How to sharpen a Stihl saw chain. How to sharpen a chainsaw chain with your own hands

The saw chain is a metal base with links connected in series, which have teeth characterized by cutting properties. You can improve them if you sharpen the chainsaw chain at home, but you must follow the rules and use a tool specially designed for this. The latter can be homemade or factory-made.

How to tell if a chain is blunt

The long service life of any chainsaw depends on proper care and use, including behind a chain set. The good performance of the latter affects the performance of the device and performance parameters. Untimely sharpening can cause some problems in the operation of the saw itself. Most often it is:

crooked cuts;
heavy loads on the saw, as a result of which the wear of the device parts increases, and hence the decrease in the service life of the entire device;
increased fuel consumption.

If, as a result of the cut, small dust-like chips are formed, and the saw itself goes deep into the cut with great effort, then the target is blunt.

There are other signs of a blunt chain:

the speed of the tool has decreased;
uneven and sharp sawdust is formed;
it is necessary to make great efforts to cut wood;
the chain is stretched or sagging.

How to sharpen a chainsaw

Timely and competent sharpening of chainsaw chains with your own hands will not only extend the time of using the device, but also save time and effort on wood processing. Signs of an acute clinging is the formation of sawdust of the same size and regular geometric shape. To ensure the desired level of sharpness of the teeth, any device for sharpening chainsaw chains, for example, any sharpening tool, will do. These are the file, the grinder and the machine.

File sharpening

This method is valued for the ability to perform work in any, even field, conditions, the simplicity of the procedure and the absence of the need to use an expensive tool. Correctly sharpening the chainsaw chain with a file will help a tool of exceptionally round cross section. To determine the parameters of the file, you need to know the dimensions of the saw itself, in particular, you need to determine the pitch of the teeth. To process the sawing depth limiter of the guide tooth, a flat variation is allowed.

Everyone knows that the saw chain used in chainsaws needs periodic sharpening, but not everyone knows how to do it right. Determining that the saw requires chain sharpening is very simple, for this you need to inspect the sawdust, and if they consist of fine dust, then the tool needs to be sharpened. If it is impossible to sharpen, it is worth replacing it with a new one.

The use of an unsharpened chain can lead to overheating of the engine and the formation of scoring on the cylinder.

We will analyze the main ways with which you can, without problems, sharpen the chain on a chainsaw.

A person who has a chainsaw in his household should know how to sharpen a chainsaw chain with his own hands. There are several ways:

Sharpen using a file (the most common sharpening method, because it allows you to sharpen the tool directly at the sawing site.)
Sharpen using a special machine (this method is used in service centers, but can also be used in personal households)
Sharpen with a grinder. Sharpening in this way requires certain skills. A less common method, because. it is quite difficult to sharpen using angle grinders correctly.

In this video, you can get acquainted with the sharpening process, the most popular methods and tools used for this.

We sharpen with a file

The first thing you need to sharpen the chain, or tweak it a little, is special files.

File

For sharpening and straightening saw chains, two types of files are used. The first is a round file with a diameter corresponding to the diameter of the rounding of the working edge of the saw tooth.

For sharpening saw chains of household tools, round files with a diameter of 4, 4.8 mm are used, due to the fact that they have a small tooth. For professional models, more powerful chains with a large tooth are used, and, accordingly, files with a diameter of 5.2, 5.5 mm are needed.

In order to properly sharpen, it is not enough to sharpen only the cutting edges of the tooth, you also need to adjust the cut depth limiter. If this is not done, the chain will not cut into the material being cut to the required depth, which will significantly reduce the speed of work and, just like in the situation with a blunt chain, it can lead to overheating of the saw engine due to insufficient load on the engine. This work is done with a flat file.

Description of the sharpening process with files

The first thing with which editing the saw chain on the saw begins is the installation of the tool on a flat platform or table. In forest conditions, a large diameter chock is well suited for this. Next, you need to inspect the saw chain for any defects, these can be cracks, completely broken teeth. After inspection, you need to set the brake to working condition, thereby blocking its movement along the tire.

The chain must be taut when sharpening with a file.

It is advisable to place a stand under the tire, as it can be used a log, a piece of a branch of a suitable diameter, or manufacturers of sharpening tools have special clamps to hold the tire during chain sharpening.

The chain is sharpened by moving the file from the inside of the tooth to the outside. In this case, the file should be parallel to the special mark on the chain. This mark is applied by the chain manufacturer to indicate the standard sharpening angle.

The tooth to be sharpened should be located approximately in the middle of the bar, this is necessary for the convenience of work, in the process of sharpening it is necessary to move the chain along the bar, not forgetting to set the brake to the working position each time.

The work of sharpening the chain on a chainsaw must be carried out using gloves made of coarse material, otherwise it is quite easy to injure yourself, because. the working surface of the teeth is very sharp.

Ideally, manufacturers advise that the same number of file strokes be performed for each tooth, but in practice this is not always possible, because. teeth have varying degrees of damage to the working edge.

To facilitate sharpening the saw chain with a file, special holders can be used with angle markings applied to them. Markings are made not only for a standard transverse cut, but also for a longitudinal one.

Toolholders are also handy to use if you don't have enough sharpening experience. Experienced craftsmen do not use holders for sharpening, but can only use special devices that support the file.

Another device designed for sharpening is a manual saw chain straightener. As a sharpening tool, it uses a regular file, which can be replaced independently. The machine is mounted directly on the tire, it also has the ability to adjust the angle of sharpening the tooth and a special stop that holds the tooth being sharpened.

Manual sharpening machine, perfect for beginners. Along with electric models of sharpening machines, manual ones have their own indisputable advantage in the form of a low price. Depending on the manufacturer of the manual machine, their appearance may vary, but the principle of operation is the same for all.

The depth of cut is adjusted using a flat file so that there is a difference between the top cutting edge of the tooth and the height gauge.

As can be seen from the figure, the depth gauge is ground in such a way as to bring the gap to the factory value. Below is a table that shows the main values of angles, as well as gaps for the most common types of chains.

As a rule, the gap is adjusted using a special die. It is installed on the chain during sharpening, after which the depth gauge is ground.

Electric sharpening machines

For editing a large number of chains, as a rule, in service centers or at manufacturing enterprises, electric sharpening machines are used. Depending on the manufacturer, the execution of the machines may vary, but they have the same principle of operation.

The saw chain is installed in a special guide, which is mounted on the basis of a turntable and has a special lock to hold the tooth being sharpened. The latch is able to move in a horizontal plane. At an adjustable angle to the tooth being sharpened, an electric emery is installed, which is turned on by the operator by pressing the start button. The depth of immersion of the emery, as well as the angle at which sharpening is performed, can be adjusted. The dive itself is performed by the operator. The chain is dressed with a special grinding wheel, which can be changed if necessary.

How to sharpen with angle grinders (grinders)

The method of sharpening the saw chain with an angle grinder is the least common due to its insecurity. In order to edit the teeth of the chain using a grinder as a grinding tool, it is necessary to install it in a vise and clamp it securely. Next, the tool is turned on and the sharpened edge of the tooth is substituted for the rotating surface of the disk. A tooth sharpened in this way can differ significantly from a tooth sharpened with a file, because. in the process of editing using a grinder, it is quite difficult to control the angle of sharpening.

A big minus can be considered the possibility of an incision by the disk of the grinder of the lug of the fastening of the connecting link of the chain, which in the future will lead to a rupture during work. If in the process of working with a chainsaw it became necessary to sharpen, it is better to use a special tool than to come up with various tricks that can result not only in financial losses, but also cause serious injuries during their implementation.

Sharpening a chain is not as difficult as it seems at first glance. Any person, after studying the process of straightening chains, is able to sharpen the cutting headset of his tool on his own. Even if for the first time it turns out to do it not quite qualitatively, you should not despair, because. with each next attempt, the result will get better and better.

Proper use and care greatly affect the quality and performance of the tool. For comfortable work, you need to sharpen the chain on time. A blunt chain can be attributed to specialists or sharpened with your own hands, especially since the whole process is not particularly complicated. It is only necessary to acquire a certain skill, since the teeth on it have an unusual shape.

When to sharpen and how to find out about it

Problems that may arise due to untimely chain maintenance:

crooked cuts;
increased fuel consumption;
faster wear of the leading parts of the chainsaw and a reduction in its service life.

How quickly the teeth become dull depends on how often the tool is used and the conditions. It is enough just to hook the ground or stones a couple of times, and you will already need to sharpen the chainsaw chain.

Signs by which you can find out that the chain is blunt:

the tool tries to escape from the hands, gets stuck;
small chips are pouring, almost dust;
the saw deepens only with great effort;
cutting time increases.

In addition, blunt teeth can simply be inspected carefully. Even to the naked eye, signs of blunting will be noticeable.

The earlier the chainsaw chain is sharpened, the less metal is grinded, which means that it can last longer.

How and how to sharpen chain teeth

The saw chain teeth are irregularly shaped. They consist of a base, blade and depth gauge. The blade at the same time has a vertical blade and a horizontal one, falling at an angle. It is thanks to these blades that the chainsaw cuts wood. They work on the principle of a planer, cutting off pieces, and the limiter regulates their thickness (the difference in height between it and the horizontal blade will be the thickness of the chips). You can sharpen the chainsaw chain manually or using a machine.

Sharpening sets

One of the most common ways is with a set of round and flat files, a file holder, a gauge for the stop and a hook used to remove the sawdust. For the correct location of the holder, special markings are applied to it, allowing you to determine the correct angle for sharpening. It is installed on the upper part of the tooth and the limiter, while the round file remains under it and is located just near the blade. Thanks to the file holder, the file is at the correct height, more precisely, it protrudes 1/5 above the blade. To sharpen the cutting tooth, only round files are used, since the contour of the tooth has a rounded shape.

Kits must be purchased according to the chain pitch. Do not use the same sharpening kit for different chains.

Before you start sharpening the chainsaw chain at home, the tire must be fixed in a vise or with a clamp, the main thing is that the saw does not move during processing. Having installed the holder according to the markings, they begin smoothly and without too much pressure, move the file strictly away from you 2-3 times. Similar actions are repeated with all other teeth. The file needs to be turned over from time to time so that there is no one-sided wear. The force of pressure and the number of movements for all should be the same, this is necessary for uniform sharpening of all teeth. If they are different, then cracks may form in the chain, which will lead to its breakdown.

To make it more convenient to work, the teeth are first sharpened on one side, and after them the saw is turned over and the teeth are aligned on the other.

Sharpening begins with the smallest tooth, so that the length of all the others is the same with it. After the work on processing the blades is completed, they move on to the limiters. A template from the kit is installed on top of the chain in such a position that the limiter is in the hole. The protruding part is ground with a flat file.

The video shows an example of how to sharpen a chainsaw chain with a file:

There is another set, which instead of a holder, has one template, both for sharpening the blade and for grinding the limiter. Install it so that the chain falls into the holes. After that, a round file is placed on top of the rollers and brought under the blade. During sharpening, you need to make sure that it is always parallel to the side edges of the template.

There are 2 separate holes for the limiter, labeled Soft, which means for soft wood, and Hard for hard wood. The protruding part of the slot is ground with a flat file.

Sharpening is carried out only from oneself and with smooth movements, the number of the latter should be the same for all teeth.

This system allows you to sharpen the chain in a few seconds without even removing it from the bar. Includes PowerSharp chain, abrasive bar, guide bar and sharpener. In order to sharpen the chain with it, you will need to do the following 3 steps:

install the PowerSharp bar and chain;
fix the timber inside the grinding device, after which it is installed on the tire;
the end of the chainsaw is rested against an object and launched for a couple of seconds.

The video below shows in more detail how to sharpen a chainsaw chain with your own hands using this system:

Manual and electric machines

If the teeth have been heavily worn and the cutting blade has lost its shape, it will take a long time to align them manually. In this case, a manual machine or an electric one with a grinding wheel is usually used. The first type of device has the form of a bow saw with a round file. Machines are stationary and mobile, which can be installed directly on the bus.

To set the necessary parameters, start with the smallest tooth. After all the teeth are sharpened and aligned, the round file is replaced with a flat file to sharpen the stops.

The advantage of electric machines is that the disc is brought directly under the blade being sharpened. In addition, the quality of sharpening in this case is guaranteed and all the teeth will be the same size.

The video below shows an example of sharpening a chainsaw with your own hands using an electric machine.

The blades are always sharpened first, and only then the limiters.

The angle of sharpening can be changed - it depends on the purpose of the appointment. A smaller angle is used for cutting hardwood, and a larger one for softwood. In any case, it should be between 25° and 35°. A 10° angle is used for chains intended for longitudinal cutting.

In order for a tool to do its job effectively, it needs to be properly cared for. You need to be especially careful with different saws, as they can quickly lose their sharpness.

You can return the original cutting properties to the saw tool using sharpening devices such as a file, a small machine, or a special nozzle for a drill. If it comes to a chainsaw chain, then it will not be so easy to sharpen it. This article will be devoted to the features of this process.

What are chainsaw chain teeth?

One of the main characteristics that makes a gasoline saw chain stand out is complex geometric shape. Traditional incisors, as a rule, are made in the form of a triangle or a strongly elongated oval. As for the teeth of the chainsaw, they have a more complex configuration.

Each tooth is formed two incisors which are at right angles to each other. The first incisor looks like a normal tooth. Its main task is to make an incision in the wood.

After that, another cutter is used, which is made in the form of the letter G. It is by no means accidental that it has such a shape, since due to its execution it removes chips from wood and provides a wide kerf to avoid pinching the chain.

Therefore, it depends to a large extent on the chainsaw chain how easy and high-quality the sawing work will be. This is a good reason to consider its design in more detail.

Indeed, in the vast majority of cases, the saw tool begins to cut worse due to the fact that the chain is already in a state where it cannot cope with the task.

Technical parameters of chainsaw chains

It should be noted that the chain pitch directly affects the performance of the saw tool. Therefore, to perform a large amount of work, it is recommended to choose a chain that has the largest teeth.

Using such a tool, the work can be done with less effort and quickly.

Technical characteristics that are important to pay attention to when choosing chains for chainsaws:

step interval;
number of links;
their thickness;
planned type and scope of work.

The smallest step is 1/4. If the chainsaw is equipped with a chain with such a pitch, then it is suitable for performing simple household tasks. She will do an excellent job of cleaning fruit trees, but at the same time she will not be able to cut firewood.

The products of many European and Chinese manufacturers most often have a chain with a pitch of 0.325 and 3/8. A chain with a similar spacing can handle with a wide range of work, including the removal of sufficiently thick trees, reaching a diameter of more than two meters.

Steps 0.404 and 3/4. Chains with such an interval are usually equipped with tools for industrial use. It is advisable to choose a chain with a pitch within this range if a saw tool is needed for frequent sawing of forests, as well as logging thick logs or performing tree cutting work.

As the number of links increases, the process of sawing wood is simplified. Thus, a parameter like the number of links also needs to be taken into account. However, a more important characteristic is their thickness, which can have the following values: 1.1 mm; 1.3mm; 1.5 mm; 1.6 mm.

If the tool is intended for domestic use, then it is recommended to choose a chain whose teeth have a thickness of 1.3 mm. If the buyer is looking for a tool for logging, it is recommended to choose a chain with a tooth size of 1.5 mm.

In cases where the chainsaw in all respects corresponds to the tasks that need to be solved, however, there is a drop in performance, then we can conclude that the reason for this is chain blunting. If the poor performance is related to other problems, then the only correct solution is to buy a new chain.

Sharpening chainsaw chains by hand

Among all the available methods by which you can give the chainsaw teeth their initial sharpness, sharpening with a file is considered the simplest. However, you must first prepare:

Particular attention should be paid chain cleaning from oil residues and other contaminants, which must be carried out most carefully. The need for this operation is due not only to a measure of protection against the transfer of dirt to hands and clothes. A well-cleaned chain will allow you to better see it and the links.

Situations are common when chips can get stuck between the teeth or in them themselves. And this is one of the reasons for the deterioration of the performance of the tool.

Sharpening features

Given that the basis of the tooth is formed by two separate elements, the process of sharpening each of them will be done in different ways. The cutting edge located at the top provides conical one-sided sharpening.

It is important to maintain the optimal sharpening angle, which should be in the range from 15 to 30 degrees. Moreover, it is desirable to withstand the minimum sharpening angle, since this will simplify the entry of the saw into the wood.

It should be taken into account that as the angle decreases, the metal becomes thinner, and this will speed up the process of blunting the steel. When choosing a sharpening angle, it is also necessary take into account the type of wood which is planned to be cut.

To work with hardwoods, such as oak or larch, the sharpening angle must be kept at 30 degrees.
When working with soft woods, such as pine, fir and many types of garden trees, a sharpening angle of 20 degrees is considered optimal.
If the tool will be used to trim not very thick branches of fruit trees, then a sharpening angle of 15 degrees will be sufficient.

The second tooth, which is a guide, is usually provided bilateral sharpening. Here you can not focus on maintaining the angle of inclination of the cutting edge. It must be remembered that it should not be too small or large. It is best to stick to the average value - 30 degrees.

Among the elite models of the tool, there are those that have a chain with teeth, with reinforced blade. You can understand whether a chainsaw has such an amplifier by its appearance.

Usually on the edge of the tooth you can see a fixed special cutting edge, which has a completely different color and texture. Having identified this element, you can refuse to sharpen the tool chain.

This will be correct, given that such amplifiers contain superalloys that cannot be sharpened by hand. If the chain has lost its sharpness, then the only solution is to buy a new one.

The process of sharpening a chainsaw chain with a file

To work on sharpening a chain with a file, you must perform the following steps:

prepare files of suitable sizes (small and large);
place the chain in a vice and fix it in them, the vice can be replaced with a clamp;
start sharpening the upper cutting edge;
the operation itself should be performed in the direction from the body of the tooth to the tip;
start sharpening the guide edge;
the sharpening tool must be moved in the direction from the body to the point, changing sides from time to time.

During the sharpening process maintain a given direction movement of the file, as otherwise it will lead to even more blunting of the chain. Moreover, this rule works regardless of whether a manual or automated device is used for sharpening.

Sharpening chainsaw chains on the machine

Sharpening the chain of a medium-sized tool is quite long and takes at least 6-8 hours. In this regard, it makes sense to use electrical appliances to solve the problem.

If sharpening is performed with a drill, then it will have to be used in combination with the usual “whetstone” nozzle. But care must be taken to ensure that the width of the nozzle matches or slightly exceeds the plane of the tooth blade. Otherwise, the chain will be sharpened unevenly.

In addition, to ensure high-quality sharpening, it is necessary use a grindstone, the surface of which should not have irregularities, as well as any other defects.

The algorithm for preparing for this type of sharpening is as follows:

You need to loosen the screw that adjusts the chain clamp.
Then you need to adjust the chain so that its teeth are directed towards the sharpening element.
At the end, it is necessary to fix the equipment at a certain angle.

If you use a standard stone for sharpening, you will have to bring it to the required size by grinding or use special grinding stones. The latter are smaller in size compared to grinders, made of less durable material and quickly exhaust their working life.

At the same time, due to the lower strength, overheating of the metal is excluded, and this allows the steel to remain as strong. If the work is done with a grinding stone, then need to pause between every 2-3 sharpenings of the tooth - they are necessary to cool the stone.

And for artificial cooling use of water is unacceptable, here an option is possible with a fan or by applying a grinding stone to pieces of ice, previously wrapped in rags.

Considering that the grinding machine has a sufficiently large power, it is desirable that the sharpening operation on it be performed by professionals. If you use an ordinary household grinder, then it is able to restore its former sharpness only to the upper cutting edge.

This limitation is due to the size of the machine. However, if you use the machine only for sharpening half of the teeth, then this work will require half the time.

If you are interested in a grinding and grinding machine, in order to perform a number of other operations in addition to sharpening knives and saws, then it is best to buy compact low power unit, which will be similar in its characteristics to a dentist's drill.

This machine is not only smaller, but also has different functions, as it can be used for carving wood, metal and stone. If necessary, it can be improved so that it can be used to sharpen small parts.

In stores, such units from the budget category are offered starting at $300. In this regard, it makes sense to consider this option only if you need such a machine for regular use.

A special group is formed special sharpening machines chainsaw chains. However, due to the high cost, the purchase of such installations for an ordinary consumer will be impractical.

Each tool has a limited working life, so certain measures must be taken to extend its service life. With regard to chainsaws, this is chain sharpening.

Naturally, not in all cases, this operation will allow the saw tool to return to its previous level of performance. Therefore, before it is necessary to understand the reasons deterioration of work, after which you can proceed to the choice of a sharpening device.

After reading this article, you will understand why and why it is necessary to sharpen the saw chain and learn how to do it correctly. Most detailed illustrated guide.

Any cutting tool, including the chainsaw chain, wears out during operation - the cutting elements become dull, the chain gradually becomes more and more difficult to cut, even if you do not cut on objects that quickly dull it (stones, earth, metal, etc. .P .).

The saw chain is also blunt from sawing wood.

The more blunt the chain, the more effort you will need when working. If your saw chain is sharpened correctly, it will cut into wood like butter with even the slightest push on the chainsaw. If this does not happen and you make significant efforts when sawing wood, then you need to pay attention to the cutting teeth and sharpen the saw chain. One of the important criteria for determining the need to sharpen the saw chain is the condition of the chips formed during the operation of the chainsaw: if instead of large thick saw chips (wood chips), thin chips or wood flour are formed, this testifies about the need to sharpen the saw chain.

Working with a blunt chain affects both the chainsaw operator and the machine itself. Vibration is transmitted to a person, which increases when using a blunt chain, and also suffers. performance sawing, and therefore fuel consumption increases, the tire, the chain itself and the drive mechanism wear out.

The saw chain can be sharpened with various tools: the FG4 sharpener and the electric sharpener (machine). The sharpening process is the same for all types of saw chains.

The main criterion that must be met is to maintain the necessary sharpening angles of the cutting tooth according to the type of saw chain when using the appropriate file diameter.

A - Sharpening angle

STIHL saw chains are sharpened with a sharpening angle of 30 °. Exceptions are saw chains for longitudinal sawing with a sharpening angle of 10
°. Rip saw chains have an "X" in the designation.

B - Front corner

By using the prescribed file holder and file diameter, the correct rake angle is obtained automatically.

The choice of file diameter depends on the chain pitch. The chain pitch designation is engraved in the depth gauge area of each cutting tooth.

When using prescribed files and/or sharpeners, angles A and B are obtained automatically.

If you use your chainsaw during the day, sharpen it with a few strokes of the file each time you refuel, it is easier to sharpen a little but often.

The saw chain is sharpened using the following sharpening tools:

the corresponding diameter.
(the file holder is marked for the angle of sharpening, for best results it is recommended to use a file holder guide) or sharpener FG4.

Saw chain sharpening algorithm.

Fix the position of the bar and chain to free both hands, it is best to use a bench vise or .

Select a sharpening tool according to the pitch of the saw chain.
Block the saw chain - slide the hand guard forward, to further feed the saw chain, pull the hand guard towards the handlebar.
Sharpen often, and only an insignificant layer of metal of the cutting tooth will be removed; for simple regrinding, it is enough to make two or three movements with a file on each cutting tooth.

When sharpening the cutting tooth, the file must be directed horizontally (at right angles to the side surface of the guide bar), according to the specified angles, which are made in the form of marking lines on the file clamping holder. The file holder must be positioned on the back of the cutting tooth and on the cut depth gauge.

Sharpen only outward from yourself, the file removes metal only when moving forward, when moving backward, slightly lift the file above the edge of the cutting tooth.

Do not touch the connecting and driving links.
Turn the file regularly to avoid one-sided wear.
Control sharpening angles.

All cutting teeth should be sharpened to the length of the shortest cutting tooth, after sharpening all cutting teeth should have the same length. If, during the operation of the chainsaw, the saw chain touches a stone or metal, as a result of which the upper cutting edge of one or more cutting teeth is damaged, it is advisable to sharpen (calibrate) the cutting teeth on an electric sharpening device in the workshop in compliance with the required sharpening angles.

Cutting depth limiter.

The cut depth limiter determines the depth of cut into the wood of the cutting tooth and, accordingly, the thickness of the cut wood chips, the thickness of the chips depends on the chain pitch. The cutting tooth works on the principle of a planer.

When the planer is adjusted to the minimum reach of the cutter, it removes a very thin layer of wood. The same happens with the saw chain if the distance between the depth gauge and the tip of the cutting tooth is very small. At the same time, do not remove too much from the cutting depth gauge, otherwise the cutting tooth will cut too deeply into the wood, and strong shaking and vibration will occur when sawing. At the same time, the risk of kickback increases and the chainsaw is subjected to greater loads, which can cause the saw chain to break.

When sharpening the cutting tooth, the distance of the cut depth limiter decreases, because the working length of the blade of the cutting tooth decreases during sharpening and, accordingly, the gap between the cutting depth limiter and the cutting tooth decreases. Chip thickness depends on the chain pitch.

It is recommended to remove the depth gauge after 3-5 sharpenings of the cutting tooth with normal wear. After deep sharpening of a chain that has fallen on a stone or metal, it is also necessary to check the height of the cut depth limiter using.

Checking the cutting depth gauge:

After sharpening all cutting teeth, install on the cutting link. If the cutting depth gauge protrudes above the filing gauge, use to remove the cutting depth gauge up to the filing gauge. Grind all saw chain stops in this way.

Lastly, grind the back of the depth gauge at an angle, parallel to the marked mark, making sure that the highest point of the depth gauge does not move back.