Repair of blinds and roller blinds: tips and recommendations. How to repair roller blinds yourself

Roller blinds are functionally similar to horizontal blinds, but much more practical and easier to use. Their design is not complicated: brackets for mounting on windows, a rod on which the canvas is wound, a weight bar at its bottom and a chain for control.

But such simplicity of the mechanism does not always mean the absence of breakdowns. There are various reasons why blinds fail. The ability to repair roller blinds depends on the type of damage.

Roller blinds.

Roller blinds: positive aspects

Advantages:

due to the lifting mechanism, it is convenient and simple to operate the structure;
Can be installed on both plastic and wooden windows;
do not require special care;
thanks to the simple mechanism, this design will not fail;
if the installation was carried out strictly according to technology, taking into account all the subtleties, then the curtain will be able to completely darken the room;
huge selection of colors.

Do not confuse Roman and roller blinds. Their lifting mechanisms are completely different. Roman models are assembled using a cord, and rolled ones using a special lifting rod located at the top of the structure.

Before moving directly to the manufacture of the mechanism, you need to know the features and types of roller curtains.

Do-it-yourself roller blind repair

Roller blinds are functionally similar to horizontal blinds, but much more practical and easier to use . Their design is not complicated: brackets for mounting on windows, a rod on which the canvas is wound, a weight bar at its bottom and a chain for control.

But such simplicity of the mechanism does not always mean the absence of breakdowns. There are various reasons why blinds fail. The ability to repair roller blinds depends on the type of damage.

The main advantages of roller blinds

Roller blinds are multifunctional, convenient and have many other advantages:

Durability
- retains its original shape and appearance well even after long-term use;
Environmentally friendly
- made from wood fiber or natural fabric;
Easy to care for
– they do not collect dust or accumulate dirt, as they are coated with an antibacterial composition;
Large selection
- presented on the market with the widest range of models, colors and textures.

Roller blinds are an ergonomic, stylish way to decorate windows. They will serve you for many years without losing their original aesthetics and other characteristics.

What can cause roller shutters to break?

The main cause of any malfunction is the closing/opening of roller blinds too abruptly. Therefore, you should not put a lot of effort into operating the roller shutter: this will only harm it. It is also important to adhere to the rules of caring for the system: from time to time, lubricate the guides with a special silicone-based product.

The second popular reason is initially incorrect installation . Therefore, if you are not confident in your abilities, entrust this procedure to the masters. Installation of roller blinds by a specialist is inexpensive and takes minimal time.

Peculiarities

This design is mounted on a frame or in a window opening. Despite the fact that they do not look expensive, they look no worse than expensive models. Due to their convenient lifting, roller curtains are used not only in residential buildings, but in offices and kindergartens.

The curtain acts as a rod-shaft onto which the material (selected fabric) is wound. Using special garters, the material is fixed to the upper part of the structure (where the shaft is located). Laces/ribbons are used to make garters. Their number can be any.

After you have found out what the features and advantages of such a product are, you can proceed to its manufacture.

Crooked dog

The Pawl, which has one end in the track slot and the other end down, needs to be rebuilt to get it to come free. Gently press on the side that is in the down position and then press on the side that is in the up position to evenly align the latch. The roller can tilt in such a way that the blind cords do not pull equally, resulting in one cord being lifted at one end and the other not moving the pawl at all. Once you return the latch to the down position, apply a little lubricant to the pins to help them move smoothly along the guide.

Check the cords that pass through the locking mechanism to make sure they are not knotted or bunched, as this will cause the pawl to get stuck.

Reinstall the blinds; raise and lower them several times to make sure they work correctly.

Source

Cassette roller blinds Uni-2 with spring

Cassette roller blinds uni-2 (uni-2) with a spring mechanism are somewhat different from free-hanging ones. This type of roller blinds is installed only separately on each sash of a plastic window. The fabric sheet is fixed on the sides by “U” shaped guides, but not ordinary ones, like the standard Uni-2, but with special runners, for which the brake, placed on the finishing strip of the curtain, is fixed.

A special feature of this system is that the system can be installed and operated upside down. The result is bottom-up systems. And even more than that, if the cornice is mounted on the sash not horizontally, but vertically, then the curtain will open from right to left or in the opposite direction.

