Features And Parts Of A Chainsaw Every User Must Know About

15 TOP Basic Parts Of A Chainsaw - A to Z Options Guide

It doesn’t matter what chainsaw you are going to buy and what you are planning to do with the tool, it is necessary to be acquainted with parts of a chainsaw in order to feel the instrument and to use it as efficiently as possible.

What Is A Chainsaw

To understand the operating mechanisms of a chainsaw you should be aware of what is a chainsaw itself, not only know the names of parts of a chainsaw.

Chainsaws happen to be special tools obtaining teeth on a chain put onto a guide bar which are driven by a certain type of power to cut mainly wood as well as some other materials.


What are these tools applied for? They are implemented to remove trees, to limb, to cut already fallen trees into pieces, to prune as well as to cut up firewood.

Actually, chainsaws don’t happen to be very challenging in use. It is just necessary to have some basic knowledge to understand the operating rules of a chainsaw and know what this instrument consists of so you could apply a chainsaw without any doubt and at the same time keep safe.

What else we should mention is that some chainsaws are suitable for various kinds of tasks, while others are specially designed to perform one particular function. Thus when you are planning to buy a chainsaw you should understand what you are going to do with the tool, so you could make it clear which chainsaw exactly you will use.

Main Parts And Features Of A Chainsaw

Chainsaws are designed in a wide range and obtain different elements and features, so they can be implemented by people with different levels of skills as well as to perform different tasks.parts of a chainsaw

Below you will find a list of the most important chainsaw parts with their characteristics.

Guide Bar

A guide bar is usually considered as the main part of the instrument. The length of this element defines the range and difficulty of the functions which can be performed by this chainsaw. It is also a thing along which the chain spins.

The variety of available lengths is huge and goes from 6 to 72 inches.

Guide Bar Stihl

If you are an amateur user and you just want to apply your chainsaw for tree trimming or firewood cutting, the perfect size of your chainsaw guide bar will vary from 6 to 20 inches.

But if you are planning to operate your chainsaw in a more professional way, you will undoubtedly need a guide bar of 20 inches and more.

It’s easily understandable that a longer guide bar can cope with a wider variety of tasks, but the best way is to choose the length of the bar which is suitable for a particular task, but it shouldn’t be as long as it can be since it can create some difficulties. For instance, if you are going to cut little tree limbs, you should implement a guide bar of 6-8 inches but not the one of 36 inches long. Such long guide bars are specially designed to cut huge tree trunks.


The main thing that you should understand is that chainsaw chains can’t be universal. There have been developed three key measurements which show the main features of a chain so you can find a suitable one for your chainsaw. They are a number of links, pitch and gauge.

  • To find out a number of drive links you have to count individual links of the chain. It is highly essential to know this number since if you need to replace a chain, you should choose the correct one. You always have to remember that common length measurements such as 18 inches cannot be changed into other ones. The length of the chain depends on pitch together with the number of drive links.
  • Pitch shows the chainsaw users how close drive links are positioned on the chain. The most widely used pitch sizes are 1/4”, 0.325”, ⅜”, ⅜” low profile and 0.404”.
  • Gauge shows the width of drive links. The typical gauges are 0.43”, 0.050”, 0.058” and 0.063”.


When you know all the needed parameters, you will be able to choose a replacement chain for your tool. You should also be ready to choose your chain of several kinds of chains with the identical measurements.

Source Of Power

There are several types of power sources for chainsaws, including gasoline, batteries and electricity. We believe that you should know advantages and drawbacks of each type so you could choose the one that is suitable for you.

A gas powered chainsaw is the most widely used type. They obtain a fuel tank and are powered by gasoline. The operating times depend on the power output and amount of load, but in general gas powered chainsaws have the actual cutting time of 15 to 20 minutes without refueling.

types of chainsaw

Electric chainsaws, as it is seen from the name, are made to operate with electricity, so they require their own extension cord which is plugged into some electrical outlet. You should take into account that you won’t be able to use this chainsaw anywhere far from the outlet, however, the advantage of this tool is that it will work as long as it is plugged and without any other limits. Another thing which any user should consider is that this chainsaw is a little bit less powerful than the previously mentioned gas chainsaw.

Battery operated chainsaws can be easily enjoyed by those people who seek for a cordless instrument. These tools are powered by rechargeable batteries, so can be used in many places and at any time you need. But a drawback which you face while using this chainsaw is that it will operate only for about half an hour without recharging. If you need to cut for more time, you will have to obtain extra batteries to change them when it is necessary. This type of chainsaws is less powerful than electric or gas options, so it is suitable for maintaining trees in the yard or simple logging tasks.

Handling Position

There are two main types of positions in which you can hold your chainsaw: top handle and rear handle.

A rear handle chainsaw is very widely used and is perfectly suitable for an amateur as well as professional use. A user applies it standing on the ground.

chainsaw is cutting the log

A top handle chainsaw is specially developed for professional users. They can be implemented only when you are in an elevated position, for instance, in a lift bucket.

There are two handle positions for chainsaws: rear handle and top handle.


If your chainsaw is supplied with a special pole attachment, it can be easily implemented if you need to cut high tree branches from the ground. Saws which can be put onto the pole, usually have guide bars of 8-12 inches long while the pole can reach the branches in 6 to 20 feet.Pole Worx

Chain Oilers

If you want your chainsaw to serve you for years, you have to make sure that your chain is always properly oiled.

A user should take into account that friction between the guide bar and the chain produces a lot of heat. If the elements are not lubricated well, the motor or engine of a chainsaw can be damaged, the guide bar or chain can be spoiled, or the risk of kickback becomes larger.

Chain Oilers

There are three main kinds of chainsaw oilers which are used in chainsaws. They can be automatic with fixed flow, automatic with adjustable flow and manual.

  1. Automatic oilers with fixed flow put oil onto the bar and the chain regularly with a certain interval. The good thing is that you don’t have to take care of making it happen while your chainsaw stays oiled all the time. However, you can’t decide which amount of oil will be put onto the chainsaw, which can be highly essential if there is a huge amount of heat produced while cutting.
  2. Automatic oilers with adjustable flow work as the previously mentioned one, so it oiles the chainsaw regularly, but you can have an influence on the rate of the flow. This type of oiler is considered to be the best since it makes sure that the chainsaw is well oiled and in addition to this you can decide which amount of oil will be used.
  3. Manual oilers work when you push the special button and the oil gets released. It is good when you wish to decide which amount of oil to put onto a chainsaw. The downside of this oiler, however, is that you have to take care of regular oiling yourself.

Chain Brake

This element, which is also named as the hand guard is essential for safe use because it prevents the chain from spinning. It is sometimes called a front handguard since it’s placed at the top handle of the tool and is situated between the chain and the bar.Chain Brake

The chain brake can be applied in two ways: you can push the handle forward with your hands, or the hand guard is started by inertia in case the saw suddenly kicks back.

The latest tools are often equipped with just a manual brake, however, some other models obtain an automatic chain brake together with the manual one.


The throttle trigger is usually placed on the lower part of the rear handle. It is specially designed to regulate the speed of the saw by increasing or decreasing the amount of fuel getting into the engine. In order to start the saw you will need to push a special throttle button.



Useful Information: The Parts of a Chainsaw

Chainsaws and other tools are necessary to perform any sort of significant home improvement or construction project. In this video you will gain a better understanding of parts of a chainsaw, as well as other tools.

Throttle Lock

This element, which is also called a throttle interlock, is also very important for safety. The throttle interlock prevents a sudden acceleration of throttle because you need to push a particular button before starting the throttle.Throttle Lock

Bumper Spikes

The spikes on the saware used to place your tool on the wood during the process of cutting. It also performs the safety function and prevents kickbacks. This feature is especially useful when you need to perform a buck cut.Bumper Spikes

Chain Catcher

This feature is also important for safety. It stops the chain from being thrown back on the chainsaw owner in case the chainsaw chain breaks. The chain catcher is usually placed under the bar towards the front side of the motor. The chain catcher is usually constructed of plastic or aluminum so as not to break the chain.Chain Catcher

When the chain breaks and falls down, this feature catches the chain and makes it shorter so it doesn’t hurt the chainsaw owner.

Decompression Valve

The decompression valve is designed to get rid of compression which is kept in the combustion chamber of the engine. This part of a chainsaw is usually placed at the top of the motor. You have to press a certain button before applying the saw in order to make the decompression valve close during the operating process.Decompression Valve

Anti-Vibration Valve

Anti-vibration valve also happens to be a safety feature. Since the saw happens to be really powerful during the cutting process, it produces a lot of vibration which can be really harmful for its user. The anti-vibration valve is specially designed to absorb this vibration.Anti-Vibration Valve

Air Filter

The air filter is specially designed to prevent sawdust as well as some other dirty things from getting inside of the carburetor. The air filter is usually put under the special cover. It has to be cleaned regularly to maintain the needed air flow.Air Filter


A feature that you have to take into account is that different models of chainsaws have various weights. A little chainsaw powered by electricity can have a small weight of 6 lbs., at the same time, bigger models which are gas powered, may obtain the weight from 20 lbs. and more.chainsaws

It’s highly essential to choose a chainsaw which you can implement conveniently, so you have to pay attention to the chainsaw weight.

Best Chainsaw Producing Companies

If you aren’t sure which chainsaw to buy, you can choose one of the best electric chainsaw which are rather trustful. They are Tanaka, Stihl, Husqvarna, Makita, Hitachi, Echo, Dewalt, Worx and several others. Shop assistants in chainsaw stores will be happy to help you if you have some doubts.chainsaws

Common Questions About Chainsaws

What Chainsaws Need Engine Oil

The answer to this question depends on a type of a chainsaw. If the model is powered by electricity or batteries, it doesn’t need this kind of oil since its motor is electrical.chainsaw is cutting the log

Gas powered chainsaws need engine oil, but it also can vary. 2-cycle chainsaws aren’t supplied with a built-in system of lubrication, so they need to have oil mixed with gasoline to be put into a special tank. 4-cycle chainsaws have the mentioned above system, so the oil is put inside the engine and is used with a particular type of oiler.

If Your Chainsaw Is New

It will be very good if you decide to break in a brand new chainsaw before applying it for cutting. In this way all chainsaw elements can be warmed up and get ready for operating.chainsaw

Just try to follow the steps we are going to cover below:

  • If your chainsaw obtains a manual oiler, you have to push the oiling button several times. If the oiler is automatic with adjustable flow, you should make the flow bigger, so you have to turn a certain screw;
  • Then you should start the tool and give the engine the opportunity to idle for several minutes;
  • The next step is to turn off the motor;
  • After disconnecting the chainsaw spark plug lead don’t forget to put on special safety gloves;
  • You have to make sure that the chain of your chainsaw has the proper tension so the chainsaw will work in the most effective way;
  • If your chainsaw is gas powered, make sure that the motor doesn’t operate at full throttle for a long time for the first 6 to 10 fuel tanks. You should prefer ½ to ¾ throttle when you start using your instrument.

Chainsaw Kickbacks

The kickback happens if the guide bar accidentally moves up and back to the user. Sometimes it can happen really fast and it can pose a threat to the chainsaw user.chainsaw is cutting the log

It can happen because of two reasons: either the nose of the chainsaw chain strikes the cutted object or the wood closes in in the cutting process.

The top of the guide bar of the chainsaw is often called a kickback danger zone. There is a high risk of kickback appearance in this spot. Thus it’s not recommended to implement this side of the chainsaw in order to avoid receiving an injury.

Why It Is Important To Know As Much As You Can About Chainsaws

Actually, a chainsaw happens to be a rather dangerous tool: it can cause rather severe injuries and even death of its user. Therefore, it’s highly recommended to know enough about its construction and parts of a chainsaw, how everything works and what can happen if you do something wrong or your chainsaw or chain breaks.chainsaw is cutting the log

In addition to this, when you choose a saw, you should make sure that the chainsaw you are buying has all the needed safety features and efficient chainsaw parts so you can apply it efficiently, conveniently and with the least safety hazards. And don’t forget to use the safety gear!

We hope that everything that we have mentioned about parts of a chainsaw will be helpful in your future operations, and you will use a chainsaw with confidence and joy!


( No ratings yet )
Serge Labz/ author of the article

My work for a long time was associated with the technical adjustment of equipment, repair of premises, with small locksmithing work. I worked in a chain of cafes.

Almost every day, the staff of the cafe needed my help, and I in return, having done their work, received a lot of smiles and thanks.

Choose your best chainsaw
Leave a Reply

;-) :| :x :twisted: :smile: :shock: :sad: :roll: :razz: :oops: :o :mrgreen: :lol: :idea: :grin: :evil: :cry: :cool: :arrow: :???: :?: :!: