Husqvarna 137 DIY repair

Today, almost every owner of a private house or an advanced summer resident uses a chainsaw, which is highly mobile, unpretentious in operation and repair. Among the many models of gasoline vehicles and equipment on the market, the Swedish brand Husqvarna is worth highlighting. Founded 400 years ago, the Husqvarna company first produced weapons, and in 1959, in connection with the need to expand the line of products, launched the production of chainsaws. Unlike competitors, this manufacturer sought to improve the layout of the saw. To reduce the level of noise emitted by the engine, the famous designer from Sweden Sixten Sazon used a muffler in the Husqvarna chainsaw using the example of a motorcycle.

Almost all professional and amateur chainsaws are equipped with air-cooled two-stroke gasoline engines.

Chainsaw Husqvarna: main components

This assumes the presence of at least one cylinder with heat sink fins. The fuel supply system (carburetor) acts as a gasoline-air mixer. Dirt, dust, shavings should not enter the working combustion chamber together with the fuel mixture, and filters are installed on the saws to clean the supplied air. Manufacturers recommend changing the filter once a season. In the interval between replacements with a frequency of once for 10-15 fillings, it must be cleaned.

For convenience and ease of starting the internal combustion engine in any chainsaw, a starter is provided, which is a reel with a wound cable and a handle. Even the most powerful husqvarna chainsaw is equipped with an intelligent starting mechanism.

In order to reduce the vibration transmitted to the hands of the feller, a special device is installed on the tool. In addition, this mechanism prevents the tire from "pulling" when cutting wood.

Despite the fact that ideal chainsaws have not been created and it is unlikely that anyone will succeed, this Swedish company strives for design perfection and increasing the power of its models. The entire husqvarna range of saws are characterized by pleasant enhancements that make their owner's job much easier.

General view of husqvarna chainsaw

These positive options include:

• use of the fuel "suction" button (primer) for the convenience of starting the internal combustion engine;
• automatic adjustment of the carburetor by the Auto Tune system;
• side chain tensioning mechanism;
• environmentally friendly and powerful X-Torg engine;
• vibration reduction system;
• a mechanism for forced lubrication of the chain through a hole in the driven sprocket;
• centrifugal air purification Air Injection, which makes it possible to change the filter less often;
• universal key for service and repair.

In order to avoid the acquisition of fake Husqvarna chainsaws, it must be remembered that their licensed production is established exclusively in Sweden, USA, Russia, Brazil.

Regardless of the power, performance and size of the models, their problems are divided into 2 types:

1. Malfunctions of the engine, fuel supply system, cylinder-piston group, muffler;
2. Transmission breakdowns (malfunctions of the brake system, tire, chain, clutch, etc.).

Based on many years of experience, most experts say with confidence that mainly the causes of breakdowns lie in the operation of the internal combustion engine. The striking manifestations of the incorrect operation of the chainsaw motor include:

• difficult start;
• unstable idling;
• does not develop full power;
• extraneous sounds are heard during operation.

In order to reduce the complexity of diagnostics and subsequent repair of the Husqvarna chainsaw with their own hands, experts advise starting with simpler units and parts for maintainability.

The first step in ignition diagnostics is to check the spark plug. It must be unscrewed from the cylinder shaft with a special wrench or socket head. The gap between the side and center electrodes should vary from 0.7 to 1.5 mm.

Husqvarna chainsaw malfunctions

If this distance is exceeded, there will be a periodic absence of a spark. On the contrary, if the gap is too small, the discharge will not be sufficient for full ignition of the fuel mixture. You can set the recommended gap parameters using locksmith probes, which you can buy at any car store.

If there are traces of gasoline on the surface of the candle, then most likely it does not completely burn out. It is not necessary to look for the causes of malfunctions in the Husqvarna ignition system in the absence of moisture on the plug, since in this case it is necessary to adjust the fuel system, the steps of which are described below.

The most common types of ignition failures include improper clearance (more or less 0.2 mm) between the flywheel and the ignition coil. It can also be set independently by means of the probes.

The fuel supply system is one of the most difficult in the unit, and therefore it is worth taking it as seriously as possible and following certain rules. Gasoline may not flow to the carburetor for the following reasons:

- clogged breather (holes in the tank lid);

- the fuel filter is clogged with dirt.

To clean the breather, you need to prepare a regular sewing needle. In the second case, it will be necessary to dismantle the tank and replace the fuel filter.

Carburetor with adjusting screws

The entire range of the Swedish manufacturer is equipped with traditional carburetors with three adjustment screws:

1. Screw "T" - setting the mixture supply at idle;
2. Screw "L" - low speed adjustment;
3. Screw "H" - at maximum speed.

First of all, it is necessary to "find" the highest speed with the screw L in the absence of load (at idle speed). Then turn it counterclockwise by a quarter of a turn.

If, in this position, the chain on the bar continues to move, you need to achieve a stop by means of screw T.

Husqvarna chainsaw carburetor

To adjust the Husqvarna carburetor at maximum speed, after pressing the accelerator key for full, wait 10-15 seconds. Turn the screw "H" clockwise ¼ turn and listen to the operation of the internal combustion engine. If during engine operation there is an extraneous ringing "squeal", gradually unscrew the bolt until it disappears. On the contrary, in case of excessive smoke production, it is required to lean the mixture, gradually tightening the screw.

After setting the minimum and maximum revolutions, we adjust the saw idle. To do this, turn the screw "T" clockwise until the chain starts moving along the bus.

Correct tuning of the fuel delivery system requires a tachometer (a device for measuring revolutions per minute), as well as the experience of the owner.

The ICE starting system is used to turn the shaft and, as a result, the appearance of a spark and ignition of the fuel mixture. Like most models, Husqvarna's kick starter consists of:

Chainsaw starter Husqvarna

When the starter jerks, the drum ratchet engages with the engine shaft, as a result of which the crankshaft will rotate. Despite the condition of the tool, starting the engine the first time is quite problematic. To facilitate the start, it is required to make several presses of the primer (the button for pumping the mixture). A backup spring can be provided in the design of the starter, which, after being compressed by the main one, gives a sharp push to the shaft. As such, the repair of the starter is not provided, and if one of the elements breaks down, it will need to be replaced.

The cutting saw chain of this manufacturer consists of working teeth, depth stops, locking pins. The most loaded in the sawing process are the cutting links made of high-alloy structural steel. By design, they are divided into left and right-handed. The cutting width is determined by the distance from the side edges of the left and right links.

DIY husqvarna chain tensioning

The main characteristic of the husqvarna chainsaw chain is the pitch, which can be measured from the first to the third rivet by dividing the result by two. Due to the fact that the inch is adopted in the Western system of calculation, manufacturers in their passports indicate the step in inches (25.4 mm) with the instrument. Medium chainsaws use 3/8 '' chains, and heavier weighted chains use 4.

One of the most important indicators of the chain is the thickness of the shank, which for most models is 1.3 mm. They are often used on specialized and general amateur instruments. The thickness of the links must be matched to the groove in the bar, as excessive thickness can lead to chain breakage or fall.

When the chain is relaxed, it must be tightened by means of the mechanism located on the side of the unit. Having previously removed the left side cover (2 bolts), weaken the tire for the husqvarna chainsaw. Next, we unscrew the longitudinally tightened bolt, thereby moving the guide away from the power unit. When properly adjusted, the chain should roll easily but not dangle on the bar.

An important protective unit in a chainsaw is certainly the chain brake, which, in the event of a kickback, blocks the rotation of the cutting edges. As a result of the tire rebound in the direction of the feller and, as a consequence, his possible injury, the friction mechanism disengages the drive sprocket and the drive shaft.

Husqvarna Chainsaw Chain Bar Slip

The brake start can be of contact or inertia design. In the first case, the protection will be triggered as a result of the return throw of the unit. The inertial brake system is the generation of large inertial forces acting on the drive shaft. Regardless of the features of a particular design, experts recommend purchasing chainsaws equipped with similar mechanisms.

After the repair and adjustment of the Husqvarna chainsaw, it is required first of all to check the performance of the brake assembly.

In all models of chainsaws presented, oil is supplied to the tire automatically.

The main components of the husqvarna chain lubrication system

Before starting work, you need to make sure that there is a lubricant in the reservoir. The oil pump interacts with the drive sprocket, and as the shaft rotates, the gear delivers lubricant to the running surface of the chain. Due to the constant presence of oil on the cutting edges, the chain is less prone to friction and, as a result, loses its properties noticeably more slowly. If the lubrication mechanism fails, the husqvarna saw will have a fine brown chain. Periodically, the left protective cover of the unit must be removed and the oil hole cleaned with compressed air or a needle. The flow rate of the pumping unit directly depends on the number of revolutions of the tool.

The chainsaw is indispensable in the daily life of the owner. This tool is in great demand and popularity because it helps to facilitate the work of a forester or gardener. Husqvarna is a popular company that has been producing quality tools and equipment for further gardening for a long time.

Increasingly, people buy a Husqvarna 137 chainsaw for use in private enterprises, in households or forestry. The presented products have proven themselves well in large-scale industrial construction.

Manufacturer offers its customers a wide and varied selection of products, but the main direction is the development of chainsaws. Saw Huskvarna 137 is the most successful and highest quality model. It is easy to use, lightweight and economical. But at the same time, it is powerful enough to cope with large volumes of work.

Sometimes Human may encounter some breakdowns of the Husqvarna chainsaw 137that can be eliminated. Today there are a large number of workshops where specialists are engaged in the repair and maintenance of equipment. But for this work you will have to pay a rather large sum.

Saw repair Husqvarna 137 do it yourself without contacting specialists. When the breakdown is minor, then there is no point in going to the workshop and wasting your time. There is a list of the most common problems that the owner of such equipment may encounter. That is why it is advisable to familiarize yourself with them so that you are always fully armed.

If Husqvarna saw stopped working, then first of all it is necessary to check the spark plug for operability. This must be done very carefully using a specially designed hook. First of all, the wires are disconnected from the body of the floor, and it looks at the appearance of the candle.

1. If the spark plug is dry, it means that fuel is no longer flowing into the main cylinder. In this case, the malfunction is not in the candle, so you can safely tighten it back.
2. When there is fuel splatter on this part, the main problem is the carburetor. This indicates that it has been incorrectly adjusted or a startup rule has been violated.

To to eliminate such a problem in the chainsaw, it is recommended to thoroughly wipe the candle, turn off the fuel supply and turn on the starter. This procedure is performed in order to ventilate the combustion chamber well and eliminate fuel surpluses. The spark plug can then be replaced and the Husqvarna 137 chainsaw can be started.

When the candle is covered with heavy carbon deposits, this indicates the use of low-quality oil. In order for a chainsaw to serve for a long time, you need to buy only proven and certified lubricants. Sometimes users incorrectly calculate the ratio of oil to gasoline, and also expose inaccurate adjustment of the carburetor operation.

In this case it is recommended to pay attention to the presence of a spark at startup... For this, an ignition cable is installed on the spark plug, the cylinder and the nut are connected. Now you can start the chainsaw starter and then a spark appears. If it is still missing, then the old plug should be replaced with a new one. On rare occasions, users will come in to look for a faulty high voltage drive or fix a broken connection.

At improper operation of the chainsaw Husqvarna fuel is not entering the master cylinder. This malfunction occurs for several reasons:

• contaminated saw fuel filter;
• viscous chain oil;
• clogging of a special hole;
• dirty air filter.

For cleaning the fuel hose of the chainsaw the fuel supply must be carefully checked. Experts recommend replacing the old hose every three months and buying a new part. If the air hose is dirty, air does not enter the system, namely the carburetor. Most often this leads to disruption of the engine's operation. The filter is cleaned with plain water, but this procedure must be done very carefully.

The part is thoroughly dried and installed in its original place.... The Husqvarna 137 chainsaw is sold with an instruction manual detailing how to replace and clean the hoses. If you do not adhere to the rules, then the situation can be aggravated.

The most common cause is a clogged channel or damage to the carburetor membrane. In this case, it is recommended to replace the part and clean the channels. After that, the chainsaw will work without interruption.

If the saw motor runs smoothly at low speeds, and when they increase, it stalls, then the problem is associated with the muffler. This indicates a faulty spark arrester. Most likely, it is clogged with combustion waste. To perform cleaning, the first thing to do is remove and disassemble the muffler. Then the user carefully removes the formed carbon deposits with a detergent.

After that, experts recommend drying the part with a hairdryer. At the end of all manipulations, you can install the muffler in its original place.

Saw Husqvarna 137 has an uncomplicated designtherefore a large number of faults can be rectified at home. To do this, you should carefully study the breakdown and read the instructions. The rules for parsing and installing parts are indicated there. Saw Husqvarna 137 is distinguished by its reliability and sufficient power. It handles even the most difficult tasks and does a lot of work. That is why the presented chainsaw is widely used at large-scale industrial enterprises.

The chainsaw is an indispensable assistant for every real owner.

Since the inception of the instrument, its popularity has grown rapidly.

So, the Husqvarna 142 chainsaw has high functionality. It is widely used not only in forestry, but also in personal plots.

Choosing a chainsaw is pretty easy. So, it is best to pay attention to well-known brands such as Husqvarna. This company produces a wide range of such tools. Husqvarna 240 and other models are of high quality and functionality. But, unfortunately, even such tools are not insured against breakdowns.

After the chainsaw appeared in the house, many owners breathed a sigh of relief.

After all, this tool allows you to solve complex problems quite quickly and easily.

But, here it is worth considering that the chainsaw often fails. This is due to the fact that it is subjected to heavy loads during operation. Therefore, you must always be ready to eliminate breakdowns.

Today there are a large number of workshops that offer their services for the repair of chainsaws and other tools. But, this does not mean that if a malfunction occurs, you must immediately run to the repair shop.

Some faults can be corrected by hand. To do this, you just need to know the main causes of breakdowns and how to eliminate them.

So, in the process of frequent use of the tool, breakdowns may occur:

• carburetor;
• muffler;
• oil pump;
• ignition and fuel supply systems.

Each of these breakdowns can be repaired with your own hands. The main thing is to know the sequence of work when eliminating a particular malfunction.

Read the article on self-repair of the Stihl 180 chainsaw here.

If the tool suddenly stops working, then the first thing to check is the ignition system. And you need to start with a candle.

You need to do the work very carefully. For this, a special hook is used. First you need to disconnect the wire and remove the candle.

If it is dry, it means that no fuel is entering the cylinder.

If there is spray on it, then the breakdown may lie in the carburetor or in the start rule. To fix the breakdown, you need to wipe the spark plug and shut off the fuel supply. The starter is then started.

Thus, the combustion chamber is ventilated and excess fuel is removed. After that, the candle is installed in place and the chainsaw starts up.

If there is carbon deposits on the candles, this indicates that the Husqvarna 137 chainsaw is running on low-quality fuel. Carbon deposits are also formed as a result of an incorrect fuel to oil ratio. In order for the tool to work as long as possible, you need to carefully study the instruction manual.

If there is carbon deposits on the candle, then it must be carefully removed. You can use an awl for this.The electrodes are gently rubbed with a sandpaper. After that, it is installed in place. You also need to fill in the fuel that is recommended for this model of the chainsaw.

Read the article about repairing a chainsaw Partner 350 with your own hands here.

If the tool does not work, then this may be due to the fact that no fuel enters the cylinder.

First of all, you need to check the fuel filter for contamination. To check this, you need to remove the fuel hose and check how fast the fuel flows.

If it is supplied under low pressure, then the problem lies precisely in the filter.

In this case, the filter must be cleaned. It goes directly through the tank. The filter is cleaned and installed back. It is washed under running clean water.

After that, the filter is dried and carefully put back. To prevent such a problem in the future, it is necessary to periodically clean the filter.

If cleaning the filter did not give a positive result, then you should pay attention to the breather. A clogged hole will result in insufficient air flow into the carburetor.

With frequent use of the chainsaw, muffler malfunctions may occur. It is very simple to define it.

If the tool is working normally, and when the speed increases, it starts to stall, then the reason lies in the spark arrester.

Most often, the breakdown of this element is due to clogging with combustion waste. You can easily solve this problem with your own hands.

First of all, you need to remove the muffler and disassemble it. It is worth considering here that spark arresters are not understandable in some models. After that, the muffler is cleaned of carbon deposits. For this, use special detergents.

When the carbon deposits have been removed, the spark arrestor is dried with a hair dryer. At the final stage, the muffler is installed in place.

As for the carburetor, it can be adjusted and repaired at home. But in order to perform such work efficiently, you need to know the structure of the carburetor and the principle of its repair.

Poor repairs can cause serious damage to the device. Therefore, experts recommend that you carry out its adjustment and repair in special workshops.

As you can see, it is fashionable to fix many of the chainsaw malfunctions with your own hands. But to do this, you need to have certain information. If you are not confident in your abilities, then it is better to seek help from specialists.

Watch the video in which the specialist shows in detail the disassembly-assembly process for DIY repair of the Husqvarna 142 chainsaw: