Finishing off your STIHL chain saw and other power tools

The time of the first chainsaws (Ural and Druzhba) in our country is over. Gone are the days of asking questions like “How do you run-in a chainsaw? STIHL machines don’t need a running-in period. Completely! No. Even if you are told to run it in the market, where you buy it.

By the way, if you buy a STIHL tool at the market. it is 99.99999% that you are not buying STIHL, but its Chinese replica. First, this tool is sold only at official points of sale, through the manufacturer’s website and a few sites of certified partners. Secondly, no manager will tell you about the need to do a cold start and running-in of STIHL chain saws. Why? Let’s see below in a little more detail.

How to run-in a STIHL power tool

The chain saw came off the conveyor and was taken to the workshop, where it was assembled, oil and fuel mixture were filled, tested, switched on andand secure it in the special gasoline tool running-in chamber, which is located right there in the factory, next to the conveyor belt. During the planned time it goes through a “hot” running-in period until all the parts and mechanisms fit together. this is the purpose of running in and the best way to run-in a STIHL chain saw. So as soon as you buy it, fill it up with gas and oil. and right away to the fight! Work for 10-15 minutes, then rest for 5 minutes, then 15-30 minutes, then rest again. After 3 to 5 tanks of petrol it will get the maximum power, and it will be possible to work for the specified time according to the technical passport.

Similar to the above described procedure it is not possible to run a STIHL brushcutter or STIHL brush cutter or even a STIHL ride-on lawn trimmer. Yes, other manufacturers may recommend it, but in this case with STIHL it is a waste of time and your resources (effort, fuel, oil).

Filling a STIHL chainsaw with fuel and chain oil

If you want to run-in a STIHL machine (whether with a STIHL rotary cutter or STIHL paver or something else) we would only recommend running it in for the parts you have replaced after a routine replacement or repair. A lawnmower, for example, could be subject to such a change:

How to run in a STIHL mower in this case? Give it a gentle run for approx. 30 to 60 minutes and cut out particularly tough grass stems and debris which generally cause damage.

How to run a STIHL rotary blower?

A blower is also referred to as a garden vacuum cleaner. It is a very handy tool, which can remove light debris and fallen leaves from a garden plot (usually 30-50 square meters) in a few minutes.ΠΌ.). Like all other STIHL power tools, it is precisely run-in at the factory, so you do not need to run it in addition to the standard run-in parameters. Do not put it into action immediately at 100%.

oil to gasoline ratio for the fuel mixture

To make a two-stroke chain saw engine run optimally, it is necessary to mix oil with gasoline in certain proportions. They are usually specified in the instruction manual of the tool, as well as on packages with grease. Let’s take a brief look at what happens if you don’t follow the recommended ratios or break them by mistake (ignorance).

If you add too little oil to the gasoline, its concentration is not enough to effectively lubricate the rubbing parts. The engine will make a ringing sound, heat up excessively, and fail quickly. A lot of oil is also bad, because the excess will not be able to fully burn. This will lead to fouling of the cylinder walls and piston, fouling of the spark plugs, exhaust system. Also the power will drop, fuel consumption will increase, and during operation excessive smokiness of the exhaust will be observed.

To avoid these problems, oil and gasoline should be mixed in manufacturer’s recommended proportions. They are stated in the form of ratios. 1:50, 1:40, 1:25 and so on. Any of these proportions tells you how much oil to pour per volume of fuel. For example, to prepare a mixture in 1:25 proportion you need 1 liter of oil for 25 liters of gasoline.

It is important not to mix up! Quite often the indicated proportions are perceived by users in the opposite way. For example, 1:50 is understood to mean 50 milliliters of oil for 1 liter of gasoline. This is a grave mistake which will lead to a higher concentration of oil in the fuel. In fact, at this ratio, you only need 20 milliliters of oil for 1 liter of oil.

which, stihl, chainsaw

How not to get mixed up in proportions? After all, few people need to prepare 50, or even 25 liters of fuel mixture for a chainsaw. All the more so because you can’t store gasoline mixed with oil for long. Usually prepare as much as will be needed for a day or two. That’s 1 to 5 liters if you take into account the chain saw’s low consumption.

There are three ways to properly dilute gasoline for a chain saw in small volumes:

  • Divide 1000 by the second number in the proportion. For example, you need to prepare a mixture in a ratio of 1:40. You divide 1,000 by 40, you get 25. That’s how many milliliters of oil per liter of gasoline.
  • Solve the proportion like you did at school. To do this, divide the required volume of gasoline in liters by the second digit in the proportion. As a result, we get the necessary volume of oil in liters. Translate liters into milliliters for convenience. Let’s say you need 3 liters of mixture in a 1:50 ratio. Solve: 3/50=0.06 liters. To put milliliters in milliliters, put a comma three digits to the right and you have 60 milliliters.
  • Look at the table. This is the easiest, quickest and most obvious way if the proportions are standard. The other two methods are needed to understand why it is necessary to pour 20 milliliters of oil per liter of gasoline and not 50.

Now briefly about why the proportions differ from manufacturer to manufacturer and there is no single standard. There are at least three reasons for this. First, the different characteristics of oils and gasoline. Secondly, the quality of engine assembly (technology, materials) is also different. Third, the mode of operation of the tool. For example, to run-in chainsaws from some manufacturers it is recommended to add 20% more oil in the mix.

Types and composition

Which oil you choose depends on where and how you use your chain saw. Mineral compositions are suitable for summer and warm seasons. Often when a chainsaw is sold, the question is “what kind of oil to use to lubricate the chain??”. In other cases it is better to use synthetic or semi-synthetic oils. It is important to consider what kind of chainsaw oil to put in the special tank. Gasoline saw Ural is considered a descendant of chain saw, what oil to fill and in the gearbox. In order to lubricate the chain, used machine oil. When necessary lubrication of the chain should not use waste oils, which will lead to clogging of the fuel system, and then to serious damage to the tool.

Chainsaw chain oil must be thoroughly cleaned so that the lubrication can be done competently and accurately. What kind of oil to put in the chainsaw oil tank?-. If you use low-quality compounds, there will be no contact between the elements of the saw and the bar, sparks will appear, and subsequently the moving parts of the saw will wear out.

STIHL Engine Oil Comparison Overview

Branded oils for the same purpose do not differ much in their composition and characteristics, so as a small overview we can compare the characteristics of three engine oils of the popular STIHL brand.

  • STIHL HP motor oil is the cost and performance choice. Their formulation is intended for semi-professional and professional performance saws. The composition does not produce soot or toxic compounds when burned, does not attack gaskets and is very resistant to high and extreme loads.
  • STIHL HP Super. the classic low-ash semi-synthetic that meets the needs of demanding users.
  • STIHL HP Ultra is a pure synthetic oil that can be considered an all-purpose oil due to its excellent thermal and loading resistance. Excellent material for powerful internal combustion engines in professional chainsaws.

Why do you have to dilute the lubricant?

The first thing to do is to understand the reason for fuel dilution. The mixture used for a chainsaw is diluted first and foremost to prolong its owner’s life. The instructions for it strictly forbids the operation without dilution of gasoline.

The basis of the chainsaw motor is a piston internal combustion engine. It consists only of a cylinder, so it has no additional systems for lubricating parts. Mixture enters, deposits, lubricates piston rings and walls. In tools such as chainsaws, oil with gasoline acts as a one-of-a-kind lubricant. The mixture extends the operating life of all parts.

Also contains additives that are good for engine performance. It also has antioxidant, preservative and other properties, which are also beneficial to the engine and its parts.

Why it is important to use chainsaw chain oil?

Each saw has a specific set of nodes that are subjected to increased loads. That is why it is important for operators to use a special chain oil for chainsaw chain, which will partially compensate the load on the tool and the equipment itself.

Every sixth operator, who decided to buy the first chain saw asks himself a question, but why a special consumable for the lubrication of the saw, if you can not spend a penny and fill the usual waste? The answer to this question will reveal the employees of the profile trading platform in Ukraine.

Chainsaw chain is directly interconnected with the piston group. Therefore, insufficient lubrication of the chainsaw headset will lead to rapid engine wear. In addition, insufficient lubrication can lead to a saw segment rupture, and it will be necessary to buy a chain for a chainsaw new, and this is an unnecessary expense.

In order not to become a hostage of unpleasant situations, we recommend visiting the profile online store Benzo-Zip (Dnieper), where you can order high-quality oil for chain lubrication, the price of which is available to every operator.

Why it is important to use chainsaw chain oil?

Each saw has a certain set of nodes that are subjected to increased loads. That is why it is important for operators to use a special chain oil for chainsaw chain, which will partially compensate the load on the tool and the equipment itself.

Every sixth operator who has decided to buy the first chain saw asks himself a question, but why a special lubricant for saw chain lubrication, if you can not spend a penny and fill in the normal waste? Employees of specialized trading platform in Ukraine will reveal the answer to this question.

The chainsaw chain is directly connected with the piston group. That is why not enough lubricant for the chainsaw headset will lead to fast engine wear. In addition, not enough lubricant can cause the saw chain to break, and you have to buy a new chain for the chainsaw, which is an unnecessary expense.

In order not to become a hostage of unpleasant situations, we recommend visiting the profile online store Benzo-Zip (Dnepr), where you can order high-quality oil for chain lubrication, the price of which is available to every operator.

Cooking the fuel mix: proportion of oil and gasoline for the chainsaw

The chainsaw engine is the “heart” of the tool, that’s why it’s very important to use the right fuel mix.

Gasoline mixture for chainsaws is made of two components. oil and gasoline. Gasoline chainsaws are equipped with a two-stroke engine, so oil is not added to the lubrication system (as in a four-stroke engine), but directly to the gasoline. In doing so it is very important to observe the correct proportions of ingredients and, of course, in no case try to work on pure gasoline, because that way you will very quickly “kill” the chain saw.

The oil must be intended for two-stroke engines of gardening and forestry machinery (i.e. you may by no means use the oil for outboard motors or scooters). As practice shows, such oil can be purchased at any store or service center, where chainsaws are sold or serviced.

If we talk about what gasoline to fill a chainsaw, it would be optimal to use fuel with the octane number of A-95, in this case, the savings on fuel can turn out badly. Often European manufacturers indicate that you can use gasoline A-90 or A-92, but in post-Soviet countries, the quality of gasoline inferior to European, so in our reality it is better to use a high-quality gasoline.

As for the proportion of gasoline-oil mixture itself, everything is simple: you need to clearly follow the instructions of the tool. All chainsaw manufacturers indicate the required ratio in the instruction manual or in the tool passport, in addition, the proportions for filling the chainsaw may differ depending on the model of chain saw. As a rule, the ratio of oil and gasoline in chain saws of famous manufacturers is 1:40 or 1:50, which means one part of oil to, for instance, 40 parts of gasoline.

Now the arithmetic: 1 liter of gasoline = 1000 ml of gasoline, divide by 40 and you get 25 ml of oil. If you perform the same actions to the ratio of 1:50, you get 20 ml of oil per 1 liter of gasoline.

As for budget Chinese-made chain saws, the situation is slightly different. Gasoline to oil ratio for chain saw made in China 1:25, that is 1000 ml of gasoline divided by 25, you get 40 ml of oil. The thing is that in branded chainsaws good assembly and distance between the pistons and cylinders in the engine is much smaller than in Chinese chainsaws, so the required amount of oil differs by almost two times.

To measure out the right portion of oil use ordinary medical syringe of sufficient volume.

One more thing to think about. When filling a dry gasoline canister, pour the gasoline first, then the oil. The procedure on the contrary is fraught with a fuel mixture of poor quality, because the oil is denser, will stick to the bottom of the canister. That’s why good blending is out of the question.

Be sure to prepare the fuel mixture in a canister and fill the fuel tank with ready-to-use special fuel! Never prepare and mix it directly in the chain saw’s fuel tank!

which, stihl, chainsaw

If the question of how to dilute gasoline for a chainsaw is solved, then and on conditions of storage and shelf life of the fuel mixture it is worth saying a few words. It is better and easier to prepare petrol-oil mixture by 1 liter of petrol, it is recommended to do it just before the work with the tool. The fuel tanks of chainsaws have a capacity of 0.3 to 1 liter. In terms of domestic use the entire volume of the fuel mixture is seldom used in one session, so the remainder can be saved until the next session. It is necessary to store the fuel mix in a special canister for gasoline, in a dry dark place. It is optimal to calculate that shelf life of the ready mixture is 7-10 days

The fact that the oil presented now on the market is not synthetic, but organic, that is natural. After 10 days all lubricating properties are lost, gasoline simply “eats up” the oil. Naturally, you can no longer use such fuel, it can cause a breakdown and failure of the chainsaw.

At the end of the work it is necessary to drain the fuel mixture and start the chainsaw. the tool will stall (so that the saw has a dry carburetor) and now you can leave it until the next session of operation.

| Denial of responsibility | Contacts |RSS