Synchronous activation of the vacuum cleaner. Do-it-yourself vacuum cleaner repair: what breakdowns occur most often and how to fix them. Vacuum cleaner motor switching diagram

The design and diagram of the vacuum cleaner provides for the following main devices: an indicator (signaling device) for filling the dust collector with dust or a device for automatically turning off the engine when the dust collector is filled; electric motor power control device; automatic cord winder; replaceable paper filters for one-time filling or dust pressing device; air flow control device.

Modern vacuum cleaners also have a built-in filter, which accumulates all the dirt and dust after cleaning the room.

For proper operation of the engine, the vacuum cleaner has an interference suppression circuit on the power supply inductors. They are used to smooth out high frequency network ripples. After the chokes, the voltage is supplied to the smoothing capacitor and only then the smoothed voltage is supplied to the engine. The capacitor is also designed to smoothly start the vacuum cleaner motor

Almost every vacuum cleaner has a special compartment into which the network cable of the vacuum cleaner goes; the length of this cable is about 3 meters

Expensive models of vacuum cleaners include an electronic control system, a touch-sensitive power regulator and an engine operating mode switch. The vacuum cleaner should also be equipped with small wheels for easy operation and movement. The diagram shows: 1 - dust bag, 2 - input filter, 3 - output filter.

Air suction unit design

The air suction unit consists of an upper 2 and lower 1 housing, a shield 5 and an electric motor with a fan device 15. The armature 13 of the electric motor is mounted on two bearings 4 and 9, closed with covers 3. 8. The rotation of the armature is left. The stator 12 of the electric motor is fixed to the shield 5 and the upper housing 2 using screws 6. In the upper part of the unit on the shield 5 there are brush holders 7 of carbon brushes 11. The brushes are closed with a cap 10. In the lower part of the unit, turbines 14 of the fan device are located on the armature shaft and are secured with a nut 16.

The vacuum cleaner does not work or works intermittently- Check the power socket by plugging in a table lamp. Check the connecting cord and plug. To check, use a test lamp, probe or ohmmeter. Connect the break point and carefully insulate it. Check the vacuum cleaner switch. If necessary, disassemble the vacuum cleaner and inspect the switch. Clean and bend the contacts or install a new switch. Carefully inspect the contact connections of the electrical circuit, especially the soldering points and the presence of contacts at the junctions of the wires. Check the carbon brushes and motor commutator. If necessary, replace the brushes. Remove the carbon brushes, stretch their springs and install them in their old place. Remove the carbon brushes, wrap cotton wool soaked in alcohol or cologne around the rod and clean the inner surface of the brush holders. After this, install the brushes in place. If the length of the carbon brushes is less than 3 mm, they should be replaced. Clean the engine manifold with a rag soaked in alcohol or cologne. Use a match to remove coal dust between the collector plates

Recommendations for caring for your vacuum cleaner. Vacuum cleaners, compared to other household appliances, fail more often due to the use of high-speed commutator motors. The engine is cooled by the flow of exhaust air and therefore the vacuum cleaner can only work for 10-15 minutes without cooling, and 1-2 hours with cooling. After this, if you do not turn off the vacuum cleaner, it may fail. In this regard, when using a vacuum cleaner, you should adhere to a certain operating mode.

The degree of dust in the filter also affects engine heating. For good operation of the device, you need to regularly clean the filter and store the vacuum cleaner in a dry place. It is not recommended to wash and wet the filter, as this reduces the throughput of the unit, which may cause it to overheat. The vacuum cleaner requires constant care: it is necessary to change the lubricant of the motor bearings at least once every 2 years and check the condition of the graphite motor brushes annually

Vacuum cleaner diagram LG-V2600, LG-V2620, LG-V2800, LG-V3300, LG-V982, LG-VC7050nt, LG-v-c7070ct

Philips FC8600, HR-6836, HR-8003, hr8731, hr8733, hr8735, hr8745, hr8765, hr8837, hr8838, hr8847, hr8948, hr8978

Schemes of vacuum cleaners Samsung SC6657, VC-7700, vc-h110, vc-h113, vah-1113, vc-h114

"Veterok-4" works on the principle of a vacuum cleaner; its assembly drawing is shown in the figure:

Vacuum cleaner malfunctions can be roughly divided into two groups: electrical and mechanical. Let's consider several cases. The vacuum cleaner is plugged in, the switch is flipped, but it does not work and does not make the slightest sound. Obviously, no current is flowing to the motor.

Let's imagine the current path: socket, plug, cord, and finally the motor windings. Let's start the search from simple to complex. First, let’s check using any known working electrical appliance, preferably a table lamp, to see if the socket is in order. If the lamp is on, inspect the plug and cord. We look for kinks, mechanical damage, and especially carefully inspect the places where the cord enters the plug and the body of the vacuum cleaner. There should be a rubber ring on the body that protects the cord from abrasion and breakage. If an external inspection reveals nothing, we disassemble the vacuum cleaner and check with an ohmmeter the presence of conductivity in the cord wires from the switch to the plug. We check the switch with an ohmmeter. We replace faulty switches and cords.

Another case: the vacuum cleaner is plugged in, the switch is flipped, but there are interruptions in operation, sparking of the collector, which can be seen through the discharge hole.

First of all, you need to check the carbon brushes 4. Most often it happens that they wear out before the springs and the steel springs are in contact with the commutator. In this case, they must be replaced.

To replace the brushes, remove the sealing ring 8 and unscrew the screws 3. Take out the brushes, unscrewing the caps 7, and install new ones. Of course, all this is done with the vacuum cleaner unplugged. New brushes are placed with bevels against the rotation of the commutator.

After installation, it is necessary to grind for better contact of the brushes with the commutator. How to do this, see the picture. At the same time, you must not allow the slightest scratch on the turns of the stator or armature - this will damage the engine! If you can’t find original brushes, feel free to take larger brushes, but always of the same brand as your original ones (EG-8 brand brushes are good for vacuum cleaners). A smaller size can be easily made using a fine-grained file. however, it should be remembered that the brushes should move easily in the brush holder, without the slightest jamming. A small backlash is even useful - during operation the brushes heat up and the backlash will be removed.

When using a vacuum cleaner for a long time, the engine manifold becomes “greasy”. For better brush contact, it is useful to wipe it with solvent or alcohol.

When the engine operates, a so-called polish is formed on the surface of the commutator - a mixture of carbon brushes and commutator copper. When the polish is created, the brushes wear out the slowest. Grinding the commutator destroys the polish and the brushes will quickly wear out before a new polish is formed.

Sometimes commutator sparking occurs even with normal brushes. This may be caused by the following reasons: interturn short circuit in the armature or stator winding and increased load on the motor.

First of all, you need to check whether there is an increased load on the engine. This may be caused by a blockage in the air system of the vacuum cleaner or a jamming of the motor. In older vacuum cleaners with a long service life, the bearing on the armature on the fan side is almost always badly worn. Sometimes it is worn out so much that the armature begins to catch on the stator or the fan rotor catches on the housing. And even if it doesn’t catch, when the bearing is heavily worn, the air gap between the armature and the stator constantly changes, which causes current surges and, accordingly, sparking. In addition, the air filter that separates dust from the air does not filter the air 100% of dust. And over time, micro dust particles stick to the bearing lubricant and sharply deteriorate its properties, even despite the fact that sealed bearings are installed there. Therefore, the force for turning the bearings increases significantly, the current and sparking increase. This is easy to check - you need to take the armature by the bearing and turn it. A bearing with dust will hear a characteristic “crunch” instead of lubricant. We replace such a bearing or, as a last resort, wash it with a solvent and fill it with Litol-24 lubricant. If the bearing is closed, then you have to break the plastic protection on the inside (not in contact with air) and also wash and replace the lubricant.

If you spin an armature with good bearings, it should make at least 10-15 turns without crunching. The noise of the bearings should be even, there should be no backlash.

An interturn short circuit in an armature or stator winding is usually characterized by very strong, usually circular, sparking, most often accompanied by an insulation smell.

First you need to try to determine where the interturn short circuit occurred. First of all, we inspect the anchor. There should be no swelling of the insulation or blackening on the windings. Smell it; there should be no smell of burning insulation. Inspect the collector, sometimes there are short circuits between the plates, this can be seen with the naked eye. If the above signs occur, then things are bad. Anchors for vacuum cleaners are quite difficult to find. But rewinding anchors is a complex matter and only very qualified wrappers can do it. Therefore, most often the service life of rewound anchors is short.

It is quite simple to determine a short circuit in the stator winding - you need to remove the brushes and measure the resistance of the stator winding (OB) 1 and 2, as well as the resistance between the housing and the windings. The difference between the resistances of winding 1 and winding 2 should be extremely insignificant; they should not interfere with the housing. If the difference is significant (>10%), we change the one with less resistance. It's easy to wind it yourself.

Therefore, when disassembling the vacuum cleaner, be sure to mark the relative position of the brush holder traverse and the body. If not marked, you can go another way. We loosen the traverse and slowly turn it, fasten it, achieving the least sparking. If you have an ammeter, turn the traverse to achieve the lowest no-load current. It is strictly not recommended to do this while driving - when starting, the engine will jump out of your hands and the traverse will move on its own. Also, you should not turn on the engine without a fan attached. The peculiarity of vacuum cleaner engines is that they must always operate under load. Otherwise, it may break due to repairs.

When assembling the vacuum cleaner, check that you have not left a nut, screw or other object in it: if they get into the fan, they can completely destroy it. After all, the fan disks are made of duralumin with a thickness of about 0.8 mm.

Sometimes during disassembly the fan discs bend and then catch on the housing. In this case, during assembly, you need to place a washer under one of the disks. At the same time, the suction vacuum drops. Therefore, you need to disassemble the vacuum cleaner very carefully and not bend anything.

What are the most common mechanical problems?

The vacuum cleaner works, but the vacuum created has decreased; it sucks up dust very weakly. The engine makes a higher-pitched sound than usual. This means that there is an obstacle in the path of the intake air. There may be a foreign object in the hose. It can be removed by attaching a hose to the outlet. If this does not help or the design of the vacuum cleaner does not allow this, the hose is cleaned with a long wooden strip with a rounded end or a piece of thick wire with a hook.

Instructions

If you decide to disassemble your vacuum cleaner, then first decide why you need to disassemble the vacuum cleaner. Disassembling a vacuum cleaner can be complete or incomplete. In the first case, it means the complete dismantling of all parts, and in the second, the removal of only those parts whose dismantling does not require the use of special tools. You perform incomplete disassembly when you change the filters in your vacuum cleaner. It should also be noted that periodically it is recommended to completely disassemble the vacuum cleaner to remove accumulated dust and dirt. It is necessary to clean the turbine blades, as the accumulation of dust and dirt makes it difficult to rotate smoothly. You can extend the life of your vacuum cleaner if you monitor its technical condition. First of all, read the instruction manual for your vacuum cleaner, as each model has its own specific features.

Unplug your vacuum cleaner to prevent accidental electric shock. If the electrical wire becomes disconnected, separate it from the housing. Remove all external parts. Very often, attachments are stored in a special compartment of the vacuum cleaner; they should also be taken out. Remove dust and dirt from the removed parts and carefully set them aside.

Locate all the screws that secure the vacuum cleaner body. Carefully unscrew them. Try not to mix up the screws. To do this, take a sheet of paper and draw on it an approximate diagram of the location of the vacuum cleaner screws. Then place each screw in its designated place. The fact is that the screws may differ slightly in width and length. If you mix them up, you may accidentally disturb the plastic sockets.

After removing all the screws, carefully feel for all the plastic latches that usually secure the case. You need to press them to remove the vacuum cleaner body. It is best to use a special set of tools made of flexible plastic or hard rubber for this, as they will not damage the plastic of the vacuum cleaner. Under no circumstances use regular iron screwdrivers for this purpose, as the housing may crack from the impact of the iron.

After removing the case, the disassembly is almost complete. Now you should carefully clean the entire internal space, including the turbine blades. It is worth noting that further disassembly of the vacuum cleaner requires unsoldering. It should only be done in a special place and with special equipment. Also, all procedures must be performed with gloves so as not to leave greasy marks on the internal parts and not to stain your hands with oil.

Helpful advice

Only disassemble the vacuum cleaner yourself if the warranty has expired.

Sources:

• how to disassemble samsung vacuum cleaner

A vacuum cleaner is an indispensable assistant that provides high-quality cleaning of a house or apartment. Like all other household appliances, over time, a vacuum cleaner begins to do its job poorly or even breaks down. Most often this is due to the failure of its engine, for repair and replacement of which it is necessary to carefully remove the impeller without damaging it.

You will need

• - Phillips screwdriver;
• - flat screwdriver;
• - hammer;
• - metal strip;
• - platypus

Instructions

First, remove the vacuum cleaner body by unscrewing the two screws located under the compartment cover where the dust bag is installed. Now you can remove the plastic grille and unscrew the two screws. They are right below it. After this, the dust collector cover can be easily removed with a lid on which the unit control buttons and a knob for regulating power are located.

Next, unscrew the bolts in the dust collector itself and the two bolts under the removed cover, after which you divide the body of the vacuum cleaner into two parts, providing yourself with free access to its engine, and, consequently, to the impeller.

Regardless of the manufacturers and types of vacuum cleaner, the main differences lie in quality, power and design.

The most important thing in a vacuum cleaner is the electric motor, which creates a vacuum and, as a result, sucks in dust and various particles through special filters through which only air passes.
In different types of such devices, these filters are different, and flasks and just bags and cyclone-type vacuum cleaners.

But it is the engine and, occasionally, the electronic power (speed) control circuit that requires the most attention in this entire device.

Repairing the engine with your own hands is not difficult, if the breakdown is simple and the engine is still running, but you can hear the heavy running of the engine (when turning it off) or the engine begins to rumble or hum strongly, sometimes the vacuum cleaner gets very hot in a short period of time.

The heart of a vacuum cleaner, as we have already figured out, is the engine and, as a rule, a collector.
What is such an engine?
The engine is located in the housing where the fan impeller blades are hidden. It is of a tangential type, where air is drawn in at the center and exits through the periphery and then out through the rear filter.
The brushes in the engine are placed in special shafts made of brass, usually ordinary carbon in the form of graphite. Over time, the brushes rub against the commutator roller, their center grinds down and they become slightly semicircular, due to which the surface of contact with the commutator pads increases. The brushes in their shafts are pressed by springs, creating the necessary pressure of the graphite, in the process, to the collector. The brush will work until it wears off and the spring cannot properly contact the graphite with the commutator.
It is necessary to monitor the cleanliness of the commutator shaft itself, clean it from carbon deposits if necessary and remove the oxide layer to a copper shine.

The shaft is attached to the stator with two bearings of different sizes; as a rule, this is done to make it easier to disassemble it. The front one is usually large, and the back one is smaller.

The shaft is carefully knocked out of the stator using any suitable tools. Next, we look at the movement of the bearings; due to dusty work, they become clogged despite the presence of anthers. If necessary, the boots are carefully removed with a thin screwdriver or an awl, washed with a stream of WD-shki, after which the balls must be lubricated, for example, with a lubricant like Litol-24 or EP-2, after which the boot is put in place and snapped into its grooves in the bearing itself.

Disassembling the vacuum cleaner

To begin any repairs or preventive maintenance of the vacuum cleaner, you need to remove the housing. Each model has its own methods.
First of all, remove all the filters that make it difficult to access the motor, unscrew the housing screws, including the hidden ones (under the buttons, for example). After unscrewing all the screws, you need to carefully try to disassemble the case; if this fails, take a closer look at where else there may be latches or additional screws, if you do not pay attention to this, you can break the case.

Next, the entire electrical installation is disconnected; as a rule, connections are made on connectors.
The plastic motor housing is unscrewed from the frame, after which the motor is removed from its plastic housing.
In some models it is simpler and the motor itself is fixed in the vacuum cleaner body in special rubber grooves-seals or is tightly screwed to the general body of the vacuum cleaner.

Disassembling the vacuum cleaner motor

To disassemble the engine and remove the fan impeller First of all, we will remove the front part of the casing (above the impeller). We take a thin metal object, maybe a screwdriver, and carefully bend it from the side of the casing so that the screwdriver goes a little into the middle, then with a gentle movement we pull out the upper part of the casing, as a result of which the entire impeller becomes accessible to us.

The nut on the impeller usually has a left-hand thread (but there are exceptions). We try to unscrew it by holding the impeller with our hand, if it turns and we cannot unscrew the nut this way, there is one great way
So... we take a good multi-core wire with a cross-section of more than 1.5 mm in dense rubber insulation (to prevent slipping). We insert such a wire and wrap the collector shaft 2-3 times, turn to turn and stretch in different directions, thereby fixing the shaft motionless.

It is most convenient to do this together: one person fixes the collector using the ends of the wire stretched to the sides, and the second unscrews the nut on the fan disk.
The method is very convenient and safe for fixing an anchor. In the same way, when reassembling, tighten the nut.

