DIY Husqvarna 235 chainsaw repair

Chainsaws, simple in design and reliable in operation, are very popular among owners of private houses and summer residents. With the right handling of this tool, it takes a long time and rarely breaks. Moreover, it will not be difficult to eliminate the cause of the chainsaw malfunction with your own hands, especially if you know where to look for the cause.

The Swedish manufacturer's tool can turn hard work into a simple task. Chainsaw models "Husqvarna 137", "Husqvarna 240" and "Husqvarna 365" features three features:

• high engine power;
• improved engine filtration system;
• the ability to absorb unnecessary vibrations.

If the tool is operated strictly according to the instructions and its malfunctions are eliminated in a timely manner, then it will delight with reliable and stable operation. Correctly carried out repairs with original spare parts will allow you to use the saw for a long time.

The main cause of chainsaw breakdown is most often engine failures, which can manifest as follows:

• do not start;
• unstable work at idle;
• start up and immediately stall;
• not have enough power.

In this case, the malfunction should be sought in the ignition system, piston group or fuel system. Often the reason for poor performance of the tool can be associated with the clutch, brake system, lubrication mechanisms, tire.

Do-it-yourself repair of the Husqvarna 240 chainsaw, and of any other model, should begin with troubleshooting the ignition system.

First of all, experts recommend get and inspect a candle... The state of this element will indicate deficiencies in the operation of the fuel system.

1. If the plug is completely dry, it means that the fuel mixture does not enter the cylinder. In this case, the plug is screwed into place and the fuel system is repaired.
2. If the spark plug is heavily flooded with a fuel mixture, then the rules for starting the unit may be violated, or the carburetor may be poorly adjusted. Shut off the fuel supply and start the starter. This is done in order to remove excess fuel. The candle must first be cleaned with a sharp object, then rinsed with detergents, dried with a hairdryer and reinstalled. After that, the tool is launched and its work is checked.
3. If there are no fuel residues on the spark plug, then it must be cleaned, washed and checked for a spark. Its absence may indicate a violation of the gap between the flywheel and its magnetic circuit or a breakdown of the ignition module.

A malfunction in the ignition system can be associated with the use of poor oil or with an incorrect ratio of gasoline and oil.

If fuel does not enter the chainsaw tank, then this may be two reasons:

1. The filter is clogged.
2. Lid clogged.

In this case, the fuel is not supplied in full, and the tool does not start or starts and immediately stalls. The repair consists of cleaning the air filter and cover.

The filter must be removed very carefully so that dirt that clogs it does not get into the carburetor. It is cleaned and washed with ordinary detergents.

The heart of any chainsaw is the carburetor, with which most tool breakdowns are associated.

Do-it-yourself repair of this unit consists of disassembly and cleaning. If the breakdown is serious, then contact the service center for help.

Most often, tool malfunctions are associated with the use of gasoline or poor quality oil... To protect the carburetor from damage, it is necessary to follow some preventive measures:

1. Start the chainsaw strictly according to the instructions.
2. It is not recommended to store gasoline in a plastic container. This will help to avoid heavy carbon deposits.
3. The fuel mixture cannot be stored for a long time, as it loses its quality over time.

This brand is very popular among both individuals and professionals. This easy-to-use and reliable tool can last a long time without being repaired. There are situations when the "Calm" chainsaw does not start or stalls right after the plant. You can find out what to do in these cases by watching the video instruction.

The reasons should be sought sequentially, moving from simple to complex. You should not immediately disassemble the carburetor, which is equipped with many different parts and small elements.

First of all, it is necessary check fuel availability and pay attention to its preparation. The mixture should consist of high quality gasoline and oil, the brand of which is indicated in the instructions attached to the saw.

The saw may not start due to the fact that at the moment of starting the spark plug is filled with gasoline. The problem is corrected by drying out or replacing the spark plug and draining the excess fuel.

Quite often, if there is poor contact between the tip of the candle and the high-voltage wire attached to it, there may be no spark. In this case, the connection should be restored. If after this the spark does not appear, then the electronic ignition unit is most likely faulty. It must be replaced with a new one.

You cannot count on an easy start and operation of the chainsaw if its filter is clogged. It needs to be taken out, well cleaned and rinsed, paying particular attention to the mesh.

Sometimes the saw motor will not start due to a malfunction of the cylinder-piston group... In this case, for repair you will need:

1. Unscrew the bolts and remove the cylinder from the block.
2. Check the integrity of the piston and cylinder.
3. If the cylinder is damaged, then it must be replaced with a new one, or it must be repaired by boring the mirror to the size of the piston.
4. Determine the degree of wear of the piston rings and replace if necessary.

For an instrument that ran on relatively normal fuel, such procedures are sufficient. Now you can saw reassemble.

Some parts of the "Husqvarna" and "Calm" chainsaws must be replaced after the expiry of the passport service life. These terms are spelled out in the instructions attached to the tool. It also indicates how to properly wind the instrument. Acting according to the instructions, distinguishing between cold and hot starts and using the chainsaw strictly for its intended purpose, it will be necessary to repair it very rarely.

Why do you need to adjust the Husqvarna carburetor

The carburetor is one of the fundamental mechanical units that make up the chainsaw. In his tasks - mixing fuel with air and supplying the acquired composition to the engine. But during the operation of the chainsaw, situations occur when Husqvarna carburetor adjustment becomes necessary. If the chainsaw starts to sneeze or does not start well, then adjusting the carburetor of the Husqvarna 137 chainsaw with your own hands will be an excellent solution to these problems. Depending on the circumstances, adjustment the carburetor of the 142 chainsaw model and other series is produced to prevent the following situations:

• the presence of interruptions in the operation of the motor, accompanied by its shutdown;
• excessive use of fuel at work.

Since the carburetor affects the quality of the fuel, in the first case, the need for options for the saw carburetor 137 or other professional series, such as Husqvarna 240 or 260, implies the impact specifically on a sufficient amount of combustible raw materials entering the carburetor for mixing with the air mass. It is clear that the highest productivity is possible only with a certain ratio of these substances.The second moment of adjusting the carburetor mixer of the chainsaw is caused by a lack of incoming air, which provokes the underburning of the injected gasoline with its output in the form of thick smoke. Just right, a do-it-yourself change in characteristics to reduce the amount of injected fuel will significantly reduce the consumption of this product.

Self-repair will save not only the budget, but also the time spent on transportation and the queue at the workshop. This also applies to the replacement of various spare parts in a gasoline tool, like a chain for a chainsaw or a universal trimmer head for a brushcutter, or oils for electric driven products.

Neglecting deviations in the normal operation of the gasoline tool is fraught with the fact that even with a strong desire adjusting the carburetor of the Husqvarna chainsaw it may turn out to be worthless and it will be necessary to replace either this unit, or already parts of the motor that have suffered from prolonged thermal or mechanical stress. Therefore, as the saw showed the first differences, you should immediately create repairs in the form of light adjusting actions. Among such configurations in the work, we note: