Meat grinder breeze DIY repair

In detail: do-it-yourself breeze meat grinder from a real master for the site my.housecope.com.

The electric Zelmer meat grinder is, of course, more convenient in our household use in comparison with a simple mechanical meat grinder.

The electrical circuit of the meat grinder can be attributed to simpler circuits.

Zelmer electric meat grinder

As with every household appliance, the meat grinder has its own causes of malfunctions:

untimely care;
power surge;
mechanical damage

and other reasons. What can be attributed to untimely care? - Poor sharpening of the cutting edge of the knives is admissible. In this example, a load is created both on the electric motor of the meat grinder and on the electric circuit of the meat grinder, at which a malfunction of both the electric motor itself and the capacitor in the electric circuit of the meat grinder can occur.

You cannot name all the reasons at once. Let's say you bought a meat grinder in the winter, brought it home and plugged it in right away. In a warm room, condensation has formed on the stator windings, - you connected it and the electric motor of the meat grinder immediately burned out. It is also necessary to pay attention to the correct use of household appliances.

The mechanical part of the electric meat grinder is shown in Fig. 1.

In general, no clarifications on this part are required. Timely it is necessary to monitor the cutting part of the knife, as well as monitor the grate so that it does not become clogged with tendons from the meat.

The photo shows the electric motor of the Zelmer meat grinder, - with a gearbox.

In this unit, the cause of a malfunction can be both a malfunction of the electric motor itself and wear of the gear transmission of gears.

Video (click to play).

Consider the electrical diagram of the Zelmer meat grinder without additional elements in Fig. 2, an explanation in this topic will be given to the main causes of malfunctions of the electric meat grinder, such as:

The two stator windings of the electric motor are offset from each other by ninety degrees. The current in winding B differs in phase from the current in winding A, due to this difference, the initial start of the rotor is ensured.

The difference in the currents of the two stator windings is created by a capacitor, namely, the current value for winding B will be greater than that for winding A. That is, the capacitor in the electrical circuit here serves to ensure the initial acceleration of the rotor.

The electric motor of the meat grinder is asynchronous, the rotor speed of which lags behind the rotation speed of the stator magnetic field.

Consider some of the causes of a malfunctioning electric meat grinder. For example, your diagnostics established a capacitor malfunction. How to choose the right capacitor?

The tolerance in the deviations of the capacitance of the capacitor is not important, since the deviations in the capacitors are insignificant. Important characteristics are the capacitance of the capacitor itself and the nominal voltage value of the capacitor.

The next reason for the malfunction is a burned out electric motor. With such a malfunction, it is easier to replace the electric motor itself, if the cost itself is more acceptable for purchase.

These parts are available from the radio store. If the capacitor you need is not on sale, the capacity of the capacitor you need can be selected from two separate capacitors, let's say two capacitors. In this example, to increase the total capacitance, two capacitors are connected in parallel.

Minor causes of malfunctions include:

break in the mains cable wire at the base of the plug;
break in the wire of the network cable along its length

A general diagnosis of all connections can be carried out - with a probe. Diagnostics of the electric motor is carried out by the Ohmmeter device or by the Multimeter device, previously set to measure the resistance of the stator windings of the electric motor.

The electric assistant today is very popular and in high demand among Russian buyers. Despite high-quality manufacturing and high reliability in operation, electrical appliances tend to break down over time. Many breakdowns can be repaired at home, so we will tell you in detail about the repair of an electric meat grinder, which you can easily do with your own hands.

It doesn't matter what kind of meat grinder you have - Kenwood, Zelmer or Moulinex, each of them has its own nuances, but the faults are pretty typical for all. Electric meat grinder repair specialists have compiled the following register of the main problems encountered in these products:

violation of various contacts of the electrical circuit;
deformation of the engine rotor;
breakage of the teeth of the gears of the reducer - arises from the increased load;
malfunctions of the electric motor, extreme wear of the brushes;
wear of the cutting tool due to the processing of too stringy meat, the ingress of small bones due to the user's oversight;
breakage of keys, safety devices;
damage to insulation, power cord;
replacing the motor or rewinding its windings.

Many failures of reliable technology are due to violations of operating conditions and only a few - a factory defect or a human factor during assembly.

If any malfunction occurs, it is necessary to immediately carry out diagnostics in order to find out the cause and localize the breakdown. Inspection of the mechanical part of the product is carried out visually, and the electrical circuits are checked with special devices. If a visual inspection of all parts of the mechanical part did not give a positive result, then you need to dismantle the product and inspect the gearbox, electric motor. May have happened clogged lubricant rubbing parts, the bearings do not work correctly, they need to be replaced.

Timely diagnostics allows you to identify and eliminate malfunctions at an early stage of their development, which significantly extends the life of the entire product.

Let's consider in detail the malfunctions of the meat grinder and methods of their correction.

The engine does not reach the set speed - the reason may be broken switch or the engine itself. Replace worn mechanisms or an electric motor.
Interruptions observed in the drive - extreme wear of graphite brushes, you need to install new ones.

Extraneous sounds, burning smell during product operation - defective engine... To restore it, you need diagnostics, repair or complete replacement. However, the cost of replacing the engine is quite high - it would be more cost effective to purchase a new grinder and solve the problem.

The reason for the appearance of sounds unusual for the normal operation of the meat grinder may be bearingsthat wear out during operation. To confirm the diagnosis, it is necessary to disassemble the main body of the product, get to the place of their installation and check the rotation, if necessary, replace it.

Reducing the speed of the electric motor - overload, the food is fed too fast, the meat grinder does not have time to grind them. The Kenwood mg model is particularly susceptible to this malfunction. Reduce the feed dosage and everything is normalized.

No shaft rotation - the transmission mechanism of the reducer is seized... Perhaps one of the gears or its teeth is broken and needs to be replaced.

The product auger has stopped. If at the same time the engine is operating in the same mode, then turn off the meat grinder and dismantle its mechanical part in order to find out the reason.

In the latter case, there are several reasons for the occurrence of such an unusual failure: incorrect assembly of the gearbox, cranking of the motor shaft, breakage of the drive gear teeth, and very rarely licking of the connection by the auger shaft (erasure of the hexagon).

On a note! The non-conformity of the metal of the part leads to its breakage during the ultimate load.

If the hexagonal receiver, where the auger shaft is inserted, is made by mistake of a softer metal, then during operation it quickly expands, or its edges wear off, the tight contact will be broken... The same can happen with the auger tip. It is difficult to repair a meat grinder with such problems with your own hands; the help of professional repairmen of similar equipment is required.

In order for the electric meat grinder to delight you with flawless work for a long time, you must follow simple recommendations for proper operation:

before starting work, always carefully check if the assembly is correct and reliable fixation of all parts;
pay special attention to the contact between the cutting tool and the grate - they must fit snugly, the fixing nut must be tightened with effort;
cut the product into piecesnot exceeding the diameter of the loading cylinder, in order to avoid them getting stuck;

disassemble, clean and rinse all parts and the internal volume of the meat grinder after each use;

keep all parts of the mechanical part of the product only disassembled.

Special attention! Before processing meat and fish, it is necessary to free them from bones, remove large veins, make sure that small bones that can damage the knives do not get inside the product.

Do not turn on the meat grinder without loading, do not try to push through the stuck pieces of food with your hands - there is a special pusher for this, never overload it. If you thoroughly fulfill all the requirements, then the product will work flawlessly for the entire period assigned to it by the manufacturer, and she will not need repairs with her own hands.

How to disassemble a meat grinder? A similar question arises only when problems arise in its functioning. Sometimes it is more convenient and faster to try to fix the malfunction on your own than to contact a service center.
The Vitek VT-1677 meat grinder is often found on sale and according to customer reviews, having a low price, it is of good quality. But nothing lasts forever, and any technique can break. Therefore, it will not be superfluous to know how to disassemble the meat grinder with your own hands. Moreover, this process is not particularly difficult. And after simple manipulations, the reason for the improper functioning of kitchen appliances can be found and eliminated on their own.

Before proceeding to the description of the parsing of the meat grinder, you should tell about the blocking from overheating. With long work or heavy load, it may work. You just hear a click, and the kitchen appliances turn off. And as a result, the meat grinder does not turn on with further attempts to start it. But as soon as you press this button from the bottom, everything works again. Sometimes this problem even leads to a service center. And how surprised people are when the master just pressing the button gives the meat grinder back!

How to disassemble a meat grinder VITEK VT-1677
Often, disassembling a meat grinder is associated with finding a starting point for this event. You can turn the device in your hands for a long time, but you won't be able to understand it right away. So let's start with this.
The first thing to do is turn the grinder upside down.

Below you can see four rubber feet inserted into a plastic case. We remove them by poking them with a screwdriver. The screws that secure the case will appear under the two removed feet. Unscrew them with a Phillips screwdriver.

In the center on different sides, there are also two deeply recessed screws. They also need to be unscrewed, otherwise the disassembly of the meat grinder will not be crowned with success.But the problem is that the length of the screwdriver must be at least 30 cm. Why they did this is not clear! It can be seen to create a problem for home craftsmen. Regular Phillips screws. In this case, a screwdriver-sharpened electrode is used.

So, when these four screws are unscrewed, turn the meat grinder upside down. We take a screwdriver, and, as shown in the photo, carefully pick out the joint of the housing element.

Pry a little, and the silver front should come out of the latches. Now we take this part from below with our left hand and try to lift it up, as it were. At this time, we press on the back with the right hand from above.

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We will ring the section, rotate the shaft, measuring the resistance of each step. The values must be equal. The process stops - the turnover is completed. In collector motors, the stator is often made on a single coil. It is connected to the rotor by a magnetic circuit, represented by a core with wire turns. Do-it-yourself meat grinder repair will be a freebie. Even if the wire is burnt in the center, always buy a roll of a new one with lacquered insulation in the store, wind the required volume with your own hands.

They use a device formed by two pairs of racks mounted vis-a-vis on a long board. Each has a rotating axle. One holds a new spool, the other holds a coil of wire.Here you wind up the old choke to localize the break, how many turns to wind, what is the length of the wire. Most people use a handle, like an old barrel organ, it is allowed to use a screwdriver drive, a drill. Determine the speed so that it is convenient to lay the turns tightly. With the shuttle, the other hand guides the wire from side to side, from edge to edge of the spool. In conclusion, we will ring the coil and measure the electrical resistance.

Repair of induction motors is determined by the design. The stator is repairable. The configuration of the rotor windings is complex (if any). However, if there is a lot of strength, time, desire to practice, it is impossible to stop the master. Let the day be spent, the engine again works as part of the meat grinder.

Winding direction.

Number of turns.

Location of terminals.

Three whales will help to correctly position the wire, it is allowed to combine it with neighboring coils, enlisting the help of soldering, applying insulation at the place of electrical connection. The main reasons for the breakdown of meat grinders are the consequences of improper operation. More often, there are two gross violations on the part of users of household appliances:

Exceeding the permissible time of continuous work, underestimating the duration of rest. The parameters are not advertised by manufacturers, not all meat grinders contain protection against overheating. Users are deprived of information about the features. Housewives are losing blenders. The motor breaks easily.

The second oversight is getting hard bones under the auger. Repair of the Zelmer meat grinder consists in replacing the protective sleeve. Sometimes you have to buy a set of spare parts.

Capacitors burn, swell (electrolytic on filters). Call, conduct a visual check: one side sticks out. The butt is pressed through with a cruciform recess. Bends outward. Burnt capacitor - consider a favorable outcome. Happy repair to everyone!A meat grinder is simply an irreplaceable device for grinding different types of meat. If earlier most housewives used manual machines, now more and more users prefer electrical devices. This is not surprising, because the electric meat grinder grinds meat of any quality in a matter of minutes, saving the hostess's time and effort.Unfortunately, all electrical appliances tend to break down, and repairing them is somewhat more difficult than manual ones. This article will tell you how to repair a meat grinder at home, and what you can do with your own hands.Manual meat grinders are made entirely of mechanical parts. When disassembling, it is always easy to see the breakdown and replace the damaged part with a new one. Moreover, all the components are easy to find on sale.There is nothing special to break in manual-type meat grinders. Most often, they have dull knives that can be easily sharpened with a fine grinding wheel. Such a circle is put on the axle of the meat grinder instead of a mesh for the output of products and rotary actions are performed with a handle, as when grinding meat.Occasionally, a strong squeak is possible while the device is operating. Then you should disassemble the mechanism, grease the place of rotation of the handle so that the grease does not get to the meat container.All parts of hand-held devices are made of metal and cannot break if sinewy pieces or small bones hit, as a person will definitely feel tension at hand and clean the mechanism. The exception is modern manual meat grinders, made of fragile metal.All electrical meat grinders, regardless of manufacturer, consist of:

engine;

gearbox - consists of several bearings and gears for transferring the power of the motor to the rotational movements of the cutting mechanisms;

knife systems (auger);

control unit;

power cord.

The main reasons for the failure of all brands of electric meat grinders is their misuse. Only a small percentage depends on poor build quality.The quality of the parts themselves depends on the reliability of the manufacturer. It is not worth saving on it, since repairs can be much more expensive, and it is not so easy to find parts on sale.The most common malfunctions of meat grinders:

the device does not turn on at all;

the meat grinder turns on, but the disc does not grind the product;

the drive works, but does not gain the required number of revolutions;

you hear fumes or smoke during operation;

increased extraneous noise or knocking, which were not previously noticed.

Not always, with the slightest breakdowns, you should take the device to a service center, where it can successfully lie for many weeks, and you will have to pay decently for repairs.If the meat grinder does not turn on at all, the cause of the breakdown may be in the absence of contact or a malfunction of the control panel.Disassemble the device by unscrewing all necessary screws. Sometimes the plastic parts of the case snap together, then you should find all the grooves and snap them VERY CAREFULLY. Otherwise, the case may be damaged, then it will not be possible to fold it back. An example of the case disassembly can be found in the pictures of the "SCARLETT" model disassembly.SCARLETT meat grinder disassembly diagram: unscrew the metal panelSCARLETT Meat Grinder Disassembly Diagram: Remove the Mounting ScrewsSCARLETT meat grinder disassembly diagram: get the gearboxCheck all the contacts, the connection of the power cord to the device, maybe something needs to be twisted or soldered.

If the meat grinder turns on, but the auger does not grind the product, the reason may be a faulty gearbox. Bearings could have crumbled or gears could be worn out from a heavy load or hit by bones.In this case, disassemble the relay, check all parts for defects. Whether the gears scroll easily, are all the teeth present, are there any extra backlash when moving. Switch on the disassembled device without loading the auger.Do this carefully so that all parts do not fly to the sides and something does not interfere with the operation of the engine!Do not forget to photograph or memorize the location of the parts, so that later you do not puzzle over what to put where.Relay breakdowns are the most common reason for a meat grinder to fail.If the cause turned out to be defects in the gears (which is very likely, since they are made of plastic), the damaged parts should be replaced with new ones. It is not so easy to find new gears on sale, they are not sold separately for most models. You may have to contact local services to buy the necessary used part from another device or try spare parts from other models.In some rare cases, the cause of the auger turning interruptions may be the wear of the socket for its fastening or the misalignment of the shaft. This can occur from a constant increased load on the device or improper manufacture of a socket from a metal that is too soft. Loosening of the auger and licking of rotary mechanisms is a very big problem. To eliminate it, you will need the help of specialists.If the grinder is working, but not picking up the required speed, most likely an overload has occurred. This problem is most common in Kenwood mg devices.The device should be disconnected from the power supply, disassembled, cleaned and cut the meat before serving into the meat grinder in smaller portions.The main reason for extraneous noise, knocking in the operation of devices is the ingress of unnecessary objects inside: small bones or veins. They can get stuck and clog the joints between different parts of the appliance. Also, on insufficiently washed parts after previous use, food particles can dry out and cause blockages.In such cases, the device should be disassembled, cleaned, and all foreign objects removed.Sometimes the cause of extraneous noise and sharp sounds in the operation of the electric meat grinder can be crumbled bearings. They are easy to find on sale and replace.If you hear fumes or smoke from a working meat grinder, most likely the reason is engine breakdown.To repair the motor yourself, you will need some knowledge of electrical engineering, the direction of alternating current, adjusting the operation of a synchronous and asynchronous motor. If there is no such knowledge, it is better to immediately contact the service center. But, at the same time, the importance of repairs should be appreciated.The cost of repairing a motor is usually very high, so sometimes it is easier to buy a new device under warranty than to repair an old one.If you have certain knowledge, it should be borne in mind that both spirals of the electric motor winding are offset from one another by 90 degrees. In the second winding, the currents differ in phase. As a result of this difference, the rotor starts. The difference in currents is created by the capacitor. It is used to provide the initial acceleration of the rotor.Electric meat grinder motor and rotorThe motors for household electric grinders are asynchronous. In them, the rotor speed lags behind the stator magnetic field. A damaged capacitor can be the main cause of a grinder breakdown.If the capacitor is damaged, it should be replaced with a new one.When buying, pay attention to the capacity and voltage rating.If one of the windings is burned out, the motor must be rewound.In any case, before repairing a meat grinder at home, you should evaluate your strength and knowledge so as not to aggravate the breakdown.While scrolling the meat, a medium-sized bone accidentally fell into the meat grinder, after which it began to hum, but stopped rotating.It is easy and simple to disassemble the meat grinder, for this in the lower part of the case you need to unscrew four screws with an ordinary Phillips screwdriver, after which it is very easy to remove the casing. After that, we remove the large gear by picking up and removing the split fixing washer in front of these.When I examined the gear, I noticed that many of the plastic teeth were worn off. I had to change it, because I didn't want to pay 500 rubles for a new gear, I printed it on a 3D printer. Collected in reverse order, everything worksAfter they put crackers in the meat grinder, it began to crack and after a while stopped twisting, I had to carefully disassemble it in order to identify and eliminate the malfunction.Disassembly is quite simple, first we remove the front gray panel of the latch from the bottom, then we unscrew the five screws and separate the halves. Now you can clearly see the motor and the gearbox housingWe unscrew the four self-tapping screws on the gearbox housing and open it. We see broken teeth at the largest gear. It was not possible to find them on sale.Therefore, they were borrowed from the VITEK meat grinder, although it was necessary to sharpen the hexagon axis a little and the auger seat.The meat grinder seems to be working, but at the same time it makes extraneous noise and sometimes pops, there were no such sounds before.In order to repair the meat grinder, you will need to determine the source of the problem and disassemble the electric meat grinder.First of all, we will unscrew the screws, which are marked with red arrows in the figures below.Now we disconnect our disassembly object into two parts and see that it consists of two main units: a gearbox, in which plastic gears are installed, and an electric motor, thanks to which rotational movements are carried out.