In detail: do-it-yourself mulinex meat grinder auger repair from a real master for the site my.housecope.com.
Assembly, by the way, France. Plastic quality.
I didn’t even think about ringing the switch, winding, etc. - I immediately took out the brushes - in power tools, only they are most often the cause of failure. Yes, to remove the motor-reducer unit - you need to remove the front cover - it is held on the inside by 4 latches. The plastic is very high quality - you can not be afraid to break.
Fortunately, at home there were brushes from a Chinese drill, which fell apart in my hands on the third day, they turned out to be shorter than the original, but longer than what was left. Therefore, they successfully got into their workplace.
Reducer. Decided to sort it out too.
Prepare rags and risaclean to wash your hands. Inside, everything is in annoying graphite dust.
Everything was cleaned of old grease, without fanaticism only. Then he scored lithol in the gears.
The speed of rotation of the intermediate and driven gears is low, so there is almost no heating, but the helical drive gear and the motor shaft were more thoroughly lubricated.
We collect everything in the reverse order - we test and voila! And no need to run to the store for a new meat grinder!)
Instead of a pusher, a fork was used, and the fork slipped, fell into the spirals of the auger, the device emitted a death snore and fell silent? They threw hard meat with a high content of cartilage into the meat receiver, as a result, the cartilage got stuck in the turns of the rod, and the machine stopped turning?
Most likely one of the gears in the meat grinder has become unusable. In any electrical device there are parts that protect the engine. In meat grinders, this function is performed by bushings (they are also called safety clutches) or gears.
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Video (click to play). |
The Moulinex grinder does not have auger bushings, but has three gears. Most often, the one that stands immediately behind the gearbox breaks. We call it a small or DKA gear. You can choose a small, medium or large Mulinex gear in the catalog of the site gae4ka.by. And read the step-by-step instructions with photos and videos - just below.
We got a meat grinder Moulinex HV3 model A14. A small gear with an oblique tooth over a large diameter “flew” in it. If you need it, click on the zombie 
In each corner of the base of the machine - a rubber leg. We take out these legs from the recesses.
Screws are hidden under the plugs. We twist them.
Pull out the lid. Under it is a niche and 4 more screws. We're spinning again.
We turn the machine over and disconnect the case.
Before us is a gearbox, a motor and the “back” of the switch, from which the wires go. The gears are hidden in the gearbox. To get them, you need to unscrew 4 screws. We do.
We put the meat grinder so that its front part looks up. We disconnect the gearbox cover from the rest of its part. If not removed, pry off the cover with a screwdriver.
Before us is something like a deep bowl. Pins protrude from its bottom. Gear wheels are mounted on them - these are gears. One metal, large. The other two, located a little lower, are plastic and smaller in size. Remove all gears. We check the integrity of their teeth. You need to change the gear in which the teeth are worn, licked or twisted.
In our case, the small gear was damaged. We take its whole analogue and put it on a metal shaft.
We do the same with the rest of the gears.
We twist the gearbox cover, put on the case, seat the screws in their places.
We check if we did everything right: turn on the meat grinder in the outlet. Does the auger start to turn? So everything is OK.
We encourage ourselves with all sorts of graces-spices. We are great!
Not confident? Busy at work? Or just don't want to change the gear yourself? Visit the Moulinex meat grinder repair service center.
Repair time: up to 5 days (if the spare part is available in the office or in the warehouse).
Repair cost: no more than 10 rubles.
Discount: when replacing two gears - minus 10% for replacement parts.
For those who are in Minsk
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 fixed at home, so we will tell you in detail about repairing an electric meat grinder, which you can easily do yourself.
It doesn’t matter what kind of meat grinder you have - Kenwood, Zelmer or Mulineks, each of them has its own nuances, but the malfunctions are quite typical for everyone. Electric meat grinder repair specialists have compiled the following list of the main problems encountered in these products:
- violation of various contacts of the electrical circuit;
- deformation of the motor rotor;
- breakage of gear teeth of the gearbox - occurs due to increased load;
- malfunctions of the electric motor, extreme wear of brushes;
- wear of the cutting tool due to the processing of too sinewy meat, the ingress of small bones due to user oversight;
- breakage of keys, safety devices;
- damage to insulation, power cord;
- replacing the motor or rewinding its windings.
Many failures of reliable equipment are due to violations of operating conditions and only a few - factory marriage or the 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 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. Might have happened lubricant clogging rubbing parts, bearings do not work correctly, they need to be replaced.
