Chainsaws, as a rule, have a two-stroke or four-stroke engine and two tanks, one of which is filled with fuel, that is, gasoline, and the second one should be filled with oil, which is lubricated with a saw chain. The tank for gasoline by volume may include 0.3-1.0 liters of fuel oil consistency, and the oil tank has a smaller volume of almost 2 times.
It is not recommended to use recycled oil to lubricate the chainsaw chain.
How to use a chainsaw?
A ratio of the volumes of oil and fuel is used, in which the lubricant will be consumed when lubricating the chain at the same time, namely in 30-45 minutes of time, which is worked out, provided that the chainsaw is fully loaded. If a two-stroke motor, it most requires the use of pre-prepared fuel mixture for lubrication of the chain.
Electronic ignition scheme chainsaw.
Specific operation of the saw is determined by seasonality. When a two-stroke motor is in operation, its cycle differs from that of a four-stroke engine of an instrument. The use of a mixture of gasoline and oil to lubricate some of the structural elements of a chainsaw, such as a piston or shaft, is one of the highlights. Otherwise, an attempt to use a tool that works only on one gasoline, and not on oil, will not lead to a positive result, but only to damage the tool.
You can use a domestic tool with the use of gasoline 76 at the same time as oil, the ratio of which to fuel is equal to 1/25, that is, in an amount of 4%. If you use the model saws from foreign manufacturers, you need a brand of gasoline 92 with branded oils.
These chainsaw producers create these oils, while the ratio in the required consistencies is 2.5%, 1:40. Two-stroke engines can be installed on chainsaws of foreign production, but it is necessary to take into account that gasoline requires purified, without the content of impurities.
Electronic ignition circuit for a chainsaw.
The choice of oil per motor is possible, the number of cycles of which can reach 8.5 thousand / min. In chainsaws from foreign manufacturers, cycles are provided that can reach power in the range from 11 to 14 thousand / min. The use of these lubricants reduces the presence of the saw's service life by 7-10%, which boils down to the following: the use of “Zhiguli” oils is suitable for all types of household and special chainsaws.
If the tool is used at a low temperature, then even a correctly made selection of the components of lubricants does not bring the quality of the oil mixed with the fuel to a positive result, that is, crystallization processes and an increase in viscosity occur. With all this, the tool must be adapted to the application, taking into account the maximum warm-up of the engine.
If you follow the recommendations, the chainsaw must be heated before use, especially if the place of storage was a cold room that is not heated. This will prevent a negative result if condensation occurs in the saw mechanism.Back to table of contents
What oil is used in a chainsaw?
Experienced experts recommend using one share of the fuel mixture for two weeks.
The period of use of the chainsaw is determined by the type of lubricant used when working with inventory. Saw with a two-stroke engine and a tank for refueling is used in accordance with the instructions. Often the fuel mixture is made by mixing gasoline and oil, which are combined in a certain ratio. This information should be specified by the manufacturer in the relevant instructions.
If the inventory is of domestic manufacture, gasoline having the mark AI-76, as well as regular motorcycle oil, is usually used. The proportions in which gasoline and oil are taken are 1/25. If used chainsaws of foreign manufacture, the requirements will be at the same different. They are reduced to the use of gasoline with an octane rating of 95 and 92, at the same time using a special oil suitable for these types of fuel.
Mixed oil with fuel in the ratio of 1/40. It is appropriate to use measuring cans that help greatly simplify the process of manufacturing the fuel mixture. The use of tools of foreign production requires appropriate filling with motorcycle oils.
It should be taken into account that it is possible to use certain types of lubricants of foreign production by operating chainsaws, the cycle of which is 8.5 thousand per minute. Mainly used tool with a cycle of oscillations in the range of 11-14 thousand / min. The use of foreign oils in such saws is the reason for the decrease in motor potential by an average of 8%. If the chainsaw is running at full capacity, then lubrication is consumed in half an hour after it is turned on.
Experienced professionals recommend using one lobe of the fuel mixture for two weeks, because otherwise a chemical reaction occurs. Oil can lose all the properties, and gasoline is capable of oxidation. As a result, the parts are clogged, the motor overheats and the CPG is jammed. The type of oil poured into the tool must be carefully controlled.Back to table of contents
What oil in the tank chainsaw fill in correctly?
Scheme two-stroke engine.
When lubricating chain links chainsaws fill composition in a special container. Its application helps to reduce the frictional force that occurs between the tire and chain links. The use of special oils with a viscous consistency to lubricate the chainsaw chain will give positive results and ensure a long service life of the inventory. In the absence of this substance, suitable oil.
Choose a suitable oil that allows high-quality lubrication of the chain, should be depending on the time of year when it will be applied. Thus, in summer, mineral oils are best suited, the lack of which is the crystallization of the structure of a substance at low temperatures. Therefore, in the winter, experts recommend using oils with special additives that are synthetic, which makes them less viscous. This helps to use the saw at low temperature, in other words, down to -40 ° C.
The use of semi-synthetics seems to be a more suitable option when using the saw at a moderate temperature, which fluctuates between -30 - + 25 ° С.
Tank recycled engine oil to lubricate the chainsaw chain is not strongly recommended.
Oil supply for chain lubrication.
Such oils can be strongly oxidized, and this is due to the presence of impurities in them, which can cause damage to the chainsaw. However, sometimes when using saws, they are filled with gear or engine oils, which is acceptable.
Motor oils that are suitable not only for two-stroke engines, but also for four-stroke engines, are made on the basis of base oil and additional substances, that is, additives that may be different. As additives, various solvents can be used to improve the blending of oils and fuels, their pumpability, and a possible spraying method.Back to table of contents
Conditions for the use of oils in chainsaws
Table of test results of synthetic motor oils.
Chainsaws operating at high temperatures can function well with oils equipped with iron additives. Their main property is to provide lubrication at elevated temperature levels.
Important! Skilled craftsmen do not recommend using a tool that works for a long time at idle.
With such a work of the engine running it is not carried out. The use of a chainsaw with a four-stroke engine with oil suitable for it, with its complete combustion, is not associated with special requirements.
The content of solvents in two-stroke oils can be 20%. The result of their use may be negative, since as the temperature rises, the quality of lubrication of the chains decreases. If a chainsaw is equipped with a two-stroke engine, the oil should not be used with the maximum number of additives, as they contribute to the increase in viscosity.Back to table of contents
The choice of oil with a different type of engine for chainsaws
The scheme of the interaction of fuel and air flow carburetor chainsaw.
In order to lubricate the motors of an instrument with a two-stroke engine, a burning fuel solution is used, since oil is not used in the fuel composition. If we take into account the differences between the types of oils used in different engines, for example, four-stroke or two-stroke, then there is a difference in the ways of their consumption.
The high-quality work of the chainsaw with a four-stroke engine is due to the lack of oil in the combustion chamber, therefore different requirements are imposed on different types of engines. For example, two-stroke engines are usually filled with oil, which does not form as a result of burning when burned.
A chainsaw with a four-stroke engine can work for a long time as a result of lubrication with oil, to which there are no special requirements regarding its complete combustion. Additives can be selected, without taking into account the ash content, the level of which should be more than 2%.
If a chainsaw is equipped with a two-stroke engine that works with oils that are suitable for four-stroke engines, ash eventually settles on the walls in the combustion chamber. Ash can remain on the surface of the piston, also abrasive powder is formed, acting on the piston of the saw according to the principle of sandpaper.
Checks the operation of the chain lubrication system.
Parts of the instrumentation design are being erased and its useful life is shortened. The presence of settled soot at the end of the use of oil brings harm to the tool, which can lose the quality of work due to the loss of power of its engine.
If soot is deposited in the exhaust holes, then their cross-sectional area is reduced, which is associated with difficulties during the exit of exhaust gases and power loss. If ash is deposited on the piston of the cylinder, as well as on its head, then detonation and drip ignition occur. All this leads to a decrease in the power of the saw, which reduces its useful life.
For chainsaws produced oil of two types, one of which is suitable to create a fuel mixture. At the same time, gasoline 92 is taken in the ratio of 50 parts of gasoline to 1 part of oil (Super 95), used when operating a two-stroke engine, respectively. Different chainsaw manufacturers produce oil for them under different brands, of which there are enough. So, 5 liters of gasoline is usually mixed with 100 ml of the substance. If you apply one that is not suitable for the model of tool used, this will lead to damage to the saw and rapid wear.
Unsuitable oil poured into the saw can simply settle in the cylinder on its walls, if it entered the combustion chamber, but did not have time to burn. This approach to the use of chainsaws leads to a slow reduction in the life of the tool or its trimmer. If the total life of the chainsaw is 400 hours, this figure can be reduced to 200 hours.
Lubricate the saw chain with special adhesive oil, which must be poured into the saw tank provided for this purpose. After turning on the saw, it is pumped up with a special pump in automatic mode, after which the chain is lubricated.
In the canister for chainsaw, which includes two tanks, you can pour 6 liters of fuel mixture and 2.5 liters of oil. Changing this ratio, pour in 5 liters of the fuel mixture and 3 liters of adhesive oil, the consumption of which will be 1 liter for the fuel mixture of 1.6-2.4 liters.Back to table of contents
Recommendations for the use of special oils for chainsaw chains
Centrifugal clutch chainsaw.
Lubrication of the saw bar with the chain should be done with a special oil; other types of this substance are not suitable for this purpose. If used, the oil pump can fail, as it is equipped with a self-lubricating system for high-quality work. To use waste, including filtered, oil formulations in a chainsaw is to impair the ability of the tool to high revs.
The chain requires appropriate storage, which is associated with immersing it in oil. If the saw tire is worn out, then you should not put a new chain on it. It is important to have a chain in stock, and it is best to purchase several chains at once. The optimal number of chains in stock is 4 pieces, which allows you to work with them in turn, and periodically undermine each of them. This ensures a reduced level of wear of each of the components, that is, tires, chains and drive sprocket.
Professionals recommend not to undermine the chain, but to correct it with the help of special tools to sharpen the chain. A refresh is made every 2 or 3 fillings of the fuel mixture into the saw tank.
One intended work with the tool requires the preparation of a certain amount of the fuel mixture. However, it is strictly forbidden to operate a chainsaw without oil poured into the tank. When refueling the saw, it is necessary to immediately provide for its required amount, which should be used to lubricate the tire with the chain. The main thing is that its composition should be purified, free from impurities, water, sand, debris, etc.
Refueling tanks should be carried out simultaneously, that is, the oil is poured with a mixture of fuel in different tanks. Consider the air temperature. If the temperature is below -20 ° C, then it must be diluted with dehydrated kerosene, taking into account the 4: 1 ratio, that is, 1 part of kerosene is added to the 4 parts. In the presence of adjustment for the supply of oil make it maximum.Back to table of contents
How to dilute the oil in the fuel correctly?
The position of the chainsaw at startup.
Dilute oil in gasoline, observing a certain sequence. Previously it is poured into a canister or other container, after which a suitable gasoline used in a chainsaw is added to the same container. The amount of gasoline should be about half of the required amount of fuel.
Carefully shake the mixture and stir it, add the second part of the prepared fuel. Fill the mixture into the tank of the fuel tank after thoroughly agitating the mixture in the original tank. Pour the mixture gently, trying not to spill it.
It is not recommended to fill fuel to the very top of the tank. Usually leave some free space on top of the tank. A 0.5 l fuel tank provides a power tool of 2 kW, that is 2.7 hp The fuel is consumed in the amount of 1.2 l / h, so the fuel mixture can be enough to work for 30-40 minutes with a maximum degree of load on the tool. The greater the power of the chainsaw, the smaller the volume of its tank for fuel.
It is recommended to lubricate the chainsaw chain only with special oils, the quality of which is guaranteed by the manufacturer of the tool itself. Manufacturers of chainsaws are engaged in the manufacture of special oils with the content of adhesive additives, providing high-quality lubrication of the chain due to the long-term retention of lubricant on it.
It is better not to save on the purchase of oil, acquiring cheaper forms of it, and immediately take the adhesive, so that the saw chains and the tool itself do not fail. So you can reduce the damage, because the cost of the oil pump, chainsaw chains and tires is a much lower amount after their breakdown.
Among other drawbacks of using oil that is not adhesive, it is possible to distinguish its leakage from the tank of an idle tool. Due to the inconsistency of the viscosity of the unsuitable lubricant with the standards in the process of pumping it with a pump, it does not come in the quantity that is necessary, that is, more or less. As a result, the use of oils and fuel in equal amounts will be incorrect.Back to table of contents
How should the oil chain lubrication system work?
The fuel tanks of saws are selected in terms of volume, taking into account a certain ratio, which allows leaving the tank with a small amount of oil at maximum production of fuel. Proper carburetor adjustment determines the amount of fuel consumed for a chainsaw, otherwise, if it is not correct, then the fuel ends very quickly.
With a slow decrease in the amount of oil during saw operation, in the absence of a decrease in it, the lubrication process of the chain is disturbed, and the conductivity of the channels where the lubricant moves, is reduced. It is necessary not only to determine, but also to eliminate all faults. Measure the level of performance of the oil pump can be manually adjusting screw.
It is possible to check the correct operation of the lubrication system by placing a tire, the chain of which rotates, to the illuminated surface. When oil splashes appear on this surface, the system is set up correctly. The amount of oil consumed by the chain itself is provided depending on the specific situation.
Cutting the longest on hard or dry wood should be done with the greatest amount of lubricant, which also applies to sawing thick types of bark. If you want to make a cut, the length of which is small, the presence of wet and soft wood will require the least amount of lubricant.
One of the reasons for the strong heating of the cutting headset with the subsequent generation of smoke may be the lack of a sufficient amount of chain lubrication.
Due to excessive heating, the chain may be pinched in the groove of the tire. The reason for the appearance of smoke may also apply to those cases where the chain is incorrectly sharpened, dull, or it happened when the chain was strongly tensioned. If the end of the tire has a maintenance-free sprocket, then grease does not hit it, that is, lubrication occurs separately with a special hole.
If the chainsaw is well adjusted, it can be easily started. To this end, the saw is installed on level ground, making sure that the tire does not fall to the ground. Be sure to activate the chain brake, its handle should be moved in a certain direction to the end of the tire. The chainsaw should be started by holding the saw with the left hand on the front handle, and the right foot should rest against the rear handle, which should be pressed to the ground.