Do-it-yourself door closer repair: we follow the rules

Many modern openings are equipped with such a mechanism as a closer. But, like any device, it can periodically break.

This may occur due to improper or prolonged use, possible rejects in the manufacture of the mechanism. Therefore, it is better to know in advance how to repair the door closer with your own hands of different designs, which the article suggests.

Benefits of using

Such equipment is designed to automatically close the door. In addition, this design increases the period of operation of door handles and hinges - they wear out less.

When used in the closer damper, which is endowed with the functions of damping and braking, it is more convenient for a person to freely pass and carry cargo through the doorways.

In this case:

• The door can be locked in the open position;
• A sliding effect appears, and when the door is closed, it smoothly decelerates;
• “Dokhlop” of the door leaf is adjusted until it fits snugly to the doorway.

Tip: When purchasing a closer, you should pay attention to the probability of repairing and repairing the mechanism in case of malfunctions with your own hands.

Causes of breakdowns

To eliminate the damage for a long time, it is necessary to determine in advance the cause of the defect.

The causes of problems in door closers are most often:

• Adverse weather conditions. These are rains, constant dampness, temperature drops, which most of all concerns plastic boxes and metal open elements;
• Sharp movement of the door leaf. If the instruction for its opening or closing is not complied with, this is done faster than the setting of the door closer assumes, a mechanism will inevitably break down.
• Door motion lock. Such a situation often arises in those systems where there is no intention to delay the opening of the web more than 90 ?. If you put a stone under such a door, it will not close, and this will have a negative effect on the mechanism.
• Overload closers. This may occur when choosing a device of insufficient power for heavy doors. Overloading can occur if you hang on the door or ride on it, which children especially like to do.

Design features

Before repairing the door closer, you should get acquainted with its design features, on what basis it works (see Door closer: design options and requirements for them).

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

• Spring. It lacks control over the opening and closing of the door;
• Gear wheel. Provides soft movement of the door leaf when closing;
• Eccentric. A figure cam is used, allowing the mechanism to set any torque parameters.

Rotation of the door leaf can be transmitted in several ways:

• Using hinges or levers. Such a device is quite durable, and in case of damage it can be repaired by yourself.
• Through the sliding channel. In this case, the voltage transfer occurs by sliding - the lever moves with a free ring along the sliding channel. It is more difficult to open the door with such a mechanism, it takes great effort. Cam technology eliminates this disadvantage.
• Built-in mechanism in the floor.

Adjustment and repair of equipment

After acquiring the mechanism, the question immediately arises, how to set up a door closer? Video the whole process will tell with all the nuances. But it should be borne in mind that you can not fix all the damage, you need to take into account the material costs, sometimes repair door closer will cost more than buying a new one.

This is due to the fact that the price of components is not much cheaper than the cost of the whole mechanism, and, moreover, not always repairs can be made independently. But, nevertheless, the problem is worth considering.

The most common equipment failures:

• Oil leak или специальной рабочей жидкости;
• Deformation of the knee;
• There was an imbalance of the mechanism.

The listed damage can be repaired by yourself, having the skill and such tools and materials as:

• Simple and curly screwdriver;
• Necessary spare parts;
• Special welding to repair the levers of the device.

Oil leak

In winter, due to temperature fluctuations, the main part of the door closer, which is responsible for the smooth movement of a heavy door, may break. This is a body 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 pulling of the door with more noise.

Tip: It is necessary to eliminate such a malfunction as early as possible so that you do not have to change the part completely or even avoid the door closer.

How to fix, and how to pour oil into the door closer? In this case:

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

Deformation of the rod

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

Tip: In order to timely notice such a defect, it is necessary to periodically check the status of the mechanism. If you experience the slightest damage, you need to quickly repair the lever.

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

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

When purchasing a new element, you need to pay attention to its size, method of attachment and the shape of the mounting part, so that they correspond to a specific model of the door closer. How to replace the barbell in detail shows the video in this article.

Door closer adjustment

If the operation of special deviations that require urgent repair does not occur, it is necessary to control the change in the characteristics of the mechanism, to adjust them.

These changes may be related:

• With a change in speed;
• Degradation of smoothness;
• With the lack of density of the junction of the door leaf to the opening.

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

• For slow or fast closing of doors, you need to turn the adjustment valve clockwise or counterclockwise, depending on the need to accelerate or slow down the door leaf movement;
• Adjustment of the speed of junction of the blade with the opening should be performed by turning the second valve of the mechanism;
• To delay the door when it is closed, you need to leave the door open at position 90? and increase the clamping torque, but not more than 2 turns from the starting position.

Prevention of the mechanism

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

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

• To carry out regular processing of all metal parts with compositions that protect against corrosion, lubricate them for a smooth ride.
• Make adjustments to the parameters of the door. It is recommended to change these indicators every six months.
• Properly operate the device.

It is not necessary because of the slightest failure of the mechanism to acquire a new mechanism. You must carefully inspect the equipment and decide how to fix the door closer. Perhaps this will require only a screwdriver and your efforts.