In detail: do-it-yourself door closer repair from a real master for the site my.housecope.com.
In modern life, closers are used everywhere, this element is an integral part of entrance iron and plastic doors, which have a large mass and general availability. You can come across this element and its repair everywhere. However, how to repair a door closer yourself? In this text, we will analyze a specific example of repair and adjustment of closers that are used for entrance plastic and metal doors.
It looks like a simple door closer
Before talking about methods of dealing with malfunctions, special attention should be paid to some reasons that can cause a breakdown of such a reliable structural element as a door closer. The causes of malfunctions may be as follows:
Oil leakage in the closer cylinder. The most common malfunction, which is accompanied by a quick slamming of the door or a strong force to close it. Faced with this misfortune, it is necessary to replace the oil cylinder and adjust the closer.
The internal structure of the closer mechanism
How to repair a door closer? This question can be encountered when this structural element is present in the door structure. All troubleshooting work can be done yourself with a small tool at hand.
Names of elements of the closer mechanism
It is worth noting that the earlier the closer is repaired or diagnostics performed, the more chances are to fully restore it, rather than resorting to buying a new such mechanism, which, in turn, is not cheap.
Video (click to play).
Typically, a door element such as a door closer consists of two separate components, namely:
a working cylinder in a body filled with oil contains: a spring, a needle bearing, a gear train and a device that allows you to adjust the closer with your own hands;
two link arms and a connecting screw, it is this design that allows the door to close smoothly.
There is a spring inside the metal body, which allows accumulating the force that is applied when the sash is opened. Thanks to the oil that is located inside the body, it gradually straightens out, and does not come into sharp movement.
Spring-loaded door closer design
It is due to this spring that the entrance leaf moves smoothly. The movement of the door closer is regulated by two connected levers, where one is attached to the door, and the other to the device itself. They are connected to each other with a special screw.
A very common reason when a door closer needs to be repaired. In this case, the oily liquid that fills the working mechanism completely or partially flows out, which leads to the sharp operation of the spring and the corresponding slamming of the door.
Such a malfunction can occur during prolonged operation of the device without proper adjustment according to the instructions.
Door closer adjustment diagram
The design of the door closer includes small recesses where the adjusting screws are present; if they are torn off or incorrectly adjusted, oil liquid can flow through these holes.
If the speed of movement of the structure is too sharp or too slow, then you should pay attention to these parts, when oil flows out, characteristic oil spots will be visible on them.
Is it possible to repair door closers when oily fluid leaks out? If a small part of the device has left, then this is possible in the absence of liquid from the part of the closer, which is responsible for the smoothness of the movement, then repair is not advisable.
In this case, it will be much easier to purchase the same model of the closer, but without mounting levers, it will cost significantly less. With a slight leakage of liquid, it must be topped up in the required amount. For this, the structure is completely dismantled. Oil is poured through a special hole.
VIDEO The second malfunction, which can also overtake door closers, is a malfunction or mechanical damage to the lever. With this reason for the breakdown of the closer, it will not be difficult to deduce the malfunction, since it will be visible visually. Most often, a breakdown occurs under the following circumstances:
Door closing speed adjustment process
deformation changes in levers;
rust and corrosion of the metal surface of the rods;
fracture or complete fracture of the lever;
partial seizure of the mechanism associated with the fastening screw.
These breakdowns of the closer can be visually identified during the initial inspection of the mechanism. As a rule, the part is in a conspicuous place, and it will not be difficult to identify the cause of the appearance.
The device and design of the closer mechanism
In this case, you can use the following troubleshooting options:
If corrosion appears, remove the mechanism and thoroughly clean its surface from rust. After that, it should be covered with primer and paint, and then the structure should be returned to its original place. As a rule, after such actions, the closer will work like new.
A fracture or fracture of the levers is eliminated by welding or replacing these mechanisms with similar ones.
If the cause of the malfunction lies in the fastening screw, then it should be unscrewed and thoroughly lubricated with grease the entire working surface, after which the screw is placed in its original place.
If the levers are deformed or changed, they should be removed and carefully straightened to a level state. If this is not possible, then the parts will have to be replaced with analogues.
It is worth noting that negligent use of the mechanism leads to a breakdown or other malfunction of the levers. To avoid this in the future, you should be careful with the mechanism and the doorway as a whole.
As with any other mechanism, the careful operation of the door closer and the spring, which ensures smooth movement, should be operated with some precautions, namely:
when closing the sash, you should not help the closer, carry out the vestibule;
The principle of the door closer
The video tells about the operation of the door closer in the winter.
VIDEO Do-it-yourself door closer repair is a necessary measure to extend the service life of the mechanism and maintain its operational characteristics. Of course, not all defects can be eliminated on their own, but some of the breakdowns are quite within the power of every real owner.
With improper or rather long-term operation, sooner or later you have to face the task of repairing a door closer with your own hands.
If the damage is serious, you will have to completely replace the product, which is quite a costly affair, so it is not worth delaying the repair.
In order to eliminate the breakdown and prevent it in the future, it is necessary to find out in advance the cause of the defect. The most common causes of problems with a door closer are:
Unfavorable weather conditions. These include rains, constant dampness, sudden changes in temperature, especially plastic boxes and metal open parts.Sharp movement of the canvas. If the door is opened or closed by one's own efforts faster than it is suggested by the closer settings, this will inevitably lead to its breakdown.Blocking door movement. This situation is relevant for those systems that do not imply a door opening delay of 90 degrees or more. If you put a stone under such a door, it will not close, but this will negatively affect the mechanism.Closer overload. We are talking about the selection of an insufficiently powerful door closer for heavy doors, and overload can also occur if you hang on the canvas or ride on it, which children love to do so much.Schematic design of a door closer
In winter, temperature changes can lead to breakdown of the main part of the door closer, which is responsible for the smooth movement of a heavy door. This is a body filled with an oil composition. Without this fluid, the mechanism will lose some of its properties and turn into the most ordinary spring, as a result - the door will be attracted more sharply and with a huge noise. To prevent the complete failure of the closer, it is necessary to repair it as early as possible, otherwise you will have to completely change the part.
How to fix an oil door closer? First of all, determine the specific location of the leak. Such a defect occurs when the box is depressurized, for example, when it is damaged. You can fix the problem with a simple sealant. However, keep in mind that such measures will only help to eliminate a defect of an insignificant size, if the crack is too large or at the time of the repair, quite a lot of oil liquid had time to leak out, further measures will have no effect. Then, in any case, you will have to change the door closer.
There are times when the oil was not initially refilled at the plant. In this case, refueling is required. You can fill the closer with synthetic engine oil or a cheaper option - shock absorbing fluid. Filling with oil is done through the holes of the adjusting screws after unscrewing them.
Ordinary engine oil is suitable for refueling the closer.
It is much easier to notice changes in the lever assembly, we are talking primarily about the barbell. This part is in the most conspicuous place, so from time to time you should pay attention to it and check the condition of the mechanism. If the slightest damage occurs, the lever should be repaired as soon as possible.
How to repair a damaged bar on a door closer:
If the part is covered with rust, this indicates that ordinary steel was used for its manufacture. In this case, it is necessary to carry out a cleaning from corrosion formations and treat the parts of the mechanism with a special protective grease.
If a break occurs, the defect can be repaired by applying a welding method. The seams must be cleaned to a perfectly flat surface.
Curves and bends can also be corrected by yourself. To do this, the part is leveled with a hammer, but there is a risk that the bar will burst from the load on it.
If the damage is too obvious and it is rather difficult to fix it, it is best to purchase a new part and replace the broken fragment.
In some cases, a complete replacement of the boom may be required.
When buying, pay attention to such characteristics as the size of the part, the method of its fastening and the shape of the landing part, they must correspond to the used closer model.
To maximize the lifespan of the door closer, care must be taken to maintain the serviceability of this mechanism. For this purpose, the condition of the main parts of the system should be regularly checked.If there is a problem of corrosion, rework the metal fragments regularly and lubricate them for smooth running.
You should also take care of adjusting the settings according to the parameters of the door. This concerns the setting of the movement speed, effort and catch. It is advisable to change these indicators every six months, since the weather conditions and temperature conditions largely affect the closer. This is the only way you can keep it for the maximum period.
VIDEO
A door closer is a device that allows large and heavy doors to close smoothly and quietly. The closer is often installed on the door of premises with very high traffic.
Thanks to the closer, the entrance and interior doors close tightly immediately after the leaf is released, which allows you to save heat or coolness inside the room.
In addition, door closers significantly extend the lifespan of door locking devices. The principle of operation of the mechanism is quite simple. The main working element of the device is a spring. When the door is opened, it is she who, contracting, accumulates energy, which returns the door to its original position. The oil damper allows the door to close smoothly and quietly.
Some closers have more than one shock absorber, but several, but this does not change the principle of operation.
The closer type determines the mechanism that actuates the working spring. So, closers with a gear drive and devices with a sliding rod are distinguished.
To quickly and efficiently repair a door closer, you need to find out how the mechanism works and how it works.
Any door closer consists of a link arm and a retarding mechanism, which is responsible for the smooth closing of the leaf.
The mechanism consists of a piston that compresses a powerful spring in a reservoir filled with oil. After being compressed by means of hydraulic channels, it slowly returns to its original position, providing a smooth closing. Force adjustment is carried out by special screws located on the end of the body. When they are tightened, the diameter of the hydraulic channels decreases, which slows down the flow of oil, and, consequently, the speed of closing the door.
Unfortunately, not all door closer faults can be repaired by hand: in most cases, the most important elements of the mechanism, such as the piston and the spring, fail.
Often, the prices for such parts do not differ much from the cost of the door closer itself. Therefore, the purchase of a new device will be, in this case, more expedient and will save time and effort.
In addition to the above breakdowns, the following malfunctions may occur in the door closer:
Leakage of working fluid (oil).
Unbalance of the closer mountings.
Deformation of the traction levers.
You can easily eliminate such defects yourself, without significant financial costs.
There are several typical breakdowns of a kitchen unit spring door closer. The main problems include deformation or damage to guides, rods.This can be caused by damage to the door or excessive opening of the leaf after the door closer passes the dead center. A broken barbell is relatively easy to repair.
Damage to the door closer can be associated with:
By bending the lever in the opposite direction;
Lever sticking;
Broken fasteners.
If the lever is bent in the opposite direction, then you can fix the problem on your own. To do this, it will be enough to remove the cabinet doors from the hinges, disassemble the closer, and gently bend it in the other direction with your hands. Dismantling and repairing the closer will not take much time. If the lever cannot be restored to its original shape, with such a repair, it will be possible to replace the damaged element with a new one.
The seizure of the closer levers is due to the absence or complete production of lubricant.
The defect can be corrected by using ordinary machine oil. A couple of drops will be enough to lubricate the mechanism, and the doors of your kitchen set will open and close again with ease.
Replacing worn out mountings is easy enough. In order to make a replacement, you need to purchase the appropriate screws, unscrew the old ones and install new fasteners in their place.
Temperature fluctuations can cause breakage of the oil-filled door closer body. Without liquid, the structure will lose its key properties and turn into a conventional spring mechanism. As a result, the opposite effect will be achieved: the door, when closed, will accelerate instead of slowing down, which will cause additional noise.
To prevent the final breakdown of the closer, it must be repaired immediately after the first signs of a leak, otherwise the device will have to be completely replaced.
In order to repair the door closer body, first of all, it is necessary to localize the place of leakage. Leakage can be caused by depressurization of the housing, for example, as a result of its damage. An ordinary sealant will help to fix the problem. However, it should be borne in mind that this method can eliminate a small hole.
If the hole in the housing is large or a large amount of oil has leaked out at the time of repair work, then, before sealing, it is imperative to top up the liquid.
That is, oil filling must be carried out before any work related to sealing. This procedure can ensure that the oil level is correct. In addition, it often happens that initially the required amount of oil is not added at the plant. Therefore, the closer often creaks. You can get rid of the sound by pouring the missing oil into the hydraulic reservoir. What kind of oil can I use?
The closer can be filled with ordinary engine oil or, more readily available shock absorber fluid.
The missing oil should be poured through the holes of the screws to adjust the smoothness of the closing of the web, having previously unscrewed them.
VIDEO
A door closer is an important mechanism that prevents rapid wear of the leaf due to mechanical damage and ensures a high level of noise insulation. Repair of the closer may be necessary in the event of a breakdown of the main working elements of the mechanism, depressurization of the tank with oil, and the production of lubricant. You can cope with these problems on your own, taking into account the above recommendations!
To repair the door closer on your own is a necessary action to extend the life of this device. Perhaps not all breakdowns can be fixed on their own, but most of the problems for a real man are quite capable of eliminating. In order to know how to repair a door closer, you need to understand the cause of the breakdown.Understand the principle of operation of the device, the correctness of its settings, and then it will be possible to carry out repair work.
There are two types of mechanism:
Rack and pinion door closer with hydraulic circuit. During the opening of the door, the gear, fixed on the axis of the lever, turns and directs the translational movement to the piston thanks to the rack, which, in turn, transfers the force to the compression spring. When the doors are closed, external forces are removed and the spring returns to its original position.
The spring creates pressure on the piston, causing the gear to rotate, which in turn cascades force to the door closer lever.
Cam device. Located on the axis of the lever, a cam of a complex eccentric shape on both sides is fixed by rollers. When the door is opened, the protruding part of the cam compresses the spring, which, in its resistance, forms the rotation of the cam in the opposite direction, which ultimately leads to the planned closing of the door.
The main breakdowns of the device can be:
Weather conditions - instant changes in climatic conditions, rain, dampness, high humidity. Such causes of malfunction are most often found in boxes made of plastic.
Uneven opening or closing of the door leaf. When the door is opened with effort or vice versa, it is closed in spite of the slow movement, moreover, that the closer is not adjusted for this mode.
Delaying the door in motion for a short period of time or for a long period.
Locking the door with foreign objects without disabling the closer. Refers to models in the characteristics of which there is no function of holding the doors in the open position for 90 degrees or more.
Such models, when artificially holding the door for a long period, will inevitably require repair of the mechanism.
Severe load on the mechanism, for example, if a door closer is placed on a heavy door leaf that does not meet functional characteristics.
All of the above reasons can lead to repair work of the door closer:
Curvature, corrosion, rod rupture - this part is in the field of view on a constant basis, so you can notice this problem with the naked eye. It is worth periodically visually checking this part of the mechanism. If minimal damage is found, they should be repaired as soon as possible.
Curvatures, bends of the rod can be straightened, but you should be careful - with a strong impact of a hammer, there is a possibility of breakage.
Corrosion must be removed by stripping and opened with a special anti-corrosion coating or simply painted.
The gap can be eliminated with the help of welding, it is important to remember about the seams - they also need to be cleaned and opened with an anti-corrosion coating.
If the damage to the rod is maximum and it is laborious and unprofitable to eliminate it, then it is best to replace the part with a new one.
