The garden juicer does not rotate and is buzzing. How to repair a juicer with your own hands, types of engines. Malfunctions and their elimination

Electric juicer is a household electrical appliance designed for grinding fruit or vegetable pulp and then squeezing the juice.

Electric juicers come in two types based on their operating principle: - centrifugal and auger. Centrifugal juicers, due to their low price and high performance, have become very popular. The article is devoted self-repair centrifugal juicers, one of which, Sonifer SF-5508, is shown in the photo.

The electrical circuits of most types of juicers are fundamentally no different. Only a block can be added electronic control operating modes.

The supply voltage is supplied through a C6 type plug using a flexible cord. Capacitor C1 serves to suppress noise emitted by the motor brush assembly. Resistor R1 serves to discharge capacitor C1 after disconnecting the plug from the socket to prevent electric shock to a person when touching the pins of the plug. These elements in budget models Juicers may not be available.

The selection of operating modes of the juicer is carried out using switch S1. In the position shown in the diagram, the juicer is turned off. When the switch handle is moved one position to the right, its moving contact closes terminals 1-2 and the supply voltage through the rectifier diode VD1 is supplied to the electric motor, indicated in the diagram by the letter M. The diode does not pass half of the sine wave alternating current and thus the speed of rotation of the grater sieve is reduced by half.

When you move the engine one more step, contacts 1-2-3 close, and all the mains voltage is supplied to the motor winding, and the juicer operates at full power.

The limit switch Sbl serves to exclude the possibility of turning on the juicer when the top cover is removed and performs the task of protecting a person from injury. It is mechanically connected to the cover, and if it is not installed, the switch is open.

To reduce wear on the brush-commutator assembly of the engine and suppress radio interference, spark-extinguishing capacitors C2-C3 are used. Often, to better suppress radio interference, inductors (chokes) are also installed in the open circuit of the motor power supply.

To protect the engine from overheating during long-term operation (more than 15 minutes), a thermal protection element St is used, which opens the supply voltage supply circuit.

A connection indicator can also be installed in the circuit. Usually this is a miniature neon light bulb connected through a resistor to the supply voltage wires.

Juicer malfunctions and how to fix them

Attention! Care should be taken when repairing an electric juicer. Touching exposed parts of a circuit connected to an electrical network may result in injury. electric shock. Don't forget to remove the plug from the socket!

The juicer is used more intensively in the fall, when vegetables and fruits ripen, so on average it experiences little load per year and, if the operating rules are followed, lasts a long time. But over time, even with careful use, grease is produced in the bearings and the juicer has to be disassembled for maintenance.

There are two types of breakdowns most often observed in juicers. It does not turn on or the grater does not rotate at sufficient speed.

Table of common juicer malfunctions and how to fix them
External manifestation of the malfunction	Possible cause of malfunction	Troubleshooting	Repair method
The juicer turns on, but the grater rotates slowly	The grease in the electric motor bearings has thickened or run out	If the bearings are insufficiently lubricated during operation, the juicer produces increased acoustic noise and a burning smell may appear due to overheating of the electric motor windings	It is necessary to disassemble the juicer and lubricate the sliding bearings with machine oil.
The juicer turns on, but the grater rotates slowly	Mechanical wear of the upper bearing of the electric motor due to lack of lubrication. In this case, lateral vibration of the grater sieve relative to the center of rotation is often observed	Rock the grater holder to the sides. If the play is more than 0.5 mm, then the bearing is worn out	Replace the bearing with a new one
The juicer does not turn on, the grater does not rotate	The cord is not plugged into the outlet	Check	Insert the cord plug into the socket
	No voltage at the socket	Check the presence of voltage in the outlet using a working electrical appliance	Connect the juicer to a working outlet
	The power cord is faulty	Visually check the plug and cord for mechanical damage, check the integrity of the cord wires with a multimeter	If faulty, replace the cord
	The switch that blocks engine starting when removed cover	You need to open the juicer and test the switch with a multimeter. When the cover is removed, the resistance between the contacts should be equal to infinity, and when closed, it should be zero.	You need to disassemble the juicer and first check the free movement of the pusher. If the pusher is in order and the switch can be disassembled, then using sandpaper Clean contacts from carbon deposits. If it is impossible to repair the switch, replace it
	Motor brushes are worn out	Carry out an external inspection of the brushes. They must fit tightly with their entire surface to the lamellas of the rotor commutator, have no cracks or chips, and move easily in the holders. The collector lamellas should not have a large output	If brush wear is detected, replace
	Broken motor rotor or stator windings	Visually check the windings for mechanical damage and local darkening, check the integrity of the windings with a multimeter	If a break in the winding is detected or it smells like burning, then repairing the juicer is not economically feasible
	The thermal fuse has tripped as a result of overheating of the electric motor due to its malfunction or long work juicers. Household juicers are designed to operate for no more than 15 minutes followed by a half-hour break	Thermal fuses are disposable and self-resetting. Therefore, you need to let the engine cool and check it after half an hour. If the juicer does not work, you need to disassemble it and check the integrity of the thermal fuse with a multimeter. Its resistance should be zero. To check in the absence of the device, you can temporarily short-circuit its terminals	If the thermal fuse breaks, replace it. If, after replacement, the thermal fuse blows again when the juicer is operated for a short time, then the electric motor is faulty

