Why chainsaw does not start: causes and remedies

To facilitate physical labor, mankind invented work tools. They serve to influence objects and materials. There are mechanical tools and those that are driven by pneumatic, hydraulic drives, fuel energy or electricity. Tools used in construction and for minor repairs in the home. One of the most popular tools is a chainsaw. It is a reliable tool that can be used for cutting solid objects and materials and their formation. But the chainsaw does not always work properly. This article will address cases in which a new chainsaw refuses to work, the causes of this problem, and methods for fixing it.

Do not start a new chainsaw

By purchasing a new tool, you are counting on its quality. Unfortunately, not every implement meets the working requirements.

Important! Savings on fuel materials will lead to serious losses in the repair of the piston group. Purchase only high-quality fuel and oil, which is indicated in the instruction manual, to avoid breakdowns.

The reasons

In general, there should be no problems with new equipment, since all its parts and elements are in immaculate factory condition and have not been exploited by anyone before.

First and the main cause of problems with the launch - you do not adhere to operating instructions. If the instructions are followed, the problem may lie in the oil-gasoline mixture, which you have prepared for the wrong proportions. Third The reason why you can not make a new tool is a technical malfunction or factory defect.

Read also how to install and sharpen the chain for chainsaws, as well as how to choose the right machine for sharpening

Solutions

Before contacting the store for a return, carefully read the instructions. Make sure that all instructions are followed step by step. If you did everything right, and the tool still does not work, check whether you have filled in good oil and gasoline in the tank. For lubrication and supply of chain tools, quality products from the manufacturer are required. Do not save on it.

In case you have fulfilled all the requirements of the instructions, and the saw still does not work, contact the store. You should have warranty card and original packaging. In the store, you will receive a refund for low-quality products or replace them with similar ones, or return the money spent. If the warranty is lost and the package is not returned, you should contact the service center. Do not attempt to disassemble the tool and identify the problem yourself. Having come to a working condition, he can fail and injure you. Take the chainsaw to the master, he will examine it and repair it if necessary.

Did you know? Tools like saws are found during excavations of ancient settlements. Their approximate age dates from the VII-III millennium BC.

Chainsaw does not work: causes and how to eliminate them

During operation, the components and the headset saws are subjected to significant stress, and therefore wear out. Therefore, a tool that recently worked, refuses to run. To understand the cause of failure, you need to know the reasons that affect the operation of the tool more often than others.

Fuel

The special oil-gasoline mixture is prepared by the owner of the tool manually, therefore inaccuracies are possible here. The desire to save on fuel badly affects the tool up to its complete inoperability. To ensure that everything works without interruption, make sure that you use high-quality gasoline and oil, which is indicated in the instructions. Properly prepared mixture can be stored in finished form for no longer than two weeks.

Petrol fuels lose their properties for the third week and normally power your instrument will not. Particularly sensitive to the quality of the mixture chain saws made in China. Sometimes you have to sort out several different oils before you achieve a smooth and high-quality course.

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Spark plug

This reason is easy to determine. If a candle malfunctions, the device starts and immediately stops working. To the failure of this element leads to the accumulation of the fuel mixture on the electrodes and the buildup of carbon on them. To get rid of this problem, remove this element, remove the carbon file with a file, turn it off and wait half an hour for it to dry. Drain the rest of the mixture, put a candle in place and can continue to work.

If this element is dry, its fault lies in the large distance between the tip and the spark-giving wire. Check the spark: remove the tip, remove the candle, put the tip in place, put the candle so that it touches the cylinder with the skirt. Start up. If the spark is visible and it is large, the problem is not in the candle. If the spark is weak, reduce the distance between the electrodes using a special probe.

Important! Very part of the saw does not start because of the accumulation of the fuel mixture between the electrodes on the candle. Such a malfunction can be fixed by yourself. Simply clean the electrode tip from carbon and fuel. After this procedure, the tool should start.

Filters

Filters tend to clog and lose bandwidth.. To check the fuel filter, disconnect the fuel hose from the carburetor and pump up the gasoline mixture. If it goes smoothly, the filter is fine. If it starts digging or flowing in a thin stream, the filter is clogged. To clean it is almost useless.

Better change the cartridge to a new one. As for the air filter, it becomes clogged if you cut something very fragile or dusty. Get this element very carefully so that the rubbish that has settled on it does not get into the carburetor. After extraction, rinse, clean and dry, and then carefully put in place.

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Muffler

This element of the device is often overgrown with resinous deposits, which accumulate on it during combustion of the fuel mixture. Power revolutions while falling, sometimes until complete inoperability. To clean the exhaust channel and muffler, remove them, remove the cooler and seal from the case, disassemble the spark suppressor and the resonator. Wash all elements removed from the housing in warm, soapy water, dry and reassemble.

Dry cleaning of this element is unacceptable, as substances harmful to human health accumulate on it.

Did you know? For centuries these tools have been made of stone. Only the ancient Scandinavian peoples began to cast them from metal alloys. Saws were used as combat tools, but they did not receive special distribution, as they significantly lost in strength to axes.

Hoses and connections

These elements of the device are quickly frayed and worn, as they are flexible and transport the fuel mixture. The leakage of the hose is fraught with flooding the tool with the fuel mixture, and such failures can be eliminated only at the service center. As for compounds, it is better to check their tight fit immediately after purchase. Hoses have a specific operational life.

At its expiration, they must be replaced. This applies to already exhausted hoses. If you checked the hoses and connections and found a leak, remove the waste item and replace it with a new one to avoid serious damage. You can check them by pumping the fuel mixture after disconnecting from the carburetor.

Carburetor

This is a fragile chain saw element that needs a delicate debugging. If you have checked all the previous elements, and they are working properly, take up the carburetor cleaning. Its pollution disables the entire machine. Lay out a clean cloth on the work surface and gradually, detail by detail, disassemble this mechanism.

Clean off dust, tar and carbon with special liquids. Suitable tool for cleaning nozzles. Then reassemble the entire mechanism. If necessary, record the order in which you removed the parts or lay them out on the table in order. The cleaned carburetor will begin to function.

Important! Dust set for each manufacturer is different. When buying replacement parts, pay attention to the manufacturer, as you risk to purchase a headset that is unsuitable in size or technical characteristics. The operating time of the headset is prescribed in the instructions.

Ignition system

Also known as an ignition unit, This element is responsible for the electrical generation of the incendiary spark. If the electrodes on the spark plug can be pulled closer together, then this block is beyond repair. It is simply replaced by a new one. To check for the presence of a spark, remove the candle, replace its tip, and run the saw idle. If the spark does not slip even after the electrodes come closer, contact the service center. There your saw will put a new ignition system.

Cylinder-piston group

This is the last possible source of the problem and the most difficult to repair. First, check its health. Screw the compression meter into place of the candles and start the saw. If you do not have this device, simply close the candle hole with your finger and start the mechanism. If you feel a strong intake, then with the cylinder-piston group everything is fine. If there is no compression, you will have to conduct an external examination.

The slightest dents and chips will lead to the immobility of the cylinder. You can make it wider and put a new piston, or you can replace the whole group, then the tool will last you longer after the repair.

Did you know? In ancient Greece, saws were used only as a tool during construction. They were not only made from metals, but also started to be forged. This greatly increased the strength of the tools and made them popular among ordinary people. Saws began to be used not only by builders, but also by villagers and artisans.

Chainsaw mechanisms do not work: causes and solution

Saw you run in different conditions. It may be hot, cold, worn, or new, and each of these cases requires a different approach.

Insufficient chain lubrication

The reason may be clogged hoses, their deterioration and, as a result, leakage. A badly lubricated chain and disc wear quickly. Check whether the oil supply is good - start the saw and direct it to a clean piece of paper. If microscopic droplets remain on it, flying off a rotating chain, everything is fine. If the sheet is dry, you need to clean the hoses that supply lubrication to the disc and chain. Be sure to check the joints and connections of parts with hoses. Leakage must be cleaned, degreased and treated with sealant.

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Fuel quality

It all depends on you. Read the instructions, read what quality gasoline is required for normal operation of the saw, and do not save on the power of this mechanism. Gasoline consumption is small, and low-octane fuel will quickly “kill” it.

Cleaning

User cleaning outside the service center is of poor quality. If you gave the tool for cleaning to a familiar handyman, and after returning failed to start it, the reason lies in residual dirt. You can take the saw for professional cleaning, or you can carry it out yourself.

Start by draining the fuel and lubricant mixture. Then dry all the parts and, if possible, remove nagars from them. Disassemble the saw into hoses, cylinders and valves. Disassemble the carburetor on a separate work surface. Replace the fuel filter, wash and replace the air filter. Wash all the parts in warm soapy water and dry them with a hairdryer. Then assemble everything in reverse order and try to launch. He must be successful.

Important! Worn one part leads to the failure of another. Thus, the lack of lubrication on the sprocket leads to increased vibration and loosening of the expensive piston group.

Wear parts

Most often, the chain sprocket, chain tire, spark plug and piston rings fail. It is recommended to change them as the instrument is used. If you have not serviced and the saw has suddenly broken, first replace the spark plug. It is covered with soot, the electrode tip moves away from the wire. A new candle can solve the problem of a normal launch. The saw bar and sprocket are consumables, so they need to be replaced more often by candles. They guide the chain, determining the quality of the cut, and it is very dangerous to operate a saw with a worn-out tire. Replace these parts in a service center or buy similar ones and carry out the replacement yourself.

Piston rings fail when cutting hard materials and significant long-term load. The vibration breaks them, they become covered with cracks, the cylinders begin to fall. The wear is indicated by poor traction, low power, and smoke pulling from the muffler. It is easy to carry out the replacement, the main thing is to remove the cylinder-piston group from the saw case and clean it from the fuel traces so that the new rings rest on clean pistons.

We advise you to find out exactly how a chainsaw is used for trimming trees and making benches

Engine flooding

Most often, this problem occurs when trying to start the engine "on hot." To solve the problem, turn the duct flap horizontally and try to start the mechanism. It may not start immediately, but after the evaporation of the fuel mixture should work. Warm up the mechanism for about fifteen to twenty seconds, and then move it to idle. Open the throttle completely and allow the engine to dry.

Did you know? Hand saws were used in carpentry in ancient Egypt. On the walls of the royal tombs to this day are murals depicting workers with these tools in their hands, dating from the XIV century BC.

Preventive measures

The best way to ensure long tool life - it's good to care for him. If you use a saw, then put it on the shelf, and so every time, then you need to reconsider your approach. Use only high-quality lubricants and fuel materials. Minimal savings can damage the piston group, which costs more than half the cost of a saw. After the acquisition run in the tool at idle for at least half an hour. Gas only when you increase the load, loose materials cut at medium speed.

As soon as you finish the work, let the mechanism cool down and clean it from small rubbish. Do not store the fuel mixture in the tank for a long time, otherwise it will flood the entire mechanism and oxidize. If you plan to postpone the tool for a long time, hold it at idle until it stalls from burning out the fuel. Rinse the muffler and engine from time to time to prevent build-up of oily waste. Replace hoses, chain and tire as you wear.

Important! One saw tire can be used to maintain three or four chains in a row, depending on the intensity of exploitation. After this quantity, the tire must be replaced along with the chain.

In the care of this tool is important systematic. An expensive tool at the disposal of a negligent owner will not last long. Conversely, the owner, who is well watching his tools, will use one chainsaw year after year. If you are not confident in your ability to repair, leave this thing to professionals. Take the tool for debugging to the service center and ask in detail how to handle it. Be sure to follow the instructions, replace the headset as you wear. So you will ensure your safety and at the right time you can use the trouble-free working tool.

Watch the video: Chainsaw Won't Start Fuel Issues (December 2024).