The current problem is oil leaking. During winter frosts, the main part of the oil mechanism may break down, which is responsible for the smooth running of the door. If oil has flowed out of the main mechanism, then the closer will not lose its main function - closing the doors, but will work like a spring. If possible, this breakdown must be eliminated as soon as possible, because if you ignore it, then in the end you will have to buy a new mechanism. Repair of the closer in this case is carried out using hermetic glue. Of course, a leak is found and eliminated before this.
Rarely, but there are episodes of negligence of employees at the manufacturing plant - they simply forgot to add oil and it is necessary to refuel the mechanism. Filling with synthetic-based engine oil is possible, and for a more economical option, an amortization fluid is also suitable.Oil is filled through the hole of the adjusting screws.
Before adjusting and repairing the door closer with your own hands, you should carefully examine the device itself and the door to which the mechanism will be fixed. The door must be free of visible defects, then the box is inspected, it is important that there are no corners that interfere with the normal operation of the closer. Then everything necessary for installation is prepared.
The most suitable tools are: wrenches and hex keys, screwdriver, pliers.
The purpose of a correct adjustment is to qualitatively change the closing speed of the door. To do this, it is necessary to adjust the correct compression of the spring in the mechanism. Adjustment is made with the appropriate valve and nut. An important aspect is the readjustment of the door closer stroke during the change of seasons, this is due to the fluid in the mechanism and its reaction to the change in temperature.
An example of setting in the video below
VIDEO
In order to avoid the above breakdowns, for a durable and high-quality operation of the mechanism, regardless of what rooms it is installed in: public office buildings, residential buildings, industrial enterprises, it is necessary to carry out preventive measures.
You should also make a visual inspection of the door closer on an ongoing basis, watch out for metal fragments, lubricate the mechanism in a timely manner, and qualitatively adjust the door adjustment according to the parameters. In the shortest possible time, replace the parts requiring repair. Regularly maintain the door closer, react to changing climatic conditions - all this will help to extend its service life and reliable operation for many years.
How to repair a door closer yourself - the main malfunctions, how to fix them and the procedure for adjusting
This simple device greatly simplifies life, as it relieves not only the need to close the door behind you, but also from drafts, providing a tight hold of the canvas. But even the most reliable mechanism has a certain resource, and sooner or later, the door closer will have to be repaired. As a rule, most of the probable malfunctions are completely removable without the involvement of a specialist.
It is pointless to start repairs without understanding why the breakdown occurred or the mechanism began to work incorrectly. Regardless of the design of the closer, you need to start with this. What can cause a defect to appear?
Increased load on the canvas. Here, as a rule, there are two options - either the device is incorrectly selected for a specific door, or the order of its use is violated. For example, kids often hang on it in the hope of a ride. Or adults are trying to "help" the sash to close as soon as possible. In any case, do-it-yourself door closer repairs will have to be done often, and this fact should alert you.
Weather conditions that do not correspond to the operating mode of the mechanism. One of the consequences of temperature changes is cracks in the device case. And this leads to the fact that oil begins to flow out of it. Such a defect can be easily identified visually.
Regular blocking of the sash. In private houses and apartments, the situation is quite rare. However, there are lovers in this way to organize the ventilation of the premises. And in this case, systematic repairs are inevitable.
Deformation of door elements - skewing of the block, sagging of the sash. This is difficult not to notice, and therefore you will have to deal with adjustments if the defect cannot be eliminated. But the tightness of the abutment of the canvas to the frame is not guaranteed.
Only after analyzing the situation can you decide whether it is advisable to repair the closer or if it should be changed.
All devices of this type are subdivided into groups, depending on the design features.Before starting the repair, it is necessary at least in general terms to understand the structure of the closing mechanism. But the principle of the door closer, regardless of the model, is the same. And therefore the breakdowns in them are almost identical.
The device of the door closing device is such that an insufficient amount of oil leads to an abrupt actuation of the spring. Sometimes it is easy to determine by the characteristic sound when the sash slams shut. What should be done? Carefully inspect the area where the smudges are found. To do this, it is necessary to clean the body from oil stains.
First of all, its integrity is determined. If a crack appears, its size is estimated. A small one is easy to seal with a sealant. Even ordinary plasticine will do. But if the gap is significant, there can be no question of repairing the door closer - just a replacement.
The liquid is topped up. As such, engine oil is usually used. In order to fill the closer body with it, it is necessary to unscrew one of the adjusting screws located on the end of the device. Naturally, it will have to be removed from the installation site.
How to repair the closer in this case is decided by the results of the analysis of the malfunction. The most common defects are:
rusting of metal. As a rule, it is observed in structures installed at the entrance to a building or in rooms with excessive humidity. Moreover, this is mainly typical for cheap models made of ordinary steel. It is necessary to dismantle the lever assembly, disassemble, carefully clean and lubricate each element. The composition is selected based on local climatic conditions. After all, the kitchen is one thing, and the street is completely different;
break of the bar. How to fix in this case? An easier option is to search in stores. In specialized outlets, such goods can be purchased at retail. You just need to take the broken part with you to determine the identity of the samples. If there is a welding machine in the house, it is not difficult to eliminate the defect. But only if the bar is made of steel, and not made of silumin;
curvature of the lever. No comments are required here. If this is a cabinet door closer, then there will be no problems. The bar in such models is thin and easy to "straighten". It is more difficult with a street appliance, and if the element of the assembly is not made of steel, it is better not to try to repair it; with excessive mechanical stress, it will simply burst;
loosening of the fastening. The simplest malfunction that can be eliminated in a few minutes.
It is recommended to do this at least once every six months, and regardless of whether the closer needs repair or not. Most models have 2 “adjusting” screws, some have 3 or even 4. The need for such frequent adjustments is explained by the property of the oil poured into the body of the device. When the temperature outside changes, its consistency also changes; hence the incorrect operation of the mechanism.
What do the adjusting screws provide? The first is the smoothness of the movement in the section of closing the web from 90 to 150, the second - on the last segment of the path. He is simultaneously "responsible" for the closing of the door leaf, thereby achieving its tight fit to the block. The purpose of the third (additional) one is to provide braking in the section 85 - 900. This protects the hinges from deformation during careless opening of the door.
The layout of the adjustment elements and the procedure for their adjustment are indicated in the documentation for the closer. If it is absent, the information is easy to find on the web. But in relation to this particular model of the device. There are a lot of them, with different capabilities, and therefore each setting has its own specifics.
VIDEO
It turns out that there is nothing difficult in repairing a door closer. But you can do it much less often if you make a systematic inspection of the device, prevention and adjustment.Moreover, this applies to any mechanism, regardless of the place of its installation - even on the front door, even on the sash of the kitchen set. The device of the closer each group has some differences, but they all equally require regular cleaning and lubrication of the same lever system. It is she who is most susceptible to changes in humidity and temperature.
A door closer is a special mechanism designed to automatically close operational, fire-prevention, entrance and structures equipped with an access control system. Often its parts and connections wear out, fail. At the same time, the doors do not close, and they can also move too slowly or, conversely, quickly, with a knock or bang. When the breakdowns are small, specialists adjust the parameters of the device; in case of complex defects, they repair the door closer.
Depending on the type, type of model of the door mechanism, its defect and breakdowns, repairs are carried out either independently, but at the same time they find out the cause of the malfunction, or call the master who installed the mechanism.
Correct, efficient, trouble-free operation, which is a guarantee of the comfort and safety of people, is a property that shows what a closer should be. Competent initial installation, adjustment of device parameters, compliance with all operational requirements affect the quality of its work.
VIDEO
Door device malfunctions can be as follows:
damage or breakage of the bar;
the appearance of cracks in the elements of the mechanism;
bend, break of the lever;
sticking linkage;
wear of oil seals;
breakage of fasteners.
The following factors lead to these defects:
improper operation of the mechanism;
external influences on the door block (blows, strong wind);
placing a stone or foreign object to fix the door in the open position.
Damage is repaired by doing the door closer repair with your own hands. If the defect cannot be eliminated, then the mechanism is bought.
This device consists of the following mechanisms and parts:
spring;
die-cast aluminum body;
precision piston;
control valves;
toothed gears;
needle bearing;
rubber seals;
fasteners.
The closer operation mechanism is arranged as follows.
The main structural element is the spring mechanism, which, when compressed, stores the energy necessary to close the doors. The compression process takes place by transferring the force of the link rod to the spring. The toothed gears and racks drive the piston, while the oil flows through the internal ducts into the free part of the housing. Adjusting the fluid flow rate affects the closing rate.
If oil does not enter the released housing of the device, it leaks due to depressurization, then the door mechanism does not work. The problem can be solved by repairing.
Oil leakage occurs due to large fluctuations in ambient temperature. Leaks often appear during the cold season. The density of the oil liquid directly depends on temperature changes.
The second reason for the appearance of oil leakage is the depressurization of the box, which occurs when it is damaged. If the defect is not severe, it must be repaired with a simple sealant. If the crack is large or the oil has leaked out in full, the methods of elimination with a sealant will not give a positive result, so the closer is changed.
In cases of poor liquid filling at the factory, it is added to the door device. In this case, choose a synthetic engine oil or shock absorber fluid. The oil is filled through the control valves.
In case of malfunctions in the operation of the mechanism, pay special attention to the bar, check its condition and the presence of damage. At the slightest malfunction, repair is carried out.
You can fix the problem yourself. Before you repair a damaged bar, you should read the instructions for repair and installation of the closer and act according to it.
High-quality repair of the door closer is possible only if the reasons for the formation of defects and damage are correctly identified.
The reasons for breakdowns can be as follows:
adverse, cold weather conditions;
abrupt opening and closing of doors;
blocking the movement of the door leaf;
overload of the closer.
Manufacturers are not interested in affordable door repairs. Most of them have an all-alloy body. For such models, it is difficult to carry out repair work. Damage such as worn oil seals or oil leaks cannot be repaired. Therefore, the closer must be dismantled and replaced.
Correct adjustment of the door device immediately after its installation is of paramount importance in the reliable and efficient operation of the mechanism.
Do-it-yourself door closer repair is easy to do.
In the event of defects in the bar, perform the following actions:
In the presence of rust, anti-corrosion cleaning is done and treated with a special protective lubricant.
When a small crack or break occurs, the welding method is used, after which the welded seams are ground to an even state without slag inclusions, sagging, formations.
Curves or kinks are carefully leveled with a hammer so that the force does not break the lever.
If the door speed is violated, the device is adjusted.
To repair breakdowns in the closer device, the following tools are required:
If complex defects are identified, a hammer and a welding machine are required to correct them.
VIDEO
The procedure for carrying out repair work is as follows:
Inspect the door closer body carefully. The oil-filled housing must be free of leakage.
Check the tightness of the fastening screws. If the part is tight or loose, tighten it to the required level.
Inspect the door block, the place of attachment and contact with the box for cracks, dents that lead to a distortion of the structure.
Check the operation of the closer levers.
Adjust the speed of closing and opening doors, latching, maximum swing angle.
Repair the part if damaged.
After the procedure, install the closer in place.
If the defect cannot be corrected on your own, this situation is solved by replacing the closer.
Adjustment is a mandatory measure not only during the operation of the mechanism, but also for prevention. The procedure is performed at least 2 times a year, with seasonal temperature fluctuations, this is done more often.
The adjustment of the device consists in adjusting the speed of closing the door block using the adjusting screws, pressing it against the box, and smoothly decelerating when the doors are fully closed.
Repair of door closers is a simple technological process, the implementation of which is most often possible even for a novice master.
Video (click to play).
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