Door closer pneumatic adjustment. Adjustment of the door closer according to the closing force: instructions. Travel speed adjustment

The closer allows the door to close smoothly and without shock. This increases the service life of both door leaf, and castles. Due to the fact that the door closer is constantly subjected to heavy loads, it must be carefully and regularly looked after to ensure the normal and reliable operation of the mechanism. It is enough to make the necessary adjustments and the device will work flawlessly for many years. There are several options for regulation, you can do all the settings yourself, you just need to know how to do it right.

When is door closer adjustment needed?

The modern door closer appeared relatively recently. Its task is to ensure smooth closing of the door leaf. Such devices can be installed both on entrance and interior doors in houses and apartments, and in offices, shops, entrances, etc. Previously, a spring was used to close the door, but at the same time the canvas slammed shut with a thud and a blow occurred, which led to a quick failure of both locks and door leaf.

If earlier springs were used to close the door, now - modern devices called closers

The presence of a closer on the doors suggests that when opening them, it will be necessary to apply a certain force, which accumulates in the mechanism located inside such a device. When closing the canvas, the door closer smoothly returns the door to its original position.

Before proceeding with the description of the process of adjusting closers, it is necessary to briefly familiarize yourself with their types. On sale you can find mechanisms of the following types:

• spring. This is the simplest model, which works by compressing the spring when the door is opened, after which it unclenches and the canvas closes;

  The spring closer is simple in design, as it works by compressing the spring

• cam with sliding (slide) traction. His work is based on the smooth sliding of the slide thrust. This mechanism is usually used for light weight door panels, as well as where such indicators as compactness, smooth running and small size closer;

  The cam closer has a sliding (slide) traction

• gear driven closer. This is the most common option. His work is based on the movement of the door under the action of gears. The toothed closer is more durable, so it can be installed on heavy doors.

  The operation of the gear closer is ensured by the gears present in it.

In addition, it is necessary to determine the types of door closer according to the installation method:

• overhead. These are the simplest models that are mounted at the top of the door. They are usually mounted on the front doors to a house or apartment. It is easy to adjust overhead closers; for this, there are special screws on the mechanism body;

  The overhead door closer is attached to the top of the door

• floor. These models also have simple design, but their installation is carried out on the floor. In houses and apartments, floor models are practically not used. They are mainly installed in offices, shops and other institutions with high attendance;

  The floor closer is fixed on the floor

• hidden. Such structures are difficult both to mount and to regulate. This is due to the fact that they are either inside the door or in the floor, so getting to them is difficult.

  A hidden closer is hidden in the door leaf, frame or in the floor

In what cases it is necessary to adjust the closer

The door closer is operated in intensive mode, therefore, to ensure its normal operation, it is recommended to carry out adjustment work at least twice a year. If the attendance of the premises is high, then the adjustment may need to be carried out more often.

Since there is oil inside most closers, adjustments must be made in the warm and cold seasons. This is due to the fact that when the temperature changes, the density of the oil also changes and the smooth operation of the device will depend on this.

There is oil inside most closers, its density depends on temperature, so adjustments must be made in the warm and cold seasons

It is necessary to constantly monitor the operation of the mechanism. If you are not satisfied with the speed of closing the door or it happens with jerks, and the canvas is not attracted well, to eliminate such shortcomings, it is necessary to adjust the closer.

Is adjustment required after installation of the device

Depending on the design of the closer, the location of the adjusting screws will differ. Despite this, the adjustment is carried out according to the same scheme - when the screws are rotated clockwise, the speed and force of the mechanism increase and vice versa.

Since the weight of the door leaf on which the closer is mounted can be different, adjustment should be carried out immediately after installation. Turn the screws very slowly. It is recommended to do no more than ¼ turn, after which it is necessary to check the operation of the closer. If the screw is loosened more than 2 turns, it may fall out of the socket, and this will lead to oil leakage.

Since the weight of the door can be different, it is necessary to adjust the door closer immediately after its installation.

Immediately after the installation of the door closer, they check its performance and if something does not suit, they make adjustments. The speed at which the door leaf will close is changed by turning the corresponding screw. If you need to adjust the catch, use another screw.

Video: how to choose a door closer

Door closer adjustment

Now that you know the types of closers and decide which one is installed on a particular door, you can start adjusting it.

Although there are several types of closers, the principle of adjustment will be almost the same. Regardless of whether an overhead, floor or hidden mechanism is installed, you first need to study the instructions and determine how many adjustments this model has. The simplest mechanisms have only two adjusting screws located on the body of the device: one is responsible for the closing speed of the web, and the second for its closing. After that, the necessary function of such a device is adjusted. The process of adjusting hidden structures will be more difficult, but here you can do it yourself. It is enough to figure out where the adjusting screws are located and use them to adjust the necessary indicators of the closer.

To perform the work you will need the following tools:

Before proceeding directly to the adjustment, it is necessary to determine what the following terms mean:

Door speed control

The first step in adjusting the door closer is to set the closing speed. It is recommended to set a high door closing speed on the entrance doors so as not to lose heat; for interior doors, this figure depends on the preferences of the owners.

At door closer, depending on its model, there can be from 2 to 5 adjusting screws, their purpose should be found in the instructions for the purchased device.

To adjust the door speed:

Throttle adjustment

The closing speed can only be adjusted after the door closing speed has been set. To adjust this parameter, you must use the second screw, which is on all door closer models:

Open position control

If it is often necessary to fix the door in open position, you need to buy models with an adjustment called hold open. This function is used when it is necessary to bring in or take out large items from the room:

How to loosen a door closer

If the doors are difficult to open, loosen the door closer. To do this, loosen the adjusting screws a little and ensure that a little effort is required to open the door leaf.

To loosen the closer, you need to unscrew the adjusting screws a little.

Setting the closing delay

Sometimes there are situations when it is necessary that the doors close not immediately, but with some delay. This feature is also not available on all models. To understand if it is on your door closer, you need to look at the number of adjusting screws. There should be more than two of them, and the purpose of each of them can be found by studying the instructions. This function allows you to configure the door closer so that several people can pass at the same time while the door is open. It is especially relevant in hospitals, shops, educational institutions.

Setting the door closing delay:

Video: closer adjustment

During self-adjustment of the door closer, one must adhere to the basic rule: the adjusting screws must not be unscrewed by more than 2 turns. Almost all mechanisms run on oil, and if you unscrew the screws more, it will begin to flow out. Oil is poured into the device under pressure, so you won’t be able to fill the closer yourself and you will have to buy a new mechanism.

To ensure the maximum service life of the door closer, certain requirements must be met:

If you really need to fix the door, and the closer does not know how, some craftsmen disconnect the lever rods and turn off the closer in this way completely. To implement this method of fixation requires a certain amount of time and effort. To do this, use a screwdriver or wrench to unscrew and pull out the screw connecting the two lever rods. If the need to fix the door leaf occurs frequently, it is better to purchase a door closer with the appropriate function.

The door closer is pretty simple mechanism, and if it is properly operated and adjusted in time, then it will work for a long time and reliably.

Video: features of operation and adjustment of the door closer in winter

The door closer, like many other devices, requires regular and thorough maintenance. The constant loads associated with the daily opening and closing cycles create an imbalance in the nodes of this device. You can fix such troubles yourself. On the request “how to adjust the video closer”, you will find the desired video. The article will tell you the rest.

To imagine how to adjust the door closer, you should get acquainted with their types and features.

Advantages		Flaws
	In this system, the pinion and toothed piston are in constant mesh. In this case, the piston moves along the axis when the blade rotates. At the moment of its opening, the lever of the structure moves along an arc. When the gear shaft rotates, the piston moves horizontally and compresses the spring. Releasing opens the spring, which pushes the piston in the other direction, and the structure closes.
	In this case, the sliding guide is located on the surface of the opening frame or on the canvas, there is no shoulder for optimal force transfer, which does not allow the force process to proceed favorably. Modern designs have a cam located between two pistons: brake and opening. When opened, the cam evenly compresses the spring through the piston. Opening the spring moves the opening piston back, the cam returns to its initial position, and the brake element holds the door.
	The installation of such modifications should be taken into account at the design stage. Due to the lack of a lever mechanism, such closers have a large torque on the axis, which requires the installation of a more powerful structure. The force lock roller reliably ensures the synchronization of operation and hydraulics.
	The device has an internal mechanism that serves as a shock absorber. When closing, the hinges prevent the blade from hitting and ensure smooth movement of the opening. This greatly reduces the chance of injury and reduces the load on the door.
	In this design, there are protruding spring-loaded pins, which can be hooked on and then break the mechanism. To prevent this from happening, you need to place the product at the highest points. However, this may reduce the strength of the structure.

