Chainsaw Druzhba - characteristics, do-it-yourself repairs, homemade options. Chainsaw Druzhba - technical characteristics Repair and modernization of the Druzhba saw
Unlike the one mentioned above, the ignition unit does not contain remote elements and fits entirely into the original dimensions of the factory unit. The board of the old unit must be removed, chainsaw friendship ignition.
MP-1 engine designed by ZMKB Progress named after. Academician A.G. Ivchenko - single-cylinder, two-stroke, carburetor, air-cooled, displacement 94 cm3, power 4 hp. Engine lubrication - oil mixed with gasoline. The engine and the sawing apparatus are made in the form of independent units and are connected to each other using a flange connection, fixed with a clamp (which is attached to the handles of the saw). This arrangement allows you to rotate the saw unit to any angle and, if necessary, quickly replace a failed unit. Due to its functional completeness and ease of mounting, the Druzhba chainsaw engine was used to drive walk-behind tractors (Kumir, Sadovod), water pumps (Skif, TsBN-1, TsBN-2, PMP-4), generators DC(GZ-106A) for charging batteries V field conditions, mechanical winches for skidding forests, in the Kama outboard motor, in lawn mowers. This engine was also popular among those who liked to build equipment with their own hands. In the 60s in Moscow aviation institute Attempts were made to boost this engine and install it on ultra-light aircraft. Light helicopters X-3, X-4, X-5 were manufactured, each of which was equipped with propeller-motor units of 4 Druzhba engines operating through a common gearbox on the main rotor. None of the devices passed flight tests due to low engine reliability.
Modifications
Over the years of production, the general design of the saw has remained the same, but minor changes have been made:
in the 50s - 60s, a modification of the “Friendship” was produced with the handles attached to the fan cover; later the handles began to be attached to the clamp connecting the engine and gearbox.
until the end of the 80s, the Druzhba-4A model with a contact magneto and a KMP-100 carburetor was produced - discontinued;
in the late 80s, electronic ignition was used (from the contactless magneto MB-1), the saw received the designation “Friendship-4A-Electron”;
in the 90s, a more advanced KMP-100U carburetor was used, the saw received the designation “Druzhba-4M” (manufactured by ZiD) and “Druzhba-Altai” (manufactured by Sibpribormash), modern type saw chains were used.
Based on the Druzhba saw, a more powerful Ural saw was developed.
Based on the Druzhba chain saw engine, the SD-60 engine was developed to drive stationary installations (generators, pumps), which differed from the prototype in a cast-iron cylinder liner, a float carburetor, a non-removable cable starter and the presence of a speed controller.
Adviсe
Chainsaw repair friendship.
The Druzhba chainsaw has several standard breakdowns that you can fix even yourself, without turning to a specialist for help. Such breakdowns include contact ignition and carburetor adjustment. In most cases, repairing a friendship chainsaw can be done independently.
Druzhba's contact ignition is very sensitive to various oils and brands of gasoline. This causes a lot of problems and troubles for many owners of this equipment. The contact ignition elements of a chainsaw cannot be repaired. If your chainsaw has an old contact ignition, then it is better to replace it with electric ignition. It does not require adjustment, and therefore reduces the cost of maintaining “Friendship”.
When the spark plugs in a chainsaw get wet, you should pay attention to the carburetor - this means that it is overflowing. This problem can be eliminated by slightly bending the gasoline valve inward. In this case, the amount of fuel entering the combustion chamber will be significantly limited, and there will be no overflow to the spark plugs.
You need to learn how to adjust the carburetor of the Druzhba chainsaw yourself, without turning to a specialist every time. To do this, we carry out a sequence of actions: tighten the fuel screw until it stops, unscrew it exactly three turns; propeller screw until it stops and unscrew two turns. Most likely, you will need to seal the connection between the carburetor and the cylinder to prevent air “leakage”, because its appearance can cause the saw to not work. The adapter coupling can be wrapped with a strip of thin sheet metal or sealed with sealant.
In general, all connections must be sealed - this is the key to a long and quality work
All connections must be tight, because this is the key to high-quality work of “Druzhba”.
With your own hands
Chainsaw sawmill.
Homemade sawmills consist of the following structural parts: a frame, lifting brackets, a carriage with a manual winch, and an electric saw unit. Still homemade disc sawmill has several auxiliary units: stops, supply suspension electric cable etc.
Frame - the basis of the structure homemade sawmill. All nodes, both main and auxiliary, are located on it. The frame of the homemade band sawmill itself is welded from several elements. Firstly, there are four legs made of channel No. 8 (80x40x4.5 mm): two front ones with a height of 495 mm and two rear ones with a height of 800 mm. To increase the support area, “soles” measuring 150x150 mm made of steel sheet 5 mm thick are welded to them from below to increase the support area. The legs of a homemade sawmill are connected in pairs (front and back) with crossbars made of channel No. 10, 700 mm long. Guide pockets (made of 5-mm steel sheet) for support-lifting brackets are welded to the walls of the latter from the outside (the uprights of the latter should move freely in the pockets, but without large gaps), and from the inside in the upper corner between the wall and the top shelf there are three lugs for handles
The rear legs are connected to each other by a longitudinal connection made of a rectangular pipe 40x25x4.
Vertical movement of the brackets (lifting a log to saw off another board) is carried out using ropes wound around the gate handles. In a given position (with a minimum interval of 5 mm), the brackets are fixed through the holes in them with a pin with a spring cotter pin.
And the last, but perhaps the most main detail homemade frame - a longitudinal guide for the carriage of the saw mechanism. The carriage of a homemade sawmill is mounted level, strictly horizontally. The guide is made of channel number 16. Its length is 5400 mm, and it is slightly larger maximum length sawn logs (in in this case 4.6 m). The guide is mounted on the rear (high) frame posts. The cantilever ends of the guide are supported by struts made of a rectangular pipe, which additionally connect them with the rear pillars of the frame. If deflections are observed on the guide, they should be eliminated with additional posts or struts.
The carriage is the most labor-intensive component for making a homemade sawmill. This requires fairly precise turning, milling, and drilling work (therefore, it makes sense to entrust it to specialists). The carriage is used for longitudinal movement (feeding) of the sawing unit mounted on it - an electric motor with chain saw. The main parts of the carriage: body, guide and limit rollers, drive winch.
Carriage body - welded structure. The body casing is made of 5 mm steel sheet, the bracket and bottom are made of 3 mm, and the lining is made of 2 mm sheet. The holes in the housing are drilled according to the holes in the flange of the electric motor mounted on the carriage, and the dimensions of the socket are determined by the drive sprocket of the unit with the saw chain put on it and the necessary clearances.
Restrictive and guide rollers are mounted inside the housing. By design, they are all of the same type, they only differ in the length of the axes-regulators and the outer dimensions of the supports. The axles are eccentric, made of steel rod with a diameter of 28 mm. Rollers - ball bearings series 180203 (with double-sided seal). The carriage with the saw unit is moved by a winch using ropes, the ends of which are fixed in the winch drum and on opposite sides of the frame.
The drum is also a welded unit. It is machined from a round rod with a diameter of 40 mm. Three washers are put on and welded onto it (two at the ends and one in the middle), which serve as limiting collars when rewinding the cable on the drum from different sides of the guide, due to which the carriage moves. The rotation of the drum is carried out by a handle using a lever.
The saw unit of a homemade sawmill is assembled mainly from factory-made parts and components. Firstly, it is a three-phase flanged electric motor with a power of 2.2 kW and a rotation speed of 3000 rpm.
What do you need to know?
The device of a gas-powered saw
Chainsaws “Ural”, “Druzhba” and “Druzhba-Altai” consist of such main components as an engine, clutch, gearbox, sawing apparatus, frame with handles and starter controls.
The main components of the engine are the cylinder, crankcase, crankshaft with connecting rod, cooling system, piston, ignition and power supply systems.
The clutch includes a drive disk, on the rim of which there are two cut cast iron rings, and a driven disk with a rim in the shape of the letter “L”.
The gearbox is represented by a housing and two bevel gears: driven and driven, which are mounted on ball bearings in the housing. The frame consists of a rack and a steering wheel with handles, which are connected to each other by a vibration damping device, which consists of a hinge and a spring.
The sawing apparatus is represented by a saw chain and a bar. The power system includes components such as a gas tank, tap and carburetor. When the tap is open, fuel is supplied from the gas tank to the carburetor through the gas pipeline by gravity. The engine is started by a removable starter, consisting of a pin, brakes, ratchet, bolts, shaft, drum, housing, cable, spring, handle and bushing.
Working with a chainsaw
All buyers of gas-powered saws want to quickly test their purchase in real conditions. Remember that you should not start the chainsaw without a saw set and preliminary adjustment of the bar, chain and sprocket - the drive wheel. There is a possibility that the clutch may burn out if you constantly press the throttle button.
Immediately before intensive work, it is necessary for the tire, sprocket and chain to get used to each other. And you need to break in the engine itself, while emptying the entire fuel tank and applying little effort. Do not break in the saw at idle speed, as this may cause increased engine wear.
Move the ignition switch to the working position before starting the chainsaw, pump gasoline into the carburetor, pull out the choke and pull the retractable starter with a strong jerk. If you spin the engine sluggishly with a retractable starter, then the likelihood of filling the spark plug increases, and attempts to start the engine will be reduced to zero. In this case, the spark plug must be unscrewed and warmed up so that all the vapor of the fuel mixture evaporates under heat.
The main points of operation in the operating instructions for the Ural, Friendship, Goodluck and others chainsaws are as follows:
The chainsaw must be held with both hands; wrap all your fingers around the handle of the chainsaw. Thumb on your left hand, place it under the front handle.
When working with a chainsaw, you must stand to the side of this tool; you cannot stand directly behind it.
For sawing, it is customary to use the lower and upper edge of the chainsaw. If you prefer to cut with the top edge, then the chainsaw goes towards you, otherwise - away from you.
If possible, you should keep your back straight when working with a chainsaw. It is preferable to bend your legs at the knees. To maintain balance, it is advisable to spread your legs wider.
It is very dangerous to move around with a running chainsaw. When moving between sawing places, it is necessary to turn off the chainsaw for safety reasons and put on the brake.
It is better to start cutting with the edge of the bar, which is located closer to the body of the gas-powered saw.
If you plan to use your chainsaw frequently, then it is advisable to re-read the operating instructions for the Husqvarna, Friendship, Ural, etc. chainsaw. and purchase special protective clothing: a protective jacket with ventilation, a helmet with a mask, special pants with protection against saw cuts, boots with protective steel plates and durable gloves.
Seasonal use
Two-stroke internal combustion engines require special attention during changing seasons of operation. When using a gas-powered saw with a temperature outside the window below 0 degrees, you need to warm up the carburetor itself, since the fuel mixture can crystallize, thereby increasing the viscosity of the mixture. In this case, the saw itself must adapt to this temperature regime.
If the chainsaw is kept in an unheated building in which there is less than zero degrees Celsius, it is undesirable to bring it directly into a room where the air temperature rises above 0°C, since otherwise condensation may form, which will lead to malfunctions in the functioning of the equipment and other negative consequences.
Fuel mixture
All chainsaws have 2-stroke internal combustion engines. There are two tanks: for the fuel mixture and oil. The volume of the tank in the usual case is about 0.3-1 liter, and the container for oil is usually 2 times smaller. These proportions lead to the fact that after the fuel mixture in the tank runs out, the oil is consumed almost equally.
A chainsaw with a two-stroke engine, according to the operating instructions for chainsaws Friendship, Ural, Goodluck, Shtil, Hustkvarna, is usually fueled with a mixture, not gasoline, which contains oil and gasoline in certain proportions. The process of preparing the fuel mixture for such engines is very important, so you should not neglect the manufacturers’ requirements for its production. In a two-stroke engine, friction parts are lubricated, unlike a four-stroke engine, thanks to the fuel mixture, in which a certain part of the oil is present.
In two-stroke engines, an oil pump system cannot be used; oil is usually added to gasoline. Before directly pouring the fuel mixture, it is recommended to shake it thoroughly. For chainsaws, as a rule, a fuel mixture is prepared from oil and gasoline. You will need 40 milliliters of oil and 1000 milliliters of gasoline. Mix the mixture thoroughly before pouring it into the fuel tank.
When making a mixture for a chainsaw, it is recommended to use only branded oils. The suggested brands of oil that should be used to prepare the mixture are indicated in the instructions. It is prohibited to use two-stroke oils for low-speed engines.
It is best to use unleaded gasoline. The octane number of gasoline must be at least 90. The finished fuel mixture must be stored for no more than 1.5 months. Using an old mixture will definitely cause engine failure.
To lubricate the chain, you can use any pure oils or branded special ones. For a domestic chainsaw, 76 gasoline is suitable; for an imported one, it is better to take 92 gasoline and higher. Do not use used oil or low-viscosity oils such as spindle, industrial and transformer oils to lubricate the chain. Before starting the chainsaw, you need to remove it from the place where the refueling took place to avoid fire.
Running in a chainsaw
Before using any imported chainsaw, it is required to run it in first. On the one hand, it is needed to extend the service life of the engine, because the moving parts must first get used to each other during the break-in period. In addition, during break-in you will be able to acquire certain skills in working with a gas-powered saw. This is important for those users who are reading the operating instructions for the Makita, Friendship, Ural, Shtil chainsaw for the first time and working with the chainsaw.
Running in the chainsaw must be done with a minimum load on the engine in a cyclic mode of operation: sawing lasts 1-1.5 minutes, then idle for 15-20 seconds. The engine will gain maximum power after ten full tank refills. You cannot run the engine at idle speed, because the formation large quantity carbon deposits provoke sticking of the piston rings or failure of the spark plug.
Characteristics
The Druzhba chainsaw is one of the oldest models, which has a history of more than half a century. It was developed in 1953, and in 1955 its mass production began at two enterprises in Perm and Biysk. The chainsaw received a gold medal at the Brussels Technical Exhibition in 1958.
Since the beginning of the 90s, private enterprises began to produce saws and spare parts for them. The saw received its name in the year of celebration of the reunification of Russia and Ukraine in 1954. Despite its long history, technical specifications Friendship chainsaws remain acceptable to many consumers.
The chainsaw is equipped with a single-cylinder, carburetor, two-stroke MP-1 engine, air-cooled and with a displacement of 94 cubic meters. see The digital value in the name of the chainsaw means power in horsepower: “Friendship 4” means the power of the chainsaw engine is 4 hp. pp., “Druzhba 4E” has an engine with electronic ignition. The engine is lubricated with oil mixed with gasoline. Independent mounting on the flange connection of the power unit and engine made it possible to position the saw unit in both horizontal and vertical positions. Replacing any unit due to separate fastening is not difficult.
It is from the Druzhba chainsaw that the technology of automatic saw chain lubrication originates, which can significantly increase the service life of the chain and guide bar, which are universal. This allows the use of saw chains with different pitches, in case of changing guide sprockets and damper device tactics. The saw has an inertia clutch, which sets the chain in motion by increasing engine speed. When the chain bites or the saw is overloaded, the engine does not stall. The characteristics of the Friendship chainsaw satisfy the needs of consumers so much that millions of people have given it their preference for many decades.
Saw weight, without consumables is 12 kg. A chainsaw, when operating at low speeds, allows the use of any oil. The engine is capable of “consuming” fuel with a low octane number. The saw is also equipped with an emergency brake to stop it in in case of emergency. The instructions for the Druzhba chainsaw contain a complete description, with possible problems that may arise and ways to eliminate them.
In some European countries, the name of the saw “Friendship” has become a household name. This is the name of any chainsaw. And the two-handed saw became popularly called “Friendship - 2”, due to the participation of two people in the process. In addition, the high location of the controls allows the operator to cut in a standing position, while modern saws, the operator's normal working posture is a kneeling position. The service life of a saw is, on average, 15 – 30 years. The main purpose of a chainsaw is: felling trees, cutting trees, sawing and harvesting firewood.
Preparing for work.
First, check the chainsaw for chain tension, which should be adjusted; sagging of the chain is unacceptable. Poor chain tension can wear out the tire and sprocket faster than expected, greatly increase the load on the chain saw body and prematurely damage the shock absorbers.
The chainsaw chain should not touch hard objects; turn on the chain brake, move the brake handle away from you so that the chain does not rotate prematurely. Pull the throttle control lever, this can be done when the engine is cold. Place your toe through the rear handle. Pull out the starter cord by pulling the handle until the chain saw sneezes.
After this, start the chainsaw and move the air damper to the working position. Press the gas and put the chainsaw into idle speed. Pull the brake handle towards you to return it to its previous position. Now the chainsaw is ready for work!
Before starting work, check the tool brake. Next, you should set the saw on a level and hard surface and press the throttle. Do not release the chainsaw handle, press the handle and activate the brake. The brake will be considered ok when the chainsaw chain stops.
Before starting the chainsaw, be sure to check that there is chain oil in the tank. If there is no lubrication at high speeds, problems with the chain and bar may occur. You can check the presence of lubricant during operation. When the chainsaw is operating at high speeds, it is necessary to point the bar at clean paper. If the lubricant flows normally, a strip of oil will be visible on the sheet.
How to fell trees
Just before felling a tree, you need to read other saws and determine where it will fall. Look at the number of branches and where the main ones are facing, it is worth taking into account the direction of the wind and the natural slope of the trunk. It is necessary to fell the trunk in the direction where it is most convenient for it to fall. Cut off the lower branches of the tree just before felling.
Depending on the thickness of the tree and other features, there are several methods of tree felling, the most optimal solution selected only by professional lumberjacks. Before felling a tree, you should make sure that it will not damage anything after it falls.
Stand from the trunk of the fallen tree to the left, cut off the branches from it, move from the bottom of the trunk. Try not to use the nose part of the chainsaw; work slowly. Lean the chainsaw against a thigh or tree trunk and use all parts of the bar to cut. Place the gas-powered saw on its side, with its entire weight on the trunk, and cut branches from the top of the trunk. When the branches are cut off from the top and sides, you can turn the trunk over and saw off the rest.
However, remember that at a certain position of the tree, which rests on one branch, the trunk may move or roll when it is trimmed. For thick and large branches, it is necessary to saw off in parts, moving from its end. If the branch is too thick, it may need to be sawed on several sides.
When you have sawed off all the branches from the trunk, you can begin sawing the trunk - bucking it. Bucking must begin from the trunk to the top. If the trunk is located on an inclined plane, then when bucking it is forbidden to stand below the tree trunk. If a gas-powered saw is stuck in the trunk, it must be removed immediately. Stop the engine and tilt the barrel until you can remove the chainsaw.
Chainsaw care
Gas-powered saws must be kept under cover or in open spaces. Before storing the tool, it must be cleaned of sawdust and dirt, drain the fuel from the tank, remove the saw chain and place it in oil. Open places that are subject to corrosion must be lubricated with a layer of oil. The chainsaw must be preserved for long-term storage.
After working with a gas-powered saw, you must do the following:
Check the chain saw tension and lubrication. If you run out of oil, you need to add it to the tank and tighten the chain if it is loose. Let the tool rest and cool for a while, then fill the saw with gasoline.
Do not forget to check the air filter, which may become clogged with shavings and sawdust during operation. Therefore, it needs to be removed, blown and washed in time. If necessary, you should clean the filter from dirt.
After every hour when the chainsaw was working, you need to lubricate the driven tire sprocket and immerse it in heated oil.
After 25 hours of operation, it is necessary to remove dust from the cylinder windows, combustion chamber, piston grooves, rings and piston crown.
Starting the engine
It is necessary to carefully read the operating instructions for the stihl chainsaw, friendship, calm, ural, especially the sections that relate to starting a cold and hot engine. The principle of starting the engine is the same in all saws. The only differences are in the placement of the gas saw controls - the choke lever and the STOP button.
With separate controls
You need to start a cold engine in this way:
turn the switch to the “on” position;
pull out the choke lever all the way;
move the choke lever to the middle position (the choke is open, the high idle position remains on);
repeat the startup procedure;
After starting the engine, immediately press and release the throttle trigger - the choke lever will automatically move to the working position.
You need to start a warm engine like this:
turn the switch to the “on” position;
pull out the choke lever all the way, then move it to the middle position, or do not touch it and leave it in the traditional idle position;
carry out the procedure for starting the engine;
when the choke lever is in the increased idle position after starting the engine, press the throttle trigger and release it;
The engine can be stopped by moving the switch to position 0 (off).
With combined controls
You can start a cold engine in the following sequence:
simultaneously press the throttle trigger lever and move the damper control shaft to the lowest position, the air damper in this case is completely closed;
pull the handle of the starter cord several times until the first flash of fuel in the engine;
move the control shaft to the middle position;
repeat the procedure for starting the engine;
After starting the engine, press and release the throttle trigger, the control shaft in this case automatically moves to operating position I.
Starting a warm engine according to the operating instructions for the Stihl chainsaw and any other gas-powered tool is carried out as follows:
move the control shaft to the normal idle position;
start the engine;
press and release the throttle trigger when the shaft is in the high idle position.
Safe work rules
It is strictly forbidden to work with an unregulated and faulty gas-powered saw.
When starting the engine, do not wrap the cable around your hand.
When starting the engine, the chain should not touch any objects.
To avoid damage to the chainsaw and accidents when felling a falling tree, do not cut right through the tree. You should leave 3-4 centimeters of unfinished water.
Turn off the chain when moving from one tree to another.
Work on installing the chainsaw chain and adjusting its tension level should be carried out with the engine not running, wearing a protective helmet and gloves.
After filling the gas-powered saw with oil and fuel, carefully remove any remaining oil and fuel from its surface and wipe it dry.
It is forbidden to cut down a tree over which another one hangs, as well as to cut down heavily overhanging or leaning trees, due to the danger of such an operation for the lives of sawyers.
When felling a tree, only the sawyer and his assistant can remain at the chainsaw; other people must be at least 50 meters away from the working tool. The assistant warns the sawyer by voice or signal that the tree is about to fall.
Before finishing sawing, the sawyer and assistant must carefully monitor the direction in which the tree is falling, moving quickly to the side with the saw, but not against the butt of the tree.
Passing through a moving chain is prohibited. If the chain runs out or breaks, you must immediately release the gas and turn off the engine. The saw chain may only be attached to the bar when the engine is not running.
When refueling a gas chain saw, according to the operating instructions for the Huskvarna, Goodluck, Ural, Shtil and other chainsaws, smoking is prohibited.
Filling a chainsaw with fuel mixture at a distance of less than 20 meters from an open fire is strictly prohibited.
The carburetor should be adjusted so as to ensure the least contamination of the exhaust gas inhalation zone, and stable idle speed of the engine, at which the saw chain does not move along the bar.
When moving over a long distance, the chainsaw engine should be turned off and tightly covered with a special cover.
Tree felling using a gas-powered saw must be done exclusively in a prepared cutting area, where dangerous hanging and dead trees have been removed.
Prices / Order
Firms
Choosing a chainsaw is both simple and complex at the same time. That is why the answer to the question of which chainsaw to choose cannot have a clear answer. In order to choose a reliable chainsaw, you need to take into account factors such as the types of work for which it is intended, the time during which you intend to work, and even the build of the person (or people) who will work with this tool. Despite the variety of models and manufacturers producing chainsaws, we will try to tell you which chainsaw is best to buy in each specific case.
Choosing a chainsaw depending on the class.
Before you find out which chainsaw is better, clearly decide what you are going to use this tool for, since the cost of a chainsaw is primarily determined by its power and ability to work for more or less long periods of time - that is, the class of the chainsaw.
Household chainsaws are best choice chainsaws for the garden. This type of chainsaw is used occasionally and for short periods of time. With such a saw you will find a minimum functionality, however, with the help of such a saw you can cut enough firewood to cook kebabs or light a fire in the fireplace.
It is assumed that a household chainsaw is used by its owner for no longer than 40 minutes a day. The service life of such a chainsaw ranges from 400 to 1000 operating hours. But city dwellers who are not accustomed to heavy loads will like their relatively compact size and light weight. These qualities compensate for the low power of a household chainsaw. By choosing a household saw you will receive a reliable assistant for various simple work around the house and garden.
