The two-handed saw, better known to every summer resident as "Friendship-2", belongs to the category of tools that will never lose their relevance. If only because such a saw does not require any electricity or gasoline, and its working resource is practically inexhaustible!
"Friendship-2" - where does the name come from?
"Druzhba" - under this name both processed cheese and chainsaws were produced in the USSR. But it fits perfectly with a two-handed cross saw! Why "Friendship-2"? Yes, because it takes two to cut, and their actions must be well coordinated, in a word, like friends. So the people who gave such an unofficial name to the instrument hit, as they say, not in the eyebrow, but in the eye.
If you inherited such a tool and is gathering dust in a workshop or garage, do not try to part with it! Think for yourself - the saw is hand-held, which means it does not need electricity or other fuel. Without gasoline, a chainsaw is just a pile of metal, but Druzhba-2 will always help you out. So wipe the canvas with machine oil and put it in the far corner, fortunately, it does not take up much space.
Two-handed cross saw - a harsh tool
Crosscut saw is the largest representative hand saws, its length can reach almost two meters! There are four in total standard sizes, starting from 1 meter and ending with a canvas of 1750 mm, that is, each size is increased by 250 mm. The characteristic shape of the blades is rounded, and the height of the tooth usually does not exceed 20 mm. Even the smallest size of such a saw is a rather heavy tool that you cannot work alone for a long time ...
The first two sizes were once produced for the needs of the population - their tooth shape is classic, triangular, with a sharpening angle of about 70 °. However, everyone adapts the sharpening angle for themselves, because for soft wood in summertime it is better to reduce it to 35°, but for sawing in winter or for dry wood it is better to stick to 50° when sharpening. The longest saws (1500 mm and 1750 mm) were produced for sawing lumber. The teeth in such tools have a complex shape - between two M-shaped (Kremlin) cleaning teeth there are several simple ones, typical for cross saws. They are sharpened and bred accordingly. Such teeth in the cut cut the fibers, and the cleaning M-shaped teeth remove pieces of wood from the cut.
To sharpen and breed such a saw correctly, you need to be a real ace in this business, because for correct operation teeth of complex shape should be a fraction of a millimeter higher than usual.
If this difference is not taken into account and all the teeth are reduced to the same height, then the M-shaped elements will tear the wood, thereby making it difficult to cut. If the difference is too large, then the cleaning teeth will not remove sawdust from the cut well.
How to work with a two-handed tool: the subtleties of the process
In the villages, such saws are still used to cut firewood to this day, from the outside it seems like a fairly simple task. Pull in turn, that's the whole process. However, as soon as the newcomer stands on one side of Friendship-2, he will feel the nature of the saw. Every now and then she will jam and bend, tear the wood and get stuck in the cut, but just now, in other hands, she sawed like a pretty ... That's right - it's not about the saw! In the process of sawing, it is enough just to guide the tool, it will do the rest by itself. It is impossible to press and push the canvas, from this it will jam.
For convenience, the log or other material that you are going to cut should be fixed on the goats in such a way that the section that we are going to saw off seems to be hanging above the ground. Ideally, one of the sawyers should be slightly higher than his partner, for example, on a pallet - due to the bevel in one move, the saw saws through a solid one, as for hand tool, plot. Once upon a time, with the help of such a tool, they even spread logs onto boards, however, they cost a lot, due to the great laboriousness of the work.
How to turn Druzhba-2 into Druzhba-1 - sawing alone!
Alas, not always the right friend, he is also a partner for sawing, will be there. And working alone with a two-handed tool is a real mockery of the nerves. However, nothing prevents you from turning a two-handed tool into a rather massive and heavy one, but still one-handed! Namely - .
Usually the handles in the saws are not particularly fixed - there is no need for this, and it will be inconvenient to sharpen. Instead, you need to insert long sticks, between which we insert across the rail right size so they don't break under pressure. We connect the tops of the sticks with a rope, which we twist like a tourniquet, providing a high tension of the web. Thanks to this adaptation, the two-handed tool has become completely independent of two people, and is quite suitable for working in splendid isolation.
Saw sharpening - what is the secret of sharpness?
Sharpening a two-handed tool is no different from sharpening. Unless the teeth are larger, but for work it is even more convenient. For sharpening, we need a triangular file, a layout for the correct setting of the teeth and homemade vise. Since the canvas is large, and the usual vise will not work for us, it follows from two boards, matched to the size of the saw, and four legs to build desired design. The boards will act as a vice - between them we will clamp the canvas, tightly twisting the boards with a rope, and in order not to bend low, this simple system can be placed on legs.
First, check the height of all teeth - you should not have protruding or sunken elements. The protruding teeth should be ground with a flat file to the level of the others, but do not forget that the height of the tooth itself from the base to the tip must remain the same! Therefore, after grinding off its top, it is necessary to make cuts deep into the web at the base of the teeth. When grinding, it is recommended to attach a file to wooden block, which you will hold with your hands - so the likelihood of injury to your hands and fingers is much lower.
When all the teeth are brought to the same height, set them apart, this is necessary to ensure a wider cut, in which the blade will easily pass. For wiring, you need to take the teeth alternately to the left, then to the right, while it is very important to breed them at the same angle to the blade itself. To do this, they make or buy special metal strips with limiters - with such a tool you will be able to bend all the teeth under right angle. It is recommended to breed 1 mm thicker than the canvas itself or half a millimeter on each side. This operation will need to be carried out not so often - once for 5-6 sharpenings.
When the wiring is over, you can start sharpening. To do this, bring the file to the cutting edge and move it away from you until you achieve the desired result. Follow the safety rules - start moving the file only when it is already lying on the edge, and not in a swing. If you get distracted, you can run into sharp teeth with your hand! Go over one side of each element first, and then go to the other side and repeat sharpening. Please note that the edges of the teeth are different - the short ones separate the fibers of the wood, and the side ones are cut, due to which a quick, easy and accurate cross cut is obtained.
A technique such as the Friendship chainsaw will never lose its relevance. Despite the fact that gasoline models are increasingly being replaced by electric chain saws, the demand for Druzhba is falling reluctantly. For the popularity of any technique, reliability, low price and ease of operation and maintenance are needed. That is why Friendship is not going to give up positions. Great design for a reasonable price.
The man and the drink. History of Friendship
The design of the saw was tested back in 1953. Only two enterprises produced the saw, the Perm and Biysk plants, but due to the fact that the demand for the model has always been high, its production in Lately mastered in numerous small-scale enterprises. Mass production of Friendship began in 1955, and three years later the saw was shown on international exhibition in Brussels, where I received gold medal.
There are a lot of speculations about the name of the device, Druzhba cheese, and supposedly a joint Soviet-Chinese development, and even the 300th anniversary of the signing by Bohdan Khmelnitsky on the entry of the left-bank part of Ukraine into Russia are dragged here. No one really knows how it was, but the fact that the chainsaw has become an ideal replacement for the two-handed saw, which was also called Friendship, is a fact.
The chainsaw index always contains a numerical value - this is the engine power in horsepower. Sometimes the letter E appears, which indicates the use of electronic contactless ignition. The design of the saw was excellent. Separately the engine, and separately the saw mechanism. They are simply twisted into a single block and, if necessary, in a few minutes you can get access to any mechanism and part, and without tricky pullers and special experience and skills. The only difficulty with a completely politically backward element was the adjustment of a primitive carburetor, which, despite the prehistoric design, honestly did its job.
Chainsaw engine Friendship
Chainsaw Friendship specifications which provided practically perpetual motion machine, thanks to the engine, and received great respect from zealous owners, but not only them. Whole hordes of do-it-yourselfers, whole generations of technical maniacs were inspired by this simple motor, which was freely available. Some lumberjack in British Columbia would not understand what this engine meant to mechanical technicians. There were practically no engines of such a volume and such power in the country, and microcars and home-made agricultural machinery were assembled on the basis of the apparatus, even the production of small X3 aircraft was prepared. They were mounted propeller blocks, consisting of 4 engines from the saw.
True, they never went into the series, because they did not officially pass flight tests. But on the other hand, the industry of the country of the Soviets pounced on the motor and furiously began to introduce a mass of equipment into production, where a small-capacity reliable gasoline engine was needed:
walk-behind tractors;
This is how 4 horsepower in a ridiculous volume of 94 cm³ came in handy for the needs of the national economy of a huge country.
Modifications and design of the Druzhba chainsaw
For 60 years of production, the design of Friendship has not changed in any way. It's still the same two-stroke stokkid engine, from time to time the engineers raised the power, depending on the application of the engine, but on chainsaws it remained unchanged. A little later, electronic contactless ignition began to be installed on the motors, which significantly increased the reliability of the motor.
Until the end of the 80s, Druzhba 4A was produced with an electric magneto and a KMP 100 carburetor, after using the contactless system, the saw became known as 4E Electron, in the 90s the carburetor was modernized by the designers and the saw received the M prefix, and later, based on the Druzhba design elements, they developed more productive Ural saw.
Chainsaw chains Friendship, repair and price
Friendship, like any mechanism, can break down. And unexpectedly and for a long time. But those who know her whims are always ready to repair the device even in the middle of a field or in the taiga. The main troubles of the saw were associated with contact ignition and a carburetor. The fact is that, contrary to talk about the omnivorousness of the saw, not every gasoline could make the engine work to its fullest. That is, it worked, but constant adjustment of the ignition was required. The motor was too sensitive to the octane number of the two-stroke mixture of gasoline and oil, which he ate. Contacts, as a rule, cannot be repaired, and if they are restored, then this is not for long. It is better to immediately replace them with new ones, or even better to immediately install a contactless system.
Another trouble with the motor part of the saw was the leakage of the power system. Today, in principle, it is already possible to use sealants, so this issue is no longer relevant. As a rule, it is especially necessary to seal the mating plane of the carburetor and cylinder with particular care. and the saw mechanism need only periodic lubrication and fail extremely rarely.
The device, which has unprecedented reliability and endurance, a gold medal from the exhibition and the ardent love of the public, is still being produced and you can buy Friendship in Metal for 6-7 thousand, depending on the modification, and forget about problems with sawing wood for a long time.
Of course it two-handed saw Yes, you have to work alone. Have you ever tried? Yes, of course, who will cut firewood hand to hand now? Chainsaws, electric saws are sold everywhere ... But firstly, they are SOLD and not GIVEAWAY. Secondly, they demand gasoline-oil-lepestrichestvo. Which also need to be bought. Thirdly, the saddest thing is that they tend to refuse at the most inopportune moment. When it's cold and for the right gear 200 km. have to go. Has it happened?
But our native two-handed saw " Friendship 2» is practically trouble-free. And it works much quieter (unless, of course, a piece of log falls on your leg, then loudly). But again, to work with her, an assistant is needed (Homo sapiens). However, if Sapiens is you, then you can do without. With a slight movement of the hand, the trousers turn into ... a two-handed saw turns into a bow saw. True, healthy. Instead of handles, we insert long sticks, in the middle the stick is even longer and corny twist on top with a suitable tourniquet ...
All!
« Friendship 2"acquired the necessary rigidity and became" Friendship-1 ". You can drink. What I did for many years, until the sawmill began to sell slabs for firewood. Now there is enough parquet or even just a jigsaw. BUT!! Here with electricity we often have troubles. Well, we have such energy-saving electricians. Or instead of 220V they will give 170 and rejoice ... I had to invent here too. For slab two-handed saw too big. 
But in silence.