When to adjust the closer

The correct operation of the device depends on its proper maintenance.

For this:

• It is necessary to conduct an inspection at least once every six months, especially when the seasons change.
• Minor damage should be repaired immediately. It can be:

1. Hard work of the opening mechanism.
2. Too fast opening.
3. Sharp, with jerks, their opening, or vice versa - too tight.
4. Slow web movement.

Tip: If the closer is broken, the mechanism needs repair, the price of which can be significant.

• Closers are adjusted during installation of devices (see), and during their operation. Due to the decrease in outside temperature, the viscosity of the oil used in the fixture increases, which can lead to a decrease in the speed of closing the door. This requires additional adjustment of the input equipment with the onset of winter.
• The frequency of adjustment of the closer is affected by the duration of its previous operation, the weight of the canvas, the frequency of movement through the opening.
• The closing mechanism must be adjusted 2-3 times a year.

Operating rules

When operating closers, it is necessary to follow very simple and understandable rules.

The devices do not have various anti-vandal mechanisms, which requires very careful and rather delicate handling. After choosing a door closer, you need to make sure that its characteristics correspond to the conditions where the device will be installed.

Wherein:

• Closers by class are divided from small - EN1 to large - EN7. This indicator is taken into account when choosing a device. Classes depend on the mass of the closer itself and inertia: the weight and size of the blade arm. For example, a device rated for a web weight of 40 kg (EN1) will not be able to close metal door, whose weight is 120 kg (EN7).
• Do not assist the device in operation.
• Do not leave the door leaf open if the mechanism does not have a locking function.
• Do not unnecessarily turn the adjusting screws installed on the valves.
• It is necessary to coordinate with the seller of the equipment left or right opening.

Closer adjustment

Before adjusting the door closer, you must have:

• Pliers.
• Wrenches.
• Screwdriver.

According to the instructions attached to the product, you can make adjustments to the device with your own hands. Several functions available in the movement can be adjusted by simple methods. And how to adjust the closer, the video will tell.

Travel speed adjustment

The work of the closer is similar to the work of an automobile shock absorber.

Wherein:

• The man, with some effort, opens the door.
• With this force, through the built-in system of levers, the power spring of the closer is compressed.
• The spring is charged, and when released, it begins to reverse.
• The spring transfers its force to the rod or gear rack, which, through this system of levers, tries to return the structure to its original position.
• The rod, moving in an oily environment, conducts the composition through the jets.
• Due to the hydraulic resistance of the jets, the oil prevents the movement of the stem.
• The spring continues to push the rod with force, and the door begins to close at a certain speed.
• To change the speed, the cross section of the jet, which passes oil, decreases or increases.

To change the speed in the devices, an adjusting screw is installed. In the photo below, it is marked with the icon "C".

Turning the screw changes the closing speed of the doors. This is how the Diplomat door closer is adjusted. Its adjustment screws are located on the end of the device. In this case, the speed of movement of the leaf can be changed in the range of door opening from 15° to 180°.

Tip: Adjusting the closing speed should be done very carefully. If the adjusting screw is completely turned out, the system will be depressurized and oil will leak. The driver will fail.

Adjusting the speed of closing the door should be carried out regularly, at least every six months. This is necessary for preventive purposes, and because of the possible change in the physico-chemical properties of the oil. To better imagine the process, you should watch the video in this article.

Dohlop installation

Such a function as a catch is very relevant. This adjustment is especially important for door designs with soft seals, combination and magnetic locks. What and how to do will tell the video.

