What Oil Does It Need To Be Filled With A Chainsaw To Lubricate A Chain?
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 should be filled with oil, which lubricates the saw chain. The gas tank in volume may include 0.3-1.0 l of the consistency of fuel with oil, and the oil tank has a smaller volume of almost 2 times.
Using recycled oil to lubricate the chainsaw chain is not recommended.
How to use a chainsaw?
A ratio of oil and fuel volumes is used in which the lubricant will be consumed when the chain is lubricated at the same time, namely after 30-45 minutes of the time that has been worked out, provided that the chainsaw is fully loaded. If the engine is two-stroke, then it most requires the use of a pre-prepared fuel mixture to lubricate the chain.
Circuit electronic ignition chainsaws.
The specific operation of the saw is determined by seasonality. When a two-stroke engine operates, its cycle differs from the cycle of a four-stroke engine of a tool. The use of a mixture of gasoline and oil for the lubrication of some structural elements of a chainsaw, such as a piston or shaft, is one of the main points. Otherwise, an attempt to use a tool that runs on only 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 grade 76 gasoline simultaneously with oil, the ratio of which with the fuel is taken to be 1/25, that is, in an amount of 4%. If you use a saw model from foreign manufacturers, you need a brand of gasoline 92 with branded oils.
These oils are created by manufacturers of chainsaws, while the ratio in the required consistencies is 2.5%, 1:40. Two-stroke engines can be installed on chainsaws of foreign manufacture, but it must be borne in mind that gasoline needs to be refined, without any impurities.
Electronic chainsaw ignition circuit.
The choice of oil per engine is possible, the number of cycles of which can reach 8.5 thousand / min. In chainsaws from foreign manufacturers, cycles are provided that can achieve power in the range from 11 to 14 thousand / min. The use of these lubricants reduces the presence of motor resources of the saw by 7-10%, which boils down to the following: for all types of household and special chainsaws, the use of “Zhiguli” oils is suitable.
If the tool is used at a low temperature, even a correctly made selection of the constituent lubricants does not bring the quality of the oil mixed with the fuel to a positive result, that is, crystallization processes and viscosity increase occur. With all this, the tool should be adapted to the application taking into account the maximum warming up of the engine.
If you follow the recommendations, then the chainsaw must be warmed up before use, especially if the place of its storage was a cold room that is not heated. This will prevent a negative result if condensation occurs in the saw mechanism.
How to remove a cartridge from a screwdriver.
What oil is used in a chainsaw?
Experienced experts recommend using one fraction of the fuel mixture for two weeks.
The life of a chainsaw is determined by the type of lubricant used when working with inventory. A two-stroke engine saw and fuel tank are 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 must be indicated by the manufacturer in the relevant instructions.
If the inventory is of domestic manufacture, then gasoline bearing the AI-76 brand, as well as ordinary motorcycle oil, is usually used. The proportions in which gasoline and oil are taken are 1/25. If chainsaws of foreign manufacture are used, then the requirements will be different. They are reduced to the use of gasoline with an octane rating of 95 and 92, while a special oil is used that is suitable for these grades of fuel.
Mixes oil with fuel in a ratio of 1/40. Suitable is the use of volumetric cans that help greatly simplify the process of manufacturing the fuel mixture. The use of foreign-made tools requires appropriate refueling with motorcycle oils.
It should be taken into account that certain types of foreign-made lubricants can be used by working with chainsaws, the cycle of which is 8.5 thousand per minute. Mostly used tool with a vibration cycle in the range of 11-14 thousand / min. The use of foreign oils in such saws is the reason for the decrease in motor resources by an average of 8%. If the chainsaw operates at full power, then the lubricant is consumed half an hour after it is turned on.
Experienced professionals recommend using one share of the fuel mixture for two weeks, because otherwise a chemical reaction occurs. At the same time, oil can lose all its properties, and gasoline is capable of oxidation. As a result, clogging of parts, overheating of the motor and jamming of the CPG occurs. The type of oil poured into the tool must be carefully monitored.
What kind of oil is correct to fill in the chainsaw tank?
The scheme of a two-stroke engine.
When lubricating chain links, chainsaws are poured into a special container. Its use helps to reduce the frictional force that arises between the tire and chain links. The use of special oils with a viscous consistency to lubricate the chain of the chainsaw will give positive results, ensure a long service life of the inventory. In the absence of this substance, oil is suitable.