Good luck.
The first model of the Druzhba chainsaw was developed in 1953, and released in 1955. They were produced at machine-building plants in the cities of Biysk and Perm. All models of these chainsaws have a two-stroke single-cylinder air-cooled engine with a carburetor. Due to the convenient design and high performance, Druzhba is still in demand, and saws of the first models are also in working order. The main purpose of the Druzhba chainsaw is felling wood and sawing logs.
Before operating any chainsaw, be sure to read the instructions from the manufacturer and follow all safety rules.
Chainsaw models
The overall design of the saw did not change significantly over time, only individual details were refined. The number at the end of the model name indicates its power, for example, Druzhba 2 - 2 hp. In the first chainsaw released, the handles were attached to the fan cover, later they were attached to the clamp that connected the gearbox and the engine. The 4A model, produced before the 80s, already used a contact magneto and a KMP-100 carburetor. Also for the first time, automatic chain lubrication was introduced. Later, it was discontinued and the 4A-Electron model with electronic ignition began to be produced instead.
In the 90s, the old carburetor was replaced with a new KMP-100U. Chain Saw became known as Druzhba-4M and was equipped with updated chains. Based on the Druzhba chainsaw, the Ural saw was developed with more powerful characteristics. The last produced model with a similar design is Druzhba 5E.
Additional marking with the letter E or the word "Electron" means that the chainsaw uses an electronic ignition system.
Characteristics
Friendship-2
This model has become one of the most popular of the entire original series. The Druzhba-2 chainsaw operates due to a two-stroke single-cylinder engine with a power of about 2.2 kW at a rotation speed of 3200 rpm. Compared to the previous version, this one was already performed better. The frame and handle are made in such a way that the user cannot get burned by a hot engine. The case is made of high-quality alloy, which is not afraid of temperature changes. Unlike the first model, this one already has a mechanical chain brake for safe use. In the event of a rebound or break, it will stop the chain. The saw was intended both for household needs and for professional felling. Weight 12.5 kg.
Friendship-4
Friendship 4 chainsaw uses the same engine as the previous model, but with more power - 4 hp. or 2.94 kW. The engine and power unit are installed using a flange connection secured with a clamp. The engine in case of need (repair, replacement) can be easily removed in any conditions. Based on the Druzhba 4 saw, two modifications were made with markings 4A and 4E. An automatic lubrication system was added to the first saw chain, and the second used electronic ignition. The shortcomings of previous models were also taken into account, for example, the crankshaft bearing was reinforced. All versions were produced with an emergency brake system.
The friendship 4M-Electron chainsaw uses a similar engine with a power of 2.94 kW and a speed of 5200 rpm. The cylinder is made from aluminum alloy, and internally treated with chromium for increased wear resistance. Unlike earlier versions, this chainsaw has a swivel gearbox that allows you to rotate the saw unit by 60-90 ° for more convenient operation. The weight is evenly distributed throughout the body for maximum comfort. There is also a vibration damping device located between the steering wheel with handles, racks and gas tank.
To reduce the noise level, the saw is equipped with a silencer, and the noise level is 106 dB. A KMP-100U or KMP-100-AR carburetor is installed in the Druzhba 4M-Electron chainsaw. There are automatic braking and saw chain lubrication systems. Weight 12.5 kg.
Friendship-5E
The last released version of this series of chainsaws. Equipped with a two-stroke single-cylinder engine with a power of 5 hp. or 3.7 kW. Due to this, its performance is noticeably higher than that of previous models. Rotation speed 6200 rpm. At the same time, the level of emitted noise is slightly lower than that of Druzhba-4M Electron, and is 105 dB. The weight of the 5E chainsaw is 800 g less - 11.7 kg.
Table with the technical characteristics of Druzhba chainsaws:
| Friendship-2 | Druzhba-4M Electron | Friendship-5E | |
| engine's type | Single cylinder, two stroke, petrol | ||
| power, kWt | 2,2 | 2,94 | 3,7 |
| Rotation frequency, rpm | 3200 | 5200 | 6200 |
| Tire length, cm | 45 | ||
| Launch type | Manual | ||
| Automatic chain lubrication | - | + | + |
| Fuel tank volume, l | 1,5 | ||
| The volume of the tank of the lubrication system, ml | 240 | ||
| Electronic ignition | - | + | + |
| Weight without Supplies, kg | 12,5 | 12,5 | 11,7 |
| Dimensions, cm (WxHxD) | 46x50x86.5 | 46x46x88 | |
| rotary gearbox | - | + | + |
| Chain pitch, inch | 0,404 | ||
| Engine lubrication | Gasoline mixed with oil | ||
Advantages and disadvantages
Positive qualities of Druzhba brand chainsaws:
- high performance and ability long time work without interruption for 50 minutes;
- simple design;
- the presence of high handles, thanks to which you can saw in a standing position, they also provide safer use and reduce vibration;
- accessible location of all parts;
- the chain is set in motion by high engine speeds, at idle it is motionless;
- low octane fuel can be used;
- the presence of an emergency brake in most models;
- when the saw chain is stuck, the saw does not stall;
- accurate and even cut;
- the service life, subject to the rules of operation and proper care, can be from 15 to 30 years.
The main disadvantage is a lot of weight. Also, because the starter is removable, it is often lost, and there is no stop button.
Do not use leaded gasoline as fuel and do not run the saw in a closed room.
Thanks to the simple design, the repair of the Druzhba chainsaw can be done by hand. So, for example, in saws of this brand, problems with ignition often occur, especially if a contact is installed. It is extremely sensitive to various oils and gasoline. Therefore, it is better to purchase electronic ignition instead. Moreover, spare parts for a friendship chainsaw contact are expensive and irreplaceable.
If the candles are heavily flooded, then you should pay attention to the carburetor. In this case, it is necessary to slightly bend the gasoline valve inward, as a result, the amount of fuel supplied will decrease and the candles will stop getting wet.
The carburetor is also easily adjusted:
- The fuel screw is tightened to the end and unscrewed back 3 turns.
- The air screw closes completely and turns off 2 turns.
To prevent air from being drawn into the system from the outside, all seals must be tight.
Compared to other models, the Druzhba chainsaw is sold at a lower price, due to the small number of functions, but it has excellent quality and long term operation, which imported models cannot boast of.
The main malfunctions of the Friendship chainsaw - video
Soviet chainsaw, developed in the 50s of the 20th century at the Machine-Building Plant. Dzerzhinsky. Mass-produced since 1955. Before the collapse of the Soviet Union, several modifications were released
Chainsaw DRUZHBA-2 52SS
DRUZHBA-2 52SS chainsaws are of high quality, low price, and stability in work. 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 low 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 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, on suburban area, 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 high performance, in a fairly 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. The Druzhba chainsaw model is the most reliable assistant for 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 volume ratio 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 you use motorcycle oils (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 candle, 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 the cylinder suction pipe and turn the 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 depreserving the chainsaw, do not allow oil, gasoline and dirt to get into the fan, magneto parts, high voltage wire and 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.
Recommended, run-in new saw hold on Idling with short-term regassing up to the development of 2-3 tanks of fuel. 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 overheating of the engine 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 stroke 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 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 technical characteristics, Druzhba 45 has a small weight, and powerful engine, due to this, a high balancing of the tool stands out.
The DRUZHBA-2 45SS gasoline saw has a comfortable handle with a good grip, during operation the engine cools itself, by air, the body is made of quality material, resistant to frost, and 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 is activated 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, to cope with work in the garden, in the garden, to cut a tree of medium diameter.
- Engine: gasoline, single-cylinder, two-stroke
- Power: 2.94 kW
- Fuel consumption: 720 g/kWh
- Working length of the 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.