The best models in this class are chainsaws: Stihl MS 180; Husqvarna 235 X-TORQ ; Echo CS 350WES
Semi-professional chainsaws - if you plan to perform more complex work or use a chainsaw in the construction or expansion of a house, then when deciding which brand of chainsaw to choose, opt for semi-professional chainsaw models.
These tools shouldn't be used all day long without stopping, but they can do more than their household counterparts. They can handle logging in volumes of one household. Sometimes professionals also use such saws - for example, when trimming knots in logging sites.
You can choose a semi-professional chainsaw on our website among the models: Stihl MS 250; Stihl MS 270 ; Echo CS-4200ES; Echo CS-5100ES
Professional chainsaws are a tool for lumberjacks. They are powerful, reliable and can work for years, 8 hours a day without interruption. In order to provide a long working life - 1300 - 2000 hours - best chainsaws They are made from durable and wear-resistant materials, which provides them with a longer “mileage” without major repairs.
Choosing a chainsaw depending on service availability
No matter how reliable your chainsaw is, you need to remember that sooner or later any tool requires maintenance or repair. Therefore, when answering the question of which chainsaw to choose, you must take into account whether there is a branded service center in the place where you live.
The easiest way to choose a chainsaw is to determine whether the package contains instructions in Russian. This guarantees that the delivery of the tool was “white” and all manufacturer’s warranties apply to the purchased chainsaw, and it is also possible to use the services of a service center.
In addition to repair and maintenance, the chainsaw needs to “straighten” the chain from time to time. The performance of the chainsaw depends on the condition of the chain. A professional instrument is often adjusted daily.
Choosing a chainsaw depending on power and weight.
These two technical characteristics of a chainsaw are closely interrelated. That is, increasing power entails a simultaneous increase in mass. You need to understand that for a household chainsaw, high power is not the most important selection criterion. For a non-professional, reliability and light weight are more important. You simply cannot cope with a powerful pilof.
For professional chainsaws, the power spread is quite large, since the choice of chainsaw in this case depends on the type of work and even on the time of year. For example, there are chainsaws, the design of which allows you to work with one hand.
Additional options when choosing a chainsaw.
Pleasant little things like an anti-vibration system are necessary for those who hold a chainsaw in their hands for a long time. For long service life of chainsaws, it is important that the chainsaw has an air filter that protects it from dust contamination.
It is especially important that the chainsaw is equipped with a reliable brake - after all, it is one of the most dangerous tools.
The length of the saw bar must be consistent with the power of the saw; it is not worth installing bars longer than the length indicated in the length passport.
We hope that our tips for choosing a chainsaw will help you make the right choice.
What keys do we use?: chainsaw friendship price chainsaw friendship 2 chainsaw friendship chain chainsaw friendship characteristics
36441 03/08/2019 7 min.
A chainsaw can make it easier daily life each of us. This tool is practical, reliable and fully worth the cost of purchasing it.
The variety of models is amazing, but many do not mean quality. Therefore, when choosing this type of tool you need to start from the manufacturer, since his name can tell a lot about this technique.
Firstly, the company producing chainsaws must have many 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 this material just you. Here's an overview of two best models, produced by the leading company “Druzhba” (about others in this article).
High-quality products made by professional hands
For more than thirty years, the company has been producing chainsaws both for construction and agricultural work, and for activities in terms of deforestation on a huge scale (see). The diversity of its production will not leave even the most avid critics indifferent, since models with different technological characteristics, different power and configurations are “born” from under its machine.
Z and over the many years of its activity, the manufacturer managed to take the championship level among modern competitors. And this is not surprising, since such significant experience allowed us not only to improve our equipment to the smallest detail, but also to develop a unique system that allows us to produce high quality products, at the same time, without inflating prices.
In fact, we should be proud of our “countryman”, because it is the Russian company that is “giving the wagon” foreign manufacturers and is considered one of the best of its kind. And it was from under the machine of this company that some 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
At this point, you can familiarize yourself with each model separately, and determine for yourself which one is most suitable for you. So let's get started.
"Friendship - 2"
This model is equipped with an engine that runs on gasoline and a 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 ). It is this feature that allows high-level performance to be produced in a fairly short time range.
Moreover, it is a new product 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 balancing of the chainsaw.
If we talk about external developments, then we can say with full confidence that it is very convenient to use, thanks to the handle with an excellent grip built into its design. The functionality of the saw is designed in such a way that you will not get burned 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 increases in air temperature, and also does not change its characteristics over many 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, thereby protecting them from corrosion and external influences.
It is also important that this model equipped with mechanical chain brake, whose main purpose is to protect you from accidental chain drops. Since he is able to stop the operation of equipment in seconds. Thus protecting you from accidents.
In fact, working with this chainsaw is quite simple and convenient, and its main advantage is high level performance and wear resistance. It is easy to control, quite maneuverable and multifunctional.
Chainsaw friendship 2 m is perfect for you to work on summer cottage, since with its help you can easily cope with sawing and harvesting firewood, dry branches and knots on trees, as well as small-diameter trees.
It is also worth noting that It is equipped with rubber shock absorbers, thanks to which vibration feedback and various vibrations are minimized. This model is a real find for summer residents, farmers, people involved in professional activity concerning working with a saw.
"Friendship - 4"
This model is designed for high-quality and high-speed cutting process wooden materials. This type 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 quick and easy start system, a quick chain stop system and vibration damping system. Also The kit includes goggles and gloves for your safety.
The chainsaw has excellent weight distribution, making working with it a real pleasure, as it is efficient and convenient. Thanks to the instant chain stop feature, the tool will not accidentally injure you or people around you.
The model also has a kind of drive coming from the engine (gasoline) with a manual start-up system. And thanks anti-vibration capabilities you can work comfortably with the saw.
| Specifications | Chainsaw “Friendship – 2” | Chainsaw “Friendship – 4” | |
| Chainsaw class | Household | Household | |
| Engine type | Two-stroke petrol | Two-stroke petrol | |
| Tire length | 45 cm | 45 cm | |
| Working volume | 45 cm cube | 45 cm cube | |
| Engine power | 2.1 kW | 2.6 kW | |
| Chain pitch | 1.5/0.325 inch | 1.5/0.325 inch | |
| Fuel type | Gasoline (A-92) + oil for two-stroke engines | ||
| Startup type | Manual | Manual Fuel volume. tank:520 ml | |
| Oil tank size | 260 ml | 260 ml | |
| Fuel tank volume | 550 ml | 550 ml | |
| Chain lubrication | Automatic | Automatic | |
| Weight | 4.5 kg | 4.5 kg | |
| Guarantee | 12 months | 12 months | |
Do not doubt that such a purchase will delight you throughout many years and you will not have to systematically repair the saw (if correct operation and ), since it is designed to work and not break. Quality, reliability and affordable cost are the main lingo of the Druzhba company! Don’t forget to take care of your engine, read this article to find out.
Or arrange delivery
When placing an order on the website, you will automatically see all delivery options available for your city, their cost and timing.
The Vetreno online store has 6 order delivery options:
- To the point of delivery of orders (Moscow, St. Petersburg, Yekaterinburg, Kaluga, Nizhny Novgorod, Orel,Rostov-on-Don, Tver, Tyumen, Chelyabinsk, Yaroslavl).
- Courier to the address (Moscow, St. Petersburg, Nizhny Novgorod, Yaroslavl, Kaluga, Orel, Bryansk, Vladimir, Vologda, Ivanovo, Kostroma, Ryazan, Tula, Tver, Ekaterinburg, Tyumen, Chelyabinsk, Rostov-on-Don).
- transport company SDEK
- transport company "Business Lines"
- EMS Russian Post.
- any whim for your money :)
Orders are sent from the city of St. Petersburg.
About prepayment!
Attention! In regions (except for MSK and St. Petersburg) prepayment may be required. To be confirmed with the manager.
Delivery to the point of delivery of orders
Attention! Pickup cost from 250 rubles.
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Courier delivery
Minimum order amount - 1500 rubles
Please check with our store managers for the cost and time of courier delivery. If delivery to your apartment/office is quite expensive, you can always use delivery to the point of delivery (pickup).
For courier delivery, it is possible to pay for the goods upon receipt in cash.