How to adjust the door closer quickly and correctly

Door closer, like many other devices, requires regular and careful maintenance. Constant loads associated with the daily cycles of opening and closing the door, create an unbalance of the nodes of this device. You can fix this trouble yourself. For the request “how to adjust the door closer video, you will find the desired video. And the rest will be prompted by the article.

Types of closers

To imagine how to adjust the door closer, you should first get acquainted with their types and features presented in the table:

Benefits	disadvantages
	In this system, the gear and the gear piston are in constant engagement. In this case, the piston moves along the axis when the door leaf rotates. At the time of its opening, the lever design moves in an arc. When the gear axis rotates, the piston moves horizontally and compresses the spring. Releasing the door opens the spring, which presses on the piston in the other direction, and the door closes.
	In this case, the sliding guide is located on the surface of the frame of the opening or on the door leaf; there is no shoulder for optimal transfer of force, which does not allow the force process to proceed favorably. Modern designs have a cam located between two pistons: brake and opening. When opening the door, the cam evenly compresses the spring through the opening piston. Spring release moves the opening piston back, the cam returns to its initial position, and the brake piston holds the door.
	The installation of such modifications should be considered at the design stage. Due to the absence of a lever mechanism, such closers have a large torque on the axis, which requires the installation of a more powerful structure. The power locking roller reliably ensures the synchronous operation of the door leaf and hydraulics.
	The device has an internal mechanism that serves as a shock absorber. When closing the door, the hinges prevent the blade from hitting the door frame, and ensure a smooth closing 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, for which you can catch, and then break the mechanism. To avoid this, place the product at the highest points. But it may decrease the strength of the structure.

When to adjust the door closer

Proper 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 changing seasons of the year.
• Minor damage should be fixed immediately. It can be:

1. Hard operation of the opening mechanism.
2. Opening doors too fast.
3. Sharp, jerking their opening, or vice versa - too tight.
4. Slow moving web.

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

• Adjustment of door closers is made during installation of devices (see Installing a door closer with your own hands), and during their operation. Due to the decrease in the outside temperature, the viscosity of the oil, which is used in the device, increases, which can lead to a decrease in the speed of closing the door. This requires additional adjustment of input equipment with the onset of winter.
• The periodicity of adjustment of the closer affects the duration of its previous operation, the weight of the canvas, the frequency of movement through the doorway.
• Adjustment of the closing mechanism should be performed 2-3 times a year.

Operating rules

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

The devices do not have different anti-vandal mechanisms, which requires very careful and rather delicate handling of them. After selecting the closer, you need to make sure that according to its characteristics it corresponds to the conditions where the device will be installed.

Wherein:

• Class closers 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 and the mass of inertia: the weight and size of the shoulder of the web. For example, a device designed for a web weight of 40 kg (EN1) will not be able to close a metal door that weighs 120 kg (EN7).
• Do not help the device to work.
• Do not hold the door leaf openif the mechanism does not have a commit function.
• Do not turn the adjusting screws unnecessarily.mounted on valves.
• Necessary to coordinate with the seller of the equipment left or right door opening.

Adjustment of the closers

Before you adjust the door closer, you must have:

• Passatures.
• Wrenches.
• Screwdriver.

According to the instructions applied to the product, you can make the adjustment device with your own hands. Several functions available in the mechanism can be adjusted using simple methods. And how to adjust the door closer, tell the video.

Door speed adjustment

The operation of the door closer is similar to the operation of a car shock absorber.

Wherein:

• A man, with some effort, opens the door.
• This force, through the built-in system of levers, compresses the power spring of the door closer.
• The spring is cocked, and when the door is released, it starts to reverse.
• The spring transmits its force to the rod or toothed rack, which, through this system of levers, tries to return the door leaf to its initial position.
• The rod, moving in an oil environment, moves the oil through the nozzles.
• Due to the hydraulic resistance of the nozzles, the oil impedes 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 nozzle, which lets in oil, is increased or increased.

To change the speed in the devices, set the adjustment screw. In the photo below, it is indicated by the icon "C".

When the screw is rotated, the door closing speed changes. This is how the door closer “Diplomat” is adjusted. Its adjustment screws are located on the end of the device. At the same time, the speed of movement of the canvas can vary in the range of opening doors from 15 ° to 180 °.

Tip: Adjust the speed of closing the door should be done very carefully. When the adjusting screw is fully inverted, the system will depressurize and leak oil. The closer will fail.

Setting the speed of closing the door should be carried out regularly, no less than six months. This is necessary for preventive purposes, and because of a possible change in the physicochemical properties of the oil. To better present the process, it is worth watching the video in this article.

Installation dohlop

Such a function as a dead sign is very relevant. This adjustment is especially important for door designs with soft seals, combination and magnetic locks. What and how to make a video prompt.

Such doors are very important, as is the moment of their closing. The range of movement of the canvas is in the range from 0 ° to 15 °. In such a range, the web should close slowly and reliably.

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 pre-rotation adjustment screw is provided. When it rotates, the characteristics of the movement of the web in the range of 15 ° will change.

Screws for adjustment of speed and dokhlop, are located on the panel of a product nearby.

Screw dohlop, as well as speed adjustment requires great care when working with him.

Adjusting the dohlop should be carried out only after the debugging of the speed of movement of the doors. Turning the adjusting screw clockwise, you can reduce the speed, and against it - increase.

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

Adjusting the open position of the door

There are cases when the door requires a long time to keep open. In this case, you need to know how to properly adjust the door closer so that the opening is open.

The mechanisms have the function of restraining when the doors are open - “hold open”. Its setting is performed when the door is open at 90 °, tightening the lock.

Thereafter:

• The doors remain open when they are plowed to the desired degree of opening.
• In the device, the lock is activated, which holds the door in the open position for the required period of time.

• To close the door, it is enough to slightly pull it towards you, and the fixation will be removed.
• In case of incomplete plowing, the canvas moves normally without delays.
• The spring tension value is set by an adjusting nut.
• Rotating it clockwise, you can increase the opening angle of the door, and turning it counterclockwise increases the effort to open the door leaf.

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

For each type of door, it is necessary to choose the door closer correctly - the device and the adjustment of all functions of the device must be performed as recommended by the operating manual. Installing the device on the door reduces the load on the hinges when moving the blade.