Timely diagnostics allows you to identify and eliminate faults at an early stage of their development, which significantly extends the life of the entire product.
Let us consider in detail the malfunctions of the meat grinder and methods for their correction.
- The engine does not reach the set speed - the reason may be switch failure or the engine itself. Replace worn mechanisms or electric motor.
- Interruptions were noticed in the operation of the drive - the limit graphite brush wear, you need to install new ones.
In the latter option, there are several reasons for the occurrence of such an unusual failure: incorrect assembly of the gearbox, turning the motor shaft, breaking the teeth of the drive gear, and very rarely licking the connection with the screw shaft (erasing the hexagon).
On a note! The mismatch of the metal of the part leads to its breakage during the maximum load.
If the hexagonal receiver, where the screw shaft is inserted, is made by mistake of a softer metal, then during operation it will quickly expand, or its edges will wear off, tight contact will be broken. The same can happen with the end of the auger. It is difficult to repair a meat grinder with such problems with your own hands; you need the help of professional repairmen of similar equipment.
In order for the electric meat grinder to please you with flawless work for a long time, it is necessary to follow simple recommendations for proper operation:
- always carefully before starting work check for correct assembly and secure fixation of all parts;
- pay special attention to the contact between the cutting tool and the grate - they must fit snugly, tightening the fixing nut must be done with force;
- cut the product into piecesnot exceeding the diameter of the loading cylinder, in order to avoid their jamming;
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 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 the product 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 it will not need to do it yourself.
The bone got between the shaft (pushing the meat) and its body, the auger blocked and something cracked in the meat grinder.
Product Link: Gear Electric Gear Plastic Part MS-4775533.
according to the owner, the meat grinder began to crack.
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Just a great store with a huge selection of spare parts for any household appliances, and very low prices.
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More and more often you hear on the trading market and even in large mega techno centers the questions of buyers from sellers about the guaranteed level of reliability and the quality of the purchased goods. Some people really want to sell a product. Others want to buy it, but a third party produces what someone will buy anyway.
Believe it or not, a lot of brand name products often turn out to be 'children's toys'.
Another indignation of the hostess was caused by the recently purchased electric meat grinder. In the assembled state, when the electric motor is turned on, the auger rotates. When feeding into the screw chamber of the product for cutting electric meat grinder auger stops even though the motor is running without stopping.
There are several reasons that can cause such a malfunction.
- Inaccurate assembly of the transmission mechanism.
Sometimes the 'inquisitive' owners of electric combines or conventional electric meat grinders are downright drawn to carry out maintenance, which often ends in a 'technical murder' or 'mutilation' of the kitchen unit.
With such services, hammers and other tools for other purposes are used. Lubrication of friction parts with sunflower oil or complete removal of factory grease. Replacement of parts made from inappropriate material, repairs using inappropriate adhesives, open flames, impacts. With this technique, distortions appear in the axes of rotation, chips, uneven clearance in the gear teeth.
- Disruption of the motor shaft from the drive gear of the gearbox.
The drive gear of the gearbox is mounted directly on the rotor shaft of the electric motor. On different models of an electric meat grinder or food processor, the gear is fixed on the motor shaft through a key, a pin, a through lock, a spline connection or pressing.
Due to jamming in the gearbox, with excessive load on the screw, overheating of the electric motor with heat transfer to the shaft, the fixation between the motor shaft and the drive gear weakens. It breaks the splines and key, and when it is locked with a through lock, it breaks the gear, the pressing weakens immediately. In such cases, the motor rotor shaft rotates freely in the drive gear housing.
But when the gearbox is still reliable, stopping the motor can lead to overheating of the motor windings and its failure.
The auger in the unloaded chamber may rotate intermittently or evenly, but slower than usual and with a characteristic sound. Electric meat grinder gearbox also has its own sound, manifested in good condition.
- Broken teeth on the gears of the gearbox.
A similar case is rare and more on older units or assembly with low quality material. When the gear teeth are worn or when the gap between the teeth of the intermediate gears is uneven, one of the gears of the gearbox slips tooth by tooth with jamming or breaks the weakened teeth, the fragments of which fall into the gaps between the remaining gear teeth.
When the teeth break off on the gears or the gears of the reducer jam “tooth on tooth”, the motor rotor shaft can rotate in the drive gear housing when pressed together or strip off the pin, key or retainer.
- Turning the shaft in the housing of the drive or driven plastic gear of the gearbox.
Modern electric meat grinders are usually equipped with synchronous electric motors with sufficient shaft power.
When the gearbox jams when the electric motor is on, the connection between the motor shaft and the drive gear often weakens.Can break the key, pin, slot. The fixation of the motor shaft with the drive gear will loosen and the shaft will turn in the gear itself.
In the case when the gearbox is made of durable material and assembled without violating the assembly technology, there is a rotation of the driven gear on its shaft, the elongated part of which serves to transfer rotation to the meat grinder screw through the shaft-to-shaft connection. But this very rarely happens when the rotating auger is completely jammed and its shaft and driven gear shaft are fatigued.
- And the most unpredictable and not infrequently encountered reason is the 'licking' of the drive gear shaft of the gearbox by the auger shaft.
The hardness of the steel used for the shafts of the screw and the driven gear of the reducer is insufficient. The steel is soft and very easy to cold work. There is a trace even from a simple kitchen knife.
During the next assembly of the screw chamber for cutting some product, the tightness of the ‘shaft-to-shaft’ connection between the screw shaft and the driven shaft of the gearbox weakens over time. The connection gap increases and there comes a moment when, with an increase in the load on the meat grinder screw, the shafts rotate relative to each other. The edges and edges of the shafts are “licked” and the stronger, the softer the steel and the greater the load.
It happens that the manufacturer did not provide for full compatibility of parts and completes his product with parts only according to some parameters, that is, it corresponds to the diameter - does not correspond to the length, corresponds to the length and diameter - does not correspond to the mount. And the main discrepancy is the discrepancy between the material for the parts used and the expected degrees of load on them.
In the first photo above, you can see that the auger shaft did not fit completely on the driven shaft of the gearbox. The reason is simple: the screw shaft was made shorter by 6 mm and the effective connection area was less than expected - only four millimeters. Either the auger is from other models, or the auger shaft is made “in its own way” or with marriage.
Such a defect in the meat grinder was corrected using electric welding and an emery stone.
Further, everything is simple. On an emery stone, without strong pressure, the head was ground off so that, in the assembled state, the driven shaft of the gearbox would completely enter the screw shaft, and when installing the knife, the grate would not completely fit into its seat.
With a clamping nut, it will be possible to adjust the fit between the knife and the grate, on which the quality of cutting the product and the operation of the kitchen unit as a whole depend.
A meat grinder is simply an indispensable device for grinding different types of meat. If earlier most housewives used manual machines, now more and more users prefer electric devices. This is not surprising, because the electric meat grinder grinds meat of any quality in a matter of minutes, saving the hostess 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 consist entirely of mechanical parts. When parsing, 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 meat grinders. Most often, they blunt knives that are easy to sharpen with a fine grinding wheel. Such a circle is put on the axis of the meat grinder instead of a grid for the output of products and rotational actions are performed with a handle, as when grinding meat.
Sometimes a strong creak is possible during operation of the device. Then you should disassemble the mechanism, lubricate the place of rotation of the handle so that the lubricant does not get to the meat container.
All parts of hand-held devices are made of metal and cannot break when veiny pieces or small bones get in, as a person will definitely feel the tension at hand and clean the mechanism. The exception is modern manual meat grinders, made of fragile metal.
All electric meat mincers, regardless of manufacturer, consist of:
- engine;
- gearbox - consists of several bearings and gears for transmitting motor power into the rotational movements of the cutting mechanisms;
- knife systems (auger);
- control unit;
- power cord.
The main reasons for the failure of electric meat grinders of all brands is their improper use. Only a small percentage depends on poor-quality assembly. The quality of the parts themselves depends on the reliability of the manufacturer. You should not save on it, since repairs can be much more expensive, and parts are not so easy to find 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 products;
- the drive works, but does not gain the required number of revolutions;
- you hear burning or smoke during operation;
- amplification of extraneous noises or knocks that were not previously noticed.
Not always, at the slightest breakdown, you should carry the device to a service center, where it can successfully lie for many weeks, and you will also have to pay decently for repairs.
If the meat grinder does not turn on at all, the cause of the breakdown may be the lack of contact or a malfunction of the control panel.
Disassemble the device by unscrewing all the necessary screws. Sometimes the plastic parts of the case snap together, then you should find all the grooves and VERY CAREFULLY snap them off. Otherwise, you can damage the case, then you will not be able to fold it back. An example of the body disassembly can be seen in the disassembly drawings of the "SCARLETT" model.
SCARLETT meat grinder disassembly diagram: unscrew the metal panel
SCARLETT meat grinder disassembly diagram: remove the fixing screws
SCARLETT meat grinder disassembly diagram: get the gearbox
Check all the contacts, the connection of the power cord to the device, perhaps something should be twisted or soldered.
If the meat grinder turns on, but the auger does not grind the product, the cause may be a faulty gearbox. Bearings could crumble or gears could be worn out from a heavy load or stones.
In this case, disassemble the relay, check all parts for defects. Are the gears scrolling easily, are all the teeth present, is there any excess play when moving. Turn on the disassembled device without loading the auger.
Do this carefully so that all parts do not scatter around and something does not interfere with the operation of the engine!
Do not forget to take pictures or remember the location of the parts, so that later you do not puzzle over what to put where.
Relay failures are the most common cause of meat grinder failure.
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, for most models they are not sold separately. You may have to contact local services to buy the necessary used part from another device or try parts from other models.
In some rare cases, the cause of interruptions in turning the auger may be the wear of the socket for its fastening or the misalignment of the shaft. This can happen from a constant increased load on the device or improperly made sockets from too soft metal. Screw loosening and licking of rotary mechanisms is a very big problem. To eliminate the need for the help of specialists.
If the meat grinder works, but does not gain the necessary speed, an overload has most likely occurred. This problem is most common in Kenwood mg.
The device should be disconnected from the power supply, disassembled, cleaned and cut into meat before serving in a meat grinder in smaller portions.
The main reason for extraneous noise, knocks in the operation of devices is the ingress of extra objects: small bones or veins. They can get stuck and clog the junctions of different parts of the device. Also, on insufficiently washed parts after previous use, food particles can dry out, which causes blockages.
In such cases, the device should be disassembled, cleaned, remove all foreign objects.
Sometimes the cause of extraneous noise and harsh sounds in the operation of the electric meat grinder can be crumbled bearings. They are easy to find and replace.
If you hear burning or smoke from a running meat grinder, the cause is most likely an engine failure.
For self-repair of the motor, 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 repair should be assessed.
The price of repairing a motor is usually very high, so sometimes it's easier to buy a new device under warranty than to repair an old one.
If certain knowledge is available, it should be borne in mind that both spirals of the motor winding are shifted relative to each other by 90 degrees. In the second winding, the currents are out of phase. As a result of this difference, the rotor starts. The current difference is created by the capacitor. It is used to provide initial acceleration of the rotor.
Electric meat grinder motor and rotor
Electric meat grinder motors for home use are asynchronous. In them, the rotation speed of the rotor lags behind the magnetic field of the stator. A damaged capacitor can be the main cause of a meat grinder breakdown.
If the capacitor fails, it should be replaced with a new one.
When buying, pay attention to the capacitance and voltage rating.
If one of the windings is burned out, the engine must be rewound.
In any case, before repairing a meat grinder at home, you should evaluate your strengths and knowledge so as not to aggravate the breakdown.
While scrolling the meat, a medium-sized bone accidentally got into the meat grinder, after which it began to buzz, but stopped rotating.
You can disassemble the meat grinder easily and simply, for this, you need to unscrew four screws in the lower part of the body 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 locking 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. Reassembled in reverse order everything works.
After the crackers were put in the meat grinder, it began to crack and after some time stopped turning, I had to carefully disassemble it in order to identify and fix the malfunction.
Disassembly is quite simple, firstly remove the front gray latch panel from below, then unscrew the five screws and separate the halves. Now you can clearly see the engine and gearbox housing
We unscrew the four screws on the gearbox housing and open it. We see broken teeth at the largest gear. I couldn’t find them on sale. Therefore, they were borrowed from a VITEK meat grinder, though I had to sharpen the hexagon axis a little and have a seat at the auger.
The meat grinder seems to be working, but at the same time it makes extraneous noise and sometimes cracks, 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, unscrew the screws, which are marked with red arrows in the figures below.
Now we separate our disassembly object into two parts and see that it consists of two main components: a gearbox in which plastic gears are installed, and an electric motor, due to which rotational movements are carried out.
Now you can disassemble the gearbox to check the gears and the engine.
Then remove the gearbox cover. Plastic gears are each mounted on its own stem. Remember the location of the gears, and even better, take a picture of them if they differ from our image.
After dismantling the gears from the rods and inspecting them, I found fractures of plastic teeth on the smallest of them. The breakdown is unpleasant, because to repair the meat grinder you will need to replace the gear, but it will not be so easy to find it, because you will need to find either the exact same dead machine, or order its manufacture from a familiar machine operator. You can still try to order from China different sets with similar elements, but not the fact that you will get it.
