STIHL 180 chainsaw malfunctions and their elimination
Repair tools STIHL 180
To carry out a relatively high-quality repair of the STIHL chainsaw ms 180 yourself, you will need to have:
- air compressor (for cleaning the chainsaw and blowing out the main components and assemblies);
- a vacuum gauge is necessary to check the tightness of the crankcase and carburetor, as well as to identify defective oil seals;
- piston stopper to limit the crankshaft travel;
- an electronic tachometer in order to properly adjust the chainsaw carburetor;
- T-key STIHL Torx 27 or equivalent;
- crankshaft bearing puller.
Only if you have these tools, do-it-yourself repairs to the STIHL 180 chainsaw can be performed with sufficient quality.
How to replace the starter cord
Quite often, the starter cord needs to be replaced due to a break. Let’s figure out how it can be replaced without contacting a service center.
Removing the starter from the STIHL 180 chainsaw is quite simple, without even removing the handle block; this will require unscrewing the fastening screws and removing the oil and fuel tank caps. After that, slightly lifting and expanding the starter, remove it from the seat.
The starter cord is wound on a special drum, which is installed in the body of the part. To replace the cord, there is no need to remove the drum, just remove the torn cord and wind a new one.
Replace with an original STIHL cord with a suitable cross-section. Thicker lanyard will reduce the number of times the cord is wrapped around the drum, resulting in reduced starter stroke.
After the cord is wound on the drum, it is necessary to pass it through the starter housing and, having installed the handle, fix it with the help of several knots made one after another. Next, the working stroke of the starter is checked, and if everything is in order, the part is installed in place.
Removing and disassembling the engine
The engine is held in place by 4 screws installed on the bottom of the STIHL 180 chainsaw. To remove them, unscrew them, then carefully remove the engine from the seat and the rubber pipe of the carburetor.
To disassemble the engine, 4 crankcase screws are unscrewed, and it is removed, then you can remove the crankshaft complete with oil seals, bearings and piston rings.
Removing bearings and seals usually does not require additional tools, but if the bearings were pressed onto the shaft with force, then a special puller will be needed for dismantling.
To remove the piston from the connecting rod, you will need to remove the retaining ring from the seat using a thin screwdriver, then the piston pin is squeezed out from the opposite side, after which the piston is retracted to the side.
Repair of the STIHL 180 chainsaw: malfunctions and their elimination
The STIHL MS 180 chainsaw is considered one of the most reliable in its segment. But the technique is the technique, and sometimes malfunctions occur, for the elimination of which it may be necessary to repair the STIHL ms 180.
You will learn more about the repair of units by reading the article.
Repair of any equipment should begin with the preparatory work, and the STIHL 180 saw is no exception. At the preparatory stage, before the STIHL 180 chainsaw is disassembled, it is necessary to remove the side cover, chain and tire from the chainsaw. Further, using a compressor and a brush, you need to clean the chainsaw from dirt, sawdust, oil drips and other things.
When cleaning the saw, pay special attention to the place where the chain saw drive sprocket is located, since this is the most polluted area.
In places with a large accumulation of oil, can be washed with clean gasoline.
The chainsaw must be used according to the operating instructions, then it will last a long time and will not fail. All possible malfunctions of the STIHL chainsaw can be identified and eliminated by yourself. Consider the main problems that may arise in the components and design of the device, and how to repair the STIHL 180 chainsaw with your own hands.
Removing the handle
Direct disassembly of the STIHL 180 begins with the removal of the handle, which is attached to the body of the chainsaw using three rubber shock absorbers. To remove, it is necessary to remove the plastic plugs from the inner cavity of the shock absorbers, then, using a powerful screwdriver, first squeeze out the upper shock absorber, then the one closer to the rear handle.
At the back of the handle there is a gas trigger, which is connected to the carburetor through a wire rod, in order to disconnect the rod from the gas trigger, it is necessary to unscrew two screws and disassemble the handle.
When the handle remains on one shock absorber, it is necessary to unscrew the body of the chainsaw from the inside of the handle and bend it to the side, remove the body from the last rubber band.
STIHL 180 ignition adjustment
On STIHL MS 180 chainsaws, an electronic ignition system is installed, the adjustment of which is reduced to setting the gap between the flywheel and the ignition coil of the STIHL 180 saw. To adjust, remove the starter, loosen the two screws securing the ignition coil and install a strip cut from a plastic bottle between the flywheel and the coil contacts tighten the fastening screws.
To check the clearance, it is necessary to turn the flywheel and check if the contacts of the coil do not touch it.
Malfunctions associated with the intake and combustion of fuel in the cylinder are most often associated with improper operation of the carburetor. Typically, such a malfunction manifests itself in the form:
- The engine starts poorly or does not start at all.
- Interruptions in work, when you press the gas, the engine “swells” and stalls.
- Too high idle speed, the saw “roars”.
- Increased gasoline consumption.
- The saw does not develop the speed well.
It is not difficult to adjust the carburetor of the STIHL 180 chainsaw with your own hands. It has 3 adjusting screws. One is responsible for idling, and the other two for fuel. Usually a simple adjustment is enough to get the saw working again as expected. If this does not happen, then the carburetor should be cleaned with its complete disassembly.
The fuel filters, breather and tank should also be flushed before completely cleaning the carburetor. Otherwise, the entire system will clog again. For some reason, most people only flush the carburetor and ignore the rest of the fuel system. It is best to disassemble and adjust this element using the standard manual “Chainsaw STIHL 180 operating instructions”.
This manual describes in detail the diagram of the carburetor device, which has a difficult detail.
How to disassemble, repair and assemble a STIHL chainsaw
In order to repair the device, it must first be disassembled. You need to remove the side cover, saw chain and bar. Then clean the tool, blow it out with a compressor and clean all the components with a brush. Then remove the handle. To do this, remove the plugs from the shock absorbers using a screwdriver. After that, remove the shock absorbers and the handle.
Then the starter is removed. Remove the housing cover and unscrew the starter screws. The part is removed. Then remove the flywheel by unscrewing the nut that holds it, unscrew the flywheel nut. You need to twist to the left. Remove the flywheel. Then dismantle the clutch, oil pump drive and carburetor.
After that, the motor is removed and disassembled. It is held by 4 screws on the bottom of the saw. You need to unscrew them and remove the motor. Then the engine itself is disassembled. Unscrew the crankcase screws, remove it. Then dismantle the crankshaft, oil seals, bearings and piston rings. At the end of the disassembly, repairs and troubleshooting are performed.
After repair, the tool will need to be reassembled. To do this, install the piston on the connecting rod. The arrow on it should look along the chain, and to the left of the piston will be the side of the crankshaft in which you want to mount the flywheel. They put the piston in the cylinder. Install the bearings, oil seals and circlip into the cylinder. After that, degrease the place of fixing the crankcase and install it in its place. When reassembling, follow the reverse sequence of dismantling.
If the chainsaw does not start, then the cause may be a breakdown of the ignition and engine start unit. If, when measuring the gap between the module and the flywheel, no deviations are found, then the spark plug should be checked. It is pulled out of the shaft and the gap is measured. If fuel enters the combustion chamber, and there are no breakdowns in the ignition system, then the carburetor is faulty.
The chain is not lubricated
When repairing a chainsaw, you will notice that no oil gets on the chain. If the chain is not lubricated, then there are interruptions in the lubrication system. There are such malfunctions:
- The chain is dry, light shade.
- The chain stretches too quickly.
- The tire is too hot and the paint has melted on it.
- Oil does not decrease in the tank.
- With a sharp chain, the saw has become worse to cut.
Such signs indicate that there has been a violation of the lubrication process. To check the oil supply to the lubrication unit, you need to remove the tire and turn on the chainsaw. Then increase the speed and observe the end point of the oil line. If the oil is running, it means that its volume is not enough for proper lubrication. If there is no supply, you need to clean the filter. You should also adjust the oil flow. In the absence of malfunctions, further diagnostics and do-it-yourself repairs are required. If it turns out that the substance is not being supplied, then the oil system is repaired.
Consider the main malfunctions and methods for their elimination:
- Broken oil hose. This can be seen on examination. In this case, it is necessary to replace the hose.
- If there is no thread on the shaft of the oil pump, then it should be replaced.
- If there are defects in the thread, then it must be replaced.
- If there is no corkscrew of the main shaft, then a nail of the same diameter can be installed in its place.
- The filter may be clogged. This happens frequently with the STIHL MS 180. You can wash it off with gasoline. If this does not fix the problem, then the filter should be replaced.
The STIHL 180 chainsaw often has a leak in the oil line. This occurs where the oil line from the tank is inserted into the tool body. Breakage can be detected by oil leaks at the bottom of the saw.
To fix the problem, you need to remove the saw handle, pull out the hose. After that, you need to clean the hose. Then apply sealant to it and put it in the tool body.
Repair and replacement of the oil pump
Consider how to change the oil pump. If the element leaks, then the gasket between the two parts should be renewed. If this part of the oil pump is not damaged, then it must be wiped and put back. Now they check the hose. There should be no cracks on it. If the hose is damaged, replace it. Then the outlet channels are cleaned with a compressor.
How to remove the clutch
Remove the drive sprocket before unscrewing the clutch. Remove the corkscrew washer and remove the sprocket and needle bearing. Unscrew the clutch. Remove the baffle plate and pump.
Doesn’t develop momentum
If the saw does not maintain idle speed, then the following may have happened:
- clogged filter;
- violation of the ignition system;
- the carburetor has deteriorated;
- parts of the motor are deformed.
For self-repair, you need to follow these steps:
- Flush or replace fuel hose.
- Clean filter.
- Check the quality of gasoline and oil.
- Check the operation of the carburetor and spark plugs.
When STIHL chainsaws are repaired, they will work correctly.
If the saw is not gaining momentum, then this could lead to:
- faulty engine;
- cylinder wear;
- failure of piston rings;
- breakage of the spark plug;
- coil malfunction;
- unbalance of carburetor screws.
If, after testing, no defects are found, then check the carburetor.
General recommendations for use
When buying a new chainsaw, you need to run it in. When operating in cold seasons, the engine must be warmed up before intensive work. During work, do not overheat and take breaks to cool the saw. You need to do everything correctly and monitor the oil and fuel level. Sometimes users have a question, what other oil can be used for this saw? Do not fill in other brands of oils, but use only the one recommended by the manufacturer. Do not disturb the fuel ratio. Do not use longer saw bars, this will not have much effect, but will cause intense wear on the chainsaw.
How to repair your STIHL chainsaw with your own hands
- Main types and diagnostics of defects, tools for their elimination
- Malfunction of the fuel supply system
- Elimination of defects in the trigger
- Chainsaw cylinder-piston group malfunctions
- Malfunctions in the lubrication system and their elimination
With all the variety of modern building materials, the tree species remains very vital. Therefore, woodcutters, workers of landscaping services, summer residents are interested in tools for woodworking, including chainsaws.
The STIHL chainsaw is easy to operate, inexpensive, reliable, has a long service life.
Different people prefer different brands. Someone is interested in a Partner chainsaw, someone is interested in a STIHL device, someone else is interested in something else. But they all break down periodically, while their breakdowns are both similar and different. Next, let’s see the repair of the STIHL chainsaw with our own hands.
How to fix a flooded STIHL Chainsaw Engine
This brand is well known both among experts and among personalities involved in arranging their own living space. The great popularity of the STIHL chainsaw determines the frequent practical use of this tool and forces you to find methods for effectively dealing with its usual breakdowns.
DIY STIHL chainsaw repair
The STIHL chainsaw, the MS 180, is primarily used for timber harvesting and various construction work. Such equipment is used very often due to the large list of functions and capabilities. The main feature of this model is the reduced vibration, which is very important. Naturally, during operation, the chainsaw may fail, which means that you will have to repair it.
Checking the ignition system
In case of various equipment breakdowns, it is always necessary to pay attention to the spark plug. To do this, carefully connect the wires, and then turn the element out using the appropriate key. Then you need to assess the condition of the candle.
- If it is dry, then this indicates that no fuel has entered the cylinder. Accordingly, the problem is not related to the candle.
- In the case when such an element is splashed with fuel, it is worth making sure that the carburetor starts correctly. The same applies to adjustment. The candle itself is carefully wiped, and then the gasoline supply is shut off and the starter is started. This will help get rid of excess fuel and at the same time ventilate the combustion chamber. After that, the candle is screwed into place and the mechanism is started again.
- If black carbon is visible on this element, then, most likely, low-quality oil was used when using the STIHL chainsaw. Also, the cause may be an incorrect fuel to oil ratio or incorrect carburetor adjustment. In this situation, the candle is carefully washed, then the carbon deposits are removed with a sharp knife or needle and the electrodes are wiped. In the process of checking the spark plug, it is important to make sure that the distance between the electrodes is no more than 0.5-0.65 mm.
As mentioned earlier, black carbon deposits can be seen on the candle when viewed. In this case, experienced craftsmen recommend checking if a spark arises. For this purpose, the ignition cable is fixed to the candle, after which the nut and the cylinder are connected by means of pliers. Then it remains to start the chainsaw starter. If the spark does not occur, the spark plug will have to be replaced. In a situation where the use of a new element is also ineffective, it is necessary to check the high-voltage wires and the connection with the candle.
A feature of the carburetor of the STIHL chainsaw is the presence of one screw, which is responsible for adjusting the idle speed. When using the equipment, you should always pay attention to the idle speed. A few simple steps will help to adjust this: checking the air filter, as well as the spark protection grille.
It should be noted that repairing the carburetor of a STIHL chainsaw is considered a laborious process. If for some reason it stopped starting, you must do the following:
- open the gas tank cap and then close it;
- remove and dry the candle;
- ventilate the combustion chamber.
If these actions were unsuccessful, pay attention to the fuel supply air filter and the functioning of the spark plug. If, in your opinion, the problem was caused by a malfunction of the carburetor, then the chainsaw purchased with a guarantee is best returned to service immediately. This is due to the fact that it is quite difficult to disassemble it yourself.
Repair of the fuel supply system
When using a STIHL chainsaw, some people complain that fuel stops flowing into the cylinder. This problem can occur due to several reasons.
- Dirty filter. In this case, it is necessary to remove the hose and pay attention to the fuel stream. The filter itself is carefully cleaned or replaced with a new one. For preventive purposes, it is recommended to replace this element every 3-4 months.
- Clogged breather. Disconnecting the hose will help to make sure that this is the cause of the problem. If a blockage is found, use a needle or other small, sharp object.
- Lack of fuel or insufficient amount of fuel. This is due to a clogged filter. Separately, it is worth mentioning an incorrectly adjusted chainsaw carburetor. To eliminate the problem, it is recommended to perform the adjustment again using the appropriate screw.
To ensure that fuel always flows into the cylinder, the fuel filter should be periodically cleaned and replaced. You also need to make sure that the hose with the drive is tight and the diaphragm is not damaged.
It should be noted that for the correct functioning of the STIHL chainsaw, it is necessary to select high-quality fuel. over, its amount must correspond to the rate recommended by the manufacturer itself.
The STIHL MC 180 chainsaw is a fairly simple unit. Despite this, the repair of equipment often causes a lot of difficulties, because one malfunction can occur due to a large list of reasons. Accordingly, before you decide to proceed with the repair, accurately diagnose the breakdown.
Chain oil leaking
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 almost 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.
Basic malfunctions and ways to eliminate them
The operation of the tool must be carried out in accordance with the instructions attached to it. The start button should be turned on 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.
Chainsaw engine runs intermittently
The reason for such a malfunction may be a breakdown of the cylinder-piston group, which is quite simple 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 during rocking has a free stroke, then this indicates its wear.
This defect can be eliminated by boring the cylinder and installing repair parts. However, the easiest way is to simply replace the entire CPG set.
If the chainsaw won’t start
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 ventilate the combustion chamber, and also 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 looked for in another.
- 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 repaired very simply. it should be cleaned with a needle.
- The STIHL 180 chainsaw may not work due to a broken cylinder. 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.
DIY repair chainsaw “STIHL 180″ instruction
The STIHL 180 chainsaw has proven itself well in the construction market. This portable device has a power of 1400 W and a motor volume of 31 cc. cm. 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.
Chainsaw carburetor malfunctions and repairs
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.
Китаец против Штиль МС 180
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. You can now see the carburetor and throttle and throttle rods. By lowering the throttle with your finger down, you will need to remove the accelerator 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 pulled out and cleaned. It is best to do this with a compressor, but if it is not there, then the parts can be washed in clean gasoline.
Do not forget about the fuel filter, which also needs to be removed and the fuel hose blown out. Everything is going in 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, remember 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 the performance of the spark plug. 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.
Parts of the STIHL 180 chainsaw, such as anti-vibration elements, chain, tire, 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 STIHL 180 chainsaw. However, in case of serious breakdowns, it is better not to do the repair yourself, and entrust the work to a specialist.