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Why does not the water pump buzz? How the pump works. Submersible pumps "Malysh"

Pump "Little Boy", produced since Soviet times, is very popular among owners of their own homes and summer residents

At a budget price, it has good performance, which allows it to pump out water at a fairly considerable depth. But, like the whole technique, it breaks down.
Many owners do their own repairs to the pump baby. With engineering thinking and technical skills, it's quite simple and you can do it yourself.

What is the pump used for?

Truckers and farmers "Baby" is used for several purposes, this is:

Provision of water to the garden and cottage areas.
Providing water to private homes and cottages.
Entering the.
Water pumping.
Spraying of garden and garden crops.

The undoubted advantages of this pump are:

Ease of use.
Sufficient reliability and ease of construction.
Uncomplicated care and work.
Can work in wells.
There is no need for fastening.
The budget price.

Note. In order to repair the pump Baby, you need to know it specifications. They can be studied by reading the instructions for the Kid pump, which is included in the kit being sold.

Below are the main parameters:

Pump unit and operating principle

In order to make repairs to the baby's pump, you need to study its device

Its electromagnetic equipment consists of a core and two coils wrapped in copper wire.
So:

They are fixed with plastic resin, compound, and placed in a metal casing. Also in the composition of the compound is quartz sand, which guarantees high thermal conductivity.
The vibrator is an anchor with a fastening rod, which moves under the influence of electromagnetic forces. A spring made of rubber helps to return the vibrator to its initial state.
All parts from which this submersible pump is assembled are enclosed in a metal casing. At the top there is a rubber valve - a unit that often goes out of order.

In order to make the repair of the pump the kid himself requires knowledge of the principles of his work:

When it is plugged into the network, the anchor moves to the magnet under the influence of physical laws.
Further, the electromagnetic attraction force is stopped and the armature returns to its initial position by means of a spring of vulcanized rubber. The piston and armature change their position 50 times per second.
Water with air enters the hydraulic chamber formed between the limiting values of the elements of the piston.
This two-component mixture (air and water) has elasticity, which allows it to penetrate into the inlet valve. Then, leaving the outlet branch pipe, create a water advance in the hose or pipe.

Having learned the device, repairs can be done simply and easily, without referring to specialists.

Basic malfunctions and their elimination

Malfunction	Cause	Elimination
Slightly pumps water or does not pump it at all, while it hums.	Insufficient fastening of nuts on the rod of the shock absorber. Rupture and wear of the valve. The problem in the breakage of the rod.	In case of such a malfunction, as humming, but the pump does not pump the baby, it is necessary to disassemble it and tighten the nuts tightly until it stops. The nut must be fixed from above. Replacement of the valve. If the rod is damaged and deformed, its replacement is not possible.
When you turn off the corks and the cable is charred	The armature winding has burnt out. The damaged cable.	Change to a new winding. In the "Malysh" pump, the cable is expanded by the twisting method.
Pump overheats, strong vibration	The magnetic part of the pump exfoliates because of the lack of water.	The algorithm of action: Disassemble the pump. The electrical section and the magnet are separated. Bolgarka cut holes horizontally and vertically in 2 mm, also inside the shell. Treat the body with glue and sealant. Put the magnet in place. Assemble the pump.
Weakly, there is no pressure.	The gap in the vibrator is too small. Insufficient nut fastening (see 1 point).	Place additional washers on the vibrator in 1 mm.
When the pump is running, the baby turns off.	The relay becomes tired and disconnected.	Take a break for 30 minutes.

In order to understand the principles of repair, below is attached the video in this article.

How to get the pump "Baby" from the well

Often it can be raised from there, but what can I do if I can not get the pump out of the pump? You can call specialists, but in some situations you can solve the problem yourself.

Council. If it is twisted with a cable, then the latter is disconnected and disconnected. And then you need to carefully release the pump. To avoid such a situation in the future, it is necessary to attach the cable to the hose for lifting water.

With prolonged stagnation, the question arises as to how to get the pump to the baby from the well. To do this, you have to slightly rock the cable, pull the pump up, holding both the hose and the cable. This method of "swinging" will help even if the pump and well sizes do not match. Below is a photo of how it's done.
Well, in order to prevent reverse siltation of the well, it is necessary to do maintenance and preventive maintenance every four years.

