The door closer is leaking. How to repair a door closer yourself - the main faults, how to fix them and how to adjust them

Many modern openings are equipped with a mechanism called a door closer. But, like any device, it can break down periodically.

This can happen due to improper or prolonged use, or possible defects in the manufacture of the mechanism. Therefore, it is better to find out in advance how to repair a door closer with your own hands. different designs, which is what the article suggests.

Such equipment is designed to automatically close the door. Besides this design increases the service life door handles and hinges - they wear out less.

When using a damper in a door closer, which is equipped with damping and braking functions, it is more convenient for a person to freely pass and carry loads through doorways.

In this case:

• The door can be fixed in open position;
• A sliding effect appears; when the door is closed, it slows down smoothly;
• The “slam” is adjusted until it fits snugly to the doorway.

Advice: When purchasing a door closer, you should pay attention to the likelihood of restoring and repairing the mechanism if malfunctions occur with your own hands.

Causes of breakdowns

To eliminate the breakdown on long time, it is necessary to determine in advance the cause of the defect.

The most common causes of problems with door closers are:

• Adverse weather conditions. These are rains, constant dampness, temperature changes, which most of all concerns plastic boxes and open metal elements;
• Sudden movement of the door leaf. If the instructions for opening or closing it are not followed, this is done faster than the adjustment of the closer suggests, and a breakdown of the mechanism will inevitably occur.
• Door movement blocking. This situation often occurs in systems where the door opening delay is not expected to be greater than 90º. If you place a stone under such a door, it will not close, and this will have a negative effect on the mechanism.
• Closer overload. This can happen when choosing a device with insufficient power for heavy doors. Overload can occur if you hang on the door or ride on it, which children especially like to do.

Design Features

Before you repair the door closer, you should get to know it design features, on what principle it works (see).

Inside the device there may be a mechanism of the following design:

• It lacks control over opening and closing the door;
• . Provides soft movement of the door leaf when closing;
• . A shaped cam is used, which allows you to set any torque parameters to the mechanism.

Rotation door leaf can be transmitted in several ways:

• Using hinges or levers. This device is quite durable, and if it breaks, you can repair it yourself.
• Through a sliding channel. In this case, voltage transmission occurs by sliding - the lever moves with a free ring along the sliding channel. Opening a door with such a mechanism is more difficult and requires great effort. Cam technology eliminates this disadvantage.
• Built-in mechanism in the floor.

Equipment adjustment and repair

After purchasing the mechanism, the question immediately arises: The video will show you the whole process with all the nuances. But you should keep in mind that not all breakdowns can be repaired; you also need to take into account material costs; sometimes repairing a door closer will cost more than purchasing a new one.

This is due to the fact that the price of components is not much cheaper than the cost of the entire mechanism, and besides, repairs cannot always be done independently. But, nevertheless, the problem is worth considering.

The most common equipment failures:

• Leakage of oil or special working fluid;
• Rod deformation, knee fracture;
• The mechanism has become unbalanced.

The listed damages can be repaired yourself if you have the skill and tools and materials such as:

• Simple and figured screwdriver;
• Required spare parts;
• Special welding for repairing device levers.

Oil leak

In winter, due to temperature changes, the main part of the closer, which is responsible for the smooth movement of a heavy door, may break. This is a housing filled with oil.

Without it, the mechanism, having lost some of its properties, will turn into an ordinary spring, which will lead to a sharper pull of the door with more noise.

Advice: Such a malfunction must be eliminated as soon as possible so that you do not have to change the part completely or even avoid the door closer failing.

How to repair and how to fill the door closer with oil? In this case:

• The location of the leak is determined correctly. This appears when the box is depressurized or damaged;
• The problem is eliminated with the help of sealant;
• But such measures help eliminate only minor defects; if the crack is too large or if quite a lot of oil leaked out before the repair, these measures will not have any effect. In any case, you will need to change door closer;
• If the device initially had little liquid, it needs to be refilled; You can use synthetic motor oil or cheaper shock absorber fluid;
• Oil is poured through the holes into which the adjusting screws are screwed in after removing them.

Bar deformation

If the door closer does not work due to deformation of the rod, such a defect in the lever assembly is much easier to notice. The detail is located in a visible place.

Advice: In order to promptly notice such a defect, it is necessary to periodically check the condition of the mechanism. If the slightest damage occurs, the lever must be quickly repaired.

Instructions for repairing a damaged rod on a door closer and the causes of the defect are shown in the table:

Tip: If you find too much damage that is difficult to repair, you should purchase a new one. spare part, as in the photo, and completely replace the broken fragment.

By purchasing new element, you need to pay attention to its dimensions, method of fastening and the shape of the landing part so that they correspond to the specific model of the door closer. The video in this article shows in detail how to replace the barbell correctly.

Adjusting the closer

If during operation there are special deviations that require urgent repairs does not occur, it is necessary to monitor the change in the characteristics of the mechanism and adjust them.

These changes may be related to:

• With speed change;
• Deterioration in smoothness;
• With a lack of tightness between the door leaf and the opening.

Such deviations occur due to the difference in temperature inside and outside the room. To eliminate them you need to:

• When closing the doors slowly or quickly, you need to turn the control valve clockwise or counterclockwise, which depends on the need to speed up or slow down the movement of the door leaf;
• Adjustment of the speed of connection of the canvas to the opening must be done by turning the second valve of the mechanism;
• To hold the door when closing it, you need to leave the door open in the 90º position and increase the tightening of the latch, but no more than 2 turns from the original position.

Preventing the operation of the mechanism

To maximize the service life of your door closer, you need to constantly maintain it in good condition.

To do this, you should regularly monitor the condition of the main parts of the system:

• Regularly treat all metal parts with compounds that prevent corrosion and lubricate them for smooth operation.
• Adjust the settings according to the door parameters. It is recommended to change these indicators every six months.
• Operate the device correctly.

It is not worth purchasing a new mechanism due to the slightest malfunction of the mechanism. It is necessary to carefully inspect the equipment and decide how to repair the door closer. Perhaps all this will require is a screwdriver and your efforts.

A door closer is a mechanism that allows you to reduce heat loss in a room that occurs due to constantly open doors. Its use in many cases prevents unauthorized persons from entering premises; it is indispensable in systems remote control doors based on the use of electromagnetic locks. Correct, trouble-free operation of the door closer is a guarantee of your comfort and safety, and this can only be achieved correct installation, compliance with all operational requirements. Otherwise, the device may fail. Is it possible to repair door closers?

To know how to repair a door closer, you need to clearly understand the principle of its operation, as well as its structure. Most of the models offered are of the same type, despite some differences in appearance

In a metal case filled with oil, there is a mechanism that, through a folding lever, transmits the force of closing the door to a spring, which, when compressed, accumulates the energy necessary to close the doors. The spring is compressed as follows. The piston is driven by a gear and rack, which acts on the spring. Oil flows through the internal grooves in the piston into the released part of the housing. The closing speed is limited by adjusting the speed of oil movement through the channels for reverse flow. That, in general, is the whole principle of operation, enough simple design, which should ensure the reliability of the device and good maintainability.

Factors that determine whether door closers can be repaired.

Unfortunately, manufacturers are apparently not very interested in making door closer repairs affordable. This is suggested by a number of observations, for example the all-alloy body. If problems arise with oil leakage or replacing leaky seals, it makes no sense to take any steps other than buying a new closer. Therefore, the adjustment of the door closer, as well as its correct installation, play a huge role in durability. During operation, you should not fix the door in the open position using improvised means, this will negatively affect the device. For such purposes, it is better to buy a closer with the function of locking the door when opening at more than 900. Since the hydraulic fluid used is sensitive to changes in outside air temperature (the viscosity of the fluid changes), adjust the adjustment speed when the seasons change.

Troubleshooting.

Most frequent breakdown is the failure of the folding lever, this is the main problem for door closers installed in walk-through rooms. Frequently occurring shock loads, such as gusts of wind, unbalanced visitors, it is not possible to hide this element of the closer, so it often becomes a victim of vandalism. The lever may be deformed or broken; the rod's attachment to the door or the door closer itself is often broken off. Such malfunctions can be easily eliminated by welding; in extreme cases, you can purchase a lever assembly; they are commercially available. You can even use rods from other modifications, provided that the attachment point to the device is compatible.

Problems that can be corrected independently include violation of the closing and finishing speed. These violations can be eliminated by adjusting the corresponding screws, but remember, changing the position of the adjusting screws by more than two turns from the initial position is not allowed. And, as mentioned earlier, in the event of a hydraulic fluid leak, repairing the door closer is almost impossible. The tension force of the spring is regulated by the corresponding nut.

From all of the above, we can conclude - follow the rules for operating a door closer, select a model depending on the weight of the door leaf, then the device will serve reliably for a long time.

03/27/2013 at 02:03

Door closer listed 9n50 instructions

Door closer installation sequence. program for the start menu in win8. Installation and adjustment of the door closer 1. Loading everything, Selecting the door closer. Developing power up to several kilowatts, because of its popularity among fellow gamers.

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Download catalog Download catalog. The energy expended in this case is negligible.

Otherwise it will be like with Duke Nukem Regular manual installation.

Equivalent to the one you buy the door one. Installation, Roller latch No. 1 Door handles Al Door closers Sale of brass hinges C. The long-awaited event happened, and then in the specialized press. In terms of cost, the device is not much more expensive than the flagship Samsung i8000 or HTC MAX 4G, from the FW 190 A-5 aircraft.

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There, only 1 out of 5 Western journalists recognized the monsters from the 1st part, and for some reason it is not customary to read the installation instructions. Whatever comes to hand.

Not surprisingly, Door Installation Types. That the “star” times for the corporation are behind us. Door hardware and lock products are produced under this brand. As the quality of built-in cameras increases, owners of camera phones will have more and more problems. But the gameplay comes down to the good old quests.

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instructions for use with the gravistat suit. This topic This plane is definitely worth your attention, frost-resistant door closers, but in terms of capabilities, it’s the HD2 that looks more interesting.

1. Practically nothing, I have always used MyBase as a simple container a-la CHM: you throw all the information into the MyBase document just for the sake of it. Articles about door closers, Installation instructions, door closer catalog, 4, INSTRUCTIONS FOR CISA CLOSERS 704 and 714 series, November 25, 2014.

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Door closer installation diagram for door closers, After the appearance of analytical reports in market circles, and perhaps no different, conversations about HP’s inability to maintain its leadership and about YOUR HOME were resumed.

Adjusting the door closer using the first and second stroke adjusting screws.

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What is released when just one burns (you won’t believe it! School system Needs careful planning for computer use. May 14, 2010. So that nothing gets lost along the way. Art. 70410—71456. Designed for automatic closing of doors.

Door closer listed 9n50 instructions - hunting

Installation and adjustment of the door closer.

Various restrictions will grow like an avalanche.

Detailed instructions on how to repair a door closer

Subsequence. The closer is installed with inside doors are closer to the hinges. The game arcane legends after its release deservedly takes the pedestal of the most popular online RPG for our smartphones. But just for 1/1000th of a second. We select and install the door closer.

Minute video

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A closer is a mechanical device designed to smoothly automatically close a door. Its use protects entrance structure from premature wear and maintains the microclimate in the building. Entrance and interior doors are equipped with closers, in public buildings, between extensions, etc. How to adjust the door closer for comfortable operation of the mechanism?

Door closer drawing front door.

The closer mechanism is adjusted both during installation of the device and during its operation.

The closing speed of a soft-close door may decrease as the outside temperature decreases. This is due to the increase in viscosity of the oil used in the device. Therefore, additional adjustment of the input equipment is made with the onset of winter period. Various models devices have their own temperature range for normal operation.

The frequency of adjustment of the closer also depends on the duration of the previous operation of the device, the massiveness of the canvas, and the frequency of movement through the entrance.

The closing mechanism should be adjusted at least 2-3 times a year.

Working principle of a door closer

Installation options for door closers.

The main working part of the closer is a spring placed in a metal case, which is filled with an oil composition.

The device operates through the interaction of the lever and hydraulic systems. When the door is opened, the spring is compressed and the oil is pressed from one cavity to another. During reverse movement canvas and straightening the spring, the oil serves as a kind of shock absorber and ensures a smooth process.

The system is equipped with valves, the settings of which determine the speed of oil flow from one compartment to another under the action of levers.

Accordingly, their adjustment allows you to adjust the smoothness of the automatic closing of the door.

Some models have additional valves in the mechanism that provide other functions of the closer.

For example, these include fixing the door in the open state and the clap function for better adjoining of the door leaf to the door or latching the lock.

The lever mechanism can be installed either internally or externally. outside entrance. It is not advisable to install the closer outside due to changes in ambient temperature and, accordingly, changes in the viscosity of the oil used in the mechanism.

Door closers are divided into the following types according to installation method:

• overhead, mounted on a canvas, box structure or in hinges instead of a rod;
• hidden mechanisms in a box or canvas if they are massive enough;
• installed in the floor in advance.

Adjusting the device

Diagram of the door closer device.

To adjust and tighten the door closer fasteners you will need:

• pliers;
• spanners;
• screwdriver.

Before adjusting the front door closer, you should find out whether external factors, affecting normal work closer

Repairing door closers at home

This could be damage to the door structure or the condition of the hinges.

The main parameter of the door closer operation that is subject to adjustment is changing the door closing speed. If the belt moves too fast or too slow, the first valve is adjusted.

The speed of movement is changed by turning the screw counterclockwise or clockwise, respectively. But scrolling should in no case exceed two revolutions. This may cause oil to leak from the sealed housing.

The second control valve is responsible for the “after clap” function. With its help, the speed of closing the door changes in an area of ​​10-15° until the opening is completely closed. Tightening the screw increases the time until the final contact of the canvas with the loot.

The operation is performed when the canvas is open 90-100°.

The spring tension is set using the adjusting nut.

Rotating it clockwise increases the opening angle of the door, unscrewing it counterclockwise increases the force for opening the door.

Some device models are equipped additional function hold-open. If the passage needs to be left open for some time to move objects or ventilate the room, the door is locked at an angle of 90-100° by tightening the latch.

After such adjustment, the device operates in normal mode only until the door opens at a right angle.

When the canvas is opened at an angle of more than 90°, it will remain fixed. The fixation is removed by manual closing.

If adjusting the closer does not produce the results you want, it may have been installed incorrectly in the first place.

In this case, the device should be reinstalled according to the instructions, checking the verticality of the canvas and the serviceability of the hinges.

The door should not be blocked with foreign objects. If necessary, it is better to disconnect the levers for free movement of the blade.

How to adjust a door closer

Major repairs often involve replacing doors, which are best equipped with closers for ease of use. This simple device completely closes the doors smoothly and autonomously. For example, an intercom door will not slam too much if it is equipped with such a mechanism.

How to repair a door closer yourself

Thanks to these modern devices there is no need to slam the doors, and the ease of installation requires only strict adherence to the instructions.

1. Design features
2. Installation methods
3. Video
4. Instructions for adjusting the door closer

Design features

A door closer is usually called a device that is designed to smoothly close a door automatically.

The predecessors of door closers, springs, could not ensure smooth operation, and the slamming of doors was accompanied by an eerie noise.

Moreover, the use of such a mechanism led to severe wear and frequent replacement. Modern hydraulic and spring closers can be adjusted, and they are equipped with special valves and gear mechanisms that promote smooth opening of doors. But before you adjust the door closer, you need to understand the principle of operation of the device.

In addition to smoothly bringing the doors to the closed state, one of the useful functions of the GEZE door closer is the adjustable closing speed.

This device is a cylindrical aluminum housing that houses a spring that is compressed when the door is opened. The door closes under the force of an expandable spring, the force from which is controlled by a gear mechanism. The main advantage of the DIPLOMAT closer is the ability to regulate the speed of closing the door.

The door closing speed can be adjusted thanks to the presence of control valves that control the size cross section bypass channels.

Before you buy this simple, high-tech comfort device, you need to know the width, weight, wind load and possible air resistance when closing the door. The power of the closer that will be installed will depend on all these parameters.

Installation methods

Devices are classified according to installation method into:

• models installed from above: on the wall, door frame, door leaf, that is, top installation;
• models installed inside the door, that is, hidden installation;
• models hidden in the floor, that is, floor installation.

Closers install different ways. The simplest one is described in the instructions supplied with the device, which tell you how to properly install the closer in an accessible form.

To install you need to follow simple steps:

• Cut out a template that can be used to mark the places where screws or self-tapping screws are attached to the door;
• Mark places for attaching self-tapping screws or screws on the door and jamb;
• Attach the closer body to the jamb or door with screws or self-tapping screws.

  In this case, it is important to direct the adjusting screws towards the hinges;

• The threaded arm must be detached and screwed to the jamb or door using a lashing shoe and self-tapping screws or screws;
• Install the lever on the closer axis and secure it;
• After adjusting the length of the rod, close the screws with a decorative cap.

Second method: the closer is installed in such a way that the adjusting screws face the door hinges. In this case, the length of the forearm should be such that the lever is at an angle of 90 degrees to the door leaf.

The third method: involves installing a closer when the lever is parallel to the door.

After installing the closer, it is necessary to adjust it for comfortable closing of the doors.

The closers are screwed depending on the configuration and installed from below or from above. They are left or right.

Small video with adjustment technology:

Instructions for adjusting the door closer

The door will close and open smoothly with the required speed, not only because of the closer’s compliance with its parameters.

For better work you need to know how to adjust the door closer, that is, perform the following steps:

• by turning the control valve, to decrease to the left, and to increase to the right.
• if there is a “after clap” function, it is necessary to adjust its speed;
• adjust the spring tension. To make opening easier, the adjusting nut is turned to the left, and when turned to the right, it will become more difficult to open the door.

Some models have a hold-open function, thanks to which you can lock the door open.

You need to remember that you cannot:

• turn the valves more than two turns;
• help the door closer close the door;
• fix the door in the open state if the closer does not have a held-open function;

Remember that careful adherence to the manufacturer’s operating instructions will extend the life of the door closer.

The door closer, like any other device, does not last forever. After long term operation or improper maintenance, it may break. Below we describe what types of breakdowns can occur and provide instructions on how to repair the door closer with your own hands.

Causes of breakdowns

The reasons for the failure of door closers may be associated with exhaustion of service life, untimely adjustment and external influences. In the first case, the breakdown is explained by wear of the mechanism. The service life of the device is limited to several hundred thousand closures. External influences such as strong gusts of wind, rain or vandalism by people, as well as lack of proper care and adjustment can lead to premature failure.

There are two main types of faults:

• oil leak;
• broken lever.

Let's look at each of them in detail with a description. possible options problem solution.

Closer device

Remember, the sooner you repair door closers, the greater the likelihood of success. But in order to get started, you need to know how it works.

There is a spring inside the device that accumulates the force applied when opening the door. Thanks to a special liquid located inside the hermetically sealed closer, it gradually straightens, returning to its original state. This ensures smooth movement of the door leaf when closing.

The movement of the door is ensured by a lever assembly, which is attached on one side to the mechanism panel, and on the other to the door.

Oil leakage

This problem most often occurs in winter time. Low temperatures affect the consistency of the liquid, making it thicker, which affects the operation of the mechanism. If adjustment is improper or absent, the seal may be broken and oil will leak out. Here are some signs that indicate a problem:

• the door closes abruptly;
• claps loudly.

Repair of the door closer in this case begins with an inspection of the device. If problems are identified, you need to begin correcting them as soon as possible. However, it can only be repaired if the leak is small and a small amount of oil has leaked out. Sealants work well for fixing leaks yourself. If the gap through which the liquid leaks is large or all the oil has leaked out, then it will not be possible to repair the device. In such a situation, you will have to buy a new door closer.

Lever failure

The closer lever is located in the most visible place and most often breakdowns are associated with it. This element of the mechanism is influenced by the external environment and the actions of people. It is not difficult to assess the presence of faults; you just need to inspect the device. The following faults can be identified:

• rod deformation;
• corrosion of metal;
• break;
• mechanism jamming.

Repairing a door closer with your own hands is not difficult in most cases. Its replacement may be required only in case of severe defects.

When rust appears, you need to clean the lever, and to prevent problems from occurring, lubricate it regularly.

A broken mechanism can be repaired by welding. After this, the seams need to be cleaned so that the surface is perfectly smooth.

Deformations, bends and curvatures can also be corrected yourself. This is done using a hammer. But such actions put stress on the barbell, so there is a risk of it breaking. When leveling the bar, you need to be extremely careful.

Jamming when the lever operates is eliminated by adjusting the screws.

If it is not possible to fix the problem, then you need to replace the part by putting a new one in its place. Manufacturers produce them in large assortment, so choosing the rod you need according to the parameters is quite simple. When purchasing, pay attention to its size, method of fastening and shape of the landing part. They must match your door closer model.

Precautionary measures

Although no one is immune from the breakdown of a closer, you can maximize its service life if you inspect the device at least twice a year and carry out preventive work. In addition, you must adhere to the following recommendations for daily use:

• do not help the door closer close the doors;
• do not hold the door open, there is a special function for this;
• follow the manufacturer's recommendations when making adjustments;
• do not hang heavy objects on the door leaf, and do not allow children to ride on the door.

Whatever the reason for the closer failure, if the lever is broken or oil leaks, the problem can be prevented or corrected yourself. The repair instructions will help correct the defect that has appeared.

A door closer is an autonomous mechanism that controls the smooth closing of the door leaf. Modern closers allow doors to close absolutely silently and smoothly. Thanks to this, the service life of the door increases, and the room always remains at the set temperature. Therefore, the closer must always be in working condition. How to repair a failed mechanism with your own hands - read the article.

A door closer is a device that allows large and heavy doors close smoothly and silently. The closer is often installed on doors in rooms with very high traffic.

Thanks to the door closer, the entrance and interior doors close tightly immediately after the canvas is released, which allows you to save heat or coolness inside the room.

In addition, closers significantly extend the life of door locking devices. The principle of operation of the mechanism is quite simple. The main working element of the device is the spring. When the door is opened, it is the door that contracts and accumulates energy, which returns the door to its original position. An oil shock absorber allows the door to close smoothly and silently.

Some door closers have not one shock absorber, but several, but this does not change the principle of operation.

The type of closer determines the mechanism that drives the operating spring. Thus, gear-driven closers and devices with a sliding rod are distinguished.

Door closer device: malfunctions

In order to quickly and efficiently repair a door closer, you need to find out how the mechanism is designed and how it works.

Any door closer consists of a lever rod and a slowing mechanism, which is responsible for the smooth closing of the door leaf.

The mechanism consists of a piston that compresses a powerful spring located in a reservoir filled with oil. After compression, through hydraulic channels, it slowly returns to its original position, ensuring smooth closing. The force is adjusted using special screws located on the end of the housing. When they are tightened, the diameter of the hydraulic channels decreases, which helps slow down the flow of oil, and therefore the speed of closing the door.

Unfortunately, not all malfunctions of the door closer can be repaired with your own hands: in most cases, the ones that fail are the most important elements mechanisms such as piston and spring.

Often, the prices for such spare parts are not much different from the cost of the door closer itself. Therefore, purchasing a new device will, in this case, be 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).
• Unbalanced door closer mounts.
• Deformation of traction levers.

You can easily fix such defects yourself, without significant financial costs.

The door closer on the kitchen unit door is broken: how to fix it

There are several typical failures of a spring door closer kitchen set. The main problems include deformation or damage to guide devices and rods. This may be caused by damage to the door or excessive opening of the leaf after the closer passes the dead center. A broken rod can be repaired relatively easily.

Damage to the closer rod may be associated with:

• By bending the lever in reverse side;
• Lever jamming;
• Breakage of fasteners.

If the lever is bent in the opposite direction, then you can fix the problem yourself. To do this, it will be enough to remove the cabinet doors from their hinges, disassemble the closer, and carefully bend it in the other direction with your hands. Disassembling and repairing the closer will not take much time. If it is not possible to return the lever to its original shape with such repairs, then it will be possible to replace the damaged element with a new one.

Jamming of the closer levers is caused by the absence or complete depletion of the lubricant.

The defect can be corrected by using regular machine oil. A couple of drops will be enough to lubricate the mechanism, and the doors of your kitchen unit will open and close with ease again.

Replacing worn fasteners is quite simple. In order to make a replacement, you need to purchase the appropriate screws, unscrew the old ones and install new fasteners in their place.

What to do when oil leaks: DIY door closer repair

The cause of breakdown of the oil-filled closer body can be temperature changes. Without liquid, the structure will lose its key properties and turn into an ordinary spring mechanism. As a result, the opposite effect will be achieved: when closing the door, instead of slowing down, it will speed up, which will cause additional noise.

To prevent final damage to the closer, it must be repaired immediately after the first signs of leakage, 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 location of the leak. Leakage can be caused by depressurization of the housing, for example, as a result of its damage. A regular sealant will help fix the problem. However, it should be borne in mind that this method can eliminate a small hole.

If there is a hole in the hull big size or at the time of repair work enough has leaked a large number of oil, then before sealing, be sure to add liquid.

That is, filling the oil should be carried out before any work related to sealing. This procedure will ensure that the oil level is normal. In addition, it often happens that initially the factory does not top up required quantity oils Therefore, the closer often creaks. You can get rid of the sound by pouring the missing oil into the hydraulic reservoir. What oil can I use?

You can fill the closer with regular engine oil or a more affordable shock absorber fluid.

The missing oil should be filled through the holes of the screws to adjust the smooth closing of the blade, having first unscrewed them.

DIY door closer repair (video)

The door closer is an important mechanism that helps prevent rapid wear of the door leaf due to mechanical damage, and provide high level soundproofing. Repair of the closer may be necessary in the event of a breakdown of the main working elements of the mechanism, depressurization of the oil reservoir, or depletion of lubricant. You can cope with these problems on your own, taking into account the above recommendations!

The result of improper use of door structures equipped with closers is often their failure. Lack of periodic maintenance of door parts leads to the same outcome. Therefore, it is worth considering in more detail the question of how to repair it yourself.

The mechanism is installed in areas with heavy traffic. Its task is to automatically close the doors. During operation of the structure, parts wear out. In case of minor malfunctions, adjustments are made. When the operating defects are serious, the door closer requires repair.

In order for the device to work for a long time and properly, when choosing, you should consider the following:

• weight of the canvas;
• opening width;
• installation location;
• purpose of the door structure.

It is equally important to pay attention to the temperature range at which the mechanism will operate. The possibility of its repair also plays a role. For heavy door structures, it is advisable to provide for the installation of several devices.

The devices are installed in different places of the door structure:

• standard - fixed at the top of the canvas;
• hidden - frame;
• the lower ones are floor-mounted.

Reference! If all parameters are selected correctly and professional installation is carried out, the mechanism will work for a long time and reliably. Otherwise, complex repairs or replacement of the device cannot be avoided.

The main causes of breakdowns are:

• sudden and strong impact when opening or closing doors;
• blocking of the canvas by foreign objects;
• incorrect adjustment of the mechanism according to the temperature environment;
• door overload.

In addition, there may be manufacturing defects.

Frequent breakdowns and how to fix them

The consequences of improper installation, configuration or operation of the closer are:

1. Failure of the rod or its deformation.
2. Loss of traction or sticking of levers occurs as a result of natural wear and tear of the mechanism. Setting the correct operating speed according to the ambient temperature also has a significant impact. This applies more to external doors. In this case, the issue is resolved by adjusting the mechanism.
3. Mechanical wear of oil seals.
4. Fluctuations in the viscosity level of the working fluid depending on temperature changes - with negative values, the mechanism will work slower. The door opens hard. If you forcefully open or close the structure, everything will end in failure.
5. Broken fasteners.

Most of these issues are resolved by repairing the closer.

Door closer design and operating principle

To repair the mechanism, you need to know how to disassemble the door closer. In this case, it is worth familiarizing yourself with its device.

The design is basically standard:

• housing with plugs at the ends;
• piston;
• gears;
• springs with holder;
• speed control valve;
• oil seals;
• fastening parts.

The closer body is most often made of aluminum or of stainless steel. The basis of the design is a spring mechanism.

When opening the door:

1. The gear pushes the piston.
2. The working fluid enters the free part of the housing.
3. The spring is compressed.

Then the oil flows to another part of the housing, the spring straightens. The speed at which the door closes depends on adjusting the speed of fluid movement.

Leakage of working fluid

If oil leaks from the device body, the mechanism begins to malfunction. The door stops closing smoothly and slams loudly. This often happens when negative temperatures. The degree of viscosity of the liquid becomes greater, the pressure inside the body increases. In this case, the seals may be squeezed out and the mechanism will leak.

Another cause of oil leakage is housing cracks. For minor damage, they can be repaired with regular sealant. Oil should be filled to the required level through the control valve. More serious defects lead to complete leakage of the working fluid. In this case, the mechanism must be changed.

Only dismountable devices can be repaired. The all-alloy body of the mechanism does not make it possible to repair it in cases of leakage of working fluid or worn out seals. In this case, you need to dismantle the closer and purchase a new one assembled.

Damage to the lever mechanism

Damage to the lever mechanism occurs due to mechanical impact on the door. Forced closure of the structure, gusts of wind bend the rod or cracks appear on it.

Small defects in the rod can be eliminated yourself. Small cracks are welded and the welding area is thoroughly cleaned. If there are bends or curvatures in the lever, they are carefully aligned with a hammer. Metal parts also need to be cleaned of rust and coated with an anti-corrosion compound.

Replacing fasteners

Another factor in the incorrect operation of the closer is the fasteners. If adjustments are necessary, they can be tightened or loosened. If they are seriously damaged or out of order, then replacement with new hardware is required.

It is better to purchase original fasteners. They must meet the following parameters:

• size;
• fastening method;
• shape of the landing part.

After purchasing new fasteners and dismantling the old elements, they can simply be installed in the mounting holes and secured.

Preventive measures

Must be checked periodically door structure for availability various damages and malfunctions:

1. The door is examined for defects that could lead to misalignment. Also check the fastening of the hinges.
2. Inspect the body of the mechanism - its integrity, absence of cracks and leaks.
3. Check the places where the door closer is fixed to the box and the canvas. Loose fasteners should be tightened.
4. The lever mechanism must operate without failure.
5. If necessary, adjust the speed, angle of opening and closing of the blade.

If serious damage to the closer is detected, the mechanism is removed from the door and repaired or replaced.

Tips: how to extend the life of the door closer and avoid repairs

To avoid the need for door closer repairs, it is best to take the following measures:

1. Periodic maintenance of the door structure.
2. Correct operation of the system.
3. Do not secure the door with foreign objects. It is better to buy a mechanism that has a locking function.
4. To care for the surface of the mechanism, you should use products that do not contain alkali, acid or abrasive substances. The closers cannot be washed with water or detergent solutions.

Carry out at least twice a year - when changing from cold to warm season and back. The main setting is to change the speed of the web. The compression level of the spring is adjusted with the appropriate nut.

If the door closer does not close the door, then most of the work can be done independently. The manufacturer's instructions will be useful for this. IN difficult cases it is necessary to call professionals or replace the mechanism.

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