mortise armor plate - door handle Н0783 in chrome - lever lock Bulldors D-2 | $224,5 |
| B-25 | - MDF (thickness 10 mm) with volumetric pattern - PVC coating - platband - PVC | - cylinder lock Bulldors D-1 - mortise armor plate - night latch - door handle H0783 in chrome | $272,7 |
| B-26 | - powder-polymer coating - MDF (1 cm) with volumetric pattern - PVC - black glass | - Cylinder lock Bulldors D-1 - mortise armor plate - door handle Н0783 in chrome - lever lock Bulldors D-2 | $282,6 |
| B-27 | - powder-polymer coating - MDF (thickness 1 cm) with volumetric pattern - PVC - mirror | - cylinder lock Bulldors D-1 - mortise armor plate - handle Н0783 in chrome - lever lock B-D-2 | $252,7 |
| Steel 12 | - cylinder lock Guardian-12.11 - handle Н0826 in chrome - lever lock PRO-SAM 3V8-8U - peephole | $198,4 | |
| Steel-23 | - powder-polymer coating - powder-polymer | - cylinder lock B-D-1 - armored lining - night latch - handle Н0783 - lever lock B-D-2 | $213 |
| Laser 24 | - powder-polymer coating - composite inserts - MDF (1 cm) with three-dimensional pattern - PVC | - handle Н0783 - lever lock B-D-2 | $240,30 |
| Lux-25 P-1, Lux-25 P-3 | - MDF (1 cm) - 2D patina drawing - MDF (1 cm) - 2D patina drawing | - cylinder lock B-D-1 - mortise armor plate - night latch - handle Н0593 - lever lock B-D-2 | $428 |
| Lux-25 P-4; Lux-25 P-5 | - MDF (1 cm) - 3D patina drawing - capitals - MDF (1 cm) - 3D patina drawing | - cylinder lock B-D-1 - mortise armor plate - night latch - handle Н0593 - lever lock B-D-2 | $504 |
Technological advantages
The following advantageous qualities in the design can be noted:
Many users are familiar with such a mechanism as a door closer firsthand. Indeed, thanks to the technical and economic indicators, this device can increasingly be seen on swing-type door systems. A similar circumstance is connected with the fact that it is precisely due to the use of a door closer that it is possible to ensure smooth closing / opening of the door leaf and minimize the presence of shock loads in the process of contact of the door with the frame.
And although the design of the door closer is based on elementary processes, nevertheless, the durability of this mechanism and the correctness of its functioning largely depends on the timeliness of routine maintenance. Therefore, the topic of today's article will be instructions on how to adjust the door closer yourself.
Design features of door closers
Considering the design of modern door closers, it can be noted that, depending on the installation site, the following types of mechanisms are distinguished:
- Overhead door closers are most common due to the simplicity of their design (the door closer body is placed over the door frame). Moreover, such designs can be used for equipping lungs interior doors and for heavy swing systems (entrance doors).
- Floor closers have a slightly different structure and are installed directly into the floor. Whereas the axis of the closer at the same time acts as a holder for the swing system. In view of this, floor closers for doors are practically invisible and in most cases are used to operate doors in public buildings.
- Hidden closers are located in the body of the door leaf or frame, and therefore their adjustment is associated with certain difficulties (it is difficult to get to the adjusting screws). Therefore, closers are used hidden type mostly in places with constant temperature environment(so that the thickness of the oil does not change).
Varieties of mechanisms
If we consider the most common types of door closers mechanisms, then cam (slide) and gear type devices should be distinguished. Moreover, the first of them work on the sliding principle and can ensure smooth opening / closing of door panels of small mass. Whereas the gear-type closer mechanism functions by transmitting rotation through gearing, which makes it possible to use these systems even for powerful and heavy doors and modules.
In addition, the choice of a door closer is influenced by such factors as wind load, dimensions of the door leaf and associated air resistance, as well as climatic characteristics of the environment.
