Reasons for the cessation of oil supply in the chainsaw. How to pull the chain on the chainsaw correctly?

Elimination of a malfunction on the example of a chainsaw “Partner 350”

The oil supply by the pump has a special adjustment. The lubrication of the chain of the chainsaw occurs constantly when the apparatus is working. Therefore, the chains of the chainsaws have a long service life.

During operation, the chain requires constant supply of grease. Its continuous feed should be ensured. This requires the design of the device. During the operation of the chainsaw, the oil leaves the groove of the tire, instantly absorbed by sawdust.

For this reason, the lubrication of the chain occurs in automatic mode. Some chains of the chainsaws are equipped with a system that regulates the exact amount of the submitted lubricant material. The cheapest devices are equipped with a manual pump, which works on the drive located on the handle.

Scheme for checking the operation of the chain lubricant system.

For good lubrication of the chain, special oil was specially developed. After work it quickly decomposes, so there is no violation of the environmental system. You can also use brand oils:

Absolutely not suitable for work transmission lubrication. In winter, it freezes, as a result, the oil system is clogged, you have to completely clean it.

In winter, the lubrication of the chain requires special attention. With severe frost, it turns and resembles a petroleum jelly. Therefore, to work in winter, it is necessary to lubricate the chainsaws with special winter oil with a more liquid consistency.

There is no way to purchase such a lubricant. To solve the problem, diesel fuel is mixed with oil, the viscosity decreases. However, if previously flooded oil remains in the crankcase, then the additive of the diluted will not give a positive effect, the system channels will remain clogged. There is only one way out. heating a chainsaw in a warm room.

With not very large solidification of the chain oil, you can try to melt it by launching the saw at small idle speeds.

Problems when lubricating the chain

The main tasks with the lubricant of the chain that the owner of the chainsaw may face during the tool:

Reason: not enough oil for lubrication, the filter clogs, the thread on the gear of the pump breaks.

Such a malfunction is eliminated by the substitution of the filter and the addition of oil to the crankcase, substitution of the thread.

Read Husqvarna Leave 130 Video Review

Reason: You can recognize such a breakdown in the presence of oil spots in the lower part of the chainsaw. To eliminate the task to the seat of the hose seat after its fixation, a sealant is applied to avoid oil leakage during the upcoming operation.

Oil does not enter the saw chain

How to reduce oil supply to the chain chain

The chain of the chainsaw is not lubricated

In the process of long.term operation of the chainsaws, some of its elements and the components can become inconspicuous.

How to adjust the oil supply to the chain of the chainsaw?

Adjustment of the oil supply level is necessary in cases of operation of the tool in difficult conditions. A shaft with an eccentric installed on it is responsible for the level of feed, which rests on the pump plunger.

The rotation of such a shaft shifts the plunger relative to the longitudinal axis. This allows you to increase or decrease the volume of the pumping chamber of the pump and quite accurately adjust the level of supply of working fluid. To do this, at the lower end there is a groove, with which adjustment is performed.

As a rule, access to the screw opens at the bottom of the chainsaw. For example, in order to adjust the oil supply to the saw, the Ural family of the Ural family must be performed: the following actions must be performed:

  • In the lower part of the saw, a radical screw is glad with a tire. He is located next to the Stampovka, which shows the direction of his rotation;
  • Turn the shaft with a screwdriver in the direction of increasing or decreasing oil supply level.

When performing these actions, it should be remembered that the shaft is designed to turn up to 90⁰. Applying a lot of effort will lead to breakdown of the screw fixators and the possible stopping of the oil supply to the friction surfaces.

How to clean?

After removing the pump, it is necessary to perform a visual inspection of the body and individual elements

Particular attention should be paid to the condition of the internal part of the body in which the plunger rotation

In order to disassemble the adjustable oil pump, it is necessary to perform the following algorithm of action:

  • Using a screwdriver with a flat end, remove the plastic plug located in the end of the pump;
  • Push the drive gear aside;
  • Without releasing the gear, dismantle the adjusting shaft, pulling it to the side;
  • Remove the plunger from the landing hole;

After removing and analyzing the oil pump, it is necessary to examine its internal surfaces for the presence of deformations and traces of excessive wear. If necessary, replace the failed elements.

