Chainsaw Stihl ms-660. Technical characteristics and features of use
Content
The Stihl ms-660 chainsaw is produced by the famous brand from Germany “Stil”.
Stihl chainsaws are the most sold saws in the world, this equipment is characterized by high reliability and performance, and the saws are considered the quietest in existence. The history of the development of the Stihl company began in 1921, when Andreas Stihl decided to create his own company, which was engaged in the production of steam boilers and washing machines. The first Shtil chainsaw appeared in 1929, its power was 6 hp. s., and weight - 48 kg. This unit was serviced by two operators. Gradually, chain saws were improved, their weight decreased, their functionality increased, new elements appeared: cutting-scraper teeth on the saw chain, a chain lubrication system, a centrifugal clutch, a diaphragm carburetor, handles with an anti-vibration system and a chain brake.
Shtil brand products are present in the markets of more than 160 countries around the world and are very popular among the population. The company's representative offices are spread over 5 continents, with production sites located in Germany and the USA.
The more popular the equipment, the greater the demand for it, the more often you can find Chinese counterfeits on the market.
In order to promptly recognize a product from China, we recommend watching video reviews that compare two identical models and show the characteristic differences. And, of course, you should pay attention to the price of the chain saw; it is in the range of 41-71 thousand rubles. Those who like to save money run the risk of running into a Chinese counterfeit, which will cost an order of magnitude cheaper.
We invite you to familiarize yourself with the obvious signs of the Chinese origin of the saw. So, the Chinese chainsaw “Calm” ms 660:
- lack of a proprietary instruction manual, different appearance of the instructions;
- covering the body with duller paint;
- different shape of the starter housing;
- The air filter screw of the Chinese is placed in the upper part of the saw, instead of the rear position of the original;
- the covers of the oil and fuel tanks have a simple convex shape, while the original covers are made to fit the screwdriver included with the tool;
- the spark plug does not have the characteristic Stihl inscription;
- The brake lever mount is one-sided.
Fake chainsaw
Why is it so appropriate to counterfeit the Stihl brand? The fact is that the color scheme of the saw and its completely standard dimensions and characteristics make it possible for Chinese “masters” to replace their cheap chainsaws with well-known brands. Very often, the Chinese saw “Shain Saw 5200” could become an inexpensive Stihl MS 660 with simple visual changes.
First of all, the original can be identified by its characteristics, because a heavy saw is really “heavy” and powerful, its weight is 7 kg and its power is 7 hp. If the weight and dimensions can be faked in simple ways, then the power, unfortunately, will be half as much. Therefore, the two versions of Shtil 660 will have different purposes:
- Original - used on sawmills, works with various woods and can be used continuously for several hours;
- Fake - low power and average quality makes it possible to use the saw for domestic purposes, equating it to amateur models.
Due to the low cost of the fake, this is an excellent choice for those who want to work with a chainsaw in domestic conditions; it can easily cope with branches, preparing firewood and other household tasks. If handled correctly, Shtil 660 will serve for a long time without breakdowns. The low price will allow you to use the fake for various purposes; use standard fuel for chainsaws as fuel. But be extremely careful, especially greedy sellers can make a strong markup on a cheap saw, equating it to a real original.
Original China
Also on sale are the Shtil MS 660 models, which are considered original, but are manufactured in China using Chinese spare parts. Residents of the Middle Kingdom have been using this technology for a long time; in some cases, it happens that the Stihl brand assembles its saws in Germany, but from Chinese spare parts. Chinese parts and cheap labor are forcing more and more companies to relocate their production.
Main differences
Chinese chainsaws Shtil 660 are easy to distinguish; to do this, be guided by the following differences:
- The original always provides a complete set of original instructions with all the information, including the manufacturer;
- The fake has a less attractive body color, not so bright and rich;
- The Shtil 660 chainsaw has a starter, or rather its housing, that is significantly different;
- There are differences in the tank caps (for oil and fuel), on the German version the caps are designed to fit a combination screwdriver (included), the copy has convex, ugly caps;
- The original always has a serial number located in the housing area immediately below the muffler.
Any original Stihl chainsaw is confident in its quality, therefore it is sold with a warranty card.
The main disadvantages of the Chinese chainsaw
Unfortunately, low cost plays a role; the saw can work for several months, or it can completely fail in the first days. It all depends on the integrity and hands of the Chinese who make the fakes. But we have highlighted the main disadvantages of the Chinese chainsaw Stihl 660:
- weak unreliable clutch mechanism;
- poor quality return spring on the starter;
- cheap air filter housing, made of cheap plastic; very bad tire, it is recommended to change it immediately after purchase.
Instructions for use
The instructions for the Stihl 660 chainsaw are found mainly in German models; counterfeits can copy this data and indicate it in their manual. It is said above that a fake will not withstand the minimum load on a sawmill, so use the saw carefully and only for household purposes. Fill in good oil in the right proportions, monitor the wear of parts in a timely manner and adjust the carburetor. This will increase the service life of even an inexpensive Chinese fake.
If you decide to get a really high-quality Stihl chainsaw for household purposes, check out the review of the Stihl MS 180 model.
I accidentally came across a cheap chainsaw from a well-known brand, was seduced and bought it right away. It didn’t work long, I only used 5 liters of fuel, after which the chainsaw broke. I don’t see the point in repairing and diagnosing; it’s easier to take a more expensive, but original model.
I bought a copy of the Shtil MC 660 chainsaw on the market, a week later the starter broke down, it was a simple matter - I decided to replace it. Then I changed the tire, it seemed to continue working and cut well, and was a good help for household purposes. After a month of continuous work, I processed the entire plot, cut down trees, and prepared firewood. The centrifugal clutch flew off, I decided not to bother with the search and left the device to gather dust.
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Chainsaw Stihl ms-660
The Stihl ms-660 chainsaw is a professional tool that allows you not only to cut down trees, saw trees, saw boards, but also to cross-cut very large trunks, as well as use the saw to work on mobile sawmills such as “Murki” or “Logosol”. The basic package of the device does not include a saw set. This allows the new chainsaw owner to choose a tire and chain variation to suit himself and his needs.
The Shtil MS-660 chainsaw weighs 7.3 kg. and has the following characteristics: equipped with a high-performance carburetor two-stroke engine of Stihl’s own production, the power of the power plant is 7.1 liters. With. Overheating protection is air, manual starting from an inertia starter, ignition system is contactless. The launch control is carried out with one lever (both cold and hot). A decompressor is built in to make starting easier. If necessary, the inertia chain brake will instantly stop the unit.
The carburetor is a diaphragm carburetor with a built-in compensator, which allows you to level out the power of the power plant and ensure almost complete combustion of the fuel-air mixture, resulting in cleaner exhaust. The structure of the carburetor does not allow the chainsaw operator to independently adjust the engine speed, but it does allow the idle speed to be adjusted, at which the chain should not move. There is a heated carburetor, which is effective during cold weather.
The chain tension is lateral, simplified, with maximum protection for the operator’s hands. To protect the engine from contamination, a reusable air filter is provided. Lubrication of the cutting element at specific points saves up to 50% of lubricants. Anti-vibration protection of the handles takes care of the operator’s health.
According to the instructions, the chainsaw operator can install a tire of either 40-50 cm or 90 cm (maximum length) on the unit. The Oilomatic cutting chain is selected accordingly with ⅜-inch pitches. The cutting body with pobedite tips dulls 4 times less, the quality of the cut is improved.
There are three modifications of the Shtil MS-660 chainsaw:
- Standard modification MS-660.
- Chainsaw Stihl Magnum 660 - engine power increased to 7.61 hp. With.
- Chainsaw “Shtil” MS-660, equipped with a heated handle system.
We invite you to familiarize yourself with the technical characteristics of the standard model of the Stihl MS-660 chainsaw:
Chainsaw Makita Or Shtil What to Choose
Comparison of chainsaw and Husqvarna
Before buying a chainsaw, the question arises: which chainsaw is better than Shtil or Husqvarna?
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It is impossible to answer unequivocally, because everyone chooses the tool that appeals to them. It is for this reason that in this article we will look at the main pros and cons of Stihl and Husqvarna instruments, knowing that it is much easier to make a purchasing decision.
What is the difference between chain saws
Stihl and Husqvarna are without a doubt the leaders in the production and sale of gasoline-powered chainsaws. Due to serious competition, every year each company develops many new technical solutions that make it easier and more convenient to use their tool. For example, Shtil has such technical innovations as:
STIHL M-Tronic system, which makes starting the chainsaw easier thanks to a fully electronic ignition system. The system itself distinguishes a cold start from a hot start. In addition, M-Tronic precisely sets the ignition timing and regulates the amount of fuel mixture when starting the chain saw;
HD2 filter. This filter is made of polyethylene, which has a porosity that is 70 percent less than a conventional filter. It repels oil and is easy to clean, which increases comfort when servicing the chainsaw on which it is installed; compensator
This is a special device in the carburetor that allows you to work with a chainsaw even with a completely dirty air filter, and an important feature is that the saw practically does not lose power; a catalyst burns unburned fuel, which is why the chainsaw exhaust contains less harmful impurities, causing harm to the human body.