Why it is necessary to adjust the closer
The possibility of adjusting the door closer operation is implemented in all existing types specified devices. And used to provide the most optimal conditions exploitation. Indeed, depending on the type of doors, their weight, installation location, individual preferences, a different duration of the transition process may be required.
In addition, the adjustment of the door closer is extremely necessary when the climatic parameters (ambient temperature) change. Indeed, if there is negative temperatures, the oil circulating in the cavities of the device becomes unnecessarily thick and, accordingly, the work processes slow down. Conversely, during warming up, the composition becomes liquid, which significantly increases the speed of the door closer.
Based on the foregoing, it can be noted that it is advisable to adjust the closer at least 2 times a year, achieving the most optimal regime work.
Variable door closer functions
If we consider all the possibilities of adjusting the door closing mechanism, then the following options are available for most door closers.
Closer speed control
It is the most important parameter and in fact allows you to change the speed of opening / closing the door leaf. In standard models of overhead door closers, this option is made possible by changing the tension of the drive spring (which can either be weakened or strengthened). And for external influence this spring usually uses an adjusting screw # 1. The range in which this adjustment takes place is from 180⁰ to 15⁰.
Regulation of the "latch" mode
Allows to ensure the smoothest door closing at the moment the leaf approaches the door frame (in the range from 15 to 0 degrees). In addition, by adjusting the latch, you can ensure the most tight fit of the door leaf to the plane of the frame. Again, for standard mechanisms, the specified parameter is adjusted using the adjusting screw No. 2.
Open position function
It is available in some models of door closers and allows you to fix the leaf in the open state for a long time (for example, in the event of a move). And for its implementation, a special retainer is also provided.
Do-it-yourself door closer adjustment
It should be noted right away that the door closer operation should be adjusted only after the end installation works(You can read how to install the door closer yourself). Well, for the convenience of users, we will describe the adjustment of the specified mechanism in all existing modes.
Adjusting the speed of closing the door leaf
So, when the closer is installed, you should check the correct operation (closing speed) of the door leaf in the range from 180⁰ to 15⁰. In this case, you should make sure that the mechanism works clearly and without rubbing.
If there is a need to change the operating mode of the device, then proceed as follows:
To speed up the door closing, turn the adjusting screw No. 1 slightly in the "+" direction (counterclockwise);
To slow down the door closing, the adjusting screw No. 1 should be slightly turned in the “-” direction (clockwise);
However, both in the first and in the second case, the maximum rotation of the adjusting screw should not exceed two revolutions (in order to exclude the possibility of depressurization of the internal cavities of the closer).
Door leaf latch adjustment
By by and large this correction is completely identical to the above method, with the only difference that the speed and force of pressing the web against the box are adjusted in the range from 15⁰ to 0⁰.
That is, at the moment of closing, after waiting for the door leaf to be 10 - 15 cm from the end point (closed position), it is necessary to control the door travel and select a mode of operation that would provide a slower pull of the leaf and its tight contact with the door frame (clamping force). Adjustment this parameter is carried out using screw No. 2.
However, taking into account the design features of the door closers (with an increase in the closing speed, the impact of the door on the frame increases), making the adjustment it is necessary to achieve the most optimal ratio and exclude the presence of strong blows of the door against the frame.
Setting the intermediate stroke
It is carried out using screw No. 3 and allows changing the closing speed at a certain section of the path. However, in practice this setting is used extremely rarely and they prefer to use this option ("hold open") only when it is required to completely lock the door leaf in a given position.
In this case, the algorithm for adjusting the closer is implemented in the following order:
- The door opens at an angle of about 70 to 180⁰;
- The locking screw # 3 is tightened on the door closer;
- When the doors are pushed open to a predetermined degree, the canvas is automatically held open (the latch is triggered);
- If it is necessary to close, the door should be slightly pulled "towards you" and the curtain will begin to close in normal mode.
Recommendations for setting up and operating a door closer
In order for the door closer to serve for a long period of time, during its operation and maintenance, it is advisable to observe the following recommendations.
First, when adjusting the closer, it is strictly forbidden to turn the adjusting screws more than two turns from the zero point. This is due to the high inertia of the mechanism (rotation of the screws even by a quarter of a turn can cause a significant change in the operating mode of the door). In addition, excessive turning of the adjusting screws is fraught with depressurization of the closer (oil will simply leak out).
Secondly, it is necessary to carry out routine maintenance in a timely manner and, if necessary, not only adjust the closer, but also lubricate all rubbing elements. (The operation of the mechanism with rubbing and distortions is prohibited).
Thirdly, during the operation of the doors, one should not exert excessive loads on the door, helping it forcibly (it should close itself);
In addition, it is not recommended to fix the door with the closer in the open state by means of a support. For these purposes, a special option is provided. It is also not advisable to hang heavy objects on the canvas, so as not to cause a skew of the door module.
The closer is a device for returning the door to its original position in automatic operation. This device silently and softly closes the open sash. If necessary, it holds the door leaf open. Many doors are equipped with a modern practical fixture. At the same time, like any technique, the door closer needs maintenance, adjustment and troubleshooting.
Types of mechanisms and their structure
To better understand the principle of the mechanism's functioning, you need to analyze its basic varieties, so it will be easier to figure out how to correctly debug the door closer.
For the most part, these two types of this device are practiced:
- cam slide - performs soft sliding, is practiced for blades with light weight;
- toothed lever - the most common type of mechanism, the movement of the spring is realized by means of gears, it can be used even for massive door leaves.
According to the method of mounting, the fixtures can be divided into three main types:
- Overhead structures (overhead)- these are the most straightforward devices to use, their functions can be adjusted by means of several screws or valves located on the body panel. They are mounted in the upper part of the sash, which is extremely convenient for installation. For input street doors specialized oil-filled devices are manufactured, adapted for operation in hot or cold climates.
- Outdoor. Floor-mounted systems are also relatively easy to set up. They showed themselves excellently in banking institutions, offices, shopping and entertainment complexes and where there are high demands for the external appearance of doors. These devices are integrated into the floor and are almost invisible to visitors. Sliding type regulator mechanisms are used, designed for doors weighing no more than 100 kilograms.
- Concealed devices it is quite problematic to adjust it on your own, since they are removed inside the door leaf or into the floor, which complicates access to them. The devices are in demand wherever a thorough cosmetic finish and a perfect main façade are required.
According to the principle of operation, the devices are as follows:
- hydraulic;
- pneumatic;
- electrical.
Fixture structure
The structure of this device the following parts and mechanisms are included:
- die-cast aluminum body;
- spring;
- piston;
- adjusting screws (valves);
- gears;
- needle bearing;
- rubber seals;
- fasteners.
The principle of the closer
The basic component of the structure is a spring system, which, when the door is opened, is compressed and accumulates the energy required to close the door. The squeezing process is carried out by transferring the force of the traction device to the spring. Toothed gears and racks move the piston, while the oil flows through the internal channels into the free part of the housing. During reverse the door spring expands and provides a soft close.
When is the procedure necessary?
Adjusting the door closer operation is quite a simple matter... Setting can be done without any problems with my own hands... It is worth figuring out in what situations it may be necessary to adjust the parameters of this mechanism. The first thing to remember is that the duration of the uninterrupted operation of any mechanism is directly based on the quality of its maintenance during the entire period of operation. As a result, 1-2 times a year, it is required to inspect the closer and eliminate minor malfunctions. This is especially important during the transitional change of seasons.
Climatic conditions vary enormously in summer and winter. Most of the closers are filled with oil, and as you know, any liquid changes its state when the ambient temperature changes. In particular, in winter, the oil becomes thicker and the door leaf travels slower. In the summer, everything turns out to be the opposite, therefore, it is required to prepare the closer to the required level. Adjustment of the device is also necessary if you notice any malfunctions or you just do not like the settings you have set. If the device starts to slow down or the door leaf closes too hard and quickly, in jumps, long time does not attract, you can try to correct all this. Things are somewhat more complicated when the device is out of order, since easy setup will be ineffective and repair work will be required.