In order to do as little as possible repairs, you need to know some nuances. The water that will be pumped by it should not be dirty. Its use will lead to clogs, frequent breakdowns and, in the end, failure.
Buy "Baby" is preferable to the upper fence: with the lower electric motor in this structure, it will cool much better, and the water intake from above will not absorb silt or mud.
To ensure that such a device as a baby pump repair was infrequent, you need to choose a model with thermal protection, which protects the engine. And the instruction included in the kit is to be strictly observed. All this will do without unnecessary breakdowns.

Vintage and Chestnut, Bosna and Dzhereltse, Strumok and Aquarius are popular among the inhabitants of the countryside. Comparatively (with foreign producers), low cost of pressure equipment of domestic production and high degree of reliability (according to reviews) are attractive for owners of wells.

No less than reliability in terms of performance and price, the dacha owners are impressed by the possibility of self-repair and maintenance of pressure equipment. After all, the ability to quickly solve the water problem on the site due to a pump failure without involving third-party specialists is always a plus. And the man and the saved nerves, the means and time of his household.

1 Briefly about the device

By and large, the design of all pumping equipment for private use is the same. The pump consists of:

housing, which has a hole for water intake;
electromagnet (dynamo);
vibrator (electric motor).

For deep wells, pumps with a top opening for water intake are used, for small wells - with a bottom or side water intake. However, the bottom water intake sins with periodic seizures of bottom impurities in the water from the well.

1.1 Principle of operation

Since all vibro pumps operate on the basis of the principle of inertia, the whole work is reduced to creating oscillations in the liquid, which is actuated by the membrane of the diaphragm and creates a difference between internal and external pressure. The difference in pressure created is responsible for pumping water .

The bending of the diaphragm creates a vibration. The more vibrational movements the diaphragm creates, the more intense the cooling of the motor with water. Therefore, it is forbidden to use pressure equipment without incoming water.

Dynamo (this is the name of an electromagnet) is:

core of steel;
two coils of copper wire, covered with enamel.

To install a magnet, you need to fasten the dynamo and the coils inside the case. To do this, we pour all the epoxy compound, which works simultaneously as an insulation and removes excess heat from the coils to the body for quick cooling.

The composition of the compound is necessarily epoxy, plus a hardener and plasticizer (with the addition of quartz sand). Quartz in this case serves merely as an additional heat conductor.

The electric motor consists of an armature with a rod on which a spring for cushioning and a piston (rubber) are installed. The better the quality of rubber, from which the spring and the piston are made, the more reliable and economical the pump is.

The direction of the rod is provided by the rubber diaphragm. It divides the two working parts of the apparatus - (electrics and hydraulics) and is attached to the rod for the remote clutch. The most vulnerable place in the design of any pump is a rubber valve that closes the water intake openings.

Vibration of the diaphragm occurs due to the fact that when the current flows into the motor, the armature begins to attract to the magnet and is thrown back by the shock absorber at the moment of polarity reversal (pole reversal ).

The higher the frequency of the current, the more vibrations per second the diaphragm makes. And the piston also produces a vibration of the same frequency.

The hydraulic pump chamber is the space occupied by the valve and the piston. The piston oscillates, the water springs at the expense of the air dissolved and not dissolved in the water, then shrinking, then loosening, and its excess is squeezed out of the hydraulic chamber into the discharge nozzle, and then into the hose. Constantly the maximum amount of working fluid in the pressure head is provided by a valve that allows and does not allow pouring back to the water.

The design with the top water intake and bottom electric drive is a classic of the layout of vibrating pumps. In them, the engine is better cooled, and with open suction holes can work without stopping for up to seven hours. Sometimes in the kit there is an overheating sensor (thermal relay).

By the way, pay attention to the material from which the fixing cable is made. It is better that he was a nylon. This cable, unlike steel, does not wipe the lugs of the housing and provides additional protection when the current cable is damaged.

2 Repair of vibration pump

The ability to independently diagnose and repair is always useful. Therefore, whatever the cause of the malfunction of the pressure equipment (breakage of the thrust, short circuit or valve break), the pump must first be disassembled to inspect the internal problems.

Unscrew the bolts with which the body is fastened, inspect the corrosion, tightly saddled bolts can be cut off by the Bulgarian. Beat the compound. Inspect the coil windings and clean all movable parts. The power coil, if in need of replacement, can simply be knocked out of the case. Tester check the power cable, if everything is OK, you can collect it back.

Make sure that the water flow holes with the rubber gasket are clearly aligned. Bolts of fastenings tighten so that the pump worked in a habitual noise and vibrational range.

2.1 Causes of malfunctions and their solutions

If the usual inspection and preventive maintenance could not be limited and the reason for carbonization of the cable or overheating of the housing, lack of pressure or increased vibration, then repair your vibro pump You can use methods that are universal for any model of aggregates.

As practice shows, a replaced hose or cable can easily reduce the pressure or the level of overheating. And reduce the vibration will help replace or repair the magnet. Now, more about each of the variants of the problems.

2.2 Humming and weak head (or lack thereof)

The buzzing of the pump with a slight pressure or lack of water can be caused by three possible causes:

loose nuts of the rod attached to the shock absorber;
a worn valve was ruptured;
the stock stopped.

Here, the only problem is not solved if the stock breaks or is deformed. There is nothing to replace it with. If the problem is in the nuts - you have to tighten them to the stop and fix the upper one well. It is with this nut that all the shredding goes. If you had to cut off the bolts, replace them with hexagonal tightening screws. About the "replace the valve", I hope, they themselves understand - just change it.

2.3 Charring of the cable

The cable is annealed or the plugs are knocked out. There are two options: either the anchor winding burned, or the tester will show the fault of the cable itself. We change what is needed and must earn.

If the cable can not be changed, because the drive is filled with a compound, then the wire will have to be twisted.

2.4. Increased vibration and / or overheating

Heavy vibration or overheating is due to the detachment of the magnetic part of the unit. The source of the problem is that the pump worked without water. How to reduce vibration?

You need to get a magnet, cut a grid of grooves with a depth of 2 millimeters and make the same grooves inside the case. We put the magnet on the glue and sealant, let it dry and only after that we begin the assembly.

2.5 Weak head

If the pump is operating normally, but the head could be clearly larger, then the cause is low pressure. To increase the pressure, (if the cause in the vibrator is a gap too small), you can use the washers attached to it (up to 11 pieces, depending on the model of the device).

2.6 Overview and repair of the vibrating pump (video)

How to make repairs vibrating pump with their own hands, and which parts of the structure are most often susceptible to breakdown, let us consider in more detail. There can be two reasons for the failure of the vibrating pumps, this is the damage to the mechanical and electrical parts.

Basic parts of the structure

Repairing the mechanical part of the unit will not be a big deal, you can do the malfunction yourself. But with the electrical part there are some difficulties and some knowledge will be needed.
Consider the details of the vibrating pump, it consists of:

Aluminum housing.
Anchors.
Electromagnet.
Shock absorber.
Diaphragms.
Valve.
Stock.
Piston.

The principle of vibration construction:

Job vibrating unit is due to the oscillations of the piston and the armature. The oscillations are produced under the influence of an alternating magnetic field.
In this case, the piston performs an axial movement with an approximate frequency of 50 Hz.
When the armature is attracted to an electric magnet, the piston creates a discharge during movement, which is enough to open check valve. As a result of these actions, the working part of the pump is filled with water.

Note. When the anchor repels from the electric magnet, the piston begins to move, while the check valve closes. Thus, water is pushed into the pump pipe.

Basic work items

Let's consider the main elements that need to be monitored during the operational period.
Electrical part of the unit:

This part is a powerful electric magnet of the U-shape.
The magnetic wire is assembled from thin plates. A coil of an electric magnet is put on the wire.
The coil is wound copper wire, a diameter of 0.6-0.7 mm.
In the aluminum case, a core with coils is placed. Then it is poured with epoxy resin.

Note. The resin without hardener performs two functions at once: it reliably fixes in the housing an electric magnet with coils and removes heat from the coils on the body of the structure during operation.

Mechanical part:

The vibrating part is equipped with a shock absorber, an armature and a rod.
The steel rod is pressed into the anchor.
The rod is fitted with a shock absorber and attached using nuts (2 pcs.) M12.
Then follows the aluminum coupling on which the elastic rubber diaphragm is put on.
It serves as a separator between the electrical part and the plane under the pressure of the liquid.
Next, the piston is fastened to the piston with the M8 nut.

Note. To prevent damage to the piston, a steel spacer is installed in the inner hole. Under the piston on both sides set special washers.

There, where the vibrator is located (the upper part of the housing), a check valve is installed, which during the operation of the structure covers the opening of the suction part when the water pressure rises.

What are the faults of vibrating pumps

Before you produce a vibrating pump, you need to examine which faults most often encountered by users.
Consider the faults of structures like:

Bosna.
The scab.
Dzhereltse.
Neptune.
Brook.

What is wrong with the mechanical operation of the pump:

№	Malfunction	Causes	Decision
1.	The pump pumps very poorly or hums, but does not pump.	One of the reasons may be spontaneous unscrewing of the nut on the piston. Conclusion. Such a breakdown, as a consequence of the vibration of the structure.	The solution of the problem will be the nailing of the end of the rod. In this case, the nut is not so easy to unscrew.
2.	The pump overheats and hums a lot.	Such a malfunction can be caused by the operation of the pump without fluid for pumping.	From overheating, the electromagnet falls out. The gap between the armature and the electric magnet disappears. It is necessary to monitor the liquid level, otherwise - overhaul.
3.	Low water pressure, pump weakly pumps.	The cause may be a low voltage in the network (less than 200 W).	In case the voltage is normal, the pump must be disassembled and adjusted.
4.	The pump turns on and the automatic machines are knocked out and the plugs burn.	Most likely, the winding of the electromagnet burned.	Overhaul.

How is the vibration pump

A vibration pump, repairing it yourself, is not a simple matter, especially when it comes to the most difficult part of it - an electric magnet. Therefore, if there is no certainty, it is better to seek specialized care.
So:

Imagine that at some point you turned on the pump, and the protection in the shield went off.
Cause: an obvious fault in the pump itself or in the power cable.
Here it is necessary to check the pump for the resistance of the winding of an electric magnet.

Note. For a normal running pump, it must be at least 4 ohms.

It takes a multimeter, we measure the resistance of the winding. If the instrument shows 0.5 ohms, then this is an obvious short circuit.
In order to check the cable, it is necessary to bite off the cable from the pump, leaving a piece about 15 cm. The device is connected and the cable is checked for a short between the conductors.
If a short is detected, another cable is taken, connected to the pump and insulated with electrical tape.
At least 3 layers are applied. Before connecting the cable, it is necessary to check the resistance of the electric magnet.

If the cable is in good order, and the resistance is small, then the cause is in the burnt coil.

Repair of electromagnet

Repairing the electromagnet is rewinding the coils.
To rewind you will need the following tools:

Winding enamelled wire with a diameter of 0, 65 mm.
A tube made of PVC with a diameter of 4 mm.
Soldering iron.
Epoxy resin.
A hammer.
Screwdriver.
Gauntlets.
Mask.
Conventional winding machine.
Electrical tiles for 1.5 kW.
Churka made of wood.

Carrying out of repair works:

First, you need to remove the magnet from the pump casing.
To do this, turn on the electric tile, on which the pump casing is placed and heated.
You need to heat to a temperature of 150 degrees, you should feel a small smoke from the epoxy.

Council. The smell is very toxic, so you need to work in a mask or gas mask.

After that, in thick mittens, take the heated pump casing and knock on the wooden deck so that the electric magnet looks down.
If it does not move, then you need to leave it to warm for a few minutes.
Then try again: if the magnet has moved, it must be pulled out of the housing.
Next, clean the interior of the housing from epoxy resin with a flat screwdriver.
Then, using a hammer, the iron of the electromagnet is knocked out of the coils.
In order to iron out better, it must be heated on the tile to the desired temperature.
Next, burnt windings are unwound and the carcass is carefully cleaned of resin residues.
The coil is attached to the winding machine and the coil is wound. Further, the fork is held in the plug until the entire frame is filled.
In total, 8 layers are produced, the last layer should be wound halfway and secured with an electrical tape.
Similarly, the second coil is wound. Then, the coil frames are put on the core, and the ends of the windings are cleaned from the outside.
Surplus bites off, and the remaining soldered outlet puts on a PVC pipe.
The cable is threaded through the rubber seal into the housing where an electric magnet was poured.
The end of the cable is cut, and the ends are peeled to 50 mm.
The ends of the cable are twisted with the beginning of the windings and dissolve. The ends are put on PVC tubes.
Then, carefully, the core with the coils is lowered into the housing, while simultaneously pulling the excess cable out.

Council. To electromagnet safely sit in place, you need to knock it with a hammer on the core through a wooden bar.

Then the pump housing is clamped in a vise and leveled.
In the old jar, an epoxy resin with a curing agent and a plasticizer is kneaded.
Everything is mixed and poured into the coils of the electromagnet. After 15 minutes, all voids are filled with epoxy resin.

Epoxy resin hardens during the day. Then we remove the remains and collect the pump. For full information, we recommend that you watch the training video.

Most gardeners and gardeners use a water pump to provide water supply, as well as watering a greenhouse, bed, garden or lawn. Often, various models of submersible vibrating pumps are bought and in the absolute priority - "Kid". They are small-sized, are inexpensive, but have good power, allowing you to supply water for a long distance.

But these budget electric appliances have a significant drawback - they often fail for various reasons. At some breakages it is quite real to carry out repair of the pump the kid the hands. About what kind of failures are met most often and how to repair - our article.

Device for electrical appliances

To carry out a high-quality repair of the vibrating pump by one's own hands is possible only on condition of understanding of its device, and also the principle of operation. Not superfluous will be information about the configuration of the electric pump. After all, there are situations when the repair work was carried out correctly, but due to the fact that there was no competent adjustment, the unit can not perform its function.

The design consists of such basic elements:

metal housing;
electromagnet;
vibrator.

The device of the vibrating pump baby has a standard form for such technical mechanisms.

Design options

The water pump can be with an upper or lower water intake. If the upper pump has a higher intake of fluid, the suction valve is on top and the electric actuator is located at the bottom. This arrangement has several advantages:

The "electrical part" of the device is under water, which promotes constant cooling;
silt sediments are not sucked from the bottom.

In models with a lower water intake, the opposite arrangement of the mechanism nodes. Such units require constant monitoring of the water level. Work "dry" leads to overheating and, as a result, to breakdown. The technical parameters of the models are different.

Important mounting moments

In order to know how to repair the pump the kid needs to internalize all the nuances of mounting the mechanism. It is important to know not only the device of this device, but also all its "problem areas".

The electromagnet is fixed firmly in the housing with a compound. It not only fixes the core with the coils, but also acts as an insulator and transfers heat from the coils to the body. Compound is a special mixture that is prepared from epoxy resin, sand, and plasticizer. Carrying out repairs by one's own hands, the damaged parts of the compound are sealed with a sealant.

Vulnerable elements of the submersible electric pump are rubber parts. Despite the fact that they are made of high quality material, wear out during operation, therefore, require replacement. If the pump fails, the repair should begin with the inspection of the rubber parts.

Please note that there must be a gap of 0.6-0.8 mm between the body and the valve. It allows water to flow when there is no pressure.

First of all, you should inspect the rubber valve that closes the inlet. It is necessary to change it more often. After that, we inspect the rubber diaphragm separating the hydraulic chamber from the electric drive. Do not ignore the rubber piston placed on the rod.

How does it work

The principle of operation of the vibrating pump is that the variable current is converted into electromagnetic oscillations of the armature, which are transmitted to the piston placed on the same rod. Vibrational movements of the piston pump pressure, allowing the pump to pump water.

How does the electric pump work? After the device is turned on, the magnet draws the anchor. At this moment, the poles are remagnetized. Shock absorber, performs its function - return the anchor to the place. This process occurs over half the period of the current wave. Accordingly, for a full period the anchor will be attracted twice. Given that the frequency of the power grid is 50 Hz, there will be 100 oscillations of the armature per second.

With a similar frequency, the rubber piston vibrates. After all, it is placed on the rod, pressed into the anchor. The pump device contributes to the formation of a hydraulic chamber, which on one side is limited by the valve near the inlet, and on the other - the piston.

Water is an elastic two-component medium consisting of air that has dissolved and that which has not dissolved. Through the inlet the valve flows liquid into the inside of the electric pump. Vibration of the piston leads to the fact that the water behaves like a spring. At each expansion, a part of the water is pushed out of the chamber of the device.

What breakdowns happen most often

Having mastered the device of the vibrating pump the kid, it is possible to start repairing it. We bring to your attention examples how to repair the pump baby in the home.

How to assemble and disassemble the unit

The main and most important thing before dismantling is to mark the body of the details relative to each other. It is best to make a notch with a sharp screwdriver. But you can cope with the marker.
Next, remove the screws that connect the pump. First, in turn, turn off the screws for a few turns, and then completely twist. In order to be convenient, the device can be fixed in a vice.
The piston disk is set parallel with the saddle along the axes, checking the distance from the edge to the gasket with a centimeter or a compass. Sometimes the parallel is broken. The cause may be a screwdriver on the screw (you can wind a strip of foil under it) or bend the rod (just twist the gasket to align it).
It is important not to confuse the position of the rubber gasket in the assembly, where the holes coincide.
After correcting the faults or failure, you need to check the operation of the pump. To do this, he is lowered into a bucket full of water. Even if there is no hose, if the equipment is in good condition, a jet of water will beat from the nozzle.

VIDEO: Repair of the pump "Malysh"

The electromagnet from the case has peeled off

This type of failure is the leader in calls to service centers. The reason is the uneven expansion of the metal case when heated during operation. As a result of this unevenness, epoxy compound begins to peel off from the hull in some places. It is a polymer with extremely low shrinkage, high adhesion and good dielectric performance, but it does not have the same ductility as metal, so it peels off.

Repairs of the pump baby with their own hands will have the following sequence:

It is necessary to disassemble the electric pump - to separate the electrical part. We are convinced that there are places where there is no fastening. To do this, tap the machine with a hammer. From the sound, you can immediately hear if there are gaps.
If the electromagnet has completely peeled off, then remove it.
We make a small Bulgarian on it, and also inside the body chaotic longitudinal and transverse grooves, not deeper than 2 mm.
We smear the compound with which the magnet is filled with a sealant. Press it into place using the press.

The best grip provides a sealant for glass surfaces.

VIDEO: Hex Pump or how the pressure changes

When the sealant is solidified, it is possible to "assemble" the mechanism.

Experts advise to use a sealant, which is pasted car windows. It differs from others by its special strength.

The size of the gap does not meet the standards

The design provides for a gap of 4-5 millimeters, between the coils mounted on the electromagnet and the piston. When the distance is greater, the device overheats. At a smaller value, the coils wear out. The gap is calculated as the difference between the value of the recess of the coils in the compound and the size of the protrusion of the piston above the level of the rubberized shock absorber. We measure it with a sternel. If necessary, we carry out the repair of the vibrating pump with our own hands according to the algorithm:

We disassemble the piston block. To do this, unscrew the nut to remove all the parts placed before the bush: the piston; washers used to adjust the gap; a ring resistant, a rubber diaphragm and a coupling.
The bushing must be tightly clamped to the shock absorber, which looks like a rubber spring.
We put on the puck (maybe two).
We fasten a nut, and another nut we uninstall.
We collect everything in the reverse order.

On this repair of the pump the kid with his own hands is not finished. You need to measure the gap. If it does not meet the requirements, then the washers are adjusted. The thickness of one washer is 0.5 mm. When adding or removing washers, you can change the size of the gap.

VIDEO: How to properly clean the self-priming device

Works, but water does not pump

There may be several reasons, and not all are harmless. If you are faced with such a nuisance, here's what you need to do:

In the adjusting screw there is a counter nut that affects the operation of the pump. It needs to be weakened a bit. But do not untwist to the end. Check how the pump works during the unscrewing process.
The rocking cuff is broken. This unit is made of rubber and therefore has the property of sometimes breaking. It is possible to detect a malfunction only after disassembly. Visually, these are 4-centimeter saucers in diameter, joined by doni. Repair the cuff does not make sense, it's easier to buy and replace. It costs 150 rubles., For the replacement will go away from the force of 20 minutes.
The swinging rod broke. At once it is necessary to understand that even a super-master can not repair a broken stock, this detail is simply changed. You can replace it yourself, but the question is in the presence of the donor. If the repair of the pump Kid trust the service center, there probably will be another same, but faulty pump, which will act as a rod donor.

Quick repair instructions

Any repairs begin with the dismantling of the unit (see 1) to understand exactly what went wrong. To do this, loosen and unwind the screws, and then separate the pump into 2 parts.

If any screws are rusty and do not twist. They will have to be cut off, and the bolts themselves should be replaced with six-sided ones.

It is essential to clean the device after all disassembly from all kinds of contaminants - oil, silt, sand and other layers. Dry dry with a rag dry.
If the winding is burnt, which will be noticeable after the disassembly, you need to change it or rewind. It's easier to buy, but more expensive. The coil can be removed entirely with the knot, since it is covered with a sealant from the outside.
Even if the compound has not peeled off, it is only a matter of time. You can take a step forward and with another disassembly and repair of the pump Baby can be hammered off carefully all the compound, rewind the winding, pour the sealant (glue to the glass surfaces) and re-immerse in the body.
The tester conducts the presence of contact in the electrical circuit. If there is a short or a broken wire, make it a replacement.
It is obligatory after a reverse assembly check in the bucket how the device works. There should be no excessive vibration, the noise should not be ringing if during the process you hear that the sound began to change, it is necessary to screw the screws.

To repair the trickle pump yourself, you can, following the above instructions. Both electric pumps have the same type of device, moreover, the Aquarius pump has exactly the same design. As you can see, some breakdowns, armed with knowledge, can be eliminated on their own. Good luck!

VIDEO: Good and bad about pumps

Owners of private homes and dacha owners are in great demand submersible pumps, which are based on vibratory principle work. One of the most common is the pump "Kid". Such popularity is caused by a low price and, at the same time, excellent characteristics and water pumping at fairly large distances. In this article, you will learn a lot about how to properly repair a submersible vibrating device "Baby" with your own hands. The article describes in detail the analysis of the submersible pumping device step by step, as well as the assembly. Description of some requirements and consideration of the most frequent failures of pumping equipment "Malysh". Also, we list the models of this device, suitable for different conditions of use. Schemes, photos and videos will help you understand the repair of submersible vibrating pumping devices "Malysh" in more detail.

But, like any complex equipment, these pumps require periodic maintenance. Owners of pumps "Malysh" can easily repair themselves. With minimal technical abilities, most repair operations can be done at home.

How is the household submersible pump "Malysh"

Vibration pumps operating in submerged state, as a rule, operate on inertial principle. That is, the nodes of the device impart vibrational movements to the mass of the fluid, which are transmitted over considerable distances.

To give this vibrating fluid motion, there is a vibrator in the pump that operates from electromagnetic equipment. All pump units are in the housing.

Electromagnetic equipment "Baby" is a core in the form of a letter "P" and coils with a copper winding. Two coils and a core are in the housing, where they are fixed with plastic resin (compound). This resin, in addition to fixing the device, isolates the coils and removes excess heat from them. The composition of the compound, in addition to resin, includes sand with a quartz composition, which provides good thermal conductivity.

The vibrator is a form of an armature and is moved by the action of electromagnetic forces with a rod attached to it. In order for the vibrator to return to its original position, a spring of vulcanized rubber is attached to it.

All the main units of the submersible vibrating pumping device "Malysh" are placed in a metal casing. At the top of the pump is a valve made of rubber. It is the rubber valve that is the pump assembly, most often failing.

How the pump works

To understand how to repair and service submersible vibrating pumping devices yourself, you need to understand the principle of their operation.

When connecting equipment to the electrical network, the armature approaches the magnet under the influence of an electromagnetic field. After a while, the electromagnetic force of attraction disappears and the spring of the shock absorber, made of very elastic rubber, returns the anchor to its place. Such fluctuations occur 50 times per second. Placed along with the anchor piston, with the same frequency changes its position.

Between the extreme positions of the piston element, a "hydraulic chamber" is formed, into which a two-component mixture (water and dissolved air) enters. This mixture, in contrast to pure liquid, has a greater elasticity. New portions of the mixture enter the inlet valve and are pushed out through the discharge tube, creating pressure inside the pipe or hose, thereby causing water to move.

Submersible pumps "Malysh"

These devices are available in several models.

"Kid" and "Kid-K" - characterized by suction tubes at the bottom. Model "K" has an additional thermostat. Due to the fact that the tubes are located at the bottom of the pump, the device is sensitive to contaminated water, and "dry running" can disable it. Therefore an additional thermostat will help to avoid troubles.
"Malysh-M" - equipped with suction tubes at the top. If the pool is shallow, it can be placed in a horizontal position.
"Malysh-Z" - has a compact cross-section, which allows you to put this device in pipes with a diameter of 8 centimeters.

To accommodate vibrating pumping devices in wells and boreholes, they are equipped with a cable made of capron. Synthetic cable allows avoiding the electric shock caused by the leakage of the metal shell of the pump device.

When connecting the pump, the minimum value of the internal section of the hose or pipe must not be less than 19 millimeters. If these requirements are not met, the Vibration Pump Unit may overheat and fail.

How to disassemble and assemble the pump.
Before starting the disassembly, it is worth making a notch on the body, noting the mutual position of the pump parts.
The screws connecting the pump body parts are removed in series. The screws in turn are loosened by a few turns. To facilitate dismantling, the ledges under the fixing screws on the housing part can be temporarily squeezed. To simplify the subsequent maintenance work with the pump, it is possible to change the screws to similar ones (for an internal hex wrench) or bolts with slots on the heads.
Install the piston plate strictly parallel to its saddle, observing the alignment of these assemblies. Parallelism is monitored by the constant measurement of the caliper of the distance from the edge of the piston to the gasket. The lack of parallelism causes the nut on the nut. To adjust the correct position of the groover, a piece of thin foil can be wound under it. Parallelism can be caused by the inclination of the rod, this can be corrected by turning the gasket.
When assembling the pump "Kid", pay attention to whether the holes on the rubber gasket are aligned, which are located in the center and at the top of the housing of the device. Their mutual position can be easily confused, since these nodes of the device are symmetrical.
Check the correct operation of the pump, lowering it into a bucket of water. In the absence of a hose, a jet of up to 30 cm in height is fed from the discharge tube.
We fill in a new compound.

The detachment of the epoxy resin resin from the body of the device is one of the most frequent failures of the vibratory pumping device of the "Baby" model. This is due to the uneven expansion of the aluminum housing and the plastic compound (plastic resin) when heated.

Check the correct position of the pump components.
Make sure that the clearance between the piston and the electromagnetic coils is 5 millimeters.
Check the condition of the valve. It must be blown unobstructed in both directions and should not have visible damage. To secure the fixation, it is possible to secure its additional nut.
Ensure that there is no mechanical damage to the piston assembly. Despite its strong fixation, the piston must leave some flexibility. To ensure a firm attachment to the hub assembly, rivet the nut on the end. For reliability, the nut can be attached to an additional one.
You can disassemble the bushing block. Remove the piston assembly, remove the washer, which adjusts the distance between the hub and the membrane (there can be several washers). Then remove the stop ring and remove the diaphragm from the solid rubber on the side of the piston assembly. You will see an aluminum cylinder. Press the bush assembly against the spring and remove the cylinder. When reassembled, you can adjust the gap and make it equal to 5 millimeters. The gap is changed by adding or removing the washers from both sides.
We detach the hose from the device and hang it in a bucket full of water. Turn on the power supply and check the voltage in the network - it should be between 220 and 240 volts.
Turn off the devices and drain the water from it.
We check the patency of the valve (we blow it with the mouth). The air should flow into the valve freely, but when the head rises, the hole must be locked, and you should feel that the piston assembly has moved. When blowing in the opposite direction, the air flow must pass without visible obstructions.
Scheme of adjustment of the pumping device "Kid".

If the pump is not blown in the forward direction, then this defect can be corrected by lowering the operating voltage of the equipment to 170-200 volts. Lower the voltage can be with a transformer.

"Kid" works, but does not pump water.
Loosening the lock nut in the adjusting screw located at the water intake point. Twist the screw, changing the efficiency of the pump.
Damage to the cuff rubber cuff. You can see this fault only after disassembling the device. Outwardly, the node looks like a pair of saucers, arranged by the Donets to each other. Diameter about 4 centimeters. There are cuffs-pennies, which can be bought at any specialized store.
Breakage of the swinging rod. This is a pretty serious malfunction. It is pressed into the next node, and it is extremely difficult to change it without special equipment. Repair this breakdown is possible if there is a second faulty donor pump.

To learn more about the procedure for disassembling, repairing and adjusting the immersion vibrating devices "Kid", you can watch a training video tutorial.

Video Features of using a vibrating pump

Video Finalization of the vibrating pump "Kid"

Video How to increase the pressure of the vibrating pump

Conclusion

Following all of the above, to fix the submersible vibrating pumping device "Baby" and all its modifications - will be easier than simple, except when you need a pumping device - the donor. But if you follow all the requirements and requirements specified in the data sheet and the instructions of the device, the number of breakdowns of your submersible vibrating pumping equipment will be reduced to zero. Do not forget about regular maintenance pumping device, it is necessary to avoid serious damage to the submersible pump. Do not use the pump without immersion in water, this will lead to a rapid overheating and breakage of the pump, which can not be repaired. Try to avoid hitting the pump casing against the walls of the well, this will lead to its breakdown, and you will have to disassemble the device and detect malfunctions, in the worst case, you will have to look for a donor device.