What is the angle of the chain on a chainsaw?

How to sharpen chain on the chain sharpening machine?

Every gardener wants his or her tools to always be in working order and to do their job properly. This is especially true for those tools that should cut or saw smoothly and quickly. This is about the chainsaw and how to get it back in working order in good time. chain saw blade dulls with regular use and starts to cut jerkily and crooked. Only regular inspections prevent a tool from going completely out of order.

Technical features of the sharpening process

Sharpening is complicated by the many cutting edges on the teeth, which are located in different planes and have different sharpening angles. You have to perform the same amount of movement while sharpening the teeth, and you have to maintain the same amount of pressure. The result is that all teeth get the same sharpening.

Also, if the saw chain is sharpened more than 4 or 5 times, the depth limiter must be reduced.

What sharpening tools are available?

To start the work you need to stock up on tools, which are divided into two types.

Hand tools

A set of tools needed for sharpening saw teeth:

  • A flat file, which you learn to use in your schoolwork lessons. Use it to sharpen the depth stop.
  • A round file of a certain diameter, which is necessary for processing the cutting tooth. It comes with an additional attachment, a holder with lines that tell you how to hold the tool correctly in relation to the chain. The holder is placed on the saw tooth with respect to the guide lines and the file position is under the cutting surface.
  • Template, which is used for dressing and compliance with the parameters.
  • A hook is needed to remove sawdust from the chain.

Kits of various equipment can be purchased at a specialty store

Metal sharpening templates to help calculate the sharpening depth

Manual and electric machines

How to sharpen a chainsaw chain if the cutting edge of the tooth is completely worn out due to overtime? Files can also be used, but this would be unproductive and time-consuming. The best option. the use of machines, and here you have to choose, because the machines are different. manual and electric.

STIHL manual chain sharpening machine

Parameters are set before the work and the machining process is much faster than with files: for sharpening each tooth it is enough to make 2-3 movements. Electric machines are also difficult to set up but work quickly and accurately.

An electric tool can save a lot of time, but not everyone is willing to shell out a lot of money for it

How to sharpen a chainsaw chain

Chainsaw chain sharpening is a procedure regularly encountered by gardeners and professional woodcutters. In this article, the master plumber will tell you how to restore the damaged teeth of the saw chain and quickly return it to its previous working condition.

angle, chain, chainsaw

To understand how to properly sharpen a chain, you need to understand the basic principles of its construction and operation. You can’t just sharpen a chain by eye, you need to know the basic characteristics of the chain and its components.

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A chainsaw chain is made up of three types of links made from high-alloyed steel:

  • Cutting. basic chain elements. A distinction is made between right- and left-handed, which are arranged alternately, their cutting edges are located above the plane of the bar. The design of the teeth includes the cutting depth limiters.
  • Drives (shanks). serve to transmit torque from the gasoline motor to the chain through the drive sprocket. This feature extends sprocket life and gives the chain a more stable hold on the bar.
  • Connecting. connects the chain shanks and cutters.

One of the main elements of the chain is the cutting tooth that plunges into the wood and removes shavings. The depth limiter of the tooth determines the thickness of the wood chip and limits the depth of penetration into the wood.

Depending on the type of chain, the recommended settings relative to the limiter are 0.025″ (0.65 mm) or 0.030″ (0.75 mm).

angle, chain, chainsaw

The long life of any chainsaw depends on proper care and use, including the chainring. Good performance of the latter influences the performance of the device and its productivity parameters. Failure to sharpen in a timely manner can cause some problems with the saw itself. The most common is:

  • Crooked cuts;
  • High loads on the saw, resulting in increased wear on the parts of the device, and therefore a reduction in the life of the entire device;
  • Increased fuel consumption.

If the saw produces fine, dusty chips and the saw plunges into the cut with great force, it is a blunted target.

There are other signs of a dull chain:

  • The speed of the tool has decreased;
  • Uneven and sharp sawdust is produced;
  • You have to put a lot of effort into cutting the wood;
  • The chain is loose or has become slack.

A chainsaw chain can blunt quickly for the following reasons:

  • If you work with the saw too often;
  • When the operator presses hard on the saw when sawing;
  • If the chain is made of poor quality metal or if the steel is not properly heat-treated;
  • When frequently sawing raw or resinous wood;
  • When sawing hardwood trees such as oak, birch, cherry, acacia, elm, ash and others;
  • If the chain encounters obstacles like sand or rocks in its path;
  • If the chain is not properly sharpened or has insufficient tension during operation.

The device of all chain saws is similar, so the algorithm for removing the chain will be the same:

  • First you should wear protective cotton gloves to avoid cuts from the cutting teeth.
  • Remove the protective cover from the working part of the chainsaw and put it on its side on a flat surface.
  • Using a socket wrench of the right diameter, unscrew the locking nuts that hold the housing and the bar, remove the top cover of the housing.
  • Now you need to slide the bar all the way down to the sprocket, thereby relaxing the chain, and remove the working elements from the fastening bolts.
  • Detach the chain from the bar.

How to sharpen a chainsaw chain

Sharpening the chain of a chainsaw is a procedure that gardeners and professional woodcutters regularly encounter. In this article, the master plumber will tell you how to repair the damaged teeth of the saw headset, and quickly return it to its previous working condition.

See also  STIHL 180 chain oil does not flow

To understand how to properly sharpen the chain, you need to understand the basic principles of its structure and operation. You can’t just sharpen a chain by eye, you need to know the basic characteristics of the chain and its components.

A chainsaw chain consists of three types of links made of high-alloy steel:

  • Cutters are the basic elements of the chain. A distinction is made between right-hand and left-hand cutting teeth, which are arranged alternately, with their cutting edges above the plane of the bar. Teeth are designed to have blade depth limiters.
  • Drive (shanks). serve to transmit torque from the gasoline motor to the chain through the drive sprocket. This feature extends sprocket life and gives the chain a more stable hold on the bar.
  • Coupling. couplings between shanks and cutting teeth of the chain.

One of the key elements of the chain is the cutting tooth that plunges into the wood and removes chips. The tooth depth limiter determines the thickness of the wood chip and limits the depth of penetration into the wood.

Depending on the chain type, the recommended setting in relation to the limiter is 0.025″ (0.65 mm) or 0.030″ (0.75 mm).

The long life of any chainsaw depends on proper care and use, including the chainsaw. Good performance of the latter affects the performance of the device and performance parameters. Untimely sharpening can cause some problems with the saw itself. Most often these are:

  • Crooked cuts;
  • High loads on the saw, resulting in increased wear on the parts of the device, and hence a reduction in the life of the entire device;
  • Increased fuel consumption.

If the saw produces fine, dusty chips and the saw itself sinks into the cut with great force, it means the target is dull.

There are other signs of a dull chain:

  • The speed of the tool has decreased;
  • Uneven and sharp chips are produced;
  • Greater force is required to cut through the wood
  • The chain is stretched or has become slack.

A chainsaw chain can quickly become blunt for the following reasons:

  • If you saw too often;
  • If the operator exerts excessive pressure on the saw while sawing;
  • If the chain is made of poor quality metal or if the steel is not properly heat-treated;
  • If you saw wet or tarry wood frequently;
  • When sawing hardwood trees such as: oak, birch Karelian, cherry, acacia, elm, ash and others;
  • If the chain encounters obstacles like sand or rocks in its path;
  • If the chain is not properly sharpened or has insufficient tension when you use it.
angle, chain, chainsaw

The design of all chain saws is similar, so the algorithm of actions when removing the chain will be the same:

  • Protective cotton gloves should be worn first to avoid cuts from the cutting teeth.
  • If you remove the protective sheet over the working part of the chain saw and place it on a flat surface on its side.
  • Unscrew the fastening nuts that hold the body and guide bar with a socket wrench of the right diameter and remove the top cover.
  • Now you need to slide the bar all the way down to the sprocket, thereby relaxing the chain, and remove the working elements from the fastening bolts.
  • Disconnect the chain from the bar.
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How to properly sharpen a chainsaw chain?

How to sharpen a chain for a chainsaw with your own hands? For a person who often uses this tool, this question is especially relevant, because to go to a specialist every time is expensive and takes a lot of time. It’s better to learn how to do it yourself and always solve the problem as soon as it arises.

The three most popular ways to sharpen a chainsaw chain are: using a file, an angle grinder, or a machine. Let’s look at each one in detail.

Considering the material from which the teeth are made

Most chainsaws are made of high-alloy chrome-nickel steel for the cutting teeth.

Therefore, when buying a new one, you should only visually check the quality of the cutting elements and their sharpening. However, when using the tool to work on particularly hard, frozen, or heavily contaminated materials, it is necessary to harden the teeth. For such purposes there are variants with special carbide tips on the teeth.

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Properly adjusting the chain tension

A tensioning device on the underside of the chain guide bar helps to tension the saw chain correctly. In order to perform this operation correctly, you must first correctly put the cutting element on the bar of the electric saw. There is a very easy way to get the chain correctly tensioned.

  • Loosen the nuts securing the bar to the body.
  • One hand is used to lift the guide bar with the far end up without removing it from the saw.
  • Insert the cutter bar with the other hand onto the guide bar sprocket and the shanks of the guide teeth into the grooves (“grooves”) of the bar.
  • Place the lower part of the cutter bar on the drive sprocket and lower the bar to the horizontal position.
  • Pressing the guide bar lightly against the body with the fastening nuts, start tensioning the cutting element by turning the tensioner adjusting screw with a screwdriver.
  • Once the cutting element has been sufficiently tensioned, the fastening nuts are tightened.

Tension check: the operator takes hold of the top stringer by hand and raises it to the top. the normal tension is when the bowstring is lifted up so that the shanks of the three arms of the bowstring are visible, i.e. 0.5 to 0.6 cm above all lifted guide tines. If the chain meets this requirement, the operation is completed. If the tension is incorrect, loosen the fastening nuts and either re-tension or loosen the tension. After adjustment, retighten the nuts and check the tension again. It is often considered normal tension if the bowstring makes a resounding click when it is released by banging against the bar.

Sharpening a cutting part is not a hard job, but it also requires some knowledge and experience. The described technique is the same for chainsaws and electric saws, as they differ only in the type of engine. The basic requirements for sharpening any chainsaw are caution, care and accuracy.

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