In order to lower or raise the curtain fabric, you first need to release the finishing strip so that it can freely move along the guides. To do this, you need to grab the handle attached to this bar, turn it a little around its axis (at this time the brake in the guides is released) and now you can move the curtain up or down, the spring, in turn, will always try to twist the curtain fabric into a roll.

Externally, this system is practically no different from the usual Uni-2, with the exception of the absence of a control chain; it is called roller blinds without a chain, i.e. with a spring.

Scheme of Uni-2 cassette roller blinds with PIM

Decorative box
Additional high profile, for sticking adhesive tape
Finishing bar weight
“U” shaped guide for PIM
Control mechanism complete with spring
Steel pipe Ф 25 mm
Double-sided tape for guides
Double-sided tape wide for adapter
Fasteners
Plastic strip fastener (fixes the lower plumb line on the fabric)

Video of roller blinds Uni-2 with PIM

Watch a detailed review about Uni-2 cassette roller blinds, the video consists of several parts:

Review of roller blinds with PIM
How to order cassette roller blinds with springs in an online store (website functionality shown)
How to take width and height measurements for ordering in an online store
Curtain options - top-down (box on top) or bottom-up (box on bottom)
Unpacking blinds purchased in the video online store ZHALYUZNIK
Installation with double-sided tape
Self-tapping installation
Dismantling (Video for information)

Dismantling a cassette with aluminum guides secured with self-tapping screws

Disengage the chain from the holder.
Remove the two end stops from the chain.
Raise the curtain all the way up.
Remove the cassette plug from the chain mechanism side. Place your fingers on the side surface of the cassette plug, rest your thumb on the top of the plug and pull the plug from the cassette towards you. Leave the plug hanging on the chain.
Remove the second plug in the same way.
Unscrew the two lower self-tapping screws or screws securing the cassette using a Phillips-head screwdriver. Unscrew the two top self-tapping screws or cassette mounting screws.
Lift the cassette and remove the blade from the guides. Place the cassette aside.
Remove the guides glued to the tape. Using the blade of a stationery knife, pry the guide from above and cut the layer of glue with smooth rocking movements, moving the knife from top to bottom.
Remove the chain holder. Remove the plastic cap. Unscrew the self-tapping screw or screw with a screwdriver.
Seal the remaining holes from the screws with silicone.
Remove the adhesive from the tape from the window with alcohol or lighter gasoline.

Why do roller blinds break?

The service life of this type of blinds is on average 5 years. If there were no breakdowns during this time, it means that the quality of the product meets the standards and the installation was carried out correctly; most likely, natural wear and tear occurred.

If problems arise after 2-3 years of use, then there are objective reasons:

Incorrect operation. Most often, breakdowns occur because of it. One of the mistakes is putting too much tension on the chain, when you just need to lower and raise the curtain, keeping the thread in a vertical position. This situation is solved with the help of a chain clamp, which is attached to the frame. Sharp jerks can also gradually render the curtain mechanism unusable: the outer links slip out of the lock and the chain is simply pulled out of the lifting block.
Installation errors. Manufacturers of roller blinds claim that the products are easy to attach using self-tapping screws, and even more so with double-sided tape. However, everyone has their own ideas about ease of installation. The most common mistake people make is not installing it level.
Manufacturing defects. Before installation, you should carefully inspect the components so that, if necessary, you can immediately replace them or declare that they are missing.

Control circuit failure

Chains in most cases are made of plastic. Plastic is a cheap and practical material, but not durable enough. It cracks and frays, especially with constant folding and unfolding of the roll using force, jerking and tugging. Sometimes the outer links fall out, and the person does not notice this, continuing to pull the chain, pulling it out of the lifting block.

If links fall out of the chain lock, it is quite possible to return them to their original position with your own hands. Carefully open the device block, insert the chain into the channel of the lifting mechanism, insert the free ends into the lock and reinstall the mechanism.

If the plastic chain has become unusable, there is no chance of repairing it - it must be replaced with another one. Replace it in the same way, removing the lock and installing a new control chain. If it breaks frequently, you can replace the chain with a lace or braid made of a stronger material. To prevent children from tugging at the chain, you can attach the chain in a lock with glue - this will prevent it from breaking.

Control circuit

What you need for work

To work you need to purchase/stock:

threads, needles;
iron (you will need it to smooth the fabric);
screwdriver;
screwdriver;
stapler;
dimity;
wooden block 25x35 millimeters (it should not be shorter than the width of the window opening);
tube (both metal and plastic are suitable);
fastening elements: self-tapping screws;
two pieces of hooks and rings (diameter about fifty millimeters);
ribbons/laces;
wall hook.

You need to stock up on a lot of materials

How to care for a roll structure

An unusual curtain requires special care, different from the care of a standard curtain.

Cleaning. It is better to clean curtains frequently using a dry method, namely with a vacuum cleaner. Wet cleaning of dust is carried out as it gets dirty (usually once a month) and for this use a standard sponge slightly moistened. Do not wash or soak the fabric in water, as this procedure will lead to damage. If there is a stain on the curtain, it should be treated with a stain remover spray and only then carefully remove the remaining spray using a damp sponge.

Drying. After wet processing, the curtain fabric does not need to be rolled onto a roller, but wait until it dries completely unrolled.

Exploitation. The process of folding the panel must be done slowly to avoid the formation of folds and creases. When preparing food, it is advisable to raise the curtains so that they do not absorb fat and food aromas.

The most common types of breakdowns and their elimination

In most cases, roller blinds can be repaired yourself. In some situations, a master will help. And sometimes it makes more sense to make a new purchase than to pay the same money for repairs.

Latch malfunction

With this problem, the canvas is not fixed at the required height - it constantly lowers. This nuisance will not prevent those who have a chain lock on the window frame from using blinds - it is often used for these purposes and they do not see a big problem here. But manufacturers do not always include it in the package, and buyers do not want to drill extra holes in plastic windows.

Dismantling a cassette with aluminum guides secured with tape

Disengage the chain from the holder.
Remove the two end stops from the chain.
Raise the curtain all the way up.
Remove the cassette plug from the side of the chain mechanism, leaving it hanging on the chain.
Remove the second plug.
If the cassette is attached to the adapter, rest the fingers of your right and left hands on the casing, pry the casing from below with your thumbs and separate the cassette with a twisting movement from the bottom up. Remove the adapter, glued to double-sided tape, using the blade of a stationery knife.
If the cassette is attached to the window without an adapter, pry its upper left or upper right edge with the tip of a knife blade and break the adhesive connection with cutting movements. Alternately cutting the left and right adhesive seams of the cassette from its ends, tilt the cassette towards you until it is completely free.
Remove the guides glued to the tape using the blade of a stationery knife.
Remove the chain holder. Remove the plastic cap. Unscrew the self-tapping screw or screw with a screwdriver.
Seal the remaining holes from the screws with silicone.
Remove the adhesive from the tape from the plastic surface of the window with alcohol or lighter gasoline.

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Types of faults of different types of blinds

Blinds are made from natural and artificial materials:

plastic;
duralumin alloys;
fabrics (cotton, jacquard, fiberglass, polyester);
valuable or inexpensive wood species.

By design they are:

lamella (horizontal and vertical);
with solid fabric (pleated, corrugated, rolled).

When using different types of blinds, the following problems are possible:

In horizontal blinds, the slats may become deformed, the control mechanisms may become unusable, the lifting threads may break, and the ladders securing the slats may break.
In vertical structures, damage to the lamellas, breakage of the cord for their regulation, breakage of the control chain, and destruction of hangers (runners) are likely.
In fabric models, the lifting mechanism may break, the control chain may break, or the fabric or fastening threads may be damaged.
If the operation of the blinds is regulated by an electric drive, then there are cases when the electric motor, power supply or radio receiver fails, or the control panel breaks down. When connecting to the Smart Home system, the software may crash (but this happens quite rarely).

Most faults can be eliminated yourself by replacing structural elements that have become unusable. During repairs, spare parts are used, which are usually sold complete with blinds. If there are no spare parts, then they are purchased in the store: the City Blinds company offers any components for roller and classic blinds, pleated, corrugated.

Design of horizontal blinds

In order for you to better understand the tips for repairing horizontal blinds, it’s worth taking a closer look at their structure. This diagram shows the main elements:

The slats of horizontal blinds are mounted on a rotating mechanism and are controlled by adjusting the shaft using a cord and a control knob. The user can rotate the slats to set the ideal position, giving the desired degree of illumination in the room; In addition, with the help of a control cord, the slats, interlocked with each other, are raised and lowered, also helping to regulate the illumination and access to the window.

The lower bar serves as a weighting agent and fastening for parts of the control mechanism.

A popular problem is uneven winding of the fabric

This situation is encountered in three cases : if the roller shutters have been in use for a long time (5-7 years), if the structure includes low-quality guides, if the installation was carried out incorrectly. The fabric may unevenly wind up and jam both during lowering and during raising of the roller blind. Also, the fabric may begin to wind in the opposite direction, but this happens quite rarely.

In addition, a similar problem occurs with curtains with a plastic control chain. After some time, the balls of the chain slide towards each other, the distance between them changes. This causes incorrect winding.

How to remove curtains correctly

Naturally, there are no special problems here. Many people think this way. When it comes to practical steps, obstacles arise. To prevent them, you need to predict everything.

If the installation of curtains on the windows was created by a specialist brought in from outside, then it is better to invite him again to dismantle them. This applies to the installation and removal of expensive metal structures of enormous size and electric drive. Typically, organizations specializing in roller blinds provide a guarantee on installation. Take advantage of the right enshrined in the service contract and invite a specialist to your home.
Before removal, you need to refresh your memory of the structure. The drawing included with the curtain at the time of purchase will help with this. If the drawing is lost, you need to contact the manufacturer's website for help. Typically, company managers do not refuse consumers a similar request and provide a drawing or diagram for free.
Look at the design drawing, understand the methods of fastening parts and decide on the sequence of actions.
Prepare your instrument. Almost always this will be a stationery knife with a quick-release blade, a screwdriver with a narrow flat tip, a screwdriver with a Phillips tip, and tweezers 7–8 cm long. It is not recommended to use a screwdriver to remove curtains. If the fastening screws are rusty, then the screwdriver bit can flare the head of the screw and it will have to be drilled out. Prepare a can of rust-fighting liquid. Very often, when installing curtain structures, the fastening screws are inserted into the reinforcing iron profile of the window and can rust if the humidity is high. A functional liquid will help you unscrew such screws.
If the curtains were installed with self-tapping screws, be sure to prepare a gun with a bottle of sanitary snow-white silicone. After removing the structure, all the holes left by the screws must be filled with silicone.
Clear the surface of the table from third-party objects to place the removed curtain, prepare a small plastic container for collecting fasteners and small parts.
Place a stepladder next to the window. It will provide additional support for your feet while working.

The subsequent steps for removing curtains of various designs and fasteners from the window will differ.

Damage to the canvas

The fabric may become dirty, torn or otherwise deteriorated during use. The only solution in this case is that the canvas needs to be replaced. But the time or money costs are not always worth it, so most often the entire structure is changed. The exception is electrically operated roller blinds.

Proper care of the structure will increase its service life, as well as save both time and money on possible repairs of roller blinds. Therefore, you should carefully study the operating instructions and follow the recommendations there. This is especially true when it comes to the subtleties of using the structure itself and cleaning products.

Breakage or loss of control circuit from the mechanism

This problem occurs as a result of improper use of roller blinds. In this case, you can also repair the mechanism yourself. Breakage occurs, as a rule, due to strong jerking of the chain. This leads to the fact that the outer links simply slip out of the lock, and with the next jerk the entire chain is pulled out of the control unit.

Repairing roller blinds with this problem is quite difficult. You will need to insert the chain back onto the mechanism sprocket, for which you need to open the control unit. All actions must be performed carefully. To do this, you can use a special tool, otherwise there is a risk of damaging the structure and rendering it unusable. After the chain is installed in the mechanism, its free ends must be secured in the lock. In some cases, gluing them will be appropriate, but only if this does not affect the functionality of the roller blinds.

If the chain does not slip out of the mechanism, but breaks, then it needs to be replaced. The actions will be similar.

Twisting of fabric on the shaft

The problem is rare, but also possible. It consists in the fact that the fabric twists on the shaft and begins to wind in the opposite direction. This can also lead to tissue tearing. Most often, this problem occurs when the upper and lower position limiter is broken or lost. But there are other reasons:

poor quality limiter material, defective design;
was not fully fixed;
someone just tore it off;
The limiter has broken due to constant overload.