An example of repairing a Sonifer SF-5508 juicer

The Sonifer SF-5508 juicer, purchased a year ago, worked properly for a year, and at the next spin carrot juice the sieve knife began to catch on the housing cover.

By ear level acoustic noise did not increase, but appeared extraneous sounds, the engine shaft, when rotated by hand by the coupling on which the grater knife is attached, turned easily. But its lateral play was more than 3 mm, which indicated wear on the upper engine bearing. It became obvious that the juicer needed to be disassembled and the bearing replaced.

How to disassemble a juicer

I did not describe the structure and operating principle of the juicer, since everything will become clear when viewing the photographs.

Disassembling a juicer, regardless of manufacturer or type, begins with removing the bottom cover. To do this you need to unscrew several screws.

Some of them were in plain sight, while the rest were hidden under the legs. In order to get to the screws I had to remove the legs.

The screws were at great depth, and a Phillips screwdriver with long rod. The screwdriver shaft with replacement bits was not included.

After unscrewing the screws, the bottom separated from the juicer body with a little effort and all elements and the electric motor became available for repair.

An external inspection showed that the build quality was at the proper level, all parts were without visible defects, the engine rotor manifold was in good condition, and there was no wear on the lower engine bearing.

A self-resetting thermal fuse was installed on the electric motor with an operating temperature of 105°C, which guaranteed its protection from overheating if the permissible operating time was exceeded.

The electric motor is attached to the juicer body with three screws, but to remove it, you first need to remove the coupling on which the grater-sieve is installed.

The couplings on the electric motor shaft in juicers are threaded or pressed on. How is the coupling secured? in this case was unknown and had to be determined experimentally.

All attempts to remove the coupling from the shaft by pressing levers on it were unsuccessful. The assumption was that the coupling was attached to the shaft using a thread. When trying to remove the coupling, it was noticed that the rotor shaft had moved upward relative to the bearings. That is, the coil on the shaft has moved down a little.

Typically, the shafts of electric motors of household electrical appliances, onto which the working tool is screwed, have splines, for example, like in a coffee grinder. By the way, the bearing was also faulty there. But in this case there was no slot. Therefore, I decided to cut it with a mini-drill with an attachment in the form of an emery disk.

But the slot didn't help. When trying to unscrew the coupling, the blade of the screwdriver was pulled out. Remembering that the winding on the shaft was moving, he placed a plywood plate on the coupling and hit it with a hammer several times while hanging. The shaft moved out of the lower bearing a few millimeters, which was enough to clamp it in a vice.

To avoid damaging the surface, a cloth was placed on the coupling and a pipe wrench was used to clockwise rotation, the coupling was safely unscrewed. The attachments are always unscrewed from the motor shafts in the direction opposite to their rotation during operation.

The coupling was removed without damage from outside, there were only marks on the plastic from the tool when I tried to remove it. There was a concern that the plastic would crack or break off the brass bushing.

When repairing a juicer, removing the bushing turned out to be the most challenging task. But it was successfully resolved. The top cover was held together by screws from the bottom and was easily removed.

The upper bearing was badly worn from the inside, the gap was more than 3 mm. It was amazing how the juicer could work with such wear on the bearing. The wife squeezed the juice and did not complain about the operation of the juicer until the sieve-grater began to catch the top lid.

Unlike the bearing, there were no signs of wear on the electric motor shaft. To select the axial clearance, two wear-resistant washers were installed on it, and a spring washer between them.

Juicer repair

Repairing the juicer turned out to be much more difficult than it seemed at first glance. Had to do a lot of metalworking high precision, that at home on the knee is not easy.

