Many of us remember simple devices that were previously used to ensure independent and tight closing of entrances, gates, entrances to the entrance, etc. For this, ordinary springs, counterweights with cables and block systems were used, and often craftsmen adapted even rubber bands or pieces of old tires for such purposes. Today, such problems are solved much easier and more efficiently, since there is always the opportunity to buy a door closer - their range on sale is very wide.
Buying such a mechanism is only half the battle, since you still need to mount it correctly. You can, of course, turn to the services of the masters, however, if you carefully figure out how to install the closer on the door, it turns out that such work can be done independently.
General information about the device door closers
A door closer is a mechanical device that accumulates potential energy when a door is opened, which is then used to close it tightly. The "accumulator" is most often a powerful spring.
Transfer of force to and from the spring door leaf, can be done in one of two ways:
1. Closers with internal hydraulic circuit and rack and pinion power transmission.
- When the door is opened, the gear mounted on the axis of the lever, turning, transmits translational motion through the rack to the piston (upper part of the figure), and he, in turn, compresses the spring.
- When the opening external force is removed, the spring tends to return to its original position (in the figure - from below). She pushes the piston, causing the gear to rotate, which transmits force to the lever system of the closer.
Smooth operation is ensured by a system of cavities and channels through which oil flows, which fills the entire body of the closer. By changing the internal clearance of the channels, you can fine-tune the smoothness of the entire mechanism.
Such a scheme is the most widespread, especially on closers with lever transmission of force.
Video: device and installation diagrams for a closer with a rack and pinion mechanism
2. Cam closers
On the axis of the lever there is a cam of a complex eccentric shape (“heart-shaped”), supported on both sides by rollers. When the door is opened, the protruding part of the cam compresses the spring, which, on its return stroke, causes the cam to turn in the opposite direction, which leads to a smooth closing of the door. Torque adjustment is carried out by changing the geometry of the eccentric profile.
Such a scheme is more often used in closers with a channel arrangement of thrust or in concealed placement mechanisms.
The next parameter for the classification of door closers is the place of their installation. The vast majority of devices are designed for surface mounting at the top. However, sometimes for reasons of non-aesthetics or the impossibility of installing the mechanism from above (for example, glass doors, or in cases where the closer, by its appearance, violates the intended design of the room), other schemes can be used - hidden installation in the floor, in the frame or in the door leaf.
In turn, overhead closers with a top location are divided into two types:
- Mechanisms with articulated (lever) traction, consisting of two knees. Advantages - simplicity and reliability of the design, good transmission of force, large potential settings and additional features. The disadvantage is that the protruding lever system may not be to everyone's taste for aesthetic reasons. In addition, it is more prone to vandalism.
Closer with guide channel - slider system
- Closers of the slider system - with a sliding channel. The free end of the lever is provided with a roller and moves in a closed box-shaped channel. Advantages - aesthetics, less susceptibility to vandalism, the possibility of placing a door opening limiter in the channel. The absence of protruding parts allows you to install such closers on doors, closely spaced to the walls. Disadvantages - more significant efforts are required to open the doors (spring compression), limited adjustments and additional functionality.
What to consider when choosing a closer
If there is a desire to equip the door in your apartment or house with a door closer, you need to decide on its “size” before purchasing this mechanism. Under this concept lies the classification according to the European standard EN 1154. So, there are seven gradations of door closers according to the magnitude of the closing force, which are selected based on the size and weight of the door leaf:
Standard gradation of "sizes" of the door closer
- When choosing the right model, you need to focus on the maximum rate of your doors. For example, if the canvas is 900 mm wide, but at the same time weighs 70 kg, then you will need to purchase a door closer with an EN -4 size.
- For maximum convenience of consumers, the developers of such mechanisms often provide for a certain range of their capabilities. For example, in the technical documentation, the limits "EN -2 ÷ EN -4" may be set. The specific amount of effort in this case will be determined only by the features of the installation of the closer.
- In those rare situations when the efforts of one closer may not be enough, they resort to installing them in pairs.
- It is worth purchasing the model that best suits the existing doors. Understating the characteristics will lead to a quick failure of the door closer. Too large size is unnecessary difficulties with the normal opening of doors.
- If you plan to install a door closer on the street or in an unheated room, you must definitely clarify whether such a possibility is provided for specific model. The problem is a significant change in the viscosity of the oil in hydraulic system during thermal fluctuations. Usually, the product data sheet indicates the permissible operating temperature range.
- You can immediately evaluate the functionality of the selected model. The basic adjustments of most closers include changing the spring force, speed and closing force of the door in the sector from 180 to 15º and in the final section (finishing) - from 15 to 0º. In addition, other options can be provided:
- A special adjustable hydraulic damper will help prevent sudden opening of doors with excessive force or in a draft or gusty wind. He will keep the door from breakage, from impact on adjacent walls, will not allow accidental injury.
- Often, the operating conditions of the premises require leaving the door open for a long time. This will require a closer with a locking mechanism in the open position.
- There are situations when after each tearing off the doors and before they close, a certain pause is required, on the order of half a minute (for example, warehouses, pantries, utility rooms). This possibility can also be implemented in door closers with a closing delay function.
- If the doors are equipped with an elastic seal, or they are equipped with latches, the function of precise control of the speed and closing force will be useful.
- If the doors are double doors, then an additional mechanism may be needed to coordinate the uniform closing of both leaves.
- For "cold" doors, it is better to purchase a door closer with a "thermal damper" system, which, in response to changes in external temperature, expands or narrows, compensating for changes in the viscosity of the oil in the hydraulic system.
An approximate procedure for installing a door closer
Since the most common in apartments are closers with a hydraulic rack system and a lever mechanism, the installation process will be considered using their example. By and large. Installation of closers with a slider system is not particularly different, and in some cases it is even an easier task.
- First of all, you should decide on the installation scheme, which depends on the direction of opening the doors:
- If the door opens towards the door closer, then its body will be attached to the door leaf, and the lever system - to the door frame.
- When the door is opened outward, away from itself, the scheme changes to the opposite - the body is on the jamb, and the bracket of the lever system or the sliding channel is on the door.
In both cases, the adjustment screws on the closer body must point towards the hinges.
- The kit of almost any modern door closer necessarily includes a full-size template, which simplifies the process of carefully marking the attachment points of both the body and the lever bracket.
Typically, templates are available for all intended installation methods - left and right doors opening outward or inward.
In addition, if the closer has the ability to work in several standard classes according to EN, then this will also be indicated on the template. There are different lines of its application to the corner of the door (as in the example shown), or drilling centers are indicated in different colors on it mounting holes for each level (size).
So, if the master has decided on the required size and location of the parts, you can proceed to the installation.
- The template with maximum accuracy is attached with strips of adhesive tape to the door leaf along the indicated lines. A center punch marks the centers of the holes to be drilled.
- An electric drill drills holes of the diameter required by the installation instructions.
- The fasteners included in the delivery set (self-tapping screws) fasten the body of the closer. At the same time, it should once again check the correct orientation of the adjusting screws.
- The next step is to install the bracket (foot) with an adjustable knee of the lever system.
If the parts of the lever mechanism in the delivery set are interconnected, then this hinge must be temporarily disassembled - its final assembly will be carried out when adjusting the closer.
One more nuance. The bracket may not be symmetrical, so its location should be checked against the required closing force of the door. In the case under consideration (in the figure), two positions are shown - for EN -2 and for EN -3 and 4.
- In the case when the priority is smooth closing of the door without knocking, and the door itself is not equipped with a latch or seal, the adjustable knee of the lever is placed perpendicular to the surface of the door, and the rigid lever is at an angle to it. The connection is made with complete closed door. The length of the adjustable lever can be easily changed by screwing or unscrewing the screw part of it by a few turns.
Requires door closure
— If an accentuated finishing force is required to close the door (a lock with latch or sealant), then the scheme changes somewhat. The rigid lever in this case should be perpendicular to the door leaf, and the length of the adjustable knee is adjusted to this location. Thus, the closer spring initially becomes slightly loaded, which will increase the force when the door is fully closed.
- After adjusting this "triangle", a hinge is assembled between both knees.