After removing the fan impeller, unscrew the housing screws; by this time the brushes should already be removed.

If necessary, bearings are removed using available tools or special thread pullers. In particularly severe cases, the bearing may “stick” tightly to the bushing; a special hydraulic press is used to remove the bearings.

The main causes of vacuum cleaner breakdowns

• bearings
• brushes
• fuse
• network wire
• no contact in the switch
• motor windings, winding breakage or burnout (stator or rotor)
• capacitor failure
• failure of the electronic circuit of the power regulator

Loss of power and suction strength.
Most often, the cause is either clogged filters or faulty bearings.
The filter needs to be cleaned and the operation checked again, also check the operation (draft) of the vacuum cleaner without filters, since it happens that ordinary cleaning of the filter does not help and it needs to be replaced.
If the draft without filters does not provide the same working draft, you will have to disassemble the vacuum cleaner; the impeller on it should be easy to turn with your finger without much effort. Additionally, we remove and inspect the brushes and clean the commutator from carbon deposits using fine sandpaper or a piece of ordinary cloth.

In some cases, the tightness of the hose is broken; this may be either a violation of the integrity of the hose itself or the connecting pipes at the ends of the hose; the hose simply slips out of them a little.

The vacuum cleaner does not turn on.
If everything is normal with the voltage in the outlet, we disassemble the vacuum cleaner and first of all inspect the fuse and the power cord, especially at the very end of the cord on the winding drum at the soldering points.
If there is a tester, we call to see if there is contact.
The power button could be broken or the contact in it is simply broken, sometimes it becomes clogged, again, using a tester, we make sure that the button is working properly.
If all the elements have been tested by the tester and voltage comes to the motor brushes without any problems, and the brushes themselves are not worn out, then most likely you will face an expensive motor repair or simply replace it, since in most cases it is more expedient to install a new motor than to repair a tired old one by rewinding it.

If the vacuum cleaner worked for a long time and does not turn on then it is quite possible that the protective thermal relay on the engine itself has tripped as a result of overheating - in this case there is no need to repair anything, it will be enough to leave the vacuum cleaner to cool the engine.

The vacuum cleaner engine speed is not regulated.
The most common cause of such a malfunction is a breakdown of the triac in which the voltage through it is not regulated but passes freely through it without any control. It is possible that this element may fail, or perhaps there will be a loss of contact on one of the legs of this element on the board.
By slightly pressing the speed control knob, you can make sure whether the regulator itself is working properly or whether the contact in it may be broken and the regulator slider is not contacting its pad.

The vacuum cleaner emits a foreign odor and hot air.
First of all, you need to make sure that the suction inlet is not clogged, inspect the hose, check the retraction force at the inlet and whether the sound of the engine changes when you plug the inlet with your palm. In case of satisfactory operation of the suction system, we can assume that the motor and most likely the brushes are faulty.

The vacuum cleaner hums and rumbles- the reason for this action is the engine, and in particular its bearings. Most likely they need additional lubrication or, if there is a large shaft around their axis, they need to be replaced with new ones.

The cord does not tighten when you press the button or constantly tightens during operation- malfunction of the winding drum, perhaps the spring has burst, weakened or, on the contrary, is too tense.
We inspect the pressure roller of the button and, if necessary, after removing the drum, we wind or unwind the wire on the drum - changing the tension of the drum itself to the one we need.

Electrical circuit of a vacuum cleaner

As a rule, it is not complicated and is quite standard in most models.

Repair of washing vacuum cleaners (Karcher, Zelmer, Bork and others..) is not much different from those described above. Their design includes a pump that supplies water to the hose and a water filter at the inlet.
In models of vacuum cleaners with an aqua filter, thin streams of water sometimes break through at the junction of the hose and the body. Sometimes the pump gets clogged, and sometimes the electronics malfunction.

Not every person will be able to fix a vacuum cleaner, even with all the tools. But with this task it will be much easier to diagnose the cause of the malfunction and try to eliminate it, or if the cause is serious, contact the service center already knowing the cause, having the information presented in this article.

Any living space uses a large number of electrical appliances. You can easily repair vacuum cleaners yourself, just by having a standard set of tools with you.

Diagnostics

Regardless of the model or design of vacuum cleaners, most often any problems with this equipment are associated with engine malfunctions. If the device hums, gathers dust, or makes intermittent sounds during operation, the engine is malfunctioning. At the same time, if the vacuum cleaner does not suck up debris or the pressure is insufficient for normal operation, then most likely the hose is faulty.

Troubleshooting:

You can disassemble a standard Electrolux, Philips, Thomas or any other vacuum cleaner for repair according to the following instructions:

At the same time, servicing washing vacuum cleaners (Karcher, Zelmer, Bork and others) is significantly complicated by the presence of a water pump. It supplies water to the dust collector and is installed on its course, so in addition to the steps described above, you will also need to unscrew it.

Video: how to repair a vacuum cleaner yourself
https://www.youtube.com/watch?v=kAZJHUxzi2s

Repair

Before disassembling models of vacuum cleaners Hoover, Vitek, Samsung, Rowenta (Roventa) and others for parts in order to get to the engine and repair it, you need to check the power cord. Due to the fact that the cord is constantly in an active state (pulled from room to room, under constant tension), it quickly wears out. To check its performance, you can use the most common multimeter. After identifying the location of the fiber fracture, replace the faulty section or cut the cable to the required length.

If the pressure in a Dyson or Miele vacuum cleaner begins to noticeably drop during operation, then the first thing you need to do is check the filters. They become dirty after each use of this cleaning equipment, but not every housewife cleans them with such frequency and thoroughness as dust collectors. Once every few months you need to not only knock it out, but also wash it to remove lint. Otherwise, with each use, the vacuum cleaner will suck up less and less debris, and over time, quite serious engine repairs will be required due to deterioration in performance.

Photo - washing option

The operating diagram of a standard “dry” vacuum cleaner is a tandem of two motors. One is the motor, and the second is the engine that makes the brushes of the first motor work. It should be noted that in addition to the motor inside the vacuum cleaner, these same brushes and bearings can also wear out. In some models of vacuum cleaners (say, Siemens - Siemens, Vax, Vao, Dyson) you can repair them yourself, in most others it is better to immediately take them to a service center.

Your vacuum cleaner will last for many years if you use it properly, maintain it and follow the manufacturer's recommendations. But there are times when a household appliance breaks down. If the vacuum cleaner is under warranty, then you need to contact a specialized service center. If the vacuum cleaner is out of warranty, then if it breaks, it is not necessary to throw the device in the trash. You can also repair a vacuum cleaner yourself if you have some experience in electrical repair work. Repair of some parts, for example, replacement or maintenance of the electric motor of a vacuum cleaner, can be done at home without calling a specialist. The design of vacuum cleaners from most manufacturers is the same. Therefore, for example, we will consider repairing a vacuum cleaner using the Samsung brand as an example.

Like all mechanisms, vacuum cleaners have malfunctions that occur most often. We need to focus our attention on them. Household vacuum cleaners also have such problems.

• Vacuum cleaner filters are clogged.
• Broken power wire.
• Engine defects.
• Damage to the vacuum cleaner hose.

Cleaning the vacuum cleaner

Vacuum cleaner contamination is one of the most common reasons for poor vacuum cleaner performance. It is characterized by the fact that the traction of the vacuum cleaner noticeably deteriorates. To return the vacuum cleaner to normal operating condition, it must be disassembled and cleaned. The procedure for disassembling a vacuum cleaner is different for all brands and brands. But the principle is approximately the same.
How to disassemble the vacuum cleaner and clean it in the video below:

Repair of power cable

The power cord of the vacuum cleaner is plugged into the socket, but the vacuum cleaner does not turn on. And it doesn’t even show signs of life. This means we need to look for the reason in the voltage supply to the vacuum cleaner.
First you need to make sure that the outlet itself is working properly. You can check the presence of voltage in the outlet using a voltmeter. This is the most correct method. If you don’t have a voltmeter at hand, you can use another, known-to-be-good electrical consumer. It could be a table lamp or something similar. If the socket is working properly and there is voltage in it, we proceed to repair the vacuum cleaner. The vacuum cleaner must be unplugged from the outlet and its power cord inspected. The wire usually breaks at the junction with the plug or the vacuum cleaner itself. If the fault is not visually found, then the vacuum cleaner will have to be disassembled. You can watch the video above on how to disassemble a vacuum cleaner. Next, check the integrity of the supply wire wires using an ohmmeter. If the wire is broken, it must be replaced with a new one. If the wire is intact, then use an ohmmeter to check the vacuum cleaner switch and so on to the engine. If necessary, repair or replace them.

