Speed ​​of the drive sprocket of the Druzhba chain 2. You have a Druzhba chainsaw - then our advice is for you

Friendship

Chain Saw DRUZHBA-2 45CC reproduces the work of a gasoline engine, the engine is two-stroke, and has a high power of 2.2 kW, so the rotation speed is generated at 8700 rpm, with such indicators there is high productivity in work, for quite a short time.

The DRUZHBA-2 45CC chainsaw has quite high quality, And good assembly, made in an improved design, with new features, high specifications, Druzhba 45 has a light weight and a powerful engine, due to this the instrument is highly balanced.

The petrol saw DRUZHBA-2 45CC has a comfortable handle with a good grip, during operation the engine itself is cooled by air, the body is made of quality material, resistant to frost, and does not change in its characteristics after a long time, 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 cases of kickback or failure of the device, 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 preparing firewood for the winter, for cutting down dry branches and trees, for cutting knots, and can cope with work in the garden, in the vegetable garden, and cuts wood of medium diameter. The Friendship chain saw has internal rubber shock absorbers, which reduce oscillations and vibration. This saw model perfect choice for farmers, landowners, summer residents, people with professional requirements for working with a saw.

Tire length 45 cm
Engine type petrol
Engine power 2.2 kW (8700 rpm)
Cylinder volume 45 cc
Fuel tank volume 0.52 l
Volume oil tank 0.26 l
Dimensions 51x26.5x27.5 cm
Weight 4.9 kg
Country of origin: China

Chainsaw Druzhba BP - D 45/2500

Specifications

Chainsaw class: household
Engine type: 2 stroke. petrol
Tire length: 45 cm.
Working volume: 45 cm cubic.
Motor power: 2.1 kW
Chain pitch: 1.5/0.325 inch
Fuel type: Gasoline (A-92) + oil for two-stroke engines
Start type: Manual
Fuel tank capacity: 550 ml
Oil tank capacity: 260ml
Chain lubrication: automatic
Weight: 4.5 kg
Country of origin: China
Warranty: 12 months.

Delivery set: chainsaw, instructions, set of keys, tire, chain, tank for mixing gasoline and oil, file, cover for the tire.

Description of the chainsaw:

Chainsaw Druzhba - at a very tempting price. Preparing firewood for the dacha, cutting down a tree, removing dead wood - these are the tasks that the Druzhba saw can handle perfectly.

A powerful 45 cc two-stroke engine combined with a 450 mm long tire demonstrates excellent results and productivity. The anti-vibration system helps reduce the impact of vibration on the human body, in particular on the arms, hands and fingers.

Pleasant and thoughtful design is easy to remember. The housing elements do not block access to consumables. The rich delivery set allows you to quickly set up and prepare the Druzhba chainsaw for work.

If you need advice in choosing a chainsaw, contact our managers, they will definitely advise you. The choice of chainsaw depends on the type of work performed, its frequency, and tool loading. Also important characteristic is the weight of the chainsaw. You can choose chainsaws in our chainsaw catalog.

Repair of the ignition system of the Druzhba chainsaw and its full description.

The Druzhba chainsaw is one of the leading tools in the forest industry in terms of price-quality ratio. But if this tool breaks... I don’t recommend repairing it yourself, although... if not Money then you can try.

Ignition saw friendship

Chainsaw friendship repair and weak points. The Druzhba chainsaw is one of the leading tools in the forest industry in terms of price-quality ratio. But if this tool breaks... I don’t recommend repairing it yourself, although... if you don’t have the money, you can try.

The weak point is the starter, it is made of low-quality steel and, depending on the time and intensity of use, you have to either change it, or boil it, or the easiest way is to “scrape” it with a file. The starter cover also becomes unusable and has to be replaced.

And finally, third weakness in this device, these are springs that are located in the starter and when the cable is pulled out and returned to its original position, they wear out very much (in the cold, these springs wear out three times faster) So I do not recommend pulling this spring to no avail.

If you have old chainsaw then you probably already understood that contact ignition is very sensitive to various types of sticking due to oil or gasoline, or contact brands. This mechanism cannot be repaired and is very expensive. Therefore, it is recommended to replace the contact ignition of the chainsaw with an electronic one; this will significantly save you money.

If you find that your spark plugs are wet, then your carburetor is undoubtedly dripping. To do this, you need to bend the gasoline valve inward. The problem will disappear.

To do this, you need to tighten the fuel screw all the way and unscrew it about three turns. Air propeller Tighten until the thread gives way, and unscrew two turns.

It is recommended to seal it with a cylinder so that air does not get trapped. You can also wrap the transition coupling with a steel patch or treat it with a special sealant. All connections in the chainsaw must be sealed, and there will be no problems with the operation of the saw.

Despite the widespread use of imported chainsaws, the population, especially in rural areas, still uses many domestic “Druzhba” and “Ural” machines. Both saws have a common drawback that I also had to deal with - the fragility of the electronic ignition unit.

This problem is not new - see the article by P. Ivanov “Repairing the ignition unit of a chainsaw” in “Radio”, 2003, No. 2, p. 45. Nowadays it is not difficult to buy a block, but it is expensive and does not last long. I decided to start developing my own design, which I bring to your attention.

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.

The block diagram is shown in Fig. 1. Generator coil L1, ignition coil (high-voltage transformer) T1, capacitor C1, induction ignition pulse sensor L2 and a duralumin base were used from an old ignition unit. The remaining elements are newly introduced.

Contact ignition on Druzhba is very sensitive to various brands gasoline and oils and causes a lot of trouble for many. The elements of such ignition are not repairable and are not cheap. We recommend that owners of old chainsaws replace contact ignition with electronic ignition. This will eliminate the constant problems with its regulation and, ultimately, save money.

If the spark plugs are wet, it means the carburetor is overfilling. We fix the problem by slightly bending the gasoline valve inward. This will limit the amount of fuel entering the combustion chamber.

What craftsmen make from old chainsaws.

Probably, any man who likes to spend time outdoors, in the country, or generally lives outside the city, wants to buy or already has a chainsaw.
Featured on Russian market chainsaws are divided into professional categories that determine the scope of application, technical characteristics, service life, quality and price.

Based on the price, we can say that the cheapest chainsaws for household use are also called “brush cutters” because small size and weights are popular among tourists, fishermen and hunters. However, when buying a cheap chainsaw, you need to remember that almost all of them cannot be repaired. This class of chainsaws is chosen according to the principle “the cheaper, the better”; such a tool is made by a little-known Chinese company and, most likely, cannot be restored after a breakdown. Our market also offers decent options for household chainsaws - especially brands that are part of large European companies. Such chainsaws are more expensive, but they come with acceptable quality and reliable service.

Professional chainsaws are more reliable in terms of repairs and service life; they are used for serious work - logging, construction. Professional chainsaws have a much more powerful engine, and the tool body is made of durable, wear-resistant materials. Such chainsaws are presented on the Russian market mainly by products of Swedish (Husqvarna, Partner) and German (Stihl) brands, there are also Japanese (Makita). It must be said here that that, unlike Chinese chainsaws, European ones have a network of official representatives and services.

A European-made chainsaw can not only serve for a long time and properly, but also perform other functions that are not entirely standard for a chainsaw.
Based on the design of chainsaws, it can be noted that all chainsaws are standardly equipped with tires of various lengths - from 33 to 45 cm. However, as tests show, this is not the most important parameter for chainsaws. Thus, a long bar allows you to cut a thick trunk faster, however, the friction force in this case is greater, so that with equal forces on a long bar, the chain stops sooner. In general, according to experts, a short tire is even preferable.

We can say that power in a chainsaw is also not the main thing. There is another significant characteristic of a chainsaw engine – torque, and it is this indicator that speaks about the power capabilities of the motor. However, it is usually ignored in the description of chainsaws, but, as tests have shown, it is no less important than power.

When starting a chainsaw “cold”, after turning on the ignition, it is usually recommended to close the throttle valve (until the first spark), and then switch it to operating mode. Most chainsaws have to do this manually, but there are also semi-automatic controls.
After refueling the chainsaw, you usually have to crank the starter several times until the fuel reaches the carburetor; to speed up the process, install a booster pump.

Chain tension may vary depending on different manufacturers and chainsaw models. This is how chainsaws can have a semi-automatic machine - you loosen one wing nut, tighten the wheel and return the wing nut to its place. This operation takes no more than 30 seconds and does not require any additional tools. On other chainsaws, you will have to unscrew two nuts with a wrench, tighten the bolt with a screwdriver and screw the nuts back.