In fact, this is where the standard installation procedure for the closer ends and you can proceed to the adjustment. However, as practice shows, the design of the door can present certain "surprises", which will require the use of special mounting strips (plates) or corners:
- Too deep a doorway makes it impossible to place the lever bracket directly on the door frame. In this case, it is installed on the mounting bracket.
Reverse situation - the door closer body is installed on the mounting bracket
- "Mirror" situation, when the closer body itself requires installation on the mounting bracket .
- The design of the door leaf does not make it possible to install the closer body on its surface (for example, high glass). In this case, the mounting plate is first attached, and then, to it, the case itself.
- The door leaf protrudes somewhat beyond the frame, or the space above it does not allow the bracket to be attached to it. To align the housing and the mounting of the levers on the same level, to create conditions for reliable fastening, you will need to install a mounting plate.
- Complex curly shape door frame does not provide a flat platform for mounting the closer body. The output is pre-installation of the mounting plate.
Mounting brackets or plates are usually not supplied with the door closer, but are usually sold in a fairly wide range for most models.
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Adjustment of the installed closer
After installing the closer, it is required to make the necessary adjustments so that its operation is most comfortable for the owners.
The closing speed of the door is adjustable in two ranges. Location and marking of set screws different models may vary significantly - this should be clarified in the instructions attached to the product. The principle of regulation is approximately the same.
- First, by turning the corresponding screw, the closing of the door to the closed state is adjusted. Strength and speed established"shock" directly depend on the mass and design of the door, its equipment with a lock with a latch (for example, at entrances with combination locks latch can be quite tight) installed around the perimeter of the opening of the sealing contour. In any case, the speed of the door in the finish section should not differ too much from the movement in the initial sector.
- Then set the most acceptable speed from the fully open position to an angle of approximately 15º (before finishing). The door should move smoothly, without jerks and stops.
- The adjusting screws rotate very smoothly, in a small sector - this is quite enough. Excessive tightening or unscrewing of the screws can lead either to breakage of the mechanism or to depressurization of the case with oil flowing out of it.
- If there is a need to increase the closing force, it is possible to increase the preload of the closer's working spring with a special screw.
As already mentioned, some models have closers and additional functions. The instructions for installation and operation of a specific product will indicate the adjustment rules that must be strictly followed.
Video: an example of adjusting a door closer
- In no case should the door closer be considered as a limiter for the maximum opening of the door - the lever mechanism will not last long with this approach. For this purpose, it is better to use shock-absorbing door stops mounted on the floor or on the wall. The exception is some models with a slider arrangement of the lever - sometimes it is possible to install a limit opening limiter in the guide chute.
- It is forbidden to block the door with a closer in the open position using heavy objects placed in the way of the door leaf or tying it by the handle. If necessary long term to keep the entrance open, it is necessary to disconnect the lever system for this time.
- Do not try to forcefully increase the speed of closing the door manually - this will cause rapid wear of the mechanism.
- It is forbidden to hang on the doors, allow children to ride on them, hang a significant load on the handles.
- The closer will function correctly if the door structure itself is not defective. Even before installation, you should check the absence of looseness or sagging in the hinges, warps of the web, the correct fit of the locks and latches, constantly monitor this during operation.
- If the door closer has to be installed outdoors, it should be protected from precipitation and direct sun rays. Machines installed in such "cold" conditions will require seasonal adjustment twice a year.
- It is necessary to carry out regular (at least once a year) lubrication of the pivot points of the lever mechanism with grease.
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If the owners observe the operating rules, the closer must conscientiously work out the period guaranteed by the manufacturer.
Closer - the design of the automatic return of the door leaf to its original position. The "smart" device smoothly and silently closes the open sash. Most doors are equipped with modern convenient device. But, like any mechanism, the device requires careful maintenance, adjustment and repair.
The following material will help to set up, perform a simple inspection of the device.
Device types
The mechanism controls the course of the canvas (closer). It sets the mode of movement: speeds up or slows down the closing process, makes the sash soft and easy to slide. There are several operating principles.
In practice, two types are used:
- The sliding rod actuates the spring and the piston system. One piston opens, the other brakes. The sliding type design is compact and reliable, suitable for lightweight doors.
- With gear lever type - the most common class of locking structures. A reliable combination of spring rod and gearbox allows you to put fixtures on massive doors.
The main requirement for choosing a door closing regulator is that it must correspond to its parameters, the more massive the canvas, the more powerful the door closer is needed.
From the location of the control nodes on the door, the following groups are distinguished:
- upper;
- systems installed on the floor;
- hidden.
Upper. Widespread class door closers. The combination of low price and reliable performance makes them popular with the population. They are installed at the top of the sash, which is very practical during installation. For exterior doors, manufacturers produce special oil-filled devices adapted to work in hot or frosty climates.
Floor holders. Well proven in office space, shopping malls, banks, where to appearance doors increased requirements. Floor systems are built into the flooring and are practically invisible to visitors. Sliding-type regulator designs are used, designed for doors weighing up to 100 kg.
Internal appliances. Devices are indispensable where careful cosmetic finishing and an impeccable front facade are required.
- Sliding type design of small size, mounted inside the door frame or door leaf.
- Closer in the form of a loop - a compact device. The range of application is limited: do not install on heavy doors; wears out quickly; special accuracy of installation on the doorway is required.
When is adjustment required?
It is quite possible to adjust the closer yourself in cases where:
— Mounted a new door closer on the door leaf;
- for the purpose of preventive examination. Elimination of small faults contributes to the increase in the service life of the device;
- with changing climatic periods. Devices go on sale for the most part with oily filling. When weather conditions change, the viscosity of the liquid in the mechanism changes, which requires additional calibration;
- when detecting easily eliminated defects;
- in case of failures in the continuous operation mode. An urgent fine-tuning is carried out in the functioning of the automatic device;
- if there was a failure or a breakdown, one adjustment is not enough. It is necessary to take a number of measures to restore the full functionality of the equipment.
What and how to regulate
There are two screws on the housing for adjusting the closer. Some manufacturers have bolts from the end of the case, while others cover them with decorative covers. The adjusting screws are marked with the numbers one and two. One bolt is designed to adjust the opening angle to 180 degrees, and the other affects the speed of the rebate. 
Angle setting (opening angle 20-180*).
The first step is to adjust the opening angle of the door.
- set the required angle parameter to 90 or 180 degrees with the adjusting bolt No. 1.
Setting the shutter speed:
- by scrolling bolt No. 2 clockwise - the closing speed increases,
- performing a turn counterclockwise - the cover speed will slow down,
- open the door to the set angular characteristics,
- release the sash,
- start adjusting the blade return speed with the adjusting screw No. 2, achieving a smooth ride.
Installing the end flap (opening angle from 15-0 degrees):
Acceleration adjustment is necessary for the tightness of the porch:
- adjust with screw No. 2.
Important! Strictly monitor the number of turns of the tension screw, do not scroll more than one turn. Possible depressurization and leakage of oil from the device.
Open position. Not all clutches are equipped with a locking function open doors. Manufacturers produce mechanical devices with a retention system that can be turned on and off or without it. The stop load is carried by a special clamp. It is available as an option, not included.
Mode setting:
- open the door to 90 - 100 degrees,
- adjust the special pin. The holder will fix the open door.
How to remove the hold option:
- pull the door towards you, the latch is turned off.
- Do not open the door leaf at full swing, then the locking mechanism does not turn on.
- Closing proceeds as usual.
What not to do
Some features of regulation:
- Strictly follow the turn of the adjusting bolt. Do not turn more than two turns. There is a risk of breaking the tightness of the closer body with loss of lubricant.
- Avoid distortion during installation. Distortions affect the duration of the structure.
- Do not press hard on the door when closing, which also leads to rapid wear of the mechanism.
- You can not put props under the canvas in the ajar state, it is enough to use the locking option.
- Do not hang massive things on the door leaf. The additional load leads to a skew of the finishing unit.
The leveling of the bringing mechanism assembly, performed in a timely manner, will increase the operating period of the device by long time.
Door closer - necessary and useful invention. This is a mechanism that automatically closes the doors and contributes to less wear and tear. door hinges and accessories. Properly performed installation and timely adjustment of the door closer will guarantee its Good work And long term services.
Device features
Almost all door closers, regardless of the manufacturer, have the following functions:
- Sliding speed of the door leaf.
- Closing smoothness.
- The ability to keep the door open.
The sliding speed of the door leaf can be faster or slower. It is regulated by the degree of tension of the spring inside the device. It must be remembered that in no case should you pull the door, helping the closer. This will quickly disable him.
Dokhlop allows you to smoothly close the door, suspending the canvas just before closing itself. This function ensures silent operation of the door, eliminating loud noises. In addition, the door flap contributes to a tighter fit of the door leaf to the frame. The angle at which it will slow down before fully closing is usually in the range of 10-15 degrees. It can be adjusted when adjusting the closer.
Sometimes it becomes necessary to leave the door in the open position. A function called "hold open" helps with this. Thanks to it, the sash can remain open for a long time. When the door is fully opened, a latch is activated in the device, which will hold the canvas in this position. To close the door, you just need to pull it slightly towards you. The lock will release and it will close smoothly. If the door is not fully opened, it will operate normally.
How to adjust the door closer with your own hands for each individual function is described below.
When to Adjust
Adjustment of the closer must be carried out when the seasons change. Since this is a mechanical device, oil is used for its proper operation, which changes its physical characteristics depending on air temperature. With its increase, the viscosity of the working fluid decreases, and as the temperature drops, the oil thickens. Therefore, in the first case, the door will open too easily, and in the second, significant efforts will be required. Therefore, in spring and autumn, you need to adjust the operation of the door closer mechanism.
In addition, the adjustment of the door closer is carried out in the event that there are problems in closing the door. They can be expressed as follows:
- too fast or slow closing;
- the door moves abruptly or with jerks;
- the canvas is not attracted to the frame for a long time.
How to adjust the closer correctly
Adjusting the door closer comes down to setting the operation of the valves inside the device, which act as a thermal damper. With their help, with changes in external temperature, the degree of increase or decrease in oil viscosity is compensated.
Adjusting the door closer with your own hands is not difficult. All you need is a screwdriver and knowledge of the setup process. Before proceeding with it, a visual inspection of the door is carried out and its operation is checked. This is necessary to identify violations in the work and their subsequent correction.
Adjustment is made with screws. In some device models, they are hidden under a protective cover that needs to be pushed back. In others, they are not hidden by anything and are located on the side of the device panel. For ease of adjustment, the screws are numbered 1 and 2. The first affects the overall closing speed, the second affects the strength of the cotton.
DIY adjustment instructions
The closing speed of the sash is changed by screw number one. Turning counterclockwise speeds it up. By turning the screw clockwise, the movement of the sash slows down.
The strength of the pop is the range in which the door begins to slow down before fully closing. If there is a problem with the catch, then you need to turn screw number two. By turning it clockwise, you can slow down the speed of the clap. Turning the screw in the other direction, counterclockwise, on the contrary, will increase its strength.
To set the function that holds the door open, you need to fully open it, and then tighten the special lock. After that, the door will remain open if you open it at an angle corresponding to a given degree.
When adjusting the closer, follow the instructions given in the accompanying instructions for the device. Always remember that in order to avoid damage to the device, do not turn the screws more than two turns from zero.
Periodically inspecting the door closer and adjusting it, if necessary, with your own hands, you will extend the life of the device and ensure comfort when using the door.
Today, many people install closers both at the entrance and at interior doors. This device requires constant careful maintenance. After all, the constant opening and closing of the door causes an imbalance in its mechanisms. All malfunctions of the device are eliminated by adjusting it. Let's try to figure out how to adjust the door closer with your own hands.
Mounting the device
It's not hard to do this job. Even a person without experience in such matters can install the device on their own.
Usually, a template is included with the door closer. He helps to complete the installation work. Installation is carried out as follows:
Instructions for use will help adjust your device. Correct adjustment closer is as follows:
- Typical mechanisms, for example, Apecs, Armadillo, 9n50, contain two screws. One allows you to adjust the speed at which the door leaf moves. According to the instructions, it is possible to turn it a certain number of times. And the second screw is needed to adjust the speed of the finish. The mechanism can be weakened or made more rigid. Adjustment is carried out by weakening or tightening the spring. If you tighten it, the closing of the door will slow down. When loosened, on the contrary, the opening of the door leaf is freer. The adjustment screw must not be turned more than once. Otherwise, the device will be depressurized, resulting in oil leakage.
- Dohlop setting. When it correct work the door doesn't close all the way. In other words, there is a gap until it is completely closed. Also, thanks to the clasp, the door leaf is pressed tightly against door frame. Adjustment of the closing speed is carried out by means of the second screw, which is located directly on the closer body itself. As soon as ten or fifteen degrees remain until the door is completely closed, the speed of the door slows down. Then there is a tight pressing of the canvas to the frame.
- Setting the open position of the door leaf. It is possible to adjust the closer so that the door is open for a long time. To do this, you need to know how to adjust the door closer. The mechanism has a very convenient "hold open" function. Due to it, the door is kept open. To set this function, you need to open the door a 90 degrees, and then tighten the latch. As a result, when the door is opened to a certain degree, it will remain in the same place.
The mechanism lock works and constantly holds the door leaf in the desired position for the required time period. To close the door, you need to slightly pull it in the direction of closing. Then the fix will be cancelled. When the door leaf is not fully opened, it moves in its usual mode without delay.
Video about self-adjustment devices:
Device self-configuration
In the closer mechanism, it is possible to configure only a few parameters: delay, closing and closing speed of the door. Modern mechanisms can be equipped with speed control in the range of 80-90 degrees.
When adjusting the mechanism with your own hands, it is important to know the following nuances:
- Closers are used for all types of doors - for external and for indoor. It is desirable to set the fast stroke for front door. This is necessary so that fewer insects and cold air enter the house. Room closers can be set to slow speed. When choosing a speed, factors such as seasonality and personal preferences of the residents of the house should be taken into account.
- If a lot of people constantly enter and exit the room, then it is necessary to set the door closer to an intermediate move. So you can organize the passage of several people in a row for one opening of the door. To keep the door leaf always open, you need to use the appropriate screw.
- When people adjust the closer on their own, they often forget about the catch. It is needed so that the door leaf closes faster. It is important to find the "golden mean". Then there will be no sharp slamming of the door or its impact on the door frame.
How to loosen the mechanism?
Often required auxiliary adjustment of the door closer. Sometimes it works hard. Then, to open the door, you need to make additional efforts. To make the door work more smoothly, you need to loosen the screws. If they are unscrewed completely, the door will be open permanently.
The location of the screws may vary. They can be in front or on the side, it depends on the design of the mechanism. The instructions will help determine the location of the screws. In it, the manufacturer indicates the position of all elements of the closer. Today there are several models of door closers that are very popular. Their advantages are ease of operation, and ease of installation and even adjustment.
The most popular models include:
- Dorma. Such devices are designed for installation on external and internal metal doors.
- Bulat. Frost-resistant door closers. Manufactured from high strength alloy steel;
- Diplomat. Manufactured from high strength steel. Such closers are resistant to sudden changes in temperature.
- Apecs. They have a function in which it is possible to adjust the permanent fixation.
The above models have a number of advantages. Therefore, they become more and more popular every year. Most of manufacturers produce closers from high quality materials. Due to this product, they last longer even in the most difficult conditions.
Advantages of door closers Dorma
Dorma manufactures strong and reliable door closers. Therefore, their products are popular. Today, the closer mechanism is in great demand. Dorma TS-68.
This model is mounted at the top of the door. This option differs in versatility and functionality.
After all, you can install such a device on almost any door. During installation don't need to use mounting plates . This greatly simplifies the work.
The Dorma model contains a special lever by means of which the door leaf locking force is adjusted.
The closer of this model can be installed both on the left and on the right type of door. Installation work are quite simple. Almost everyone can handle them. There are the following ways to mount the mechanism:
- From the side of the hinges;
- On the opposite side of the loops;
- Parallel installation. When using this method, a special corner is mounted on the opposite side of the hinges.
How to repair a closer with your own hands?
It should be noted that often Replacing a device is cheaper than repairing it.. After all, many manufacturers make a non-separable case. Therefore, the replacement of an inexpensive part, such as a cuff, is not possible. And the user is forced to purchase a new closer.
