VAZ 2108 generator to put. Connect and repair the generator on the "eight" on its own. Generator assembly is carried out in reverse order

the main / Protection \\ Hydones

Installed the VAZ-2108 generator in front motor compartmentis driven by a flexible wedge-shaped strap. We need to power the on-board network of the car and charging the battery. The unit needs in timely service - if not to repair, it will stop feeding the network, will cause a lot of trouble.

The first signs that the generator does not work is a noticeable decrease in the brightness of lighting and the voltage drop. But most importantly - the lamp lights up dashboard. Examine the design of the eight generator to independently produce its maintenance and repair.

What is the generator?

It is needed to power the on-board network when the engine is running. On the stopped, the entire network is powered by a battery. If you independently replaced the VAZ-2108 generator or any other car, you saw that it has one power output. Several wires are connected to it:

  1. The thickest connects the generator with the plus terminal of the battery. It is on this wire that the battery is charging. Please note that there are no fuses on it. Therefore, with any manipulations with the generator, it is necessary to de-energize the onboard network.
  2. A thin short wire that goes to the voltage regulator is necessary to power the excitation winding.
  3. Rarely, it happens that additional equipment is connected to this generator output.

On cars is used quite old, but the proven design of the VAZ-2108 generator. The carburetor is used in the fuel injection system. On the injector cars From the power output of the generator, fuel injectors and ignition coils are bootable. All other consumers take power from the positive output of the battery.

Generator design

You can select several component partsFrom which the generators used in cars are consisting:

  1. The rotor - on it is an excitation winding.
  2. The stator is a fixed part, consists of a magnetic pipeline (made of transformer steel) and a power winding.
  3. The front and back covers are the bearings needed for free rotation of the rotor.
  4. The horseshoe block of the rectifier - consists of six semiconductor diodes.
  5. Brush knot in one case with voltage regulator.
  6. Condenser - allows you to get rid of the variable component of the current generated.
  7. Contact rings - with their help transmitted current to the rotor excitation winding.

To lead the rotor, the VAZ-2108 generator belt is used. It puts on the crankshaft pulleys and the generator.

Feature of the generator

The prerequisite for the functioning of any generator set is the presence of a magnetic field. And it should not be normal, but movable. In the first year of studying physics at school, magnetic fields are considered, as they arise and their features.

If you bring a permanent magnet to the frame from some conductor, then no changes will occur. But if it is forced to rotate a frame or a magnet, then the potential difference will appear at the edges of the conductor. This principle is laid in alternators of alternating current.

Work of the automotive generator

But in the generator there is no magnet, its functions performs an excitation winding. You can briefly describe the states like this:

  1. When the motor stopped and the ignition is stopped, all car systems are de-energized, voltage is not supplied to the excitation winding.
  2. When you turn on the ignition, the constant voltage is served on the regulator.
  3. The voltage regulator allows you to stabilize the value at one level.
  4. The current is transmitted through brushes and contact rings on the rotor winding.
  5. There is a magnetic field, but it is fixed, therefore voltage is not produced on the power output. But it is, since this conclusion is electrically connected to the positive battery terminal.
  6. As soon as you start rotating the crankshaft starter (or even by pushing the car), the generator rotor rotates and is generated by the current.

After starting the engine, the main power supply for electricity consumers takes on the generator, the battery at that time is charged.

Removing the generator on the "eight"

To dismort the unit for replacement or repair, you will need the key to "17" and the mounting blade. Be sure to close all threaded connections to ease disassemble before starting work. The procedure is as follows:

  1. Disconnect the minus terminal from the battery.
  2. Unscrew the top nut of the generator body mount to the bracket.
  3. Remove the nut on the lower bolt of fastening.
  4. Slide the generator body to the engine block and remove the belt.
  5. Remove the nut with the power contact and move towards the wire.
  6. Remove the lower fastening bolt.

After all these manipulations, you can completely dismantle the unit. You can do this as a bottom, if not installed on the car protection and top.

Modifications of generators

The new cars VAZ-2109, 21099, 2110 were installed modifications of generators with a designation 94.3701. They have a lot higher power than those used on eights. But the dimensions of the VAZ-2108 generator are the same as in more modern, installed on dozens. Therefore, they are interchangeable, but have various characteristics. Here is the difference:

  1. The strength of the current in 94.3701 is 80 A, which is 25 a higher than the eight unit.
  2. Voltage adjustment range on Generator 94.3701 more.
  3. Above the transfer ratio between the generator rotor and the engine crankshaft.

Installing a new unit is appropriate if the larger capacity battery is used, and there are a lot of those that have electricity consumers big power. And if you use standard electrical machines, the battery will be discharged, it does not have enough current.

Disassembly of the eight generator

To spend full repairYou will need to disassemble the entire unit. For this:

  1. Disconnect the voltage controller power and unscrew the two bolts of its fastening of its housing to the rear lid.
  2. To unscrew all the nuts that the back cover is attached to the head on the "10".
  3. Gently push the bolts to remove them a little from the front cover. By this you stroop the rotor - the bolts hats will be offered in the impeller.
  4. Remove the nut to which the pulley and the impeller are attached to the Rotor.
  5. Remove the pulley, try not to lose the key.
  6. Remove the bolts.
  7. Disconnect all parts using a flat screwdriver.

That's all, now all the components are decomposed, but it will be necessary to carry out several manipulations for full disassembly - the rectifier unit is still connected to the stator windings. But if you only need to replace the Bearings of the VAZ-2108 generator, remove everything else.

Replacing bearings

This breakdown occurs very often, a terrible whistle from the generator side appears, grinds. The reason for the appearance of foreign sounds is alone - excessive wear due to exceeding the permissible resource or due to the strong belt tension. To replace bearings, you need:

  1. On the front cover, unscrew the strip fastening bolts.
  2. Using the mandrel, knock out the bearing from the landing place.
  3. Wipe metal so that there are no traces of metal or dirt.
  4. Apply a small amount of lubricant to the new bearing.
  5. Gently with the mandrel press a new bearing.
  6. Screw the bar bolts.

With the back cover, it's still easier - it is usually removed with the rotor, it remains to gently knock him down.

Replacing the valves

You can multimeter to check the health of all valves and replace faulty. It usually fails only two. But a prerequisite for the ideal work of the rectifier is the resistance of all semiconductors should be the same. Otherwise, in one shoulder, the voltage will be larger in the other. Carefully read how the VAZ-2108 generator is connected so that when assembling is not inhabited by nothing.

The easiest way to repair is to replace all the horseshoe. If there are few voltages, the battery is not charging, but the belt is stretched as it should, the regulator is working, then it will be necessary to carry out a small "tuning". In the design you need to enter further several diodes to increase the output voltage. The way is more difficult - to reveal what valves have failed to replace them, carefully suck contacts and pour epoxy resin to avoid short circuit. It is unlikely that someone wants to carry out so many manipulations, because the finished rectifier costs about 350-450 rubles.

Moderator windings

Some of the reliable nodes of the VAZ-2108 generator is its windings. You can check their performance using a multimeter or probe on the lamp. To do this, connect the probe with contact rings on the rotor - the lamp should light up. The melmetre will show the presence of resistance. At the same time, check if there is no breakdown on the body. Similarly, the stator windings are checked.

If there is a break in the windings, or a closure on the housing, it does not make sense to conduct an independently rewind - the occupation is too complicated. It's easier to find on secondary market Similar item and replace. You can contact the workshops engaged in the rewinding of engines. But the amount of repair will be approximately the same as the cost of a new rotor or stator. On the secondary market, you can buy a completely working VAZ-2108 generator for 1000-2000 rubles, the new twice is more.

Finally

Immediately, you need to install new contact rings and voltage controls on a purchased generator that was previously used. After installing the VAZ-2108 generator, check the battery charging. The voltage must be up to 14.7 volts. If below, it is worth upgrading the diode block or check the voltage regulator. It is also recommended to replace bearings in order not to disassemble the unit several times.

The generator in cars is designed to generate electricity and battery charge. When violating the normal operation of the automotive electric generator, the battery begins to discharge and soon the car will cease to start at all - not enough battery. This device consists of a three-phase diode bridge, which, in turn, has silicon 6 diodes. The electrical voltage is created by the excitation of the current rectifier at the moment when the rotor poles change under the stator windings. When the rotor rotates inside the machine stator, the rotor pole change. In order to increase the magnetic stream value, the stator contains an electromagnetic exciting winding in the magnetic pipeline area. Wiring marking and designation:

  • P - Pink.
  • F - purple.
  • O - orange.
  • Chb - black and white.
  • KB - brown-white.
  • CHG - black and blue.
  • To - brown.
  • H - black.
  • B - white.

Connection diagram of the VAZ-2101 generator

Structurally, the generator 2101 consists of the following main elements:

  • Rotor - The movable part rotates from the crankshaft of the engine. He has an excitation winding.
  • Stator - fixed part of the generator, also has a winding.
  • Front and back coverswithin which bearings are installed. They are eyelashes for fastening to the engine. In the back cover there is a condenser necessary to cut off the current variable.
  • Semiconductor Bridge - Call "undercover" for similarity. Three pairs of semiconductor power diodes are mounted on a horseshoe-based basis.
  • Pulleywhich is put on the VAZ-2101 generator belt. The belt is a wedge (on modern auto applied multiple).
  • Voltage regulator Installed in the subcontrol space, away from the generator. But still it needs to be considered part of the design.
  • Brushes Mounted inside the generator and transmit supply voltage to the excitation winding (on the rotor).

Diagram of connection of the generator VAZ-2106

Connection diagram of the VAZ-2107 generator

1 - rechargeable battery; 2 - negative diode; 3 - additional diode; 4 - generator; 5 is a positive diode; 6 - stator winding; 7 - voltage regulator; 8 - rotor winding; 9 - condenser for suppressing radio interim; 10 - mounting block; 11 - Battery charge control lamp in the instrument combination; 12 - voltmeter; 13 - ignition relay; 14 - ignition switch.

Diagram of connection of the generator VAZ-2108

The VAZ-2108 generator has a rather massive stator winding, as it uses a large cross section. It is with its help that electricity is generated. The wire is wound uniformly throughout the entire inner surface of the stator in the excavation specifically provided for this purpose in the magnetic circuit. Separately, it is worth talking about the last. The middle part, the generator stator consists of a set of thin metal plates, tightly pressed to each other. Often, the outside they boil so that the bundle does not happen.

Diagram of connection of the generator VAZ-2109

  1. Alternator. Can be installed series 37.3701 or 94.3701.
  2. Negative diode.
  3. Additional diode.
  4. Positive diode.
  5. The control lamp of the generator, it is the same battery discharge lamp.
  6. Combination of devices.
  7. Voltmeter.
  8. Block relay and fuses located in the engine compartment in the compartment between the engine and the car interior.
  9. Additional resistors built into the mounting block of fuses.
  10. Ignition relay.
  11. Egnition lock.
  12. Accumulator battery.
  13. Capacitor.
  14. Rotor winding.
  15. The voltage relay is located in the subcontrol space.

WAZ-2110 Generator Connection Scheme

On VAZ-2110, 2111 and 2112 cars, a 94.3701 generator was installed with a maximum given current 80 amp and voltage \u003d 13.2-14.7 volts.

Create decoding generator Connection Schemes on the Ten:

  1. Battery 12V;
  2. generator 94.3701;
  3. mounting block;
  4. egnition lock;
  5. a battery charge lamp in the instrument combination

How to check the generator with your own hands

How to check the VAZ generator on the example of the model 2109. Type 94.3701 generator, three-phase, with a built-in rectifying unit and electronic voltage regulator, right-hand rotation.

Scheme of generator connections. The voltage for excitation of the generator when the ignition is turned on is summarized to the "D +" regulator output (output "D" of the generator) through the control lamp 4 located in the instrument combination. After starting the engine, the excitation winding is powered by three additional diodes installed on the rectifier generator block. The operation of the generator is controlled by a control lamp in a combination of instruments. When the ignition is turned on, the lamp should be lit, and after starting the engine - to go out if the generator is working. The bright burning of the lamp or the glow of it on the heat floor speaks of faults.

The "minus" of the battery should always be connected with the mass, and the "plus" is to connect to the "B +" clamp of the generator. The erroneous reverse switching on the battery will immediately cause increased current through the generator valves, and they will hurt.

The operation of the generator with disconnected rechargeable batteryth. This will cause short-term overvoltages on the "B +" clamp of the generator that can damage the voltage regulator of the generator and electronic devices In the on-board network of the car.

It is forbidden to test the performance of the generator "on the spark" even a short-term connection of the clamp "B +" generator with a mass. At the same time, a significant current flows through the valves, and they are damaged.

Replacing and removal of the electric generator

The generator on the VAZ car is removed either for full replacement In case of failure or to perform repair work on replacing faulty parts. To perform dismantling, prepare a standard set of tools, it is advisable to drive the car to the observation pit.

  1. Disconnect the battery.
  2. Remove the protective rubber cap from the output "30" and unscrew the nut, remove the wires from the stud.
  3. Disconnect the block with wires from the generator connector.
  4. Weakening the tightening of the fastening of the generator to the adjustment bar, after which
    We raise it up to the stop up to the cylinder block and remove the belt from the pulleys.
  5. Fully unscrew the fastening bolt of the adjustment plank to the cylinder block, after which it turns out the 2 bolt of the lower bracket to the block to the block and remove the generator, pulling it out of the boost space.

Generator

Generator 37.3701

1 - Movered sleeve;
2 - sleeve;
3 - buffer sleeve;
4 - rear lid;
5 - screw fastening of the rectifier block;
6 - rectifier block;
7 - rectifier valve;
8 - condenser;
9 - Rear Rotor Shaft Bearing;
10 - contact rings;
11 - Rotor shaft;
12 - brush connected to the output "in" voltage regulator;
13 - withdrawal "30" to connect consumers;
14 - the output "61" of the generator;
15 - brush connected to the output of the voltage regulator;
16 - withdrawal "in" voltage regulator;
17 - voltage regulator;
18 - alternator fastening stud to a stretch bar;
19 - impeller;
20 - pulley;
21 - pens fastening the bearing;
22 - Stubborn Ring;
23 - Front Rotor Shaft Bearing;
24 - rotor winding;
25 - Pole Rotor Tip;
26 - stator winding;
27 - stator;
28 - front cover.

Generator 9402.3701

1 - casing;
2 - withdrawal "B +" to connect consumers;
3 - condenser;
4 – general conclusion additional diodes (joins the output of the voltage regulator);
5 - holder of positive diodes of the rectifier block;
6 - holder of negative diodes of the rectifier block;
7 is a positive diode;
8 - negative diode;
9 - voltage regulator;
10 - rear lid;
11 - tie screw;
12 - front cover;
13 - stator winding;
14 - Stubborn Ring;
15 - Front Rotor Shaft Bearing;
16 - pulley;
17 - Nut;
18 - Rotor shaft;
19 - conical washer;
20 - washer;
21 - Pole Rotor Tips;
22 - the core of the stator;
23 - sleeve;
24 - rotor winding;
25 - Rear Rotor Shaft Bearing;
26 - Bearing sleeve;
27 - contact rings;
28 - brush holder;
29 - conclusions of the stator winding;
30 - additional diode;
31 - withdrawal "D" (general withdrawal of additional diodes).

Scheme of the compounds of the generator 37.3701 (with the mounting unit 2114-3722010-60)


1 - rechargeable battery;
2 - generator;
3 - mounting block;
4 - additional resistors of 100 ohms, 2 W;
5 - ignition switch;
6 - ignition relay;
7 - a combination of instruments;
8 - Battery discharge control lamp.

Specifications of the generator 37.3701

Specifications of the generator 9402.3701

The stator and the generator covers are pulled by four screws. The rotor shaft rotates in the bearings installed in the covers. The lubricant embedded in the bearings at the factory is designed for the entire service life of the generator. The rear bearing of the generator 9402.3701 is pressed on the rotor shaft and is pressed by the back cover through the plastic sleeve, the front bearing is pressed and is spilled in the front cover and is replaced only with it. His inner clip along with a stubborn ring and a washer clamped with a nut between the pulley and the step on the Rotor shaft. The front bearing of the generator 37.3701 is pulled by four screws between the inner and outer beds and can be replaced separately from the front cover. The rear of the generator 9402.3701 is closed by a plastic casing on the latches.

In the generator stator there is a three-phase winding, made according to the "Star" scheme (phase winding conclusions have a common point). The second ends of the phase windings are connected to a rectifying bridge consisting of six silicon diodes (valves) - three "positive" and three "negative". The valves are pressed into two horseshoe aluminum plates-holders in accordance with polarity (positive and negative - on different plates); On one of the plates there are also three additional diodes through which the generator excitation winding is used after starting the engine. The plates are combined into the rectifier block, fixed on the rear cap of the generator (under the plastic casing of the generator 9402.3701).

The excitation winding is located on the generator rotor, its conclusions are soldered to two copper contact rings on the rotor shaft.

Powered to the excitation winding is supplied through two brushes. Contact Rings of the generator (9402.3701) of a reduced diameter to reduce the circumferential speed of rotation and reduce wear of the brushes. The brush holder is constructively combined with a voltage regulator and is fixed on the rear cap of the generator. The voltage regulator is unbelievable, when it fails to be replaced.

Until 1996, the generator 37.3701, the brush holder and the voltage regulator were individual nodes (the voltage from the "30" terminal of the generator was supplied to the output of the voltage regulator). Now the voltage is applied only to the "B" output (the output "B" is missing). In terms of its characteristics, the new and old voltage regulators are the same and assembly with the brush holder of interchangeable.

To protect the on-board network from the voltage jumps during the operation of the ignition system and reducing the interference with the radio with the conclusions of the "positive" and "negative" valves (between "+" and the "mass" of the generator), a capacitor with a capacity of 2.2 ± 0.04 μF, located on The rectifier unit of the generator 9402.3701 and the rear cap of the generator 37.3701.

When the ignition is turned on, the voltage to the excitation winding of the generator (output "D" of the generator 9402.3701 and "in" generator 37.3701) is supplied through the control lamp in the instrument combination (the lamp is lit) and the resistors connected parallel to it. After starting the engine, the excitation winding is powered by additional diodes of the rectifier block (the test lamp goes out). If, after starting the engine, the lamp is on, it indicates the malfunction of the generator or its chains.

The "minus" of the battery should always be connected to the "mass" of the car, and "plus" - to the "B +" generator 9402.3701 ("30" generator 37.3701). Reverse inclusion will lead to a breakdown of the generator valves.

The generator valves (and other devices in the on-board network of the vehicle with a connected generator) should be checked under a voltage not higher than 15 V, higher voltage (for example, when checking the megohommeter) can cause damage to the valves.

If you need to check the insulation of the high voltage windings, the generator should be removed, and the winding conclusions are disconnected from the rectifier block and the voltage regulator

What is a VAZ 2108 generator and where it is installed, knows every owner of this car. But it is unlikely that everyone can say on what principles it works, as well as list all the main elements from which it consists. It is worth noting that the generator and simple engine direct current Very similar in its design. Not even simply similar, but are identical devices. The only difference is that one produces electricity, and the second - consumes. But there are no differences on this, you need to consider the generator system in more detail to find them all.

Rotor and its winding

It can be said that the base of the generator is its rotor. It has a winding from a copper wire. The rotor winding serves constant pressure From the battery. The principle of operation of any generator set is that the presence of two main components - movement and permanent magnetic field. How can I create as late? Either the installation of powerful magnets or winding wires on the magnetic circuit. The first option disappears immediately, since the cost, for example, the nouriemi magnets that are ideal for this purpose, is too high. The diagram of the VAZ 2108 generator includes winding on the rotor.

Much cheaper and easier turns out to be winding on the magnetic cable magnetic cable. The thing is that when the voltage is applied to such a winding, the magnetic field is generated. And it is the greater, the higher the field strength. Consequently, with an increase in the characteristics of the supply voltage, the field is enhanced. It is worth noting that the copper wire is many times cheaper than the exemplary magnets, and its service life is very high. Electric damage to apply it is almost unrealistic, as well as mechanical. The latter - except for careless handling during repair.

Stator winding

The VAZ 2108 generator has a rather massive stator winding, as it uses a large cross section. It is with its help that electricity is generated. The wire is wound uniformly throughout the entire inner surface of the stator in the excavation specifically provided for this purpose in the magnetic circuit. Separately, it is worth talking about the last. The middle part consists of a set of thin metal plates, tightly pressed to each other. Often, the outside they boil so that the bundle does not happen.

In fact, of course, the stator winding automobile generator Consists of three completely equal parts. The reason in a special method of generating electricity is to obtain a three-phase variable voltage, which will subsequently straighten up. But this process will be discussed below. In other words, the stator is very much like a similar element. asynchronous engine. Even the connection of the windings is made according to such a specific scheme. Connecting the VAZ 2108 generator, and if more precisely, its windings are made according to the "Star" scheme.

Covers and bearings

In the front and back covers that are attached to the stator housing, there are bearings. They are necessary to ensure the normal functioning of the generator. With their help, the rotor rotates freely, but the most important thing is to center it strictly along the axis of rotation. Consequently, the rotor magnetic pipeline does not cling the stator winding during operation. The covers are made of light metal - aluminum, which performs several functions at once.

First, aluminum absorbs and gives warmth. And the VAZ 2108 generator heats up very much during operation. Secondly, aluminum has low weight, which makes it easy to facilitate the entire design. In addition, on the generator, in the front of it, the impeller is mounted. During rotation of the rotor, it produces the air flow that enters the mechanism body. Due to this, additional cooling occurs.

Generator drive

For the drive, the VAZ 2108 generator belt is used. It is worth noting that this car model was made only with carburetor system Injection, so the belt on it was installed wedge-shaped. On newest cars of the ninth and tenth family, fuel system In which injection type, put a slightly different belt. It looks more like that is driven only instead of teeth with inner He has a stream.

Rectaging bridge

It is using this device that an alternating voltage is converted to constant. After all, you know that in the onboard network of the car there is a plus and minus. And some can even say that the VAZ 2108 generator gives 12 volts. True, there will also be someone who can clarify a little, mentioning that on some cars in the onboard network 24 volts. But on the eight, of course, only 12, this is quite enough. So, in the onboard network plus and minus, and at the output of the generator winding three phases. What to do?

For this purpose, a rectifier block is used. It consists of three pairs of semiconductor diodes. It turns out that two diodes straighten each phase coming from the stator winding. And at the output of this device, a constant voltage is obtained after the transformation. Also, the VAZ 2108 generator diagram includes a condenser that makes a cut-off of the entire AC remaining after the rectifier block. But the trouble is in the other - depending on which the rotational speed of the rotor, the voltage at the outlet occurs. How to get rid of it?

Voltage regulator

The problem is delivered, it needs to be solved. And this is easy if you simply stabilize the voltage that the generator rotor winding is powered. The thing is that now, no matter what voltage will be at the output of the power sources - the generator and the battery, only stable is supplied to the excitation winding (rotor). On VAZ 2108 cars, the voltage of the generator is about 12.5-13.8 volts. Consequently, the magnetic field will always be the same, regardless of the rotor speed. And if so, then on the stator winding, the voltage will also be stable.

How to dismantle the generator

To replacing the VAZ 2108 generator passed as quickly as possible, you will need the presence of penetrating lubrication. The reason for its need lies in the lowest attachment. Bolt is located at the engine pallet level. Unfortunately, the car does not always have a dirt shield. And even if he is standing, the moisture and dust fall on threaded connection. Therefore, it should be abundantly treated with penetrating lubricant, after which it is possible to settle at least half an hour. This time is enough to turn the entire rust and dirt on the thread.

If a generator has not been shot for a long time, then it is better to process the same lubricant and an upper nut. After such a small preparation, unscrew the nut completely from the top stud. With the help of precipitated and fetch keys unscrew the lower bolt. It is advisable to spend this job from the bottom of the car, it will be much more convenient. It is possible that the bolt tight will begin to go out. In order to pull it out, you will need to use a bolt or hairpin slightly smaller diameter. Note that all these works should be carried out when the battery is disconnected. All wires that have been connected by the VAZ 2108 generator can also be disconnected.

How to install a new generator

Installation of a new generator is performed in the reverse order. Look carefully at the state of the lower bolt. If there are damage to the thread, it is better to replace it. It will be easier for you to subsequently repair the generator. Special attention When installing, you devote the belt tension. If it is not taut enough, then your battery will be bad. And if you strongly pull the belt, then the bearing is destroyed in the front cover. As a result, you will get an unpleasant whistling when the engine is running. And the reason for this is the appearance of the backlash in the bearing. The installation of the generator on the VAZ 2108 should be made so that even the slightest distortions does not occur.

Conclusion

In conclusion I would like to note that only timely service will ensure normal and stable work generator set. Replacing the voltage regulator, which is combined into one node on the eight with brushes, it is necessary on time. You should not wait for the moment when the power of the rotor winding will disappear due to the complete destruction of the brushes. Only under these conditions, the VAZ 2108 generator will not submit and will always produce a normal charging for the battery.

The repair of the VAZ 2108 generator is carried out in case of its failure when its partial or complete disassembly is required. The generator disassembled to replace the brushes, collector cleaning, impregnation insulating varnish Stator windings or to perform any other minor repairs.

Before proceeding to repair workIt is necessary to remove the generator from the car, how to do it see. Also for repair will need a standard set of tools. With the availability of everything you need can be started:

  • After removing the generator from the car, put it on a pre-prepared clean surface. We turn the fastening nut of the adjustment plank and remove it. Next, it is necessary to remove the mounting bracket, with which the generator is attached to the cylinder block, turn the bolt fastening nut, remove the bolt and remove the bracket. After the plank with the bracket is removed ,.

  • From the reverse side, we remove the capacitor, after unscrewing the nut and disconnecting the capacitor wire from the output "30". We unscrew the screw of the condenser and remove it.

  • Immediately, we turn the screws of the attachment of the brush holder and take it out from its landing place. The voltage regulator is also built into the loader housing, it is not necessary to remove it.

  • Remove the rear cap of the generator, for this we need a puller. We turn over the four screw fastening screws to the stator winding housing and remove the tie bolts. Install the puller and tighten the cover from the anchor shaft.

  • After the rear lid is removed, removed from the tree anchor the spacer sleeve and remove the anchor itself from the stator winding.

  • From the rectifier block, it is necessary to disconnect the conclusions of the stator winding, unscrew the nuts of their mounting. We remove the nuts and remove the fastening bolts. In the bolts will be insulating pads. Now you can remove the stator winding from the generator body. We take it out and remove it aside.

  • Now you need to remove the rectifier block, which is located in the lid of the generator. To remove it, unscrew the "30" output nut. Next to the "30" conclusion is a plastic connector with a plug. The plug must be removed by pre-pressing its retainer with a small flat screwdriver. The retainer is pressed from the inside of the connector, after which the plug push inside the connector will remain on the lid. Remove the rectifier block from the generator cover.

  • To replace the bearing in the generator cover, it is necessary to unscrew the four nuts of the bolts of the internal and outer oil bolts from the outside of the cover, after which, removing the washers, to extract the bearing suitable by diameter the mandrel. Pressing the new to produce the same through the mandrel.

  • Replacing the bearing The anchor shaft is done as well as the puller. Cross the old bearing and press the new one. The effort when pricked must be applied to the outer ring of the bearing.

After the entire generator is disassembled, produce required repair or replace individual elements failed. Check the condition of the generator body for mechanical damage, if necessary, replace all defect details. Build assembly in reverse sequence. This is completed.

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