Husqvarna 142 How To Remove An Asterisk

Husqvarna 142 How To Remove An Asterisk

The movement of the chain on the tire chainsaw is due to the drive sprocket connected to the engine gearbox.

Wear on the sprocket on the sprocket means that it needs to be replaced as soon as possible, otherwise it will not clutch with the chain and the chain itself will be damaged.

In this case, it must be taken into account that the drive sprocket has a number of features depending on the model of the saw and its type. In this article, we will highlight such a question as how to remove an asterisk from a chainsaw.

Feature of saw designs

Husqvarna 142 How To Remove An Asterisk

Professional chainsaw brand STIHL

In operation, there are already several dozen chainsaws from different manufacturers, capacities, and most importantly special purposes. The saws are divided into:

  • professional (for felling and construction);
  • household (garden).

Accordingly, the drive gear will be different for them, as well as the sequence of actions. This is a feature of saw gearboxes. With most professional tools, the tire can change its location on the saw in two planes.

Husqvarna 142 How To Remove An Asterisk

The main malfunctions of chainsaws and actions to eliminate them are described here.

Sequencing

Husqvarna 142 How To Remove An Asterisk

Chain sprocket, crown and bearing

The vast majority of household saws are sold under the brand name Partner. They simply change the star even at home, having bought a repair kit.

Since most often the asterisk in household saws is a prefabricated mechanism, it rotates due to the bearing. That is, changing the sprocket, you inevitably change the bearing and not the shaft.

In professional models (such as Stihl and Husqvarna), as well as in household ones, if it is not possible to have a specialized key for removing a star, use a soft cord with a diameter of 5-6 mm.

In all cases, the sequence of actions is as follows:

  1. You must open the side cover to gain access to the tire and sprocket.

Husqvarna 142 How To Remove An Asterisk

  1. Next, remove the tire by loosening the chain.

Husqvarna 142 How To Remove An Asterisk

It looks like a chainsaw tire

  • After the sprocket is free, you need to unscrew the spark plug to access the engine piston.

Husqvarna 142 How To Remove An Asterisk

You may also be interested in an article on how to make a vibrating table for paving slabs: //6sotok-dom.com/instrumenty/vibrostol-svoimi-rukami.html

  • Manually rotating the sprocket, move the piston almost to the very top of the channel and fill the hole most tightly formed from the candle with a soft cord, thereby blocking the movement of the piston.

Husqvarna 142 How To Remove An Asterisk

  • Use the open-end wrench and unscrew the sprocket, depending on the model of the saw and the type of gearbox.

Husqvarna 142 How To Remove An Asterisk

Thus, adhering to the recommendations given in the article, you can easily remove the sprocket from the chainsaw yourself.

How to remove and replace the drive sprocket on Husqvarna and Stihl chainsaws is described in detail in this video:

How to remove an asterisk from a chainsaw: varieties and design features

With the constant use of such a tool as a chainsaw, it is important to regularly carry out diagnostic measures, replacing consumables and parts. One such consumable is an asterisk or chain drive mechanism. If the question arises of how to remove the sprocket correctly from the chainsaw, then the time has come to replace it. When and how to correctly replace crowns on chainsaws, we will consider further.

Husqvarna 142 How To Remove An Asterisk

What is the chainsaw sprocket for?

Chainsaw sprockets are clutch basket parts designed to rotate the chain. On chainsaws, a centrifugal drive type is used, the operation of which is automatic, which depends on the speed of the engine itself.

The device of the centrifugal mechanism is such that when the chainsaw is idling, the sprocket does not rotate. This is because the elements of the clutch basket have a degree of freedom. This freedom is ensured by friction pads and springs. As the number of revolutions increases, the centrifugal force increases the force of the springs, as a result of which the elements with friction pads are displaced. In this case, torque is transmitted to the drum and sprocket, which, in turn, moves the saw chain.

This design of the clutch mechanism is due to the fact that when the chain is jammed, it slips. Thus, it is possible to prevent jamming of the internal combustion engine, as well as to avoid its premature failure. Regular use of the saw causes the crown to wear out, and there is a need to replace it.

Design features

The leading sprocket of a chainsaw can be of two types: combined or solid (stationary). One-piece has the form of a monolithic device, which is located directly behind the clutch. Such asterisks in the form of a clutch plate with a welded gear star are also called stationary. This type of design is used in most chainsaws. Replacing such crowns on a chainsaw does not present any difficulties, but it will only be necessary to remove them entirely with a drum.

On expensive chainsaws, prefabricated sprockets are used. The crown is put on the drum shaft, resulting in the transmission of torque to the chain. Replacing a prefabricated device is even easier, since the crown is removed, while the drum remains in place. The prefabricated structure of the element under consideration is a way to extend the life of the clutch. After wear on the drive sprocket, replacement is required. If this is not done, then the resource of the tool is significantly reduced, as a result of which the wear rate of the internal combustion engine increases.

Husqvarna 142 How To Remove An Asterisk

How to determine the need for crown replacement

The sprocket is replaced immediately after the product in question wears out and cannot fulfill its functions. The wear of the crown can be determined by the following characteristic properties:

  • The presence of noticeable radii in the area of ​​transition of the tooth to the cavity.
  • Chipped metal on top of teeth.
  • Uneven tooth width.
  • Detection of scoring on the inside of the hub.
  • Grooving from the tire.
  • The chain is off the tire.

The most important sign by which to check on the above items is the occurrence of signs of jamming of the chain when starting the chainsaw. Any of the above factors requires immediate replacement of the item in question. Details on the types of leading stars and their differences can be seen in the video.

How to remove an asterisk on a chainsaw

Before changing an asterisk on a chainsaw, you must first purchase a new element. The drive sprocket should be changed based on what type of element is used on the chainsaw. One-piece devices are often used on domestic and semi-professional ones, and prefabricated ones on professional units.

The process of removing an entire product is the following:

Husqvarna 142 How To Remove An Asterisk

  1. Initially, the casing is dismantled.
  2. After that, the saw bar is removed together with the chain.
  3. The snap ring and washer are removed.
  4. After that, you can remove the clutch together with the drum.
  5. The crown from the drum is removed using a special key, which is usually attached to the instrument.

After replacement, reassemble the removed parts in the reverse order. The process of replacing the crowns of the prefabricated type is almost similar to dismantling the whole product, only, ultimately, you should only change the gear element without a drum. After the work done, you need to check, evaluating the effectiveness of the actions taken. To do this, chain is tensioned using the tensioner adjusting screw.

It’s important to know! Stationary crowns can be replaced with prefabricated ones, which will save significantly.

From the above it follows that the replacement of crowns is an important diagnostic measure, if not observed, the owner of the chainsaw risks premature occurrence of the need for major repairs of the motor. The video above shows excellent material that describes all the details of the design, removal and replacement of the chain saw sprocket.

Replacing the drive sprocket on a chainsaw

Regardless of the class of the chainsaw and its operational characteristics, the design of removable saw sets is almost identical. The saw device kit includes a guide bar made of a special alloy and a chain, which is activated by the gear ring of the drive mechanism. To extend the life of the saw chain, timely replacement of the sprocket on the chainsaw is important.

Husqvarna 142 How To Remove An Asterisk

Video: Husqvarna 142 How To Remove An Asterisk


The feasibility of timely replacement of worn parts of the drive chain

The design of its crown determines such an important parameter as the choice of chain by step.

  • Installing a new part on a worn sprocket reduces its smoothness, accelerates wear, and initiates the risks of breakage and the creation of a traumatic situation.
  • There is also an increase in operational loads on the engine and the elements of the kinematics of the tool.
  • A similar process takes place when old extended chains are installed on the tire, the diameter of which is adjusted to the size of the tire by removing part of the links.

Experts also do not recommend arbitrarily changing the size of the stars. An experiment can adversely affect the engine resource and the kinematics of the instrument as a whole.

Safety of sawing operations of various degrees of complexity is ensured by the effective operation of the emergency stop brake and devices that block the expansion of the chain ends in case of an accidental break. In any case. the most reliable prevention of contingencies, maintaining the chainsaw in good condition.

A way to extend the leading sprocket resource

In practice, for uniform wear of the crown of the sprocket, a set of several chains of the same type is used, which alternately change as the cutting edges of the saw links become blunt. However, sooner or later, the user is faced with the need to replace a worn part.

Criteria for choosing a repair kit yourself

Husqvarna 142 How To Remove An Asterisk

The desire of the owner to equip the headset with a saw chain with another step, leads to the need to change the asterisk to a part with a crown of the corresponding profile. This requirement applies to the entire range of European and Chinese chainsaws.

The operational reliability of a European-assembled saw, when operating in difficult conditions of increased loads, can significantly deteriorate if, instead of the original part, a Chinese asterisk is used.

Structural problems of different models

The problem is complicated by the design of branded chainsaws, which provides for the replacement of a worn drive only after the complete dismantling of the clutch mechanism and other components. In another embodiment, in order to remove the sprocket from the chainsaw, you must have a special key.

A design feature of a significant part of chainsaw imports is the placement of an asterisk on the clutch mechanism.

  • With significant wear of the teeth, the drum is to be replaced, which is a single unit with the drive.
  • The more progressive design of the drive sprocket allows you to restore the performance of the part by replacing the crown.

In the list of factory kits attached to the saws, such a tool is extremely rare. The problem is solved by replacing the parts that have exhausted the resource in the service workshop or by making the necessary fixtures at home.

The lack of prerequisites for the restoration of a worn star

Husqvarna 142 How To Remove An Asterisk

The leading sprocket for a chainsaw of any power category is made of special steel, processed by a special technology, so repairing a part by welding by arc welding and subsequent milling is not possible.

The price of the part itself is several times lower than the cost of replacing it in service structures.

  • The benefits of self-repairing a drive unit at a lower cost and time.
  • If you have the appropriate tool, you can manage the work for a fairly short time interval.

Alternative solutions

The sequence of working moments is identical for almost all known models in the domestic market of chainsaw equipment. Experts advise using a branded part for replacement.

If we are talking about the modernization of this node, the feasibility of such a change should be clarified by consultation with an experienced specialist.

The best option is to buy a repair kit, which also includes a replacement bearing. In addition to the key, you may need an individual for each model puller of the clutch drum, a metal or plastic stopper to fix the piston in a predetermined position.

Algorithm for self-changing drum clutch with sprocket

Leading sprocket replacement technology provides for the implementation of the entire amount of work in a given sequence:

  • dismantling the headset and air filter;
  • installation of a piston retainer in the spark plug hole;
  • the clutch and the gear drive made at the same time as the drum are removed by means of a puller; the sprocket can only be unscrewed clockwise.

If there is a lot of wear on the separator, breakdown of the springs of the centrifugal mechanism and cams, it is recommended to replace the entire kit.

If the condition of the removed parts is not in doubt, the whole mechanism is assembled in the reverse order. For reliable fixation of the clutch on the crankshaft, it is enough to unscrew the piston stopper, pull out the cord of the standard starter and return it to its original position.

It should be cautioned by amateur craftsmen from simplifying the requirements of repair technology and saving money on installing relatively cheap Chinese components.

The quality of the work done is guaranteed by attention, accuracy, compliance with the sequence of all dismantling and assembly operations.

Tips: how remove asterisk with chainsaw

  • Features clutch drum in chainsaws
  • Substitution Method clutch drum

Many tools require constant replacement of consumables. It concerns and drank. That is why the question is how remove asterisk with a chainsaw, which is often called a clutch disc or a centrifugal mechanism, is very popular among home craftsmen. In this regard, you need to make out what is called an asterisk and for what purpose it is needed.

The clutch drum, referred to as the asterisk, is an integral part of the chainsaw.

Features clutch drum in chainsaws

A drum located at the base of the clutch mechanism is an integral part of the chain drive system. This detail resembles a star in its own form, due to which it got its name. Depending on the type of chainsaw, the part can be professional or household. Because a professional saw is used more often than a household one, the leading sprocket asks for a constant change. If we talk about household tools, then everything depends on the amount of work performed and the load that is on the device circuit.

In most cases, the sprocket, crown and saw bearing require replacement.

Read the same

In any case, the main prerequisite for replacing the sprocket is the wear of its teeth on the chain. In this case, when a solid drum is installed in the device, the surface of the chain cuts through it almost completely, which asks for a complete replacement of the entire part. If chainsaw It has a drum with a replaceable crown, here you can restrict yourself to only replacing the crown.

Usually in order to take off an asterisk with a chainsaw, many people turn to special service centers, but if you need to save your home budget, you can do this work without the help of others. This event does not look complicated, but you need to have all the necessary parts and tools. The sprocket swap process is the same for any device model.

Replacement Algorithm clutch drum

Husqvarna 137, clutch and star replacement

A fairly frequent problem in chainsaws Husqvarna 137 and 142. breakdown of the oil pump. This video shows the fast-paced.

Quick repair Husqvarna 137/142. Replacing the oil pump.

The video will help to change the driven sprocket on the Husqvarna chainsaw. Carefully and step by step I will show how the action should be.

The chainsaw clutch closes the sprocket.

First, it is worth noting that when buying spare parts for a chainsaw, you must strictly observe the type of drum or use the advice of a specialist if it is a question of its modernization. Usually, while replacing the drum and the saw chain, the drum bearings are also replaced.

Read the same

Here you should receive a special repair kit, in which the presence of a drive sprocket and a bearing is foreseen. Then you should prepare the tool and details that will be required for the work:

  • universal key, sold complete with a chainsaw;
  • mechanism piston stop (in standard cases it is plastic or iron);
  • puller of a centrifugal mechanism or clutch (selected depending on the model of the chainsaw).

During the operation, the following acts are performed:

The location scheme of the chainsaw sprocket.

  1. At first, the saw headset is removed, the nuts of the tire cover are unscrewed using a universal key. The cover is removed, the tire and chain are removed.
  2. Then the air filter is removed.
  3. The universal key turns out the saw candle. Instead, the prepared piston stopper is inserted, which allows to fix the position of the piston in the cylinder.
  4. The clutch puller is installed in the universal key connector. Then, using the resulting device, the clutch is turned out. All actions must be carried out clockwise.
  5. The clutch is removed, freeing up access to internal parts. Now you can take off asterisk (clutch drum).
  6. Depending on the type of drum, it is inspected or checked. An asterisk or crown changes to new ones. When installing new parts, you must carefully check the condition of the clutch separator. Increased attention here needs to be paid to centrifugal springs and cams. If strong wear is detected, these parts also need a permanent change.
  7. If the condition of the parts does not cause complaints, all parts of the chainsaw are assembled in reverse order. First, the piston stop is twisted, the starter cord is stretched, then the stop is screwed in again. Such complex actions allow you to clamp the centrifugal mechanism of the chainsaw on the crankshaft.
  8. Using the universal standard key clutch clamped counterclockwise, in other words against chain rotation.
  9. After that, all the nodes and parts can be successfully screwed into their original places.

In order to change the asterisk on the chainsaw, all work must be done carefully and carefully.

Without the availability of special devices, repair work can fail: not only a star or a centrifugal mechanism, but also a saw chain can break.

As you can see from the information provided, the question is how take off an asterisk from a saw can be successfully resolved on its own. Once the operation is performed, it will be possible to carry out it again and again, as the need arises, and attention and accuracy will be the key to a job well done.

Husqvarna 142 How To Remove An Asterisk

The movement of the chain on the tire chainsaw is due to the drive sprocket connected to the engine gearbox.

Wear on the sprocket on the sprocket means that it needs to be replaced as soon as possible, otherwise it will not clutch with the chain and the chain itself will be damaged.

In this case, it must be taken into account that the drive sprocket has a number of features depending on the model of the saw and its type. In this article, we will highlight such a question as how to remove an asterisk from a chainsaw.

Feature of saw designs

Husqvarna 142 How To Remove An Asterisk

Professional chainsaw brand STIHL

In operation, there are already several dozen chainsaws from different manufacturers, capacities, and most importantly special purposes. The saws are divided into:

  • professional (for felling and construction);
  • household (garden).

Accordingly, the drive gear will be different for them, as well as the sequence of actions. This is a feature of saw gearboxes. With most professional tools, the tire can change its location on the saw in two planes.

Husqvarna 142 How To Remove An Asterisk

The main malfunctions of chainsaws and actions to eliminate them are described here.

Sequencing

Husqvarna 142 How To Remove An Asterisk

Chain sprocket, crown and bearing

The vast majority of household saws are sold under the brand name Partner. They simply change the star even at home, having bought a repair kit.

Since most often the asterisk in household saws is a prefabricated mechanism, it rotates due to the bearing. That is, changing the sprocket, you inevitably change the bearing and not the shaft.

In professional models (such as Stihl and Husqvarna), as well as in household ones, if it is not possible to have a specialized key for removing a star, use a soft cord with a diameter of 5-6 mm.

In all cases, the sequence of actions is as follows:

  1. You must open the side cover to gain access to the tire and sprocket.

Husqvarna 142 How To Remove An Asterisk

  1. Next, remove the tire by loosening the chain.

Husqvarna 142 How To Remove An Asterisk

It looks like a chainsaw tire

  • After the sprocket is free, you need to unscrew the spark plug to access the engine piston.

Husqvarna 142 How To Remove An Asterisk

You may also be interested in an article on how to make a vibrating table for paving slabs: //6sotok-dom.com/instrumenty/vibrostol-svoimi-rukami.html

  • Manually rotating the sprocket, move the piston almost to the very top of the channel and fill the hole most tightly formed from the candle with a soft cord, thereby blocking the movement of the piston.

Husqvarna 142 How To Remove An Asterisk

  • Use the open-end wrench and unscrew the sprocket, depending on the model of the saw and the type of gearbox.

Husqvarna 142 How To Remove An Asterisk

Thus, adhering to the recommendations given in the article, you can easily remove the sprocket from the chainsaw yourself.

How to remove and replace the drive sprocket on Husqvarna and Stihl chainsaws is described in detail in this. video:

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»How to wear

How to mow a lawn mowing?

Private trader wrote.
Excuse me, but who is this understood by professionals?

Professionals without quotes are people who have undergone training and competently operate the equipment.

Summer resident I wrote.
Discharge gas is necessary only when moving from one mowing area to another. When MAKING, it is not necessary, why does the engine change loads?

Private trader wrote.
the need to change speed when the trimmer moves. What for?

To these questions, at one time, there was a detailed answer from Husqvarna:

1) Gas discharge is useful, firstly, because the engine is slightly cooled, and secondly, the cylinder-piston group is better lubricated (this is especially true for mowing the disk, since the disk continues to rotate and rotate the engine by inertia). the throttle valve closes, enriched fuel flows through the idle channel, and more oil enters the parts of the cylinder-piston group.

2) Gas discharge is necessary if you have an idle passage. for example, when folding grass in rolls: to the left. mow, throw grass, dropping gas, lead to the right, increase gas, start mowing to the left.

3) In principle, you can mow without ever dropping gas (if there are no idle runs and the mower is constantly under load), but watch out for the following things. a) the fishing line can wear out, two short stumps will not give resistance to the engine, it will work at maximum speed and overheat; b) any engine can overheat if kept at maximum speed (Husqvarna designers did not set themselves the task of getting into the Guinness Book of Records for the maximum time before killing the lawn mower at maximum speed), so it is better to dump gas.

Oleg_O wrote.
mows and fishing line and disc

What I quickly found on the Internet (for example, =.)) Is drawn with fishing line. I did not see anything about the disc.

Oleg_O wrote.
spin at full power in reverse

And why just give full speed at any move? When you start to really work, the engine will clearly understand whether you need to add speed or not. Why do you need full speed when you have three blades of grass in front of you?

Oleg_O wrote.
about variable loads, how much is not good for the engine

Remember how 2T motorcycle engines work. They do not work constantly at full speed. There will be nothing with a 2T engine from the change in speed.

Oleg_O wrote.
the reverse motion doesn’t seem to be very convenient to mow, the grass scatters in different directions

When working with fishing line (this is exactly what I described), chopped pieces of grass scatter in all directions (including your trousers and shoes) in any direction of movement. That is why fishing line can be well aligned lawn. If you have a disk formed by a turning line, passes at the same distance from the ground, then with your duck forward movement over the treated area of ​​the line, it passes 2, or even 3 times. This allows you to remove the stairs, other flaws. No need to hurry.

How to change the fishing line in the trimmer and which is better to choose

Since the choice of trimmer, we examined in a previous article. then today we will tell you how to properly trim the trimmer with fishing line, and which is better to choose based on the working conditions.

After you bought a trimmer and began to use it actively, sooner or later the question will arise about replacing the fishing line, since this is the most wearing element in the tool, then intensive use of the trimmer will lead to frequent replacement of consumables.

What types of woods are

The most common type of fishing line that fits almost all types of reels # 8212; cord of round section. This is an ordinary fishing line suitable for mowing juicy grass, but it will be much more difficult to mow dead wood with it, and even more so it can’t cope with the bush.

As a rule, the diameter by which young grass can be mowed does not exceed 1.6 mm. The thicker the thread, the more coarse grass it can overcome.

Important! Choosing a fishing line for the trimmer must be guided by the instructions for your tool, since a thin thread will increase the wear of the twisting mechanism, and a thick one will overload the engine.

There are fishing lines with sharp edges in the form of an asterisk or square, this option is more suitable for mowing dry grass just due to the existing sharp edges, but its drawback is more wear and tear and is inferior in strength to round cord.

There are fishing lines with improved aerodynamics with characteristic dents, scales and notches, such a product produces less noise, but they are used only on lawn mowers, since the exit of such a thread from the reel is difficult, it is used most often with discs in which segments are inserted. The disadvantage of this product is its fragility.

Most often in gas trimmers with an engine power of more than 1.5 hp apply cords with a metal cable inside. This thread is ideal for mowing dry grass and small bushes. The presence of a core positively affects the wear resistance of this material. The disadvantage of such a cord is its price, which is significantly higher than the listed opponents.

How to Fill a Fishing Line into a Trimmer Coil

It takes about 10-15 minutes to wind the line. What is a trimmer coil? Plastic case with a cassette inside, on which there is a special hook for convenient winding of fishing line. Almost all the coils of the trimmers have a similar principle of fastening, this is the central screw-button, when pressed, it becomes possible to pull the fishing line of the required length. The photo below shows some examples of different coils for trimmers.

Video: How to Swap a Coil for a Husqvarna Trimmer


The bobbins of trimmers, the motor of which is located near the ground, have a different mount to the axis of rotation, they have two buttons on the spool located on the sides that need to be pressed, otherwise the replacement of the thread is no different from other cassettes.

The principle of proper winding of the fishing line is similar in all of the above cases, so for example, consider the standard version with two antennae.

How to Swap a Coil for a Husqvarna Trimmer

To remove the reel with fishing line, it is necessary to unscrew the screw located in the center, but note that the thread there is left, so you have to turn it clockwise, this is done specially so that during operation it does not open under the influence of centrifugal force.

Next, using a screwdriver, disassemble the head and take out the reel, on which the fishing line is directly wound. Having measured the necessary length and folded in half, you need to fill the fishing line into the reel, removing, in the end, its ends opposite each other (for this there are special slots for fixing).

How to Swap a Coil for a Husqvarna Trimmer

After that, it is necessary to assemble the head in the reverse order by threading the ends of the cord into two corresponding holes.

If you have doubts or it’s not entirely clear how to charge the fishing line to the trimmer, we recommend watching the video: how to wind the fishing line into the lawn mowing properly. In this video, the instructor will open the trimmer head in steps, measure out the required amount of fishing line, usually from two to four meters, and demonstrate assembly and installation on the trimmer.

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How to refill a fishing line in a trimmer so that working with it does not tire

Many summer residents use a trimmer. a scythe with an electric or gas engine to control weeds. It is convenient when working in places inaccessible to the lawn mower: at fences, flower beds, houses, in the garden on narrow aisles, and can cut small branches. The main element of this wonderful technique is an ordinary fishing line wound on a reel. The device is simple, but the cutting part wears out quickly, requires replacement. And the question of how to fill the line in the trimmer worries many owners of cottages.

Briefly about the fishing line

Depending on the models of the tool, the thickness of the fishing line is 1.2-4 mm. There are such configurations:

  • round. the most durable;
  • curly. for soft grass;
  • twisted or notched. for thin grass;
  • professional, not suitable for all instrument models.

When replacing the cutting thread, you need to choose the one that suits your type of trimmer. Preference should be given to specialized. Before filling the fishing line into the trimmer coil, it is better to soak it for half an hour in water. Then it will become more elastic and stronger.

How to Swap a Coil for a Husqvarna Trimmer

How to quickly remove a coil from a tool

Before the thread is wound on a bobbin, it must be removed. over, the removal methods depend on the features of the tool. On trimmers with a motor near the ground, the spool has two side buttons, when pressed, a part of the housing is separated along with a thread winder.

On instruments with a bent rod, the lamb on the fixture is moved counterclockwise; having disconnected it, they remove both the bobbin and the spring inside it. On trimmers with a direct bar, fix it with a screwdriver, rotate clockwise and remove. Then the device is disassembled either using latches, or by moving its parts in different directions. The spring is taken out of the coil.

How to Swap a Coil for a Husqvarna Trimmer

Refueling the fishing line with a trimmer

The main question is how to wrap the fishing line on the trimmer coil, fixing it securely there?

In the case of a device with one antennae, up to four meters of fishing line is unwound, inserted into the hole inside it, fixing the fishing line, one of its ends and moved in the direction indicated by the arrow. The edge of the thread is fixed in the groove inside the bobbin so that when it is assembled, it does not unwind. If there is no groove, then this free end is fixed with a finger. Then the coil is assembled.

How to refill the trimmer coil if it has two antennae? In this case, check how many grooves are on it. one or two. In the first case, both antennae are sent to the common groove, if there are two, then each of them. in its own. 2-4 meters of thread are passed through the hole so that the free edges of the thread are the same length, and twist the bobbin in the direction of the arrow. The ends of the thread are inserted into the grooves or held with a finger, assemble the device and attach to the trimmer.

In a spool with two grooves, the same piece of thread is folded in the form of a loop, sent to the groove between them and the ends are wound at the same time. Then repeat the previous assembly. With semi-automatic winding, the bobbins act as follows. The fishing line is passed through the hole inside, its ends are fixed in the holes on the body, collect it and press the button. In this case, the thread is easily wound in the right direction.

It is important to remember that the cutting surface must be protected from solid objects so that it does not wear out. Otherwise, it will be necessary to constantly stop and, having removed the bobbin, replace the spent fishing line. Let your work be not tiring and bring joy!

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How to Wind a Husqvarna Trimmer Coil

How to wind the line on trimmer coil, if you haven’t done it before. Learn from the article how to win line to trimmer coil

Many, having developed a factory fishing line on a trimmer not so long ago obtained, try to rewind the latest, but they cannot, because they do not know how to wind the line onto the reel spool (bobbin) correctly. As if the annotation is, but still does not work. Let’s try to deal with this issue in this article.

So that win line, it is necessary, for starters, to remove the coil from the trimmer so it will be more convenient. Cord for trimmer rating. The removal method will depend on the type of trimmer.

Remove the coil from the trimmer

On small electronic trimmers with the bottom position of the motor (when it is when working near the ground), the coil usually has two buttons at the edges. Click on them and disconnect one half of the coil body from the 2nd, which remains on the trimmer. Together with the first half, the inner part, on which the fishing line is wound specifically, is removed. Trimmer carburetor needle adjustment. When disassembling, be careful: inside there is a spring that can fly out and get lost.

On electronic and petrol trimmers with a straight rod and a reducer at its end (you can also install a knife on the trimmers besides the fishing line), we look for a hole under the coil, insert a screwdriver in it, for example, rotate the coil quietly until the screwdriver penetrates even deeper and the coil will lock.

How to wind a line onto a mowing head of a trimmer or lawn mowing machine

The video carefully shows how to reel fishing line on the reel trimmers or lawn mowers. Dismantling the Husqvarna trimmer motor. Refueling with mowing line.

manual lawn mower. Replacing fishing line in the reel.

In this video, I show how simple and easy to reel. fishing line on the reel manual lawn mowers without the help of others.

than 200 types of trimmers in one place at the lowest prices. Click and watch

Now, having removed and disassembled the coil, we proceed, in fact, to winding.

Winding process

If your coil is designed to work with only one antennae, then everything is very simple. It is necessary to rewind 2-4 m of fishing line (depending on the size of the reel), find the hole fixing the fishing line on the inside of the reel, stick one end of the line there and begin to reel the line in the direction opposite to the direction of rotation of the reel on the trimmer. On the inside of the reel, they usually indicate an arrow, in which direction to wind the line. After winding up the fishing line, we leave its small piece unmotivated to expose it. Interskol trimmer motor device. We fix this piece in a special groove located on the inside of the reel and created so that the fishing line does not unwind at the time of collection of the reel. If there is no such groove, then you will have to hold the fishing line with your finger to prevent it from unwinding during the upcoming collection of the reel. Next, take the outer part of the reel and thread the outer piece of fishing line into the existing hole, collect and put the reel back on the trimmer.

If coil created to work with 2 antennae, then do the following.

If there are 2 grooves, we fold the piece of fishing line 2-4 m long in half, insert the loop obtained at the bend point into the groove between the 2 grooves, and immediately wind both ends of the fishing line each in its own groove. Refueling fishing line into the reel of the trimmer video. Subsequent acts are similar to the previous version.

There are still reels in which the line is threaded through the through hole on the inside, the ends of the line, without winding, are completely passed through the holes on the outer casing of the reel, the reel is assembled and the button is pressed, which is usually pressed to release the line through the extent of its wear.

That’s all for the matter. Good winding!

How does the trimmer work?

The principle of operation of such a device is that the grass is mowed by a special fishing line mounted on a rapidly rotating head. The number of revolutions per minute can reach 8000. For a short time, the fishing line becomes unusable, or rather, it is erased. Then the summer residents the question arises: "How to fill the fishing line into the trimmer coil"?

Types of woods for trimmer

First of all, in order not to resort to frequent replacements, it is better to use a denser fishing line. The number of its types and manufacturers is simply amazing. The main parameter of the fishing line for the trimmer is its diameter. It varies from 1.6 to 3.2 mm. The most common type is a 2 mm fishing line. However, it must be selected depending on the type of trimmer you have.

There are several options for the cross-section of the line. So, it can be round, square, in the form of an asterisk with sharp edges. The most effective is the last option. However, it should be used only on powerful braids and you need to know how to fill the fishing line into the trimmer coil. Therefore, we can conclude that the more powerful your lawn mower, the fishing line should be thicker.

Such a process as winding fishing line on a trimmer is not complicated, but has its own characteristics. First you need to choose the right fishing line, the diameter of which is registered in the passport of the device.

To begin, unscrew the cover of the coil. Be careful, as the thread can be left and right. The left-hand thread is necessary so that the braid head does not unwind during operation.

Refueling the fishing line with a trimmer

Before filling the fishing line into the trimmer coil, measure 5 m from the skein (as many fishing lines are installed on the trimmers on average). Then fold it exactly in half to find the middle. The resulting center must be inserted into a special slot, which is located on the coil. After that, wind the fishing line in the direction of the arrow that is on the head.

There are such models in which the place of winding is divided into two halves. Therefore, one is often wound clockwise, and the second against. After winding the fishing line completely, its ends are threaded into special holes. The cap is put on top of the head.

From the above it follows that the process of replacing the fishing line itself is not complicated. Having performed such a manipulation as winding fishing line on a trimmer reel several times, you will bring this process to automaticity. The only thing is to constantly monitor the condition of the fishing line, in order to avoid its rupture at the time of work on the site, when the spare skein may not be at hand.

Now you know how to fill the fishing line into the coil of the trimmer, and you can do it yourself without much effort!

Types of Trimmer Heads

The grass mowing head is a cylindrical body in which a reel (bobbin) with a fishing line (cord) tucked into it is inserted. This design can be installed on both gasoline and electric trimmers. The heads differ in the method of filling and feeding the cord and there are 3 types.

    Automatic. Cord feed is performed after the user reduces engine speed. Although automatic feeding of fishing line is convenient if large volumes of work are performed, such bobbins have one drawback. high thread consumption.

Based on the above, semi-automatic bobbins are the best option. It should also be borne in mind that the coils for the trimmer are single-string (used only for trimming grass) and double-string, which are used to mow tall grass and small, with thin stems of shrubs.

How to remove and disassemble the coil

Before starting the process of replacing the cord, users of trimmers need to remove and disassemble the coil. Consider how to do this.

The mowing head of the trimmer consists of several parts: casing, springs (not on all models), bobbins with cord and covers.

Attention! Before proceeding with any maintenance of the electrical unit, it must be disconnected from the mains.

In trimmers, 2 options for attaching the mowing head are most often used.

Option number 1

To remove the trimmer head, you will need it complete disassembly.

Option number 2

In this embodiment, the head is screwed onto the gear shaft. To take it off, you need this lock the shaft. To do this, in such trimmers, for example, in Huter and Champion devices, a hole is provided through which you can insert either a thin screwdriver or a metal rod.

So, to remove the bobbin, follow 2 simple steps.

  1. Insert a screwdriver into the hole and lock the shaft.
  2. Grasp the head housing and start twisting it clockwise. Turn in this direction for the reason that the thread cut on the shaft is left.

Fishing line winding algorithm

Depending on which trimmer model is used, the type, thickness and length of the fishing line are selected. The diameter of the cord can be from 1.2 to 4 mm. It is not difficult to guess that the thicker you fill the cord, the more rigid and thick grass it can cut.

In most cases, a universal fishing line with a diameter of 2 mm is used.

There are 3 ways to find out what diameter of fishing line can be used on your mower.

  1. View information about the thickness of the cord in the instructions for the device.
  2. Look at the bobbin itself. It can be marked with information about the possible diameters of the fishing line.
  3. Insert the fishing line into the outlet. If it easily passes into it, then a cord of this diameter can be used.

The line is wound on a reel located in the mowing head. Therefore, you must first open it (this was discussed above). There are 2 ways to wind the cord.

First way

In order to correctly determine how many meters of fishing line is needed for a particular reel, it is necessary to wind it on a bobbin so that the coil does not exceed the diameter of the sides. If the fishing line peeks over the edges of the reel, you cannot insert it into the casing. After you have decided on the length of the material, it must be loaded into the bobbin, so do the following.

  1. Necessary fold the fishing line in half, so that one end of it is 10-15 cm longer from the other.
  2. Please note that the bobbin is divided into 2 parts by the central side, from which charging begins. Find a groove on it and insert a cord bent in half into it, with a little effort.
  3. It is very important to identify, in which direction is the fishing line wound to the reel. If you look closely, you can find an arrow on the bobbin or an inscription with an arrow indicating in which direction the winding should be carried out. There are times when there is no arrow on the reel. In such a situation, you can look at the arrow drawn on the mowing head and wind the cord in the opposite direction.
  4. Winding should be carried out carefully, coil to coil, with maximum thread tension.
  5. After the laying of the cord is completed, you will need to first fix the short end of the fishing line by inserting it into a suitable diameter groove on the side of the reel.
  6. The second end, the one that is authentic, is mounted in a groove on the opposite side of the bobbin.
  7. After fixing the fishing line, cut off its ends, leaving allowances of about 10 cm.
  8. Next, you need to install a seasoned coil in the mowing head. To do this, by inserting and pulling the thread into the outlet openings of the head, place the bobbin in the casing, and then, after applying the required force, pull the fishing line out of the fixing grooves and tighten it.
  9. Now you can put on the cover and fix it with latches.

Second way

In some coils, a second method of securing the cord is provided: 2 pieces of thread can be charged, instead of one folded in half. Replacing the fishing line occurs according to the following algorithm.

Video: How to Wind a Husqvarna Trimmer Coil


  1. Before changing or charging a new thread into a spool, determine how many meters it will be required in the manner described above.
  2. Bend one end of the cord in the form of a hook.
  3. Locate the hole at the bottom of the bobbin to secure the fishing line, and insert the end of the thread bent in the loop into it.
  4. It is required to wind the cord according to the direction of the arrow to the required level not exceeding the diameter of the coil.
  5. Do the same for the second bobbin slot.
  6. Assembling the head is no different from the method that was given when refueling the bobbin was considered with a doubled piece of fishing line.

For Shtil lawn mowers There is a very simple and quick way to replace the fishing line without disassembling the mowing head, which you can familiarize yourself with by watching this video.

The ends of the cord sticking out of the holes in the casing can be cut to the required length already when the part is installed in the trimmer. There are two ways to do this:

  • turning on the trimmer (during rotation, the ends of the fishing line are cut off on a knife fixed for this purpose on the protective cover);
  • by cutting off the excess ends with scissors so that they do not touch the housing body.

The second method is used if it was necessary to put a cord of large diameter, and a cutter cannot shorten it.

If the thread was charged into the mowing head, but the length of the protruding ends of the cord is insufficient, then they must be lengthened before starting the machine. this applies to the head with manual adjustment. However, there are cases when using a semi-automatic mowing head, when due to the insufficient length of the protruding ends of the cord, they do not automatically extend. In this case, it is necessary to turn off the unit (it is absolutely necessary to pull the plug out of the socket on the electric apparatus), manually press the button located at the bottom of the part, and pull out a little fishing line. After this procedure, the cord will again be able to extend due to centrifugal force, if you set the maximum spindle speed.

No matter what thickness you put the line, you should remember: in order not to interrupt the work and not change the cord, you should avoid areas where the working tool can touch hard surfaces (stones, curbs, thick dry branches, etc.).

What can be used instead of fishing line

Many users of trimmers are wondering: what can replace the default cord used in this kind of apparatus? They begin to conduct unsafe experiments by installing metal or copper wire, metal cables or strings, as well as ordinary fishing line in the mowing head.

If set instead of fishing line metal cable, then the trimmer turns into a dangerous device not only for the user, but also for others. This fact is explained by the fact that during operation of the unit, the steel cable will gradually work, its ends will unravel, and small pieces of wire will fly apart in different directions at high speed.

A similar thing happens when using steel or copper wire, only with the difference that the pieces that come off will be larger and can cause serious injury.

How to Wind a Husqvarna Trimmer Coil

And if you accidentally hook your own or someone else’s foot while operating the machine with a steel cable (wire), then a strong and deep cut of the tissues, and in some cases amputation of your toes, is provided. It is not in vain that the manufacturer uses nylon for these purposes, since it is quite light and durable, and when detached it does not fly away and cannot cause injury.

Use fishing line in the trimmer instead of the standard one, of course, it is possible, but this will add you unnecessary trouble, because it wears out quickly, breaks, mows slowly and is not suitable for cutting hard grass. In addition, during the work, a lot of time is lost in order to replace a broken tool more than once.

In practice, the installation of an ordinary fishing line is justified if the user is going to mow the grass near the fence, especially if he is from a netting net. In this case, in order to protect the standard, and sometimes expensive cord from wear, it is changed to a fishing line, which is not AL-KO. Usually, in order to change the cord to the fishing line, it needs to be selected with the greatest thickness. 2-3 mm.

Replacing fishing line with a disc or knife

When refining a garden plot, park areas and other places where it is necessary to mow various kinds of plants, it is often necessary to change the cutting tool in the trimmer. This is dictated by the fact that the standard cord installed in the mowing head can only cope with herbs. But when a shrubbery or young shoot of trees appears on the way of the worker, the line cannot cope with such a task, and it needs to be replaced with a more effective cutting tool.

Manufacturers of trimmers provided such situations, and supplemented their products with a mass of nozzles in the form of knives with several “petals” or in the form of disks similar to circular saws.

If you replace the fishing line with a knife with several “petals”, then with such a tool you can mow both tall grass and plants with thick and dry stems. And changing the fishing line to disk, the user has the opportunity to lawn mowers to cut shrubs or small trees.

Knives and wheels are installed according to the following algorithm.

  1. The first step is to remove it by locking the shaft, the mowing head (turn clockwise) or the nut with the boot if the unit has not been used yet.
  2. Set the saw or cutting knife so that they are put on a small ledge (bushing).
  • Install the fastener cover on top of the knife and screw the nut onto the shaft (counterclockwise).
  • Tighten the nut (counterclockwise) using a pipe wrench.
  • For a better understanding of the tool change process, you can watch this video.

    Fishing line problems

    Users of trimmers, both gasoline and electric, sometimes have problems with the cord. “Advanced” owners of mowers can easily cope with the difficulties encountered, understanding why this is happening, and for beginners, this is a problem that does not have a rational explanation. But in fact, everything is solved quite simply. The most common problems that happen with fishing line are as follows.

    Cord breaks

    If the line is often torn, the following reasons can cause it:

    • stones, small branches and other solid obstacles come across in the grass;
    • the user mows the grass right next to the fence, and if it is mesh, it breaks the “antennae” even faster;
    • poor quality of the cord (it is recommended to purchase high-quality);
    • the outlet openings in the mowing head are worn out, due to which the fishing line is erased against the sharp edges of the bushings and breaks off (a complete replacement of the part is required).

    High cord consumption

    Basically, a cord ends quickly if often pounding the ground with a semi-automatic head or push it down hard. The reel is unlocked, and the fishing line, lengthening, is cut with a knife. Another reason that the cord ends quickly is the improper use of the machine with an automatic head: when mowing, the user often drops engine speed. But as we remember, the automatic head is designed so that it is with each decrease in speed that a new portion of fishing line is fed, so it is quickly consumed.

    The thread does not hold

    It happens that the thread is unwound if in a semi-automatic head the spring has loosened. The fishing line is constantly extended and trimmed with a knife mounted on the casing, which increases its consumption. To check this, remove the cover and turn on the unit. If the fishing line “climbed”, then you need to replace the spring.

    Fishing line crashes

    The reason that the cord unwinds after starting the unit can also be the weakening of the spring inside the head. In addition, there are times when the mowing head scatters when the unit is turned on, and the spring installed in it is lost. Inexperienced users do not notice the absence of a spring and assemble this unit without it. Therefore, the cord does not hold, and flies out under the influence of centrifugal force.

    The cord does not feed, the coil does not spin

    An automatic or semi-automatic head should feed the line without stopping the unit. But if it does not come out, then the reasons may be the following:

    • incorrectly wound fishing line in the reel, because of which the latter does not spin;
    • the cord is wound unevenly, and the thread can get stuck between turns (the thread should be wound carefully, turn to thread, without distortions);
    • too short ends of the thread come out of the holes, as a result of which there is not enough centrifugal force to extract them, and the fishing line is not supplied (it is recommended that the cord length is always adjusted before starting the unit, pulling it slightly);
    • the fishing line stuck together (to be discussed later).

    The thread sticks together

    This trouble is most often due to use of low-quality cord. When the machine is operating, the trimmer head heats up, and the poor-quality fishing line in it melts, sticking together. Also, sintering of threads occurs when a fishing line meets a solid obstacle. In this case, a sharp braking of the cord occurs, after which it is pulled into the head, where it is attached. Some owners of the units recommend lubricating the cord with mineral oil or spraying it with silicone spray after winding on a bobbin. Others advise winding less thread on a bobbin. But it is better to immediately buy a quality product, in the manufacture of which the manufacturer took into account the head overheating factor, and the thread will not stick together.

    Spinning reel models and winding types

    Any fishing rod or spinning rod has a reel. There are 3 varieties of fishing reels. For each of them a special type of winding fishing line is provided. Since the reels have a different design, we will analyze how the line is wound on each of the listed types.

    Inertialess coil

    The main element responsible for the winding of the line is the logger. This is a metal loop with a roller, which makes circular movements around the spool when working with the handle. During the first turn of the spool, the logger winds the line in one direction, for example, in the upward direction, and in the second turn of the line, the line has the opposite laying direction. As a result, the fishing line spool is located crosswise.

    Installing fishing line on an inertialess reel has several methods. Each type of coil has its own winding method.

    This is the so-called taper of the winding:

    1. Cylindrical winding.
    2. Straight cone. Toward the front side of the spool, the thickness of the stacked fishing line is reduced.
    3. Inverse cone. The thickness of the fishing line gradually increases in the direction of the front edge of the spool.
    4. Chaotic winding. Fishing line is wound arbitrarily. This method of winding is inherent in inexpensive Chinese products.

    “Straight cylindrical” winding is obtained by installing two shims

    Initially, new coils are configured for cylindrical styling. Then, as necessary, each angler adjusts the styling method "for themselves." Taper adjustment is carried out thanks to special washers located on the axis of the spool. So, if jerking baits are used for fishing, then reverse cone winding is used. In this case, the washer is replaced with a smaller one or removed altogether.

    Baitcasting Reel

    The line should be wound around the multiplier so that there is a gap of about 1-2 mm to the edges of the spool. Since backing of this type is not used in coils, it is necessary to accurately calculate the amount of fishing line for winding. That is, it should not be enough.

    You can fill the cord or fishing line in such a coil in the following order:

    • The end of the line is threaded through the logger.
    • The fishing line is attached to one of the holes of the movable spool. You can also fasten the fishing line with a loop by wrapping the fishing line around the spool axis several times.
    • The reel is attached to the rod.
    • The line is passed through the right ring.
    • The friction brake is tightened.
    • It remains only to quickly reel the line on the spool, and then put on a leash. In order for the turns to fit tightly, it is necessary to create some tension on the fishing line.

    How to create a special knot for tying fishing line on a spool

    Inertial coil

    The fishing line is laid most easily on an inertial-type reel. It is attached to the spinning reel by a simple knot-eight or a double loop. Next, the desired amount of fishing line is wound. In the process of winding, you need to make sure that the turns lie evenly. Provide tension to the fishing line. The easiest way to do this is with an ordinary book. A fishing line is passed between its pages, which press it, creating the necessary tension.

    How to wind a fishing line

    We will analyze step by step how to wind an existing fishing line onto a spool of a reel. First you need to ensure the free flow of fishing line from the reel. To do this, you can use a screwdriver, a piece of thick wire or a regular pencil. It would be better if you do this work with an assistant. He will hold the makeshift axis with the bobbin, and you will reel the fishing line on the reel. The winding pattern is as follows.

    You need to thread the line through the passage spinning rings. You need to start fishing line from the upper ring. Then the fishing line must be tied on the spool. You can fix the tip of the fishing line with a regular noose-loop, or wrap it with adhesive tape or electrical tape. Reliable fastening is especially characteristic of a braided cord, as it tends to “slip through” at the beginning of the winding. After that, you can wind the line on the spool, lowering the logger.

    In the process of winding, it is necessary to ensure that the line lies with a slight tension. This will prevent the formation of loops.

    At the final stage, all the gear should be adjusted. You need to attach a leash to the main fishing line that will be used for fishing. You can fix the leash to the main fishing line in different ways. Most often, anglers do this with a winding ring and carbine. The ring is fixed on the main fishing line, and the carabiner is attached to the leash. The bait leash can be replaced at any time.

    The process of winding fishing line on a reel

    What is backing?

    This term applies only to non-inertia reels due to the specific winding of fishing line on them.

    It often happens that the fishing line on the spool is not wound enough. For example, the spool is large, or the line is too thin. It seems that they used all 100 meters of fishing line, and 5 or more millimeters remain to the sides of the spool. In this case, the so-called backing is used, that is, the winding of the additional fishing line. Such a winding should be located at the very bottom of the spool. It performs only auxiliary functions, without taking part in the fishing process. But how to put it at the very bottom? To do this, remove the fishing line from the spool, and then install it on the other side.

    To replace, unscrew the clamping front nut and then remove the spool with fishing line from the reel. Instead, an empty spool is mounted on the reel. The line is rewound from one spool to another. Thus, the winding line is at the very bottom of the spool. If you do not have a spare spool, then use an empty reel from under the fishing line.

    Winding reels using backing

    How many fishing lines to reel

    How much fishing line do you need to recharge on a spool of reel? Experienced anglers always winding fishing line is not as long as it will be necessary for casting, but with a large margin. This is necessary to insure against possible cliffs. Also, if a braided cord is used, at the end of the season you can swap the sides of the cord by rewinding it to the other side. This will save costly consumables.

    Usually on each reel the quantity of fishing line of a certain thickness, which the spool can accommodate, is indicated. Usually, even a few values ​​are written. For example, "0.25 / 200 0.30 / 150 0.40 / 100".

    Tip: so that during the casting process the line does not self-reset from the spool of the inertialess coil, do not bring the winding to the very edges of the spool. It is recommended to leave a gap of 1 to 3 mm. A gap of more than 5 mm will create difficulties with casting range.

    Spinning line from the popular manufacturer Shimano

    If you want to wind a certain number of meters, you need to calculate how long the fishing line is 1 turn of the spool. After that, you can roughly calculate how many revolutions of the handle you need to do to wind a certain amount of fishing line or cord. But keep in mind that the number of revolutions of the reel handle never matches the number of turns of fishing line on the spool. For example, in most inertialess reels, the line will make 5 turns with one turn of the handle.

    Instead of a conclusion

    We figured out the issue of winding fishing line or braided cord on a spinning reel. Guided by this information, you can easily put the right amount of fishing line on the spool. If necessary, you can use backing if the fishing line on the spool is not enough. If everything is done correctly, then you can only rejoice at distant and accurate casts.

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    How to Adjust Carburetor On Husqvarna 435

    Modern chainsaws have a complex system and consist of several main components, which periodically require maintenance and adjustment. In this article, we’ll talk about how to adjust the carburetor on a Husqvarna chainsaw.

    When does the Husqvarna chainsaw carburetor require adjustment

    There are many problems that can be solved by adjusting the carburetor. Husqvarna chainsaw carburetor adjustment is necessary when a malfunction occurs such as:

    • increased idle;
    • heavy smoke during tool operation;
    • difficulty starting a cold or hot engine;
    • lack of traction and lower maximum revs.

    This is by no means a complete list of problems that can be solved by tuning the Husqvarna carburetor. In some cases, adjusting the quality and quantity of the fuel mixture is carried out after an overhaul of the engine or in the process of scheduled maintenance of the chainsaw.

    The manufacturer Husqvarna AB recommends adjusting the carburetor before and after the break-in.

    The device and principle of operation of the Husqvarna carburetor

    To successfully set up a Husqvarna chainsaw carburetor, you need to know its device and understand how it works. In fact, everything is not as complicated as it seems at first glance.

    How to Adjust Carburetor On Husqvarna 435

    The saw carburetor has a built-in fuel pump, which is responsible for transporting a mixture of gasoline with oil, as well as a diaphragm, a needle valve with a rocker. Their joint work allows metering the fuel supply to the main chamber and two shutters.

    How to Adjust Carburetor On Husqvarna 435

    One of the dampers is designed to adjust the fuel supply to the cylinder when pressing the gas, it is called the throttle, the second is responsible for restricting the air supply from the air filter to facilitate the start of the Husqvarna cold chainsaw. At that moment, when the operator shuts off the air supply to the carburetor with the help of an air damper, the fuel mixture is depleted and its supply to the cylinder is increased, due to which the chainsaw starts up much easier than when the cold start is carried out in normal mode.

    An injector valve is involved in the operation of the Husqvarna carburetor, which atomizes the fuel and prevents air from entering the main chamber. Often problems when working with a saw can be caused by defects in this particular element. For example, a valve, if the chainsaw is not stored properly, can stick, fuel supply will stop, which will make the engine impossible. Also, malfunctions of the nozzle can cause air to leak into the main fuel chamber of the carburetor. In such cases, adjusting the position of the adjusting screws will not correct the situation; repairs or replacement of the assembly will be required.

    For adjusting the quality and quantity of the mixture, as well as the number of revolutions of the crankshaft in idle mode, there are three adjusting screws installed in the carburetor body:

    How to Adjust Carburetor On Husqvarna 435

    • screw (L). adjusts the amount of fuel in low and medium speed mode;
    • (H). responsible for traction at high speeds and their number;
    • (T). changes the position of the throttle valve, thereby regulating the amount of fuel mixture entering the cylinder and the engine’s engine idling.

    Screws (L) and (H) cannot be adjusted without specific knowledge and experience. Incorrect adjustment of the quality and quantity of the fuel mixture can cause the engine to stop working or malfunction, which will lead to its rapid deterioration or even jamming.

    Video: How to Adjust Carburetor On Husqvarna 435


    Tools necessary for work

    Before setting up the Husqvarna carburetor, you need to take care of the availability of all the tools that may come in handy. To carry out this type of work yourself, you will need:

    An ordinary slotted screwdriver is not suitable for adjustment, because the adjustment screws on Husqvarna chainsaws can have a different cross-section. You have to purchase a special one, this is the peculiarity of repairing Husqvarna chainsaws, they did everything so that the saw could be repaired only in a specialized Husqvarna service.

    Husqvarna carburetor algorithm and description

    Husqvarna carburetor, is regulated similarly to how carburetors are adjusted on chainsaws from other manufacturers.

    Immediately before the adjustment, it is necessary to conduct a complete diagnosis of the saw and make sure that there is no difficulty in supplying fuel and air intake into the crankcase of the chainsaw. You must also make sure the air filter is clean and replace it with a new one if necessary.

    The procedure for the work is as follows:

    1. Husqvarna carburettor factory settings are set on the muffled saw.
    2. The engine starts and the saw warms up for several minutes.
    3. By turning the screw (L) clockwise, there is a position at which the engine develops maximum speed, after which the screw must be turned back 1⁄4. If at the same time the chain of the chainsaw rotates, then it is necessary to reduce the idle speed by adjusting the position of the screw (T).
    4. The next stage is the adjustment of the power of Husqvarna at maximum speed and the adjustment of their number. To do this, the tachometer is connected to the wound chainsaw, the throttle stick is squeezed to full, after which the tachometer readings are checked. If the maximum speed value differs from the maximum quantity recommended by the manufacturer, then by changing the position of the screw (H), the tachometer readings are normalized.

    Adjustment nuances

    After adjustment, the chainsaw should easily gain and lose speed, work stably at low and high speeds. If the saw chain rotates at idle after adjusting the carburetor control screws, this is a sign that the setting is incorrect and that the position of the screw (T) needs to be adjusted.

    Also, when adjusting the Husqvarna carburetor, it is worth considering the response time of the chainsaw to the rotation of the screws. Settings do not change immediately, but within five, ten seconds.

    One of the indicators of incorrect adjustment is a strong smoke during the operation of the saw, which indicates a large amount of fuel entering the combustion chamber. If this situation arises, adjust the position of the screw (L).

    Factory settings

    The factory default settings for the Husqvarna carburetor are the position of the screws (H) and (L), in which a working chainsaw must be guaranteed to start. For Husqvarna tools, this is one and a half turns from fully tightened screws (H) and (L). In the process of adjustment, you must first set the screws in the standard position, then start the chainsaw and make an accurate adjustment of power, the number of maximum revolutions and idle revolutions.

    DIY carburetor repair

    If during the complete diagnosis of the Husqvarna chainsaw, carburetor defects were detected, some of them can be eliminated without contacting the Husqvarna AB service center. For example, you can independently:

    • change gaskets under the covers of the main chamber and fuel pump;
    • clean or replace the strainer;
    • replace the diaphragm or needle valve of the main chamber;
    • repair the diaphragm of the fuel pump.

    Gaskets, diaphragms and a needle valve with a rocker arm can be found in the repair kit that is available for each model of Husqvarna chainsaw carburetors.

    How to Adjust Carburetor On Husqvarna 435

    Also, if you have some experience, you can try to restore the faulty valve-nozzle, but you cannot guarantee a positive result when trying to restore the nozzle, if it is faulty, manufacturers recommend changing the carburetor completely.

    The first thing to do before removing the carburetor from Husqvarna is to clean the saw with a compressor, since dirt can interfere with a quality repair. Next, you need to open the top cover of the chainsaw, remove the air filter, disconnect the rods from the control levers of the air and throttle valves. After that, unscrew the screws securing the carburetor.

    Dismantling the carburetor body for repairs is quite simple. The cover of the main chamber is held by four screws, which can be removed using a conventional screw, the cover of the fuel pump is fixed with one wide screw.

    Below is a video, watching which it becomes clear how it is possible to repair a carburetor without contacting a Husqvarna service center.

    Output

    Work on setting up or repairing a carburetor on Husqvarna chainsaws can be completed without any specific experience. In order to do everything right, you must follow the algorithm and have a minimal set of tools. It is also worthwhile to evaluate your strengths in advance and not risk it if you do not understand anything at all in technology. Believe me, sometimes it’s better to pay a small amount to the master than to spoil the instrument by self-regulation.

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    How to Properly Dilute Husqvarna Trimmer Oil

    The chainsaw engine is the "heart" of the tool, so it is very important to use a properly prepared fuel mixture.

    How to Properly Dilute Husqvarna Trimmer Oil

    Fuel mixture for a chainsaw It is prepared from two components. oil and gasoline. Chainsaws are equipped with two-stroke engines, so the oil is not added to the lubrication system (like a four-stroke engine), but directly to gasoline. In this case, it is very important to observe the correct proportions of the ingredients, of course, in no case try to work on clean gasoline, because in this way you will very quickly “kill” the chainsaw.

    How to Properly Dilute Husqvarna Trimmer Oil

    If we talk about which gasoline to pour into a chainsaw, it will optimally use fuel with an octane rating A-95, in this case, fuel economy can turn out disastrously. Often, European manufacturers indicate that you can use A-90 or A-92 gasoline, but in post-Soviet countries the quality of gasoline is inferior to European, so in our realities it is better to use better gasoline.

    How to Properly Dilute Husqvarna Trimmer Oil

    As for the most proportions of a benzo-oiled mixture, then everything is simple: you must follow the instructions for the tool. All manufacturers of chainsaws indicate the required ratio in the instruction manual or in the instrument passport, in addition, the proportions for refueling the chainsaw may differ depending on the model of the chainsaw. As a rule, the proportion of oil and gasoline to the chainsaw of famous manufacturers is a ratio of 1:40 or 1:50, which means 1 part of oil for, for example, 40 parts of gasoline. Now arithmetic 1 liter of gasoline = 1000 ml of gasoline, divide by 40 and get 25 ml of oil. If you perform the same steps to the ratio 1:50, then we get 20 ml of oil per 1 liter of gasoline. As for budget-made chainsaws made in China, the situation is slightly different. The ratio of gasoline and oil for chainsaws made in China 1:25, that is, 1000 ml of gasoline divided by 25, we get 40 ml of oil. The thing is that in branded chainsaws a good assembly and the distance between the pistons and cylinders in the engine is much smaller than that of Chinese chainsaws, therefore the required amount of oil differs almost twice.

    Video: How to Properly Dilute Husqvarna Trimmer Oil


    In order to measure the correct portion of oil, use an ordinary medical syringe of sufficient volume.

    How to Properly Dilute Husqvarna Trimmer Oil

    Another subtlety. in a dry canister for gasoline, first fill in gasoline, and then oil. The procedure, on the contrary, is fraught with a poor quality fuel mixture, because the oil is more dense, sticks to the bottom of the canister. what a good mix.

    Be sure to prepare the fuel mixture in a can and pour ready-made special fuel into the gas tank! Never cook or mix directly in the fuel tank of a chainsaw!

    If the question of how to breed gasoline for a chainsaw figured out, then on storage conditions and shelf life of the fuel mixture It is worth saying a few words. It’s best and easiest to cook a 1-liter gasoline-oil mixture, it is recommended to do this immediately before working with the tool. The fuel tanks of chainsaws have a volume of 0.3 to 1 liter. In domestic use, in one session, the entire volume of the prepared combustible mixture is rarely used, so the remainder can be saved until the next session. It is necessary to store the fuel mixture in a special canister for gasoline, in a dry, dark place. It is optimal to calculate that shelf life of the finished mixture will be 7-10 days. The fact is that the oil currently on the market is not synthetic, but organic, that is, natural. After 10 days, all lubricating properties are lost, gasoline simply “eats” the oil. Naturally, it is no longer possible to use such fuel, this can cause breakdown and failure of the chainsaw.

    How to Properly Dilute Husqvarna Trimmer Oil

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

    Unsuitable fuel mixture must be disposed of.

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    How to Remove a Husqvarna Lawn Mower Knife Adapter

    How to Remove a Husqvarna Lawn Mower Knife Adapter

    Trimmer Tuning (trimmer modernization) is a technical improvement of the trimmer, lawn mowers, lawn mowers or electric braids by replacing parts and assemblies with more expensive or improved ones, adding unusual parts and assemblies to the trimmer’s design, as well as better and more precise adjustment and adjustment of all nodes and systems for improving the technical characteristics and appearance of the trimmer.

    How to tune and upgrade the trimmer (read below for details)

    1. Starter electric (removable).
    2. Supporting a cup to protect and slide the trimmer head.
    3. Trimmer under carbon.
    4. Picture on defense.
    5. Airbrushing on the trimmer.
    6. Air filter zero resistance.
    7. Direct-flow muffler trimmers.
    8. Knives, suspension, overalls.
    9. Set to trimmer four stroke engine with a car muffler.
    10. Make two cylinder engine (two stroke).
    11. Enclose a noisy two-stroke trimmer motor in a sealed noise insulation capsule.
    12. Outlet trumpet from the muffler back to 60 cm.
    13. Attach the wide-angle rechargeable battery to the trimmer bar lamp for work in the dark.
    14. General the principles tuning trimmer.

    Electric starter for trimmer

    Trimmer electric starter (removable) for upgrading and tuning the trimmer. If you do not want to constantly pull the cord of the manual starter to start your trimmer, you can use one of 3 types of electric starters for the trimmer

    • battery starter
    • electric starter with cord and
    • electric drill starter through a special adapter (adapter).

    An electric starter for the trimmer is an optional accessory that is purchased separately from the trimmer. Also, its advantage is that it is removable and does not burden the trimmer itself during operation. The trimmer must be compatible with the starter, that is, your trimmer must have a socket for connecting an electric starter.

    Starting the trimmer engine from the electric starter takes a few seconds, starting the engine with the touch of a button and even starting the engine in poor technical condition. the manual starter tries to start in jerks, and the electric starter turns the engine until it starts (if it is possible to start it at all, of course).

    • The battery starter for the trimmer is powered by a lithium-ion battery, one charge of which is enough for 25 starts of the trimmer.
    • An electric starter for a trimmer with a power cord connects to a conventional outlet.
    • An adapter (adapter) with which you can turn any drill into an electric starter for a trimmer (for a trimmer compatible with the adapter).

    Video: How to Remove a Husqvarna Lawn Mower Knife Adapter


    Support cup for protecting and sliding the trimmer head on the grass

    Replace the button at the bottom of the trimmer head with a wide support cup, as shown in the video. This allows you to keep an even cut of the lawn, that is, the same height of mowing the lawn.

    The trimmer from the lawn mower is primarily distinguished by the fact that the lawn mower mows exactly the lawn, and it is difficult to keep the cutting height at the trimmer as the trimmer head swings up / down.

    Also, with such a cup under the trimmer head, you do not need to keep the trimmer head on weight (the trimmer head slides on the grass, copying the surface of the plot) and you should not be afraid to damage the trimmer head by hitting it with a solid stationary object (for example, a stone in the grass, a concrete fence post or about some kind of iron object).

    Carbon trimmer

    Upgrading the trimmer would not be complete if you did not touch on the appearance of the trimmer. In order to fundamentally change the appearance of the trimmer and make it look really cool, you can remove the engine covers, clean them and paste over with a carbon-colored self-adhesive film.

    Carbon. This is a composite material from the carbon fiber family, very light and very durable. It is used in aviation and expensive automotive industry.

    Drawing on protection

    You can apply the image to the plastic protection of the cutting equipment (metal knife or trimmer head). Protection has a significant area, which allows you to apply a fairly large image. This can also be attributed to tuning the trimmer.

    Airbrush trimmer

    A specialist in airbrushing can make your trimmer very beautiful and really cool. This is a powerful trim trim.

    Zero Resistance Air Filter

    The zero-resistance air filter provides the best filling of the cylinder with a fuel-air mixture, which increases the power, acceleration dynamics and revolutions of the trimmer motor.

    Line exhaust silencer

    Such a silencer is difficult to manufacture and is heavy, but a large silencer effectively removes smoke, roar and heat far back from the operator working on such a trimmer. At the same time, being a direct exhaust pipe, it does not create obstacles for exhaust gas exhaust, thereby contributing to a better release of the cylinder from exhaust gases and filling it with a fresh portion of the fuel-air mixture.

    Knives, pendant, overalls

    Trimmer tuning also includes the purchase of various cutting equipment for the trimmer (knives and trimmer heads). A more expensive belt suspension with a waist elastic belt, which partially removes the load from the shoulders of the operator and transfers it to the belt. As well as non-slip shoes, durable lightweight workwear, protective ear muffs, a face visor, anti-vibration gloves, etc. The trimmer setting includes these 8 elements to improve your trimmer, lawn mowers, lawn mowers or brush cutter.

    General principles of tuning

    1. Keep your trimmer, lawn mower, lawn mow clean (do not consider it shameful if necessary, wash the toiler with a brush with warm water).
    2. Do timely maintenance and minor repairs to your trimmer (keep it in good condition).
    3. Refuel only with high-quality imported gasoline at trusted gas stations (for example, A-95 Mustang gasoline at WOG gas stations).
    4. Only buy oil that is specified in the user manual of your trimmer (it is better to buy the original oil from your dealer).
    5. Consumables and accessories for the trimmer are also needed better. For example. a belt suspension with a lap belt, a set of different knives, expensive grease in the gearbox, heated handles, anti-vibration gloves, noise-insulating headphones with mp-3 player, cool safety glasses, etc.

    If you treat your trimmer with care and attention (during maintenance and the selection of consumables), then he will thank you for years with dashing and uptime.

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    Husqvarna 137 Is Not Gaining Speed

    Chainsaw owners sometimes have to deal with the fact that the saw, for no apparent reason, stops working normally. To understand why the chainsaw stalls under various operating modes, and also describe how to diagnose a malfunction, we will try in our article.

    Why chainsaw stalls when heated

    The situation in which a chainsaw starts up in the cold, and during heating can stall, is familiar to many who deal with them. The main reasons for this saw behavior are as follows.

    • Faulty ignition module (coil). You can determine the malfunction by checking the spark first on a cold engine, and then on a hot one. If there is no spark on a hot engine, then you should try to fix the problem by replacing the ignition coil.
      Husqvarna 137 Is Not Gaining Speed
    • The chainsaw carburetor has the wrong setting (pours a candle on a hot one). You can identify the problem by the way the saw starts up in the cold. If it is not necessary to close the air damper for a cold start, and the engine starts without a preliminary flash, then the fuel mixture is not formed correctly and after heating the engine, the fuel fills the candle and makes starting impossible. The problem is fixed by adjusting the carburetor.
    • Defective spark plug. In such a situation, similarly to a faulty ignition coil, a spark disappears when the engine is heated. It is worth trying to replace the spark plug with a new one, and if this does not help, then you need to check the ignition coil and the gap between it and the flywheel.
      Husqvarna 137 Is Not Gaining Speed

    You can check the ignition coil with a multimeter or by replacing it with a known working one. The multimeter checks the primary and secondary windings in the resistance measurement mode. The resistance index of the primary winding, the working coil, is 1 kOhm. secondary 4 kOhm.

    Why the chainsaw stalls under load

    In some cases, the chainsaw under load is unable to work normally and simply stalls. A common reason for this behavior is incorrect carburetor adjustment, or air leaks through the crankshaft oil seals or carburetor gasket. And also this behavior can occur due to leaking carburetor.

    Diagnose the cause and eliminate the fact that the chainsaw starts and stalls under load, it is best in the service center, because a special tool is needed to check the tightness of the carburetor and crankcase.

    The saw, unable to work under load, will also hesitate to maintain idle speed. They will "swim." Diagnostics begins with a leak test of the crankcase and carburetor. If air leakage is detected through the crankshaft oil seals, they must be replaced. If air leakage is detected in the carburetor, the cause can be eliminated by installing a repair gasket kit.

    Husqvarna 137 Is Not Gaining Speed

    Only after the above actions have failed and the engine crankcase with the carburetor are tight, you can proceed to adjust the carburetor.

    The reason for this algorithm is as follows: if the air intake from the crankcase has not been eliminated, and the carburetor has simply been adjusted before the engine is operating normally, the fuel mixture will contain more fuel than is required for a sealed crankcase, which in turn will significantly increase its consumption. Also, most likely, carbon deposits will appear in the engine, which will also adversely affect the further operation of the chainsaw.

    In some models of chainsaws, to ensure the operation of the fuel pump, special hoses are installed that transmit air impulse from the crankcase to the carburetor fuel pump. If this hose is frayed, the saw will idle and will not work under load at all.

    Video: Husqvarna 137 Is Not Gaining Speed


    Owners of household chainsaws HUSQVARNA 137 and HUSQVARNA 142 for any abnormal engine operation should first check the impulse hose, since this is considered the most common cause of breakdown of these chainsaws.

    A video showing how to replace a defective impulse hose with your own hands on a HUSQVARNA 142 chainsaw can be seen below. It steps through the process of disassembling the saw, shows the impulse hose and stipulates the consequences of its malfunctioning HUSQVARNA 142.

    Why the chainsaw is not gaining momentum and stalls

    If the chainsaw, one minute after start-up, is not capable of gaining speed or stalls when the trigger is pulled, the carburetor or engine crankcase is most likely leaky. As in the previous case, the problem can be solved by checking for leaks and adjusting the carburetor.

    If the chainsaw does not gain momentum and stalls after it has worked normally for about 5 minutes, the cause may be a defective fuel tank breather. The vacuum created in the fuel tank during the operation of the tool does not allow the engine to receive the necessary amount of fuel for its normal operation, and for this reason it will be unable to gain speed or stall. At the same time, if you stop the tool, open and close the fuel tank cap and start the chainsaw again, the tool will again work normally for about five minutes, after which it will stop gaining speed or stall.

    The reason that the chainsaw is not gaining momentum may be excessive soot in the muffler, which makes it difficult to exhaust the exhaust gas, thereby reducing engine power and speed.

    Husqvarna 137 Is Not Gaining Speed

    If you wish, you need to check the tightness of the crankcase, but the lack of a special tool, you can use the following test procedure.

    Crankcase leak check algorithm

    • Remove the side cover and tire from the chainsaw.
    • Unscrew the spark plug and lay the cord with the knots in the cylinder through the spark plug hole, thereby blocking the movement of the piston and crankshaft.
    • As a lace with knots, you can use the old cord from the starter, having tied knots on it after 3-5 cm.
    • Unscrew the drive sprocket for the chainsaw.
    • Remove the oil pump cover and the pump itself.
    • Remove the starter from the chainsaw.
    • Unscrew and remove the flywheel.
    • Remove the carburetor.
    • Using a syringe, pour gasoline into the crankcase through the hole for the carburetor in the cylinder, while observing the crankshaft oil seals. If gasoline flows through them, then the oil seals have become unusable and must be replaced with new ones.
    • It is better to entrust the installation of oil seals to professionals.

    An indirect sign of crankcase leaks are oil smudges in the oil seal area.

    Husqvarna 137 Is Not Gaining Speed

    Why the chainsaw starts and immediately stalls

    The chainsaw starts and stalls immediately, the reason for this behavior may be hidden in the carburetor. A malfunction of the fuel pump or a malfunction of the main fuel jet can cause this behavior of the saw. The inability to operate the chainsaw after startup requires a complete diagnosis at the service center.

    All of the above options for improper engine operation have similar causes, which, depending on their neglect, can have different manifestations. For example, with a slight suction of air into the engine crankcase, its operation will not change much, the engine power will drop slightly, its maximum speed will increase, and it will be able to warm up a bit more. In the middle stages of air leakage, the engine will stop idling and will become very hot during operation. A strong suction of air will make the saw impossible to work, it will start and immediately stall.

    In parallel with the visible manifestations of malfunctions, for example, the inoperability of the chainsaw after starting, inside the engine at the time of its malfunction, there will be processes that irreversibly lead the saw to the most serious consequences, for example, fusion of the piston, jamming of the crankshaft.

    Failures leading to malfunction of the chainsaw

    There are a number of malfunctions that must be taken into account in the diagnosis, because they can lead to interruptions in the saw.

    1. Worn crankshaft bearings. With worn crankshaft bearings, a beating on the main shaft where the flywheel is mounted is inevitable. In such a situation, it is impossible to adjust the gap between the flywheel and the ignition coil, which entails interruptions in spark formation, and unstable operation of the chainsaw.
    2. Impulse channel pollution. The pulse channel serves to ensure the operation of the fuel pump; accordingly, its pollution leads to improper operation of the pump, which will make the saw impossible to work (it will start and immediately stall).
    3. CPG wear. As a rule, with increased wear of the CPG, a decrease in compression in the chainsaw engine is observed, which will necessarily affect its ability to develop speed.
    4. Pollution of fuel and air filters.

    To summarize

    When the first signs of malfunction of the chainsaw appear, it is worthwhile to conduct a complete diagnosis. In order to avoid damage to the saw due to improper maintenance, it is better to entrust the work to identify and troubleshoot engine malfunctions to professionals. And most importantly, you do not need to use a chainsaw with minor defects, because this will lead to even greater problems.

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    Husqvarna Chainsaw 40 55 How to Adjust a Carburetor

    Husqvarna Chainsaw 40 55 How to Adjust a Carburetor

    Appointment

    According to its parameters, the saw is designed to solve everyday problems. Due to its low weight, compact size and low price, it was ideally suited for small jobs: cutting firewood, boards, cutting branches of trees, cleaning trees and shrubs on the site.

    By the way, the chainsaw was in great demand among road workers, due to its compactness and reliability. It was ideally suited for lengthy trimming of trees along city streets.

    The device of the chainsaw turned out to be very successful, the saw was incredibly reliable, the failure rate tended to zero. The first years of production, Husqvarna 137 did not occur in specialized chainsaw repair services.

    Despite the amateur class, the chainsaw has been and is still very popular with lumberjacks, as Ideal for small jobs when harvesting firewood.

    Husqvarna Chainsaw 40 55 How to Adjust a Carburetor

    Specifications

    The Husqvarna 137 is comparable in technical specifications to the Stihl 180 chainsaw. Each chainsaw had its dedicated fans. Each of the owners gave reasoned facts in favor of owning his saw, and was right. Both of them had their pros and cons. But, the Stihl 180 remained, and the 137th was replaced by the Husqvarna 236 chainsaw. This is the topic of a separate article, let’s move on to an overview of the characteristics of Husqvarna 137.

    Video: Husqvarna Chainsaw 40 55 How to Adjust a Carburetor


    Main technical specifications:

    • engine type: ICE, gasoline;
    • engine displacement: 36.3 cubic meters cm.;
    • engine power: 1,64 hp / 2.2 kW;
    • fuel tank capacity: 419 ml;
    • oil tank capacity: 200 ml;
    • tire length: from 33 to 38 cm;
    • chain pitch: 0.325 inches (8.25 mm);
    • weight: 4.6 kg.

    From the above characteristics of the engine and the saw headset (tire, chain) it can be seen that the chainsaw belongs to the amateur class. It is quite powerful and allows you to cut tree trunks with a diameter of up to 40 centimeters per hemp without much effort.

    For those who are still interested in hearing the opinion of a professional about comparing competitors’ chainsaws: Stihl 180 and Husqvarna 137, we recommend watching an interesting video.

    Reviews

    Reviewed by Vlad, experience in using 4 years, the city of Vladimir.

    Pros: lightweight, comfortable, can be cut from almost any position.

    Minuses: it turns out that they do exist, increased vibration, an unsuccessful position of the muffler, which is why sawdust constantly flies to its feet.

    DIY repair

    Husqvarna 137 is a relatively old chainsaw and many specimens already require repair: from basic adjustment or carburetor replacement to piston repair. To perform such complex work, you need to contact a specialized service center. However, if you have the desire and experience in repairing complex equipment, you can try to cope with certain malfunctions with your own hands.

    For an effective repair, you will need some skills and advice, we advise you to draw them from the presented videos.

    It is advisable to know the Husqvarna chainsaw device before disassembling it.

    It’s worth starting with disassembling and assembling, this is the main thing you need to know when repairing a Husqvarna 137 chainsaw with your own hands. The Swedes, making their saws, try to do everything so that their saws are difficult to repair somewhere other than a specialized service.

    The second and most popular is the carburetor adjustment of the Husqvarna 137 chainsaw. This process is no different from the setting of carburetors on other Husqvarna AB saws. All adjustments are made using 3 screws. About how to adjust the carburetor of the Husqvarna 137 chainsaw, which screw to turn, in which direction and how many revolutions, it is described in detail in the video, we recommend watching.

    Conclusion

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    How To Put A Spring On A Husqvarna Starter

    The starter is one of the most important mechanisms in the construction of any modern chainsaw. It depends on him starting the engine tool in all weather conditions. The starter for the chainsaw stands out with a simple design, it is easy to maintain and repair with your own hands. However, to fix the breakdown, you must first find its cause. To do this, most often you need to completely disassemble the regular mechanism.

    Chainsaw starter device

    As standard, the chainsaw starter consists of a number of parts.

    These include:

    • coil;
    • cable;
    • frame to which a return spring is attached;
    • a pen.

    A protective cover is installed over all starter elements. The initial principle of operation of most triggers is also almost the same. In a special groove of the chainsaw body there is a handle that holds the cable. With a sharp raising of the handle, the latter is understood. At this moment, the ratchet is triggered, which transfers the force through the drum to another drum with splines located on the motor shaft.

    How To Put A Spring On A Husqvarna Starter

    When the standard cable is pulled, the shaft of the chainsaw motor begins to rotate, which leads to compression of the existing fuel mixture located at this time between the cylinder head and the standard piston.

    With an increase in the volume of the ICE cylinder, the amount of fuel mixture consumed, which is required for its future ignition, simultaneously increases. Accordingly, the operator of a powerful saw needs to make more jerks than the owner of a household tool with low power. To increase the speed at which the drum returns to its original position, manufacturers of powerful chainsaws use elastic return springs.

    How to put a spring on a chainsaw starter?

    To place a spring in the corresponding groove is a rather difficult task. First of all, the part will need to be twisted, returning it to its previous dimensions. After that, it must be inserted into the cavity of the regular hub of the drum. To fill the spring in the starter of the chainsaw, you need to act in this order:

    1. The outer end of the used spring must be fixed in a special restrictive protrusion. In this case, the second end with a screwdriver will need to be installed opposite the regular hole inside the lock;
    2. Next, the loop located on the inner end of the standard spring should be aligned with the hole. To do this, it is better to use a screwdriver. With the ends aligned, the disc will need to be lowered;
    3. After mounting the disk, you need to check that the dog of the factory ratchet mechanism of the chainsaw stands in its regular place. Then you can assemble the ratchet in the reverse order.

    Video: How To Put A Spring On A Husqvarna Starter


    To wind the spring on the starter of the chainsaw, you must take into account all the holes and recesses. After installation, you will need to tension the spring. As soon as the slack is eliminated, the spring remains to be screwed a few turns. this is necessary to maintain the required tension of the installed part.

    How to assemble a starter on a chainsaw?

    After replacing the faulty starter elements, it is the turn of its reassembly. At the same time, maximum accuracy must be observed, since the slightest discrepancy can lead to breakdown of the trigger mechanism. Assembly of the node should be performed in the following sequence:

    1. The standard cable will need to be threaded into the factory hole of the coil. The cord, however, does not need to be wound;
    2. Next, you need to insert the coil into its base place. At this point, many beginners make a typical mistake. There are 2 slots on the surface of the coil. One of them should get a regular hook of a spiral spring. For this, the coil will need to be installed in such a way that it snaps firmly into its original place, and the existing hook is exactly in the slot. Correct installation should be checked by scrolling the coil in the direction of the clock until resistance appears;
    3. Then you need to install a lightweight chainsaw start device. In this case, the protrusion of the latter should be located in the recess of the installed coil;
    4. After that, you will need a screw and washer to fix the device;
    5. Next, the second end of the cord must be tucked into a special outlet;
    6. In the next step, you will need to thread the cable into the start handle. To this end, a medium-sized knot will need to be tied at the end of the cord. If it is too small, the cable will slip, because of which it quickly wraps around the trigger drum;
    7. Then you need to release the loop inside the starter. Immediately after this, start the rotation of the trigger in the direction of the clock. In this case, the cord does not need to be wound. Next, the coil will need to be fixed by hand, and pull the loop by the handle out;
    8. After that, you need to check the operation of the trigger;
    9. If the unit is working properly, it remains to install it on the tool and attach it with three screws.

    How To Put A Spring On A Husqvarna Starter

    Starter repair is not a complicated procedure if you follow the correct procedure. As a rule, replacing the starter cord will take no more than 20 minutes. The main thing is to correctly position the pulley and drum in relation to each other. Otherwise, the trigger will not work.

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    Factory Settings Carburetor Husqvarna 240

    Modern chainsaws have a complex system and consist of several main components, which periodically require maintenance and adjustment. In this article, we’ll talk about how to adjust the carburetor on a Husqvarna chainsaw.

    When does the Husqvarna chainsaw carburetor require adjustment

    There are many problems that can be solved by adjusting the carburetor. Husqvarna chainsaw carburetor adjustment is necessary when a malfunction occurs such as:

    • increased idle;
    • heavy smoke during tool operation;
    • difficulty starting a cold or hot engine;
    • lack of traction and lower maximum revs.

    This is by no means a complete list of problems that can be solved by tuning the Husqvarna carburetor. In some cases, adjusting the quality and quantity of the fuel mixture is carried out after an overhaul of the engine or in the process of scheduled maintenance of the chainsaw.

    The manufacturer Husqvarna AB recommends adjusting the carburetor before and after the break-in.

    The device and principle of operation of the Husqvarna carburetor

    To successfully set up a Husqvarna chainsaw carburetor, you need to know its device and understand how it works. In fact, everything is not as complicated as it seems at first glance.

    Factory Settings Carburetor Husqvarna 240

    The saw carburetor has a built-in fuel pump, which is responsible for transporting a mixture of gasoline with oil, as well as a diaphragm, a needle valve with a rocker. Their joint work allows metering the fuel supply to the main chamber and two shutters.

    Factory Settings Carburetor Husqvarna 240

    One of the dampers is designed to adjust the fuel supply to the cylinder when pressing the gas, it is called the throttle, the second is responsible for restricting the air supply from the air filter to facilitate the start of the Husqvarna cold chainsaw. At that moment, when the operator shuts off the air supply to the carburetor with the help of an air damper, the fuel mixture is depleted and its supply to the cylinder is increased, due to which the chainsaw starts up much easier than when the cold start is carried out in normal mode.

    An injector valve is involved in the operation of the Husqvarna carburetor, which atomizes the fuel and prevents air from entering the main chamber. Often problems when working with a saw can be caused by defects in this particular element. For example, a valve, if the chainsaw is not stored properly, can stick, fuel supply will stop, which will make the engine impossible. Also, malfunctions of the nozzle can cause air to leak into the main fuel chamber of the carburetor. In such cases, adjusting the position of the adjusting screws will not correct the situation; repairs or replacement of the assembly will be required.

    For adjusting the quality and quantity of the mixture, as well as the number of revolutions of the crankshaft in idle mode, there are three adjusting screws installed in the carburetor body:

    Factory Settings Carburetor Husqvarna 240

    • screw (L). adjusts the amount of fuel in low and medium speed mode;
    • (H). responsible for traction at high speeds and their number;
    • (T). changes the position of the throttle valve, thereby regulating the amount of fuel mixture entering the cylinder and the engine’s engine idling.

    Screws (L) and (H) cannot be adjusted without specific knowledge and experience. Incorrect adjustment of the quality and quantity of the fuel mixture can cause the engine to stop working or malfunction, which will lead to its rapid deterioration or even jamming.

    Video: Factory Settings Carburetor Husqvarna 240


    Tools necessary for work

    Before setting up the Husqvarna carburetor, you need to take care of the availability of all the tools that may come in handy. To carry out this type of work yourself, you will need:

    An ordinary slotted screwdriver is not suitable for adjustment, because the adjustment screws on Husqvarna chainsaws can have a different cross-section. You have to purchase a special one, this is the peculiarity of repairing Husqvarna chainsaws, they did everything so that the saw could be repaired only in a specialized Husqvarna service.

    Husqvarna carburetor algorithm and description

    Husqvarna carburetor, is regulated similarly to how carburetors are adjusted on chainsaws from other manufacturers.

    Immediately before the adjustment, it is necessary to conduct a complete diagnosis of the saw and make sure that there is no difficulty in supplying fuel and air intake into the crankcase of the chainsaw. You must also make sure the air filter is clean and replace it with a new one if necessary.

    The procedure for the work is as follows:

    1. Husqvarna carburettor factory settings are set on the muffled saw.
    2. The engine starts and the saw warms up for several minutes.
    3. By turning the screw (L) clockwise, there is a position at which the engine develops maximum speed, after which the screw must be turned back 1⁄4. If at the same time the chain of the chainsaw rotates, then it is necessary to reduce the idle speed by adjusting the position of the screw (T).
    4. The next stage is the adjustment of the power of Husqvarna at maximum speed and the adjustment of their number. To do this, the tachometer is connected to the wound chainsaw, the throttle stick is squeezed to full, after which the tachometer readings are checked. If the maximum speed value differs from the maximum quantity recommended by the manufacturer, then by changing the position of the screw (H), the tachometer readings are normalized.

    Adjustment nuances

    After adjustment, the chainsaw should easily gain and lose speed, work stably at low and high speeds. If the saw chain rotates at idle after adjusting the carburetor control screws, this is a sign that the setting is incorrect and that the position of the screw (T) needs to be adjusted.

    Also, when adjusting the Husqvarna carburetor, it is worth considering the response time of the chainsaw to the rotation of the screws. Settings do not change immediately, but within five, ten seconds.

    One of the indicators of incorrect adjustment is a strong smoke during the operation of the saw, which indicates a large amount of fuel entering the combustion chamber. If this situation arises, adjust the position of the screw (L).

    Factory settings

    The factory default settings for the Husqvarna carburetor are the position of the screws (H) and (L), in which a working chainsaw must be guaranteed to start. For Husqvarna tools, this is one and a half turns from fully tightened screws (H) and (L). In the process of adjustment, you must first set the screws in the standard position, then start the chainsaw and make an accurate adjustment of power, the number of maximum revolutions and idle revolutions.

    DIY carburetor repair

    If during the complete diagnosis of the Husqvarna chainsaw, carburetor defects were detected, some of them can be eliminated without contacting the Husqvarna AB service center. For example, you can independently:

    • change gaskets under the covers of the main chamber and fuel pump;
    • clean or replace the strainer;
    • replace the diaphragm or needle valve of the main chamber;
    • repair the diaphragm of the fuel pump.

    Gaskets, diaphragms and a needle valve with a rocker arm can be found in the repair kit that is available for each model of Husqvarna chainsaw carburetors.

    Factory Settings Carburetor Husqvarna 240

    Also, if you have some experience, you can try to restore the faulty valve-nozzle, but you cannot guarantee a positive result when trying to restore the nozzle, if it is faulty, manufacturers recommend changing the carburetor completely.

    The first thing to do before removing the carburetor from Husqvarna is to clean the saw with a compressor, since dirt can interfere with a quality repair. Next, you need to open the top cover of the chainsaw, remove the air filter, disconnect the rods from the control levers of the air and throttle valves. After that, unscrew the screws securing the carburetor.

    Dismantling the carburetor body for repairs is quite simple. The cover of the main chamber is held by four screws, which can be removed using a conventional screw, the cover of the fuel pump is fixed with one wide screw.

    Below is a video, watching which it becomes clear how it is possible to repair a carburetor without contacting a Husqvarna service center.

    Conclusion

    Work on setting up or repairing a carburetor on Husqvarna chainsaws can be completed without any specific experience. In order to do everything right, you must follow the algorithm and have a minimal set of tools. It is also worthwhile to evaluate your strengths in advance and not risk it if you do not understand anything at all in the technique. Believe me, sometimes it’s better to pay a small amount to the master than to spoil the instrument by self-regulation.

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