DIY Moulinex grinder screw repair

Assembly, by the way, France. High quality plastic.

I did not even think to ring the switch, winding, etc. - I immediately took out the brushes - in a power tool, only they are most often the cause of failure. Yes, to remove the gear motor unit - you need to remove the front cover - it is held from the inside by 4 latches. The plastic is very high quality - you don't have to be afraid to break it.

Fortunately, there were brushes from a Chinese drill at home, which fell apart in the hands on the third day, they turned out to be shorter than the original, but longer than what was left. Therefore, we successfully got up to our workplace.
Reducer. I decided to go over it too.

Prepare a rag and hand wash. Everything inside is covered with annoying graphite dust.

I cleaned everything from old grease, without fanaticism only. After scored in the gears lithol.
The rotation speed of the intermediate and driven gears is low, therefore there is almost no heating, but the helical drive gear and the motor shaft are lubricated more thoroughly.

Putting everything together in the reverse order - test and voila! And no need to run to the store for a new meat grinder!)

Instead of a pusher, they used a fork, and the fork slipped off, fell into the spirals of the auger, the device made a death snore and fell silent? Threw tough meat with an increased 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. Any electrical device contains parts that protect the engine. In meat grinders, this function is performed by bushings (they are also called overload clutches) or gears.

The Moulinex grinder does not have auger bushings, but there are three gears. Most often, the one that is immediately behind the gearbox breaks down. We call it small or DKA gear. You can choose a small, medium or large Moulinex gear in the catalog of the gae4ka.by website. And read the step-by-step instructions with photos and videos just below.

We got our hands on a Moulinex HV3 meat grinder, model A14. A small gearwheel with an oblique tooth on a large diameter "flew" in it. If you need it exactly, click on the zombie

There is a rubber foot in each corner of the machine's base. We take out these legs from the recesses.

There are screws hidden under the plugs. We unscrew them.

We extend the cover. Under it is a niche and 4 more screws. We twist again.

We turn the machine over and detach the case.

Before us is the gearbox, the motor and the "back" of the switch, from which the wires run. The gears are hidden in the gearbox. To get them, you need to unscrew 4 screws. We do it.

We put the meat grinder so that its front part looks up. Disconnect the gearbox cover from the rest of it. If not removable, pick out the cover with a screwdriver.

Before us is something that looks like a deep bowl. Pins stick out from its bottom. Cogwheels are set on them - these are gears. One large metal. The other two, located slightly below, are plastic and smaller. We remove all the gears. We check the integrity of their teeth. You need to change the gear in which the teeth are worn out, 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, put the screws in their places.

We check if we did everything right: we turn on the meat grinder to the outlet. Does the auger start to rotate? So everything is OK.

We encourage ourselves with all sorts of spice graces. We are great!

Not confident in yourself? Busy at work? Or just don't want to change the gear yourself? Come to the service center for the repair of Moulinex meat grinders.

Repair term: up to 5 days (in case of availability of spare parts 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

call the numbers +375 (44) 7654000, 8 (017) 3856214

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.

1. 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.
2. 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.

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 electrical mechanism plastics parts ms-4775533.

according to the owner, the meat grinder began to crack.

In this video I will show what is inside the electric meat grinder and not a big repair. Do you like cutlets and be able to.

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you can order spare parts on the website

Just a great store with a huge selection of spare parts for any household appliances, and very low prices.

Replacing a gear or cogwheel. For models: Braun KGZ3, KGZ31, G1100, G1300, G1500, Power Plus 1100, Power Plus 1300, BRAUN.

More and more often, in the trade market and even in large mega-tech centers, buyers ask sellers about the guaranteed level of reliability and the quality of the purchased goods. Some people really want to sell the 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 are often ‘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 the product for chopping into the auger chamber electric meat grinder auger stops even though the motor runs non-stop.

There are several reasons that can cause such a malfunction.

• Inaccurate assembly of the transmission mechanism.

Sometimes the ‘curious’ owners of electric combines or ordinary electric meat grinders are drawn to carry out maintenance, which often ends in ‘technical murder’ or ‘mutilation’ of the kitchen unit.

During such services, hammers and other tools for other purposes are used. Lubrication of rubbing parts with sunflower oil or complete removal of factory grease. Replacement of parts made of inappropriate material, repairs using inappropriate glue, open fire, impacts. With this technique, skews appear in the axes of rotation, chips, an uneven gap in the teeth of the gears.

• Breakdown of the electric motor shaft from the drive gear of the reducer.

The drive gear of the reducer 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, pin, through lock, spline connection or pressing.

Due to jamming in the gearbox, with excessive load on the auger, overheating of the electric motor with heat transfer to the shaft, the fixation between the electric motor shaft and the drive gear is weakened. It breaks the splines and the key, and with a locking connection with a through lock, the gear breaks, the pressing weakens immediately. In such cases, the rotor shaft of the electric motor rotates freely in the drive gear housing.

But when the gearbox is still reliable, stopping the electric motor can lead to overheating of the electric motor windings and its failure.

The auger in the chamber without load can rotate intermittently or evenly, but slower than usual and with a characteristic sound. Electric meat grinder gearbox also has its own sound, which is also manifested in good condition.

• Broken teeth on the transmission gears of the reducer.

A similar case is rare and more on old units or on an assembly with low-quality material. When the teeth of the gears are worn or when the gap between the teeth of the intermediate gears is uneven, one of the gears of the reducer jumps tooth to tooth with jamming or breaks loose teeth, the fragments of which fall into the gaps between the remaining teeth of the gears.

When the teeth on the gears break off or the gears of the reducer wedge 'tooth to tooth', the rotor shaft of the electric motor can turn in the drive gear housing with a press-fit connection or tear off the pin, key or retainer.

• Rotation of the shaft in the drive housing or in the driven plastic gear wheel 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 is often weakened.Can tear off a 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 violations of 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 auger through the 'shaft to shaft' connection. But this very rarely happens when the rotating auger is completely jammed and its shaft and the driven gear shaft are tired.

• And the most unpredictable and not uncommon reason is ‘licking’ of the driven gear shaft of the reducer by the auger shaft.

The hardness of the steel used for the auger shafts and the driven gear of the reduction gear is insufficient. The steel is soft and very easily amenable to any cold work. There is even a trace of a simple kitchen knife.

With the next assembly of the auger chamber for chopping some product, the tightness of the 'shaft to shaft' connection between the auger 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 auger, the shafts rotate relative to each other. The edges and edges of the shafts 'lick' and the stronger the softer the steel and the greater the load.

It happens that the manufacturer did not provide for the full compatibility of parts and completes his product with parts only in 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 fastening. And the main discrepancy is the discrepancy of the material for the parts used to the expected degrees of stress on them.

The first photo above shows that the auger shaft was not fully fitted onto the driven shaft of the gearbox. The reason is simple: the auger shaft was made 6 mm shorter and the effective connection area was less than envisaged - only four millimeters. Either the auger from other models, or the auger shaft is made ‘their own way’ or with defects.

Corrected such a defect in a meat grinder using electric welding and emery stone.

The auger shaft was shortened by 3mm and a prepared X8 hex socket was welded to it. Thus, the shaft was increased by 14 millimeters, since the head had a length of 17 millimeters.

The rest is simple. On an emery stone, without a strong pressure, they grinded off the head so that in the assembled state the driven shaft of the gearbox would fully enter the auger shaft, and when the knife was installed, the grate would not completely enter its seat.

The clamping nut can be used to adjust the tightness between the knife and the grate, which affects the quality of cutting the product and the operation of the kitchen unit as a whole.

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 panel

SCARLETT Meat Grinder Disassembly Diagram: Remove the Mounting Screws

SCARLETT meat grinder disassembly diagram: get the gearbox

Check 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 rotor

The 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 works

After 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 housing

We 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.

Now you can disassemble the gearbox to check the gears and the engine.

After that, remove the gear cover. Plastic gears are installed each on its own rod. Remember the location of the gears, or better yet, take pictures 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 either need to find exactly the same killed device, or order its manufacture from a familiar machine operator. You can also try to order different sets with similar elements from China, but it is not a fact that you will get there.