Choosing a suitable oil that allows you to lubricate the chain with quality, should be depending on the time of year when it will be used. So, in the summer, mineral oils are best suited, the disadvantage of which is the crystallization of the structure of the substance at low temperatures. Therefore, in winter, experts recommend the use of oils with special additives that are synthetic, which makes them less viscous. This helps to use the saw at low temperatures, in other words up to 40 ° C.
The use of semisynthetics seems to be a more suitable option when using the saw at a moderate temperature, fluctuating in the interval. 30. 25 ° C.
Pouring processed engine oil into the tank to lubricate the chainsaw chain is not recommended categorically.
Oil supply for chain lubrication.
Such oils can be highly oxidized, and this is due to the presence of impurities in them, which can cause damage to the chainsaw. However, sometimes during operation of the saws, gear or motor oils are poured into them, which is acceptable.
Motor oils suitable not only for two-stroke, but also for four-stroke engines are made on the basis of base oil and additional substances, that is, additives, which can be different. As solvents, various solvents can be used to improve the process of mixing oils and fuels, their pumpability, and a possible spraying method.
Conditions for using oils in chainsaws
Synthetic motor oil test results table.
Chainsaws operating at high temperatures can function efficiently due to oils equipped with iron additives. Their main property is to provide lubrication at elevated temperatures.
Important! Experienced craftsmen do not recommend using a tool that has been idling for a long time.
With this operation of the motor, it is not run-in. 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.
Solvent content in push-pull oils can be up to 20%. The result of their use can be negative, since with increasing temperature the quality of the chain lubricant decreases. If the chainsaw is equipped with a two-stroke engine, the oil should not be used with the maximum number of additives, since they contribute to an increase in the degree of viscosity.
Choice of oil with different engine types for chainsaws
Scheme of the interaction of fuel and air flow carburetor chainsaw.
In order to lubricate the motors of a tool with a two-stroke engine, a combustible 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 various engines, for example four-stroke or two-stroke, there is a difference in the methods of their consumption.
High-quality operation of a chainsaw with a four-stroke engine is due to the lack of oil in the combustion chamber, therefore different types of engines have different requirements. For example, two-stroke engines are usually filled with oil, during the combustion of which carbon deposits do not occur as a result.
A four-stroke chainsaw can work for a long time as a result of oil lubrication, which does not have special requirements for its complete combustion. Additives can be selected without taking into account the ash content, the level of which should be more than 2%.
If the chainsaw is equipped with a two-stroke engine, which operates at the expense of oils suitable for four-stroke engines, as a result, ash settles on the walls in the combustion chamber. The ash may remain on the surface of the piston, and an abrasive powder also forms which acts on the piston of the saw according to the principle of sandpaper.
Checks the operation of the chain lubrication system.
Erasing parts of the design of the toolkit is being carried out and its application time is reduced. The presence of settled soot at the end of the use of oil causes harm to the instrument, which is capable of losing the quality of work due to loss of power by its motor.
If soot is deposited in the exhaust openings, then their cross-sectional area decreases, which is associated with difficulties during the exhaust gas exit and power loss. If ash is deposited on the piston of the cylinder, as well as on its head, detonation and drip ignition occur. All this leads to a decrease in saw power, which reduces its useful life.
Two types of oil are made for chainsaws, one of which is suitable to create a fuel mixture. At the same time, brand 92 gasoline is taken in a ratio of 50 parts of gasoline to 1 part of oil (Super 95), used when operating a two-stroke engine, respectively. Different manufacturers of chainsaws produce oil for them under different brands, of which there are a sufficient number. So, 5 liters of gasoline are usually mixed with 100 ml of the substance. If you apply one that is not suitable for the model of the tool used, this will lead to damage to the saw and soon wear.
Unsuitable oil, poured into the saw, can simply settle in the cylinder on its walls if it enters the combustion chamber, but does 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 working life of the chainsaw is 400 hours, then this figure can drop to 200 hours.
Lubricate the saw chain with a special adhesive oil, which must be poured into the saw tank provided for this purpose. After turning on the saw, it is pumped up by a special pump in automatic mode, after which the chain is lubricated.
In a can for a chainsaw, which includes two containers, you can pour 6 liters of fuel mixture and 2.5 liters of oil. By changing this ratio, pour 5 liters of the fuel mixture and 3 liters of adhesive oil, the consumption of which will be 1 liter per fuel mixture with a volume of 1.6-2.4 liters.
Recommendations on the use of special oils for chainsaw chains
Centrifugal clutch chainsaw.
Lubricating the saw bar with a chain should be done with special oil; other types of this substance are not suitable for this purpose. If they are used, the oil pump may fail, as it is equipped with a self-lubricating system for high-quality operation. To use the used, including filtered, oil compositions in a chainsaw means violating the ability of the tool to high revolutions.
The chain requires appropriate storage, which is associated with immersion in oil. If the saw bar is worn, then do 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 grind each of them. This ensures a reduced level of wear on each component, i.E. The tire, chain and drive sprocket.
Professionals recommend not tweaking the chain, but tweaking it using special tools to sharpen the chain. Correction is done every 2 or 3 fillings of the fuel mixture into the saw tank.
One proposed 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 with fuel, it is necessary to immediately provide for its required amount, with which the tire with the chain should be lubricated. The main thing is that its composition is cleaned, without the content of impurities, water, sand, garbage, etc.
Refueling of tanks should be carried out simultaneously, that is, oil is poured together with the fuel mixture into different tanks. Air temperature should be considered. If the temperature is lower than 20 ° C, then it must be diluted with dehydrated kerosene, taking into account a ratio of 4: 1, that is, 1 part of kerosene is added to 4 parts. If there is an adjustment for oil supply, it is maximized.
How to dilute the oil in the fuel correctly?
Chainsaw position at startup.
Dilute oil in gasoline, following a certain sequence. Previously, it is poured into a canister or other container, after which an appropriate gasoline used in one or another chainsaw is added to the same container. The volume of gasoline should be about half of the required amount of fuel.
Shaking the mixture thoroughly and stirring it, add the second part of the prepared fuel there. Pour the mixture into the fuel tank after thoroughly shaking the mixture in the original tank. Pour the mixture carefully, trying not to spill it.
It is not recommended to fill the fuel to the very top of the tank. Usually leave a little free space on top in the tank. A 0.5 L fuel tank provides a tool power of 2 kW, i.E. 2.7 hp. Fuel is consumed in an amount of 1.2 l / h, so the fuel mixture can last for 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 fuel tank.
Lubricating the chainsaw chain is recommended only with special oils, the quality of which is guaranteed by the manufacturer of the tool itself. Chainsaw manufacturers are engaged in the manufacture of special oils containing adhesive additives that provide high-quality lubrication of the chain due to the long-term retention of the lubricating composition on it.
It’s better not to save on the purchase of oil, acquiring its cheaper types, and immediately take the adhesive so that the saw chains and the tool itself do not fail. This way you can reduce the damage caused, since the cost of the oil pump, chainsaw chains and tires is a much smaller amount after they break.
Among the other disadvantages of using oil that is not adhesive is the leakage from the tank of a non-working tool. Due to the mismatch of the viscosity of an improper lubricant with the standards during pumping, it does not arrive in the quantity that is necessary, that is, more or less. As a result, the use of oils and fuels in equal amounts will be wrong.
How should the chain lubrication system work?
The fuel tanks of the saws are selected according to the volume, taking into account a certain ratio, which allows leaving a tank with a small amount of oil at maximum fuel output. Correct carburetor adjustment determines the amount of fuel used for a chainsaw, otherwise if it is not correct, then the fuel runs out very quickly.
With a slow reduction in the amount of oil during the operation of the saw, in the absence of its reduction, the chain lubrication process is impaired, and the conductivity of the channels where the movement of the lubricant occurs is reduced. It is necessary not only to identify, but also to eliminate all malfunctions. You can measure the performance of the oil pump with the adjusting screw manually.
The correct operation of the lubrication system can be checked by holding the tire, the chain of which rotates, to the illuminated surface. When oil spray appears on this surface, the system is configured correctly. The amount of oil consumed by the chain itself is provided depending on the specific situation.
It is necessary to make the cut of the greatest length according to the hard or dry appearance of the wood with the greatest amount of lubricant, which also applies to the cutting of thick types of bark. If you want to make a cut, the length of which is small, then the presence of wet and soft wood will require the least amount of lubricant.
One of the reasons for the cutting headset to become very hot with subsequent smoke may be the lack of sufficient chain lubrication.
Due to excessive heat, the chain may be pinched in the groove of the tire. The reason for the appearance of smoke can also relate to those cases when the chain is improperly sharpened, dull, or if this happened with a strong chain tension. If the end of the tire has an unattended sprocket, then lubrication does not occur on it, that is, lubrication occurs separately in the presence of a special hole.
If the chainsaw is well adjusted, it can be easily started. For this purpose, 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 by the front handle, and the right foot should rest against the rear handle, which should be pressed to the ground.