Fitting the tire on STIHL and Husqvarna
Chainsaw models from the STIHL manufacturer may differ during the assembly process. Step by step guide:
- Open wing nut, remove chain sprocket cover. Turn it on the tire all the way to the right.
- Place the chain on the bar, starting from the top, the cutting tooth on the top side must point straight ahead.
- Attach the assembled tire to the chainsaw, pull the structure over the sprocket. Slide the guide onto the shoulder bolt. Close the cover by placing the pins in the holes provided by the manufacturer.
- Turn wing nut until sprocket cover contacts motor housing.
- Turn the clamping bolt forward, the drive links should fit into the grooves in the bar. Tighten the wing nut completely.
At the end of work, check the tension, if the headset does not move well, adjust the tension with a nut. Engage the chain brake before starting.
The Husqvarna saw chain installation algorithm is almost identical. The main difference is that in most models, the tension and adjustment of the position of the headset to the body is controlled not by one, but by two wing nuts. A separate adjusting lever is rarely found on the outer sprocket guard, so the tension should be adjusted using bolts only.
Important! Before starting to work with the chainsaw, you should carefully study the owner’s manual. It describes in detail all the stages of setting up and assembling the instrument.
How to properly put a chain on a chainsaw?
In most models of chainsaws, the chain is easy to put on the tire by unscrewing the main screw, then the links must be placed on the drive sprocket. Before starting work, the general condition of all cutting surfaces and the guide groove and setting wheel should be inspected. Often, dirt and small chips accumulate in it, which will subsequently lead to planned repairs, deterioration of sliding. Step-by-step algorithm of work:
- Loosen the screws securing the sprocket protection cover, usually it is tightened with a wing nut.
- Turn the tensioning sprocket to the right until it stops.
- Place links on the headset starting at the top. Drink so that they fall into the corresponding grooves.
- Fasten back the chain sprocket mount, tighten the nut. The guides must fall into a special chute.
- Release the chain brake, pull the chain along the mowing line to check the tension. Tighten the tensioner lever if necessary.
Figure 4. Installing the chain on the chainsaw
The setting wheel should turn freely after installing the chainsaw chain. At the end of the work, it is imperative to lubricate all moving parts of the tool to avoid rapid wear.
Important! The headset should only be installed with heavy protective gloves. This will protect you from injury and cuts from the sharp edges of the cutting edge of the teeth.
The chain of the chainsaw together with the guide bar is subjected to the greatest stress during operation, unlike other parts of the chainsaw. Over time, it lengthens in size due to boring gaps in the connecting links. This process occurs with absolutely any type of chain, therefore, when using a chainsaw, it is necessary to periodically monitor the correct tension of the chain and its wear.
- the length of her life;
- safety of felling or timber breaking;
- internal combustion engine resource.
If the chain is overtightened, the efficiency of the sawing work decreases, and the motor and transmission are subjected to increased loads. The guide bar heats up a lot due to increased friction, the operating mode of the chainsaw goes into excessive consumption of the fuel mixture.
Why does the chain come off
Many, even the most experienced users of chainsaws, have faced in their life a situation where the chain jumped off the guide bar during operation. The most common cause is insufficient chain tension or wear.
In 80% of cases, the stretched chain links slip from the teeth of the drive sprocket, and it flies out from the guide under the action of centrifugal force. Although sometimes the problem appears due to the incorrect position of the sprocket relative to the axis of rotation or a loose saw bar on the chainsaw.
What to do if the chain sags
If the chain slack, there is a risk of injury to the operator. the saw blade could break or simply fly off the guide sprockets. Of course, modern chainsaws have safety and emergency stop systems, but these systems do not always work correctly.
It is important not to install a chain with defective or damaged saw links on the chainsaw, in addition to the danger of breaking at any time, such a chain will sharpen the guide grooves of the bar, which will lead to its distortion, uneven cut and failure of the guide bar.
Because of what the chain can sag during even short periods of operation?
- There may be problems with the guide bar. Sometimes, due to an oversight of the operator or due to severe wear of the threads of the fixing bolts at the point where the guide bar is attached, vibration may occur, which causes the chain to loosen. It is necessary to check the condition of the fixing bolts and, if necessary, replace them with new ones. When the bolts are sufficiently tightened, this problem does not arise.
- With enough careful handling of the chainsaw, over time, any chain can wear out. Trying to repair it or collect one from several is a useless exercise. If the chain headset has stretched due to natural causes, then it is best to get a new one.
- The asterisk is skewed. Sagging can occur due to the misalignment of the sprocket teeth. In this case, it would be best to contact a service center to repair and adjust the position of the guide sprocket. It is quite difficult to fix the drive sprocket in the correct position, because you will have to dismantle many small parts, remove the guide rail, and then reassemble everything in the reverse order.
Why did the chain fly off?
There are several reasons why the chain can fly off during operation. This may be due to improper tire operation or insufficient tire tension. The problem sometimes appears even with an insufficiently secured drive and driven sprocket. Determining the cause allows you to accurately select the required repair, tools.
How should the chain stand on a chainsaw
The chain is an important element in the construction of a chainsaw. It is she who has the greatest load during work, so high-quality and systemic care is required. When using any model, it is important to know how to put on the chain correctly, to monitor its tension. If it is not secured correctly, there is a risk of stretching and coming out of the grooves. Reduced saw performance and increased risk of injury at high power.
How to sharpen a chainsaw chain with your own hands
The chainsaw, although it is intended for cutting wood, but in the process of work, the chain still becomes blunt and requires sharpening. As part of the article, we will tell you how to determine when to sharpen and how to do it yourself, as well as analyze all possible methods (from a file to an angle grinder) and which ones are better to use.
How to sharpen a chain on a chainsaw with your own hands
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:
HOW TO PUT ON A CHAIN SAW CHAIN THE RIGHT WAY
- Sharpening with a file (the most common method of sharpening, because it allows you to sharpen the tool directly at the cutting site.)
- Sharpen using a special machine (this method is used in service centers, but can also be used on a personal farm)
- Sharpen with an angle grinder. For sharpening in this way, certain skills are required. Uncommon method, because it is quite difficult to sharpen with an angle grinder correctly.
Sharpening with a file
The first thing you need to sharpen the chain, or tweak it a little, are special files.
For straightening a large number of chains, as a rule, in service centers or in manufacturing plants, electric sharpening machines are used. Depending on the manufacturer, the design of the machines may differ, but they have the same principle of operation.
The saw chain is installed in a special guide, which is mounted on the basis of the turntable and has a special retainer to hold the sharpened tooth.
The latch is able to move horizontally. An electric emery is installed at an adjustable angle to the sharpened tooth, which is turned on by the operator by pressing the start button.
The immersion depth of the emery, as well as the angle at which the sharpening is performed, can be adjusted. The dive itself is performed by the operator. The chain is straightened with a special grinding wheel, which can be changed if necessary.
Description of the sharpening process with files
The first thing to start with straightening the saw chain on the saw is placing the tool on a flat surface 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, it can be cracks, completely broken off teeth. After inspection, you need to set the brake in working condition, thereby blocking its movement on the tire.
The chain must be taut when sharpening with a file.
It is advisable to put a stand under the tire, as it you can use a log, a piece of a branch of a suitable diameter, or the manufacturers of sharpening tools have special clamps to hold the bar in the process of sharpening the chain.
The chain is sharpened by moving the file from the inside of the tooth to the outside. In this case, the file should be located parallel to the special mark on the chain. This mark is applied by the chain manufacturer to indicate the standard sharpening angle.
The sharpened tooth should be located approximately in the middle of the tire, this is necessary for the convenience of work, during the sharpening process, you need to move the chain along the tire, not forgetting to set the brake to the working position each time.
Work on 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 to make the same number of file movements for each tooth, but in practice this is not always possible. teeth have different degrees of damage to the working edge.
To facilitate sharpening the saw chain with a file, special holders can be used, with corner markings applied to them. The markings are made not only for the standard cross-cut, but also for the longitudinal.
Tool holders are also handy if you don’t have sufficient sharpening experience. Experienced sharpeners 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. It uses a regular file as a sharpening tool, which can be replaced independently. The machine is mounted directly on the tire, it also has the ability to adjust the angle of sharpening of the tooth and a special stop that holds the sharpened tooth.
Manual sharpening machine, perfect for beginners. Along with electric models of sharpening machines, manual has its undeniable plus in the form of a low price. Depending on the manufacturer of the hand-held machine, their appearance may differ, but the principle of operation is the same for all.
The depth of cut is adjusted with a flat file, so that there is a difference between the upper cutting edge of the tooth and the height stop.
As you can see from the figure, the depth gauge is grinded in such a way as to bring the gap indicator to the factory value. Below is a table showing the main values of the angles, as well as clearances for the most common types of chains.
As a rule, the size of the gap is adjusted using a special die. It is installed on the chain during sharpening, after which the depth gauge is grinded.
For more information on how to sharpen a chainsaw chain with a file, read here.
When to sharpen
There are a number of factors that will tell you when it’s time to sharpen your chainsaw chain:
- Decreased productivity. Increased cutting time.
- Feels overload on the saw.
- Increased vibrations.
- Small shavings.
For beginners, it is difficult to notice the first 3 points, so it is recommended to keep track of which chips are flying out of the cut.
Small chips from the sawing process, especially brown in color, are a guaranteed sign of dullness.
In this video, you can familiarize yourself with the sharpening process, the most popular methods and tools used for this.
How to tension the chain on a chainsaw
The first thing a newly-made owner of a chainsaw has to learn after studying safety precautions for working with a powerful tool is setting it up. The next thing to do after reading the instructions is to test the work, and if the saw does not work correctly, then the likely reason for this is incorrect chain tension. Therefore, the question immediately arises. how to pull a chain on a chainsaw?
Usually, manufacturers indicate in the instructions for the chainsaw how to do this, but if for some reason it got lost, or the device got without it, for example, by inheritance, then the text below will help you find the right answer.
How to tension the chain on a STIHL chainsaw
If a STIHL (STIHL) saw falls into your hands, do not be afraid and nervous, because got one of the most reliable and high-quality options assembled from components created by one manufacturer at its own facilities.
Always wear protective gloves or gloves before tensioning the chain on your STIHL chainsaw or checking the tension. This will not only protect your hands from cuts on sharp teeth, but also keep them clean, since machine oil is difficult to wash and wash.
The first step is to check the tension of the STIHL chain. If the chain sags (part of the internal teeth is visible), then it is necessary to tighten it. When relaxed, it will damage the bar and render the saw unusable. If the chain is motionless when the brake is released, then it is overtightened, respectively, it must be loosened.
STIHL offers two options for chain tensioning. fast and frontal. Both are used for improvement in the process of work. It should be noted that it is forbidden to pull on an overheated chain. According to the laws of physics, it will shrink after cooling down, and can burst from overtension or damage the tire.
In the frontal version, it is necessary to unscrew the nuts and lift the bar of the chainsaw, on which the chain is installed, by the edge. The bolt on the right must be turned with a screwdriver until the desired tension is obtained. Then the tire must be raised even higher and the nuts tightened back. A quick way to tension the chain of the STIHL chainsaw involves the following: the tension wheel located on top must be turned all the way to the right, after lifting the wing nut handle and loosening it. After the operation, the nut is tightened again and the handle is lowered. This concludes the procedure. STIHL chainsaw models have some differences in the rules for chain tension, it is advisable to find instructions for the tuned model.
How to put the chain on a chainsaw correctly
Important! Tighten the chain when it is cold and never adjust a warm or hot chain! Excessive tension, when the chain cools and contracts, can cause serious problems with the guide bar and headset. Therefore, you should even slightly loosen the chain before starting work, for example, during drizzle.
Based on materials from the official website of the manufacturer www.STIHL.com
Social advertising safety measures for working with
How to tension the chain on a Husqvarna chainsaw
All safety rules described for the model above are the same for Husqvarna (Husqvarna) saws. Do not tighten the chain with the saw engine running. It is allowed to start work only after a complete stop and cooling.
Before tensioning the chain on a Husqvarna chainsaw, check if additional tension is required. It should be noted that new saw chains require more frequent tensioning. From time to time, it stretches during operation, so this operation must be carried out before each use, if necessary. Otherwise, it will be necessary not only to replace the chain, but also to the saw drive mechanisms.
The first step is to loosen the securing nuts located on the clutch cover. The next step is to turn the adjusting screw 45 degrees. If the chain on your Husqvarna chainsaw is overtightened, turn to the left (counterclockwise). Otherwise, the screw turns to the right. If a single tightening is not enough, the operation must be repeated. At the end of the procedure, tighten the nuts on the protective cover using a combination wrench. They can also check the chain tension of the chainsaw by hooking it onto the outer tooth and pulling the chain along the guide in the tire.
How to properly tension the chainsaw chain? We answer!
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If we look closely at the work of a professional feller, who spends almost all his working time with a chainsaw in the forest, we will see that he will never start the saw and will not start working with it until he checks the chain tension and the sharpness of the teeth. These are all very important for productive work.
Saw chain tension. this is a very important factor. A chain that is loosely tightened will wobble and may come off the bar or even burst. Padding is bad too. this is quick wear and increased stress on the saw motor. In addition, the design of almost all saws is such that the chain tension also fixes the tire, and in the free state the guide bar of the chainsaw moves freely left-right.
To check the tension of the chain, you just need to take the saw chain by the tooth and pull upwards at the top of the bar, approximately in the middle or slightly closer to the tip. With the correct tension, approximately one third of the shank remains in the groove in the saw bar. If more. the saw chain is overtightened, but less. undershot. In this case, the saw chain itself should rotate freely by hand.
Tensioning the chain is not very difficult, you just need to learn the sequence of this procedure and perform it regularly.
For your safety, make sure the saw is turned off and cannot accidentally start. Turn a little by hand, preferably in a special protective glove, the chain along its working stroke. If the chain is stretched, the slack at the bottom of the bar will immediately become noticeable. It is on the lower sag that the degree of chain tension is determined.
First you need to pay attention to the chain tensioner, which is located on the right side, inside the side cover that fixes the tire and where the clutch with the brake is located. In most saws, the tensioner looks like a regular bolt, but there are saws with a toolless chain tension system.
Lateral chain tension Tool-free chain tension
Then it is necessary to loosen the side nuts fixing the tire and pull the tire forward with the adjusting screw, taking out the slack. Do not forget to often turn the chain along the guide bar in its working direction, this will help to select the hinge play of the chain and control the smoothness of its movement.
After completing all adjustments, it is necessary to tighten the fixing nuts. When properly adjusted, the chain moves evenly, without snacks and with little inertia. A small amount of pullback margin should remain at the top of the tire. If the chain is overtightened, then it turns with difficulty and stops instantly when you release your effort. Hauling the chain is much more harmful than slack, so it is better to make this adjustment more often than to adjust the saw for future chain stretching.
Under no circumstances should the hot chain be changed or adjusted. When cooled, it will shrink and can permanently deform the guide bar or damage the engine. Allow the chains to cool completely before tightening.
Timely maintenance of the saw headset is a guarantee of durability and trouble-free operation of all types of chain saws. Taking a chain in hand, a specialist in this field is able to tell in what conditions it was operated. Strong wear of the working surfaces of all links. the chain is overtightened, the back surface of the tooth is dull and shiny. too loose, etc.
Modern saw models are already equipped with an automatic chain tightening, but only your attitude to the tool, and in particular to the sharpness of the saw and its tension, can give pleasure from the sawing process, and not repair the unit in extreme conditions.
Chain tensioning algorithm
Such a common and commonplace procedure can confuse many users. Because of this, people turn to service centers where they are set up for a fee. Of course, experts can tell you how to accurately install a chain on a chainsaw, but you can do it in a simpler way by performing the following manipulations:
- the first step is to remove the side cover and install the tire. It should be noted that it is mounted as close as possible to the asterisk;
- then put on the chain and pull it forward by moving the guide forward. The main thing here is to pay attention to the shanks, which must be in the groove;
- a protective cover is attached, where the chain tension screw is installed in the hole of the chainsaw;
- then you should make sure that the cover is installed correctly (it must fit snugly along all edges) and fix it with two pins. However, do not fix it tightly, and the tire should “walk freely”.
Most of it is done, and all that remains is to make the adjustment. To do this, you need to take a “flat” screwdriver and turn the corresponding structure (in most models it is located at the bottom of the casing bolts) to adjust. The chain is tensioned so that its underside does not sag, and there is free movement along the axis. After the bolts are clamped on the body.
Important! To avoid hand injuries, it is recommended to carry out all procedures in special tight gloves.
Many inexperienced workers do not pay attention to the position of the rail and perform fixation in an arbitrary position. However, during the cutting period, there is pressure on the lower plane, which is displaced and sagging is created. To avoid this, it is recommended to set up with the guide rail raised up.
Chainsaw sharpening school.Your saw will cut faster after this video
Some are wondering how to tighten the chain on a STIHL chainsaw from a German manufacturer. The fact is that the regulator from this manufacturer is made in front (next to the outer part of the guide), which creates confusion. All other actions are done in the same way and in the same order.
Of course, most models come with instructions on how to properly tension or replace the chain on a chainsaw, but many points are not indicated in it. Also, a large number of consumers prefer to buy used chainsaws in order to save a significant part of their money. And past owners are unlikely to keep such little things as management.
Oddly enough, the chain tensioner can also break. The essence of the breakdown is that under the metal plate there are gear shafts, which are responsible for the tension. If used incorrectly or overtightened, the edges of the gear will lick off, and the regulator cannot be used for its intended purpose. Eliminating this is quite simple:
- the plate is removed;
- the broken device is removed;
- a new one is put in its place;
- everything is going in reverse order.
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Chainsaw operation requires not only knowledge and experience, but also special care. Every time before using the tool, it is necessary to inspect its technical condition. It is especially important to know how to tighten the chain on a chainsaw, and what is needed for this. If you do not check the degree of tension of the clutch mechanism, then during operation the product may fly off or break, causing serious harm to health.
The chainsaw drive mechanism is a two-stroke internal combustion engine, presented in the form of one cylinder. The main working mechanism is the chain together with the bus. The tire is a guiding device along which the cutting element moves. The chain is based on teeth, which are divided into driving, cutting and connecting.
During the operation of the chainsaw, the chain heats up. This is a negative phenomenon that will shorten the life of the product. To avoid rapid wear of cutting elements, the design of the chainsaw provides for an oil supply, which simultaneously cools the device and lubricates the mechanism.
The stretched chain can fly off the tire at any time, which will lead to the most unpleasant consequences. In order not to risk your health, you need to know how to tighten the chain correctly on chainsaws. over, tension is needed not only for gasoline units, but also for electric saws.
What to turn on the chainsaw to tighten the chain?
In general, for all chainsaws, the procedure will look like this: loosen the fastening of the side cover and rotate the chain tensioner. But the cover mount and tensioner themselves may be different on different chainsaws.
The easiest option is a side cover attached with one or two nuts and a tensioner in the form of a screwdriver bolt (either slotted or Phillips). In this case, simply loosen the nuts and turn the bolt clockwise. The bolt can be located either on the side in the cover, or in the front. again in the side cover, or in the body of the chainsaw itself.
But there is also a keyless chain tension. this is when neither keys nor a screwdriver are required to loosen the fastening of the side cover and rotate the tensioner. These systems look different from different manufacturers. Below you can see in the pictures what they are, and what to twist.
Correct chain tension on the chainsaw
The presence of a chainsaw makes it much easier to run a private household. The chain saw will be useful to the owner, because it is used to prepare firewood, remove fallen trees and minor repairs. However, all chainsaws have a high hazard category and should be checked for serviceability before use. Neglect of checks can lead to both malfunction of the device and serious injury to a person. You also need to know the rules of care and how to tighten the chain on the chainsaw. This information will help determine wear on time, independently change worn components and maintain the unit in proper technical condition.
It may seem that special skills and experience are required to maintain the saw. In fact, everything turns out to be simple, the main thing is to carefully follow the recommendations. At the same time, most of the points are logical: you cannot resort to disassembly when the internal combustion engine is on, and the installation of the chain is allowed on a cold chainsaw. Among other things, the owner is obliged to periodically change the air filters, clean the elements from chips and dirt, inspect the guide for deformation.
Before you know how to properly tension the chainsaw chain, you need to understand the mechanisms for performing this task. Tension adjustment is carried out using the classic version, presented in the form of a bolted connection.
Chainsaws for professional use have adjustment mechanisms that allow you to make adjustments by moving a lever or turning the discs. If tensioners are used for tensioning, the degree of screwing is fixed with special locknuts.
The chain must be tensioned to a certain point. It should not be overtightened, as this will lead to its premature rupture, and it should not be left weakened. Adjustment procedures should only be carried out on the instrument when it is cold. When the tool is hot, the chain is stretched, so the adjustment process will be incorrect.
The negative consequences of improper adjustment include excessive overheating. With strong overheating, the links wear out faster, the teeth become dull, stretching occurs, which ultimately ends with the need to purchase a new part.
How to check for correct tension
The adjustment process is simple. However, the effectiveness of the tool, as well as the service life of its components, depends on the correctness of this procedure. To make sure the chain is properly tensioned, there are a number of steps to follow:
How To Put A Chain On A Chainsaw Properly
- Hand movement of the chain should be light and free.
- Grasp the product at the top of the tire and then pull it up. The optimum tension value is 2/3 of the chain leg (shank) exit.
- When moving the product along the tire, there should be no extraneous noise and squeak
Location of the adjusting screw
Only after confirming the correctness of the actions taken, you can proceed to the procedure for sawing wood. If you use the tool correctly, then its service life increases tenfold, which applies not only to expensive professional models, but also to budget options for chainsaws.
After you have worked with the chainsaw for a while, there will come a moment when the chain tension will loosen. This is due to its stretching and heating. Many do not know how to tighten the chain on a chainsaw, so they start looking for the answer in the instructions or on the Internet. Well, in this article you will learn how to do it correctly. The tension is approximately the same for any chainsaws: at least STIHL, at least Husqvarna, at least Champion, at least some other.