If you look at the technical innovations of Huskvarna, you can also highlight several interesting systems:
- Air Injection (centrifugal air purification system), which increases the cleaning interval of the filter element;
- The X-Torq System reduces the amount of harmful emissions, and, as the manufacturer notes, a tool equipped with this system consumes less fuel compared to the equivalent engine volume of a chainsaw;
- AutoTune. This is a system for automatically adjusting the optimal parameters necessary for stable engine operation. The manufacturer does not indicate how the system works.
If you take two equivalent chainsaws from Shtil and Huskvarna, they will only be similar in that they install an internal combustion engine, a bar and a saw chain. But everything, even the typical elements of these chainsaws differ in size, shape and materials from which they are made. And it is worth noting that thanks to the efforts of engineers having the same cylinder volume, Steeple chainsaws have a high maximum power, which will be noticeable when comparing specific chainsaw models.
Pros and cons of peace
Shtil chainsaws are considered one of the most reliable and therefore very popular among professional lumberjacks who are accustomed to working with powerful and reliable chainsaws. But if you look at the sales statistics, then we can conclude that they are very popular. For example, the Steels MS 180 chainsaw, since its appearance on the market, has been ranked first in the ratings of such Internet portals as the Yandex market every year.
The advantages of Shtil 180 include:
- Light weight 3.9 kg;
- Power sufficient to perform work on site and beyond;
- Rehabilitation and availability of the Shtil company
, a large number of well-organized services; - The quality of the materials from which chainsaws are made.
Reviews of the Chinese-assembled Stihl MS 660 professional chainsaw
The Stihl 660 chainsaw collects mostly positive user reviews. Some features of the instrument do not allow it to be classified as universal equipment accessible to everyone. The homeland of the brand is Germany, where the technology was developed and licensed. Subsequently, to reduce the market price of the product, its production was transferred to China. Assembly and testing of products is carried out under the supervision of German specialists. Thanks to this, the supply of defective products to the retail chain is virtually eliminated.
Device
The Stihl MS-660 chainsaw belongs to the class of heavy manual forestry equipment. The purpose of the equipment is felling and cutting trees, preparing firewood and dismantling wooden structures. The unit is distinguished by high power, productivity combined with reliability and ergonomics.
Shtil chainsaw device:
- housing with handles and control devices;
- internal combustion engine;
- air filter;
- muffler;
- bar with saw chain;
- gearbox;
- vibration damper;
- Lubrication system;
- side chain tensioner;
- tanks for fuel and oil;
- chain brake.
Reasons why the chainsaw does not start
The tool must be launched strictly according to the instructions. But if you have completed all of the above steps, and the saw still does not start, this means that there is something wrong with it. There are several reasons why it may not start:
- no spark;
- fuel is not supplied;
- air filter clogged.
So, what should you do to identify the real reason why the tool is not working?
Firstly, it must be said that if the tool does not start, the screws on the carburetor must under no circumstances be turned. And if you are not a professional in this field, then do not even try to adjust anything with your own hands or try to start the instrument.
The steps listed below, necessary for the tool to start working, must be performed in the strictly specified sequence. You need to start performing the next step only when the previous one did not work. The actions are:
- At first, you can try simply not doing anything with the tool for at least 5-10 minutes. There is a possibility that the spark plug was flooded during starting, which sometimes happens. Wait, then try again following the instructions;
- Try removing the tool housing cover, then remove the air filter from there, and try starting the saw without it. If the filter becomes dirty, wash it in soapy water, then dry it or replace it with another one;
- Unscrew the spark plug and check if there is a spark. If it is missing, then you can try installing another one. If a spark does not appear in the end, this indicates that the ignition unit is damaged and the tool needs to be repaired. If there is still a spark, but you still can’t start the chainsaw, proceed to the following steps;
- If there is a spark, but the spark plug is wet, then the chainsaw needs to be turned over. Thanks to this, excess gasoline will pour out of the cylinder, if there was any there. You need to pull the starter without a spark plug about 10-15 times, this will allow you to ventilate the combustion chamber. Fire up the spark plug and then screw it back in. If possible, change it to another one, try starting the tool again;
- If the spark plug is dry, then you need to take a syringe and fill it with one or two cubes of the gasoline mixture, then pour it into the cylinder. Try to operate the tool again. There is a possibility that a small speck has entered the carburetor and is preventing fuel from entering the combustion chamber. Such a speck can be pulled out using the flow that is formed after starting the machine by adding fuel directly to the cylinder itself;
- Unscrew and remove the muffler. But at the same time, try not to damage the gasket between the engine and the muffler. Once again we try to start the chainsaw without an air filter and muffler. When it is not there, you can study the piston from the inside. If there are burrs or burrs on the piston or on the cylinder walls, or if the piston ring is pinched by burrs, then this indicates that the piston is worn out or broken. This often happens if you don’t add enough oil to the fuel mixture. In this case, the only way out is to take the tool to a service center or buy a new one, since replacing the piston will be much more expensive.
The above material discussed how to properly start a chainsaw using the example of one of the Calm models, as well as how to behave if the tool cannot start. If you are new to this business or are faced with a problem, then this information may be useful to you in the future.
STIHL MS-660 chain saw: how to spot a fake
In Russia and other CIS countries, gasoline saws of dubious quality from China are widely used. Moreover, there are counterfeits disguised as well-known brands. Accordingly, the price of a tool that is cheap actually increases several times. How to calculate the original STIHL MS-660 saw? How to distinguish a fake? Here you need to be guided by certain positions, thanks to which it is quite possible to determine whether it is a copy or a real German saw.
Specifications
The Stihl MS-660 professional chainsaw is equipped with a 51 cm long replaceable bar and a spare chain. Parts can be replaced quickly, which makes it possible to work with thick trunks and then cut off branches.
The Chinese chainsaw has the following technical characteristics:
- power - 7.1 hp (5.22 kW);
- engine volume - 91.6 cm³;
- saw chain pitch - 9 mm;
- chain thickness - 1.6 cm;
- number of links in chains - 72, 90, 162;
- fuel consumption - 0.4-0.8 l/h;
- fuel tank capacity - 0.83 l;
- oil tank capacity - 0.36 l;
- tire length - 40, 50, 90 cm;
- weight with full filling - 7.3 kg.
Specifications may vary slightly as manufacturers make changes and modifications to their products.
Model description, power, purpose
The Shtil 660-ms professional chainsaw is a powerful tool for professional tasks in cutting wood of any density. It can work with hard wood and has a saw bar whose length is 50 cm. This saw can be used to cut acacia, yew, birch and other types of wood from which expensive furniture is made. This chain saw can also be used for household purposes.
Chainsaw STIHL 660 MS
The main purpose of the Shtil 660-ms chainsaw is:
- sawing hard wood in sawmills and forestry;
- clearing areas of dry trees and bushes;
- construction of baths, barns, saunas, sheds;
- The chainsaw is suitable for installation in sawmills - according to reviews from those owners who have already used a Stihl chainsaw in similar structures, the chainsaw copes with its functions perfectly;
- cutting down large branches from fruit trees.
Characteristics of the Shtil 660-ms chainsaw, which distinguish it from its analogues:
- 5220 W motor, equivalent to 7.1 hp;
- rational consumption of oil and gasoline;
- easy operation even under high loads;
- the saw can operate outdoors in temperatures down to -30 degrees;
- maximum safety and ergonomics of the tool;
- clear instructions with maintenance recommendations;
- The chain saw is used for cutting logs with a diameter of more than 50 cm; you can cut along the log (longitudinal cut).
Chainsaw STIHL 660 MS
User manual
The Shtil MS-660 chainsaw has a complex structure; handling the equipment requires compliance with a number of rules and safety measures.
The instruction manual is attached to the product and contains the following information:
- general description of the product;
- purpose and capabilities;
- certification, information about the manufacturer and dealer;
- unit device;
- operation of parts and mechanisms;
- preparation for work;
- recommended fuel and oil, refueling procedure;
- running in the product;
- sequence and timing of routine maintenance;
- possible failures, malfunctions and ways to eliminate them;
- storage and preservation conditions;
- warranty obligations.
The document is written in accessible language, with visual illustrations and diagrams to help you understand all the issues that arise.
Carburetor adjustment
The power and efficiency of the engine depends on the correct settings of the carburetor of the Shtil 660 chainsaw. At the factory, the fuel system is pre-calibrated for gasoline with a precise octane number.
Correction is necessary when malfunctions in the operation of the power plant are detected, or when switching to winter or summer operating modes.
Adjustment is carried out in the following ways:
- air purifier cleaning;
- rotation of quantity and quality bolts;
- carburetor flushing;
- purging jets;
- refueling the unit with high-quality fuel.
If the measures taken do not produce a positive result, you must replace the carburetor yourself or take it to a service center. The reason for the drop in power may be wear of the piston group.
Purpose, design and principle of operation of the carburetor.
A carburetor is needed to prepare the air-fuel mixture to power the engine. If the proportions in this mixture are incorrect, the operation of the motor is disrupted. If the proportion is not observed in the direction of increasing the amount of fuel, the mixture is called oversaturated, but if, on the contrary, there is little fuel, it is called lean. Both have a negative effect on engine performance.
In different models of chainsaws, carburetors differ in design, but they are similar in principle of operation. The air flow moves at high speed along the air channel. The damper that blocks the channel allows you to change the speed of the air stream. The fuel is supplied through the atomizer into the channel, where it is mixed with the incoming air, forming an air-fuel mixture. The resulting mixture enters the engine.
The pressure in the float chamber, where the fuel is located before mixing, is almost equal to atmospheric pressure. But a vacuum is created in the air channel, due to which the fuel is drawn into the air flow. The more the damper opens, the faster the air moves, and the amount of fuel also increases - the engine speed increases. This is how you can imagine the principle of operation of a carburetor in a simplified way.
For efficient, smooth operation of the tool, obtaining maximum output and at the same time economical fuel consumption, you need to adjust the carburetor of the chainsaw. Before adjusting, you need to check the fuel and air filters - they must be clean. On most chainsaws, adjustment is carried out by three screws: idle, high speed, low speed. The following signs indicate that the carburetor is correctly adjusted:
- The chain does not move at idle.
- The engine accelerates smoothly and quickly.
- The sound of the running engine is smooth, similar to the sound of a four-stroke engine.
When adjusting the carburetor, you need to treat it with all possible care, because errors in the settings can lead to very serious consequences, including engine malfunction. If you are not 100% confident in your abilities, you need to contact a service center.
What is the price
The Chinese-assembled product, the Stihl MS-660 chainsaw, is highly popular for its reliability, safety and ease of use. Users note the low level of noise and vibration during operation of the unit, long service life and the ability to operate in winter conditions. A significant disadvantage for many professional lumberjacks and land owners is the price of the tool and spare parts for it. Sometimes you have to wait a long time for the necessary parts, which negatively affects the logging process.
A new factory-installed product costs between 70,000-75,000 rubles. The variation in cost is determined by the buyer’s place of residence, the status of the trading organization and the choice of method of delivery of the goods. Used tools in good condition can be purchased cheaper. They offer to buy it for 50,000-65,000 rubles, depending on the condition and degree of wear. Offers indicating a lower price should be rejected. There is a high probability of buying a fake that will not last long.
Design features of the Chinese fake Shtil
Fake chainsaw Stihl MS 660
The Chinese version of Shtil MC 660 is very different from its original brother not only in technical parameters, but also in appearance. You can evaluate the power and reliability of a Shtil chainsaw only by putting it into working condition. If this is not possible, you need to pay attention to several details that literally catch your eye.
In the Chinese version, the starter housing differs from the original. In the German chainsaw, the oil and fuel tank caps are made to fit a combination screwdriver included in the package. In the Chinese version they are convex.
You can distinguish a fake by the air filter cover. It opens with a screw, which in the fake version is located on top. Probably, in this case, the package will not include a proprietary instruction manual.
Other distinctive characteristics of Shtil
It should be noted that you can purchase Stihl 660 in Russia only from official dealers of the company. You cannot find such equipment on the market. At the buyer's request, the official representative is obliged to provide a quality certificate made in gray color.
Each original instrument is equipped with a serial number located in three places:
Chainsaw "Stihl" - original and fake
- on the body under the muffler;
- on the packaging box;
- in the original warranty card.
All three numbers must be identical.
On each link of the original saw chain there is the letter S, which is absent on counterfeit products. But the main distinguishing feature is the price. The cost of the original Shtil chainsaw varies between 43-60 thousand rubles. You can buy a Chinese fake Shtil 660 by paying no more than 10 thousand rubles.
Related video: Chainsaw STIHL MS 660
Owner reviews
Vladimir, 55 years old, Novosibirsk.
Last year I bought 3 Shtil 660 chainsaws for my company. The equipment showed itself well - safe, with a large reserve of power, although it is heavy, it is easy to operate. Only professionals should be given such tools. A novice logger forgot to add oil to the gasoline, causing the engine to seize. Spare parts are expensive and take a long time, which means downtime and additional costs.
If you adhere to all points of the operating rules, the saw produces excellent performance with low fuel consumption. I recommend this technique for carrying out industrial work on a large scale. In skillful hands, it brings good profits.
Vasily, 35 years old, Vologda.
I live outside the city in a private house with a large plot of land. In winter we heat with wood, as there are plenty of dry trees around. The tool, although heavy, is convenient and economical. Easily fells trunks up to 80 cm thick, without even reaching maximum speed. Having installed a 40 cm tire, I cut off the branches, which is quick and convenient. In order not to waste time chopping wood, I immediately cut the logs along the grain.
Recently I helped a relative in construction. For a week, the chainsaw worked almost continuously from morning to evening. First, they dismantled the old buildings, then sawed timber for a new house. The tool performed excellently, not a single breakdown, only the gasket burned out.
Nikolay, 42 years old, Tyumen.
I work in a team of lumberjacks. Last week I received a new Shtil 660 for use. At first there were doubts and concerns - the device is heavy and expensive. But while felling the forest, I realized that this is an excellent, powerful and well-balanced machine. After running in, it easily cut through hardwood trees without stopping, jamming or breaking. Tires are easy and quick to change. It takes several minutes to cut down and clear the branches of 1 trunk. The handles are comfortable and non-slip. There is no fatigue even at the end of a busy shift.
About the manufacturer Stihl
In the early twenties, the stihl company was born, the head of which was the unsurpassed engineer A. Shtil.
In the first years of its activity, the company was exclusively engaged in the production of steam boilers and washing machines. But apparently this was not enough for the manufacturer and chain saws began to appear from his machines. Today, this manufacturer is represented by a huge company, which consists of more than thirty enterprises located throughout the globe. The manufacturer began to produce motorcycles taking into account the fact that these products will serve perfectly for consumers, both for construction work and for gardening and household needs. And the most important thing that I would like to emphasize is that chainsaws of this brand are the best and most popular all over the world.
Chainsaw Shtil 660 is democratic and accessible. As a rule, the price of the Chinese chainsaw Shtil ms 660 ranges from 3100 to 5500 rubles. To see the rating of chainsaws for the dacha, go here.
Chinese version
Chinese Calm 660 is very different from the original in technical characteristics and appearance.
An experienced craftsman will determine at first glance that it is a fake. For those who do not understand gas tools, we recommend immediately paying attention to such details as:
- The starter housing is clearly different from the original;
- The oil and fuel tank caps, in the original saw, are made to fit a combination screwdriver, which should be supplied with the saw. In the Chinese version, the lids are convex and unsightly;
- An air filter cover, the screw of which is located on the top, and not on the back, like the real Shtil 660;
- The original saw always comes with a proprietary instruction manual.
- Although the colors of the fakes imitate the real ones, they are still not so bright and beautiful.
The original Stihl chainsaw always has a serial number. It is located on the body, immediately below the muffler. The number is also duplicated with a small sticker; it is also indicated in the company warranty card.
Upon closer inspection, you will notice that the Chinese version has a smaller volume and, accordingly, power, and the parts are made of poor quality and poorly fitted.
In fact, a counterfeit can be sold under any brand. In order for a Chinese saw to turn from Shtil to Husqvarna, careless manufacturers only need to change the sticker on the starter, and the color of the chainsaw may remain the same.
Now you know how to distinguish a fake, let's figure out what to do if you bought it.
Technical characteristics of the saw
This kind of chainsaw is simply irreplaceable when working with sawing large tree trunks, and is also great for harvesting wood from hard structures.
The STIHL MS 660 is a true professional that embodies sophistication and practicality thanks to its design. Today, millions of consumers use this tool and unanimously speak about its undeniable advantages. So, let’s first get acquainted with exactly what features this “giant” of technology has:
- First of all, I would like to emphasize that this tool is quite strong, powerful and capable of coping with the most difficult loads;
- secondly, an important advantage is that the chainsaw runs on gasoline; it is this feature that allows you to work with it regardless of whether there is a power source nearby;
- This tool is equipped with a unique system, namely anti-vibration. The important thing is that today only a few models can boast of this kind of individuality. In addition, this feature allows you to reduce the degree of hand fatigue during work, since it is no secret that strong vibrations become too heavy during work. Anyone who has experienced similar activities will undoubtedly understand without explanation. Moreover, the stress on your hands in the form of vibrations causes poor blood circulation, and this can negatively affect your health;
- chain inertia brake , which is designed to protect your hands in case there is a strong kickback when pressing the protection (front). This mechanism stops automatically and almost immediately. This feature allows you to maximize your safety while operating the tool;
- Important is the presence of chain tension, namely the side tension, which also serves as your kind of protection from unforeseen situations. There is a screw (tension) on the side of the chain sprocket cover. This feature protects your hands from dangerous elements on the saw, for example, such as a chain that is quite sharp and a stop with a serrated surface. See how to sharpen a chainsaw chain with a grinder here.
- The saw of this model is equipped with a valve (decompression), the main task of which is to remove the unnecessary part of the mixture located directly in the cylinder when you start the engine. This kind of advantage allows you to significantly reduce the effort when pressing the cable (starter), which is directly responsible for starting. In addition, this feature will not only make your work easier, but also reduce wear on the starting system itself;
- The manufacturer has supplemented this model with a fairly practical lubrication system, which in detail can be said to measure the required amount of lubricant on the chain and spikes, literally down to the drop. Compliance with the ratio of gasoline and oil for a chainsaw is very important in order to save money. The correct ratio is the reason that you will consume less oil, well, fifty percent, that’s for sure. Chainsaw chain oil can be purchased at any specialty store.
Now let's talk directly about the technical characteristics of this model. So:
- the tool is equipped with a powerful engine with a total volume of 91.6 cm2;
- instrument power – 5200 W;
- total weight – 7.3 kg;
- the length of the bar on the chainsaw is about 63 cm;
- device chain pitch – from 3 to 8 cm;
- the tool is equipped with two tanks - oil and fuel with volumes of 825 and 350 cm2;
- idle speed – 2500 rpm;
- maximum speed – 13500 rpm;
- vibration level – 7.0 m/s2;
- sound pressure level – 101 dB;
- sound power level – 109 dB.
The cost of the saw corresponds to the manufacturer's stated characteristics.
How to start a saw after a long period of inactivity
I can’t start the chainsaw after a long period of inactivity. Such comments can be found on forums dedicated to the repair and operation of saws. Let's figure out how to start a chainsaw after a long period of inactivity.
The fact is that successful startup after downtime must be taken care of in advance and the saw properly prepared for storage. According to the manufacturer's instructions, before storing it, it is necessary to drain the fuel from the tank, then start the engine and burn out the fuel in the fuel system.
Preparation is necessary to ensure that the carburetor membranes do not stick together during storage. Performing this simple operation will allow you to successfully start the saw after long-term storage.
It is much easier to start a chainsaw six months after being idle if, immediately before starting, through the spark plug hole, add 1 - 2 ml of the fuel mixture to the cylinder. This can be done using a syringe.
Operating and starting instructions for the MS Shtil chainsaw - how to start the device
When putting the device into operation, it is important to remember the following aspects:
- Before you start working with any kind of chainsaw, including our model, you need to take into account certain precautions, which we will talk about in this section. This is actually an important point in the work, since the chainsaw is operated at high speed, unlike an ax or hand saw, and the teeth located directly on the saw are quite sharp.
- Most importantly, before using any tool in practice, read the instructions first , in which you will find detailed information about what and how to do so as not to harm yourself and others. Therefore, if you are currently using a tool, you must turn it off and place it at a safe distance so that it does not disturb anyone. If the saw is new, you definitely need to break it in; see how to break in a new chainsaw here.
- You can give this device for use only to those people who have previously encountered this model or know how to use this type of chainsaw, since you are responsible for unforeseen accidents that threaten other people. Moreover, you can only use a chainsaw at certain times of the day, as it makes loud noise and can disturb people around you. You can agree on these kinds of regulations with the people who live in the area where you work.
- Immediately before work, you should be well rested and not tired in order to be able to fully control both the saw and the surrounding environment. Before you start using this device, you must undergo a medical examination, which will determine whether you are allowed to work with this kind of tool, since there are cases when a person does not have the right to pick up a chainsaw and manipulate it for health reasons.
- It is forbidden to use the saw after you have taken any medications that affect or inhibit the nervous system, as well as after drinking alcohol. In addition, it is very dangerous to operate a saw during rain or snow, as the rate of accidents increases. Activities should only be carried out in calm weather.
- This tool is intended for sawing wood materials only and should not be used for any other purpose.
It is also important that replacement parts must be exclusively from the same manufacturer that manufactured the saw.
This applies in particular to guide bars, cutting tools, accessories or saw chains. Otherwise, you may injure yourself and others, or damage the device itself. The manufacturer of this brand insists that original tools of its brand be used. Since they are specially designed taking into account all the technical characteristics of the saw, and also fully meet all the necessary and important requirements.
- Under no circumstances make any modifications or changes directly to the design of the saw itself , as you are exposing yourself to danger with your own hands. Remember that the company is not responsible for damage caused to you, or accidents with other people and property, if you use, let’s say, “foreign” spare parts, that is, not “native” ones. And finally, remember that strong water pressure can damage chainsaw parts and components. If this happens and the new chainsaw does not start, then contact one of the service centers in your city.
Adjusting the carburetor of a Chinese chainsaw with your own hands
Adjustment is not provided on all carburetors of Chinese chainsaws. Today there are many models of household chainsaws, including European brands, whose carburetors simply do not have adjusting screws. Or there is only one idle speed adjustment screw.
Such carburetors require adjustment only when the chainsaw at idle makes too few emissions (revolutions) and sometimes stalls. Below in the text we will discuss the algorithm for adjusting the idle speed of the carburetor on a Chinese chainsaw.
Required Tools
Adjustment requires a screwdriver that fits the slots of the adjustment screws. On different carburetors they are flat, cross-shaped, with an internal or external hexagon, an asterisk, etc.
Carburetor adjustment algorithm
Before making adjustments, make sure it is necessary. All Chinese carburetors on each chainsaw undergo factory settings, which rarely go wrong. A new carburetor, or in rare cases an old one, may require adjustment.
The cause of deterioration in engine performance with symptoms similar to poor supply of the fuel mixture is, in most cases, the following:
- clogged air filter,
- exhaust windows and muffler clogged with carbon deposits,
- bad fuel.
If this is not the problem, then try adjusting the carburetor.
The engine must be warm. A cold engine and one warmed up to operating temperatures operate differently. Therefore, adjustment in cold conditions will be incorrect.
- Provide access to the adjusting screws. On some chainsaws, it is enough to remove the cover and air cleaner. On others you have to remove part of the body. On the third, the housing has holes for a screwdriver.
- The screws are marked on the carburetor or near the holes - T (or LA) L and H. The T (or LA) screw is designed to adjust the idle speed. Always located away from screws L and H, which are next to each other.
- If the chainsaw stalls when gas is supplied, the engine does not have enough fuel to develop speed. The amount of fuel is adjusted using screw H (main screw). Unscrew it 1/4 turn and give gas. If the engine begins to work better, unscrew it another 1/4 turn. (If worse, then tighten it 1/4 turn in the opposite direction).
- If the engine starts to idle, it means there is a lot of fuel, screw H is screwed back.
- The peak speed is controlled by ear or using a tachometer. The maximum speed for each chainsaw is indicated in the instructions. (10,000 – 12,500 rpm). In practice, 10,000 – 11,000 rpm in the “full throttle” position are normal values.
- By increasing the amount of fuel supplied with screw H, the quality of the fuel mixture is adjusted with screw L. It increases and decreases the amount of air in the mixture. If there is not enough air, the fuel will not burn out; as a result, the engine smokes, does not develop power and consumes excess fuel. Screw L also affects engine operation at low and medium speeds.
- After adjusting screw H, screw L is unscrewed 1/4 turn. If there is smoke in the exhaust and the engine moves from low to medium and high speeds with dips, screw L is unscrewed some more.
- Adjustment of screw L is stopped when the engine runs smoothly, moves smoothly from low to high speeds and does not smoke.
Important How to make a light on a walk-behind tractor with your own hands
The location of the adjusting screws is highlighted with a red square. To access them, a screwdriver is enough. There is no need to disassemble anything.
Idle speed adjustment
Idle speed adjustment sequence:
- The engine is started and warmed up for 5-7 minutes.
- The screw is unscrewed, increasing the speed until the chain begins to rotate.
- Then the screw is screwed back 1/4 turn.
If you have an electronic tachometer, you need to use its readings when making adjustments. Most chainsaws should idle at 2500 rpm.
Nuances that arise in the process
Screw L should not be unscrewed too much relative to screw H. This will lead to the formation of a lean air-fuel mixture (not enough gasoline - too much air). With such a mixture, the piston is dry during operation, gets very hot and can fail.
New carburetors on Chinese chainsaws, sold separately, are adjusted at the factories to a standard number of revolutions or arbitrarily. Therefore, they may require adjustment after installation on the chainsaw.
Adjustment video
The author of the video shows the process of adjusting a classic Chinese chainsaw with a power of 2.8 kW and a working volume of 45 cubic meters. see. The author talks in detail about all the stages of setup, what screws are there, what they are responsible for and how to adjust them correctly. The whole process takes place without removing the carburetor itself from the chainsaw.
To sum it up...
Undoubtedly, every owner will be happy with this kind of purchase, since this technical “giant” will not only help you cope with construction or agricultural concerns, but will also cost you at an affordable price.
Do not doubt that if you choose a chainsaw from this particular manufacturer, you will not regret your choice for a second, since this tool will pay for all its costs over the years of its operation. Today, the price of a stihl 660 chainsaw (China) starts from 3,000 rubles or more. If you are interested in Russian-made chainsaws, go here.
If you have a replacement attachment for your Stihl chainsaw, then you can do anything.
Starting STIHL 180
In order to start the STIHL 180 chainsaw when it is cool, you need to follow the method indicated by the manufacturer in the instructions for the STIHL 180 chainsaw, and specifically:
- Turn on the ignition and set the engine control lever to the lowest position (in this position, the air damper of the STIHL 180 carburetor blocks the access of air from the air filter, and the throttle is completely open, thus enriching the fuel mixture);
- Pull the starter handle a couple of times until the first flash passes (the flash indicates that the fuel mixture has entered the cylinder and the saw is ready to start);
- Set the control lever one position up from completely lowered (in this position the air damper opens, and the throttle remains in the same position as before);
- Pull the starter and start. The saw will start and operate at high speeds, due to the fact that the throttle valve is very open. To set the throttle to idle mode, you need to press the gas trigger and immediately release it, the tool immediately restores the speed.
The standard STIHL MS 180 chainsaw does not have any additional devices installed that can make starting easier.
Below you can see how to start a STIHL 180. The video carefully reflects all the main points, and the creator’s comments allow you to understand the whole process down to the smallest detail.