Vacuum cleaner samsung sc6650 DIY repair

In detail: vacuum cleaner samsung sc6650 do-it-yourself repair from a real master for the site my.housecope.com.

Not many people know how to disassemble a Samsung vacuum cleaner with their own hands. Meanwhile, this is not very difficult. The presence of a special tool and the ability to handle it is often a sufficient minimum for success.

There are not many of them. As a rule, they are quite trivial, but when they occur, disassembly of the vacuum cleaner is required. You cannot do without it when diagnosing faults. The main reasons for the breakdown of the vacuum cleaner are the following:

failure of bearings;
wear of engine brushes;
engine failure;
malfunctions in the electronic system.

Along with the above, there may be other deviations in the work, but they, as they say, lie on the surface. For example, a fuse has blown. In this case, it is enough to replace it with a new one, and the vacuum cleaner will work again.

Before proceeding with the repair, it is necessary to prepare everything for this. First of all, you need a toolkit. Nothing unusual is included in it: a set of screwdrivers, pliers, a set of heads, an awl, a small hammer - that will be enough. Additionally, you need to have WD-40 fluid, EP-2 or Litol-24 grease, a soldering iron and a clean rag. To ring out electrical circuits, you will need an ordinary tester.

For those who are engaged in disassembly for the first time, it is advisable to have a camera with them - to record the disassembly sequence.

Disassembling a vacuum cleaner is not so difficult as it might seem at first glance. First you need to unscrew the mounting bolts from the case.

After that, it will be possible to remove the cover. Having disconnected the wires from the electronic board, we carefully separate the case from the controls. On this, the main part of the disassembly work can be considered completed. Next, we carefully take out the engine and carefully remove it from the plastic case in which it is placed.

Video (click to play).

All work must be carried out without the use of brute force in order not to break fragile plastic parts.

Since most of the malfunctions of a vacuum cleaner arise from the engine, it often has to be disassembled for repair.

This process is not difficult and looks as follows. Using a thin screwdriver, carefully remove the impeller cover. As a result, access to the nut of its fastening is opened. By unscrewing this nut, you need to remove the motor brushes and loosen the body tightening screws. It remains to carefully remove the anchor, and you can start removing the bearings. As a result of the work done at the workplace, you should get something like the following picture (pictured).

A readily available tool is usually sufficient to remove bearings, but sometimes a special puller is required. After disassembly, all parts are thoroughly cleaned of dust and dirt. Particular attention is paid to the bearing seating surfaces and the engine manifold.

The impeller nut has a left-hand thread. There are exceptions, but very rare.

Sometimes it happens that the vacuum cleaner suddenly stops performing its main function. Everything seems to work, and the dust is not sucked in. In this case, first of all, you need to get and inspect the filters. If the filters are clogged with dust, they must be cleaned. If cleaning does not work, the filters must be replaced. Before replacing, you need to turn on the vacuum cleaner without filters, and make sure that the suction power is at the proper level. If it is still small, you will have to inspect the impeller. It may happen that it is completely clogged with small debris.

At the same time, check the condition of the brushes and the engine manifold. Worn brushes must be replaced and the collector cleaned.The tightness of the hoses may also be affected, especially in the places where they are attached to the nozzles. You also need to pay attention to this.

Advice. The collector can be very carefully cleaned with fine sanding paper # 0 or # 00.

The next common malfunction is the vacuum cleaner does not turn on... There are three main reasons for this:

blown fuse;
open circuit in the network wire;
malfunction in the switch.

The fuse has already been mentioned, but to check the rest of the faults, you will need an ordinary tester. With its help, you can easily ring the wires and locate the breakage point. Then a soldering iron is connected to the case and the malfunction is eliminated.

Before starting to search for wire breaks, you need to make sure that the temperature sensor in the vacuum cleaner has not worked and that the motor has not been forcibly de-energized.

This happens when the vacuum cleaner has been in operation for a long time. No repairs are required here. After cooling down, the performance of the vacuum cleaner will be restored automatically.

If during operation the vacuum cleaner vibrates or squeals are heardgrinding, it means that there is a problem with the bearings. They need to be lubricated, and it is best to replace them immediately. The presence of sharp sounds in the bearing assembly indicates the development of its motor resource.

And the last trouble - the power wire is not tightened... Repair in this case is also not very difficult. Here the problem may most likely be in the spring. You need to get to the winding drum and inspect it. It is possible to weaken the spring or vice versa, tighten it. If everything is fine here, then you will have to remove the drum and unwind the wire from it (or vice versa, rewind it). This will adjust the tension force of the drum.

During inspection, it is necessary to check the performance of the pressure roller. Vacuum cleaners of any brand are not immune from such a malfunction, when the engine speed is no longer regulated. In this case, the problem needs to be looked for in the electronic control unit... It is simply not recommended to repair it yourself.

The process of disassembling and repairing a Samsung vacuum cleaner is not very difficult. It can be done independently with minimal knowledge of electrical engineering and the ability to handle a locksmith's tool.

Today they brought me a vacuum cleaner to the workshop for repair, or to be more precise, in order for me to change the motor. Everything would be fine, but it was disassembled in a salofan bag. In general, the owner disassembled it, but it was not enough to collect the mind. It is clear that as a master, such surprises from clients are not even very pleasant to me, but I also have to collect such constructors. I will say this, if you are going to repair the vacuum cleaner with your own hands, then first of all you need to know the order of disassembly and assembly, otherwise it turns out later as in the video that I posted below. From the point of view of the master, disassembling and assembling a vacuum cleaner is a fairly simple operation, but for an ordinary person, this may seem like a rather difficult task. Especially for those who want to try themselves as a master of household appliances, I suggest reading this article

First, let's see what is, in general, the whole repair of Samsung vacuum cleaners. As I wrote above, this household appliance consists of several spare parts that can be easily changed by almost anyone. Before proceeding with the disassembly and assembly of the vacuum cleaner, I want to tell you about the diagnosis of parts, that is, what determines the correct operation of the vacuum cleaner

How to assemble and disassemble a vacuum cleaner with your own hands - video

I hope you watched this very informative video and decided for yourself whether to suffer yourself or entrust this work to someone who does it all the time. If you still feel that you can, then let's proceed to the next topic of our article, namely, because of what the vacuum cleaner does not start. It is important to understand that this malfunction is inherent not only in the Samsung vacuum cleaner, but also in other vacuum cleaners that have such a problem.First, let's list those parts that are responsible for turning on the engine.This video shows one of the reasons why the vacuum cleaner does not turn on

Regardless of the manufacturer and type of vacuum cleaner, the main difference lies 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 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 (rpm) control circuit that requires the most attention in this whole device.

Do-it-yourself engine repair is not difficult to carry out if the breakdown is simple and the engine is still running but you can hear a heavy engine stroke (when turned off) or the engine starts to rattle or buzz strongly, it happens that the vacuum cleaner gets very hot in a short period of time.

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

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

The shaft is carefully knocked out of the stator using any suitable tools. Then we look at the course of the bearings, because of the dusty robots they get clogged despite the presence of anthers. If necessary, the anthers are carefully removed with a thin screwdriver or an awl, washed with a jet of WD-pulleys, after which the balls must be lubricated, for example, with grease such as Litol-24 or EP-2, after which the boot is put in place and snaps into its grooves in the bearing itself.

To start some kind of repair or maintenance of the vacuum cleaner, you need to remove the case. Each model has its own methods.
First of all, all filters that impede access to the motor are removed, the housing screws are unscrewed, including secret ones (under the buttons, for example). Having unscrewed all the screws, you need to carefully try to disassemble the case, if this fails, take a closer look where there may still be latches or additional screws, if you do not pay attention to this, you can break the case.

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

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, you can use a screwdriver and gently bend it off the side of the casing so that the screwdriver goes a little into the middle, then gently push the upper part of the casing out, as a result of which the entire impeller becomes available 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 scrolls and in this way it is impossible to unscrew the nut, there is one great way
So .. we take a good stranded wire with a cross section of more than 1.5mm in dense rubber insulation (to prevent slipping). We push in such a wiring and wrap the collector shaft 2-3 times, turn to turn and stretch it 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 the 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.

Then carefully pull out the anchor, twisting the upper part slightly if necessary.

If necessary, the bearings are removed using a commercially available tool or special thread pullers. In especially severe cases, the bearing sometimes “sticks” tightly to the sleeve; a special hydraulic press is used to remove the bearings.

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

Drop in power and suction power.
The most common cause is either a clogged filter or a defective bearing.
It is necessary to clean the filter and check the operation again, check also the operation (draft) of the vacuum cleaner without filters, since it happens that ordinary cleaning of the filter does not help and it already needs to be replaced.
If the draft without filters does not give the same working draft, you will have to disassemble the vacuum cleaner, the impeller on it should easily turn with your finger without much effort. Additionally, we remove and inspect the brushes and clean the collector from carbon deposits using zero sandpaper or a piece of ordinary cloth.

In some cases, the tightness of the hose is broken, this can be both a violation of the integrity of the hose itself and 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 fine with the voltage in the outlet, 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 in the soldering points.
If there is a tester, we call for a contact.
The power button could break or the contact is simply broken in it, it sometimes gets clogged, again, with the help of a tester, we make sure that the button is working properly.
If all the elements have been called by the tester and the voltage comes to the engine brushes without problems, and the brushes themselves are not erased, then most likely you will have to repair the engine expensively 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.

If the vacuum cleaner worked for a long time and does not turn on then it is quite possible that the protective thermostat on the engine itself has worked as a result of overheating - in this case, there is nothing to repair, it will be enough to leave the vacuum cleaner to cool the engine.

The speed of the vacuum cleaner motor is not regulated.
The most common cause of such a malfunction is the breakdown of the triac in which the voltage through it is not regulated but freely passes through it without any control. It is possible that this element fails, and it is possible that contact is lost on one of the legs of this element on the board.
By slightly pressing down on the speed regulator knob, you can make sure whether the regulator itself is in good working order or the contact may be broken in it and the regulator slider does not contact its site.

The vacuum cleaner emits a foreign smell 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 on the part of the suction system, we can assume that the engine is malfunctioning, but most likely the brushes.

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 is not tightened when the button is pressed or is constantly tightened during operation - malfunction of the winding drum, perhaps the spring has burst, is weakened or, on the contrary, is too tight.
We inspect the pressure roller of the button and, if necessary, removing the drum, we wind up or unwind the wire on the drum - changing the tension of the drum itself to the one we need.

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

Regardless of the type of vacuum cleaner, the heart is called the engine. Television programs like to depict the creation of a vacuum, which, in our opinion, is an inept manipulation of words. The motor draws in air by the blade, the filter keeps the moving parts from dust. Each bearing is provided with an insert for this purpose. The engine is devoid of protection from vacuum ... Do-it-yourself repair of a vacuum cleaner is advisable when the heart of the device is functioning properly, there is a need to replace, modify the brushes, lubricate the bearings. It is charming that the devices are similar from the inside, like two drops of water. The mechanical part, the device for collecting dust, filters, brushes, hoses, housings vary. Accessories are an essential part of the appliance. The device of the vacuum cleaner, the basic idea remains the same!

The heart of the vacuum cleaner is rightly called a motor, traditionally a collector motor. Let's take a quick look at the design of an irreplaceable product and create a clear idea. In an asynchronous motor, a rotating field is created by the correct distribution of the phases by the windings, the winding collector commutes in series. There are unpopular exceptions. The direction of movement is determined by the direction of engagement:

The current flows, the fields work for attraction.
The current flows, the fields are repelled.

As for the question why the rotor turns exactly in this direction, not opposite when connecting the windings unidirectionally, the answer is revealed by the mutual arrangement of the brushes and stator coils, the structure of the collector. The number of coils is wound on the armature, equal to the number of contact pads of the shaft. The brushes feed a single winding at a time. Then the shaft rotates a certain angular distance, the next coil is energized. One revolution passes, the cycle begins anew.

Imagine the stator pole (so far only one - not two), located at the bottom. Suppose, at the initial moment of time, the brushes are set so that the armature pole is fed to the left of the building axis. Then, due to repulsion, the shaft begins to describe the hour hand. The axis passes the angular distance, the current begins to flow around the next winding, which managed to take the place of the previous one. This happens as long as the current exists. And there is no difference, constant or variable. The collector motor will run driven by the direction of the field. The speed of rotation is not determined by the frequency - by the design of the mechanical part, by the magnitude of the voltage.

Now if the fields are attracted, the rotation will start counterclockwise. By the time the stator and rotor poles become opposite each other, the power will be transferred to the next coil, which will begin to create the required force. The cycle is circular. Now the coils. Brush motors are equipped with a pair of stator windings for direct current because the alternating current encounters too much resistance from the inductors. This is why some brushed motors are designed with separate stator leads. It will allow you to use one instead of two windings.It is clear that the load capacity drops significantly. But losses are decreasing.

In a vacuum cleaner on the motor stator, we notice two diametrically opposite windings that help each other. Mutually beneficial coexistence is ensured by the correct direction of inclusion (wrote above). Reversing motors have a special power relay that switches the poles in proper order. For comparison, in an induction motor, a similar relay distributes the voltage phases in a different way. It turns out a reverse. The collector motor does not require a starting winding and a capacitor (one phase), which try to imitate the second winding. Simply put, the efficiency of three-phase asynchronous motors is higher. The brainchilds of Nikola Tesla and Dolivo-Dobrovolsky are used by industrial equipment, in the 90s they were replaced by collector equipment from household appliances (vacuum cleaners were traditionally supplied with graphite brushes before the restructuring).

Two brushes are used to transfer current to the armature. The difference is leveled, where the plus, where the minus, the direction is provided by the correct commutation.

Is it possible, by changing the order of connecting the brushes, to make the motor rotate in the opposite direction. The polarity of the field is reversed. This technique is used to obtain a constant voltage reverse. When doing self-repair of vacuum cleaners, remember the correct position of the contacts.

A tangential fan is hidden behind the filters for coarse and fine air purification. Air enters in the center, is discharged to the periphery, moving forward, enters the room through a HEPA filter that traps particles of a few microns (micrometers) in size. The blade is covered with a cover, the part is made in the form of curved aluminum partitions between two metal planes. Closed channels are obtained. The engine is enclosed by a plastic casing (traditionally white), in which the outlet flow path is cut.

It is interesting! Due to the presence of a tangential fan, the efficiency of the vacuum cleaner barely reaches 20-30%. With a power consumption of 1600 W, the suction will be 350 W.

Brushes are fixed in mines, it is useful for beginners to know: this is a typical pencil graphite (carbon, coal). You can, if necessary, sharpen the parts, adjust as needed, so that they become in place. If the area of contact with the collector is small, it is not scary, gradually the brushes will wear in. The tips are slightly grinded in a semicircle inward. Each brush is pressed by a spring through which the current passes, the measure will provide a long service life to the products. The carbon will work until it wears down to the ground. However, the copper collector must be kept clean. Wipe with your favorite product if necessary, remove the oxide film to a coppery shine.

The shaft is attached to the stator with two bearings. Different sizes to make it easier to disassemble the vacuum cleaner motor. The front bearing is large and the rear bearing is small. The shaft is carefully knocked out of the stator by suitable means (pneumatic puller), moderate heating helps. The bearings are equipped with anthers. Although the vacuum cleaner creates a vacuum, dirt gets in there too. The anthers are carefully removed with a screwdriver if necessary to lubricate the parts. Suitable: composition HADO, Litol - 24, EP - 2. The grease is put inside, the boot is put in place.

Do-it-yourself vacuum cleaner repair begins by removing the case. In each case, the methods are different. Filters blocking access to the engine are removed. The electrical installation is disconnected (the vacuum cleaner is unplugged), the plastic motor housing is unscrewed from the base. Remove the motor from the casing, after which the fan is removed. The nut has a left-hand thread, twist carefully. The fan is followed by a collector-cover, under which the electrical part is hidden. The further course of operations is clear from what was previously read up to the removal of the rotor.

If necessary, the bearings are racked off with a threaded remover or a hydraulic press. Aids are being used. Small balls with a diameter extending into the bearings.It is recommended to flatten on one side so as not to roll. Reverse mounting is done in a similar way. If you hold the armature by the bearing in your hand, the rotation should be fast, quiet, confident. When lubricating, the outer boot is removed, take the trouble to put new spare parts on the same side.

brushes;
bearings;
motor windings;
power wire;
fuse.

Other vacuum cleaners have two motors. The second is located on the brush, where it makes the villi move. Cyclonic models use a turbo, moving air does the work. Constructive refinement simplifies the manufacture of the hose, eliminates one big problem when the wire breaks in the thickness of the rubber. Of course, modern means will allow you to accurately determine the location of the incident, it is better to avoid breakage altogether. The idea of the designers, who placed the motor inside the brush, is easy to understand: there is no need to press when cleaning, the weight is decent. Do you like it, decide for yourself. In the opinion of the editors, the brush should be light to make it easier to operate.Repair of washing vacuum cleaners does not differ from that described above. However, the units contain a pump that supplies water to the hose. We will return to the question in the reviews later. As for the inlet path, the configuration does not differ from the usual one, excluding the presence of a water filter. Most look like dull boxes filled with water. In some vacuum cleaners with an aquafilter, thin streams of water hit the junction of the hose and the body. Primary dust collection is in operation. However, it is difficult to notice the malfunction. It's another matter if the vacuum cleaner is equipped with a self-diagnosis option, which will tell you the location of the breakdown.

Video (click to play).

The repair of robotic vacuum cleaners is closely related to the field of electronics. There are nothing service mechanisms at all. However, you will find the engine in a reduced size. Most of the functions are implemented in microcircuits, the memory accommodates various programs. Repairing Electrolux vacuum cleaners will seem like child's play compared to the task of adjusting the work of Rumba or Scuba by the American company iRobot (a developer of US army and police automation). A significant disadvantage of robots is the impossibility of cleaning uneven surfaces. Electronic servants lack the ability to create a vacuum ... use a rotating brush to sweep away dust.