The stihl ms 180 chainsaws are designed to make their use as easy as possible for inexperienced users. For this, some of the settings available on the more powerful Stihl models have been abolished in the saw carburetor. But there is still an opportunity to adjust, and repairs, as well as adjusting the carburetor of the chainsaw calm 180 with your own hands, is possible.
First, it is worth deciding why it may even be necessary to adjust and repair the stihl ms 180 carburetor at all. So, this must be done in the following cases:
This list can be continued for a long time, but we have identified the main reasons. Before proceeding with the adjustment, you need to know what the main parts are. carburetor on the chainsaw calm 180, and who produces it.
So, the stihl ms 180 carburetor is developed and manufactured by a subsidiary of Stihl, called Zama. Original carburetors have a company logo on their body, which guarantees the quality of products.
A fuel pump is installed directly in the carburetor body, which operates under the action of an air pulse from the crankcase of the chainsaw, which is transmitted through special channels. A diaphragm is installed in the pump, it is she who is responsible for pumping fuel under the action of an impulse. A gasket is installed between the diaphragm and the body, which is responsible for the tightness of the fuel pump.
In the distribution chamber, as in the fuel pump, there is also a membrane that opens and regulates the fuel supply by pressing a special rocker arm, which raises its needle valve.
The cover of the chamber is the compensator body, which is attached to the carburetor with four screws; a gasket is installed between the body and the cover, which increases the height of the chamber and is responsible for sealing.
The fuel injector is mounted in the carburetor body in such a way that it is a connecting link between the distribution chamber and the cavity in which the throttle valve is installed. Simultaneously with the fuel, air is supplied to the nozzle and an air mixture is formed. The injector has a check valve that blocks the flow of air in the reverse sequence, that is, from the throttle chamber to the distribution chamber.
The throttle valve is installed in the carburetor body and is responsible for increasing the supply of the fuel mixture directly to the engine cylinder. At the moment of pressing the gas, the throttle valve opens slightly, thereby increasing the throughput of the channel and the fuel from the carburetor cavity, rushes into the cylinder in a larger volume.
Combustion of a larger volume of fuel increases the amount of generated energy, which affects the power and speed of the processes. The damper is installed on the shaft passing through the entire carburetor body. At the exit of the shaft from the body, a mount for the gas cable is installed, next to it is a cone-shaped adjusting screw responsible for adjusting the idle speed. By tightening the screw, you can slightly adjust the position of the shaft and the damper installed on it, thereby increasing or decreasing the idle speed, slightly opening or vice versa closing the damper.
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the main Stihl 180 chainsaw carburetor malfunction .
The carburetor choke is installed on the opposite side of the throttle and is responsible for starting a cold engine, it is controlled by the engine control lever. For a cold start, the air damper is completely closed; for normal operation, it is opened.
The Stihl 180 chainsaw carburetor, indiscriminately, can only be adjusted by the number of idle revolutions. It is impossible to increase or decrease the fuel supply in different modes using special screws. The manufacturer restricts access to adjustments and does not install these screws. How to adjust the carburetor to the correct idle speed is described in great detail in the manufacturer's instructions.
In the event of certain malfunctions, and experience, increase or decrease fuel supply it is possible by increasing the clearance when opening the needle valve.
To increase the flow, the rocker needle valve in the distribution chamber, it is necessary to bend up, and to decrease, down. This regulates the stroke of the needle and, accordingly, the throughput of the valve.
You should not carry out the adjustment yourself, since this must be done very accurately and in case of an error it is almost impossible to return the original position of the rocker arm.
After we have examined the carburetor device, it will not be difficult to determine the reason why fuel enters the combustion chamber in a larger volume. This is due to the wear of the gasket between the compensator cover and the carburetor body. How can this affect you, you ask?
The answer is simple, by contracting, the gasket releases the diaphragm on top of it a fraction of a millimeter down. She, in turn, will press harder on the rocker needle valve , it will open more than it should be and the fuel will be supplied in excess (it will start to overflow).
Another reason is the stretching of the diaphragm itself, this occurs as a result of natural wear and tear. It is impossible to prevent this process, but you can solve the problem by periodically changing all the gaskets, carburetor diaphragms, and the fuel pump. There is a repair kit for this.
When cleaning the chainsaw with compressed air, never blow into the fuel pipe, as this can stretch the diaphragm.
A common reason for the failure of the carburetor on a chainsaw calm is the sticking of the valve in the nozzle. The reason for sticking is a violation of the storage of the chainsaw, or rather the manufacturer's instructions Calm 180 on the correct preparation for storage.
As follows from the instructions, before long-term storage, it is necessary to drain the fuel from the tank, then start the saw and burn the gasoline from the carburetor. Failure to comply with this elementary rule entails the following consequences. The forsknui valve, being in direct contact with the fuel, sticks to the body, since the gasoline evaporates little by little and only sticky oil remains. It is impossible to replace the nozzle, since they are not in the repair kit, you can only try to knock it out and rinse it, which is not always possible to do without damaging the nozzle.
In cases where it is necessary to clean the Stihl 180 carburetor or disassemble it, first you need to remove the unit from the chainsaw. This must be done in compliance with a certain algorithm of actions:
Put the protective cover for the chainsaw on the tire.
Remove the top cover of the chainsaw.
Remove the two nuts securing the air filter and carburetor.
Remove the air filter housing.
Disconnect the wire from the engine control lever.
Carefully remove the lever from its seat in the housing, while simultaneously disconnecting the choke rod from it.
Pull the carburetor towards you and disconnect fuel supply as well as throttle thrust.
To facilitate dismantling, you can additionally untwist the rear handle and disconnect the throttle rod first from it, and then only from the carburetor. This may be required because.without some experience, disconnecting the rod from the carburetor is quite problematic and it is easier to disassemble the handle first.
To install the part in place, follow the reverse order of the algorithm.
When removing and installing the chainsaw engine control lever, you should be extremely careful, since the seat on the saw body is the weak link of the saw, and very often inexperienced users break it.
In order to purge, change gaskets or the needle valve, the carburetor must be disassembled. To do this, unscrew 4 screws on the expansion joint cover and one on the fuel pump.
Having opened the case, you should be extremely careful, because if debris gets into the inside of the carburetor, it will make its work impossible. The thickness of the channels in it is comparable to the thickness of a thread or even a human hair.
A video for repairing a calm 180 carburetor can be viewed below. In it, the master tells in detail about the problems and clearly demonstrates the entire repair process.
In conclusion, I would like to note once again that the Stihl carburetors, which are manufactured by its subsidiary Zama, are very reliable. With proper operation and storage, they are able to serve the entire period allotted to the chainsaw without repair.
1) Malfunctions of the STIHL MS 180 chainsaw: The gas key sticks, and over time the gas key stops moving altogether. Cause: A build-up of translucent resin on the carburetor throttle shaft, causing the throttle mechanism to jam. Tar is formed when gasoline dissolves a poor quality air damper coating. Chainsaw troubleshooting: Clean the throttle valve shaft of the carburetor with acetone, and tin the air damper itself.
2) Chainsaw malfunction: The chainsaw does not pull. Cause: Clogged carburetor. Chainsaw repair: Dismantling the chainsaw carburetor and cleaning it. Special attention when
cleaning the carburetor should be given to cleaning the additional filter (mesh in the carburetor of the chainsaw) - remove the largest cover on the carburetor, remove the membrane under it and clean the mesh in the recess from dirt (carefully so as not to lose this mesh). Of course - clean it with a thin copper wire, rinse and blow through all the channels in the chainsaw carburetor.
3) Chainsaw malfunction Calm 180: The idle speed of the chainsaw has increased (idle speed adjustment is not effective and not stable). Cause malfunctions: Air leaks through the crankshaft oil seals or elsewhere. Chainsaw troubleshooting: Replace the crankshaft oil seals and check for other possible suction points.
4) Chainsaw malfunction: After disassembling the carburetor, the chainsaw starts up with difficulty, white smoke is pouring from the muffler. Cause: When disassembling the carburetor, we lost the spring under the needle lever, as a result, the needle does not block the fuel supply and “fills” the spark plug with gasoline. Chainsaw troubleshooting: Find and place the spring under the needle lever in the chainsaw carburetor.
5) Chainsaw malfunctions: The chainsaw does not start well, does not work well. Cause : "Fills" the spark plug with gasoline due to the sticking of the needle in the carburetor or the rocker arm is raised high. DIY chainsaw repair: Flush and blow out the carburetor, align the rocker arm correctly.
This is either sucking in air somewhere, or something is clogged.
The main ways to troubleshoot a STIHL MS 180 chainsaw are to disassemble, wash and blow out the carburetor, change the fuel filter in the tank, check the fuel hoses for cracking (they can suck in air). There is only one adjusting screw on the carburetor - idle speed (it happens, he turned it, and the chainsaw started working again). The connection of the carburetor to the cylinder, in terms of air leakage, is reliable - there is a plastic ring (no gaskets are needed).
Immediately after starting the chainsaw, it works at increased speeds, and if you press the gas, then instead of starting to accelerate, it “chokes” and even stalls. Or it starts poorly, does not pick up speed and stalls (this chainsaw malfunction also applies to other expensive chainsaws with an accelerating pump in the carburetor).
The reason for the malfunction of the chainsaw: Wear of the rubber cuff on the piston of the accelerating pump in the carburetor (fuel booster). This leads to air suction by the accelerating pump and the main jet feeds a lean air-fuel mixture into the diffuser (there is little gasoline in the mixture) and the chainsaw first runs at increased speed, and then “chokes” and stalls. This happens after 2-3 years of operation and usually happens during the hot summer months.
Remove the carburetor from the chainsaw. Remove the fuel pump cover with the membrane by unscrewing one screw in the center of the cover. Then turn the carburetor towards you with the throttle valve, on the side where there are two holes, a pin is visible in one, and the accelerator pump is located under it. Remove the retaining ring from the outside of the pin and disconnect the choke spring wire. Unscrew the screw in the center of the throttle valve, remember how the throttle valve stands (so that it can be installed later) and remove the throttle valve. Plug the hole with the pin with your finger (the accelerator is spring-loaded and if you remove the throttle shaft and do not close the hole, the accelerator will pop out), then turn the throttle shaft and remove it. Shake out the accelerator (piston) with a spring from the hole. There is a rubber cuff (ring) on the piston - its wear is the cause of the chainsaw malfunction. It is necessary to replace the piston with a rubber cuff and a spring (they are sold as a repair kit). Or you can take out the worn piston with a spring, and plug the hole by pushing a rubber plug into it (the chainsaw will not have an accelerating pump, i.e. it will accelerate not in 3 seconds, but in 4 seconds, but it will work well since there will be no suction air carburetor).
Assembly after eliminating the malfunction of the chainsaw (after eliminating the malfunction of the chainsaw carburetor) is carried out in the reverse order of disassembly. When assembling the throttle valve, before tightening the screw, the throttle valve itself must be correctly set so that it does not jam, and the thread of the throttle valve fastening screw to the axle should be degreased and smeared with a special thread sealant (sold in small tubes, red, liquid) or flattened with pliers, because if this bolt is unscrewed during operation, it goes straight into the cylinder) and repair or replacement of the piston cannot be avoided). So we examined the elimination of this chainsaw malfunction.
All of the above applies to any models of chainsaws, including petrol trimmers, scythes and other equipment. Adjusted, of course, for design features.
There is an opinion that it is better not to climb inside the chainsaw on your own. For those who are used to working with a hammer and sledgehammer, perhaps this is so. Otherwise, any neat person who does not shake his hands can fix any problem with his work. In general, this is a job available to anyone.
Of course, it happens that the problem cannot be solved on its own. And you need to contact the service center. But firstly, 90% of faults are usually solved by simply flushing the nozzles or, in the worst case, replacing the membranes or adjusting the needle, and secondly, in the worst case, even if you are desperate, the carburetor removed from the saw can be easily replaced. The new original is, of course, a little expensive. The price for an analogue made in China is 700-800 rubles, you can buy it in a well-known store or from Russian dealers. In general, there is nothing to lose - we climb into the carburetor!
Let's make a reservation right away - diagnostics is an insidious thing. Sometimes the same symptom occurs due to completely different reasons. But we will check everything and find it together. So:
The idle jet may be clogged. Cleaning is required. How to do it - more on that below. But for now, let's talk about alternative reasons.
It is possible that the problem is in the fuel system. Check fuel hoses, fuel supply.
Sometimes problems with rpm (or rather their absence) are solved by cleaning the fuel tank check valve (gasoline tries to leave the tank, but air does not return instead). It looks like the one shown below in the picture:
Do not forget to readjust the carburetor in the only possible way - to change the amount of air supplied, which affects the idle speed very strongly. Everything is described in the instructions for the saw. For those who are too lazy to go into the instructions, here's a screenshot:
A special case of the previous problem. The solution required is the same.
Two very subjective indicators. In order to reliably state this or that, instrumental measurements are needed. From the practice of repair organizations, quite subjective things are often given out under one or the other. In some cases, blunt circuit effects can be mistaken for power loss. Naturally, performance in this case will be low. The saw sometimes seems to be quieter (blockages in cooling system, exhaust system). Increased fuel consumption can be caused by fuel leaks.
Often the problem is the muffler, not the carburetor!
Problems with the carburetor (how to fix and diagnose - below);
Overheating - cooling problems. Clean your saw;
Lack of air supply;
The chainsaw starts to stall or changes speed when tilted to the side. In the vertical - everything is fine, when turning - the revolutions fall (or grow) and it stalls
It is associated with the design features of its fuel system, filling the chambers. In addition, it is imperative to check the gas pump - sometimes the problem may be in it.
First of all, you need to understand that the carburetor of any engine is a unit into which the flows of air and gasoline converge. Therefore, for its normal operation, these streams must come in a working order, not clogged. In addition, the combustion products in the engine must freely leave the chamber through the muffler. Therefore, every time, before repairing and adjusting the carburetor, we must check:
Intake air filter;
We remove and clean the muffler;
We check the absence of problems with the fuel system - supply hoses, serviceability of the gas tank (operation of the low pressure compensation breather, see above);
In principle, it is not even so vital to turn the idle speed. Serviceable elements will already give normal performance characteristics.
The removal process is best shown in the video attached below. It also demonstrates the basic minimum steps in order to bring the node into working order. Schematically, this process looks like this: remove the cover, rods, unscrew the unit.
A significant part of the problems with the unit are associated with hardened or faulty carburetor membranes. The easiest way is to replace them if it has not been done for a long time. In workshop stores or on Aliexpress, whole repair kits are sold (their cost is about 200 rubles), containing all the necessary membranes. Sometimes, for an amount of about 600 rubles, you can buy yourself spare parts for the entire life of the chainsaw (see fig.).
Moreover, in this particular case, the kit also includes a rocker arm with a needle, which are also subject to wear and in some cases require replacement. In short, for the price of a new unit, the old one can be repaired almost an unlimited number of times. If we assume that five is actually a lifetime set.
In some cases, the following method gives excellent results - we take out the carburetor, remove all the membranes (top and bottom), and then leave what is left to soak in acetone for several hours.Often, foreign objects and substances simply get into the jets and channels (sometimes, for example, traces of sealants are found there!). Therefore, simple cleaning has an excellent effect. No costs and no membrane changes. Although the decision to replace them must be made locally, guided by their condition.
Surprising as it may seem, it is quite. This unit has practically only one requirement - the accuracy of its manufacture. In terms of geometry, as a rule, everything is fine with him. It does not bear any excessive mechanical or chemical loads. Therefore, a simple replacement may well be an appropriate option to permanently extend the life of a chainsaw that costs quite decent money.
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Despite the many varieties of modern building materials, wood remains the most demanded. In this regard, chainsaws are in great demand among fellers, owners of their own houses and summer residents.
Among the huge variability of the model range, the most popular among both amateurs and experienced foresters for many years has been the calm 180 chainsaw, which is distinguished by its simple maintenance, repair and operation. The Stihl company was founded more than 9 centuries ago and began production of gasoline chain saws back in 1926. Thanks to many innovations, simplicity and durability, the tools of this manufacturer are in demand on the world market of woodworking equipment.
Before starting work on the diagnosis of malfunctions and their elimination, it is necessary to prepare the necessary tools.
General view of the Stihl MS 180 chainsaw with the main units
Due to the fact that the chainsaw is a relatively simple unit, the list of accessories includes the following items:
a set of flat and Phillips screwdrivers;
open-end locksmith keys;
candle key;
set of sockets with a knob
Multifunctional tool Stihl.
Multifunctional tool calm
In order to qualitatively eliminate the emerging breakdowns and restore operational indicators, it is necessary to establish as accurately as possible the malfunction preceding the failure of the unit. Following from the fact that the chainsaw is equipped with an internal combustion engine (ICE), the main causes of breakdowns should first of all be looked for in the power unit.
Before starting work, it is necessary to turn off the engine, let it cool down and exclude the possible start of the chainsaw. It is recommended to wear cotton gloves to protect your fingers.
The most common faults when repairing a chainsaw calm 180 include:
the engine does not start;
the operation of the motor is intermittent, with a short operation of the chainsaw, it spontaneously stalls;
oil leaks near the chain lubrication mechanism;
the engine does not develop full power.
Frequent breakdowns of the transmission part of the saw include rupture of the chain links. You can independently restore its integrity by riveting the links or replacing it with a new one.
Despite the relative simplicity of the design and the absence of complex mechanisms, experts recommend searching for faults in a specific order. First of all, the presence of a mixture in the fuel tank is checked, and if everything is in order with the liquid level, it is necessary to proceed to inspecting the chainsaw start unit. If this mechanism is also in good condition, it is necessary to check the performance of the spark plug.
After the performed manipulations to diagnose the spark plug (determining the presence or absence of carbon deposits, the correct gap between the electrodes, the state of the sealing ring), we turn our attention to the carburetor. Small sawdust, dust and soil particles often clog the fuel system.
If cleaning the carburetor of the stihl 180 chainsaw did not help to restore the previous performance of the unit, the reason probably lies in the cylinder-piston group (CPG). The power unit belongs to the most complex mechanism of the tool, the diagnosis of which requires almost complete disassembly.
The first step in diagnosing the fuel supply system is to check the level of the fuel mixture in the tank.
The main nodes of the fuel system of the chainsaw 180 calm
Even if the owner is confident in the presence of gasoline, this allows you to eliminate the vacuum created as a result of a clogged bypass valve. It is designed to optimize the pressure in the tank with fuel consumption. For the convenience of cleaning the breather, chainsaws use a regular medium-sized sewing needle.
When inspecting the fuel system, you should pay attention to the integrity of the pipes, the tightness of which can be violated by mechanical damage or prolonged operation of the unit. Sometimes the cause of the mixture flowing out and, as a consequence, the incorrect operation of the engine, is the wear of the rubber gaskets and the primer (suction button). In this case, to repair a calm 180 chainsaw with your own hands, you need to purchase a repair kit of seals and replace them.
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The cause of problems with a chainsaw of this model may be the inoperability of the ignition system and the engine start unit.
General view of the ignition of a chainsaw 180
If, when measuring the gap between the flywheel and the module, no deviations are found, you must pay attention to the spark plug.
Most manufacturers, including calm chainsaws, recommend setting a clearance of 0.2 mm. This requires a coin, coin wire, or flat dipstick, which can be purchased at any automotive store.
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Chainsaw starter Calm 180 assy
Having dismantled the candle from the mine, we measure the gap of the chainsaw candle between the central and side electrodes. If its value is excessive (more than 0.7-1.5 mm), a spark may occur periodically, and if it is minimal (less than 0.7 mm), it may be insufficient for optimal ignition of the fuel mixture.
If gasoline enters the combustion chamber, and no inconsistency in the ignition system has been identified, the carburetor may be the likely cause of failure. This unit is designed to mix fuel with air and supply them to the cylinder. After dismantling the carburetor, we clean its channels and jets using universal tools.
It must be remembered that the carburetor consists of many small parts, and therefore its dismantling, disassembly and cleaning require special care.
After diagnosing the ignition system of the chainsaw calm 180 and its restoration, we proceed to troubleshooting the power unit, namely in the cylinder-piston group of the saw.
During operation, parts of the cylinder-piston group of the saw fail due to friction forces, high temperatures and loads. If the tool does not reach full power at startup and stalls at idle speed, a possible problem could be damage to engine parts. To disassemble the power unit, it is necessary to unscrew 4 bolts and remove the cylinder. The owner is required to carefully inspect its inner work surface for chips, nicks and cracks.
Even the slightest damage to the "mirror" of the cylinder can negatively affect the compression of the chainsaw engine and its performance.
Cylinder-piston group of the Stihl MS180 chainsaw
When diagnosing an internal combustion engine, we also perform a visual inspection of the piston and compression rings. Made of aluminum alloy and cast iron, respectively, they are more exposed to abrasion loads than a steel cylinder. In case of breakage and excessive wear of the piston rings, they must be replaced.
If, upon visual inspection, the ovality of the cylinder working surface is observed, it will need to be bored. To do this, we measure its diameter over a larger size, select the piston and perform the subsequent machining.
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In the process of sawing wood, the cutting part of the tool is subjected to high loads. In order to reduce frictional forces and the subsequent wear of the chain, the chainsaw calm is equipped with a lubrication system that gradually supplies oil to the tire.The rapid loss of cutting properties by the teeth and the absence of traces of lubricating fluid may indicate its leakage or clogging of the pipes.
Stihl 180 chain lubrication principle
First of all, when diagnosing the chain lubrication system for the ms 180 chainsaw, we pay attention to the oil supply hoses and their fixation points. Damaged connections cannot be repaired and must therefore be replaced. The oil passages can be cleaned with compressed air. For these purposes, we use a compressor or an ordinary car hand pump.
Due to its ease of operation and repair, the chainsaw of this model has gained wide recognition among professionals and amateurs in the field of woodworking.
Chainsaw "Shtil 180" has proven itself well in the construction market. This portable device has a power of 1400 W and a motor volume of 31 cc. see The length of the saw chain is 350 mm, at idle speed it makes more than 2 thousand revolutions. Its popularity among consumers is also explained by the acceptable cost of the tool. However, when using a chainsaw, malfunctions occur from time to time. In the service, repairing a tool is not cheap, so those who understand at least a little technical issues fix breakdowns with their own hands.
The operation of the tool must be carried out in accordance with the instructions attached to it. Include start button only after the chain tension, the presence of a fuel mixture and oil have been checked. Having securely fixed the chainsaw in your hands, you can get to work.
If the tool refuses to work, then first of all it is necessary to identify the cause of the malfunction. And the most common tools for repairing a chainsaw are suitable: various screwdrivers, socket and wrenches, hexagons.
Sooner or later, every tool owner will face this problem. The cause of this malfunction is a leakage at the junction of the oil pump and the hose from the oil tank.
To eliminate this problem, you will have to practically completely disassemble the chainsaw .
If the hose is damaged, it is best to replace it with a new one. You can try to fill it with sealant, after degreasing and rinsing.
Oil may leak if the saw oil filter is clogged or broken. It should be checked and cleaned or replaced.
If you believe the experts, then with such a problem, first of all, you just need to open and close the lid on the gas tank. After that, you need to make combustion chamber ventilation and remove and dry the candles. These actions are enough for the tool to start up and work. If the malfunction remains, then the cause should be sought elsewhere.
The fuel supply is affected by the breather. Therefore, if it becomes clogged, then a vacuum forms in the fuel tank and the saw will not start. The breather is very easy to repair - it should be cleaned with a needle.
Chainsaw "Calm 180" may not work due to cylinder breakage. If there are chips or irregularities on the cylinder, then the reason is in it.
If the tool does not start, holds power for a short time, or stalls immediately after switching on, then the cause of the breakdown may be in the muffler. It can be clogged by any deposits that occur during operation during the exhaust process.
The saw may start poorly due to a malfunctioning starter. To see it, remove the cover from the carburetor and twist the special screen located behind the chainsaw drum. If the contact wire has come off the starter, then it must be attached with a blowtorch. If the problem lies in an oil leak, then the starter is simply wiped with a cloth.
The reason for such a malfunction may be breakage of the cylinder-piston group , which is easy enough to repair with your own hands.
To remove the cylinder from the tank, four bolts must be unscrewed on its head. Then carefully check the piston, on which there should be no scoring, scratches, chips.If present, the piston will need to be replaced.
The optimal pressure in the combustion chamber is ensured by the piston and piston rings, which must sit tightly enough on the piston body. If the piston inserted into the cylinder has a free stroke during rocking, then this indicates its wear.
You can eliminate this defect by cylinder bore and installation of repair parts. However, it is easiest to simply replace the entire CPG set.
What to do if the instrument stops winding up, starts to stall, loses power, does not keep idling? Quite often, the cause of such breakdowns lies in the carburetor, which could become clogged with dust, dirt or sawdust. You can cope with this problem with your own hands.
All carburetors are cleaned in the same way, the main thing is not to be afraid and not to lose anything. For repairs you will need to prepare:
any brush;
Phillips screwdriver
head 8;
some gasoline.
First of all, with the help of a brush, dirt and dust are cleaned. Then the cover and filter are removed. The two nuts of the air filter are unscrewed, and the air collector housing is removed. The carburetor and throttle and throttle rods can now be seen. By lowering the throttle with your finger downward, you will need to remove the throttle lever.
To move the carburetor out of the seat, first remove the choke lever and completely close it. Now you need to remove and pull the engine stop wire. It is also necessary to remove the plastic arm to which the wire is attached. On the right, it is inserted into the hole, and on the left, it can be lifted.
The carburetor is released and can be removed and cleaned. It is best to do this with a compressor, but if it is not there, then the details can be rinse in clean gasoline .
Do not forget about the fuel filter, which must also be removed and the fuel hose blown through. Everything is put together in the reverse order.
If, after assembling the carburetor, the saw does not start well, and smoke comes out of the muffler, then most likely the spring under the needle lever has been lost. Due to the absence of this spring, the needle does not shut off the fuel supply, so the spark plug is “flooded” with gasoline. Of course, in order to eliminate this malfunction, you should find the spring and put it in place.
When repairing a carburetor, it should be remembered that it is a rather complex assembly, which consists of various small rings and parts. Therefore, it must be cleaned and repaired with extreme care and attention.
If the chainsaw does not start or stalls, then in addition to the carburetor itself, you should check spark plug performance ... If it is faulty, then it should be unscrewed and dried. Also, excess fuel must be drained from the spark plug through a special hole.
It must be remembered that drying must be carried out for at least thirty minutes, after which the candle is installed in place and the tool starts up.
The cause of the malfunction may be a weak contact between the end of the spark plug and the high-voltage wire. If you don't like the work of the candle at all, then it is better to replace it with a new one.
Such parts of the "Calm 180" chainsaw, such as anti-vibration elements, a chain, a tire, a drive sprocket, wear out faster than others. Therefore, it is recommended to keep spare parts in the workshop for quick replacement.
Eliminating the causes of chainsaw malfunctions with your own hands will, in any case, be cheaper than repairing a tool in a service workshop. In order not to puzzle over why the tool stopped working, you can watch a video instruction on how to eliminate various breakdowns of the "Calm 180" chainsaw. However, in case of serious breakdowns, it is better not to do the repair yourself, and entrust the work to a specialist.
Video (click to play).
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