It is very important for such doors how the moment of their closing occurs. The range of movement of the web is in the range from 0° to 15°. In this range, the canvas should close slowly and reliably enough.

Tip: Do not allow an increase in the dynamic load on the mechanism, or incomplete closing of the door.

To adjust the door closers, a screw for adjusting the latching is provided. When it rotates, the characteristics of the movement of the web will change in the range of 15 °.

Screws for adjusting the speed and rebound are located on the panel next to the product.

The end screw, as well as speed adjustment, requires great care when working with it.

Adjustment of the closing should be carried out only after the debugging of the speed of the doors. By turning the adjusting screw clockwise, you can reduce the speed, and against it, you can increase it.

Tip: To avoid technical problems, do not make more than two turns of the screw counterclockwise.

Adjustment of the open position of the door

There are times when the door needs to be kept open for a long time. open form. In this case, you need to know how to properly adjust the door closer so that the opening is open.

The mechanisms have a hold open function when the doors are open. Its adjustment is carried out with the door open at 90 °, by tightening the latch.

After that:

• The doors remain open when they are opened to the desired degree.
• The device triggers a latch that holds the door in the open position for the required period of time.

• To close the door, just pull it slightly towards you, and the fixation will be removed.
• With incomplete plowing, the canvas moves in the normal mode without delay.
• The spring tension is set by the adjusting nut.
• By turning it clockwise, you can increase the opening angle of the door. And turning it counterclockwise increases the effort to move the door leaf.

Device models are available with an additional hold-open function that allows you to lock the door at an angle from 90 ° to 100 ° for a certain time, for airing the room or for other purposes.

For each type of door, it is necessary to choose the right door closer - the device and adjustment of all functions of the device must be carried out as recommended by the operating instructions. Installing the device on the door reduces the load on the hinges when moving the leaf.

To prolong the life of the door leaf, you need to carefully close it. If at home you can warn, then in public places it is unrealistic. For smooth closing of the door, a mechanism is installed. After installation, you need to configure the work. Do-it-yourself door closer adjustment is easy. Information about the sequence of work can be found below.

The closer allows you to automate the closing process. The need for it is especially noticeable if there is a magnetic lock.

There are several types that differ in designs:

• spring mechanisms are the simplest;
• cam slide - for lightweight structures;
• with gear drive - for light, heavy structures.

Previously, simple springs attached with nails served as closers. Closing the door was carried out strongly, with a characteristic sound, which often caused breakage of the canvas, the appearance of cracks, shedding of the finish.

When spring structures equipped with a piston, the movement of the canvas became smooth, but the essence remained. Closer - a spring hidden in a one-piece body, which is moved by a piston. In the middle of the piston structure is a gear wheel, the rotation of which is regulated by a lever, screw, valve.

According to the installation method, they are distinguished:

1. Overhead closers. They are easy to use and easy to install. Adjustment is carried out by valves, handles, screws located on the device box. The number of allowable scrolls is specified by the manufacturer.
2. Floor mechanisms are attached at the bottom of the door leaf. They are not used in private households. Adjusting the device is simple, but difficulties may arise due to the low location of the structure.
3. It is difficult to set up hidden structures on your own, since their design is built into the canvas, the wall.

The manufacturer indicates the position of the adjusting mechanisms in the instructions, so if there is any doubt that there are no screws, you should try to read the paper that comes with the closer.

How do you know if an adjustment is needed?

In order not to wait for the closer signals about the need for tuning, you should check the performance every 3 months - this is a fairly long period. Prevention will provide an opportunity to detect a malfunction at the initial stage, adjust the work, replace.

Be sure to adjust the door closer for the change of seasons. The mechanism is hydraulic, it has oil inside, which, when the temperature rises and falls, changes its consistency. When the temperature is closer to winter, the oil thickens, becoming liquid in summer.

The design should be corrected if problems are found. Among them:

• braking of the door leaf when closing;
• slamming at high speed;
• jerky movement.

If the door closer is broken, then the effectiveness of the adjustment is minimized - it must be repaired.

Required Tools

For adjustment you will need pliers, spanners, screwdriver. This set of tools will be enough for a simple adjustment, but if there are problems in the mechanism, you will have to stock up on additional materials: replacement parts, oil.

Adjustment process

Device manufacturers allow you to configure three parameters: closing speed, delay, and aftershock. In new models, you can adjust the door speed in the region of 80-90 degrees - this is an additional feature.

With the help of screws, you can set the delay, increase smoothness, speed up the catch. For each individual setting, it is necessary to turn the adjusting mechanisms in a certain direction. Be sure to read the instructions before starting work. Manufacturers paint detailed sequence actions to achieve results.

How to adjust the closer on the door with your own hands - a brief instruction:

• adjust the catch;
• weaken, tighten work;
• set the appropriate speed;
• set up an intermediate stroke.

Working with screws

In the instructions, the control valves are marked as 1, 2, so they are easy to find on the body. You can turn in both directions, but no more than two full turns. The first screw is responsible for the movement of the canvas in the region of 15-180 degrees, the second - 0-15. In new models, there is a third valve, the purpose of which is regulated by design features.

Retract adjustment

Setting the parameter is similar to adjusting the travel speed. To adjust, just turn the responsible screw. Dokhlop - the speed of closing the door at the last interval of 20-25 cm. The acceleration of the stroke leads to an increase in the force of impact of the leaf on the box, which negatively affects the condition of the door and finish. Dohlop should be adjusted moderately.

Closer loosening

By adjusting the degree of spring tension, you can weaken the working stroke or tighten it. It is better to do this carefully, turning the screwdriver, adjusting the work with screws. After scrolling the screw mechanism, it is necessary to check the operation. If the changes made suit you, you can seal the case with a protective shell.

Speed ​​control

It is necessary to regulate the operation of the structure upon completion of installation work. It is better if the master who carried out the installation does the setup. If the door closing speed is not satisfactory, you can tighten the adjusting screw. Set delays at each stage should be moderate.

For braking, it is enough to turn the valve half a turn. Move in a clockwise direction. To speed up the closure, the actions are carried out in reverse. By turning the screw to the right and left, adjustment is carried out until a result is obtained.

Intermediate travel setting

The parameter adjusts to the speed of closing the doors, but you can slow down the canvas halfway using the third screw. It is responsible for holding the object in the specified position. By turning it to the left, to the right, you can speed up, slow down the movement of the canvas in the middle interval. The third screw can be made so that the door remains open for a certain time.

What should be avoided when setting up a closer with your own hands?

A little useful tips to help avoid damage to the mechanism:

1. It is impossible to turn the screw, adjusting the work, from the zero point more than two turns, because there is oil in the mechanism that can leak out.
2. Skews disable any mechanisms, so during installation, you must carefully check the corners.
3. Do not put pressure on the canvas and the mechanism with heavy objects.
4. Do not hang heavy things on the door leaf, so as not to warp the diagonal.
5. Don't prop up.

By following these points, you prolong the operation of the mechanism.

What to do if nothing works?

There are several reasons why the setting may not work:

1. An unsuitable mechanism has been selected, the door is too heavy, frequent hanging of heavy objects on the canvas.
2. Incorrect fastening of the iron corner, skewed parts.
3. Displacement of holes for self-tapping screws on which the device is mounted, unscrewing.

If one of the above points is suitable, then there are only two ways out - change the door, put another door closer. There is a third option - try to fix it yourself, but lack of experience can lead to deterioration.

The lever must be located strictly perpendicular to the canvas, otherwise one of the parts must be moved.

In order for the mechanism to work correctly, some measures must be observed:

1. Do not prop the door with objects, because to fix the position, it is enough to turn the screws.
2. Before adjusting, you should read its instructions to familiarize yourself with acceptable standards that are specified by the manufacturer.
3. When buying a mechanism, you should know temperature conditions, under which it will work, because many models are designed for warm rooms.
4. If a malfunction is detected, you should call the wizard so that the actions do not aggravate the problem.
5. The floor closer is installed at the stage of mounting the door, which must be taken into account when buying a device.

