How to clean the gas tank on a chainsaw. How to clean the muffler on a chainsaw. Assessment of the condition of the cylinder-piston group

Chainsaw care

Chainsaw care

Lubricants

Everyone who is not an enemy of their own chainsaw must understand once and for all that oil is found exclusively in Russian sayings, and in chainsaws there is suitable and unsuitable oil. Everyone wants to save, but after saving a few hundred rubles on motor oil(by purchasing not synthetics from an ordinary company for 500 rubles, but some Chinese trash for 200 rubles), you can destroy a piston in a couple of hours of work, at a cost of 80% of the price of a chainsaw.

The same applies to chain and bar oil; the real savings when using bad oils are lower than the lost profits after the chain and bar fail.

Moreover for household use Even the most precious oil is not an item for significant savings.

Running in a chainsaw

Read:

A real run-in idle speed needed only for poor chainsaws, for ordinary chainsaws, for example, for Stihl chainsaws, during the first few refuelings it is recommended to gas only when under load, and in the instructions for the Husqvarna chainsaw there is stupid advice “Avoid working at very high highest speed during the first 10 hours" (where the speed controller is remains a mystery) and no mention of any production of several tanks per idle speed there is no question.

It is also better to avoid buying chainsaws that clearly indicate the need for long-term (more than an hour) running-in. idle speed, because this, apparently, is a condition for a hook to refuse warranty service, they say: Have you done a run-in? No? Well, then this is a violation of the operating conditions.

Chainsaw storage

After use, every chainsaw should be cleaned of sawdust, especially the area where the tire is attached, so that water does not accumulate and corrosive substances are not created.
When storing chain lubricant oil for more than a few days, it is better to drain it, because the tank is not sealed and the oil may leak out. This is not unsafe and there is no need to plug holes, and it does not affect the operation of the chainsaw.
For long-term storage it is necessary completely drain the fuel mixture from the tank, start the saw and wait until it stalls from running out of fuel. The oil in the fuel mixture decomposes and cokes, and if the saw is stored for more than a month, the carburetor channels may become coked and/or the membranes may stick together, after which, in the best case, ordinary cleaning will be useful, in the worst case, replacing the entire carburetor.

Chainsaw repair Shtil ms 180, muffler cleaning

Carbon deposits in the muffler may be one of the reasons why it stalls chainsaw. In case muffler confusion.

Partner NO POWER!!! Chainsaw repair.

Quite a common problem, this is chainsaw no power. What to do on chainsaw no power? Of course.

Chain sharpening

Tire care

Every few hours of work, it is necessary to rearrange the tire 180° so that both sides are used approximately equally.

Read:

Also, every time you fill the tank, you need to lubricate the tire sprocket so that it serves for a long time and normally, for which almost all stores sell special syringes for lubricating the sprocket. The only manufacturer that has solved this issue is Stihl with its system Ematic

Very often you can hear advice that if a “dented groove” forms on the guide runners, straighten it with a file, however, if the tire is from a normal manufacturer, then “refinement with a file” will not work. Moreover, if you do not maintain an ideal right angle between the file and the bar, then the “corrected” bar will last even less, since during operation the chain will wobble in the runners and break them even more strongly.

Cleaning the chainsaw after work

Every time after work, you need to clean the chainsaw from sawdust, clean it and, preferably, rinse it with auto chemicals, the oil pump. This should be done immediately after work, because if it is dirty chainsaw Let it sit for a couple of weeks, then you’ll get tired of cleaning it later. Why does a chainsaw stall when I press the gas: prerequisites and solution There are often cases when owners of chainsaws are faced with their breakdown and it does not matter at all what model of this type of equipment, because the nature of breakdowns is almost the same for everyone. Well, the chainsaw has stalled, so what next? Of course, you can take the equipment to special services that...