The familiar capabilities of chainsaws can be expanded. When fishing or hunting, a chainsaw can become an indispensable companion, and if you have a private house or cottage, life without a chainsaw is boring.

The chainsaw consists of an engine with a sprocket on its shaft that rotates the chain. And the chain, in turn, runs along a guide - a bar. Since the engine does not care what to rotate, the chainsaw can be a universal drive for a wide variety of attachments. Using various attachments, you can use a chainsaw to cut metal, concrete and stone, drill holes in the ground, use it as a winch or a boat motor, and even pump water.

Such a wide range of possible jobs performed by chainsaws is facilitated by the presence of a powerful (relative to its weight), compact, reliable and unpretentious gasoline engine, capable of operating in the most difficult conditions. Also, a membrane type carburetor and a sealed fuel supply system allow the chainsaw to work in different positions, except perhaps completely upside down, and good design The centrifugal clutch reliably protects chainsaw systems and components from overloads and breakdowns. Simplicity of power take-off is also important; It is easy to connect any device to the output shaft of the chainsaw, and the autonomy of the chainsaw allows it to be used anywhere.

What can you make from a chainsaw?

Buying a gas cutter attachment will significantly expand the functions of the chainsaw and make life much easier for the home craftsman. The petrol cutter attachment is installed on a chainsaw instead of a bar and chain. Depending on the brand of gas cutter, it can cut metal, concrete, and stone. The end part of the nozzle is made with a groove for attaching it to a chainsaw.

For construction wooden house An attachment for a chainsaw, a corroder, or a debarker, can help you. The landing stage will help to clear a log of bark, branches and growths, select a longitudinal or transverse groove in it, cut cups in logs during the construction of wooden log houses, impart flatness to a rounded surface and many other operations. The attachment consists of a cutter fixed in a drum and driven by a belt. Debarkers are divided into drum and disk. The first ones are used mainly for removing bark from logs (cinders); the disk ones cut out mounting grooves, cups, recesses, etc.

A water pump attachment for a chainsaw will help pump water; such an attachment can be useful for summer residents. The pump attachment for a chainsaw is designed for pumping or pumping out water for watering a plot, pumping water from a cellar, water supply country house. This chainsaw attachment is connected to the engine with a bracket and a belt or placed directly on the shaft. The nozzle is based on a centrifugal pump with a capacity of about 5000 l/hour.

For pulling stuck vehicles, moving trees, lifting and moving building materials When towing boats, you may need a winch attachment for a chainsaw. The pulling force of the winch depends on the power of the chainsaw and can reach 1500-2000 kg, and even more with an additional block. Also, to perform its functions, the winch must be equipped with additional accessories: a pull-out block to increase the traction force and change the trajectory of movement, hooks, anchors, sling belts for securing to a tree trunk, rock, soil or car.

Fishermen can also use a drill attachment on a chainsaw to drill holes in thick ice. The drill attachment is connected to the chainsaw through a special gearbox, which reduces the rotation speed to 150 rpm.

With a special attachment, you can use a chainsaw as a boat motor. from a chainsaw can be used on boats with a transom height of up to 380 mm. A 2:1 gearbox and a three-blade propeller with a diameter of 210 mm are installed, and the boat will be able to reach speeds of up to 20 km/h with a fuel consumption of 1 l/h.

There are also other attachments for chainsaws, for example, designed for longitudinal sawing of logs. Their differences from each other consist in the location of the cut (vertical or horizontal), the diameter of the logs being cut, the accuracy of the cut, and ease of use.

There is also a snow removal attachment for chainsaws, which is used in combination with mass-produced chainsaws for removing snow.

There is also a gas shear attachment or a brush cutter attachment for a chainsaw. Brush cutters are designed specifically for professional work in agriculture and forestry, as well as for other various types work in difficult terrain overgrown with bushes.

Chainsaw manufacturers manufacture and improve not only motor units, but also complete cutting sets, various attachments and tools for chainsaws.

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:

1. To the point of delivery of orders (Moscow, St. Petersburg, Yekaterinburg, Kaluga, Nizhny Novgorod, Orel,Rostov-on-Don, Tver, Tyumen, Chelyabinsk, Yaroslavl).
2. 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).
3. transport company SDEK
4. transport company "Business Lines"
5. EMS Post Russia.
6. every 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.

Express 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.