Chain saw does not twist the chain. The chain lubrication system

Does not twist the chain on the chainsaw of Husqvarna. The chain works but the chain does not spin. The final adjustment of the carburetor of the chainsaw

Despite the simplicity of the construction of the chainsaw, if interruptions arose in its work, and sometimes with the complete failure of the unit, it is quite difficult to find the reason for the problem. Of course, an experienced master will immediately be able to determine what led to a particular failure. But an ordinary user, in order to find a chainsaw malfunctions and perform repairs with your own hands, will need to study the symptoms that are inherent in a particular breakdown.

The engine is the main node of the chainsaw, and most of the breakdowns arising in it are associated precisely with the gasoline drive. Correct diagnostics can determine the causes and methods of eliminating malfunctions even to an unprepared user.

The main problems with the launch of the engine can be as follows:

  • the engine does not start;
  • It works unstable;
  • the launch occurs, after which the unit immediately stalls;
  • Stalling at load.

Malfunctions of the ignition system

First of all, the reason that the chainsaw is not started should be sought in the ignition system of the unit. You need to start with Checking a candle. Since there is a chance that the spark has disappeared.

As of the twisted candle, you can determine how the fuel system works. The candle is twisted with a special key.

The following figure shows 3 variants of the state of the spark plug.

Забрызганная топливом свеча говорит о его избытке в цилиндре. Если свечу заливает, то скорее всего неправильно отрегулирован карбюратор, или были нарушены правила пуска двигателя. Свечу необходимо хорошо вытереть и высушить. Также следует осушить камеру сгорания:

  • перекрыть подачу топлива;
  • при выкрученной свече несколько раз потянуть за стартер, чтобы из цилиндра удалился весь бензин:
  • установить свечу на место и провести регулировку карбюратора согласно инструкции.

Большое количество нагара на свече вызывается неправильным соотношением между маслом и бензином во время приготовления топливной смеси, а также неполадками в системе подачи топлива. Если смесь приготовлена правильно, с использованием качественного масла, то следует отрегулировать карбюратор. Свечу с нагаром необходимо очистить, промыв в бензине. После чего, ее нужно вытереть насухо, иглой убрать остатки гари и зачистить электроды мелкой наждачной бумагой.

Также следует проверить свечу на предмет правильного зазора между электродами. В норме, зазор свечи должен быть в пределах от 0,5 до 0,65 мм.

Если свеча сухая. требуется проверить наличие искры на ее электродах, чтобы исключить неисправность системы зажигания.

  • Оденьте на свечу колпачок с высоковольтным кабелем.
  • Держась за колпачок, приложите резьбу свечи к цилиндру.
  • Дерните несколько раз ручку стартера и посмотрите, проскакивает ли искра между электродами. В норме, искра должна быть яркой. Слабая искра говорит о возможной неполадке в катушке зажигания или в самой свече.

Если искра есть, значит, проблему нужно искать в топливной системе. Нет искры – причина может крыться в самой свече (требуется заменить) или системе зажигания. Отсутствие искры может вызывать поврежденный кабель, который следует проверить, “прозвонив” тестером. При исправном проводе нужно двигаться дальше — проверить модуль зажигания. Неисправность катушки зажигания или неправильно выставленный зазор между ней и магнитом также может вызвать тот факт, что пропала искра.

Зажигание на бензопиле устроено просто: на валу двигателя закреплен постоянный магнит. Возле него под определенным зазором закреплена катушка. При вращении магнита в катушке образуется электрический ток, который и подается на электроды свечи. На следующем фото стрелкой показано, в каком месте устанавливается правильный зазор между катушкой и магнитом.

The gap between these parts should be 0.2-0.4 mm. The walls of an ordinary plastic bottle have such a thickness, and you can make a template (probe) from it, cutting off a small strip.

  • unscrew the screws holding the coil;
  • Put the template between the magnet and the coil;
  • Press the coil slightly to the magnet;
  • Twist the fasteners of the coil screws and remove the template.

Fuel system malfunctions

If the chainsaws are poorly started, and everything is in order with the ignition system, then it is necessary to check the entire fuel system of the unit. First of all, required set up the fuel mixture into the engine cylinder through the carburetor, correctly setting it up.

The compression is checked by a compressometer that is screwed into the cylinder instead of the spark plug. Next, it is necessary to pull the starter and observe the readings of the device. Normally, the new chainsaw shows compression from 8 to 12 atmospheres. With an indicator below 8 atmospheres, the engine will not work.

Compression may be an abyss due to scratches on the inside of the cylinder and the side surface of the piston. In this case, you will have to change the entire piston group.

Problems with the chain of chainsaw

In addition to problems with the engine, the chainsaws may have problems in work due to a malfunction of the cutting (sawing) node consisting of an oil pump, tire and saw.

Oil does not enter the tire

Usually, if the oil does not enter the chain of the chainsaw, you need to check the channels along which the oil is supplied to the tire, and clean them of pollution. If the previous actions did not find the cause of the problem, then you will have to check the oil pump. For this you need:

  • remove part of the chainsaw casing;
  • Remove the coupling;
  • Up the 3 screw, remove the lid hiding the pump;
  • Get to the gear of the worm mechanism that rotates the pump shaft.

If the thread is worn out on it, then the shaft does not rotate, the pump does not work, the circuit is not lubricated. Worn gear needs to be replaced. You can also pull out the oil pump itself and manually try to pump oil through it. If it does not pump, the pump should be replaced.

Do not forget to get an oil filter from the tank and clean it if you need it.

Also, the lack of lubrication can be The reason for her leakage. It should be checked how hermetically connected the tubes coming from the oil pump. If the tightness is disturbed, the tubes change to new.

The chain breaks

If the chain was torn during the operation of the chainsaw, then this could happen when it hits a solid object, for example, on a nail. If the chain is constantly tearing, then the reasons may be the following.

  • Low metal quality. from which a saw chain is made. It is necessary to buy saws for gas tanks from famous brands.
  • Overheating of the chain because poor lubrication. As a result, the saw overheats, the properties of the metal change, and it breaks under load. It is required to check the entire lubrication system of the chainsaw (considered above).

You can also learn about the causes of frequent cliffs of the chain from this video.

The chain does not spin

This nuisance often haunts inexperienced chainsaw owners. They forget after starting the engine Remove the brake. As a result, the chain does not spin, the brake system is overheated, and the adhesion mechanism fails. The problem is solved by removing the saw from the brake. If the clutch does not “burn”, you will notice the rotation of the chain. Otherwise, you will need to replace the clutch mechanism.

The chain is quickly stupid

Basically, the reason that the chain is quickly stupid is Poor quality saw. Trying to save on buying branded chains, owners of chainsaws buy saws of unknown manufacturers, or for inexperience acquire fakes for well.known brands. It is best to buy a cutting element for a fenzoresis in branded stores. The STIHL (stihl) saw chains are very popular among owners of this technique.

The chain does not stop

If when working with a chainsaw, you noticed that the saw chain does not stop at the right time, then this breakdown may have 2 options.

  • The brake tape was polluted. When the saw, dirt, sawdust, dust, etc. can fall under the tape.D. As a result, the brake mechanism is blocked, and the circuit does not stop when the gas is discharged. The problem of cleaning this node is eliminated.
  • The brake tape has worn out. It is necessary to replace this element of the brake system.

The chain wedges

This happens when the leading or led star wears out. The chain usually starts to wedge under load. But without a load, the saw can rotate. The photo below shows a worn leading asterisk of a chainsaw.

The following photo shows that the reason why the chain is wedges should be sought in the place of location of the driven star.

But what to do if The chainsaw was completely jammed, And all attempts to pull the starter are unsuccessful? Such a malfunction is sometimes found on Chinese.made chainsaws. It is caused by the bolts unscrewed from the vibration, with which the engine is screwed to the plastic casing of the unit. These bolts are located right under the flywheel (magneto). The photo below the arrows shows the location of the problem bolts.

Turning away, they begin to rub on the flywheel and can completely jam the chainsaw. The following photo shows a flywheel with existing scuffs from bolts.

To eliminate the malfunction, you will need to remove the flywheel from the engine shaft and tighten the bolts.

The chainsaw saws crookedly

This problem may arise if the chain is dull or impudently sharpened. This is more related to new chainsaws. But if The tire worn out. then even after replacing the chain you will notice that the saw leads to the side. Tire wear can be easily determined if you put it on an even table and attach a square to it, as shown in the next photo.

In this case, you can notice that there is a gap of about 2 mm between the tire and the corner. It is because of such a unilateral wear of the tire of the chainsaw saws crooked. The problem is solved only by replacing the tire with a new.

Important: to extend the service life of the chainsaw tire, it needs to be removed from time to time and turn over. Thanks to this, the tire will wear out more evenly and will not cause a skew of the chain.

How to diagnose malfunctions and make a chainsaw repair with your own hands

Chainsaw in the country, in a private house. a frequent phenomenon. It can be amateur, semi.professional and professional. The choice depends on the frequency and complexity of the activity. She largely simplifies work on harvesting firewood, helps to quickly put a log house. In case of breakdown in most cases, it is possible to repair a chainsaw with your own hands. The equipment failure may be associated with idle problems, the mechanism will not start or troit.

The principle of repair in all chainsaws is approximately the same. Before work, be sure to read the instructions. In this type of technique, the great complexity is not the repair itself, but the search for the focus of the breakdown.

What may be problems

All problems can be divided into two large groups:

The engine breakdown is characterized by the following:

  • The equipment does not start, stalls;
  • does not pump fuel in a primer;
  • unstable work, swimming;
  • It works at idle, during load it can swim, stall, shoot.

If the problem is in other nodes, the following phenomena are noted:

The main malfunctions of the chainsaw: Reasons

Every year, manufacturers develop equipment that is more complicated and reliable in design, but simple for operation. Chain saws. no exception. But no matter what modern functions are included in the device, it is difficult to avoid a malfunction of the chainsaw. Diagnosis of breakdowns can be carried out independently using the instructions for operation. Consider the main types of malfunctions.

Saws crookedly

We will figure out the reasons why the chainsaw saws crookedly. This is manifested during the saw under load of the trunks, when the tire gradually leads to the side. This is especially noticeable when a wide trunk is drunk by double cut, first from above, then from below. As a result, the output is an uneven sawn surface, which in some cases is unacceptable. Example. ending of bars.

  • Uneven sharpening of the teeth of the saw. This is the most common reason why the device cuts obliquely. The teeth should grind at the same distance to avoid problems when sawing. The optimal output is the acquisition of a sharpening machine, which is tuned to the most worn tooth of a saw mechanism. Or contacting a workshop where there is such equipment. The result is all teeth of the same size.
  • The chain or tire used is not suitable in parameters. When buying these elements, it is necessary to take into account the width of the groove. This is important not only for the correct operation of the equipment, but also for safety when cutting.
  • The device’s saw set is very worn out. If the device has poorly saws, increased wear of the headset is possible. Visual inspection will indicate the problem. If the right or left side of the tire is more worn stronger, it must be changed to a new. With increased wear, it makes sense to complete a full diagnosis of a lubricant system. This is often the cause of increased wear of one of the sides of the chain.

In the case of complex repair, it is better to give equipment to a specialized workshop.

Hearing

If a new chainsaw is heated, this is due to the fact that the elements of the piston group have not yet been lost. In this case, it is necessary to carry out running.in, avoiding overheating. If the problem is associated with an already operating device, the reason may be in the late ignition. Sometimes the device overheats due to violation of the proportions of the preparation of the combustible mixture.

He is not gaining momentum

The problem is manifested when starting. Basopile does not develop speeds, works with jerks or in idle, stalls, starts with a pusher, beaten back during the factory.

  • If the device does not hold idle speed, the causes can be in a filter block, a poor.quality combustible mixture, carburetor, incendiary module or deformation of motor elements at load.
  • If the saw does not develop traction at full power, pay attention to the carburetor. There is a chance that the settings of the working unit are set incorrectly. Adjust Zhekeler “n” responsible for the cut at the load. To do this, set up fuel supply at high rotation speed.
  • Does not drop in momentum. The problem is that the device can quickly develop speed at high speeds and not throw it away. It is necessary to check the functioning of the throttle, switching the toggle switch, the presence of a corkscrew on the val of a throttle.
  • Uncontrollably gaining speed of rotation. The reasons can be in a carburetor, fuel system, connecting elements leading to a carburetor.
  • The technique only works on the suction. The reason is the improper preparation of the fuel mixture, a large amount of oil.

These are the main, most common causes of malfunctioning this type.

Oil flows

Owners of chainsaws often face a problem when oil flows from under the unit. The reason lies in the damaged oil hose, which is connected to the pump.

There is no spark

Ignition problems are associated with a weak spark on a chainsaw or with its absence. When checking the spark plug, there may be a blue spark. This suggests that everything is in order. If the spark is gone, check the high.voltage cable. It may have a wire break. Another option why there is no spark, associated with the wrong gap between the ignition module and the magneto pipeline of the flywheel. The norm for this indicator is 0.2 mm.

Gasoline does not act

To find the focus of the breakdown and determining why the device does not pump gasoline, disconnect the gas pipeline from the carburetor. Try to download fuel. If it is submitted slowly, problems can be:

Adjustment of the chainsaws, repairing with your own hands of common faults

Modern chainsaws delight us with their reliability, ease of operation and the presence of many special vibration suppression systems, automatic lubrication of the chain, lightweight launch. But even such a technique fails over time, especially if you do not serve it in time and correctly. We offer to study the characteristic breakdowns of chainsaws and methods for eliminating them with your own hands.

Signs of breakdowns and independent repair of the chainsaw motor

One of the most frequent breakdowns of each chainsaw is the malfunction of its motor. Determine that the reason lies in this, is quite simple. Several signs may indicate this problem:

  • The chainsaw does not start;
  • The tool engine works unstable and very noisy;
  • The motor manages to start, but it constantly stalls;
  • The motor overheats very quickly;
  • Basopile only works on the suction;
  • The motor smokes strongly, and the power, while falling.

If you do not know how to make a chainsaw to work quietly, then, first of all, you will need to study its design. Only after that can you begin an independent repair of the tool.

To avoid such errors, you should once again study the procedure for launching a chainsaw with a cold motor. The algorithm of action looks as follows:

chain, does, twist, lubrication
  • Lower the throttle switch to the “closed” position;
  • Press the fuel to the carburetor several times several times;
  • Pull the starter handle until the resistance appears;
  • After I saw it and immediately stalled, translate the lever of the shutters into a position “openly”;
  • Start the chainsaw again and let it work a little at idle.

If this did not help, then you will need to inspect the spark plug. If you saw a large amount of oil on it, then the part needs to be twisted and dried. After that, you will need to dry the combustion chamber, screw the candle and try to start the saw again.

The serviceability of the candle itself can be checked as follows. First you need to connect a high.voltage wire to it, put the spare part on the cylinder and pull out the starter cable. At the same time, in no case do not grab the candle with your hands. If you notice the blue spark, then the candle is completely serviceable. Screw the part to the place in the chainsaw again and repeat the launch of the motor. If this did not help, then it is a queue to check the ignition system and wires connected to the candle.

If large fuel spots are noticeable on the candle, then you need to check the tool carburetor. If a thick layer of black soil has formed on the details, then the problem can lie in the use of poor.quality motor oil. quite often this serves as the reason why the chainsaw is filled with a candle. The product needs to be replaced, and the candle is thoroughly cleaned with a needle or awl.

When checking the candle, be sure to pay attention to the distance between the electrodes. it should be from 0.5 to 0.65 mm. Very often too much distance between electrodes is the reason why there is no spark.

How to adjust the chainsaw. advice to beginners

In most service centers, the adjustment of the chainsaw is performed using special equipment. Each model has its own optimal values ​​of the angles of rotation of the screws. As a rule, chainsaws do not require frequent adjustment of carburetors. However, they may be required in certain cases:

  • With a strong wear of the piston of the motor. this is what causes why the chainsaw shoots;
  • When the blockage is formed inside the carburetor as a result of the use of poor.quality gasoline and the failure of the air filter. in such cases, not only adjustment will be required, but also the washing of the node;
  • In case of damage to the protective cover. often this is the reason why the chainsaw is gas.

There are a number of signs directly indicating the need to adjust the carburetor:

  • The engine does not work on idle or the chainsaw does not start at all. the reason lies in the poor fuel mixture;
  • The fuel consumption and the volume of exhaust gases have increased sharply. this is a consequence of the oversaturation of the carburetor with a fuel mixture.

Carburetor configuration scheme may differ for different models of chainsaws. But, despite this, the general principle remains unchanged.

  • L. is deciphered as “LOW” and is used to adjust low revolutions;
  • H. it matters “High”, and is responsible for working at high speeds;
  • T (s, la). used to adjust the idle.

Before adjusting the chainsaw, you should make sure that the cutting chain of the tool is directed in the opposite side of you. The chainsaw must be installed on a flat surface so that its chain does not touch other items.

Before adjusting the chainsaw, carefully study the procedure specified in the operating instructions. The setup of the gasopyle carburetor consists of two stages. the base, in which the engine is not edited and the final, when the chainsaw motor is heated and works. The procedure is as follows:

  • Slowly wrap the screws l and h clockwise until it stops, and then turn them a half turn on the clock;
  • Make the motor and leave the chainsaw for 10 minutes to work at low speeds;
  • Next, proceed to the final setting. Before adjusting the idle speed of the chainsaw, you will need to turn the idle screw towards the clockwise direction until the engine speed is minimal, the engine will work steadily, and the circuit will stand in place. If the screw stalls in this position, then the screw must be turned clockwise. If the adjustment of the idle stroke on the chainsaw has led to the fact that the circuit is spinning at idle, then the screw must be turned a little counterclockwise;
  • Then you need to check the chainsaw for accelerating the motor. To do this, smoothly press the gas lever. If the revolutions are gaining slowly, then you need to slightly turn the screw L countdown;
  • Next, set the maximum engine speed. You can check them by the presence of failures in the ignition system. If they are, then the screw h must turn counterclockwise;
  • After setting up acceleration and maximum speed, you need to check the operation of the chainsaw at idle again. The fact that you did everything correctly will be indicated by the lack of movement of the circuit at idle and the stable operation of the motor will,

The engine “shoots

If during work there are extraneous sounds similar to shots, then the problem with the silencer or carburetor. How to make a chainsaw work quietly? It depends on which unit in which node is.

Shoots at the carburetor:

  • Too later the ignition is that the fuel mixture does not have time to burn out in the cylinder, so a sound that looks like a small explosion is obtained.
  • Donested fuel mixture. There is too little gasoline to the mixture. adjustment of the chainsaw is required, or rather nozzles, to increase the fuel supply. Why is the chainsaw he gasps itself. for the same reason.

Shoots into the silencer:

  • Enriched fuel mixture. Why is the chainsaw “shooting”? There is too much gasoline and little air in the mixture, so the mixture does not completely burn out in the chamber and partially burned out in the muffler. Feast on the exhaust. a clear sign of this. It is necessary to clean the air filter or adjust the carburetor.

Overheating of the chainsaw

Why the chainsaw is warming? A engine or tire can bask. in any case, a small amount of lubrication is all to blame.

  • Overheating of the engine. Incorrect proportion of the fuel mixture or generally floods pure gasoline. Drain the fuel and make a mixture with proper observance of the proportions of oil and gasoline, as indicated by the manufacturer.
  • Overheating of the tire. Cleaning or adjusting the oil pump is required, t.to. Oil is not supplied to the tire.

The chain does not spin the chain

In operation of the chainsaw STIHL MS 180. Incorp the subsequent. Before conservation by winter on the advice of mechanics, dripped 4 drops of motor oils (stihl) in the hole of the candle. Twisted the candle. At the moment I was going to go to the country, I decided to look at the saw. Pulled by the starter, but he does not spin! Turned the candle, she in oil, wiped it back. same. Turned out, scrolled the starter without a candle, completely revolves. Twisted back, the starter does not spin. What will you like?

Rinse the motorized motor unsuccessful, not diluted gasoline, pour directly through the candle hole and slowly scroll through the starter. Later, drain fuel and the latest. After all these manipulations, dry the saw and candle and only because of this try to start it. Once you have learned to be preserved, then learn and reward, and not just pulled and went.

Tell me why the starter can jam? Chain saw STIHL 180 completely brand new.

You can’t know you will not know. Maybe the launch cord is poorly laid, or maybe somewhere the tide interferes with. Stilev starters are quite reliable and durable. There are no diseases of the constructive plan, in the main thing in another mud, or saturated operation. Once a new chain chain of a new one, carry it to the service under the warranty will be renovated.

I’ve seen one feature at the Stihl MS 180 chain chain chain: when gasoline is completed in the tank, the idle speed increases and the chain begins to spin even with a released trigger. When you press the gas, the same chainsaw stalls. This continues a couple of 10 seconds, later motorized motor stops. On automotive technology, I did not follow such a phenomenon so that with a lack of fuel in the carburetor, the revolutions of the motor would increase. Why is this happening?

This is an ordinary phenomenon for two.stroke engines. With reducing the supply of gasoline to the carburetor, the consistency is impoverished. As a natural result. increasing speed, deterioration of acceleration. The short.term overheating of the CPG accompanies this. The engine will not disable, but it will not add health. The production of fuel from the tank to the end should be avoided.

chain, does, twist, lubrication

There is a chainsaw of the Stihl MS180, used in the summer season on the harvesting of firewood. In recent years, the reaction of the chain when the gas is pressed, the chain does not spin in general, or jerking. It is unrealistic to saw. What is the breakdown and possibly?

For a completely latest chain and stars, the stretch is required to become exactly by annotation. so that the lower branch does not sag. And the top fingers could be removed the height of the leading link. Then the chain will walk quite freely along the tire. However, the gradual wear of the teeth of the asterisk reduces its step. And the gradual stretching of the chain increases its step. And the time comes when the steps of the same stars and chains cease to coincide to the extent that the recommended stretch already causes a difficult movement of the chain. Here we advise you to reduce the stretch a little. Right to the occurrence of some kind of lean or upper branch. When, for the same reason, it is recommended to use a couple on one asterisk, which saved three chains. In this case, the wear is moderately and will not even be accelerated wear of the latest chain on an old, partly that worked, stars.

STIHL 180 chainsaws after starting when pressing the gas is zabulak and ate to start sawing, then stalls. But if you torment the gas seconds 30-40 starts to work normally. I developed 3l gasoline, the filter is unsuccessful, the dealer oil.

If this began not so long ago, then, probably, something got into the carburetor with poor fuel in the carburetor. It is necessary to clean.

We are not talking about the engine itself, since it is better to diagnose it in the service, look for the rest and get a lot of information. A significant mileage will be indicated by: the dangling latch of the upper cover. (Should be locked tightly and not even turn from vibration). Brand new star on a ragged motorcycle. When the lid is removed, the motor is relative to the housing. Cut chain capture and damage from the chain on the chain wheel cover. You can still look closely at the left on the way along the side. the place where the wire thrust enters the lever of the axis of the air damper. It will be even, oblong, oblong. The longer the saw worked, the simply will the development of this hole will be. From time to time it wipes through. You can never take a saw, which requires at least a small free stroke of the right end of the crankshaft relative to the motor. This is a sign of a quick overhaul.

How many seconds should the STIHL MS 180 chainsaw engine idle, before you jerk it off?

Let it work for about 20-30 seconds and after jam. What is simple. there is no point.

The idle move began to disappear, at first I did not realize what was the matter, and then I remembered that I needed to add a much idle, I added on a hot motor like it turned out. I arrive in a week to the cottage, it is necessary to cut a couple of logs, conquer the saw and at first on a cool motor, the chain is spinning later what remains to make our client passes, stood for 10 minutes to be the conquest for our client only remains on a cool motor. This is fine?

If the chain is cunning, the turnover means overstated. It should be understood that in a normally adjusted and serviceable engine, a slightly high.high.term idle move is completely likely after starting before heating. And he can be decent. to the rotation of the chain. With a warrior of the idle motor, it is gradually lowered. Therefore, it is recommended to regulate idle only on a heated engine.

Is it possible to put a clutch drum with a removable crown on the chainsaw of the Stihl MS 180 (the modernization of the drum is allowed), for example from the 250th.

Can. Everything is great. Just do not run to run to, 325. It is hard to motor. However, you should mean a couple of aspects. On such a set (with a removable), a little more diameter for one tooth is a little more. The speed of the chain will increase in a proportion of 6: 7, respectively, the load on the engine will also increase. But practice has shown that this is not critical with normally sharpened chains. And 2nd. A completely brand new chain of 50 links on such an asterisk is dressed with a certain complexity. (In general, 51 links are recommended, but they occasionally occur). First you have to suffer so that she stands on the asterisk and the tire. And then, when it stretches a little, everything will be dressed fine.

The chain works but the chain does not spin

Despite the simplicity of the construction of the chainsaw, it is quite difficult to find the problem in the event of a malfunction of the chainsaw, and sometimes even with a complete malfunction of the unit. Of course, an experienced master will be able to immediately determine what led to a particular refusal. But for an ordinary user, in order to find a chainsaw malfunction and do it yourself, you need to study the symptoms inherent in a specific breakdown.

Malfunction of the chainsaw engine

The engine is the main link in the chainsaw, and most of the breakdowns that occur in it are associated with gasoline drive. Correct diagnostics can determine the causes and methods of elimination even for an unprepared user.

The main problems when starting the engine may be as follows:

  • The engine does not start;
  • Unstable;
  • Start occurs, after which the block stops immediately;
  • Cabins under load.

Failure of ignition system

First of all, the reason why the chainsaws do not start should be found in the ignition system of the unit. You must start with this a check of candles, like a spark, will probably disappear.

By the state of the inverted candle, you can determine how the fuel system works. The candle is twisted using a special key.

The following figure shows 3 variants of the state of the spark plug.

The candle splashed through wormwood speaks of its excess in the cylinder. If the spark plug is filled, then the carburetor may be adjusted incorrectly or the engine start.up rules are violated. The candle should be well wiped and dried. Also dry the combustion chamber:

  • Turn off the fuel supply;
  • When the candle is unscrewed, pull the starter several times to remove all the gasoline from the cylinder:
  • Set the spark plug and adjust the carburetor in accordance with the instructions.

A lot of soot on the candle is caused by an incorrect ratio of oil and gasoline when preparing the fuel mixture, as well as malfunctions in the fuel system. If the mixture is properly prepared using high.quality oil, the carburetor should be adjusted. The coal candle should be cleaned by washing gasoline. After that, it should be wiped dry with a needle to remove residual burning, and clean the electrodes with fine sandpaper.

Pioneer Partner 500 Chain Saw, Chain Oiler and Bar Repair

You should also check the spark plug for the presence of a gap between the electrodes. As a rule, the candle clearance should be from 0.5 to 0.65 mm.

If a dry candle, it must be checked for sparks on electrodes to eliminate the malfunction in the ignition system.

  • Put the cover on the candle with a high.voltage cable.
  • Holding the lid, attach the candle thread to the cylinder.
  • Pull the starter handle several times to see if there is a spark between the electrodes. Usually the spark should be bright. A weak spark indicates a possible malfunction in the ignition coil or in the spark plug itself.

If there is a spark, then the problem should be sought in the fuel system. There is no spark. The cause of the ignition may be the reason (it must be replaced) or the ignition system. The absence of a spark can lead to damage to the cable, which should be checked by “calling” the tester. With a good wire you need to move on. Check the ignition module. The ignition coil failed or the gap between the ignition coil and the magnet can also lead to the disappearance of the spark.

The ignition of the chainsaw is simple: a constant magnet is attached to the engine shaft. The coil is attached to it under a certain gap. When the magnet rotates, an electric current forms in the coil, which is supplied to the electrodes of the spark plug. In the next photo, the arrow shows where the correct gap between the coil and the magnet.

The gap between these parts should be 0.2-0.4 mm. The walls of an ordinary plastic bottle have such a thickness, and a template (probe) can be made of it by cutting a small strip.

The gap is installed as follows:

  • Unscrew the screws of the coil mounting;
  • Put the pattern between the magnet and the coil;
  • Carefully press the coil to the magnet;
  • Tighten the screws of the coil fastening and remove the template.

Fuel system malfunction

If the chainsaw does not work properly and the ignition system works properly, check the entire fuel system of the unit. First of all, you need to adjust the fuel supply to the engine cylinder through the carburetor, correctly installing it.

Next, you need to see how the chainsaw behaves.

  • The device stops after starting. If the fuel mixture is not prepared properly when the oil is added more than it should, the unit will stop immediately or will only work on the throttle.
  • The engine stops at idle. This is a sign of clogging of the muffler of soot (it is necessary to remove soot), clogging of the air filter (it must be washed), the incorrect tuning of the carburetor.
  • The device stops at maximum speed. The fuel or air filter is contaminated and should be cleared properly. Often such engine behavior can lead to clogging the respiratory gas cylinder. Removed by an ordinary needle. In addition, the failure of the diaphragm, which serves as a fuel pump, can also prevent the engine from typing maximum speed. You will need to disassemble the carburetor and replace the diaphragm if it has lost elasticity.
  • The chainsaw stops working when loading. This is a sign of improper adjustment of the carburetor, improperly prepared mixture or dirty air filter.
  • Pumping does not work. If the primer does not pump gas, and this happens most often after a long break in the operation of the unit, then check the carburetor. How it looks and where the Huskvarn chainsaw is located, is shown in the next photo. Inside the carburetor there is a spray valve, which can stick when the fuel lasts a long time. To eliminate the problem, it is necessary to thoroughly rinse the carburetor with gasoline or flushing liquid, and then blow all the holes with compressed air.
  • The chainsaw is not started. If after a short time you turn off the chainsaw, you unsuccessfully try to start it, in most cases this is caused by a loss of compression in the piston group.

Adjustment of the chainsaws, repairing with your own hands of common faults

Modern chainsaws delight us with their reliability, ease of operation and the presence of many special vibration suppression systems, automatic lubrication of the chain, lightweight launch. But even such a technique fails over time, especially if you do not serve it in time and correctly. We offer to study the characteristic breakdowns of chainsaws and methods for eliminating them with your own hands.

The chain does not cut

Reducing the performance of the chainsaw is associated with the denture of the chain. This is a common inconsistency, t.to. sharpening must be created often. How to do this with a machine, a ratfille or a corner grinder, read in the corresponding article.

Basil does not saw under load and stalls

  • The air filter is clogged. You need to get a filter, perfectly clean or even wash, dry and install it back.
  • Incorrect proportion. Dry fuel and chop mix oil and gasoline in the correct proportion.

Stalls immediately after launch:

  • The fuel mixture is incorrectly cooked, there is a lot of oil in it, because the octane number of gasoline is less than it should be, because the chainsaw works only on the leak or immediately stalls.
  • Feast on the spark plug or incorrect gap between the candle and wire.

Signs of breakdowns and independent repair of the chainsaw motor

One of the most frequent breakdowns of each chainsaw is the malfunction of its motor. Determine that the reason lies in this, is quite simple. Several signs may indicate this problem:

  • The chainsaw does not start;
  • The tool engine works unstable and very noisy;
  • The motor manages to start, but it constantly stalls;
  • The motor overheats very quickly;
  • Basopile only works on the suction;
  • The motor smokes strongly, and the power, while falling.

If you do not know how to make a chainsaw to work quietly, then, first of all, you will need to study its design. Only after that can you begin an independent repair of the tool.

The chainsaw does not start

When there are problems with the launch of the chainsaw, many immediately sin on the carburetor. In fact, there are several options and a prerequisite for a malfunction may not matter which one:

  • Air and/or fuel filters are clogged. The inconsistency is solved by cleaning filters.
  • Lack of fuel in the tank. Yes, there is such a reason. some owners are at the same time as an insignificant detail as the gas station refueling and think that pairs of l. There will be enough gasoline for six months. Apart from this, fuel in the tank should not be stored for more than 14 days, t.to. gasoline evaporates and disappears octane number.
  • Check the pipe from the fuel tank into the carburetor. it could clog or break off, so gasoline does not enter the tank.
  • No spark on the spark plug. Why there is no spark. there can be many circumstances: there is no contact, it is necessary to change the candle or it was flooded. Why floods the candle on a chainsaw is another question. But if this happens, it is required to dry and install the ground, then check the presence of a spark. If the candle has a strong cargo, it is recommended to change it.
  • Check the muffler for the presence of soot. If there is a dozen, painfully clean the muffler, but it is still recommended to take the chainsaw to the service center so that the cylinder and the piston are checked there, t.to. Nar-a sure sign of incorrect work specifically parts of the cylinder-piston group.
  • The carburetor clogged. How to correctly adjust the chainsaw so that the carburetor worked perfectly, is considered in a separate article.

If none of the above methods have helped, it means that the reason is more serious-the breakdown of the 1st of the nodes of the connecting rod piston group. In this case, it is recommended to take the chainsaw to the service center.

Engine starting problems

It is very important to correctly determine the cause of the malfunction, because otherwise we simply can not eliminate it. There is a chainsaw, almost new, the engine works fine, but the chain does not saw. Give gas. the engine reacts, but then tries to stall, t. To. I am not special as I do it myself.Yes, by the way the chain is spinning tight, but the chain does not work. The chain on the tire is not. If there are no extraneous sounds when trying to start a chainsaw (knock, rattle, etc.D. ) then very often it turns out so that there is no breakdown on the very thing. For example, if you do not correct the chainsaw and pull on the leak for a long time, then the engine simply floods and start it very hard.

In order to properly start the cold engine of the chainsaw, set the lever or switch to the damper position closed. Then you need to pump the mixture into the carburetor, if there is a fuel pumping pump. Stretch the starting handle until the engine resistance becomes tangible, and jerk vigorously in amplitude, taking the hand to the side. After two or three such movements, the engine should first start, and then stall. If this does not happen, then it is necessary to transfer the lever to the position of half.gas or just to the working position and continue to run the chainsaw in this mode. In many chainsaws, the “half.gas” is recorded automatically when stretching the air damper. Some models have the keying switch, it is important to make sure that it is turned on.

If the engine does not start, then the first thing to do, twist and inspect the spark plug. The chain should not move at idle; chainsaw will lose power or not. There are cases, at the factory in the cold season, fill the combustion chamber with fuel. Then you also need to unscrew the candle, dry the combustion chamber by the idle factory, clean the candle, screw it up and repeat the launch. If the gas notes do not work, the chain does not spin the circuit does not spin. It is advisable to immediately check the presence of a spark. we put on a twisted candle on a cap with a high.voltage wire, put it on a cylinder and twitch the starter. Visually observe a frequent blue spark. good. We screw the candle in place and start. If there is no spark, we change the candle and try again. Again not. we check the connection of the high.voltage wire to the candle, the reel and the ignition system.

Chain protection protection. How the chain brake works.

And on professional electric saws and models for the home, protection is installed, which disables the power to fall when the tool falls.Before turning on your left hand, take the front handle and pull the brake block in place.If an uncontrolled saw explosion occurs, its tire begins to rise sharply, moving up and towards the operator. At this moment, the brake lever screen is pressed against the outer part of the forearm and moves forward, as a result of which the brake is activated and disables the power, moving the plastic rods.

Electric saw is an unexplored tool in a summer cottage or in a personal house. She simply cooles with the cut of thick branches, boards and various wood material. The most reliable tool has its own degree of wear, sometimes it is necessary to correct small or large breakdowns. Repair of an electric saw in artisanal conditions is likely only sometimes and in the presence of certain abilities and inventory. Often the tool has to be given to the service. Alas, of course, certain breakdowns that are simply corrected without the help of others.

Review of the design of the electric saw chain

To take possession of electric saw repair abilities, you need to be aware of their design. The main element that cuts the material is the saw chain, which is driven by the motor. The chain itself is a span of cutting links, which are fastened with each other with hinges. The movement of the chain is made according to the plate called the tire. This part of steel of quality work is made, which is not susceptible to chips, scratches and corrosion. this is the main indicator of the property of the tool. The tires are distinguished by the designs:

The welded tire is something similar to the “sandwich”, which is welded from 3 components into one, while the driven star is glued into the design. A whole design with a change of tip is a product of the 1st sheet, normal for tool tools of a large length. In such a bus, the main load lies on the roller bearing of the driven star. A solid configuration allows you to reduce friction loss by 8-10%. If a tool with a solid tire made of solid alloy materials, then it normally suits work with the highest load, also for operation in the circumstances of the presence of sand, dust and dirt.

While working with an electric saw, at least some configuration, do not forget about the ability to appear “reverse impact”. Tooling the tool towards human work. This situation appears if the very end of the saw tire rests against the processed material. To avoid injuries under these circumstances, the manufacturers of the domestic will equip the saw automatic brake of the chain.

2.four. The automatic brake of the chains is also called inertial drives, which works thanks to the shield in front of the human left hand. Before work, such a shield is put in a position closer to the hand, so that the design of the need is intended for which it is rapidly activated. If the moment of the 2nd turnover appears, then the operator’s hand rests on this shield and the chain stops. The position changes and by the impact of inertia. Such a system allows you to reduce the possibility of repairing chain electric saw, because at one time its main mechanism will not be damaged.

Another system that prevents wear and breakdown. automatic lubrication of the chain. Oil is poured into a special reservoir, which at one time of the operation of the saw is transmitted through the oil pump to the driven star and chain. Some models even have an oil supply controller, because with different intensity of work, you need a different amount of its number. For example, repairing an electric saw Makita involves an inspection that allows accounting (software) of the oil supply (software).

Signs of breakdowns and independent repair of the chainsaw motor

One of the most frequent breakdowns of each chainsaw is the malfunction of its motor. Determine that the reason lies in this, is quite simple. Several signs may indicate this problem:

Stihl Chainsaw Chain Oiler Not Working? Check This First To Fix Oiling Problems!. Video

  • The chainsaw does not start;
  • The tool engine works unstable and very noisy;
  • The motor manages to start, but it constantly stalls;
  • The motor overheats very quickly;
  • Basopile only works on the suction;
  • The motor smokes strongly, and the power, while falling.

If you do not know how to make a chainsaw to work quietly, then, first of all, you will need to study its design. Only after that can you begin an independent repair of the tool.

The chainsaw does not start

When there are problems with the launch of the chainsaw, many immediately sin on the carburetor. In fact, there are several options and a prerequisite for a malfunction may not matter which one:

  • Air and/or fuel filters are clogged. The inconsistency is solved by cleaning filters.
  • Lack of fuel in the tank. Yes, there is such a reason. some owners are at the same time as an insignificant detail as the gas station refueling and think that pairs of l. There will be enough gasoline for six months. Apart from this, fuel in the tank should not be stored for more than 14 days, t.to. gasoline evaporates and disappears octane number.
  • Check the pipe from the fuel tank into the carburetor. it could clog or break off, so gasoline does not enter the tank.
  • No spark on the spark plug. Why there is no spark. there can be many circumstances: there is no contact, it is necessary to change the candle or it was flooded. Why floods the candle on a chainsaw is another question. But if this happens, it is required to dry and install the ground, then check the presence of a spark. If the candle has a strong cargo, it is recommended to change it.
  • Check the muffler for the presence of soot. If there is a dozen, painfully clean the muffler, but it is still recommended to take the chainsaw to the service center so that the cylinder and the piston are checked there, t.to. Nar-a sure sign of incorrect work specifically parts of the cylinder-piston group.
  • The carburetor clogged. How to correctly adjust the chainsaw so that the carburetor worked perfectly, is considered in a separate article.

If none of the above methods have helped, it means that the reason is more serious-the breakdown of the 1st of the nodes of the connecting rod piston group. In this case, it is recommended to take the chainsaw to the service center.

Electric saw does not twist the chain

If an electric saw does not twist a circuit, then the reasons can be like that:

If you do not clean the tire after work with a saw, then the accumulation of sawdust with butter in space near the star will lead to its jamming. Clean the entire space near the asterisk using thin wire and any penetrating fluid, for example, kerosene or WD-40.

Getting a chain on nails during operation, lack of lubrication, high load, without time to rest the device, rapidly reduces the working resource of the gears. Over time, the gearbox ceases to regularly fulfill its function. under the load, the chain will not spin. The solution would be to replace faulty parts of the mechanism.

The cost and repair of electric saws with a defect does not twist the chain

We have repeatedly eliminated the malfunction of the saw, the electric does not twist the chain and we know the reason for its occurrence. Below is a table of renovated devices.

Service
Diagnostics is free
Work 1500
Details In the table
| Denial of responsibility | Contacts |RSS