To remove the bearing, the engine had to be disassembled and the rivets that held the bearing fixing bar were drilled out using a drill.

The drill diameter was chosen to be 2 mm in order to subsequently cut an M2.5 thread to secure the strip after installing the new bearing using screws.

The search for a similar bearing did not yield any results. The shaft diameter was 6.4 mm. There are no bearings in the standard series with this size. The closest in size was number 696 with an internal diameter of 6 mm, an external diameter of 15 mm and a thickness of 5 mm. To install it, the shaft had to be grooved. The test showed that you can remove 0.4 mm from the shaft at home using a file. Therefore, bearing 696 was chosen for repairing the juicer.

The fitting showed that the rolling bearing was well installed in the seat, but did not allow the fixing bar to be pressed against the plane of the engine part when tightening the screws. A gap of 2 mm remained, which did not exclude displacement of the bearing during operation and arbitrary unscrewing due to vibration of the screws.

Therefore, it was necessary to make a fixing washer from a 2 mm thick duralumin plate. The hole for the bearing was cut using a jigsaw with a metal file installed.

The hole was cut slightly smaller required diameter, and further enlarged using a round file to the size of a tight bearing fit.

To groove the electric motor shaft, it was clamped into an electric drill from the commutator side. To prevent accidental damage to the winding, a wide washer was placed on the shaft, and the thread was protected by a piece of vinyl chloride tube.

I hold the electric drill, turned on at low speed, in one hand, and the file in the other, the diameter of the shaft was brought to the right size. When grooving a shaft, you must first remove more metal near the threads to prevent diameter subsidence at the winding. Move the file along the shaft with minimal pressure.

Every 30 seconds of processing, the drill should be turned off and the diameter of the shaft should be measured in several places using a caliper or micrometer so as not to miss the size. The grooving took no more than 5 minutes, and the bearing fit tightly onto the shaft.

For the assembly of the juicer, which is produced in reverse order, it took no more than 10 minutes. Turning the shaft by hand showed its free rotation and sufficient clearance between the rotor and stator, which indicated correct alignment of the installed bearing. Before assembling the juicer, the lower bearing was lubricated with machine oil.

The first part of the video shows the operation of the juicer before repair. The engine makes strange sounds, the clutch deviates greatly from the center of rotation. The second part shows a juicer extracting juice. The vibration of the sieve grater is practically absent.

Of course, I had to think and work a lot, but I managed to repair the juicer with my own hands and return household electrical appliances to service. I'm sure it will serve for many more years now.

The question of whether a juicer can be made with one’s own hands is primarily of interest to owners of summer cottages and garden plots who annually harvest fruits and berries, which need to be quickly processed and preserved. Adding even more relevance to this issue is the fact that juices obtained independently are much tastier and healthier than those sold in stores.

Today, purchasing a juicer of any capacity does not present any particular problems, but such equipment is not cheap. That is why it is advisable to make a juice press with your own hands, especially since the design of such devices is not very complex.

How do juice extraction devices work?

Before wondering how to make a juicer with your own hands, you should understand the principle by which it works. To extract juice from fruits or berries, you need to apply pressure to them. In my own way design and the principle of operation of the juicer can be of the following types:

mechanical devices;
hydraulic;
electrohydraulic;
pneumatic.

Juicers are the simplest in design. mechanical type, which are most often made by home craftsmen with their own hands. The operating principle of such devices, which do not differ high performance, but quite suitable for household use, is based on the fact that the raw material is acted upon by a piston, the pressure on which is exerted using a screw mechanism. Fruits and berries are loaded into a perforated basket, through holes in the walls of which the finished juice flows into a storage tray.

The basket of screw presses can be made from sheet metal of stainless steel or hardwood. Wooden baskets are drainage grates consisting of two halves connected to each other using metal hoops. Screw presses The design described above can even be used for squeezing apple juice. In this case, the raw materials are loaded into the basket of such a juicer in finely ground form.

How to make a juice press with your own hands

As mentioned above, the simplest in design and, accordingly, the easiest to manufacture are mechanical presses for squeezing juice. To make your own apples, on which you can process other fruit and berry raw materials, you will need the following Consumables and tools:

stainless steel sheet;
channel or square metal pipe cross-section 40x40 and wall thickness of at least 3 mm;
pipe with a diameter of 16 mm;
a rod with a thread on its surface;
screw;
board 30 mm thick;
welding machine;
Bulgarian and electric drill;
hammer;
hacksaw for metal.

Before you start making homemade juicer for apples, it is advisable to find drawings or drawings of such a device on the Internet or draw them yourself. It would also be useful to watch a video on making a juicer, which shows this process in all its details.

Juicer press options

In the upper part of the resulting press frame, it is necessary to drill a hole into which a nut for the screw mechanism of the device is welded. Depending on whether you need a large or small juice press, select the dimensions of the perforated basket and frame, which serves as the supporting element of the entire juicer.

As a piston through which the screw mechanism will exert pressure on the raw materials loaded into the basket, you can use wood board(a circle of the appropriate diameter is cut out of it).

Wooden piston Stainless steel piston PTFE piston

How to repair a juicer with your own hands, types of engines.

To repair a juicer yourself, you need to know the type of device it has and what kind of motor is inside. If the breakdown is related to the engine, then you can repair the product yourself, depending on the complexity of the problem. But in some situations, every housewife can repair the juicer on her own.

What types of electric motors are there?

Regardless of the cost of the juicer, if there is a motor inside, then its structure is largely similar. The only difference will be that cheaper models are noisier, and higher-priced products produce less noise. The specific properties of the juicer, with the exception of noise level, depend on the design of the mechanical part.

In cheaper models of juicers, the motors are most often asynchronous. They are characterized by simplicity of design and maintenance, and have high efficiency. Such engines make a lot of noise and require a centrifuge of a larger diameter. There are commutator motors that have no restrictions. Juicers with such engines are smaller in size.

Shaft electric motor includes impellers that blow air over the stator coils. This is necessary in order to cool the winding while the devices are operating. Some people disassemble the juicers and see that there are no described elements inside. In such a situation, if courage allows, the design can be supplemented with them yourself. It is important to choose the right blade shape, and this addition will soften the thermal conditions of the engine.

In some juicers modern type there is a centrifuge. Due to its presence, the diameter of the working chamber must be increased. This results in increased centrifugal force, reducing engine speed. The quality of the juice will be slightly lower.

What can break in a juicer?

The easiest way is to fix the nozzle yourself. Often the plastic gear or clutch needs to be replaced. A set of these elements can be from two to eight; if necessary, you should purchase new parts. Steel gears in juicers – very rare. If they fail, then buying new products will cost more than buying a new household appliance. Typically, steel gears are found on large industrial units.

The main malfunctions will concern the engine, which is why so much attention was paid to its design in this article. First the power is checked, then the winding. If there are problems with the winding, then you need to try to wind the coils again.

Problems associated with commutator motors are easier to resolve. After all, the starters in such models are an ordinary choke strung on a wire with a magnet. For each section position, such engines are started separately. Therefore, until the drum has completed a full rotation, it will be possible to diagnose a malfunction. IN asynchronous motor The rotor cannot burn out due to the fact that sufficient current does not pass through it. But the copper wire may separate from the base. The juicer looks quite solid and large, but its design is so primitive that in the vast majority of cases, only the mechanics or drive breaks down.

It is possible that a housewife without experience in disassembling and assembling household appliances will find it difficult to understand the mechanics of the juicer. In such a situation, you need to turn to one of the men, because the basics that are described in this article are taught to them at school during labor. If it is difficult to fix the problem yourself, then it is better to go to a service center.

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Lovers of freshly squeezed juice and happy owners of devices for squeezing it inevitably face the problem of how to disassemble their favorite juicer without fatal consequences for its functionality. There are many such household appliances available in the market under different brands.

They can be made in four options:

centrifugal type,
with screw extraction,
combined,
devices for citrus fruits.

Regardless of the model, device, brand and quality of workmanship, they all require regular maintenance. During the extraction process, pulp and juice residues accumulate inside the machine, which must be removed after each use. Delaying this may negatively affect the functionality of the device and lead to its premature failure. Despite the reliable design of most branded devices, they can fail. Depending on the nature of the breakdown, the repair can be complex, requiring special knowledge and the participation of an expert, or simple. In the latter case, you can do it yourself, which will require dismantling structural elements juicers.

Device

To disassemble/assemble the device, you must have at least a general understanding of its design. Spinners may have different design And design features. But in general terms their structure is approximately the same. Each juicer is equipped with:

housing for mounting structural elements;
a metal (less often made of plastic) basket with a grater, where the product is crushed;
container for accumulating cake;
removable tank for collecting juice;
a lid with a hopper for loading vegetables or fruits;
pusher;
motor unit with power cable;
control unit with switch.

Instructions

Condition correct operation and disassembling/assembling the unit is to carefully read the instructions. Our traditional neglect of this document and the desire to solve problems using the “scientific poke” method often becomes the cause of unforeseen defects and failure of the device. Such a document, translated into the consumer’s language, is included in the kit of any device from more or less famous manufacturer. It usually includes a description:

a device with a schematic or photographic demonstration of each element;
rules of use indicating measures for safe operation;
procedure for preparing for use;
the sequence of dismantling structural elements and their reassembly;
features of functioning.

General disassembly rules

Before disassembling the device, make sure to turn off the power. This is not only moving the switch to the “Off” position, but also removing the power cord from the network. The statement is banal, but relevant, given the potential danger of the device and the forgetfulness of some housewives. You should begin dismantling the device for maintenance only after the mechanism has completely stopped. In the very general view, regardless of the model, the disassembly sequence may be as follows:

removing the pusher from the loading hopper;
removing the cover, with preliminary detachment of the fastening;
removing the chopper;
dismantling the container for collecting juice.

The removed elements should be washed, dried and returned to their place in the reverse order.

Engine Access

Most serious malfunctions are associated with engine failure. Before repairing it, you should correctly assess your strength and experience. If there is none, it is better to use the services of professionals. Before dismantling the engine, you need to make sure that the problem is really related to the drive. To do this you need to check:

presence of voltage in the network,
the power cord is in good condition,
plug.

If there is still a need for complex repairs, you will need to perform the disassembly described above, plus remove the pulley, which most often twists from the shaft in the direction opposite to the operating rotation. Access to the engine compartment is from below. To do this you need:

unscrew the fastening screws of the protective cover of the engine compartment;
if the engine is placed in a protective casing, it must be removed;
remove the engine mount and pull it out;
conduct visual inspection, establish the nature of the malfunction and begin to eliminate it.

Features of disassembling centrifugal and screw devices

Using the method described above, you can disassemble centrifuge juicers from any manufacturer. There may be nuances in the design, but they do not fundamentally affect the dismantling procedure. This procedure is performed in a similar way with vertical screw analogues. The difference is that instead of a grater there is a volumetric auger in protective casing. Horizontal screw devices resemble a meat grinder in design. Their dismantling is carried out:

removing the installed nozzle;
disconnecting the receiving device with the auger from the main body;
removing the auger itself;
In most cases, the drive is also accessible from below.

The described installation/disassembly options are not a guide to action and are for informational purposes only. Each specific model of the device is disassembled in accordance with the manual included with the device, which will avoid accidental breakdowns.

D. Lepaev

Drinking a glass of fruit or vegetable juice is pleasant at any time of the year. but preparing it using a grater and then squeezing it out is not so easy. A considerable investment of effort and time is required. And an electric juicer handles this task almost instantly.

This compact device is easy to use and consumes negligible electricity. An hour of continuous operation of a juicer costs a few pennies.

Electric juicers are designed to extract juice from fresh fruits and vegetables by grinding the product and centrifuging. In addition, they are used for chopping and cutting fruits and vegetables into slices.

The following classification of electric juicers has been adopted in Russia (Table 1).

Electric juicers, depending on the additional operations performed and structural elements, are manufactured in four degrees of comfort (highest, first, second, third). Comfort elements include the following:
grater devices raw vegetables, chopping and cutting vegetables, mixing liquids, chopping vegetables and fruits;
electric brake;
device for storing the connecting cord;
speed controller;
additional filter for better juice purification. Juicers have a permanent connecting cord 1.5 m long. The sound level for a device of the highest quality category should be no more than 72 dBA and for a device of the first quality category - no more than 74 dBA.

Technical characteristics of domestic electric juicers are given in table. 2.

Electric juicer “Juice”

type SVMR consists of an electric drive housing 1 (Fig. 1), in which an asynchronous electric motor 2 is secured with four screws. A platform 8 is mounted on the electric motor shaft and secured with fonts, on which, using

The mesh basket 4 and the grating disk 5 are installed and fixed with plastic nuts. A plastic perforated tape 7 is placed in the mesh basket along its walls.
The housing 3 of the juicer is installed on the housing 1 of the electric drive. To fix it on the electric drive housing there is a special protrusion. The juicer body is closed with a lid 6, which has a loading window for storing products. The lid is latched using a carrying handle set to a vertical position. Using switch 9, the electric motor rotates the mesh basket and the grating disk.

Products loaded through the loading window are fed by a pusher to the knives of the grating disc. The crushed products are thrown onto the walls of the basket under the influence of centrifugal force. The juice enters tray 3 through the holes in the belt and basket and flows into the prepared dishes.

When preparing the juicer for operation, it is necessary to install housing 3 so that the flats on the holes of the basket and disk coincide with the flats on the platform shaft. The grating disc and mesh basket are secured with a nut.

Disassembling the juicer

comes down to disassembling the electric drive. To do this, place the drive on the table, unscrew the four screws securing the bottom and remove it. Place a support under the output shaft of the drive (so as not to bend the shaft) and, using a bit or tube, knock out the pin securing the platform hub 8 to the shaft. Remove the platform. Unscrew the screw of the clamp securing the power cord to the drive housing. Remove the two screws securing the switch. Remove the four screws securing the electric motor to the housing. Remove the electric motor from the housing along with the switch and cord. To disassemble the engine, unscrew the four nuts that secure the front shield, stator package and rear shield using studs. Disconnect the switch and connecting cord. Replace faulty part or node.

Reassemble in reverse order. While doing this, lubricate the bearings by placing a few drops of mineral oil into each bearing.

If the juicer does not turn on, check the serviceability of the cord, switch, and electric motor windings.
If the electric motor hums, but the shaft does not rotate, check to see if the rotor is stuck. If necessary, ensure free rotation of the rotor by loosening the tie of the stator package and then securing it. Check the condition of the bearings and add grease. If there is strong vibration, check the quality of assembly of all parts, as well as the reliability of fastening the grating disk and basket to the platform shaft.

Electric squeezer "Zhuravushka-2" SVSP-301.

The juice is obtained by grinding the product with a grating disk and centrifugation. The pulp is periodically removed by moving the blades of the ejector mechanism towards inner surface rotating centrifuge.

The electric juicer consists of an electric motor 25 (Fig. 2), a sieve 3 for centrifugal filtration, housings 13 and 16 with a loading hopper, a fan 18, a grating disk 2, a tray 5 and an ejector 12.

Disassembling the juicer for repair.

Remove pusher 4, tray 5, cover 9, nozzle 7, unscrew clamp 11 and screw 10. Remove ejector 12, spring washer 8 and handle 6. Unscrew clamp 1. Remove grating disk 2, sieve 3, housing 13. Unscrew screw 19, remove fan 18, unscrew screws 17, remove housing 16. Unscrew nut 23 and screw 20, remove cage 22 with spring 21. Unsolder the wires from the terminals of switch 24 and remove the switch. Unsolder the wires from the capacitor terminals. Unscrew the screw and remove the capacitor. Unscrew screw 15, remove electric motor 25. Unscrew the screw on the block, remove connecting cord 14 and wires.

Replacing the electric motor.
Unsolder the wires from the terminals of switch 24 and from the terminals of the capacitor. Unscrew screw 15 and remove electric motor 25. Install a new electric motor and assemble the device in the reverse order.

Replacing the connecting cord.
Unscrew the block screw, remove connecting cord 14 and wires. Install a new connecting cord.

Replacing the capacitor.
Unsolder the wires from the capacitor terminals. Unscrew the screw and remove the capacitor. Install a new capacitor and solder the wires.

Assembly. Remove traces of dirt from the body parts of the juicer. Reassemble in the reverse order of disassembly.

Adjustment after assembly. After assembling the lid of the electric juicer, it is necessary that the handle 6 of the ejector 12 rotates with little effort. Adjust the rotation of the handle with screw 10. The gap between the grating disk 2 and the lid hopper should be 0.5 mm. The gap is adjusted using screw 26 located on the lower shield of the electric motor. After adjustment, the screw must be secured with a nut and painted with enamel.

Inspection and testing. External inspection is carried out visually. At the same time, the integrity of the assembly units is checked, appearance, completeness.

Functional testing is carried out by briefly plugging it into the electrical network. The insulation of the juicer must withstand a sinusoidal voltage of 4500 V for 1 minute.

The test voltage is applied to the interconnected pins of the cord plug and the body of the electric juicer. To check the insulation strength, a breakdown device UPU-1M or similar is used. To test circuits electrical diagram an avometer is used.

Repaired juicers must comply with the requirements of GOST R 50938-96 "Repair and Maintenance electrical household machines and appliances."
REPAIR&SERVICE-11 2000