The inlet and exhaust channel must be cleaned with a probe made of thin metal wire. The remaining contaminants can be removed with a stream of compressed air. The assembly of the oil pump elements is in the reverse order.

We recommend watching a video whose author clearly shows how to disassemble the oil pump.

Knowing the device and principle of operation of the plunger oil pump installed on the chainsaw, you can independently clean it and replace it. This does not require the use of special skills or the use of a special tool. All work, with a sufficient amount of free time and desire, can be made on their own.

Reasons for the cessation of oil supply in the chainsaw

A brief overview why the oil in a chainsaw stopped supplied to the tire from the tank support our channel than it could.

The engine turns on for average speeds and warms up for about 10 minutes. The screw responsible for adjusting the idle stroke should move clockwise. It is released only when the engine arrives in the stable functioning mode. Need to be controlled so that the chain does not move during this process.

In idle mode, the engine may stall (reason. here). In this case, you need to immediately bring the adjusting screw clockwise to the stop. Sometimes the chain begins to move. In this case, the adjusting screw should be twisted in the opposite direction.

Principle of operation

The main node of the system is the pump. The principle of its work is as follows. With an increase in engine speed, the gear installed on the main shaft, through the worm gear, the pump shaft drives in motion. In turn, the rotation of the shaft creates a certain pressure in the oil line, which makes the oil move along it towards the tire.

The end of the oil channel is located at the place of contact of the tire with the tool card, where there is a longitudinal groove on which its oil channel gets when installing the tire.

The groove is necessary to ensure the supply of oil to the tire, regardless of the degree of tension of the chain of the chainships. Simply put, no matter what position the tire is at the time of operation, the oil will fall through the groove through the groove.

Then a chain is included in the lubricant process, on the links of which, depending on the model of the circuit, there is either a groove or a hole through which the oil is accelerated over the entire bus. With an increase in engine speed, the oil supply speed also increases.

Some models of the chainsaws are equipped with pumps, which additionally have the adjustment of the bandwidth, and if necessary, the amount of oil supplied by the lubrication system can be increased or reduced.

This function is satisfied with convenient, t. to. allows you to save and not spend excess oil.

How to Sharpen a Chainsaw | Ask This Old House

How to adjust the oil supply to the chain of the chainsaw. an expert on technology

I start a heading called “Likbez” in which I will talk about the details and nodes of the chainsaws, their design, the reasons for the failure and about the methods of repair.

Open this section of the oil pump. Oil pump in a chainsaw is necessary for lubricating the saw chain during operation. In most cases, a plunger oil pump is installed. Located an oil pump under clutch.

The device of the oil pump of the chainsaw:

To get to it, you need to remove the clutch (the whole process can be seen in detail on the video. Thanks to the author of the video Evgeny Kravchenko for the detailed story!).

This is what the oil pump looks like after filming:

The figure is very clearly visible a plunger in which there is a groove on the tail. This groove is needed to capture the necessary portion of oil and supply it through the hose to the saw tire and further to the chain. Rotation of the plunger is given by an asterisk of the clutch drum. Accordingly, we get the required amount of oil at any engine speed, since the engine speed and the plunger rotation frequency are interconnected.

Many chainsaws have the ability to adjust the amount of oil supplied. The adjustment is carried out by rotating the screw, which reduces or increases the amount of oil captured by the plunger. The screw is located below the pump. (cm.a photo).

Malfunctions of the oil pump and lubrication system:

  • The most common reason why the oil lubrication is ceased to be supplied is the output channel clogged. In this case, you just need to blow the channels. The channels can also be clogged on the bus. Just clean it.
  • Oil flow during downtime. Several reasons are possible here: 1.Cracks in the oil pump body.2.Check the integrity of the hoses and their fastening.
  • Insufficient lubrication of the chain. As I already wrote above, on some chainsaws, it is possible to adjust the amount of oil supplied. If there is no such adjustment, then again several Air leaks through cracks in the hoses, pump housing, or in places of attaching hoses.2.The boots were erased on the oil pump drive. In this case, replacement. This also applies to the plunger.
  • Large oil consumption. This malfunction may occur due to: 1.Incorrectly installed tire2.Oil pump output. In fairness, it is worth noting that many chain oil consumption for the lubrication of the chain is great in nature. Reduce its consumption, using specialized oils for lubrication of circuits.

Diagnostics and repair of the oil pump and the lubrication system of the chain of the chainship

Chain lubrication system

Each chainsaw, regardless of its model, brand, and class has approximately the same structure. It consists of several important nodes, among which the lubricant system. Without the latter, the work of a power unit is impossible.

Due to the functioning of the compulsory lubrication system, the tool chain reduces the risk of strong wear, which is guaranteed under the conditions of constant friction of the carved element on the guide tire, inevitable heating.

When lubricating the chain mechanism, friction softens, at the chainsaw operator the need to repair this element or its complete replacement occurs much less often.

What is a compulsory lubricant system?

STIHL chainsaw system and a given node in other power units are an identical node, which depends on the speed and number of roller speeds of the chainsaw, engine. The oil is supplied to the carved element, or rather on the tire, dosed. This is possible due to a special pump.

The chain of the chain lubricant transmits a consumable material with high adhesion characteristics to the saw set. It is necessary only to use the consumable material of this quality, since, only at the maximum speed of the chain mechanism can it be distributed evenly throughout the bus.

The device of the lubricant system

The lubrication system of the chain of the chainship, taking into account the manufacturer, the tools may differ slightly in design features used when creating this unit to details. At the same time, I do not affect the connection diagram of the system, as well as the total number of parts used.

  • oil tank placed in the crankcase of the engine;
  • tank filter (element, located directly in the tank);
  • The oil pipeline that looks like a small hose in diameter made of high.quality rubber;
  • The pump itself can be considered the heart of this node;
  • Effective from the engine on the heart of the node worm gear (worm transmission).

In some works of specialists in the repair of power units, the guide tire is not simple as a saw set, but as one of the components of the lubricant system. Why is that? This can be explained by the presence of special holes in this bus through which oil is supplied. By the way, the chain itself can be considered a participant in the transportation of lubricants, since this mechanism also has parts associated with the distribution of oil.

By what principle this node works?

The heart of the node is the pump, consider the principle of its functioning.

  • As soon as the engine speed increases, the gear of the main shaft using a worm drive makes a pump shaft work.
  • When the pump shaft is operating, pressure is created, which is transmitted to the oil line, which pushes the oil towards the bus.
  • The end of the lubricant canal is located at the junction of the power unit card and the guide tire, where the longitudinal groove is placed. The latter and there is a lubricant.

What function does the groove perform? It provides oil supply to the guide tire, it doesn’t matter what the tension level has. This is a guarantee that the oil will enter the tire even when it is located in a non.standard position at a working moment.

reasons, cessation, supply, chainsaw, pull, chain

Do not forget that the chain mechanism takes part in the process of lubrication. Depending on the structural features, the chain has holes or grooves through which the lubricant is distributed along the tire. The oil will enter the tire faster as soon as the engine speeds become higher.

Certain models of the tool have pumps that can be additionally adjusted (the operator will be able to adjust the bandwidth of the pump, depending on the volume of work and operating conditions of the saw). If there is a need, oil supply is reduced, if you need to increase it, the appropriate setting is carried out.

Be sure to read the article where the feature of the oil supply to the chain of the chain of the stihl chain. The system may vary depending on the brand of the chainsaw.

The main plus of such a function is the ability to save consumable. By the way, if you are interested in which oil to lubricate the chain of the chainsaw, choose what is recommended by the manufacturer of your power unit.

Breakage and capable of their elimination

Considering the types of malfunctions of the lubricant, you can highlight two of their categories:

  • general breakdowns found in all types of power units;
  • individual, which depend on the type of pump, on the features of the transmission of the worm type, on the structural other features of a certain chainsaw.

Important! If the lubricant system does not work, use the saw is not recommended. So you spoil not only the chain, but also the guide tire, as well as the main star, which leads to the need for large investments in the repair of the device.

“Symptoms” of a faulty lubricant:

  • The chain mechanism is dry, pale, the shine is absent;
  • The chain after installation quickly stretched;
  • The guide tire heats up, its paint is paid;
  • The oil remains in the previous volume in the tank, despite the intensive use of the tool;
  • The effectiveness of the cutting of the backup is significantly reduced.

All this indicates a malfunction of the lubricant or its functioning with interruptions.

If the consumable is received, then the reason for the problematic operation of the lubricant, most likely lies in the clogged filter, which can be cleaned or replaced with a new. If possible, after this manipulation, the supply of consumables is regulated.

If the consumable is not received, then it is necessary to conduct additional diagnostics, since, apparently, the problem is more serious.

Pay attention to the fact that you need to dismantle the tire to check the operation of the lubricant system. Alternatively, the end of the tire is directed to the side (we use chock) from the direction of the cut, maximizing the momentum, hold the tire (its end) 10 centimeters from chock. When supplying oil, you will see the appropriate spots.

What to do if there is no oil supply?

As we have already found out, you need to conduct additional diagnostics. To do this, analyze the lubricant system. Keep in mind that in some models it drank it with a complete disassembly of the tool. So, just in case, arm yourself with appropriate repair tools. If you have no experience of analyzing the saw, trust this business to a professional.

Repair and adjustment of the lubrication system of the chain of the chain

There is a main method for checking the oil supply without removing the tire: for this, it is enough to hold the chain operating at full speed, above the clean surface. By the density of the formed strip, it will be possible to judge the supply of oil.

A common problem is a small oil supply in order to eliminate it:

  • check all the channels through which the oil enters the tire, clean them by purging with compressed air;
  • Assess the condition of the worm drive of the pump, check for the presence of mechanical damage. Replace all worn out and broken elements with new ones;
  • Check the oil pump. Sometimes it is enough to change the plunger, it is he who can fail prematurely due to excessive dirt hit. But if there are any cracks and more serious violations, then in this case you will have to buy a new pump.

With a significant flow of oil, it is necessary to check the tightness of the pipes and fittings of the oil pump, replace the sealing elements.

Which oil can be used to lubricate the chain?

The oil for lubrication of the chainsaw should have high adhesion, so as not to fly from the end of the tire by inertia.

There are several basic recommendations that oil should be poured to lubricate the chain of gasoline saw:

  • Do not use working out for lubrication of the chain of the chainship. Such oil contains different impurities that will definitely remain on the piston group of the tool. In addition, the processing has absolutely no adhesive properties.
  • It is important to use the oil recommended by the manufacturer of the chainsaw.
  • You can not use motor oil for lubricating the chain of the chainsaw, as it is too liquid, which will lead to increased heating and wear of the saw headset. The same applies to transmission oil.

With regular maintenance, cleaning and using high.quality oil, the chain will last without complaints for a long time.

Reasons for the cessation of oil supply in the chainsaw

A brief overview why the oil in a chainsaw stopped supplied to the tire from the tank support our channel than it could.

The fuel system of the chainsaw: 1. fuel filter, 2. carburetor, 3. manual pump pump pump.

If you correctly adjust the carburetor, fuel will be spent in the permissible volume. Otherwise, it will end too fast.

Slow reduction of fuel during the operation of the saw is a normal process. If it is absent, the chain is lubricated incorrectly, so working with a chainsaw should be coordinated. It is necessary not only to be able to eliminate breakdowns, but also to identify them on their own.

You can change the intake of fuel manually. The correct operation of the lubricant is determined by bringing the tire. If oil spray appears, then everything is established correctly.

It is desirable to cut with a significant amount of lubricant. If there is work with soft wood, a small amount of fuel is served.

The chain should always be well lubricated. This will avoid smoke and further failure of the entire chainsaw. If the oil leaks or does not arrive at all, it is necessary to identify the cause of the breakdown. It is not recommended to operate the tool before repair.

When choosing fuel, you need to do it right. The desire to save money leads to the fact that the chain quickly fails. In order to avoid unpleasant consequences, it is undesirable to choose oil, the manufacturer of which is China. Preference should be given to original firms. In their price category, they are much higher, but their quality is better.

Elimination of problems associated with the work of the chain

In the operation of the chainsaws, it is necessary to constantly monitor the lubricant of the chain. After all, it is this part that works in the most difficult conditions. The chain is subjected to constant overheating, dust and abrasive particles are clogged into it. All this negatively affects its life. Correct the situation will allow a special lubricant. It is submitted to the chain from the tank, thereby ensuring unhindered work.

If there is no lubrication during operation, a high probability of overheating remains. When the oil does not come, the chain begins to stretch. In this case, the probability of its jamming or spontaneous jumping is maintained, as a result of which a person can get a serious injury.

The channels through which the fuel is supplied can be clogged with small particles, so it is advisable to periodically clean them. It is important to monitor the level of oil in the tank. Garbage in the channel becomes a common cause of non.earnings of the brake of the quapi. This can negatively affect work.

Constant channel cleaning and general care for the chainsaw will allow the tool to function for a long time.

But what to do if all the recommendations are respected, and the oil still flows. You need to verify the proper operation of the chainsaw. It is likely that she was incorrectly collected. If the breakdown was not detected, it is recommended to take it to the workshop. In some cases, it is necessary to replace the pump, but this must be done if the new drank. Old tools leak due to wear of the tank.

The current state of the chainsaw can only be evaluated by a specialist. In the absence of knowledge or uncertainty in one’s own strength, it is advisable to entrust the instrument repair to a professional.

well, there is actually a stream and shouldn’t go.

I fantasize: another option-any container from which something follows should not be sealed. Suppose a Ural chainsaw in the fuel tank, in the lid. a specially conceived two.million.member hole, sawing with a full tank. all the pants in gasoline in the gearbox there too. a through hole. From where the air falls into the capacity of imported chainsaws, I have no idea, I just didn’t have to work, it works and it works. Like it or not, none of them pours out. But he must somehow get there, otherwise none of them will go if there are others, there are no more real options-maybe a certain hole is clogged, a vacuum is created, the oil does not flow. If the oil first goes vigorously, and then everything is worse and worse, you might think about this topic.

General concept of the lubrication system of the chain of the chain

To understand how important the choice of chain oil for the chainsaw is, we will consider the principle of operation of the lubricant itself on the example of the STIHL 180. This model is chosen as one of the most common modifications of the chainsaw from Stihl.

The STIHL chain of the chain of the chain 180 consists of several main parts:

When A Chainsaw Bar Needs To Be Replaced!

  • expansion tank;
  • tubes of the supply of lubricants from the tank to the pump;
  • oil pump;
  • channels for supplying lubrication to the tire (on some saws, the intensity of oil rolling into the tire can be adjusted);
  • channels inside the tire for the distribution of lubricant over the entire working surface of the saw headset.

The intensity of the lubricant supply for the chain of the chain of the Stihl 180 chainships in the general case is not manually regulated. You can adjust the oil supply to the chain of the chainsaw in some other models (for example, at Husqvarna saws).

And in this saw there is a simple rule: the higher the engine speed, the more intensively the pump rotor rotates and in a larger amount the lubricant fluid comes to the saw.

reasons, cessation, supply, chainsaw, pull, chain

subtle settings without the use of the methods that are not provided for by the instructions for the operation of the methods are absent.

Oil is poured into a special tank with each refueling fuel. The designers worked out this chainsaw in such a way that after the production of fuel in the expansion tank, oil should still remain in a small amount. That is, with proper operation, the likelihood is excluded that the chainsaws will work on dry.

The lubricant system works as follows. The crankshaft through kinematic connection drives the rotary oil pump of the simplest structure.

The oil pump creates discharge and sucks grease from the tank. Then he drives it under pressure into the tire system system. Oil enters the driven teeth of the chain and spreads throughout the headset. The chain, the working surface of the tire and its front needle bearing are lubricated.

STIHL chainsaw stalls. does not develop momentum

All STIHL chainsaw systems function well, ensuring the launch of the mechanism. But sometimes, with confident work of idle, the saw does not gain revolutions at the load, interruptions begin in the motor. This means that there may be serious reasons requiring repair: to unbalance the carburetor screws, the end of the engine resource, breakdown of the candle or ignition coil, wear of the piston group.

But, most often, the engine does not develop turns, or may stall, when the check valve is out of order, a vacuum is created, which causes malfunctions. To repair the valve quite time.consuming, so it is better and faster to replace the oil tank cover, its cost is quite affordable.

Features of maintenance and independent repair of chainsaws of the brand Husqvarna (Husqvarna)

Husqvarna chainsaws are indispensable assistants in the household. With the help of gasoline motorized equipment, different works related to construction, logging and simple cutting of branches can be performed. With proper handling of the tool, it will serve for a long time, but during operation as a result of intense loads, different failures occur in work.

If small breakdowns are detected, they do not turn to service centers and workshops, the current repair of the Husqvarna chainsaw is performed independently, while it is necessary to investigate and disassemble the likely causes of defects and ways to eliminate them.

Why not start and what to do

Among the malfunctions of the Husqvarna chainsaw, the engine is highlighted. The motor is either completely impossible to start, or it starts poorly.

When asked why the chainsaw is not started, there is no unequivocal answer. The main assembly unit of the tool is the engine. The stability of the work is influenced by the following conditions:

For each factor, his working knot is responsible:

  • for the combustible mixture. carburetor;
  • for the air. the cleaning system, in particular, an air filter;
  • for a spark. ignition and candle mechanism;
  • Lubricant. lubricant and gasoline.

The common reason that the chainsaws are not starting is referring to the non.compliance of the launch algorithm. The motor unit should be launched only after the full assembly of all parts:

The brake of the chain is always turned on. In order not to lose control of the tool, you can not start in the air.

The launch of the motor in the cold state is carried out as follows:

  • Put the tool on the ground, step on the back handle with the right foot, the left hand is located on the front handle.
  • The saw is in a stable state, the chain does not apply to the soil.
  • Take the starter handle with the right hand, pull the cord, while it is not twisted around the hand.
  • As soon as the first outbreak occurs, they return the lever of the air damper to the initial position, opening it, and repeat the start.
  • Gas and release. The lock is turned off.
  • They transfer the engine to idle speed due to the rapid shutdown of the gas limiter.

The launch of a warm engine is carried out in the same sequence, but without opening the damper.

If the start is produced correctly, but the engine does not work, the possible reason is the absence of fuel in the tank, or the fuel chamber of the carburetor is not filled. Check the tank and the camera, fill them with the mixture.

If the incendiary system is faulty, the candle is inspected and checked for the presence of spark on the electrodes. If it is wet (gasoline floods the candle), and the spark is not detected, the part is turned, dried or changed. If it is dry, the spark is present, then the problems in fuel equipment are clogging, depressurization of the gas intake.

Magneto malfunctions are also confirmed by a weak spark. Despite the ignition, there may be no outbreak in the cylinder, while a candle turned out of the cylinder, wet. The method of elimination is the purge of the cylinder with open carburetor shutters.

See “How to make a repair starter with your own hands

The electrodes of the system are covered with soot or oiled. This is eliminated using a metal brush. The candle is washed, cleaned, giving gas to evaporate.

Violation of the gap between the side and central electrodes leads to a poor start. Normal interval indicator-0.6-0.7 mm. It is adjusted by the bending method.

In case of damage to the ceramic insulator surrounding the central candle, or live cores of wires, the wires are replaced.

If it starts and stalls

Husqvarna chainsaw starts and stalls when you press the gas. This leads the jacket of the carburetor jacket and the contamination of the fuel tank filter. The defect is eliminated as follows:

The next reason why the chainsaws stall is pollution of the muffler with exhaust resins. The issue is solved by cleaning.

Distance of piston rings affects the work of the cylinder.piston group. In the presence of a backlash during the audit, the details are replaced.

When starting the engine, the unit may also stall:

  • With increased dryness, the channels supplying oil are cleaned, the elements of the connection of the fittings with the tubes are examined;
  • When oil leaks in the connecting points or the presence of cracks on the tubes are sealed with sealant.
  • If the piston rings in the grooves are buried;
  • with the wear and elasticity of the rubber sealing of the crankcase;
  • leakage of the cylinder connection to the carder;
  • due to improper installation of the ignition force angle;
  • as a result of contamination of the ribs of the cylinder and the fan lattress;
  • with strong load immediately after buying a new engine.

How to set up a chainsaw

In the process of repairing the Husqvarna chainsaws with their own hands, they reveal some malfunctions that appeared as a result of incorrect ignition adjustments and carburetor settings.

The mechanism is responsible for the power of the motor and is set up for operation, taking into account the necessary conditions:

By default for productive work, the factory settings of the Husqvarna chainsaw carburetor are installed during the tests.

The device has 3 tuned areas:

To configure the chainsaw, after the, they adjust the carburetor: first they are engaged in a “L”, then the screws of XX “T” and “X”. With the rotation of “l” and “x” clockwise the quality of the working mixture “air. fuel” worsens, when rotation against. is enriched. Rotation of the screw “t” clockwise increases the speed of xx.

Repair of the carburetor is carried out by a specialist.

How to dilute gasoline for a Husqvarna chainsaw

For productive operation and increase the service life at high power, they observe the proportion of oil and gasoline for the chainsaw, measuring the measurement of the fuel mixture ingredients with a measured tank. When preparing even a small amount, small inaccuracy affects the quality of fuel.

For dilution, use high.quality gasoline with a minimum octane number. Ron 90. If the parameter is less than the recommended, the engine begins to knock, which leads to its overheating and increasing the load on the bearings. With constant work at high speeds, gasoline with an increased indicator is chosen.

malfunctions of the chainsaw. with your own hands

Chainsaw is a very useful thing in the household. After all, a lot of tasks of home construction, gardening and landscaping of territories are quickly and relatively easily solved with her. Chainsaws are a sufficiently capricious tool, but with proper handling, this is an indispensable assistant.

Who has one vulnerable place: guide tire. It is on it that most of the operational loads account.

And this means that the knowledge about why tires more often than other parts of the chainsaws are out of order and how to correctly replace them with the case of necessity, will help you save money and time with seasonal or design work with an instrument.

The chainsaw does not start

In case of difficulties with the launch of a chainsaw, many immediately sin on the carburetor. In fact, there are several options and any reason for the malfunction can be any:

  • Air and/or fuel filters are clogged. The problem is solved by cleaning filters.
  • Lack of fuel in the tank. Yes, there is such a reason. some owners forget about such an insignificant detail as a gas station refueling and think that a pair of liters of gasoline will be enough for six months. In addition, fuel in the tank should not be stored for more than 14 days, gasoline evaporates and is lost octane number.
  • Check the pipe from the fuel tank into the carburetor. it could clog or break, so gasoline does not enter the tank.
  • No spark on the spark plug. Why there is no spark. there can be many reasons: there is no contact, you need 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 reinstall, then check the presence of a spark. If the candle has a strong fog, it is recommended to replace it.
  • Check the muffler for the presence of soot. If there is a dozen, carefully 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, Nar-a sure sign of improper operation of the elements of the cylinder-piston group.
  • The carburetor clogged. How to properly adjust the chainsaw so that the carburetor worked well, is considered in a separate article.

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

The engine stalls

The engine started, but at idle or at a load of a chainsaw stalls stalls. In this case, the same actions should be performed most often that described above.

How to adjust the chainsaw depends on when the problems begin:

Lubrication of the chain of the chainships: the principle of operation of the system and eliminate problems

One of the important systems of the chainsaw, work without which is impossible, is the system of forced lubrication of the chain of the chain of the chain. It’s no secret that at the time of operation of the saw there is a friction of the chain on the tire of the chainsaw, which causes its heating and premature wear. To soften friction, the chain mechanism must be constantly lubricated.

The device of the lubrication system

Depending on the brand of the chainsaw, the details of the lubricant can differ a little structurally, but their total number and connection scheme remains unchanged.

The main components of the details of the lubrication system are:

  • Oil tank located, as a rule, in the engine crankcase.
  • Filtering element, installed in the tank.
  • Oil wiring, this is a small diameter hose made of oil.resistant rubber.
  • The heart of the system is an oil pump.
  • Worm gear gears transmitting force from engine to the pump.
  • The tire of the chainsaw, it can also be considered an element of the lubricant system, as it has special openings for oil supply, by the way, the chain itself is involved in the transportation of the oil and, accordingly, also has some elements designed specifically to ensure lubrication.

Principle of operation

The main node of the system is the pump. The principle of its work is as follows. With an increase in engine speed, the gear installed on the main shaft, through the worm gear, the pump shaft drives in motion. In turn, the rotation of the shaft creates a certain pressure in the oil line, which makes the oil move along it towards the tire.

The end of the oil channel is located at the place of contact of the tire with the tool card, where there is a longitudinal groove on which its oil channel gets when installing the tire.

The groove is necessary to ensure the supply of oil to the tire, regardless of the degree of tension of the chain of the chainships. Simply put, no matter what position the tire is at the time of operation, the oil will fall through the groove through the groove.

Then a chain is included in the lubricant process, on the links of which, depending on the model of the circuit, there is either a groove or a hole through which the oil is accelerated over the entire bus. With an increase in engine speed, the oil supply speed also increases.

Some models of the chainsaws are equipped with pumps, which additionally have the adjustment of the bandwidth, and if necessary, the amount of oil supplied by the lubrication system can be increased or reduced.

This function is satisfied with convenient, t. to. allows you to save and not spend excess oil.

Lubricant malfunctions and how they are eliminated

The main malfunctions of the oil supply system on the chainsaw can be divided into two main types, these are general malfunctions inherent in all chainsaws and individual, which may vary depending on the type of pump and worm transmission installed on a specific model. Let’s start understanding the faults in order.

The work of the chainsaw, if the lubrication of the chain of the chainsaw is not carried out, is prohibited. This adversely affects the tire, the leading star and the chain, and can also result in serious repair costs.

Signs of malfunction of the lubricant system, checking its performance

  • The chain of the chainsaws is dry and has a pale tint without shine.
  • The circuit is relatively quickly stretched.
  • The tire is very hot and can even partially melt paint.
  • The tank oil is practically not reduced.
  • The effectiveness of the cut on a sharp chain has decreased

All these signs indicate that the lubricant proceeds with violations.

In order to check the supply of oil with a lubricant system, it is necessary to remove the side tire of the chainsaw and start it. Next, you need to slightly increase the speed observing the end of the oil line. If the oil comes, most likely its amount is not enough for normal lubrication and you need to clean or replace the filter and, if possible, adjust the feed.

In the case when it does not act, the problem is more serious and requires further diagnosis.

There is a method of checking the oil supply without removing the tire. To do this, it is necessary to direct the end of the tire to the side, for example, a freshly sawn chock from the cut side and maximize the speed, while you need to try to keep the end of the tire at a distance of not more than 10 cm from the chock. If oil spots begin to appear on its surface, then the oil is supplied.

Search for a malfunction

After it was determined that the oil is not supplied, further diagnosis is possible only if you completely remove the oil system. Of course, in some situations the filter replacement helps, but it is very rare.

Access to the oil pump of some models drank, it is possible only after complete disassembly, respectively, having no skills in repairing a benzo tool, it is better to entrust the repair to professionals.

The most common malfunctions

  • Oil hose cliff. It can sometimes be found during visual inspection. The problem is solved by the replacement of a faulty part.
  • Lack of thread on the shaft of an oil pump, its replacement will help.
  • Defective thread on the lead gear of the pump is similarly solved by the installation of a new part.
  • The absence of a main shaft rogue (relevant for some tools of tools, for example, Homelite).

Individual malfunction of the STIHL MS 180 lubricant system

Due to the fact that the Stihl MS 180 is one of the most common models of chainsaws, I would like to dwell on one malfunction inherent only to it and describe the method of elimination without replacing details.

Quite often on the Stihl MS 180 chainsaw, depressurization of the oil line is observed in the place where the oil pipeline coming from the tank is installed in the saw case. You can determine the malfunction by characteristic lubricant leaks on the bottom of the tool.

To eliminate the malfunction, it is necessary to remove the chainsaw handle, remove the hose from the landing hole, clean and degrease. After all these manipulations, apply a sealant to the hose and install a chainsaw in the housing.