Chainsaw Patriot 3816 DIY Repair

Table of Contents:

The principle of operation of the device and do-it-yourself service

A chainsaw is an indispensable tool in the life of a home master. With it, you can saw off an old tree, build a bathhouse or just a gazebo for relaxation. Sometimes this tool also becomes unusable. To solve the problem, it is not necessary to contact expensive specialized services, you can repair the chainsaw yourself.

DIY repair

To carry out repairs at home, the availability of spare parts, tools and relevant skills. For example, for disassembling a chainsaw, a homemade repair kit that will take a very long time to come in handy.

In some modern semi-professional and household devices, the appropriate tools are not included for adjusting the carburetor and disassembling the drive sprocket.

General Disassembly Principles

Basically, all chainsaws have the same components, which are dismantled according to a certain scheme. If the assembly of the saw is Chinese, then there is nothing to worry about: most often they are made in the likeness of European models. How to disassemble a chainsaw:

  • The clutch cover is removed.
  • The starter cover is removed. To do this, you need to unscrew the screws and remove the transverse handle.
  • To remove the handle, you need to remove the cover that closes the air filter.
  • The gas hose is removed from the nozzle cover.
  • The saw body is dismantled. It is necessary to unscrew the screws and remove the oil tank cap.
  • Before removing the ignition module, you need to disassemble the clutch drum: you need to rotate the crankshaft clockwise until the piston blocks the gas outlet.
  • Then you need to unscrew the clutch on the chainsaw and remove the coupling: you need to slightly hit it with a hammer.

Possible problems

The main problem that arises during the repair is the lack of necessary information on the repair. This is due to the fact that many foreign manufacturers believe that the saw should be disposed of after a certain period and production. Therefore, many masters have certain doubts, especially when repairing budget models.

But expensive professional models create certain difficulties:

  1. The first problem is to supply expensive spare parts.
  2. For maintenance and repair of some nodes, special equipment is useful.

Chainsaw Design

All chainsaws have the same design, regardless of whether the device, domestic (Ural, Cedar, Patriot 3816, Carver. Russian production with Chinese Partners) or foreign (Stihl, Husqvarna), for example, do-it-yourself repair of the Patriot 3816 chainsaw , like repairing a foreign device. The main components of the tool:

  • Engine.
  • Fuel tank.
  • Starter.
  • Handle.
  • The tire with a chain.

The general principle of operation of the chainsaw is simple. The master abruptly pulls the cord that starts the engine, and he, in turn, is the saw blade. Sometimes, malfunctions occur in the operation of the device, in order to eliminate them, it is necessary to dismantle the saw. Problems that may arise with a chainsaw:

  • It just won’t start.
  • Starts up, but after a while it stops working.
  • Does not work in cut.
  • Power is falling.

The main problems that arise are related to engine malfunctions (fuel supply, exhaust system, cylinder-piston system and ignition), or smaller problems (problems with the chain, lubrication, tire, oil seal). It is important to consider each issue in more detail..

If the chain simply broke, then it should be replaced with a new one. Problems with the solution of this problem should not arise. Repair of other parts of the saw can take up to several hours.

No matter how trite it may sound, if the chainsaw does not start, then you need to check the tank for gasoline. If there is fuel in the system, then a breather may have clogged, equalizing the pressure when the fuel was supplied. The breather can be cleaned with a sharp awl or needle. Candles are turned out with a candle key and cleaned with sandpaper. You can also ventilate the combustion chamber. After these procedures, the saw should start.

If the saw turns off automatically, then most likely the trigger mechanism is defective. But sometimes it happens that it is not in him. In this case, you need to turn out the candles and carefully inspect them. If traces of fuel are visible on them, then it means that the carburetor is incorrectly adjusted. The candle should be cleaned and placed back, having previously shut off the fuel supply.

If black soot is visible on the candles, then the matter may be in poor-quality oil, a poorly adjusted carburetor and an incorrectly calculated ratio of oil to gasoline. In this case, you also need to clean the candle and put it back.

During the test candles need to consider the distance between the electrodes. The optimum clearance is a distance of 0.5 to 0.65 mm. The used gasket must be replaced with a new one.

It is also important to check the device for a spark. This is easy to verify: you need to connect the spark plug with the ignition cable, use a pair of pliers to connect the cylinder and the nut of the spark plug, and then observe the presence of the spark. If it is not, the candle must be changed. If, when changing the candle, it turned out that the other does not give out a spark, then the problem may be inoperative contact with the candle or high-voltage wire.

Fuel supply

In addition to the above clogged breather, there may be other problems with the fuel supply. The main obstacles may be:

Junk fuel filter. To check the device for this malfunction, disconnect the fuel hose and see how the fuel flows. If the jet is weak, it may be necessary to clean the filter. The filtering device is removed through the filler hole of the tank and is cleaned, if the pollution is too strong, it is changed.

Professionals recommend changing the filter every few months, regardless of contamination.

Lack of fuel. In this case, the problem may lie in several factors. The first is air filter pollution. The problem is that the air is not delivered in sufficient quantities to the carburetor, which leads to poor engine performance. The filter must be removed, cleaned, rinsed and dried, and then put back.

The second reason is an unregulated carburetor. It, i.E., the adjustment is carried out with three screws.

And the last reason is the problem with the monolithic membrane or the contamination of the carburetor channels. As in other cases, it is necessary that the components are dry and clean.

Cylinder piston group

It happens that the engine does not start or malfunctions due to the low pressure in the cylinder. The malfunction may lie in the damaged piston, cylinder or bearings, dropping of the piston rings. You can consider the problem in general terms, for this you need to remove the muffler and inspect the system.

You can measure the compression in the engine, for this you need to place the compressor in the spark plug hole. After a while, you can draw conclusions based on the results of the measurement. You can consider the problem only by completely disassembling the system. If scratches or chips are visible on the piston, it must be replaced. The piston ring must be installed in its rightful place, clean and intact.

Chain lubrication system

There are several problems with chain lubrication. These include:

  • Oil leakage. If oil leaks, it is necessary to inspect the tubes for integrity at the junction with the pump fittings. Faulty tubes replace.
  • Lack of oil. Most often clogged channels.
  • Cracks and chips on the oil pump housing. To solve the problem, you need to replace the parts.

Chain brake

A chain brake problem may occur due to grease or sawdust entering the system. Here you need to clean all the elements from debris. In addition, the tape may become unusable, then it must be replaced.

It happens that some of the parts of the saw often become unusable than others, so they will have to be repaired more than once. Most often it is a tire, a drive sprocket, a chain, anti-vibration parts. To quickly repair and assemble the device, you must always have spare parts on hand.

Chainsaw Repair: DIY troubleshooting

A chain saw is an indispensable tool in the economy of any owner of a private house or summer cottage, as it greatly facilitates the life of its owner. Cut firewood, remove excess trees, cut a hole in the wall, put an extension and much more that can be done with a chainsaw. However, this tool requires special care, since it experiences considerable loads during operation, and in case of breakdown it is not worth immediately contacting the service department for help, but try to repair the chainsaws with your own hands. Firstly, it will save a lot of family budget, and secondly, knowing the design of the tool, you can easily carry out inspection and repairs on your own, without putting a lot of effort into it.

Self-repair of chainsaws

Chainsaw design and general fault classification

It is correct to find the source of the malfunction, as well as to carry out the correct and sound repair of chainsaws, for this you need to have a reliable idea of ​​its technical specifics. Repair of such equipment is not particularly difficult. Its schematic structure is quite simple. For convenience, the nodes in its composition can be divided into three types:

  • The main and very important element, without which further work is impossible, is a two-stroke engine running on gasoline. Permissible brands of gasoline are indicated in the device passport;
  • The second equally important component is its working part, which is responsible for sawing the materials themselves. These include sawing mechanisms;
  • The third connecting unit includes a system for supplying and filtering fuel, oil, engine ignition, exhaust gas, etc.

Chainsaw engine malfunction

Malfunctions are classified by two nodes:

  • Malfunction of the engine itself. It can’t start up, it stalls for no reason, overheats, smokes very much, works unstably with a minimum and maximum load. Therefore, repairs must be carried out on these units.
  • Malfunctions in the periphery. Here you can identify many symptoms that cause failures in her work. For example, if the chainsaw is muffled during operation or loss of power, it is possible that there is a blockage in the gas supply system or filter. If the saw is bad, then the chain may simply become dull. Repair should begin with the study of auxiliary components, which will require the least time and equipment.

For convenience, before starting repairs, you should divide the chainsaw into sectors and look for a malfunction directly where a problem is suspected. The manual also provides a brief description of possible breakdowns and how to solve them.

It should also be borne in mind that several factors can serve as sources for the same malfunction. Therefore, the ability to diagnose the cause of the breakdown is important, so that in the future to carry out repairs correctly and accurately. Before you begin disassembling and repairing the chainsaw, you should estimate the possible causes and try to work only with them.

What you need to fix the breakdowns

Chainsaw repair does not require a large arsenal of home tools. First of all, it is:

  • Screwdrivers. Cross and flat to remove the casing, chain or other components that are fastened with flat bolts and will definitely be needed in order to properly repair the chainsaw;
  • A set of cap and wrenches of different sizes. They will be needed when disassembling the engine and other moving parts. Repair of such parts sometimes involves dry cleaning, so they will be needed to scrape off excess dirt;
  • Key to remove the candle;
  • A diagram of the chainsaw itself to know how certain nodes work and how to properly service them.

DIY chainsaw repair, fuel supply system

The most frequent breakdowns requiring repair of their parts include problems with the engine and fuel supply system. It happens that it is impossible to develop the nominal maximum power of the chainsaw, or the chainsaw suddenly stalls after a while, or it does not work at all.

Fuel supply system

This happens in two cases:

  • Problems with the ignition of the fuel mixture;
  • Problems with the delivery of gasoline from the tank to the engine.

The search for the causes of failure and repair of the chainsaw should always begin with elements that require the least cost in time and money, namely with a spark plug. Its direct purpose is the generation of sparks and the ignition of a gasoline mixture with air. A regular visual inspection of this element can tell a lot and tell you where to start the repair.

  1. The absence of a spark in the gap indicates poor contact with the wire or a malfunction of the candle itself. It is necessary to check all the contacts and the candle itself. A new candle is installed in the cradle, and if it also does not give out a spark, then the problem lies in the contacts and the wire itself. You need to change them.
  2. A dry candle is the first sign that fuel is not fed into the carburetor at all. The cause of the breakdown is a blockage in the fuel filter element or breather. It is necessary to rinse, if not succeed, then change the filter. Manufacturers recommend changing it at least once every three months.
  3. Excessive fuel presence on the spark plug head indicates incorrect carburetor adjustment or incorrect start-up. Repair includes banal removal of the candle, which must be wiped with a dry rag. It is also necessary to check the chambers in which the fuel burns directly.
  4. The candle is covered in soot. This is evidenced by the excessive intake of a mixture of gasoline in the chambers for its combustion, poor oil quality, improper carburetor settings or the wrong proportion of oil and fuel. Repair here is carried out by washing the candles, then you need to wipe it dry with a rag. Clearances should also be cleaned with a sharp needle or awl. Problems with the carburetor arise, usually when its settings get lost, the membrane wears out (only its replacement will help here), there is a blockage in its channels (it should be disassembled and cleaned).

Chainsaw Filter Replacement

DIY chainsaw repair is always a difficult task even for an experienced person who knows almost everything about technology. Most of the time it takes to diagnose a malfunction, when you need to find the source of all problems with the equipment.

Silencer Troubleshooting

It happens that the engine runs quietly and without problems at zero load, and when it increases, it stalls or works intermittently. This is caused, as one of the reasons, blockage in the muffler. The source of clogging may be the products of combustion of waste materials, an excess of oil in the combustion mixture, or its poor quality. In such a situation, repairing the chainsaw will not be so time-consuming, since in order to eliminate the malfunction, it is only necessary to clean the muffler. Most often, the spark arrestor is clogged with the combustion products of gasoline vapors.

  • Remove the muffler. It is better to close the outlet opening with a cloth so that dirt does not get there;
  • Disassemble the muffler itself, if it is collapsible;
  • Rinse it with special detergents. You can use dry cleaning. This should be done using a respirator or other respiratory protective equipment, since carcinogenic substances are present in the remains of burnt products, which greatly harm our health;
  • Dry the muffler with a compressor, vacuum cleaner (blow action) or a regular hairdryer;
  • Assemble and install in place.

Repair of cylinder piston group (CPG)

Sometimes it happens that the engine is not able to achieve maximum power or start up for reasons of insufficient pressure in the cylinders. The source of such problems sometimes are faulty piston rings, problems with the cylinder, bearings, or wear on the piston itself. Therefore, chainsaw repair should begin with a visual inspection of the engine cylinders. Inspection is possible through the hole where the candle is installed to ignite the mixture. The review under such conditions will remain minimal, but a first idea of ​​the state of the working group at this stage can be obtained.

You can also insert a compressometer into the candle hole. Scroll starter or crankshaft. The pressure inside must be at least 8 atmospheric units. At lower values, the engine will not work due to insufficient created pressure inside. With a decrease in pressure, the engine power itself also decreases.

A more detailed picture of what is happening inside can be seen by analyzing it. To do this, remove the crankcase and visually inspect the piston. If there are chips, dents or scratches, it must be replaced. The piston pins must also be in good condition without damage and not loose. If this happens, then you should definitely change them.

The decrease in pressure inside the engine also consists in the failure of the piston rings. This can be immediately noticed, since the working ring is not covered with soot, it is free in the groove and does not hang out, it is pressed tightly inside the cylinder.

Replacing the chainsaw piston rings

You should also examine the surface of the inside of the cylinder. If it has already been developed, then it should be squandered.

Check carburetor and signs of the need to adjust it

The rated power of the engine and saving fuel consumption depend on the good condition of the carburetor. The chainsaw carburetor has no functional difference from the automobile. He mixes gasoline vapors with air coming through the pipe and feeds them further into the combustion chamber.

  • Duct or tube for supplying air;
  • A fuel pipe or fuel feed pipe for mixing with air;
  • Air damper.

A sign of the need to adjust the carburetor:

  • Strong vibrations due to unbalanced screws. The engine with a working carburetor works smoothly, the sound resembles a four-stroke stroke;
  • Damage to the protection cap;
  • Wear of the piston system, which already requires a different mixture in composition;
  • Involuntary engine shutdown, impossibility of its repeated or initial start-up;
  • Unreasonable increase in gasoline consumption, while the engine power can remain the same, and most often decrease;
READ  How to Change Stihl Chainsaw Oil Pump

Calibration Algorithm and Safety Precautions for Troubleshooting Chainsaw Carburetor

Calibration or fine adjustment of the carburetor must be carried out strictly as recommended by the manufacturer of the chainsaw. Often this procedure has already been done at the assembly stage in the assembly workshop. However, chainsaw repair sometimes involves carburetor tuning. This is due to its malfunction for technical reasons, failure of settings, etc.

Fine tuning is done with three bolts:

  • The bolt “L” regulates the fuel supply at low speeds;
  • Bolt “H” controls the highest fuel supply to the engine;
  • The “T” bolt adjusts the idle fuel supply.

There are two types of carb settings:

  • Basic or basic. It is carried out on the switched off engine;
  • Exact or final. It is carried out on a warm engine.

First, the bolts “H” and “L”, which regulate the flow of the fuel mixture at high and low revs, respectively, are tightened counterclockwise until they stop. Then they are rotated one and a half turns already clockwise. It is advisable, before starting the procedure, to mark with a pencil or felt-tip pen the initial position of these bolts, so that later they can be returned to the position in which they were before if there are problems with the adjustment. The fact is that with an unskilled approach to adjustment, there is the possibility of finally killing the engine.

Further adjustment takes place on the engine warmed up to the desired temperature. He is left working for 10 minutes. Next, they already fine-tune the idle speed adjustment bolt. It is rotated until the engine (its revolutions) reaches the minimum values. The engine should work stably, while the chain should remain in place (do not rotate).

Then you should check how fast the momentum is. To do this, slowly rotate the low-speed bolt another eighth of a turn. The maximum possible speed can be set using the tachometer and the adjustment of the bolt “H”. Next, you should once again check the carburetor idling.

Other chainsaw malfunctions

In addition to the main components, the chainsaw has a number of other less functional, but no less important components. Failures here also happen, but it is much easier to identify and eliminate them.

  1. System malfunction in the fuel vapor fuse. This may include a starter breakdown. It happens that his cable breaks, the return spring pops up or completely breaks. The contacts between the high-voltage wire and the candles wear out.
  2. The lubrication system itself is disrupted. The cause may be poor or inappropriate oil, or the lubricants themselves. You can even just add lubricants to the necessary components on time.
  3. It happens that the brake for the chain starts to work incorrectly. To eliminate this problem, you need to configure it correctly. Clean, as it happens it is very clogged with sawdust.
  4. The saw chain becomes dull or worn out. If there is no way to sharpen the chain yourself, then you should give it to a professional sharpener. It will cost money, but much less than buying a new one.

Causes of Malfunctioning Spark Plugs

As mentioned earlier, the cause of the failure of candles is, first of all, a violation of the contacts between the wire or the malfunction of the fuel system itself. To analyze such a malfunction, turn out the candle and carefully examine it. Its absolutely dry state tells the owner that the fuel simply does not enter the cylinders. A wet head reminds that the fuel in the cylinders is not flammable, or there is moisture somewhere in the system. First of all, you need to dry the candle. This is done with an open valve and a closed faucet.

Diagnosis of the condition of candles

You may need to replace gasoline or the candle itself. The presence of soot on the head indicates an imbalance between the gasoline composition and the oil. Perhaps there is a clogging of the fuel filter element. You can solve the problem by changing the fuel itself, filters and cleaning the fuel supply system of a chainsaw.

Chain and piston mechanism

Some parts experience greater loads during operation than others. Such elements include a chain, sprocket, bearings, tire, anti-vibration components, piston assembly. Such items are only replaceable. However, the chain can be sharpened and the cylinders bored. It all depends on the degree of wear.

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Let’s talk about the Patriot 3816 chainsaw, consider its purpose, characteristics. After reading the article, you will learn how to independently adjust the carburetor and eliminate malfunctions that may appear in the chainsaw during operation.

Application Patriot PT 3816

Patriot PT 3816 is an unprofessional chainsaw model and is intended for private use. For example, Patriot 3816 will cope with such tasks as annual harvesting of firewood in small volumes, pruning tree branches in the garden, sawing up trash. Also, the saw is used in the construction of fences for trimming wooden poles.

The Patriot 3816 saw cannot be used by professionals in industrial deforestation due to lack of resources. Details of the chainsaw, although made with high quality, are not designed to work in harsh conditions for a long time. The engine cylinder is completely aluminum, which means it is afraid of long-term operation and even slight overheating. If you put a chrome cylinder on the Patriot 3816, then the engine resource will increase significantly.

If you look at the Patriot 3816 well, you can immediately see its resemblance to typical Chinese chainsaws.

We offer you to watch a about the Patriot PT 3816 chainsaw, in which the owner shows the configuration and tells the main characteristics.

Specifications Patriot PT 3816 and its description

The number 3816 is indicated in the marking, it means that a 38 cm 3 engine is installed on the chainsaw, and the tire length is 16 inches (40 cm) as standard.

Such a volume is enough to give out power of two horsepower, which together with 12,000 rpm gives good performance indicators. The Patriot 3816 has a carburetor with the ability to adjust the quality of the mixture and a good air filter, which, if necessary, can be washed in soapy water and nothing will happen to it.

The width of the groove for installing the chain is 1.3 mm, the chain and the drive sprocket have a 3/8 inch pitch, the chain length is 57 links.

If necessary, you can install another tire, chain and drive sprocket on the chainsaw, the Patriot 3816 design allows this.

The case is made of plastic, although the parts are well fitted, they have gaps that immediately catch the eye. The quality of the plastic is much lower than on Stihl or Husqvarna chainsaws. When working with a chainsaw, strong vibration is felt, the reason is in shock absorbers, which are made of hard steel and can not cope with the functions assigned to them.

The shock absorbers of this chainsaw are made of low quality steel and break quickly, so with the active use of the Patriot 3816, you must have at least one spare shock absorber in stock.

For the operator’s convenience, the chain tension adjustment screw is placed on the side cover, which is really very convenient and safe, since the probability of cuts on the teeth of the chain when it is tensioned is excluded.

The starter of this model is equipped with an additional spring, which reduces the force required to crank the crankshaft of the engine and start the engine.

Frequent malfunctions of the Patriot PT 3816 chainsaw and DIY repair

As mentioned earlier, the Patriot 3816 often breaks off shock absorbers. Replacing them is easy. It is enough to unscrew the two screws holding the shock absorber, remove the defective part and install a new one instead.

Another common Patriot 3816 malfunction is a clutch spring break. It is not difficult to diagnose this malfunction, because the chain of the chainsaw will spin constantly, and the saw will stall if the tire is idled while trying to stop the rotation of the chain.

To replace the clutch, it is necessary to remove the top engine cover and unscrew the spark plug, then, through the spark plug hole, use a cord to stop the piston stroke. Next, you need to remove the side cover, chain and tire from the chainsaw, thereby providing access to the clutch. After that, using a special key (you can use the key from an angle grinder), untwist the clutch.

The clutch has a reverse thread, therefore it is untwisted clockwise.

We assemble the saw in the reverse order.

Nuances of carb adjustment

Carburetor of the Patriot 3816 chainsaw typical. A similar one is installed on many Chinese chainsaws.

Do-it-yourself carburetor adjustment is possible only with certain experience and knowledge. The adjustment algorithm is as follows:

  • When the engine is turned off, the quality and quantity screws are fully tightened, then they are turned out 1.5 turns each;
  • A chainsaw is started and warmed up for several minutes;
  • Turning the screw “L” (the designation is on the carburetor body and duplicated on the saw) is the position in which the engine develops maximum speed, and then turns away by ¼ turn;
  • The screw (N) is unscrewed until the saw starts to give maximum speed with the throttle fully open, after which it also looses 1/4.

Adjusting the carburetor, although not a very complicated procedure, should only be carried out after a complete inspection of the chainsaw and elimination of all existing engine defects (air leaks, fuel leaks, breather malfunctions), so we recommend contacting a service center or an experienced craftsman to carry out the adjustment.

User manual

An operating manual is supplied with the chainsaw, having read which you can find out how to correctly install the tire and chain, adjust the chain tension.

You can also familiarize yourself with the algorithm for storing the saw. By following the manufacturer’s recommendations, you can significantly extend the life of the unit and eliminate breakdowns of the chainsaw if it is used incorrectly.

Patriot PT 3816 Reviews

Alexander. 32 years. Barnaul.

3816 is my first chainsaw. Bought on the recommendation of a neighbor about a year ago. Saw is good to start and saws. I tried to cut the trunks of large trees, enough power. The saw has not yet broken, I try to monitor and carry out cleaning and maintenance in accordance with the manufacturer’s instructions.

Anatoly. 30 years. Permian.

I bought a Patriot PT 3816 for gardening. I immediately noticed that it was quite heavy, but after a little work, I got used to the weight and did not feel it anymore. It starts perfectly, both cold and hot. For two years of use, he cleaned the air filter several times and changed one shock absorber, because the old one burst, the saw began to dangle and gas on its own. I am pleased with my chainsaw and recommend to anyone who needs a reliable tool for housework.

Conclusion

Patriot PT 3816, is a high-quality Chinese-made chainsaw, which is guaranteed to work out the money paid for it. Of course, it can not be compared with the saws of leading manufacturers, but due to its low cost and good performance, the Patriot 3816 finds its owners.

How to repair a chainsaw yourself

A chainsaw is an indispensable and reliable assistant in every household. The ease of use of the tool makes it even more popular, but the occurrence of various types of malfunctions can never be ruled out. If various types of chainsaw malfunctions arise, then to eliminate them, you will need to resort to repair measures. You can repair the chainsaw with your own hands, but at the same time you need to determine the malfunction first. The material will consider not only all kinds of malfunctions, but also the features of their elimination.

Engine repair

The design of all models of chainsaws has a similar structure. The main unit of any chainsaw is a two-stroke internal combustion engine, from the operation of which the cutting element. The saw chain. Is driven. A starter is used to start the engine, and a carburetor is used to control the fuel supply and mix it with air. In order to increase the efficiency and productivity of the tool, during its operation, the chain and tire are lubricated. This is a separate system, the malfunction of which can lead to a number of negative consequences. Any element can fail, which will entail the inability to further use the tool for work.

If a malfunction occurs, questions such as repairing a chainsaw often arise, and what is needed for this? Initially, it is necessary to identify the cause of the breakdown, and only then make an appropriate decision to eliminate it. If the chainsaw does not start, then most often this occurs as a result of a carburetor malfunction. Rarely can a starter malfunction or the inexperience of the person who is trying to start it serve as a cause. Consider the main types of malfunctions of various systems, as well as the features of their independent elimination.

Chainsaw starter repair

Every 10-year-old boy knows what the starter is for, so it makes no sense to consider the purpose of this device. It must be said that the simplest type of manual starter is used on chainsaws, which allows you to start a two-stroke engine by pulling the handle, which is connected via a cable to the clutch drum. A number of starter malfunctions include:

  • Pulley damage;
  • Spring damage;
  • Cable break.

If the pulley is damaged, it should be replaced with a new one. If the spring is damaged in the place of its engagement with the groove of the drum, then you can try to repair it, although in most cases it is not worth it, only relevant if you are away from civilization. If the cable breaks, replace it, for which you will need to remove the starter cover and carefully replace. It is impractical to take a chainsaw for repair in case of a starter malfunction, since it will be much cheaper to perform an independent repair or replacement.

Fuel supply system

The following types of malfunctions are distinguished in the fuel supply system:

  • Clogged fuel filter;
  • Clogged holes in the tank cap;
  • Receipt of a small amount of fuel.

You can also fix these malfunctions yourself. The first step is to disconnect the fuel hose and make sure the fuel flows out of it. If fuel does not leak, then clean the hole in the cap with a needle. The fuel filter should also be replaced, which is recommended every 3 months. If an insufficient amount of fuel enters from the carburetor into the cylinder, the cause may be a disturbed ratio of fuel and air in the carburetor. You will need to adjust the carburetor, which can also be done independently. When the fuel mixture enters from the carburetor in large quantities, it is necessary to clean and adjust the carburetor.

It’s important to know! Carburetor repair should be entrusted to specialists or to resort to such work only with the appropriate experience.

Chainsaw ignition unit repair

If the ignition system malfunctions, you can repair this unit with your own hands. The malfunction of this system should begin to be sought directly from the inspection of the candles. The presence of moisture on the contact group indicates an excess of fuel. So you need to adjust the carburetor.

It’s important to know! Candle moisture can occur due to prolonged use of the tool.

If there is soot, it is necessary to clean the electrodes with a fine sandpaper (nulevka). The cause of soot is often a disturbed ratio of gasoline and oil. A spark check is required. If the spark does not appear, then the candle must be replaced. Replacement is recommended depending on the technical requirements. To fix malfunctions in the ignition system does not require special skills, therefore, you can independently resort to their removal.

Piston group repair

If you suspect a malfunction of the cylinder-piston group (CPG), it is necessary to check its condition. In order not to disassemble the mechanism, it is enough to unscrew the muffler and inspect through its window. Check the performance of the piston and crank mechanism by measuring compression. The compressor is installed in the spark plug hole, after which it is necessary to crank the crankshaft with a starter. The optimal compression value for normal engine operation is a value of at least 0.8-0.9 MPa. Compression measurement allows you to determine the wear of the piston rings, and then replace them if necessary.

Disassembling and cleaning the silencer

A clogged chainsaw muffler is one of the reasons for incorrect engine operation, as well as a decrease in its power. You can correct the situation yourself, for which a muffler is dismantled and washed with special detergents.

It’s important to know! It is not recommended to carry out dry cleaning of the muffler, since carcinogens are present in the soot composition, which can enter the lungs.

After removing carbon deposits, the muffler must be thoroughly dried, and only then installed in place. The accelerated appearance of soot in the muffler may occur due to improper gasoline-oil ratio or due to the use of low-quality oil.

Drive problems

If the malfunction lies in the inoperability of the tool chain, then it can also be eliminated independently, or replaced with a new one.

Chainsaw Clutch Repair

The clutch or clutch on the tool is presented in the form of a centrifugal drum, the operation of which is carried out in automatic mode. Over time, the clutch wears out, which necessitates its replacement. The cause of the breakdown of the coupling is wear on the teeth of the drive sprocket. If the coupling is integral with the crown or the drive sprocket of the tool, then it must be replaced comprehensively. If the sprocket is separated from the drum, then only the crown can be replaced, which will be much cheaper. The clutch requires only periodic lubrication, which allows to extend its service life.

Chain lubrication system

The chain lubrication system is an important device that allows for continuous supply of lubricant to the tool bar and chain. Faults with this system are associated mainly with clogged channels. If oil leakage occurs, check the tightness of the pipes connected to the pump fittings. Leaks can be repaired with sealant or by replacing tubes.

It’s important to know! It is categorically unacceptable to use mining as a lubricant for the chain.

In conclusion, it should be noted that any breakdown of the chainsaw can be eliminated, and most of them are done independently. If the breakdowns are associated with a carburetor or a cylinder-piston group, then the help of specialists will be required. Otherwise, the repair procedure is much simpler than repairing a car engine.

DIY Patriot chainsaw repair

A chain saw is an indispensable tool in the economy of any owner of a private house or summer cottage, as it greatly facilitates the life of its owner. Cut firewood, remove excess trees, cut a hole in the wall, put an extension and much more that can be done with a chainsaw. However, this tool requires special care, since it experiences considerable loads during operation, and in case of breakdown it is not worth immediately contacting the service department for help, but try to repair the chainsaws with your own hands. Firstly, it will save a lot of family budget, and secondly, knowing the design of the tool, you can easily carry out inspection and repairs on your own, without putting a lot of effort into it.

READ  How to Assemble Clutch On A Chinese Chainsaw

Chainsaw design and general fault classification

It is correct to find the source of the malfunction, as well as to carry out the correct and sound repair of chainsaws, for this you need to have a reliable idea of ​​its technical specifics. Repair of such equipment is not particularly difficult. Its schematic structure is quite simple. For convenience, the nodes in its composition can be divided into three types:

  • The main and very important element, without which further work is impossible, is a two-stroke engine running on gasoline. Permissible brands of gasoline are indicated in the device passport;
  • The second equally important component is its working part, which is responsible for sawing the materials themselves. These include sawing mechanisms;
  • The third connecting unit includes a system for supplying and filtering fuel, oil, engine ignition, exhaust gas, etc.

Chainsaw engine malfunction

Malfunctions are classified by two nodes:

  • Malfunction of the engine itself. It can’t start up, it stalls for no reason, overheats, smokes very much, works unstably with a minimum and maximum load. Therefore, repairs must be carried out on these units.
  • Malfunctions in the periphery. Here you can identify many symptoms that cause failures in her work. For example, if the chainsaw is muffled during operation or loss of power, it is possible that there is a blockage in the gas supply system or filter. If the saw is bad, then the chain may simply become dull. Repair should begin with the study of auxiliary components, which will require the least time and equipment.

For convenience, before starting repairs, you should divide the chainsaw into sectors and look for a malfunction directly where a problem is suspected. The manual also provides a brief description of possible breakdowns and how to solve them.

It should also be borne in mind that several factors can serve as sources for the same malfunction. Therefore, the ability to diagnose the cause of the breakdown is important, so that in the future to carry out repairs correctly and accurately. Before you begin disassembling and repairing the chainsaw, you should estimate the possible causes and try to work only with them.

What you need to fix the breakdowns

Chainsaw repair does not require a large arsenal of home tools. First of all, it is:

  • Screwdrivers. Cross and flat to remove the casing, chain or other components that are fastened with flat bolts and will definitely be needed in order to properly repair the chainsaw;
  • A set of cap and wrenches of different sizes. They will be needed when disassembling the engine and other moving parts. Repair of such parts sometimes involves dry cleaning, so they will be needed to scrape off excess dirt;
  • Key to remove the candle;
  • A diagram of the chainsaw itself to know how certain nodes work and how to properly service them.

DIY chainsaw repair, fuel supply system

The most frequent breakdowns requiring repair of their parts include problems with the engine and fuel supply system. It happens that it is impossible to develop the nominal maximum power of the chainsaw, or the chainsaw suddenly stalls after a while, or it does not work at all.

Fuel supply system

This happens in two cases:

  • Problems with the ignition of the fuel mixture;
  • Problems with the delivery of gasoline from the tank to the engine.

The search for the causes of failure and repair of the chainsaw should always begin with elements that require the least cost in time and money, namely with a spark plug. Its direct purpose is the generation of sparks and the ignition of a gasoline mixture with air. A regular visual inspection of this element can tell a lot and tell you where to start the repair.

  1. The absence of a spark in the gap indicates poor contact with the wire or a malfunction of the candle itself. It is necessary to check all the contacts and the candle itself. A new candle is installed in the cradle, and if it also does not give out a spark, then the problem lies in the contacts and the wire itself. You need to change them.
  2. A dry candle is the first sign that fuel is not fed into the carburetor at all. The cause of the breakdown is a blockage in the fuel filter element or breather. It is necessary to rinse, if not succeed, then change the filter. Manufacturers recommend changing it at least once every three months.
  3. Excessive fuel presence on the spark plug head indicates incorrect carburetor adjustment or incorrect start-up. Repair includes banal removal of the candle, which must be wiped with a dry rag. It is also necessary to check the chambers in which the fuel burns directly.
  4. The candle is covered in soot. This is evidenced by the excessive intake of a mixture of gasoline in the chambers for its combustion, poor oil quality, improper carburetor settings or the wrong proportion of oil and fuel. Repair here is carried out by washing the candles, then you need to wipe it dry with a rag. Clearances should also be cleaned with a sharp needle or awl. Problems with the carburetor arise, usually when its settings get lost, the membrane wears out (only its replacement will help here), there is a blockage in its channels (it should be disassembled and cleaned).

Chainsaw Filter Replacement

DIY chainsaw repair is always a difficult task even for an experienced person who knows almost everything about technology. Most of the time it takes to diagnose a malfunction, when you need to find the source of all problems with the equipment.

Silencer Troubleshooting

It happens that the engine runs quietly and without problems at zero load, and when it increases, it stalls or works intermittently. This is caused, as one of the reasons, blockage in the muffler. The source of clogging may be the products of combustion of waste materials, an excess of oil in the combustion mixture, or its poor quality. In such a situation, repairing the chainsaw will not be so time-consuming, since in order to eliminate the malfunction, it is only necessary to clean the muffler. Most often, the spark arrestor is clogged with the combustion products of gasoline vapors.

  • Remove the muffler. It is better to close the outlet opening with a cloth so that dirt does not get there;
  • Disassemble the muffler itself, if it is collapsible;
  • Rinse it with special detergents. You can use dry cleaning. This should be done using a respirator or other respiratory protective equipment, since carcinogenic substances are present in the remains of burnt products, which greatly harm our health;
  • Dry the muffler with a compressor, vacuum cleaner (blow action) or a regular hairdryer;
  • Assemble and install in place.

Repair of cylinder piston group (CPG)

Sometimes it happens that the engine is not able to achieve maximum power or start up for reasons of insufficient pressure in the cylinders. The source of such problems sometimes are faulty piston rings, problems with the cylinder, bearings, or wear on the piston itself. Therefore, chainsaw repair should begin with a visual inspection of the engine cylinders. Inspection is possible through the hole where the candle is installed to ignite the mixture. The review under such conditions will remain minimal, but a first idea of ​​the state of the working group at this stage can be obtained.

You can also insert a compressometer into the candle hole. Scroll starter or crankshaft. The pressure inside must be at least 8 atmospheric units. At lower values, the engine will not work due to insufficient created pressure inside. With a decrease in pressure, the engine power itself also decreases.

A more detailed picture of what is happening inside can be seen by analyzing it. To do this, remove the crankcase and visually inspect the piston. If there are chips, dents or scratches, it must be replaced. The piston pins must also be in good condition without damage and not loose. If this happens, then you should definitely change them.

The decrease in pressure inside the engine also consists in the failure of the piston rings. This can be immediately noticed, since the working ring is not covered with soot, it is free in the groove and does not hang out, it is pressed tightly inside the cylinder.

Replacing the chainsaw piston rings

You should also examine the surface of the inside of the cylinder. If it has already been developed, then it should be squandered.

Check carburetor and signs of the need to adjust it

The rated power of the engine and saving fuel consumption depend on the good condition of the carburetor. The chainsaw carburetor has no functional difference from the automobile. He mixes gasoline vapors with air coming through the pipe and feeds them further into the combustion chamber.

  • Duct or tube for supplying air;
  • A fuel pipe or fuel feed pipe for mixing with air;
  • Air damper.

A sign of the need to adjust the carburetor:

  • Strong vibrations due to unbalanced screws. The engine with a working carburetor works smoothly, the sound resembles a four-stroke stroke;
  • Damage to the protection cap;
  • Wear of the piston system, which already requires a different mixture in composition;
  • Involuntary engine shutdown, impossibility of its repeated or initial start-up;
  • Unreasonable increase in gasoline consumption, while the engine power can remain the same, and most often decrease;

Calibration Algorithm and Safety Precautions for Troubleshooting Chainsaw Carburetor

Calibration or fine adjustment of the carburetor must be carried out strictly as recommended by the manufacturer of the chainsaw. Often this procedure has already been done at the assembly stage in the assembly workshop. However, chainsaw repair sometimes involves carburetor tuning. This is due to its malfunction for technical reasons, failure of settings, etc.

Fine tuning is done with three bolts:

  • The bolt “L” regulates the fuel supply at low speeds;
  • Bolt “H” controls the highest fuel supply to the engine;
  • The “T” bolt adjusts the idle fuel supply.

There are two types of carb settings:

  • Basic or basic. It is carried out on the switched off engine;
  • Exact or final. It is carried out on a warm engine.

First, the bolts “H” and “L”, which regulate the flow of the fuel mixture at high and low revs, respectively, are tightened counterclockwise until they stop. Then they are rotated one and a half turns already clockwise. It is advisable, before starting the procedure, to mark with a pencil or felt-tip pen the initial position of these bolts, so that later they can be returned to the position in which they were before if there are problems with the adjustment. The fact is that with an unskilled approach to adjustment, there is the possibility of finally killing the engine.

Further adjustment takes place on the engine warmed up to the desired temperature. He is left working for 10 minutes. Next, they already fine-tune the idle speed adjustment bolt. It is rotated until the engine (its revolutions) reaches the minimum values. The engine should work stably, while the chain should remain in place (do not rotate).

Then you should check how fast the momentum is. To do this, slowly rotate the low-speed bolt another eighth of a turn. The maximum possible speed can be set using the tachometer and the adjustment of the bolt “H”. Next, you should once again check the carburetor idling.

Other chainsaw malfunctions

In addition to the main components, the chainsaw has a number of other less functional, but no less important components. Failures here also happen, but it is much easier to identify and eliminate them.

  1. System malfunction in the fuel vapor fuse. This may include a starter breakdown. It happens that his cable breaks, the return spring pops up or completely breaks. The contacts between the high-voltage wire and the candles wear out.
  2. The lubrication system itself is disrupted. The cause may be poor or inappropriate oil, or the lubricants themselves. You can even just add lubricants to the necessary components on time.
  3. It happens that the brake for the chain starts to work incorrectly. To eliminate this problem, you need to configure it correctly. Clean, as it happens it is very clogged with sawdust.
  4. The saw chain becomes dull or worn out. If there is no way to sharpen the chain yourself, then you should give it to a professional sharpener. It will cost money, but much less than buying a new one.

Causes of Malfunctioning Spark Plugs

As mentioned earlier, the cause of the failure of candles is, first of all, a violation of the contacts between the wire or the malfunction of the fuel system itself. To analyze such a malfunction, turn out the candle and carefully examine it. Its absolutely dry state tells the owner that the fuel simply does not enter the cylinders. A wet head reminds that the fuel in the cylinders is not flammable, or there is moisture somewhere in the system. First of all, you need to dry the candle. This is done with an open valve and a closed faucet.

Diagnosis of the condition of candles

You may need to replace gasoline or the candle itself. The presence of soot on the head indicates an imbalance between the gasoline composition and the oil. Perhaps there is a clogging of the fuel filter element. You can solve the problem by changing the fuel itself, filters and cleaning the fuel supply system of a chainsaw.

Chain and piston mechanism

Some parts experience greater loads during operation than others. Such elements include a chain, sprocket, bearings, tire, anti-vibration components, piston assembly. Such items are only replaceable. However, the chain can be sharpened and the cylinders bored. It all depends on the degree of wear.

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Learn how to fix the most common chainsaw problems with just two standard keys!

1. The chainsaw does not start 0:30
1.1. Fuel mixture check1.2. Checking the chainsaw spark plug
1.3. Chainsaw Compression Check
1.4. Checking the chainsaw carburetor

2. The chainsaw chain doesn’t spin 5:46
2.1. Removing the chain of the chainsaw from the brake
2.2. Chainsaw tire sprocket development

3. The chainsaw doesn’t saw 06:45
3.1. Chainsaw chain teeth check
3.2. Chainsaw chain sharpening check
3.3. Chainsaw Chain Lubrication Check

What if nothing helps 7:58

Tells Stepan Latypov,
Director of Belarbo

A chainsaw today is a valuable helper in the household. For many owners of country houses, this unit has become indispensable. Despite the rather simple design, the tool sometimes fails. However, almost any person with a certain amount of knowledge in the field of technology and having a set of necessary tools can independently repair a chainsaw.

Chainsaw device

The simple design of the tool allows you to repair the chainsaw with your own hands. The main elements of the unit are the following:

  • Power point.
  • Clutch.
  • Oil pump.
  • Chain drive.
  • Catchers and brake system.

Depending on the brand, some changes may be made to the design of a tool. For example, an engine may sit horizontally either vertically. In professional saws, the second option is most often used. Due to the horizontal arrangement of the power plant, the dimensions of the tool are significantly reduced, which is important for home use. Knowing the unit’s device, you can quickly understand how to disassemble a chainsaw.

Most common tool malfunctions

No matter how well the unit is operated, periodically there are malfunctions in the operation of its systems. To fix them, you need to determine the reason. Knowing the device of the chainsaw, it can be argued that most often problems arise with engine operation. However, do not forget about other components that are also subject to wear.

Powertrain issues

It can take quite a while to identify the cause of a malfunction in the engine. Among the main signs of failure, several main ones should be noted:

  • The engine does not start.
  • The power plant starts to work, but quickly stalls.
  • At idle, maximum power is not reached.
  • Interruptions in work are observed.

When diagnosing a malfunction, the exception method must be used. It is better to start checking with those reasons for the elimination of which a minimum of time is required. Most often, the malfunction of the power plant is associated with the ignition system. It is the condition of the candle that can say a lot about the operation of the entire engine. First, using a special key, you must remove this element and then check its external state. The performance of the ignition system can be easily determined by sparking. When a strong and stable spark appears, should proceed to the inspection of the system fuel supply.

The following problems are possible in her work:

  • A clogged breather cap prevents fuel from flowing.
  • The fuel filter is dirty.
  • An insufficient amount of fuel flows from the carburetor into the cylinder.

To resolve the problem, disassemble the system and clean it thoroughly. Fuel supply problems can be caused by contamination of the corresponding filter, which interferes with the process of creating a high-quality fuel mixture. If the chainsaw stalls under load, you should inspect the muffler, in which a large amount of combustion products could accumulate. The most difficult problem is the malfunction of the cylinder-piston group. This applies not only to the repair of Chinese chainsaws, but also to products of well-known brands. In this situation, it is practically impossible to do without the acquisition of spare parts.

Lubrication system and chain brake

When using the tool, special attention should be paid to monitoring chain lubrication systems. Most often, problems arise due to clogging of the channels through which the lubricant is supplied. With a slight oil leak, you can continue working with a chainsaw. Otherwise, urgent measures must be taken to rectify the malfunction.

The first step is to check the tightness of the connection of the fittings to the tubes. It is possible that the replacement of these parts will be required, but everything can do with a simple replacement of the sealant. Do not forget about the oil pump, which must be checked visually. It must be replaced if there are cracks in the case. Problems with the operation of the brake most often occur due to contamination of the brake band.

Recommendations for use

To increase the life of the tool, you must follow some rules. This primarily concerns the saw chain and guide rails. It is recommended to replace the chain every three hours, and turn the guides 180 degrees. As a result, these elements will wear out evenly, which will extend the life of the entire tool.

READ  How Much Oil To Gasoline For Chainsaw

During operation, it is important to constantly monitor the cleanliness of the chainsaw. When sawing wood, the unit quickly clogged with sawdust, which must be removed in a timely manner. Contamination of process holes can cause problems with the fuel system. It is also important to timely change the oil and other consumables.

Carburetor Adjustment Chainsaws Patriot 3816 AURAMM.Ru

DIY carburetor setup for chainsaw

For an independent carburetor option, it is necessary to familiarize yourself with its device and understand the procedure for the work that is carried out to adjust the parts responsible for the proper functioning of the component parts of the device and parts close to it.

It is necessary to carefully handle objects for the system option, and also determine the correspondence of the set characteristics to very acceptable values.

About carburetor design

The carburetor is used to mix a combustible consistency with air, subject to well-established proportions. If clear doses are not respected, the health of the motor is at risk. When a huge amount of air enters during the mixing of the component, and there is not enough fuel, such a mixture is considered “poor.”

It should not be allowed and oversaturation, because with a large amount of fuel in comparison with air, malfunctions or deterioration of the engine are also likely. Adjusting the carburetor is necessary not only before the initial implementation, but also when any differences in its work are revealed. Before working with a chainsaw, do not forget to run it in.

Carburetor parts

The carburetor design contains a standard set of parts, but may vary little depending on the manufacturer. Components:

  1. The basis. This is a special tube that visually resembles an aerodynamic design. Air passes through it. In the transverse direction, a shutter is located in the middle of the pipe. Its position can be changed. The more it is pushed into the passage, the less air enters the engine.
  2. Diffuser. This is the lent part of the tube. With its help, the air supply rate increases in the very segment where the fuel comes from.
  3. Channels to supply fuel. The fuel mixture is contained in the float chamber, then passes into the nozzle, from which flows into the spray.
  4. Float chamber. It is a separate structural element that resembles the shape of a tank. Designed to constantly maintain an optimal level of fuel fluid before entering the channel from where air comes.

Not sure which chainsaw to choose? Read our article.

Looking for cheaper models, but reliable and time-tested? Pay attention to Russian-made chainsaws.

Or explore overseas chainsaw manufacturers such as Stihl.

What you need to have to configure

Each carburetor owner must have the necessary tools to adjust this system. There are three adjusting screws that are located on the device. They have their own markings:

  • L. Screw for low speed correction.
  • H. Screw for adjusting high revs.
  • T. Regulates idling, in most cases it is used for experiments.

Chainsaw Air Filter

Before adjusting the carburetor, you need to prepare the device:

  1. The engine warms up, that is, it starts about 10 minutes before repair, and turns off when work starts (see how to start a chainsaw).
  2. The air filter is checked and flushed.
  3. The chain is stopped by turning the T screw all the way (see chain oil).

To carry out safe repairs, you need to prepare a flat surface where you can neatly position the device and unscrew the chain in the opposite direction. Need a tachometer. It determines the presence of a malfunction in the carburetor. At revolutions of the screws, the sound should be perfect and absolutely even. If screeching notes are noticed, then the mixture is oversaturated.

Setup Instructions

Carburettor adjustment is divided into two main stages. The first is called basic. It is made with the engine turned on. The second is performed when the engine is warm.

To carry out the carb adjustment procedure successfully, you need to familiarize yourself with the instruction manual specific model to identify additional features of the device settings.

First stage

The adjusting screws of the highest and lowest revolutions should be carried out clockwise until the highest resistance is encountered. When the screws reach the stop, you need to translate them in the opposite direction and leave after passing 1.5 turns.

Main stage

Chainsaw carburetor adjustment.

Chainsaw Carb Adjustment.

Chainsaw Partner. Carburetor repair, adjustment.

Does not start chainsaw PartnerCarburetor for 7 bucks, flaws, how to fix.

The engine starts at medium speed and it warms up like this for about 10 minutes. The idle adjustment screw must be clockwise. It is released only when the engine comes into stable operation. It must be ensured that the chain does not move during this process.

In idle mode, the engine may stall (the reason is here). In this case, immediately adjust the adjusting screw clockwise to the stop. Sometimes the chain begins to move. In this case, turn the adjusting screw in the opposite direction.

Acceleration Test

You need to do a little research. The acceleration of the device is initiated. It is necessary to evaluate the serviceability of the engine during the maximum speed. When the engine is functioning properly, it means when you click on the accelerator, the speed quickly rises to 15,000 rpm.

If this does not happen or the speed increase is too slow, you must use the screw marked with the letter L. It turns counterclockwise. It is necessary to observe moderate movements, since the turn cannot be more than 1/8 of the full circle.

Maximum speed

To limit this figure, you need to use a screw marked H. To increase the number of revolutions, turn it clockwise, and to decrease it in the opposite direction. The maximum frequency must not exceed 15,000 rpm.

If you make this figure more, the engine of the device will run to wear, which will lead to problems in the ignition system. When rotating this screw, the ignition processes of the device must be taken into account. If the slightest glitches appear, then the maximum value of the revolutions must be reduced.

Final idle check

Before this procedure, it is necessary to perform a full adjustment of the components of the carburetor when operating at maximum speed. Next, you should check the operation of the device in idle cold mode. When the correct parameters are reached during adjustment, you can see the exact compliance of the carburetor design with the following criteria:

    1. When the idle cold mode is connected, the circuit does not move.
    1. When even a slight pressure on the accelerator is carried out, the engine accelerates at an accelerated pace. With a gradual increase in pressure, you can notice that the engine speed is proportionally increasing, reaching the maximum allowable values.
    2. When the engine is running, you can compare its sound with a four-stroke device.

    If abnormalities are noted in the given parameters or the device was not fully adjusted, you need to perform the main setup step again. Carburetor adjustment). Patriot pt 3816. In a Patriot chainsaw 16 inches is chain. Sometimes actions are performed incorrectly. In this case, the device may fail due to the loss of the correct node settings. In this case, you will have to contact a specialist.

    Dismantling the carburetor if necessary to check or repair the components

    The device of different models of carburetors is almost the same, therefore, when working with them, you can use the standard scheme. All items must be removed carefully and then lay out in the order below, so that you can successfully arrange the objects in place at the end of the repair work.

    Read also

      Overview of the manufacturer of chainsaws Patriot: the world of quality It is not in vain that a chainsaw is considered one of the most unique and irreplaceable tools in modern times. Because she is not only an irreplaceable assistant for each of us in.

      The best info about adjusting carburetors on a chainsaw I welcome you dear and most faithful readers of my blog. In this article, I decided to make out how to adjust the carburetor on a chainsaw. After all, it seems to me that you have repeatedly come across.

      Service of the Patriot chainsaw Tell me, what kind of adjusting screws (3 pieces) on the Patriot 3816 chainsaw, I understand that this is quality. Quantity, I just don’t know which screw, what influences it and how to correctly adjust it myself. Do 1.5 turns.

      Tools Chainsaw is an irreplaceable tool, both in the household and in the suburban area. But even the most reliable “iron” assistant starts to mope, it either won’t start, it stalls. Correct adjustment of the carburetor chainsaw.

      The best info about adjusting carburetors on a chainsaw I welcome you dear and most faithful readers of my blog. In this article, I decided to make out how to adjust the carburetor on a chainsaw. After all, it seems to me that you have repeatedly come across.

      Setting the carburetor chainsaw. Or how not to pay repairmen! Owning a chainsaw in almost everything makes life easier even for an amateur, and in some professions this tool is almost indispensable. But, like any relatively complex device, a chainsaw.

      Top cover removal

      1. The top cover is removed. To do this, unscrew the 3 bolts holding it in a circle.
      2. Foam is also removed, as it is the upper part of the filter that conducts air.
      3. The fuel hose is removed.
      4. The drive rod is displayed immediately on it.
      5. The cable tip is disconnected.
      6. The gas hose can be completely removed by steadily pulling it off the fitting.

      To finally prepare the carburetor for a major overhaul or replacement of the smallest parts, you need to carefully disconnect it from the main system. Sometimes it requires further disassembly. Unscrew the components carefully and fold the fasteners in groups, as these small parts are easily lost.

      Instruction for chinese

      To correctly configure the carburetor of a Chinese chainsaw, you must first remember the factory settings of the device, then turn on the engine. In the future, you will have to leave it to work for several hours to accurately set your own parameters. Sometimes work is performed once after a ten-minute operation of the engine, however, many Chinese-made models require special handling.

      Chinese model of chainsaw

      Adjustment Procedure:

      1. Events start at idle. Using the adjusting screws, you need to achieve a systematic set of revolutions by the engine, so you should first let it work at low speeds. A deviation from the norm is the movement of the chain along the bus. In this case, it is necessary to adjust the extreme position of the extreme screws so that the chain remains stationary.
      2. Switching to medium speed revs. Sometimes the engine smokes at the same time. This defect can be eliminated by tightening the screw to supply a leaner fuel mixture.

      In this case, the smoke will disappear, but the engine speed will increase. It is necessary to adjust the settings to the level where, when you press the throttle, the engine gains speed smoothly, sharp jerks or interruptions are not heard.

    • Device engine check in progress. The chainsaw is transferred to the minimum speed, and then a rapid pressing of the lever is carried out. With maximum pressure, it is held for 3 seconds. If there is a malfunction in the engine, it is necessary to gradually loosen the screw until the optimum position is reached.
    • Chainsaw should work for several hours in real conditions. It is necessary to engage in sawing wood, and then perform an inspection of all the elements involved in this event. If there are deviations, they need to be corrected using adjusting devices. When all defects have been eliminated and optimal settings have been set for the supply of correctly concentrated fuel, the process of setting up the device can be considered completed.
    • Read also

        Overview of the manufacturer of chainsaws Patriot: the world of quality It is not in vain that a chainsaw is considered one of the most unique and irreplaceable tools in modern times. Because she is not only an irreplaceable assistant for each of us in.

        The best info about adjusting carburetors on a chainsaw I welcome you dear and most faithful readers of my blog. In this article, I decided to make out how to adjust the carburetor on a chainsaw. After all, it seems to me that you have repeatedly come across.

        Service of the Patriot chainsaw Tell me, what kind of adjusting screws (3 pieces) on the Patriot 3816 chainsaw, I understand that this is quality. Quantity, I just don’t know which screw, what influences it and how to correctly adjust it myself. Do 1.5 turns.

        Tools Chainsaw is an irreplaceable tool, both in the household and in the suburban area. But even the most reliable “iron” assistant starts to mope, it either won’t start, it stalls. Correct adjustment of the carburetor chainsaw.

        The best info about adjusting carburetors on a chainsaw I welcome you dear and most faithful readers of my blog. In this article, I decided to make out how to adjust the carburetor on a chainsaw. After all, it seems to me that you have repeatedly come across.

        Setting the carburetor chainsaw. Or how not to pay repairmen! Owning a chainsaw in almost everything makes life easier even for an amateur, and in some professions this tool is almost indispensable. But, like any relatively complex device, a chainsaw.

        Look at the clearly:

        Conclusion

        In order for the chainsaw to work properly, it is necessary to carefully carry out work on adjusting the carburetor in exact accordance with their priority. If there are any violations in the operation of the device, you must independently perform its complete disassembly. In most cases, replacement of any parts that have become unusable is required.

        With a constant check of the quality of the carburetor settings and the implementation of timely actions to improve its operation, there are no problems with the chainsaw.

        About which chainsaw to choose. Read here.

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        In this article we will talk about how to get rid of such a malfunction as oil leak on a Chinese-made chainsaw with an engine capacity of 45-52 cm3 (Forward, Redverg, Huter, Patriot, Green, Etalon and others

        Agree, it’s not a pleasant moment when, before or after work, to find a puddle of oil under a chainsaw. Firstly, this means insufficient lubrication of the saw set during operation. Secondly, it causes discomfort when storing the saw (in the garage, car or in the house)

        The problem of this kind is due to the design of the saw and the oil supply system. But it can and should be eliminated. This repair will not require large expenses or a lot of time.

        So let’s get started:

        Open the air filter cover.

        Unscrew the spark plug.

        Using a stop, we block the movement of the piston in the cylinder

        The piston stop is used to block the piston stroke in the cylinder when removing the flywheel or clutch. It can be both plastic and metal.

        An alternative is a rope with twisted knots

        Next, unscrew the clutch (Left thread) puller or key

        The key for disassembling automobile shock absorbers can be suitable for almost all types of clutches (the key is adjustable). With periodic repairs can be purchased, the cost is very affordable.

        • Clutch
        • Clutch washer
        • Leading asterisk
        • Needle bearing
        • Oil pump drive

        Inspect the drive sprocket immediately for wear (replace if necessary)

        An asterisk with a removable crown is installed on this saw (in case of wear, only the crown changes)

        As well as the threads on the oil pump drive (it should not be “lapped”.

        As we see in this case, the whole thread, replacement is not required.

        Next, unscrew the 3 screws (3mm hexagon) and remove the protective cover

        We remove the oil pump. For this we unscrew the two screws of its fastening and remove it from the hoses

        The first thing that catches your eye is the “sad” state of the crankshaft oil seal. He was “squeezed out” of the seat and he is very worn out. And this is the source of air into the engine, as a result of the malfunction of the saw

        The outer surface of the oil seal began to wipe the oil pump drive (dark marks on the drive witness to that)

        Definitely a replacement

        We continue to deal with the non-tightness of the oil system.

        We remove the oil maslang with a filter from the seat in the crankcase. This is one of the places where the oil oozes.

        Also, unscrew the screw (right) and remove the protective strip

        We prepare the workplace. We remove dirt and sawdust from the saw case

        For unknown reasons, there is no oil tank breather.

        Be sure to install it in the seat (suitable breather from benzo / oil tanks saw Stihl MS-180)

        Fix it with a snap ring

        We immediately install a new crankshaft oil seal (its size is 15284.5 mm)

        Before installing on the inner surface of the seal, apply a small amount of oil.

        Next, go to the oil hose. If there is damage on the old one or it is “zadublen” we will prepare a new one.

        On the inner surface of the hose (the one that is fixed in the crankcase of the saw) we wind several turns of the usual fumlent

        And a small amount of sealant on the “circuit”

        We rinse and purge the oil filter and install on the hose.

        Then we put it into the oil tank and fix the seat (be sure to degrease it)

        Check if the oil hose is tight

        And also check the condition of the upper pressure head oil hose for damage (cracks). If necessary, replace it with a new one.

        So. The breather was installed, the oil seal was replaced, the oil hose was fixed, the oil pump can be installed

        Next, mount the oil pump (pre-washing and blowing it)

        Important: install a washer on the internal “oil pump nozzle (or two. Depending on the thickness) for a snug fit to the oil hose)

        It looks the same way.

        The hose should press firmly against the oil pump.

        Next, fix the oil pump to the crankcase with two screws

        As well as the safety bar on the right

        As well as the safety bar on the right

        We mount the protective cover on three screws and install the oil pump drive (on its surface there are slots for an asterisk. They should not be “drained”

        Next, we install a needle bearing, an asterisk (watch the seating of the sprocket grooves in the splines of the oil pump drive) and the clutch washer

        Next, we stop the movement of the piston in the cylinder

        We wrap the clutch (thread left!)

        And twist the key with effort

        We twist the spark plug, install the air filter (if necessary, clean it) and the cover.

        Repair completed. We give time to dry the sealant, fill the saw with oil and check for leaks. Chainsaw oil leak fixed!

        That’s all, work with comfort and watch your tool!