How to completely clean a chainsaw: carburetor, filter, muffler

During the operation of a tool such as a chainsaw, its owner often encounters a number of problems, one of which is a clogged carburetor. Description of adjustment and video example of a chainsaw just like European ones. Video. How to quickly clean a Stihl MS 180 chainsaw. This can happen if the chainsaw is filled with low-quality gasoline or foreign debris gets into the fuel tank. In order to clean the carburetor of a chainsaw, you must first disassemble it.

Cleaning correctly

To properly clean your chainsaw, you will need the following tools:

Phillips and flat screwdriver,
wrenches with heads of various sizes,
special cleaning composition, cleaning cloth,
ultrasonic cleaner.

The set of tools can be seen in the photo.

Cleaning a chainsaw carburetor should be done using the following method:

First you need to drain the remaining fuel from the fuel tank. Remove the cover of the chainsaw by unscrewing the fasteners. How to disassemble a chainsaw quickly and accurately? They need to be cleaned with emery cloth. We take out the filter and disassemble the housing, removing nuts and clamps as needed.
Remove the fuel supply hose from its clamp, unscrew the fasteners of the carburetor top cover. Then we film top cover and the blue gasket is the fuel pump membrane. There are spring clips to the left of the body; remove them, and then the screws. It is better to label the parts and schematically record the places from which they were removed, so as not to confuse anything at the time of assembly.
Remove the bottom cover of the carburetor, unscrew the screw and remove the needle valve and the spring under it. Then, using longitudinal force, remove the air damper and its axis.
Remove the throttle valve, drive lever and throttle shaft.
We lay out all the removed carburetor parts on a flat surface and inspect them to ensure integrity is maintained. You don’t know how to adjust and see a visual example in the chainsaw video. Parts with the highest degree of wear must be replaced with new ones.
Using a special cleaning agent, wash the parts and dry with a lint-free cloth. The tubes must be blown under pressure using a pump.
To achieve the greatest effect, you can clean the carburetor on a Shtil chainsaw using a special cleaning bath, the basis of which is the cavitation effect. The bath is filled with diesel fuel, and the carburetor parts are immersed in it for a couple of minutes. How to Clean a Chainsaw Partner. In this video I told you how to install a non-standard carburetor on a Friendship 4 chainsaw! Finally, we dry the parts using a pump.

How properly clean a chainsaw after work. Cleaning the chainsaw.

In that video- in the lesson I will tell and show you how true clean the chainsaw after work. Cleaning the chainsaw.

How properly clean a chainsaw Stihl MS 180 after work

Cleaning issue chainsaws Stihl MS 180 is very important after the work done. Clean the chainsaw Stihl MS 180.

Detailed video will help with the cleaning process to do the job correctly.

After all the products have been dried, it is necessary to assemble the carburetor. Usually the detergent evaporates completely within a day. You can clean your chainsaw Detailed video with the cleaning process How to clean. Also at the end of the post I added a video on how to adjust the chainsaw according to. It is better to wait a day after cleaning, since residual detergents on the parts can get into the fuel compartment and release toxic gases during combustion.

Another important nuance associated with disassembling a chainsaw is that it is necessary to extremely accurately install and adjust the needle valve blade, otherwise the chainsaw may not start. You can use a blade to check that the petal is installed correctly. Having installed it on top, we see how freely the petal rotates. If no problems arise, then everything is in order and you can continue assembly. In this video I will show you how to properly install the ignition on a chainsaw and how to adjust the carburetor on a chainsaw. If movement problems still arise, then the petal must either be pressed down or the edge on it must be bent.

How to clean a chainsaw filter

It may be necessary to clean the Husqvarna chainsaw filter after each use. The cleaning process itself, depending on how dirty the filter is, can be done in two ways:

A mechanical cleaning method, which involves blowing the filter.
For higher degrees of contamination, the filter is washed in soapy water.

Read also

Important! It is forbidden to wash the filter in aggressive solutions: gasoline, diesel fuel, acetone.

How clean muffler for chainsaw

Timely measures to clean the chainsaw muffler can significantly extend the life of the tool. There are several reasons for muffler contamination:

long service life,
low quality of the oil being poured,
Incorrect carburetor settings.

Almost every village resident and many dacha owners have chainsaws on their households. They are easy to use and can be repaired yourself. Finding out the reason why the device does not start, troits, or has problems with idling is not so difficult. Despite the types of chainsaws, the principles of repair are the same.

Chainsaw classes:

Household. These saws are used in everyday life. For example, for harvesting firewood, cutting boards. A household saw can be used to cut down branches and trees of small thickness. The tool has a minimum of functions, low power and weighs up to 4 kg. Household saws are the cheapest and are not designed to last long. Recommended use is up to 20 hours per month, that is, 40 minutes per day. Women and older people can easily use such saws.
Semi-professional. Used for felling trees and construction work. They are often purchased for professional use, for example, employees of landscaping companies. But such saws can also be used in everyday life due to their smaller size and weight than professional tool. Specifications and price are between household saws and professional ones. The disadvantage of these saws is that you cannot work for 10 hours continuously. Large intervals must be taken.
Professional. Such saws have all the necessary functions, high power up to 6400 W, large sizes and weight. They are used by utility and rescue services, but they are mainly used by lumberjacks. After all, with such a powerful tool you can cut down trees with a diameter of more than 70 cm and work for 8–10 hours without breaks. Professional chainsaws last for years. They have the most reliable piston system, chrome-plated cylinders. The service life is 3 times greater than that of household models. Accordingly, the price of such a tool is the highest.

The purpose of the tool affects power, weight and size. Chainsaws have three purposes:

Garden.
Farmer's.
Felling.

What you need to troubleshoot

Before you begin disassembling and repairing a chainsaw, prepare necessary tools and accessories:

Overalls.
Gloves.
Free space on the table.
Spark plug wrench with screwdriver.
A screwdriver for adjusting the carburetor.
Hex key.
Socket wrench.
Pressure gauge for measuring compression.
Piston stopper for two-stroke engines.
Clutch puller for chainsaws.

Problems and DIY repairs

Chainsaw problems can be of two types:

Malfunctions of the engine, ignition system, fuel supply and exhaust.
Malfunctions of other components.

The following indicators will indicate that it is necessary to diagnose the engine:

The tool does not start or starts and stalls.
It works unstable.
It works at idle speed, but when under load the speed drops or stalls.

Problems with other nodes:

Lubrication system problems.
The chain brake does not work.
Breakage or wear out of the chain.
The sprocket is worn out.

Ignition system (does not start, stalls)

Need to check appearance spark plug.

Take the spark plug key. Remove the insulating cap from the power cable. Use a key to unscrew the spark plug.
If it is dry, then the ignition has nothing to do with it. Screw it back in and proceed to diagnosing the fuel supply.
If the spark plug is filled with fuel, the engine starting rules are not followed correctly or the carburetor is poorly adjusted. Dry and heat the candle. Now you need to remove excess fuel. Pull the starter 15–20 times. Twist the candle. Put on the cable. Try starting the saw.
A lot of carbon deposits have formed on the spark plug. This kind of trouble appears in three cases: incorrect proportions of gasoline and oil in the combustible mixture, bad oil, incorrect carburetor settings. To get rid of the deposits that have formed, heat the candle well. Take a wire brush and remove all the scale. Clean the spark plug with fine-grit sandpaper and a needle, then screw it back on.
Always check the gap between the center and side electrodes of the spark plug. It should be 0.5–0.65 mm.
Check the condition of the sealing gasket. It prevents air from entering the combustion chamber.
Now we need to check for a spark. Put it on a candle power cable and attach it with the thread to the cylinder. Pull the starter. If there is no spark, replace the spark plug. Check the new one in the same way. If it also lacks a spark, it is faulty. power wire. Replace it.

Fuel supply system

Fuel does not arrive for three reasons:

In the lid fuel tank There is a hole that could become clogged. If this happens, a vacuum is formed, which prevents fuel from leaking out.
A fuel filter is installed in the tank. It gets dirty over time.
Fuel is poorly supplied from the carburetor to the cylinder.

The first two reasons are identified in the same way. To do this, you need to disconnect the hose through which the fuel passes from the carburetor. And check with what pressure it flows out. If it flows weakly or does not flow at all, then clean the tank cap with a needle and replace the fuel filter. But first you need to drain the flammable mixture and remove the filter from the tank with a wire hook. If fuel flows well from a disconnected hose, it means the air filter is clogged or the carburetor is faulty. The air filter affects the flow of air into the carburetor and the enrichment of the combustible mixture. When it is clogged, the mixture is too rich because there is no air flow. This affects the correct functioning of the engine.

Carefully remove the air filter to prevent dust from scattering. Cover the hole formed in the combustion chamber with a clean cloth.
Blow through the filter and clean with a soft brush. If the filter does not clean, wash it. After drying, put it back.

Before adjusting the carburetor, check the cleanliness air filter and whether the chain is tensioned enough. Read the instructions. The manufacturer describes how to properly adjust the carburetor. If there are no instructions, find the three labeled screws:

Take a carburetor adjustment screwdriver and get started.

Basic adjustment. Performed with the engine turned off and cold. Turn screws H and L all the way to the right, i.e. clockwise. Then one and a half turns to the left.
Idle speed adjustment. Before starting, turn on and warm up the engine. Rotating the screw S to the right increases the speed, and to the left decreases it. You need to lower the speed and control so that the engine runs stably, without pauses. Keep the chain moving. If the engine suddenly stops, increase the speed little by little. And when moving the chain, reduce it.
Checking the engine for acceleration. Smoothly press the fuel button. A tuned engine should quickly and confidently pick up speed to maximum. If the engine lags and runs unsteadily, turn screw L to the left no more than an eighth of a turn.
Adjustment maximum speed. When reaching maximum speed, ignition interruptions occur. Slowly turn screw H to the left until stability is achieved.
After all adjustments, check the engine at idle speed. It should work stably when the chain is stationary. If you haven't achieved desired result, repeat all adjustments, excluding the basic one.

Disassembling and cleaning the muffler

When the muffler is clogged, the exhaust gases have nowhere to go. The saw will not work or start. The design of the chainsaw allows you to remove the muffler quickly. Depending on the mounting method, you may need a hex key or socket wrench.

The muffler becomes dirty due to poor quality oil or incorrect composition fuel mixture.

How to remove and clean the muffler on a chainsaw

Cylinder-piston group

Wear and damage to the cylinder-piston group makes it impossible to start the engine.

Damaged piston

To detect damage, remove the muffler. The exhaust hole will open to you, into which you will see part of the surface of the cylinder.

Part of the cylinder in the exhaust port

In addition to the piston, which may not have visible damage through this hole, inspect the piston ring. If defects are present, then it is necessary to disassemble the entire piston group to fully assess her condition. Malfunctions can only be eliminated by completely replacing the group.

Check the compression:

Take a pressure gauge to measure compression. Screw it into the spark plug hole, gently pressing the sealing rubber.
Pull the starter while watching the gauge needle.
The pressure must be at least 8 atmospheres.

If you don't have such a device, try it folk way. Unscrew the spark plug.

Checking compression the traditional way

Plug the spark plug hole with your finger and pull the starter. If your finger gets sucked in, it means there is compression.

How to measure compression with a pressure gauge

Chain, tire

Signs of chain wear:

Violation of the integrity of the cutting links.

Gaps, abrasions and cracks in rivets and sides of links.

The cutting link was so worn that sawing became difficult.

The connecting link is damaged.

After replacing 3 chains, change the tire and drive sprocket.

To replace the sprocket you will need: a spark plug wrench, a piston stopper, and a clutch puller.

Replacing the chainsaw drive sprocket

Chain lubrication system

If the bar is not supplied with lubrication or is poorly supplied, the chain and bar overheat, causing severe friction and wear. Check the holes and channels through which lubricant flows. If they are clogged, they need to be cleaned.

Chain lubrication

Oil leaks if:

The oil pump housing has cracks. In this case, the pump must be replaced.
Leaky connection between pump and tube.
There are cracks in the tube.

All chainsaws have an oil supply adjustment. Near the location of the adjusting screw on the body there is always a marking in the form of a chain link and a drop of oil. If you turn to the right, the oil supply will decrease. In winter, the oil supply is increased, in summer it is reduced. Do not reduce it too much, as the tire will burn.

Chain brake

The brake stops working for the following reasons:

Chainsaws need regular cleaning of sawdust, dust, dirt, carbon deposits and replacement of spare parts. If you can do it yourself, you will save time and money.

It would seem, why would a summer resident who grows vegetables and fruits, or the owner, need a chainsaw? country house with a small garden and several flower beds? The question disappears when the desire arises to build a bathhouse, update a greenhouse, knock down an old business, or simply make a bench for relaxation. Unfortunately, any mechanism periodically needs maintenance and replacement of spare parts, and for this you need to have a good understanding of the structure of the product, besides, repairing a chainsaw with your own hands will save time and money.

A serviceable chainsaw starts with one pull and does not fail to cut

Checking the ignition system

The first thing you need to do if your chainsaw breaks down is to inspect the spark plug by disconnecting the wire and carefully unscrewing it with a special wrench.

Components of the chainsaw ignition system: 1 – flywheel with magnets, 2 – ignition module, 3 – spark plug, 4 – high voltage wire

The spark plug is unscrewed to check its condition

Her appearance speaks volumes:

Dry. Most likely, the fuel mixture is not getting into the cylinder. The problem is not in the ignition system, so the spark plug is screwed back in.
Heavily splashed with fuel. The reason for the excess fuel mixture lies either in violation of the starting rules or in incorrect carburetor adjustment. The spark plug is thoroughly wiped, the fuel supply is turned off and the starter is turned on to remove excess fuel and ventilate the combustion chamber. Then the candle is placed in place and the mechanism is started again.
Covered with black soot. This may indicate the use of low-quality oil, an incorrectly adjusted carburetor, or an incorrectly calculated ratio of gasoline to oil. The spark plug should be washed, removed from carbon deposits with a sharp object (an awl or a needle), the electrodes should be wiped with sandpaper and placed in place.

When checking the spark plug, you need to pay attention to the gap between the electrodes: 0.5 to 0.65 mm is considered normal. A damaged or worn gasket must be replaced.

A large amount of black carbon deposits on the spark plug indicates problems with the engine.

To be completely sure, you should also check for a spark. To do this, put the ignition cable on the spark plug, connect the spark plug nut and the cylinder with pliers, turn on the starter and watch for the appearance of a spark. If it is missing, the spark plug needs to be replaced. If new spark plug also does not produce a spark - the problem is in the high-voltage wire or in a broken connection with the spark plug.

Fuel supply system repair

Fuel may not enter the cylinder for the following reasons:

Fuel filter is dirty. You should remove the fuel hose and check how the fuel flows. If the stream is weak, the filter may need to be cleaned. It is taken out through the filler hole of the fuel tank and cleaned; in case of severe contamination, it is replaced with a new one. As a preventative measure, it is recommended to replace the fuel filter once every three months.
Breather clogged(holes in the fuel tank cap). They also check by disconnecting the hose; if clogged, clean it with a needle.
Lack or insufficient fuel. There may be several reasons for the malfunction. The first reason is a clogged air filter. Air stops flowing into the carburetor at the right amount, in this regard, due to the too rich fuel mixture, engine operation is disrupted. The dirty filter is carefully removed, cleaned and rinsed in water, then dried and replaced.

Another reason is incorrect carburetor adjustment. Adjustment is made with three screws.

Timely replacement of the fuel filter guarantees a complete fuel supply

The fuel hose and choke actuator must fit tightly to the fittings

The throttle cable must be in place.

During work, you must use the instructions, otherwise you can only make things worse.

And the last reason is a violation of the integrity of the membrane or clogging of the carburetor channels.

To repair a carburetor yourself, you need to become familiar with all its parts.

All parts must be clean, dry and in good working order.

Disassembling and cleaning the muffler

If the engine runs great at low speeds, but starts to stall at high speeds, the reason may lie in the muffler spark arrester, which is clogged with combustion products.

Procedure:

remove the muffler;
disassemble (there are also non-dismountable models);
remove carbon deposits using detergents;
dry with a hairdryer;
install in place.

Dry cleaning is unacceptable, as carbon deposits contain carcinogens, the inhalation of which is hazardous to health. After removing the muffler, cover the exhaust hole with a clean rag.

Interruptions in the operation of the chainsaw indicate a possible clogging of the muffler

To prevent clogging of the muffler, it is necessary to monitor the composition of the fuel mixture. The amount of oil should not exceed the standards recommended by the manufacturer. Poor oil quality also negatively affects engine performance.

Assessment of the condition of the cylinder-piston group

Often the engine does not start or does not run properly. full force due to low pressure in the cylinder. It can be caused by wear of the piston or cylinder, stuck piston rings, or worn bearings. You can partially examine the condition of the cylinder-piston group (CPG) by removing the muffler and looking into the opened hole.

A compression gauge placed in the spark plug hole will help measure the compression in the engine - based on the measurement results, we can also talk about the condition of the CPG. Accurate data is obtained only after complete disassembly mechanism. If the piston is chipped or scratched, it needs to be replaced. The piston ring must be clean, free of carbon deposits, and be exactly in place.

Here's how to diagnose the lubrication system:

Adjusting the chain brake

The chain brake often does not work due to grease or sawdust clogging the brake band and the space under the cover. All parts should be cleared of blockages. Perhaps the tape is simply worn out, then it needs to be replaced.

The operation of the chain brake is restored by mechanical cleaning

Some parts of a chainsaw wear out faster than others. These include the drive sprocket, tire, chain, and anti-vibration elements. For quick replacement, it is better to always have spare parts on hand. Don't neglect sharpening the chain.

Timely cleaning the chainsaw will ensure a long service life of the tool. How often this procedure should be performed depends on the intensity of use.

Attention! Before you start cleaning the tool, you need to drain the fuel from the tank, remove the saw chain and place it in oil, and also check for possible damage.

According to service specialists, upon completion of work it is necessary to clean the main elements of the chainsaw:

A chain brake that becomes contaminated during operation with sawdust, shavings and other debris will result in poor performance. This element is cleaned with kerosene.
Air filter. In the best ways Cleaning chainsaw filters is as simple as tapping and blowing. To remove more serious contamination, we recommend that you first immerse the part in a tank with non-flammable liquid. detergent. You can use warm soapy water. Before installation, the filter must be thoroughly dried. If the filter material is damaged, the corresponding elements must be replaced immediately.

Besides:

Check the presence of oil, if it is empty, add to the required level. If the chain is loose, tighten it. Top up if necessary required amount fuel mixture.
The driven sprocket of the tire should be lubricated and immersed in heated oil after every hour of operation of the tool.

What else should you pay attention to when cleaning your chainsaw?

Remove dust from the cylinder windows, combustion chamber, piston grooves, rings and piston crown every 25 hours of operation. Clean the grooves of the guide bar - you can use a small screwdriver for this, and a wire for the oil holes.

If you notice that the performance of the tool has become lower, the muffler or fan disk may be clogged, clean it. From time to time we recommend turning the guide bar over and checking the sprocket and clutch. Open places exposed to corrosion must be lubricated with oil. If you plan to install the instrument on long-term storage, we advise you to preserve it.

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