The adjustment is carried out by carefully turning the screws, because it is easy to break the hydraulics, which will lead to a malfunction of the mechanism, which will be difficult or almost impossible to restore. Before setting up, you need to make sure that the cause of the poor performance of the device is in the closer.

Closer - a small device designed to smoothly close the door. It not only minimizes the risk of injury to people, but also protects door structure- hinges, accessories - from rapid wear. How do you adjust the door closer with your own hands?

Types and arrangement of closers

The working element of the closer is a spring enclosed in a container with oil. Devices differ in the way of installation:

Top overlays;

built into the frame;

Embedded in the floor.

The closer drive can be crank (lever) and cam (leverless). Simple Models mechanical, more complex ones work from the mains.

Operating loads are indicated in the passport and directly depend on the dimensions and weight of the web.

In addition, each model has a range of permissible temperatures. The working medium of the door closer is oil, its consistency depends on the outside temperature: the colder, the greater the viscosity.

The operating parameters are controlled by a valve system - a thermal damper. Its purpose is to compensate for temperature differences by reducing or increasing viscosity.

At the border of the seasons, adjusting the closer becomes a necessity. Otherwise, one fine winter day, you will find that your door is “frozen”.

If the door leaf closes at the wrong speed (too fast or too slow), adjustment is also necessary.

Important: The device will only work properly when correct installation. When installing, make sure that a right angle is maintained between the lever and the door.

Adjustment Instruction

Instructions on how to adjust the door closer are included. If not, then see below. Consider the most common design - the top overhead closer.

Video "How to adjust the door closer":

There are two screws on the end of the device. The first screw regulates the movement in the angle range from 15 degrees to 180. The second controls the closing speed: by tightening it, you reduce the speed, by loosening it, you increase it. By manipulating both in turn, you achieve the right job. Some recommendations:

To increase the finishing speed, you need to turn the second adjusting screw clockwise, for the opposite effect - against.

The spring tension is changed by turning the adjusting nut. With its help, the door closer is adjusted according to the opening angle.

Video "How to adjust the door closer with your own hands":

It is possible to suspend the movement of a door opened at a right angle (hold-open function). To do this, the canvas is retracted 90 degrees, the latch is tightened. The option is useful when open door some cargo needs to be carried.

If the door is open 90 degrees or more, it will stop completely. To set it in motion, you need to pull the handle. If the angle is less than 90, the door will smoothly close normally.

You can turn the adjusting screws from the zero mark no more than two turns. If you adjust the door closer with your own hands, then you should remember that it is not allowed to unscrew the screw completely.

When the valves are displaced, oil leakage inevitably occurs, the device becomes inoperative.

Video "How to adjust the door closer":

So that the closers are not subjected to unnecessary loads, you should not exert additional force on the closing door and support it with anything.

Features of Dorma and Geze

The German door closer Dorma is designed to work in the temperature range from -30 to +40. Adjustments of the Dorma closer are carried out by two valves.

The force must comply with the European standard EN. The setting depends on the type and dimensions of the door. The force is adjusted by moving the body relative to the hinges or by turning the lever.

Geze closer adjustment is carried out by the hold-open function, which operates in the range from 70 to 150 degrees. In addition to the usual models of this brand, there are devices with smoke protection: in the case there is a switch with an electronic unit that is triggered by smoke.

In such a simple way, do-it-yourself door adjustment is made. The main thing is not to overdo it and serve it on time.

Sections of the article:

A door closer is a device that allows the door to close on its own. The smooth movement and the absence of flapping impacts protect the sash from damage, which prolongs its service life. The density of entry of the door leaf into the frame eliminates the possibility of cold air entering the room, maintaining an optimal microclimate in the house. Adjustment of the door closer for closing force and travel speed is required during initial installation and several times a year to maintain proper operation. How to adjust the door closer with your own hands - read our article. And as much as possible reveals the topic of the video posted at its end.

When Adjustment Is Required

The first adjustment of the device is carried out immediately after its installation on the door - the most convenient mode is selected in terms of speed and closing force. Closers for entrance doors during operation, the closing speed is reduced with the onset of negative temperatures, since the engine oil inside the mechanism at low temperatures acquires a high density, which makes it difficult for the piston to work. In order not to have to make unnecessary efforts when opening, and the room is not blown out during a long closing of the door, adjustment of the door closer is required.

Please note that depending on the model and cost, closers are resistant to negative temperatures. Therefore, before buying, it is recommended that you familiarize yourself with the temperature range for the normal operation of the device, which is indicated in the instructions or product data sheet.

The frequency of adjustment depends on the duration of operation, the severity of the door leaf, the level of patency of people. Usually the door closer is adjusted every 4-6 months.

Closing speed adjustment

Before you start adjusting the closer, the surface of the door, frame and hinges is inspected for damage that could affect the violation of the correct operation of the mechanism. The main parameter for adjustment is the closing speed of the door leaf. Too fast or too slow movement of the blade is adjusted by turning the first adjusting screw in the direction or counterclockwise.

It is not recommended to turn the adjustment screw more than two turns or unscrew it completely, as this will lead to a failure in balancing the device, which is quite difficult and dreary to adjust. In some cases, excessive rotation can lead to a breakdown of the mechanism, for example, leakage of oil, which is poured into industrial environment under pressure. Therefore, pouring grease into the door closer will not work on its own. It is usually enough to turn the screw a quarter or half a turn, which will already significantly affect the closing speed of the sash.

Retract adjustment

Dohlop is called the distance of 10-15% of the open position of the sash until it is completely closed. Adjusting this indicator allows you to change the speed throughout this section, usually slowing down the movement of the sash, which allows you to safely enter doorway both for an elderly person, a child, and for a customer to leave the shopping center with full bags. You can set the closer to increase the speed of the close-up by turning the second valve clockwise. To prevent the door from slamming, you will need to reduce the slamming speed by turning the valve in the opposite direction.

Please note that the adjustment of the rebound is carried out only in the position of the full opening of the sash.

Opening angle adjustment

The opening angle of the door leaf depends on how strongly the spring is stretched inside the door closer. You can tighten or loosen the spring by turning the adjusting nut. Turning the nut counterclockwise loosens the force of the spring, allowing the door to open with less force than a tight spring. In addition, a closer with a weaker spring allows the door to open wider, which is convenient when bringing in / taking out large furniture. Highly tensioned spring mechanism to open - best option for a door, which is characterized by a minimum distance between the opening and a row standing wall. Such an adjustment eliminates the possibility of damage during the impact of the sash on a closely spaced perpendicular wall.

Please note that all information on how to adjust the door closer is in the instructions or product passport, which is mandatory complete with a device for self-closing the door.

Fixing the open sash

Some models of closers are equipped with a special latch that allows you to fix the door leaf in the open position. Such a function is very convenient for use in public places, such as hospitals or shops, when you need to bring in / take out something overall. A tightened latch does not allow the door to close open more than 90 degrees. When opening less than this indicator, the closer works in normal mode.

In the event that adjusting the closer did not help to establish a comfortable mode of opening / closing the door, it is recommended to remove the product and install it again, since a mistake could have been made during the initial installation. Before reinstalling the door closer, check the door leaf and hinges for damage that could cause the mechanism to malfunction.

To ensure long-term operation of the closer, in no case should you press on the closing sash to speed up the process, since the closing lever system may not be able to cope with the force, break or cause oil to leak from the mechanism. It is also not recommended to slow down the closing speed of the door by holding the sash or fixing it with any objects, this can also lead to malfunctions.

If necessary, the closer can be turned off for a while, simply by disconnecting the parts of the lever from each other, which will ensure the free movement of the door structure.

Before installing or tightening the door closer, first read the information in the instructions, and then go directly to adjusting the mechanism on the door.

Before buying, it is recommended that you familiarize yourself with such parameters of the mechanism as resistance to negative temperatures and maintaining the maximum weight of the door leaf. A closer designed for indoor use will fail with the onset of cold weather. The mechanism for interior door, is not able to withstand a heavier metal entrance door, which will lead to its breakdown.

Regular adjustment of the door closer will not require special skills, financial costs and a lot of time, but will ensure proper operation and a long life of the mechanism.