But a number of faults can be fixed by hand. The most common failure of the lever assembly. The main reasons for such a malfunction are a break in the lever, destruction at the place of its fixing. Also, the lever assembly becomes faulty when the rod breaks as a result of damage to the body. Such defects are eliminated by welding.
However, first you need to find out how expedient it is to repair the door closer. Perhaps a new rod will cost less than welding. When buying a new spare part, it should be borne in mind that it must be of the same company as the closer mechanism.
If the case of the device is disassembled, then repairs can be performed with the following tools:
- A set of hexagons;
- Pliers;
- screwdrivers;
- Simple wrenches.
Abrupt closing of the door is caused by wear of cuffs or seals. With such a breakdown oil is leaking from the device. When the closer mechanism is collapsible, then these elements can be replaced. Otherwise, you will need to purchase a new case or the entire mechanism.
It happens that the closer opens too slowly. The cause of this malfunction may be high oil density. As a rule, this happens after 4-6 years of using the device. In this case, it may be worth trying to change the oil. But, as a rule, this is not provided for by the design.
There is another way to change the oil. But for its implementation of this repair, locksmith skills are required. It consists in the following:
- Make a hole in the body;
- Cut thread;
- Drain the old thick oil;
- Pour in new oil through the fitting.
The oldest door mechanism that slammed the door was a tied cobblestone. But with the development of scientific and technological progress, we are used to living and not overworking. It was then that the closer was invented. The cobblestone was replaced with a spring. She gave an impulse and the door automatically closed. Soon this design was replaced by a smooth and even mechanism. Special devices have slightly changed the process, but the essence remains the same. Therefore, we all need to know how to adjust the door closer.
This is a modern device for automatically closing the door.
Closer types
This mechanism reduces the load and allows you to smoothly close the door. This device can be equipped with any door in the room - it does not matter if it is an entrance door or an interior one. Installation is different and depends on the type of mechanism. They are divided into the following:
- overhead mechanism, which is installed on the box beam or canvas, in door hinge instead of a rod;
- floor structure - it is laid during the installation of flooring;
- hidden device - it is located in a box or canvas and must be powerful. This type will require milling.
Choose the type of door closer depending on the weight and width of the canvas: the larger these indicators, the more powerful the mechanism should be chosen.
We adjust the closer
Before you buy a closer, you need to choose it in accordance with the parameters. If properly operated, then you will never have to deal with issues of repair or replacement. But in addition to repairing at the very beginning, for normal operation, you need to know how to adjust the closer at the door.
Change the speed
In order for the door to close smoothly and not slam, you need to adjust the speed. Oil flowing from side to side regulates acceleration. It flows during movement and is responsible for the operation of the spring. Modern closers have two valves that are responsible for the flow of oil. Closing is divided into two stages:
Expensive models also have a third valve - 80–90 degrees before closing. But usually two is enough. In summer, the speed is higher, and in winter it decreases slightly. The bottom line is that the viscosity of a liquid is determined by temperature. environment. When winter comes, we additionally set up the first valve, which is responsible for the main speed.
Door fixation
To fix, simply change the position of the adjustment screw. If you adjust the door closer correctly, it will work automatically, and you can only remove it from the fixed position yourself. It is possible to adjust the closer with a gear lever only using a special lever system. To change the fixation, it is necessary to put the structure simple and without the fixation mode. But if you decide to use it for fixing - don't worry, there is nothing complicated here: we fix it at an advanced angle and unlock it ourselves.
If it is necessary to adjust the sensor with a sliding lever, then you should pay attention to the springy stupor. The door is fixed when it reaches a certain angle, and the stupor is released. You just need to open it wider, and the latch itself lowers it.
How to strengthen the spring?
The work of the spring depends on the flow of oil, as well as its speed, respectively. As we already know, the flow of oil is controlled by valves, and this is enough to strengthen or adjust the work of the spring.
Adjustment features:
In the video, an example of adjustment:
After following all the steps correctly to adjust the door closer, you can safely use the door. If the adjustment does not help to cope with the shortcomings when closing, then the reason is the installation. It will be difficult to do something on your own here. The best option is to call the wizard and reinstall the door closer. Use automated things and let your life be comfortable.