Instructions for setting up a door closer with your own hands
It is not necessary to invite an expert to adjust the device. It is enough just to have minimal set tool and certain skills. The whole procedure will take a minimum amount of time and will make it possible to achieve the desired result by adhering to the steps listed below.
- Before proceeding with the procedure itself, remember that the main thing is not to overdo it with the control valves (screws). It is acceptable to make only 2 turns, then complications can appear. Oil in the pressure vessel may spill out and hydraulic system the closer will eventually lose its performance.
- To adjust the closing speed of the door leaf, it is necessary to learn only one tendency - turning the valve clockwise, it will gradually decrease. If the action is performed in the opposite direction, the closing speed will increase.
- The problem that only one person can get through has a solution. Since there is a third valve, the adjustment of which can provide the door with a stationary position for a certain time. Consequently, even a group of people will be able to freely enter the premises.
- Such a problem as the lack of force to completely close the door leaf is eliminated by adjusting the valves responsible for the closing speed.
Finding the perfect solution can be a key challenge when adjusting a door closer. The main task is to close the door to the end so that no gaps remain. It is necessary to correctly choose the ideal time that the door leaf can remain open. It is also required to make possible silent closing, hard blows against the door frame are unacceptable. This can cause damage to the canvas. And the worst option may be the loss of performance of the mechanisms responsible for proper operation.
How to adjust the closing force so that the door does not bang?
For self-configuration you will need a flat head screwdriver or an imbus wrench. The door opens to the end, special valves are fixed, located at the end of the device. Full fixation is performed when the door leaf is closed. By changing the degree of tightening of the valves, you can adjust the door to an extremely comfortable closing. Valve number 1 is responsible for the closing force of the door.
If the fully open door closes too quickly at the beginning, the valve must be tightened, and if it is slowly and necessary to increase the speed, on the contrary, it must be unscrewed. Valve number 2 is responsible for the speed at which the door leaf is fully closed (slammed). Some modifications have a third valve, which adjusts all the efforts of the closer functioning. With proper tuning, the door leaf moves smoothly, without jerking. Correct installation and competent attitude of the closer will result in a long service life.
Important! Do not turn out the control valves at all. Otherwise, they will cease to exercise their functional purpose even after returning them to their place.
How to weaken the opening?
Quite often, the closer requires additional adjustment. If the mechanism works tightly, and in the process of opening the door it is required to exert effort - it is necessary to release the valve, the door will begin to function smoothly. The valves can be placed from the end or on the front side, it all depends on the modification of the device. You can find out the location of the valves by looking in the manual, where the manufacturer indicates the location of all components and elements of the door closer mechanism.
Position open
At times there is a need for open door over a relatively long period of time. It is worth figuring out how to adjust the device so that the doors do not close, but remain open. In many door closer versions, there is an auxiliary hold open option for this. To adjust it to this mode, you need to open the door approximately 90 degrees, and then tighten the specialized latch. After such simple actions, it will be possible to leave the door leaf open when opening it to the configured degree. A special latch will be activated in the device and will hold the door in this position as long as necessary. If you need to close the door, you just need to pull it towards you, and it will be removed from the latch. If you do not open the door to the limit, it will move in the same way as always, without stopping.
- significant violations of the speed of the door leaf, departure from normal parameters is eliminated by turning one of the adjustable screws in the required direction, which will vary from the speed of opening (closing) the door;
- it is possible to increase (decrease) the closing speed by turning the second valve clockwise or against it;
- if you turn the nut in the required direction for adjustment, then you can make corrections to the spring tension;
- turning the adjustable nut will correct the valve responsible for the opening angle of the door, as a result of which it will open smoothly, it will become easier to swing open.
We can safely say that door closers are practical and comfortable devices... They are easy to install and operate. All modifications are equipped with specialized valves, through which you can adjust the force and speed of opening or closing the door leaf. Closer options make it possible to keep the doors open or closed. But remember - you need to buy these devices from distributors who have the right to sell in accordance with the all-Russian classifier of economic activities.
For information on how to adjust the door closer with your own hands, see the next video.