The solution to the problem is simple - you just need to glue the canvas back onto the shaft or clamp it into a special groove, depending on the type of structure. After this, you should adjust the extreme positions and install limiters. That's the whole repair of closed roller blinds with your own hands.

Damage to the auto-stop or auto-lock

The problem is the inability to fix the curtain fabric at an arbitrary height. You can temporarily get out of the situation by using control circuits in the mechanism, but not every design has them. The fact is that they are screwed to the window profile, which not every customer likes. Therefore, they refuse such a detail.

In this case, the control unit will need to be replaced. Repair of roller blinds is carried out in the following sequence:

First you need to open the cassette, which will allow you to access the mechanism.
Now you can dismantle the canvas to facilitate repairs.
Remove the mechanism from the cassette, then install a new one.
Close the structure.

The repaired curtain must be handled as carefully as possible, otherwise the mechanism will have to be changed again.

Lifting mechanism failure

Have you been using a curtain for more than four years and the mechanism is malfunctioning? This situation is quite predictable and natural - a roller blind lasts 4-5 years on average. But if the fault was discovered earlier, there may be a manufacturing defect, or the fabric was initially chosen of poor quality. In this case, the only right decision is to purchase roller blinds again, taking into account the manufacturer’s reputation and the cost-quality ratio. You can buy roller blinds in Grodno at an affordable price by choosing the type and design of the product in the catalog.

In this situation, dismantling of the structure is also required. Perform all removal steps as in the case described above. Open the cassettes so that you can get to the control unit where the stopper is located. You won’t be able to fix the auto-stop with your own hands; you will need to purchase a new latch and replace the one that has failed.

Important: lifting mechanisms, no matter what type they are (cassette, automatic, spring), are not suitable for repair: they must be replaced with new ones.

Removing the cassette with a spring mechanism located on the bottom bar of the sash or window frame

Turn the curtain lock away from you by the handle and lower the curtain fabric down.
Place your fingers on the upper part of the cassette casing, resting your huge fingers on the lower part of the casing. Turn the upper part of the casing towards you, removing the cassette from the adapter. Remove the remaining part of the blade with the lock from the guides.
Cut the adhesive seam with the tip of a knife from the left or right end of the adapter. Pull the blade of the knife out of the body by 4 - 5 cm. Place the blade behind the adapter strip and cut the glue along its entire length with cutting movements up and down. Remove the adapter from the window.
Remove the guides glued to the tape
Use alcohol or lighter gasoline to remove traces of tape from the window.

Blade position offset

Often, textile owners are faced with the problem of a tight fit of the fabric to the surface of the glass or to the window frame. This is possible if the weighting material is incorrectly selected or there are defects in the installation of the roller blind control mechanism. Because of this, it becomes more difficult to open and close roller blinds, and the appearance of the curtain leaves much to be desired.

Replacing the weight bar may help. It is necessary to select an element by weight so that it ensures that the fabric hangs evenly without wrinkles or gaps. In other cases, the solution will be to replace the fastening, which is selected according to the window frame. Wood requires special strips, plastic - corners or ready-made fasteners.

Sometimes the fabric scrolls on the shaft itself, and you need to fix it by inserting it into a special groove provided in the design.

We have listed common malfunctions and the most gentle measures to correct them yourself. What else do owners of roller blinds need to remember?

Design of horizontal blinds

In order for you to better understand the tips for repairing horizontal blinds, it’s worth taking a closer look at their structure. This diagram shows the main elements:

The lower bar serves as a weighting agent and fastening for parts of the control mechanism.

Memo to roller blind owners

Control the appearance of creases, folds and twisting of the fabric during use and when hanging freely.
Pull the control chain almost vertically, smoothly and without jerking, do not pull or apply force.
Do not fix the curtain in the desired position with strong tension.
Treat the fittings with special lubricants. You can ask about them from the master who carries out the installation.
When washing windows, be sure to roll the curtains.
Do not place heating devices, electric dryers or fans next to the curtain.
Clean using the dry method - vacuum or brush.
If washing is necessary, remove the fabric by unfastening it from the structure and removing the bar.

If you are unable to fix the damage, do not be overly enthusiastic - trust the specialists who will repair your roller blinds quickly and without consequences, unlike amateur repairs.

Please note that a technician’s visit and repairs are comparable to the price of installing a new product, so before ordering roller blinds, you should carefully study reviews of the manufacturer, find out the warranty period (at least 2-3 years) and abandon the idea of saving. It's better to pay up front than to pay later. Buy good roller blinds and use them for the next five years without troubles or repairs.

Removing mini curtains

Remove the two end stops from the chain.
Raise the curtain.
Remove the chain lock from the window, if there is one.
Using a flat-head screwdriver, turn the screws securing the guides from the fishing line counterclockwise, and remove the fishing line from the lower fastener.
Open the sash and remove the lower line fastener.
If the lower line clamp is screwed onto a screw, remove the clamp cap, unscrew the screw and remove the clamp.
If the curtain mounts are attached to the window through tape platforms, pull the left bracket to the left and remove the curtain with the left bracket from the window. Pull the right bracket out to the right from the right tape platform. Using a knife blade, cut the adhesive seam holding the platforms and remove them from the window.
Clean the surface of the plastic from glue residues with alcohol or lighter gasoline.
If the curtain fastenings are secured with self-tapping screws, you need to use a flat screwdriver to pry the fasteners securing the roll in the fastenings and remove the fastenings or remove the decorative plugs holding the roll in the fastenings.
Remove the curtain assembly from the fastenings.
Use a Phillips screwdriver to unscrew the screws and remove the fasteners.
Seal the holes with snow-white silicone.
When placing the fasteners on the brackets, you must open the window sash, immediately press both brackets from bottom to top with your thumbs and remove the brackets from the sash.
If plastic guides are glued to the window, they must be removed using a stationery knife from top to bottom. You need to insert the blade of the knife between the upper end of the guide and the bead, use leisurely rocking movements of the blade to cut the adhesive layer, and separate the guide from the bead.
When attaching parts of the curtain structure with magnets to the window, use a Phillips-head screwdriver. Unscrew the magnets.

Do-it-yourself blind repair

When assessing the suitability of damaged blinds for repair, their design, extent of damage, availability of spare parts, and self-repair skills are taken into account. When performing the work, you will need scissors, tweezers, a hammer, pliers, a needle, and a small piece of wire bent in half. It is important to properly assemble the blinds after repairs. To facilitate this task, all stages of dismantling the structure are photographed sequentially.

Chain replacement

The usual length of the chain is 2 meters. If there is nothing to replace it with, then the torn thread does not need to be immediately pulled out of the fixing drum. We need to see what length will have to be thrown out to restore its functionality. If it is 10-40 centimeters, then the actions will be as follows:

Remove the vertical movement limiter from the chain.
Remove the decorative strip from the lock connecting the ends of the thread.
Remove the broken end from the lock.
Use scissors to trim the remaining thread so that at the end there is only a ball without a tail.
Insert the end of the thread into the lock and snap the bar onto it.
Check the rotation of the curtain lifting and lowering mechanism to determine the possible cause of the break. If the lifting and lowering mechanism jams and considerable effort must be applied to the chain, it is necessary to disassemble or replace it.
If the torn end was long, then there is no need to install a lowering limiter for the blade. With good springs, making several turns with the remaining chain, you can get the same result as with the limiter.

When replacing a chain, the following steps are necessary:

Compare the diameters and spacing of the balls on the torn thread and the spare thread. If the diameters and pitch match, replacement can be made.
Unscrew the screws in the lower brackets of the guides from the fishing line, remove the fishing line, pull the fishing line out of the holes in the weight strip of the blade.
Using a screwdriver, remove the clamps holding the roll rotation drums from the upper brackets.
Remove the web roll along with the drums from the upper brackets.
Pull the drum with the chain out of the metal tube with the curtain panel wound around it.
To check the operation of the lifting and lowering mechanism, pull the torn thread forward and backward. If the effort applied is small and there is no jamming, you can pull the chain out completely. When pulling, you need to pay attention in which direction it is easier to pull out, and in which direction the drum with gear rotates more easily.
Place 2-3 balls of the new chain into the grooves of the gear and lightly turn the drum 2-3 clicks. When turning the gear, you can use the back of tweezers to avoid breaking the springs. Insert it between the balls and lightly turn the gear until the end of the chain comes out of the restrictive casing.
Pull out the end of the thread with the balls and secure both ends in the lock, putting a decorative strip on it.
Insert the drum with gear and chain into the metal tube of the curtain.
Insert the curtain roll into the brackets. Snap the latches.
Pull the guides from the fishing line.
Check the rise and fall of the curtain.
Place the curtain lowering limiter on the chain.

