Replacing Magneto on the trimmer Stihl. Proper care for the chainsaw

How to properly set the ignition on the trimmer: adjusting the clearance between Magneto and the flywheel

Many trimmers owners are faced with a problem when the device simply does not start.

One of the reasons for 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.

Sometimes it happens that the candles are clean, but at the same time, the problem can be in its isolation, which is often covered with a black dry soot.

The reason for this may be a weak spark, excessively low spark plug, low fuel quality, dirty air filter or prolonged work at idle.

Here the output is the same. clean the candle or replace it with a new. over, the candle should be replaced if the contacts are strongly worn out.

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.

In addition, the problem may be the ignition node. This option can be considered if the candle and wire do not have any malfunctions.

In such a situation, it is necessary to engage in the replacement of the ignition unit. It can be found attached using two screws to the engine cylinder.

To obtain free access to the node, it is necessary to remove the enclosing casing.

To correct the current situation, you will have to replace the entire node, because, as practice has shown, replacing individual parts gives insufficient result.

If there is no spark on the trimmer, it can only be fixed in one way. replace it.

over, sometimes the problem should be sought in the ignition coil. The absence of a spark can lead to the failure of the coil or a malfunction in the chain.

To check the flow of current into the primary winding of the coil, you can use the light bulb, which must be turned on instead of the coil.

Then you need to carefully examine the contacts of the interrupter. If a strong spark occurs at the time of opening between the contacts, you can be sure that the capacitor is broken.

In this case, you have only one option of further actions. replacing the capacitor.

These are the main reasons why there may be no spark on the trimmer.

Ignition adjustment algorithm

The ignition on the trimmer is adjusted quite simply.

Remove the casing from the engine by unscrewing all the bolts holding it. For example, on the Patriot gas.cave (Patriot) PT 2540, to remove the casing, you need to unscrew the air filter housing, and remove it with a flat screwdriver from the latches. After that, the plastic case will easily remove.

• Unscrew 2 bolts using a screwdriver (it is not required to be completely twisted), holding the magneto.
• Turn the flywheel so that the magnets are upstairs.

The gap between the ignition coil and the flywheel: what distance

ICE engines are installed not only on cars or motorcycles. They are widely used in various tools, for example, such as chainsaw or trimmer for grass. In case of their malfunction, poor start, it is often enough to install the correct gap between the flywheel and the ignition coil.

About the chainsaw and its inoperability

Chainsaw. installation in itself is not so complicated. But having the smallest initial knowledge is extremely important to find and eliminate any defect.

Modern electronics were so progressed that it also revolutioned in the world of tools. The saws of our days are light and powerful at the same time, equipped with electronic ignition systems of the ESZ.

Not so long ago, the ignition systems drank cam. This carried a lot of shortcomings: severity, complexity, high cost and much more. And the most important drawback of the archaic ignition system is the difficulty of the plant. Some of the systems of models of saws could not work out a spark sufficient for the outbreak at the speed of rotation of the crankshaft.

Modern systems are almost reliable. The models saw light and strong, the coil is made more professionally and serves its term almost without fail. However, there are also problems, but in most cases they can be fixed on their own.

Consider the main types of chainsaw malfunctions associated with the flywheel and ignition system.

As a rule, the most common ailment of modern chainsaws, implies the lack of a supply spark. The same directly depends on the shift of the lumen (clearance) between Babina and the flywheel.

Common malfunctions of installations are always connected with ICE. Problems arise in the system of ignition of fuel, the fuel flow module, in the internal elements of the engine itself.

As for the other nodes of the chainsaw, the malfunctions there, as a rule, due to the failures of the brake mechanism, poor lubrication, etc.D.

If the difficulties of starting are associated with the engine, then the symptoms are most often observed:

Ignition module

The inoperability of SZ chainsaws is the most common reason due to which the engine engine does not start. In most cases, it is recommended to start searching for a problem from here.

The ignition module of the chainsaw

• First of all, thoroughly check the spark plug, gently throwing the armored wire from the head and twisting the candle from the nest using a special key;
• The second is a check of the sparking using the starter twitching with a cap of the armor pipeline on a candle;
• Checking the gap is the main theme of our article (more below).

So, the malfunction of the spark plug will clearly be evidenced by its sputum. A wet spark device for ignition of the fuel-air mixture suggests that the fuel is an excess of fuel, the carburetor is incorrectly configured or there are malfunctions in SZ.

The candle is checked only after drying. T.e., It must be carefully cleaned with a napkin, drain the insides of the internal combustion engine, clog the feed, and then start a couple of times a starter so that the excess of the combustible mixture comes out.

Then the spark device is put in place, and everything is checked again.

In general, the spark device can tell a lot about the entire ignition system. If a black fog is observed on the candle, this indicates violations in the communications of the gasoline mixture. Here, either the ratio of gasoline and oil was violated, or the carburetor is required to reconfigure. In some cases, this happens due to poor.quality oil.

A dirty candle is cleaned of a black carbon fiber with a needle or any other sharp object. Then, the electrode is cleaned with sandpaper (zero), until a metallic shine appears. The spark device is returned to the place, everything is checked again.

Next stage: checking sparking. The skirt of the spark device is brought to the cylinder, the starter starts. If a bluish spark slips at a distance of 2-3 mm, everything is fine. The sparking distance of 0.5-1 mm is already considered as a malfunction. There may not be sparks at all, and this is also a big problem. Perhaps this is the case of a cliff of the wire.

And so we approached the topic of our article. The chainsaw may not be launched due to a violation of the gap between the ignition and the Magneto flywheel. This very gap should be within 0.2 mm. It is checked very simply: a special gasket is placed between the flywheel and Babina. If it comes normally, not too free and tight, then the gap is normal.

The flywheel himself drank is round, and checking the gap with an ordinary probe is impossible. It would be more qualified to put a gap according to a special show, but it is not always possible to purchase. Yes, and not everyone can afford to buy a template that is not cheap.

Gap between Magneto and the flywheel

However, in return for the foreign template, you can use a cut strip from a plastic container per 1-2 liters from under the juice.

How to check the magneto chainsaw

Magneto, Babina, module. this is the ignition coil. She may absolutely not have to do with the malfunctions of the tool, and the reason to hide only in the gap or in another. But in some cases, it is she who becomes a factor of violation.

To check the Babin itself, you should also, as in the above case, use the exclusion of components from the chain. Or in other words:

• evaluate the state of the Babin case visually for the presence of cracks and other visible defects;
• check the purity of current.compromises of various nodes and elements;
• diagnose the isolation and serviceability of the armored wiring, the reliability of fixing the fasteners, the absence of rust, etc.P;
• evaluate visually the condition of the cap of the spark device;
• check of the serviceability of the candle;
• Diagnosis of the circuit switch, which is especially relevant for Chinese.made chainsaws.

Again, as in the above case, certain points are excluded from this chain, thereby there is the reason for the problem.

No spark on the trimmer |

Many trimmers owners are faced with a problem when the device simply does not start. One of the reasons for 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. 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. Sometimes it happens that the candles are clean, but at the same time, the problem can be in its isolation, which is often covered with a black dry soot. The reason for this may be a weak spark, excessively low spark plug, low fuel quality, dirty air filter or prolonged work at idle. Here the output is the same. clean the candle or replace it with a new. over, the candle should be replaced if the contacts are strongly worn out.

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.

In addition, the problem may be the ignition node. This option can be considered if the candle and wire do not have any malfunctions. In such a situation, it is necessary to engage in the replacement of the ignition unit. It can be found attached using two screws to the engine cylinder. To obtain free access to the node, it is necessary to remove the enclosing casing. To correct the current situation, you will have to replace the entire node, because, as practice has shown, replacing individual parts gives insufficient result. If there is no spark on the trimmer, it can only be fixed in one way. replace it.

over, sometimes the problem should be sought in the ignition coil. The absence of a spark can lead to the failure of the coil or a malfunction in the chain. To check the flow of current into the primary winding of the coil, you can use the light bulb, which must be turned on instead of the coil. Then you need to carefully examine the contacts of the interrupter. If a strong spark occurs at the time of opening between the contacts, you can be sure that the capacitor is broken. In this case, you have only one option of further actions. replacing the capacitor.

These are the main reasons why there may be no spark on the trimmer.

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.

Basically, the ignition adjustment is to set the correct clearance between Magneto and the flywheel.

No spark on the trimmer |

Many trimmers owners are faced with a problem when the device simply does not start. One of the reasons for 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. Sometimes it happens that the candles are clean, but at the same time, the problem can be in its isolation, which is often covered with a black dry soot. The reason for this may be a weak spark, excessively low spark plug, low fuel quality, dirty air filter or prolonged work at idle. Here the output is the same. clean the candle or replace it with a new. over, the candle should be replaced if the contacts are strongly worn out.

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.

In addition, the problem may be the ignition node. This option can be considered if the candle and wire do not have any malfunctions. In such a situation, it is necessary to engage in the replacement of the ignition unit. It can be found attached using two screws to the engine cylinder. To obtain free access to the node, it is necessary to remove the enclosing casing. To correct the current situation, you will have to replace the entire node, because, as practice has shown, replacing individual parts gives insufficient result. If there is no spark on the trimmer, it can only be fixed in one way. replace it.

over, sometimes the problem should be sought in the ignition coil. The absence of a spark can lead to the failure of the coil or a malfunction in the chain. To check the flow of current into the primary winding of the coil, you can use the light bulb, which must be turned on instead of the coil. Then you need to carefully examine the contacts of the interrupter. If a strong spark occurs at the time of opening between the contacts, you can be sure that the capacitor is broken. In this case, you have only one option of further actions. replacing the capacitor.

These are the main reasons why there may be no spark on the trimmer.

The main thing is the fuel mixture!

do not start after they are trying to “put them into operation” after a long storage. Troubles with starting in this case are often justified by the incorrect actions of the user.

If you are faced specifically with this phenomenon, then when you cool, you need to close the damper, then pump up a small amount of fuel consistency in the carburetor. After disassembling and assembling the Husqvarna 142 saw, a spark was missing on the spark plug. What to do. Then stretch the launch hand to a sense of resistance, then make a trimmer for the grass with sharp and energetic movements.

Ignition on the trimmer. the principle of operation and possible malfunctions

If the owner of the lawn mower wants to establish the operation of the ignition system on his own, he should understand the principle of operation of this unit. In the internal combustion engine, it consists of a flywheel and magneto (coils). In turn, the flywheel includes a impeller that performs the function of cooling the motor and a number of permanent magnets.

Operating principle

When the flywheel rotates, an electric current is generated in Magneto, which creates a spark on the spark plug at the moment when magnets pass under the coil.

Typical malfunctions

Before starting the ignition of the trimmer for the grass, you need to cut off other probable causes of breakdown and make sure that the problem is really in this node. For this, it is necessary to carry out a number of actions in the following sequence:

• inspect the ignition coil body for damage and defects;
• make sure that there are no pollution on all nodes and elements conducting current;
• check the integrity and isolation of the wiring, contacts, the strength of the fastening, the presence of rust at the joints;
• inspect the candle cap, as it regularly breaks away from the high.voltage wire, and they try to restore it manually, and any unreliable connection lowers the power of the electric arc of the candle;
• check the candle, since the quality of modern gasoline very quickly disables this part, but there is another possible problem. the candle is wet;
• make sure the circuit switch is working.

By excluding all possible malfunctions, you can proceed to adjust the ignition of the coil.

Replacement of the ignition coil on the trimmer

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.

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.

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.

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.

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.

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

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.

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.

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.

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:

The ignition regulation procedure

Setting the ignition system is simple and the same on different trimmers, whether it be Stihl FS55, Al-KO BC 4125 or other lawn mower. First you need to remove the body from the engine, unscrewing the mount, fixing it. This stage of disassembly may have differences on different motorcycle models (described below). Then it is necessary to partially unscrew the screwdriver fixing the magnet, and turn the flywheel so that the magnets are on top.

To optimize the gap between the coil and the magnet, it is necessary to use a special template. It is not recommended to buy it for one.time use, so you can use a business card or a small calendar, as well as A4 paper with four sheets. A strip cut from a plastic bottle or other material with the required thickness is also suitable. The optimal distance is usually indicated in the user guide. The selected object should be located between the magnets and the coil.

Then the coil will be pulled to the flywheel with a magnetic field. Holding the magnet in this position, it is necessary to tighten the mounting bracket, and then remove the business card. Then you need to turn the flywheel several times so that it does not touch the coil at all. The process is completed. The ignition on the ignition lock is installed. You can learn more about setting up the ignition system of a trimmer for grass on the Internet, where there is a lot of video on this topic.

Features of regulation on different models of trimmers

The ignition system is similar in technology with different brands, so the debugging process will look the same. Differences, if any, are insignificant. Basically, they are related to disassembling equipment. For example, removing the casing from the engine on different trimmers is performed with some differences. Therefore, on Patriot devices, you first need to unscrew the screws and remove the air filter housing using a slotted screwdriver. The plastic cover will be easy to remove. A detailed scheme and a trimmer for grass for a specific model are usually displayed in the tool guide.

Thus, you can make an ignition with a gas trimmer with your own hands. This process is simple if you know the correct procedure. But first, you must eliminate the possible malfunctions of other components and parts, such as spark plugs or magnets that can cause the scrap engine to launch the engine. However, when analyzing the equipment of different brands, the probable differences in the design should be taken into account, which are described in detail in the user manual.

Typical malfunctions of gasoline trimmers

The design of gasoline trimmers is more complex than electric ones, so they have more damage.

Ignition

If there is no spark when starting the engine or there is a spark, but it is weak and insufficient for ignition of fuel, this indicates a malfunction in the ignition system. To eliminate this, you need to check the magnet. Sometimes it is necessary to replace the high.voltage wire if it is torn, or to clean the contacts. The spark plug is also the cause of the spark plug. In some cases, the problem occurs if the mixture fills the candle or carbon deposits appear on it. On cheap Chinese bush cutters, the engine sometimes does not start due to the switch.

Often the problem is not in the details themselves, but in the gap between the ignition coil and flywheel. In this case, it is necessary to make adjustments. Failure to fulfill this requirement will lead to early or late ignition of fuel.

Fuel system

When diagnosing the fuel system, the fuel mixture in the tank is first checked, as well as its quality. It is prepared in accordance with the user’s management, the proportions are prohibited. Also do not mix with a warehouse. During storage, it changes its properties and subsequently damages the equipment.

First you need to replace the mixture in the gas tank and restart the engine. One of the distinctive signs of poor fuel and lubricants is that the trimmer for the grass does not switch the transmission and speed and stops, regardless of how it starts. to the cold or after warming up.

If the device is poorly rebooted, you must see the candle channel. Perhaps she received a fuel mixture. This is due to improper use of the tool: when starting, the air damper is set to the shutdown position, but after starting the engine, it is not transferred to its original position, which leads to engine delay. The next time you try to start the engine, lower the spark plug, and the start of the device will not be. To eliminate the problem, the workpiece is twisted and thoroughly dried, since only a dry candle can be installed. You also need to drain the fuel from the candle channel, remove carbon deposits from the candle electrodes and, with proper installation, properly adjust the gap between them.

Air filter. Another possible reason for the failure of a trimmer for grass. If it is clogged with garbage, the air does not fall into the combustion chamber and the fuel does not ignite. The subject is replaced or thoroughly washed and dried. If the oil is found in an air filter, it is washed with gasoline and dried for several hours.

The fuel filter is also to be checked. Cleans the fuel mixture of garbage. Its clog leads to gasoline entering the cylinder, and the trimmer for the grass stops. It is necessary to remove and clean the fuel filter, if necessary. Replace with a new one.

breath. This is a check valve that allows you to align the pressure in the gas cylinder. If it clogs, a vacuum forms in the fuel tank, and the fuel does not get into the carburetor. To do this, disconnect the hose from the tank to the carburetor. If the gas does not flow, the valve is clogged. On the cover of gasoline tank sometimes on the fuel tank, you should breathe. The product must be disassembled and carefully cleaned.

Carburetor

This bureau is out of order due to poor fuel stored in a dirty chamber, as well as because of a deformed air filter. Details such as diaphragms, intake needle, saddle, mesh filter, adjusting lever, lids, etc. D., Can clog or break. Diagnostics of the device and further cleaning or repair in some cases are required, the carburetor adjustment is required.

The system of hoods

If the brush stops when the user presses the gas and increases the engine speed, this may indicate the clogging of the exhaust system. This is due to a large amount of combustion caused by combustion of oil, which is included in the fuel mixture. To eliminate the problem, it is necessary to clean the muffler and related details.

Important! The only way to avoid breakdowns. properly observe the proportions of oil and gasoline when preparing the fuel mixture.

Starter

The appointment of the starter. help launch a bush cutter. The main disadvantages of this device are: cord break and break or exit from the spring hook. To eliminate the starter malfunction, select the cord with a new one and return the spring to its place, or, if it is damaged, install another.

Piston group

When diagnosing the piston group, you should first check the compression. If this does not work, the engine will not start. This should usually be more than 8 kg / cm 2.

The note! This does not work on some engines, therefore, at 8 kg / cm 2, they are delayed, since the fuel mixture is not pumped. Therefore, if the bureau does not rotate above the recommended value, it is necessary to check the piston, cylinder and rings.

Another possible cause of low compression is a poorly fixed carburetor. If gasoline is dripping during operation, this also indicates the need to tighten the fastening of this device.

Cutting the blade

One of the possible malfunctions of the cutting blade is the displacement of the cartridge cover or stuck. This is due to the distortion of the axis or the installation of an unused mower. As a result, rotation is difficult, the load on the engine increases and it overheats.

If the cutting disk does not rotate, the assembly check depends on the design of the rod. For a curved shape, it is necessary to inspect the sleeve and the rod itself, as well as in a straight braid fishing line, shaft, gearbox and clutch. All connections between the details must be intact. The test is carried out only if the trimmer for grass sometimes occurs confusion, and users think that the problem is in the cutting block, but the engine is actually faulty.

clutch

If the cutting part of the trimmer for the grass constantly rotates at idle and an unusual metal rattle is heard, these are signs of faulty adhesion. The reason is usually a broken or elongated spring. If you add sliding, the pads are also faulty.

The note! To fix the trimmer for the grass, the coupling is disassembled, checked by a spring, bearings and a block. Damaged objects must be removed and replaced by new.

Drive shaft and stock

If strong vibrations occur during operation, this indicates that the lubricant on the shaft inside the rod is absent or absent. In this case, even the anti.vibration system will not help. Shock absorbers are located between the rod and the engine. To eliminate the problem, you need to disassemble the tape and grease the shaft. And in order to avoid the next manifestation of such a breakdown, it is necessary to regularly serve the device. If the vibration does not decrease after lubricating the shaft, it must be replaced.

Transmission

The gearbox of a trimmer for grass is used to transmit rotation from shaft to the cutting part. It includes a case, bearings and gears. This may partly be such malfunctions.

The main malfunctions of the coil

Users of the electrimmer and lawn mower often face a problem associated with a semi.automatic braid head. Coil malfunctions can be as follows:

The fishing line for the trimmer does not extend automatically

If, with a light blow, the trimmer coil button for grass on the ground is not lengthened for a trimmer, then the reasons for this may be the following.

Option 1. there was a snack, t.e. Squeezing the cord between turns. This problem usually appears if the user wound a fishing line for a trimmer to the coil unevenly, with the intersection of the turns, or wound it with insufficient tension. In the latter case, when the mowing head is rotated at large revolutions under the influence of centrifugal force, the cord begins to drag on, as a result of which the interitral clamping of the fishing line is possible. To eliminate the problem, you will have to disassemble the coil on the trimmer and rewind the cord correctly, that is, with even turns with good tension.

Option 2. too short ends protrude from the head. A fishing line for a trimmer may not exit when hitting the ground, if its ends sticking out of the head, insufficient length (short). In this case, the centrifugal force is not enough for the fishing line for the trimmer to stretch. Therefore, it is required to stop the unit (drown out the engine or turn off the ethletric trimmer for grass from the network) and pull the fishing line for the trimmer manually, after pressing the button.

Option 3. a fishing line for a trimmer was soldered inside a mowing head. This leads to the fact that the coil is stopped and does not spin when the button is pressed. Basically, this happens for several reasons: poor quality of the cord, overheating of the coil with prolonged operation of the unit, a fishing line on solid items.

• In the first case, the cord of third.party manufacturers can be made of low.quality and fusible materials that do not withstand the mechanical and temperature load. Therefore, preference should be given to “branded” fishing.
• But, if you still purchased a fishing line for a trimmer of unknown quality, and it is often soldered during operation, then you can follow the example of some users who, after refueling the cord, moisten it either with silicone grease (from the spray can) or mineral oil). This procedure greatly reduces the likelihood of soldering a fishing line among themselves.
• Also, a fishing line for a trimmer can sleep if during a mowing it hit a hard object (stone, fence, dry branch, etc.D.). As a result of this, it is slightly stretched and draws back into the head with high speed. The cord is heated from friction, and its turns are sticking together. The only thing that can be done to eliminate this malfunction is to open a trimmer coil for grass and rewind a fishing line for a trimmer.

The cord spontaneously lengthens

There are situations when a user of a trimmer for grass notices a very fast fishing line consumption. At the same time, he never hit the ground with a button to lengthen the fishing line. The reason that the fishing line for a trimmer spontaneously lengthens, cutting off a special knife on the casing of the device, may be the absence of a spring in a mowing head. Often beginner users of mowers, trying to charge a fishing line for a trimmer into a coil, forget to install a clamping spring in the head, or completely lose it when opening the lid, and in the future, they do not even suspect its existence.

Also, a fishing line for a trimmer can lengthen without using a button if the spring is weakened. If the spring check confirmed this fact, then it is necessary to put several goals under it to strengthen its clamping properties.

Is it possible to make a coil for a trimmer for the grass with your own hands

Read how to choose a gasoline trimmer for grass for grass

Such a home.made mowing nozzle is fixed on the shaft with a nut. Twist or unscrew the nut without fixing the shaft will not work. To change the cord, it will be enough to release screws, stick a segment of the fishing line of the desired length and crush it again.

Also, a mowing nozzle for fixing the fishing line on it can be made from the iron sheet. How to do this can be realized from the subsequent.

In various models, the method of attaching nozzles can be different. But in general terms the design is very identical. We give a step.by.step annotation:

• Find the hole in the gearpore (it is placed either from above or on the side) and combine it with the hole in the shaft hub.
• Pass the key-player or the iron rod into the gearbox hole to exclude the turning of the shaft.
• Hold the key with one hand and unscrew the coil with a fishing line (you usually need to twist clockwise).
• Remove the coil.

Before you remove the coil with a fishing line on a trimmer, the tool must be disconnected from the network. If you have a lawn mower, certainly drown out the engine.

Whether it is required to launch a gas trimmer for grass from the seller

You can find out proportions in the instructions attached to the tool, or on the oil label.

The instructions will also show you the recommended type of fuel, as well as the recommended type of motor oil. Prepare a small amount of fuel for one cut of grass.

Use special plastic canists for fuel or individual glass or metal plates. It is best to fill the oil with a medical syringe.

If you are going to start a new brush, many people have problems with the preparation of the fuel mixture.

This will ensure the correct operation of a two.stroke three.dimensional engine. Pre.prepared fuel eliminates difficulties and errors when mixing fuel immediately before mowing. It is necessary to mix fuel so that it can be used for a month, but not longer, since when stored for more than 1 month the oil settles and the fuel is aging.

Why is the cutter does not start. We eliminate problems

Here, ordinary candle keys will cost the repair (probably every motorist has) and spare candles.

• Install a gap at a distance of 1 mm (you can check any coin);
• We return everything back to place and try to launch a trimmer for the grass.
• Dry it thoroughly (do not buy);
• Excess fuel in the chamber is drained through the hole for the spark plug and dried;
• We twist the candle and wipe it;
• We remove the old candle from the deposit with a folder or a ladies’ folder;

Dry the channel for at least 30-40 minutes. Otherwise, there is a risk of refueling a new candle.

If the candle works, the outlet is completely dry and you do not want to start the brush completely, grease the threaded connection with gasoline. It should be a little moisturized.

No matter what a wonderful spark produces a candle, a dry camera simply does not light up. If the engine