Malfunction of the he ignition coil of the trimmer for grass symptoms. Assembly device and common…

23rd November 2022

TRAMER REPAIR OF THE TRAMMER for Grace with your own hands

Motokosi is a popular seasonal tool designed to remove unnecessary vegetation in the house site. Like any other technique, these devices periodically break. Repair of a he ignition coil of a trimmer for grass is one of the popular problems characteristic of gasoline cos. The ignition system itself is designed similarly on two- and four-stroke ICEs, so the elimination of the breakdown is almost the same for the tools of different manufacturers, whether it is “luxury”, Huter, Husqvarna or other brand. Ways to restore the performance of the ignition coil or replacing it with a new one. in the material further.

The purpose of the ignition coil is the conversion of rotation energy into a high.voltage discharge and the formation of a spark that ignites the fuel mixture. In the internal combustion engine, this part is called magneto, since in it alternating current is generated from rotation of a constant magnetic rotor or anchor.

Magneto constructively consists of two windings: high and low voltage. The condenser with interrupter contacts are parallel to the latter. Whereas the conclusions of the high.voltage winding are connected to the candle and body. They are both wound on a core between the poles of which a rotating magnet is installed, magnetized longitudinally.

On a note! The whole structure looks like a large coil installed on the P-shaped core.

Checking performance

Before the diagnosis of Magneto, you need to make sure that the problem is actually in this node. To do this, check the entire chain and make sure that there are no other reasons for the breakdown of the trimmer for the grass.

First, you should carefully examine the coil for the presence of cracks and other external defects on the case. Next, you will need to study all the elements and nodes conducting the current and make sure that they are clean.
The next step is the inspection of high.voltage wires. They must be working and reliably attached to the contacts, without traces of rust and with intact insulation.
The next action will be checking the candle cap. As a result of careless actions, the user often tears it off from the high.voltage wire, and then improvises and creates a home.made mount. You need to understand that any poor.quality connection in this place significantly reduces the power of the electric arc of the candle.
Then you should make sure that the candle itself is working. If you refuel a low.quality motorcycle with gasoline, the service life of this part is significantly reduced. In addition, it can be flooded or have a large incapacitance that prevents work. Sometimes the candle even takes up and does not unsc.
Next, you need to inspect the circuit switch. On trimmers and chainsaws of Chinese.made, it very often breaks.

Having performed all these actions and excluding the listed nodes from the list of possible causes of breakdown, you should proceed to check the coil. This can be done with several methods.

The first way to check the ignition coil involves the use of special equipment (stand). At home, it is unavailable. you can find it only in service centers.

Magneto diagnostics by means of a multimeter. a solution that can be implemented on its own if there is such a measuring device. In this case, it is necessary to perform the following.

Enable the resistance mode on the measuring device and set the value of 200 Ohms to test the primary winding.
Connect the electrodes of the multimeter to the “mass” of the magneto and the outgoing contact. If the winding is intact, the resistance will vary from 0.4 to 2 Ohms.
Turn on the 20 kOhm tester to diagnose the secondary winding. In this case, the first probe is connected to the “mass”, and the second is installed in a candle cap. Normal values-at least 4-6 kOhm. If the chain is damaged, then the tester will show infinity, and in the case of close. zero.

Accurate data about what should be the tester’s testimonies during the verification of primary and secondary winding, can be found in the instructions for using a trimmer for grass.

If there is no multimeter, you can check the coil in another way.

Important! You need to carefully check so that the magneto does not burn. For this, it is important not to touch the cylinder by the electrode.

For diagnosis, the following steps need to be carried out:

open the lid with which the cylinder is closed;
remove the cap of the high.voltage wire from the candle without twisting the part itself to maintain compression;
Place a nail without a hat tightly in the cap, it will imitate the central electrode of the candle;
Dielectric material tie the cap with a nail to the cylinder so that the gap between the mmator of the Electrode of the candle and the mass fluctuates from 5.5 to 7 mm (the exact distance for a particular model is recommended to look in the user guide), but the part did not come into contact with the mass;
The starter several times play the start of the engine, holding the ignition button in the on the on position;
If a spark appears, you need to consider what color it is.

The white or bluish powerful spark is normal, and a weak glimpse of an orange or yellow shade reports a breakdown of the coil.

Often the cold magneto creates a powerful spark, but when heated due to a defect in the internal nodes, does not conduct current. After cooling the coil, the lawn mower starts again and mows the grass with a fishing line or knife until the magneto is heated. This is abnormal behavior, so you need to change the coil.

On a note! Similarly, the problem can occur when the candle is heated and cooled, so it is recommended to check the performance of both parts.

Replacement of the ignition coil on the trimmer

Magneto. design and scheme of work

The purpose of the ignition coil is the conversion of rotation energy into a high.voltage discharge and the formation of a spark that ignites the fuel mixture. In the internal combustion engine, this part is called magneto, since in it alternating current is generated from rotation of a constant magnetic rotor or anchor.

On a note! The whole structure looks like a large coil installed on the P-shaped core.

Checking performance

First, you should carefully examine the coil for the presence of cracks and other external defects on the case. Next, you will need to study all the elements and nodes conducting the current and make sure that they are clean.
The next step is the inspection of high.voltage wires. They must be working and reliably attached to the contacts, without traces of rust and with intact insulation.
The next action will be checking the candle cap. As a result of careless actions, the user often tears it off from the high.voltage wire, and then improvises and creates a home.made mount. You need to understand that any poor.quality connection in this place significantly reduces the power of the electric arc of the candle.
Then you should make sure that the candle itself is working. If you refuel a low.quality motorcycle with gasoline, the service life of this part is significantly reduced. In addition, it can be flooded or have a large incapacitance that prevents work. Sometimes the candle even takes up and does not unsc.
Next, you need to inspect the circuit switch. On trimmers and chainsaws of Chinese.made, it very often breaks.

Having performed all these actions and excluding the listed nodes from the list of possible causes of breakdown, you should proceed to check the coil. This can be done with several methods.

Method 1

The first way to check the ignition coil involves the use of special equipment (stand). At home, it is unavailable. you can find it only in service centers.

Method 2

Magneto diagnostics by means of a multimeter. a solution that can be implemented on its own if there is such a measuring device. In this case, it is necessary to perform the following.

Enable the resistance mode on the measuring device and set the value of 200 Ohms to test the primary winding.
Connect the electrodes of the multimeter to the “mass” of the magneto and the outgoing contact. If the winding is intact, the resistance will vary from 0.4 to 2 Ohms.
Turn on the 20 kOhm tester to diagnose the secondary winding. In this case, the first probe is connected to the “mass”, and the second is installed in a candle cap. Normal values-at least 4-6 kOhm. If the chain is damaged, then the tester will show infinity, and in the case of close. zero.

Accurate data about what should be the tester’s testimonies during the verification of primary and secondary winding, can be found in the instructions for using a trimmer for grass.

Method 3

If there is no multimeter, you can check the coil in another way.

Important! You need to carefully check so that the magneto does not burn. For this, it is important not to touch the cylinder by the electrode.

For diagnosis, the following steps need to be carried out:

open the lid with which the cylinder is closed;
remove the cap of the high.voltage wire from the candle without twisting the part itself to maintain compression;
Place a nail without a hat tightly in the cap, it will imitate the central electrode of the candle;
Dielectric material tie the cap with a nail to the cylinder so that the gap between the mmator of the Electrode of the candle and the mass fluctuates from 5.5 to 7 mm (the exact distance for a particular model is recommended to look in the user guide), but the part did not come into contact with the mass;
The starter several times play the start of the engine, holding the ignition button in the on the on position;
If a spark appears, you need to consider what color it is.

The white or bluish powerful spark is normal, and a weak glimpse of an orange or yellow shade reports a breakdown of the coil.

On a note! Similarly, the problem can occur when the candle is heated and cooled, so it is recommended to check the performance of both parts.

Typical problems. reasons

Malfunctions, most often happening to Magneto, are typical of trimmers of different manufacturers. As a rule, this is a weak spark or its absence, as well as the presence of interruptions in this process.

Do.it.yourself trimmers repair. TRAMER REPAIR OF THE TRAMMER for Grace with your own hands

The ignition coil of the trimmer for the grass. malfunctions and repair

Magneto. design and scheme of work

On a note! The whole structure looks like a large coil installed on the P-shaped core.

Checking performance

First, you should carefully examine the coil for the presence of cracks and other external defects on the case. Next, you will need to study all the elements and nodes conducting the current and make sure that they are clean.
The next step is the inspection of high.voltage wires. They must be working and reliably attached to the contacts, without traces of rust and with intact insulation.
The next action will be checking the candle cap. As a result of careless actions, the user often tears it off from the high.voltage wire, and then improvises and creates a home.made mount. You need to understand that any poor.quality connection in this place significantly reduces the power of the electric arc of the candle.
Then you should make sure that the candle itself is working. If you refuel a low.quality motorcycle with gasoline, the service life of this part is significantly reduced. In addition, it can be flooded or have a large incapacitance that prevents work. Sometimes the candle even takes up and does not unsc.
Next, you need to inspect the circuit switch. On trimmers and chainsaws of Chinese.made, it very often breaks.

Repair of the bar motorcosa. The design of the lawn mower

Trimmer for grass consists of three parts: a gasoline engine, a rod with a shaft inside and cutting element. Twisting the moment through the shaft is transmitted from the motor to the cutting head. In trimmers with a curved bar, the roller is played by the cable. The bar itself is attached to the gearbox of the gasoline engine. The rod is located on the rod, the belt can also be attached to convenient use of the trimmer for the grass. The cutting element in the benzo.ceremony uses a trimmer fishing line wound on a trimmer head or a special knife used to cut large weeds.

The main and most difficult aggregate in the trimmer is the engine. In domestic and semi-professional motorcycles, two types of engines are used-2 or 4 strokes. Depending on the type of benzomotor. its refueling and maintenance differs.

2 strokes do not have their own lubrication system, so they work not on clean gasoline, but on a mixture of gasoline and oil. The latter, getting into the fire chamber, lubricates the moving components of the engine.
4 stroke engines are lubricated with oil in the crankcase. They work on pure gasoline without impurities.

Do.it.yourself repair of the lawn mower and the maintenance of a trimmer for grass can be carried out without third.party assistance. If you need to replace the spare parts of the motor or its setting, then you need to contact the repair workshop.

The first launch at the beginning of the season

Late in the spring, when the active use of benzocosyles begins, before starting work, you need to examine and verification for the performance of your tool. Be sure to lubricate the spinning details, inspect and, if necessary, replace the cutting elements (knife or fishing line for a trimmer). Check the presence of fuel mixture in the tank. If you drained fuel at the end of the previous season, do not forget to download fuel into the motor using a suction (if it is in the engine).

If you first use a trimmer, be sure to read the operating instructions. Such an instruction should be attached for each lawn mower.

The launch of most two.stroke engines is quite simple. Use the procedure described in the instructions of your trimmer for grass, if it differs from the following:

Why is the ignition adjustment

In some cases, when the engine does not start, the ignition adjustment will be required. Of course, first you need to check the serviceability of a candle and a high.voltage cable with a cap.

It is necessary to adjust the ignition on a two.stroke engine in order to ensure timely ignition of fuel in the engine combustion chamber. Below is a scheme from which you can understand the principle of operation of the internal combustion engine.

The spark in the candle should appear at the time of compression of the fuel with a piston, when it does not reach the upper dead point (VMT) at least a little. Когда поршень проходит ВМТ, происходит возгорание топливной смеси, в результате чего поршень под действием энергии взрыва уходит вниз.

Therefore, if for some reason (mainly this is due to the shift of the flywheel to the shaft relative to its original position), the fuel fire occurs earlier than the piston passes, then it returns back, and the crankshaft scrolls in the opposite direction. Such a movement can damage the starter knot, cut off the launch cord, etc.D. In this case, an early ignition of fuel occurs.

There may also be a later ignition on the trimmer: the piston after compression of the fuel, which does not ignite, goes down, and at that moment a spark appears. In this case, the engine will either not start or significantly lose power and will be poorly gaining momentum.

But such problems with early or late ignition on two.stroke ICE are quite rare, since the flywheel with magnets is already established in the correct position, which is perfectly synchronized with the movement of the piston. In addition, the flywheel is fixed on the shaft using a key and nut. Therefore, the wrong installation of the part is excluded.

How to choose a trimmer for the head of the head?

So that the head of the mower is highly efficient, the owner of the bushore should approach it correctly. In this case, several factors should be taken into account:

An experience. If the buyer. Novice gardener, it is best to buy an automatic coil. Semi.automatic and manual coils are best suited for more experienced gardeners;
Material. The reliability of the coil depends on this. They are considered the most durable metal models, but they weigh much more than standard plastic devices. When working with a metal coil, the braid engine is under a large load, so you only need to buy them to work with a powerful brush;
The diameter of the used mowing fishing line. For medium power trimmers, coils are used, which can be tightened with a wire thickness of not more than 1.6 mm. lawn mower with a capacity of more than 2.5 liters. FROM. Lamps can be installed that can be delayed using a cutting cord with a thickness of more than 2 mm.

An important role in choosing a coil is also played by the simplicity of its design. For beginners, coils consisting of a minimum of parts are best suited. experienced gardeners can use heads with a large number of elements in their design.

TOP 3 most reliable drums for home use

The market has a rating of the most durable mowing heads. They are distinguished by the simplicity of the device, reliability and resistance to damage. These include:

3rd place. Bosch K-103. This is a universal coil weighing about 300 g. Most often used to equip Makita and Hyundai motolers. The model is characterized by low energy consumption, impact resistance and durability. The core and its other parts are made of forged steel, and the case. From plastic;

2nd place. Flymo 15. This semi.automatic model of a trimmer for grass is equipped with a thin cup, which increases the flow rate. Nevertheless, he worked perfectly when he mowed grass in rocky terrain. To work with it, you need to use only a thin fishing line for a trimmer;

1st place. EFCO 8100. This model is one of the most reliable mowing heads. It works in fully automatic mode, which facilitates its filling with a cut cord. Only thin hair is used to work coil. The model of the model is made of durable multilayer plastic.

Despite stability and durability, all these coils are much cheaper than other analogues of lower quality, which makes them leaders in the post.Soviet market.

Inflammation of the trimmer for grass is one of the important elements of the gasoline braid system, which causes the appearance of an electric spark that lights the fuel and sets in motion the entire mechanism. This module gives a kind of impetus. The entire system consists of direct ignition (or magnet) and flywheel. The last element of the gas trimmer for grass is the aluminum part, it also acts as a fan. This has blades that overtake the air flow. Part cools the engine. Two plastic “dogs” with springs designed to adapt to a manual starter are installed.

Choose a ignition of gasoline spots together with specialists

The ignition coil on the uterus of different models, brands, as well as the entire magnetic complex, including wires and accessories, will differ from each other. For example, a detail intended for Shtil braid is not necessarily suitable for Oleo-Mac, but it is better to choose the original spare parts, most of which are in our catalog.

So, we are interested in many buyers of the gas braid for grass, we offer to choose, guided by the following parameters:

Spare parts of black cutters can be divided into basic and auxiliary. One way or another, the magnet or ignition coil is rightfully considered an element that requires immediate replacement for a tool breakdown. Our experts will help you buy any of the existing models for modern trimmers, and also describe the step.by.step installation of a new part.

Remove the plastic case and left, above the bar, we will see the ignition module.
The system malfunction can be diagnosed, even if the replacement of the new candle did not change the situation and there was no spark. There are times when the spark is lit or goes out, but the ignition is faulty. In the second case, the device may start, and after a few seconds it will overheat and will no longer work.
Loosen 2 screws that fasten the module. Outwardly, its destruction may consist in the departure of the elements of part among themselves, tears, tears, tears.
Before installing a new ignition, turn the flywheel so that its metal elements look up and you can see them.
We install the tool over the flywheel to keep the gap between the new coil and the flywheel, but at home you can use the usual calendar, business card or A4 sheet, folded four times.
Next, install a new ignition, fastening it in place.
After we firmly corrected it, we remove the “calendar”, connect the wires and put the candle. We are trying to do.

The most common system malfunctions and their elimination

Consider the most common breakdowns associated with the ignition system of the chainsaw.

Feature or humidity of the candle

In the absence of ignition, there is no opportunity to start a chainsaw motor. When examining the system, we see that a black feld was formed on the candle. This indicates that a malfunction should be sought in the work of a carburetor, a piston group or reconsider the ratio of refueling oil and gasoline.

If the candle is wet, this speaks of the redundancy of fuel. Check all hoses to tightness, change those that have holes and cracks. Peel the candle from the carbon fiber, dry. Try to start the engine.

If the candle is dry, it was not thrown by technical liquid, check the presence of a spark. To do this, unscrew the candle, put on a high.voltage ignition cable on it and press to the motor body. After that, sharply start the starter. If there is no spark, change the candle and repeat everything first. A spark appeared. start the engine!

BB wire cliff

If the new candle also did not give a spark, it is necessary to test the wire. To check the integrity of the wiring, it is best to use a special tester. a multimeter, which was talked about at the beginning of the article.

The cliff of the chain in the coil, you can see checking it with a multimeter in resistance mode, the meaning will strive for infinity.

Large gap between the ignition module and the flywheel magnet

In the case of the resulting large gap in the coil, it is necessary to independently set the value by using the algorithm above the above.

Why the lawn mower is not started? Diagnosis of trimmer faults for grass

In this video clip, we will try to make out the main malfunctions that occur during the operation of the motorcycle.

Lawnmower Coil Pack Sparking System. Induction Coil, Transistor, Electrical System Works!

After several jerks, he will start and stall, which is a common occurrence. Putting the damper to the working position, start the tool again and start working.

There are not only situations when trimmers for grass gasoline

do not start, but cases when after starting they work for a couple of seconds and they stall here. Inspect the spark plug again: if it is “thrown”, while this situation is repeated even after wiping it and drying, run to the “audit” of the air filter.

Most likely, he is quite naked and needs to be replaced. If everything is fine with the filter, it may be so that the ignition coil has failed.

In the case when trimmers for grass are gasoline

do not start, but you have done all of the above, maybe the muffler may be clogged. It must be dismantled, burned on a burner, after which the whole fog can just be shaken out.

And again the carburetor.

Well, even if after such bullying your trimmer does not start for the grass, you can’t do without disassembling the carburetor for you. It may well be that everything is guilty in the needle in it. In any case, the disassembly and washing of this capricious mechanism certainly will not hurt. Adjustment of the lawn mower carburetor can be adjusted with your own hands, like the entire benzo tool for the garden, is not difficult to maintain equipment. Repair, configure without the help of others you can and necessary. For example, adjusting the carburetor of the lawn mower with your own hands. it is 5 minutes. The carburetor from the lawn mower is a node in the power supply system. Idle…

Many trimmers’ owners are faced with inconsistency when the device simply does not start.

Simple Trick To Diagnose A Bad Ignition Module (Coil) On A Lawnmower, Chainsaw, Weedeater Etc.

One of the circumstances of this may be the lack of a spark

This usually happens when the fuel floods the light of the ignition. In addition, you need to check the candles for serviceability, as this can also lead to a lack of spark.

The first sign of a faulty candle is the presence of a short circuit between its contacts, and in short. there is no spark on the trimmer.

In addition, the candle is considered faulty if it is covered with a black wet layer.

Such a layer appears from the oil combustion chamber. In such a situation, you have two exits: either clean the candle as it should, or buy a new.

Diagnosis of malfunctions

, Why the lawn mower will absorb. can be systematized by the specifics of the work of individual nodes. The service center is systematized:

Motor malfunction (piston wear, bearing malfunction, crankcase crack);
Fuel consistency supply malfunction. clogged pores of air filtralibo malfunction of the carburetor;
the ignition system does not work;
A malfunction of a mechanical disposition. a leak of hoses, broken wires under a braid, rupture of the tubes.

The user first needs to check if there is a fuel in the tank. Starting in agreement with annotation, putting the saw on the side. Gasoline trimmer for grass; starts without problems. May not start. Set the air damper to the position “Closed”, pump up fuel, turn on the ignition and produce 3-4 sharp jerks by the starter. If the engine has earned, open the air damper. The lawn mower is not started

The lawn mower cannot work for a long time. Gearbox and engine will overheat. Mowing less than 15 = 20 minutes, taking a five.minute break. In hot noon, the operating time is reduced by half. When mowing weeds, sedgers, the working hours are required to reduce.

If you are unsuccessful, we begin to find the reason for the refusal:

check the quality of fuel;
make sure the operability of the candle and the cleanliness of the candle canal;
check the cleanliness of the air filter;
Make sure that the fuel filter is not clogged;
Check the cleanliness of the bastard;
Clean the exhaust channel.

complex reasons will be detected in the diagnosis of a malfunction, leading to the overhaul of the carburetor. Such reasons include clogging of the internal channels of the carburetor, wear on it gaskets and violation of the tightness of internal halls with a vacuum loss. The causes of gasoline breakdowns and why the gasoline trimmer for grass is not that the internal combustion engine does not start. DIY lawn mowing repair, if it does not start, will require patience.

Elimination of the reasons why the lawn mower is not started

The fuel mixture should be prepared with accurate observance of gasoline and oil proportions. In this case, you cannot use another brand of fuel. To exclude dirt, gasoline should stand in a glass or metal dish 2 days. Cannot be used for storage of fuel plastic dishes. Distribute the oil with a medical syringe without a needle. Use only a freshly prepared mixture, without leaving an unexplored fuel in a tank. If the engine is capricious, the lawn mower stalls, when you press gas, it may be guilty of fuel.

Malfunctions that can be eliminated independently

When your gasoline law mower does not start. First of all, it is necessary to check the presence of fuel in the tank. If it is absent, share it to the desired level. Often, when the device is not used for a long time, gasoline is “exhausted”, so it must be completely drained and seasoned with new. A similar procedure must be done carefully so that the fuel does not get to the engine, since this can lead to the fuse in the future (when the engine is heated). Which gasoline is better to use, you can learn from the technical passport of the device.

In order for the unit to start, you need to pump up a combustible primer (if it is in this model) in the carburetor and set maximum speed. You need to start equipment gently. The starter cord must be pulled smoothly until it stops, after which to pull on yourself with one even sharp movement.

A problem may occur with the improper location of the air damper during the first launch. Depending on the air temperature, it is completely closed or set to the middle position (above 30 s). Then it must be completely opened.

Check the air filter, if it is polluted. To do this, turn off the device and disconnect the wire from the spark plug. Unscrew the lid and remove the filter. Rinse it with gasoline and dry thoroughly or just put a new. Remember that changing the air filter is recommended after every 25 hours of operation.

Another reason why the gasoline lawn mower is not started, there may be a faulty spark plug. Perhaps she was just flooded with fuel. In this case, unscrew it, clean it and check the presence of a spark. It may be absent with a candle with fuel. Install the control handle of the air damper (if available) to the “closed” position and start the engine. If this did not help, it is better to seek help from a specialist.

The main thing in the use of any garden equipment (and technology as a whole) is compliance with all operational requirements, as well as timely maintenance. Only under such conditions, a gasoline lawn mower will work properly and for a long time. However, unforeseen situations nevertheless happen, and on one “wonderful” day the device may stop starting up. Today we will find out why this is happening and how to eliminate this kind of problem.

A Chinese lawn mower is not started.It is interesting.

Spare parts for Chinese motorcycle do not start Chinese

In the case when there is no spark on the trimmer, how to solve the problem you will be told by professionals for a hundred.

Sometimes, the problem can be with magneto. Magneto may become unusable due to the fact that you could pull the starter cord at the moment when the ignition was turned off, and the candle was not grounded for the mass.

Such actions can easily disable magneto. In such a situation, the only way out is to buy a new magneto.

Typical problems. reasons

Unstable sparking

If Magneto gives a spark with interruptions, you must first check the contacts. They could burn or get sick. The detected carcass is cleaned with a file, and the oil is rubbed with suede previously soaked in gasoline. The second possible cause of the problem is the adjustment of the clearance between the contacts. To eliminate it, you need to set the right distance.

If the spark appears with interruptions, this may also mean that the pillow of the interrupt lever is worn out. To eliminate the malfunction, it is necessary to change the lever for the new. In addition, the clearance should be adjusted, as with another possible reason for the breakdown. the alcohol of the album.

The breakdown of the capacitor can also be the culprit of interruptions in the formation of a spark. In such a situation, it requires replacing the damaged part, since it is impossible to repair and re.charge it.

Lack of sparking

If Magneto does not give a spark at all, the main reason is to break off one of the transformer chains (primary or secondary). To fix the lawnical mower, a faulty part should be replaced. If the primary chain to the mass is closed, this can also cause a lack of a spark. It is necessary to eliminate it to correct the problem.

On a note! The punched insulation of the high.voltage wire can also cause breakdown. You can fix the situation by replacing the wiring.

Insufficient sparking

A weak spark on Magneto is caused by a damaged capacitor. To eliminate the breakdown, it is necessary to replace the failed part.

Types and features of the design of the ignition coils

The ignition coil called the module is present in all modern ignition systems: contact, contactless and electronic. Its purpose is to convert a low.voltage onboard current coming from a car battery to a high.voltage. High voltage causes a spark on the electrodes of candles, which ignites the fuel-air mixture (TVS).

In general, the coil is a transformer with two windings.

Three types are distinguished depending on the features of the design:

All three types have a similar design, there are only some differences. Therefore, finding out how to check the ignition coil, you can apply this knowledge for all types. You can make a device for checking with your own hands (author of the video auto.electrician RF).

The design of the classic module includes the primary winding, inside which there is a secondary. Each of the windings has two conclusions. The primary power supply is supplied to the primary. On the secondary one, one conclusion is high.voltage and is considered the weekend, and the second is connected to the primary winding. The entire structure is placed in a sealed case, on the cover of which all conclusions are displayed.

The double module has two cores. One is internal, is in the winding, the second is external, located above the windings. If the classic coil has only one conclusion for high voltage, then two of them have two. They produce a spark for two cylinders simultaneously.

An individual coil is put on a separate candle. The main part of the module consists of turns of copper wire, taking the primary voltage and secondary circuit converting the incoming current. The winding, which is primary, is located inside the secondary converter and has a core, which is located inside it. The high voltage, which is produced in the secondary winding, is directly transmitted to the candle with the help of a tip, a clamping spring and an insulator. A high.voltage diode is intended to cut off the current.

All types of modules are characterized by resistance, which differs for different models of the mechanism. If the resistance value differs from the nominal, this indicates a malfunction of the device.

Engine problems can occur due to a power malfunction. If there is a break in the windings or closing, this removes the power unit from the working condition. All types of modules do not understand, so it is impossible to repair them. In order to make sure that the device is subject to replacement, you need to know how to check the ignition coil.

You can most accurately check the performance of the device using special equipment that is equipped with maintenance stations, such as an oscilloscope. There are two ways to check the serviceability of the ignition coil with your own hands at home.

Using a multimeter when checking a coil

In order to independently get a complete picture of the serviceability of the element of the ignition system, you need to figure out how to check the ignition coil with a multimeter. This procedure should not cause special difficulties.

First, the primary winding is checked, to the positive and negative contacts of which the device is connected in the resistance measurement mode. Standard factory indicators of different manufacturers may differ slightly from each other, but the average resistance values should be in the range from 0.4 to 2.0 Ohms. If the device shows zero resistance, then a short circuit has occurred in the coil, if infinity, you need to look for a chain break.

Checking the ignition coil using a tester

To check the secondary winding, the multimeter is connected to a positive contact of the coil and output from the high voltage wires. The resistance value of this winding in coils having a plate core is 6-8 kOhm, in other types-the parameter may exceed the value of 15 kOhm.

To draw a conclusion about whether the obtained indicators are within the norms established for a particular model, only having an idea and other technical characteristics: the duration and energy of the sparking discharge, the spark discharge current and the inductance of the primary winding.

Any malfunctioning of the ignition coil does not affect the efficiency of the car engine, and this can lead to a decrease in its durability. That is why its timely diagnosis and repair (or replacement) is necessary, if necessary.

Visual testing method

The strength of the visual testing method (known as the “siring verification” method) is the simplicity of implementation. It does not require any devices and is performed even on the road. The main disadvantages are reasonably considered low accuracy, great labor intensity, and the risks of electric shock.

For this method, a serviceable candle and plugs will be required, you may need a end candle key.

It is advisable to start work no earlier than a quarter of an hour after turning off the engine so that it can cool down.

First, the wire of the first candle is removed, the control candle is connected to it. Holding the candle with pliers by the insulator, we touch the threaded part of the skirt of the unmistered metal section of the engine body. With a working engine and a good coil between the electrode and the body, an intense spark of purple. To minimize risks, you can not run the engine, but turn on the starter for a couple of seconds.

The conclusion about the reel malfunction is made if the spark is weak or has a pronounced yellowish tint. The lack of a spark speaks of the reel refusal or the complete absence of contact.

If there are several coils in the engine, the control procedure is performed for each of them.

If there is no spare, good candle, a candle is attracted as a visual indicator, which is removed from one of the engine cylinders.

A several kilovols voltage is supplied to the candles

Taking into account this feature when addressing the visual control method in any form of its implementation, keep care and do not touch the unprotected parts of the body of the unmalous parts of the on.board wiring

Sources:

https://kakdoma154.ru/dlya-chistoty-i-poryadka/remont-katushki-trimmera-svoimi-rukami.html
https://veloelektro.ru/zamena-katushki-zazhiganiya-na-trimmere.html
https://labequip.ru/kak-pomenat-katusku-zazigania-na-trimmere/
https://labequip.ru/kak-proverit-katusku-zazigania-na-trimmere/
https://geoklad.ru/infocentr/kak-proverit-katushku-zazhiganiya-na-trimmere-multimetrom.html
https://tool-and-tools.ru/dlya-svarki/kak-proverit-katushku-na-trimmer.html
https://tehnostroiplus.ru/elektroinstrumenty/kak-proverit-katushku-na-trimmer.html
https://drillzone.ru/elektrika/katushka-zazhiganiya-dlya-trimmera.html
https://labequip.ru/proverka-katuski-zazigania-multimetrom-gas trimmer/

Grass Trimmer coil, ignition, malfunction, trimmer