Today, do-it-yourself door closer repaireveryone can do it, the main thing is to study some details. The main function of the door closer is to automatically slam the door, this allows a person not to close it, since it will close itself. In order for the device to work properly for a long time, it is necessary to set it up correctly.
Adjusting the door closer.
Basic moments
If there is a constant problem of opendoors, it can be easily solved by installing a door closer. After installing such a device, it will close automatically, without any effort. Such devices are often installed in stores, offices and other commercial establishments. But there are cases of domestic use. Especially if a heavy metal entrance door is installed.
Door closer design.Thanks to such devices, it will close smoothly and quietly. There are models that can fix it in the open position, this function is called hold. In this case, there will be no need to prop the door. The delay action mechanism is used if the door needs to be opened for a certain time, after which it will close again in the usual mode. Such devices are used in utility or auxiliary rooms. This is especially convenient when you need to bring in a load, after a while the door will close itself again and you will not need to make any effort. Each of the types of mechanisms can be installed on any door - interior or entrance. When choosing a device, it is very important to consider the width of the door leaf and its weight. Adjusting the door closer requires special attention, since the quality of the closing will depend on this. The principle of operation of the mechanism is that a person applies a certain effort when opening the door, which is accumulated by the built-in mechanism, after which the mechanism returns to its previous position, thereby closing the door. Based on the design, such devices can be divided into two main groups:
- lever - the design is equipped with a crank drive;
- Leverless - have a cam drive.
Types of door closer installation.The first design option involves the presence of a spring and a hydraulic system filled with oil. The hydraulic system provides cushioning. When oil leaks are detected on the mechanism, the closer must be adjusted, since this is the first sign of a malfunction of the entire system. The valves that are located in the system regulate the speed of fluid flow from one compartment to another and thus set the speed of door closing. Correct operation and adjustment of the door closer is the key to its normal operation and long service life. The main rule that applies to all types is that the door must close itself. You cannot pull it or hold it, trying to help it close faster or slower. If such a mechanism is installed, it should not be constantly in the open position if the device does not have the necessary function. If there are children in the room, they should not be allowed to ride on the door. Avoiding such moments can significantly extend the service life of the closer without repair work. Return to the table of contents</a>
The main types of repair
One of the common door closer failures is the leakage of oil composition.
Sectional view of the door closer.Despite the high tightness of the container in which the spring and oil composition are located, leaks are still possible. Most often, such a breakdown occurs in winter. If the oil composition leaks, the operation of the mechanism will deteriorate, as a result, the door will close abruptly and noisily. When the first signs of a leak appear, it is worth inspecting the device and sealing the damage. It is almost impossible to completely eliminate the breakdown, but if the work is done correctly, you can extend the service life of the closer. If the place of oil leakage is significant, then it will not be possible to repair it, you will have to buy a new device. The second breakdown that can occur in the mechanism is a malfunction of the lever assembly. This element of the design is in an open place, so it will not be difficult to assess the breakdown. If the door is closed with force or heavy objects are hung on it, you can provoke bends and distortions of the mechanism. If the rod is slightly damaged, you can fix the situation with a regular welding machine. In the event that the fastening connection is broken, you will need to buy a new original element. You need to buy only the original one, because only it will be suitable in shape, size and method of fastening. Return to the table of contents</a>
Adjustment of the door closer independently
The adjustment of the closer can be done independently. In order to perform such repairs, it is worth preparing the tools that will be needed in the process.
- Hex keys;
- spanners;
- screwdrivers;
- pliers.
An adjustable mechanism is necessary to start withinspect externally. It is also necessary to inspect the entire door structure, namely, pay attention to distortions. Such a phenomenon can interfere with the normal functioning of the door closer. Repair of serious damage to the device is impossible, since such a mechanism does not involve disassembling into individual parts and subsequent assembly. This is due to the fact that after a violation of the seal, it is impossible to restore it. But, despite this, the closer can be adjusted if the malfunction of the mechanism is minor and can be eliminated by adjustment. Doors of offices, shops and other public institutions are constantly exposed to a high level of exploitation, this can lead to the fact that the closer system will be broken. In order for the system to work properly, it is necessary to conduct regular inspection and adjust it. Several times a year is enough, especially in the off-season periods. The main purpose of the adjustment is to change the speed of the closing movement. To do this, it is worth adjusting the level of compression of the spring using a suitable tool. The first valve and the corresponding nut are responsible for this. The speed is adjusted by turning the nut clockwise and counterclockwise. There can be no more than two such rotations, the limit is set by the manufacturer. The second valve on the mechanism is responsible for the slam when the door leaf is in a position of 10-15° from the door frame. It is very important to regulate the operation of the mechanism with the arrival of winter and summer, this is due to the oil content of the mechanism. In cold weather, it becomes more viscous and the door closes more slowly, in summer the situation is different.