Replacing springs in the lifting and lowering mechanism

Replacing the springs can be done if there is no spare drum. To do this, you need to buy any drum of the required diameter from any manufacturer.

There are three types of metal tube sizes - 19, 25 and 32 millimeters. Each of them requires a corresponding drum. When purchasing a drum, you should not pay attention to the size of the gear into which the chain is inserted. The wear of the old gear is small and can be reused after replacing the springs.

How to replace springs:

Disassemble the new drum using tweezers. Using tweezers, you need to squeeze the jaws of the shaft with the gear and springs and remove this shaft from the drum casing.
On the shaft with the gear and springs there will be a plastic bushing with a slot along the shaft. The ends of the twisted springs extend into the slot. It is necessary to compress the ends of the first spring with tweezers and remove the spring from the gear shaft. The spring is difficult to remove and warps on the shaft when removed, so you need to be patient. After removal, the spring unwinds. This will cause difficulties when installing it on the gear shaft of the old drum.
To facilitate dismantling and installation, you can try to tighten the ends of the springs with thread, wrapping it several times around the ends of the spring. Then it will be more convenient to pull the spring from the shaft with the ends of tweezers with notches applied to them.
Depending on the diameter of the gear, there may be 2 or 3 springs on its shaft. Installing three springs on a small diameter gear may result in the need to pull the curtain chain with greater force, which will cause premature wear of the gear or chain breakage.
After removing the first spring from the new drum, you need to try it on the old drum, squeezing the ends of the spring with tweezers. If the internal diameter of the new spring allows it to be put on the old drum, then it can be replaced.
Remove the old springs from the old gear shaft and put new springs on it, first tightening the ends with threads. If it is not possible to tighten the ends of the springs with threads, you need to put the spring on the shaft, insert one end into the slot of the sleeve with tweezers and, hooking the other end with tweezers, insert it into the slot of the sleeve. At the same time, the spring is compressed, its diameter decreases, and it moves with difficulty along the gear shaft. You also need to move it with tweezers, constantly adjusting the ends of the spring in the slot.
After replacing the springs, put the casing on the drum and insert the drum into the tube.
Insert the tube with the canvas into the brackets and secure with latches.
Pull the guides from the fishing line.
Check the operation of the lifting and lowering mechanism.
Place a stopper on the chain.

Repair of vertical structures

Before you repair vertical blinds, you need to accurately determine the cause of their breakdown. The final result and the amount of time spent will depend on this. All faults can be easily fixed at home.

Broken connecting chain

The bottom chain is a structure made of plastic balls through which a strong rope or fishing line is threaded. If used carelessly or incorrectly, it often breaks. Therefore, all repairs to this breakdown come down to replacing the chain. Decommissioning the old chain and installing a new one occurs like this:

Replacing the control chain

The reasons for the failure of the control chain are the same as for the connecting circuit.

The replacement process is a little more labor-intensive and includes the following sequence of actions:

Control cord problems

The control cord is used to move the slats along the cornice. Naturally, during use it may tear or fray. To replace it, you need to do the following:

Troubleshooting the slider

Of all types of blinds failures, this is the most problematic. Replacing a slider is a rather labor-intensive process that requires a considerable amount of time. In order to do this work, you need to disassemble the structure and do the following:

The curtain fabric rests on the window sill and is gathered into folds

This kind of trouble can happen if you attach one wide roller blind across the entire width of the window opening to the wall above it, while the window sill protrudes beyond the level of the wall. In this case, when you lower the roller shutter, it rests on the protruding window sill. And even if you constantly adjust it (which is inconvenient), then when ventilating, the plumb line on the lower edge of the curtain will knock on the wall due to a draft, and the roller shutter itself will not fit tightly to the window opening, which means it will let in light and heat.

In this case, measure the exact distance from the place where the roller blind is attached to the beginning of the window sill. Add 5 cm to it (needed for one turn of the fabric around the shaft so that the curtain does not come off when fully unrolled), remove the plastic plumb line and cut off the excess fabric.