How to repair a vacuum cleaner

Thoughts about repairs arise first of all when the engine makes noise. There may be a lot of dust accumulated inside the device. To check this, you first need to disassemble the vacuum cleaner.
Required tools:
To carry out the analysis without permanently damaging the vacuum cleaner, you will need:

• Two Phillips screwdrivers for large and small screws, and two flat;
• Tweezers.
• Pliers or wire cutters.
• Socket head for 12.
• Bench vice.
• Lubricant for the engine if it requires it.

Important. To prevent vacuum cleaner repairs from resulting in injury, follow the mandatory safety precautions. During all manipulations, the device must be turned off. Only after voltage stops flowing into the vacuum cleaner can you begin to disassemble it.

Disassembly process

The vacuum cleaner must be disassembled in a strictly defined order:

1. First, remove the dust container and two filters: front and rear;
2. Use a Phillips screwdriver to unscrew all the bolts under the removed filter;
3. Now you need to remove the vacuum cleaner body. To do this, first raise its front part and only then the rest. The housing can be removed easily, without much effort;
4. You can begin to do a little cleaning of the vacuum cleaner body and the electric motor housing. All dust is removed with a simple brush or dry cloth.

For convenience, it is better to perform cleaning work outside.

Step-by-step instructions for disassembling the engine

The next step in repairing a vacuum cleaner is to inspect and repair the device’s motor.
To repair a vacuum cleaner motor, you first need to disassemble it. This is done as follows:

1. 1. Using a screwdriver, unscrew the two side bolts located at the top of the housing.
   2. Turn the body a little and look at the engine. If you try to remove it, you will find that the coil is preventing you from doing so. Carefully free the engine from its wires and disconnect all connectors.
   3. Carefully remove the coil wires so that the coil itself remains on the body, and remove the motor.
   4. After the engine is removed, you need to repeat the cleaning again.
   5. Now you need to remove the sealing rubber. To do this, you need to unscrew the two side bolts.
   6. Using a screwdriver, the two halves of the engine housing are separated.
   7. Next, the engine itself is removed from the plastic housing.
   8. Look at the top of the engine. You will see rolling. They need to be bent in the opposite direction. Then a screwdriver is stuck into any gap. Both halves are separated from each other. This way the turbine is freed from the housing.
   9. Using a 12mm socket, the bolt is unscrewed. What is important: the thread is left-handed, so when removing the bolt, it must be turned clockwise. In this case, you need to jam the engine stator with small wooden blocks. The entire structure must be supported.
   10. Now you can remove the turbine.
   11. Remove the washer and unscrew the two bolts.
   12. At the bottom you will find four more screws that need to be removed.
   13. Next you need to remove the brushes, after unscrewing all the bolts.
   14. We knock out the anchor. Insert the key into the hole and hit it with a hammer. The engine will jump out.
   15. Pay attention to the bearings. If they are in good condition, they can be coated with oil.
   16. Use tweezers to remove the boot. If the bearing spins with a rustling sound and remains dry, it needs to be cleaned and lubricated. You can use carburetor cleaner to clean it.

Reassemble the vacuum cleaner in reverse order.

Watch the video below on how to disassemble a vacuum cleaner:

Important. Before you repair your vacuum cleaner, especially the motor, be aware that its cost may account for a large portion of the total cost of the device. When in doubt, it is better not to undertake vacuum cleaner repair work yourself. Take it to the manufacturer’s service center, or to a good workshop, where they will perform high-quality equipment maintenance.

If desired, you can even rewind the stator of the vacuum cleaner motor.
See the video below for how to rewind the vacuum cleaner motor:

Hose repair

In vacuum cleaners, you can easily eliminate a malfunction in the form of a burst of hose at the connection with the plastic connector. You can repair a vacuum cleaner hose yourself using copper wire, wire cutters, a screwdriver and pliers.

• Pieces about 8cm long are cut out of the wire.
• You need to form hooks from them, then use this wire to secure the hose to the plastic part and align it.
• We tighten the turns of wire and remove unnecessary excess using wire cutters.
• Sharp edges are processed using a file or sandpaper.
• The seam area is covered with tape or tape.

For another option on how to repair a vacuum cleaner hose, see the video below: