Chainsaw Friendship: overview of models, specifications and repair manual. Chainsaw Friendship: description, principle of operation, technical parameters, operation, cost Hand saw friendship 2

A chainsaw can lighten everyday life each of us. This tool is practical, reliable and full degree pays back the costs spent on its acquisition.

The variety of models is amazing, but a lot does not mean high quality. Therefore, when choosing this kind of tool you need to build on the manufacturer, since his name can tell a lot about this technique.

First, a chainsaw company must have years of experience(see) and have a positive reputation. If you are faced with a situation where you need to purchase a chainsaw, but you don’t know which manufacturer’s model to choose (see), then given material just you. Here is an overview of two best models, produced by the leading company "Druzhba" (about others in this article).

High quality products made by professionals

For more than thirty years, the company has been manufacturing chainsaws for both construction and agricultural work, as well as for activities in terms of deforestation on a huge scale (see). The variety of its production will not leave indifferent even the most inveterate critics, since models with different technological characteristics are “born” from under its machine tool, different power and equipment.

Z and for many years of its activity, the manufacturer managed to take the lead among today's competitors. And this is not surprising, since such a significant experience allowed us not only to improve our equipment to the smallest detail, but also to develop a kind of system that allows us to produce high-quality products, while not overpricing.

In fact, we should be proud of our "countryman", because it is the Russian company that “gives a truck” foreign manufacturers and is considered one of the best of its kind. And it was from under the machine of this company that one of the most popular models of chainsaws appeared: "Friendship - 2" and "Friendship - 4", the characteristics of which will be presented to your eyes below.

Specifications and Description

In this paragraph, you can familiarize yourself with each model separately, and for yourself determine which one suits you best. So let's get started.

"Friendship - 2"

This model equipped with an engine that runs on gasoline and a two-stroke engine. She has enough high power, which is about 2.2 kW, due to which the rotational speed reaches 8700 rpm(Which is half that of ). It is this feature that makes it possible to produce a high level of productivity in a fairly short time range.

Moreover, it is a novelty that has the highest quality and great build. The model itself has a fairly presentable appearance, as it is made according to the latest modern developments of the manufacturer. In addition, its owner will be able to enjoy specially designed features that have not previously been used in other models. This advantage contributes to the high balance of the chainsaw.

If we talk about external developments, then we can say with full confidence that it is very comfortable to use, thanks to the handle built into its design with a great grip. The functionality of the saw is designed in such a way that you cannot burn yourself. about a running hot engine, which is the case with most other chainsaws from other manufacturers, since during operation it cools itself.

The body is made from high quality material, which is not affected by an increase in air temperature, and also it does not change its characteristics over the years, so the chainsaw of this model will look great for decades. Moreover, absolutely all internal spare parts and parts are securely hidden inside the tool, thus they are protected from corrosion and external influences.

It is also important that this model equipped with a mechanical chain brake, the main purpose of which is to protect you from accidentally discarding the chain. Since he is able to stop the work of equipment in seconds. Thus protecting you from accidents.

In fact, working with this chainsaw is quite simple and convenient, besides, its main advantage is high level performance and durability. It is easy to manage, quite maneuverable and multifunctional.

Chainsaw friendship 2 m is perfect for you to work on suburban area, as with its help you can easily cope with sawing and harvesting firewood, with dry branches, knots on trees, as well as with small diameter trees.

It is also worth noting that equipped with rubber shock absorbers, thanks to which the vibration return and various vibrations are minimized. This model is a real find for summer residents, farmers, people involved in professional activity concerning the work with the saw.

"Friendship - 4"

This model is designed for high-quality and high-speed sawing process. wooden materials. This kind of chainsaw has an improved and latest modern design.

Moreover, it is quite powerful and at the same time its weight is relatively low. Also, the model has a system of quick and easy start, system of a fast stop of a chain and muffling of vibrations. Same way goggles and gloves are included for you and your safety.

The chainsaw has an excellent weight distribution, making it a real pleasure to work with, as it is efficient and comfortable. Thanks to the instant chain stop feature, the tool will not accidentally injure you or those around you.

The model also has a kind of drive coming out of the engine (gasoline) with manual system start of work. And thanks anti-vibration capability you will be able to work comfortably with the saw.

Do not doubt that such a purchase will delight you throughout years and you do not have to systematically repair the saw (with correct operation and ), since it is designed to work, not break. Quality, reliability and affordable cost are the main slangs of the Druzhba company! Do not forget to take care of the engine, read this article to find out.

Soviet chainsaw, developed in the 50s of the 20th century at the Machine-Building Plant. Dzerzhinsky. Mass-produced since 1955. Before the collapse Soviet Union several modifications have been released

Chainsaw DRUZHBA-2 52SS

DRUZHBA-2 52SS chainsaws are high quality, low price and work stability. Druzhba 52 is a model tested for a long time, trusted by thousands of people, the device has an improved design, the gasoline saw is made according to new high standards, and has a small weight with a powerful engine. Petrol has a weight of 5.1 kg., And the engine has a power of 2.7 kW. Due to this, a good balancing of the device is formed, the operation of the saw is reproduced from the drive gasoline engine, the engine is two-stroke, and has a high air cooling during operation, in automatic mode. DRUZHBA - compact, does not take up much space when stored, easy to use, has an excellent grip.

Chainsaw Druzhba -2 52 SS is used in agriculture, in a summer cottage, in private ownership, with the help of a chainsaw, you can prepare firewood for the winter, cut a tree of large and medium diameter, this model is used for construction works, for work at the logging site, the same chain saw is used for cutting dry branches, knots and trees. DRUZHBA-2 52SS is intended for long, reinforced, professional works, the saw has a high performance, for quite a short time does a huge amount of work. The tool has operator protection, which is displayed in the function of a mechanical chain brake, this is a quick chain stop that occurs in a matter of seconds, in case of rejection, or loss of the machine from hands.
The chain saw has a handle, it is comfortable with a good grip, it has built-in rubber shock absorbers, due to which vibrations are reduced, the noise level is reduced, and the vibration is quieter. Chainsaw model Friendship is the most reliable assistant people who are professionally engaged, for landowners, it is also suitable for farmers, and a simple summer resident.

Bar length 50 cm
Engine type gasoline
Engine power 2.7 kW (8800 rpm)
Cylinder volume 52 cu. cm
Fuel tank volume 0.55 l
Oil tank volume 0.26 l
Noise level 5.1 dB
Dimensions 51x26.5x27.5 cm
Weight 5.1 kg
Country of manufacture China

Chainsaw engine

A two-stroke carburetor engine and two tanks are installed on any chainsaw: one for filling fuel mixture, the other - oils for lubricating the chain). The volume of the fuel tank is from 0.3 to 1 liter, and the volume of the oil tank is usually 1.5-2 times less. This ratio of volumes is designed specifically to ensure that the chain oil and fuel mixture run out at approximately the same time, namely after 30-45 minutes of operation at full load.

Gasoline. Chainsaws require gasoline with an octane rating of 92 or higher, with a density in the range of 750-770 kg/m3. The purity of gasoline must be:

mechanical - to defend and store gasoline for work not in metal containers and not longer than 1 (one) month, otherwise it oxidizes and loses its properties;

chemical - impurities and additives should not be present (they have different speed, degree and temperature of combustion). Old gasoline turns yellow or reddish, and impurities have strong odors of bitterness (such as creosote) or acid (such as methanol).

Oil. Be sure to use branded oils. Since each manufacturer adds special additives to the oil for its piston group. In no case should motorcycle oils be used (low engine speeds) or for water equipment (other cooling system) - their use does not provide the necessary lubrication of the piston group and parts of the entire engine. Usually the oil content in the mixture should be 1/50 or 20 ml/cm3 ml of oil per 1 liter of gasoline. For example, in a transparent plastic bottle(1 l) pour in half a measure of gasoline, then add oil with a medical syringe (20 ml / cm3) and mix, add gasoline and mix thoroughly. The proportions of the fuel mixture must be strictly observed, but if the quality of gasoline is doubtful or the working conditions are difficult, then the amount of oil can be increased to 22-25 ml / cm3. Shake the mixture before each filling! Store the received fuel no more than two weeks! If the color of the mixture has changed (from the color sea ​​wave became, for example, brown), then it is not recommended to use it!

Friendship chainsaw-instruction manual

Re-preservation of the friendship chainsaw: Re-preserve the chain saw in a warm room at a temperature not lower than 15-20 ° C in the following order: 1. Remove the spark plug, remove the muffler and carburetor (without disconnecting the gas control cable).
2. Pour 50-100 cm3 of clean gasoline into the cylinder and crankcase through the spark plug hole and cylinder suction pipe and rotate crankshaft 10-15 revolutions to remove oil from the cylinder and crankcase. 3. Wash the spark plug, muffler and carburetor in gasoline, dry them and put them back in place. Remove grease from the outer surfaces of the remaining parts and assemblies of the saw with a rag soaked in gasoline and wipe dry. When re-preserving the chainsaw, do not allow oil, gasoline and dirt to get into the fan, magneto parts, wire high voltage and a capacitor socket.

If oil gets on the contacts of the breaker (there is no spark), clean them with a file, for which remove the deflector, fan housing and flywheel. Remove the flywheel using the puller supplied with the chainsaw. Preparation : Attention! On chainsaws sealed in a single cardboard container, the gearbox is not attached to the engine. To assemble the saw, it is necessary: ​​to attach the gearbox to the engine, to do this, unscrew the clamping screw of the frame clamp segments, install the gearbox on the benzoyl engine, the frame, the clamp between the clamp segments, tighten the clamp with the clamping screw and lever. To avoid damage to the engine, it is strictly forbidden to start it without an attached gearbox.

To stop the saw motor:
1. Lower the throttle control. 2. Slightly pull or push the enrichment button on the carburetor until the engine comes to a complete stop. 3. Close the fuel cock. Breaking in a new chainsaw: when using a new saw, at the beginning of its operation, intensive running-in of all its rubbing surfaces occurs.

It is recommended that the running-in of a new saw be carried out at idle with a short-term regassing until 2-3 tanks of fuel are used up. To protect the engine from overload during the first 25-30 hours of operation, a restrictive ring is installed above the carburetor throttle, therefore, during this period, avoid engine overheating and slipping of the clutch. Do not remove the restrictor ring before 25-30 hours of operation. After removing the restrictor ring, adjust the throttle travel until it is fully open, if necessary, move the cable in the lever and secure it with a screw, then check the gas adjustment for the minimum stable idle speed of the chainsaw engine.

Chainsaw DRUZHBA-2 45SS

The DRUZHBA-2 45CC chain saw reproduces operation from a gasoline engine, a two-stroke engine, and has a high power of 2.2 kW, so the rotation speed is generated at 8700 rpm, with such indicators high productivity in work comes out in a fairly short time.

The DRUZHBA-2 45SS chainsaw is of fairly high quality, and good assembly, made in an improved design, with new features, high specifications, Friendship 45 has little weight, and powerful engine, due to this, a high balancing of the tool stands out.

The DRUZHBA-2 45CC petrol saw has a comfortable handle with a good grip, during operation the engine itself is cooled by air, the body is made of high-quality material, resistant to frost, and has not changed in its characteristics after a long time, the internal parts are protected, from external factors and from corrosion.

The friendship 45 chainsaw model also has excellent protection, which manifests itself in the form of a mechanical chain brake, in case of rejection, omission of the apparatus, the brake works in seconds and stops the mechanism. The chainsaw is convenient and quite easy to use, has high wear resistance, performance, ease of operation, versatility and has increased maneuverability.

The DRUZHBA-2 45CC chainsaw is used for sawing firewood, for harvesting firewood for the winter, for sawing dry branches and trees, for cutting knots, it will cope with work in the garden, in the garden, it cuts a tree of medium diameter.

- Engine: gasoline, single-cylinder, two-stroke
- Power: 2.94 kW
- Fuel consumption: 720 g/kWh
- Working length saw unit: 46 cm
- Adjusted level of vibration velocity on the control handles: 7.9x10-2 m/s
- Weight: 12.5 kg
- dimensions: 500x865x460 mm

The positive aspects of this chainsaw are as follows: the high location of the levers relative to the cutting plane, which allows a person to work while standing in a position that is convenient for him. And, of course, the price is an order of magnitude less than that of imported manufacturers.

The modified engine is still used in pumps, winches, walk-behind tractors. He demonstrated his qualities very well, that many now prefer the SD-60 engine, which was developed on the basis of Druzhba.

Chainsaw Druzhba is designed for felling forests and sawing logs. Thanks to convenient design the technical characteristics of even models of the 60s remain acceptable to many consumers.

In order for the saw to be in working condition, preventive maintenance of all components must be carried out regularly, and adjustments at least once a year.

Device

The main parts of a chainsaw are as follows:

• engine;
• saw machine;
• frame with handles;
• gas tank.

The engine is a single-cylinder two-stroke carburetor. Cooled by airflow generated centrifugal fan. The engine and the saw unit are independent units, connected in 1 block with flange fasteners and fixed with a clamp.

When the fuel cock is opened, fuel enters the diaphragm carburetor, which ensures its uninterrupted supply to the engine at any angle of inclination and strong vibration. does not allow the engine to stop when the chain is jammed in the trunk while cutting wood.

The handles are located high, which provides the following features:

• do not bend over during work and get less tired;
• work in deep snow conditions;
• improve user safety.

Characteristics

For 60 years of production, the design of the Druzhba chainsaw and its characteristics have changed insignificantly.

The general options are:

• weight when fully equipped - 12.5 kg;
• dimensions - 865x460x500 mm;
• length saw bar- 450 mm;
• the capacity of the fuel tank is designed for 1.5 liters of fuel liquid;
• spark plug - any with a diameter of 17 mm.

The main difference between the modifications is in power. It is indicated by a number in horsepower at the end of the model name.

Friendship 2

The technical characteristics of this model are as follows:

• engine power - 2.2 kW;
• saw start type - manual;
• no rotary gear.

Druzhba 2 differs from the first model in the presence of a chain braking device, which made it safer: the tool cannot accidentally injure the worker or the people around him. The material from which the case is made is reliable and can withstand any temperature changes.

Friendship 4

This model received a gold medal at the World Exhibition of Technology in Brussels in 1958.

The technical characteristics of the chainsaw are as follows:

• power - 2.94 kW;
• engine oil tank volume - 150 ml;
• total shaft rotation speed - 5000-5400 rpm;

A gasoline-powered saw can cut a trunk with a diameter of up to 50 cm in 1 minute.

Friendship 4M electron

Chainsaw Druzhba 4M electron differs in that this model has an electronic contactless ignition system, which significantly increases the reliability of the engine.

Technical characteristics of 4M are as follows:

• power - 3 kW;
• fuel consumption - 720 g/kWh;
• the distance between the electrodes of the spark plug is within 0.6-0.7 mm.

The inner walls of the aluminum cylinder sleeve are chrome-plated for increased wear resistance. The model is equipped with rubber shock absorbers that reduce the transmission of engine vibration to the handles. In the Druzhba-4M model, the KMP-100U carburetor was used, and with the Druzhba 4A modification, the use of forced chain lubrication began due to the installation of an oil pump. This greatly increased the service life of the chain and guide bar.

Advantages and disadvantages

The advantages of the Friendship saw are:

• long service life;
• simple device - without much difficulty, you can quickly access any node;
• smooth and accurate cut;
• high performance;
• maneuverability;
• All details are reliably protected by the strong case.

The successful design of the Druzhba 4 chainsaw engine made it possible to use it in the production of walk-behind tractors, lawn mowers, and also to develop the SD-60 engine on its basis to drive stationary installations - generators, pumps.

The disadvantages of a chainsaw include the following:

• big weight;
• detachable rope starter.

Operation, maintenance and repair

To provide smooth operation saw, it must be adjusted periodically. The instruction manual attached to the equipment describes the features of setting up the model. Incorrect configuration will lead to unbalancing the operation of the nodes.

How to adjust a carburetor

Failures occur when there is not enough or too much fuel, and also if the proportions are violated when mixing fuel with air.

Carburetor adjustment is carried out as follows:

1. The fuel regulating screw is first turned all the way, and then back (counterclockwise) by 1.5-2 turns.
2. Start the engine, warm it up for 1-2 minutes and turn the screw T in one direction or another to achieve its stable operation at maximum speed. The idle chain must not move along the bar.
3. Check and, if necessary, seal the connection between the carburetor and the cylinder.

It is easier to adjust the carburetor using a tachometer, but at home, the engine is in most cases tuned by ear. When both quantitative and qualitative fuel supply is normal, the engine does not overheat, does not choke, runs smoothly, without sharp sounds. When adjusting, the screws are turned slowly, without jerking.

How to set the ignition

Properly adjusted ignition ensures stable operation of the engine - the Druzhba 4 chainsaw in this case will consume a minimum amount of fuel. The ignition of the saw is due to the magneto using a spark plug and a special wire.

To monitor the quality of the spark for igniting a chainsaw, a candle is placed on the cylinder body and the starter is pulled. If the candle is in working condition, a spark will jump between the electrodes. A weak spark will not cause ignition of the fuel, such a candle must be replaced.

It is better to replace the contact ignition of the chainsaw with an electronic one. This will save you from constant problems with its regulation. It is necessary to ensure that the screws securing the ignition coil are not weakened.

Main malfunctions and their elimination

If you know why the tool is malfunctioning, you can repair it yourself at home.

When the Friendship 4 chainsaw engine starts and stalls, the reasons may be:

1. Not enough fuel in the gas tank. It is necessary to add the mixture according to the instructions attached to the tool.
2. The spark plug was splattered with fuel. This does not allow a spark to form. The candle must be removed, dried, ignited on a gas burner.
3. Poor contact between spark plug and wire. This is due to the increased gap (more than 0.5 mm) between the tip of the candle and the wire. Candles should be cleaned of soot with a wire brush, blowing with air. They need to be changed periodically.

If engine malfunctions occur on idling, chainsaw repair Friendship 4 comes down to the following:

• changing the fuel mixture with a decrease in the amount of oil;
• cleaning the air filter and muffler (due to its clogging, the engine runs, but does not develop speed);
• checking the fuel line and replacing the tube if necessary.

If the cutting speed has decreased, the tire “drives”, pay attention to the sharpness of the saw teeth. A well-sharpened chain is more important than a strong engine. It is best to take it to the master for sharpening or use a machine with a rotary grinding disk. The bevel of the Friendship saw blade is 45° on the lower edge and 60° on the side. The height of the limiting protrusions relative to the teeth of the chain must be the same and checked after 3-4 sharpening of the chain.

The reasons why the Friendship saw does not start may be as follows:

1. The fuel mixture does not comply with the instructions for the repair and operation of the model.
2. Manufacturing defects. Repairs are carried out in a warranty workshop.

When assembling, even if the parts fit with a stretch, do not use force, for example, hit them with a hammer. By replacing worn out elements, you can restore the performance of the chainsaw or extend its life.

How much does a chainsaw Druzhba cost

Chainsaw ZiD Friendship 4 can be bought for 15 thousand rubles. The price of a used unit depends on its condition, the degree of wear of the main elements, general term operation, the presence or absence of all components, passports and ranges from 1 to 7 thousand rubles. For example, a Druzhba-Altai chainsaw, from the 90s, which differs from the basic one in an improved carburetor and saw system, can be purchased for 5 thousand rubles.

Parts are in demand. The most wearable - an asterisk - can be bought for 100-150 rubles, a starter - for 600-700 rubles, and an electronic ignition system - for 1 thousand rubles.

A chainsaw can make everyday life easier for each of us. This tool is practical, reliable and fully pays for the costs spent on its acquisition.

The variety of models is amazing, but a lot does not mean high quality. Therefore, when choosing this kind of tool you need to build on the manufacturer, since his name can tell a lot about this technique.

First, a chainsaw company must have years of experience (see chainsaw reliability rating) and a positive reputation. If you are faced with a situation where you need to purchase a chainsaw, but you don’t know which manufacturer’s model to choose (see), then this material is just for you. Here is an overview of the two best models produced by the leading company Druzhba (about other Russian-made chainsaws in this article).

High quality products made by professionals

For more than thirty years, the company has been manufacturing chainsaws for both construction and agricultural work, as well as for large-scale deforestation activities (see how to cut a tree with a chainsaw). The variety of its production will not leave indifferent even the most inveterate critics, since models with different technological characteristics, different power and configuration are “born” from under its machine.

Z and for many years of its activity, the manufacturer managed to take the lead among today's competitors. And this is not surprising, since such a significant experience allowed us not only to improve our equipment to the smallest detail, but also to develop a kind of system that allows us to produce high-quality products, while not overpricing.

In fact, we should be proud of our "countryman", because it is the Russian company that “gives a truck” foreign manufacturers and is considered one of the best of its kind. And it was from under the machine of this company that one of the most popular models of chainsaws appeared: "Friendship - 2" and "Friendship - 4", the characteristics of which will be presented to your eyes below.

Specifications and Description

In this paragraph, you can familiarize yourself with each model separately, and for yourself determine which one suits you best. So let's get started.

"Friendship - 2"

This model is completed with the engine which works at gasoline and the two-stroke engine. It has a fairly high power, which is about 2.2 kW, due to which the rotational speed reaches 8700 rpm(which is two times less than that of the Ural chainsaw). It is this feature that makes it possible to produce a high level of productivity in a fairly short time range.

Moreover, it is a novelty that has the highest quality and excellent assembly. The model itself has a fairly presentable appearance, as it is made according to the latest modern developments of the manufacturer. In addition, its owner will be able to enjoy specially designed features that have not previously been used in other models. This advantage contributes to the high balance of the chainsaw.

If we talk about external developments, then we can say with full confidence that it is very comfortable to use, thanks to the handle built into its design with a great grip. The functionality of the saw is designed in such a way that you cannot burn yourself. about a running hot engine, which is the case with most other chainsaws from other manufacturers, since during operation it cools itself.

The body is made of high-quality material, which is not affected by the increase in air temperature, and it does not change its characteristics over the years, so the chainsaw of this model will look great for decades. Moreover, absolutely all internal spare parts and parts are securely hidden inside the tool, thus they are protected from corrosion and external influences.

It is also important that this model equipped with a mechanical chain brake, the main purpose of which is to protect you from accidentally discarding the chain. Since he is able to stop the work of equipment in seconds. Thus protecting you from accidents.

In fact, working with this chainsaw is quite simple and convenient, besides, its main advantage is a high level of performance and wear resistance. It is easy to manage, quite maneuverable and multifunctional.

Chainsaw friendship 2 m is perfect for you to work in your summer cottage, as with its help you can easily cope with sawing and harvesting firewood, with dry branches, knots on trees, as well as with small diameter trees.

It is also worth noting that equipped with rubber shock absorbers, thanks to which the vibration return and various vibrations are minimized. This model is a real find for summer residents, farmers, people involved in professional activities related to working with a saw.

"Friendship - 4"

This model is designed for high-quality and high-speed sawing of wooden materials. This kind of chainsaw has an improved and latest modern design.

Moreover, it is quite powerful and at the same time its weight is relatively low. The model also has a system for quick and easy start, a system for quickly stopping the chain and damping vibrations. Same way goggles and gloves are included for you and your safety.

The chainsaw has an excellent weight distribution, making it a real pleasure to work with, as it is efficient and comfortable. Thanks to the instant chain stop feature, the tool will not accidentally injure you or those around you.

Also, the model has a kind of drive coming out of the engine (gasoline) with a manual start system. And thanks anti-vibration capability you will be able to work comfortably with the saw.

Do not doubt that such a purchase will delight you for many years and you do not have to systematically repair the saw (with proper operation and running-in of the chainsaw), as it is designed to work, not break. Quality, reliability and affordable cost are the main slangs of the Druzhba company! Do not forget to take care of the engine, to learn how to dilute gasoline with chainsaw oil, read this article.