Oil pump Shtil 180: device, breakdowns, replacement

Repair tools Shtil 180

To carry out a relatively high-quality repair of the Shtil MS 180 chainsaw 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 seals;
piston stopper to limit the stroke of the crankshaft;
electronic tachometer in order to correctly adjust the chainsaw carburetor;
T-key STIHL Torx 27 or equivalent;
puller for crankshaft bearings.

Only if you have these tools, do-it-yourself repair of a Shtil 180 chainsaw can be done 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 you can replace it without contacting a service center.

Removing the starter from the Shtil 180 chainsaw is quite simple, without even removing the handle block; to do this, you will need to unscrew the mounting screws and remove the covers of the oil and fuel tanks. Then, slightly lifting and turning the starter, remove it from its 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 broken cord and wind a new one.

After the cord is wound on the drum, it is necessary to pass it through the starter body and install the handle and secure 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.

A video showing how to replace the starter cord yourself can be viewed below. The master comments in detail on all stages of the replacement, starting from removing the starter and ending with installation.

Preventative maintenance of chainsaws

Sharpening the saw is done independently using tools and a file or on a sharpening machine. It is produced when cutting edges are worn out or minor chips on the teeth.

Filters are changed periodically in accordance with the manufacturer's recommendations. Air, oil and fuel cells are subject to renewal.

Spark plugs are replaced after a certain time, guided by operating requirements.

Refueling. Different manufacturers and engine types determine the composition of the fuel mixture - a 2-stroke or 4-stroke gasoline engine is filled with gasoline with or without the addition of oil.

Operational and technical characteristics

As for the technical and operational characteristics of this chainsaw, they are in many ways superior to all modern market analogues. Find out how to properly break in a chainsaw here.

The design of the Stihl 180 chainsaw is manufactured in such a way as to achieve maximum impressive results, without causing any discomfort during operation. The device is completely vibration-free and does not tire the operator’s hands.

STIHL MS 180

The handle that surrounds this tool sits tightly on 3 shock-absorbing blocks made of rubber, which is also very convenient for using a chainsaw.

Chainsaw Shtil ms 180 has the following specific characteristics:

The maximum working volume is 31.8 cm³;
Nominal weight is only 3900g;
Power level is 1.5 kW / 2.0 hp;
Tire 0.35 m long;
Characteristic Oilomatic type chain with a pitch of 3/8 “P (PMC3);
Tank with a volume of 250 cm³;
Idle speed is 2800 rpm;
Specific gravity – 2600 g/kW;
The permissible vibration level is 6.6 to the left and 7.8 m/s2 to the right;
Sound pressure is 97.0 dB;
Sound power – 106.0 dB.

It is easy to operate and does not require additional maintenance other than timely lubrication (if you do not take care of the lubrication in time, it is quite possible to “kill” both the tire and the chain itself).

It is worth noting that the two-stroke engine of this unit is designed in such a way that it runs on a gasoline-oil mixture. It is necessary to add only high-quality oil to gasoline for STIHL chainsaws. You can read about which oil to use for a Stihl chainsaw here.

The quality of these operational elements will largely determine the impact on the operation and service life of the entire system.

Chainsaw Shtil 180 instructions provide for strict adherence to all rules of its operation

This is important for warranty repairs and also for extending the service life of the chainsaw. It is very important to use good chainsaw chain oil.

Repair of STIHL MS 180 chainsaw. No oil supply.

main reasons why not

Stihl
oil arrives .

Chainsaw fuel system: 1 – fuel filter, 4.5 – carburetor, 3 – manual preparatory pump.

If the carburetor is adjusted correctly, fuel will be consumed in the permissible amount. Otherwise, it will end very quickly.

Slowly reducing fuel during use of the saw is a common process. If it is missing, the chain is not lubricated correctly, so working with the chainsaw will be smooth. It is necessary not only to be able to eliminate breakdowns, but also to identify them without the help of others.

There is an option to change the fuel supply manually. The correct operation of the lubrication complex of accounting programs is determined by the method of applying the tire. If oil splashes appear, it means that all that remains for our client to do is set it up correctly.

Features of disassembling and assembling a Stihl saw

Disassembling the Shtil saw involves several more nuances, one of which is the prohibited fixation of the flywheel from turning using screwdrivers, screws and other improvised means. This may cause its blades to break. Carry out fixation only in the manner indicated in the diagram. We talked about how to disassemble the Stihl 180, but there are also nuances of reassembling the chainsaw:

We install a piston on the connecting rod, to the left of which is the side of the crankshaft where the flywheel will be;
return the piston to the cylinder. Regarding elements such as a retaining ring, bearings or oil seals, we place them on the shaft and place them in the appropriate place in the cylinder;
degrease the crankcase and its seating area, coat it with sealant and secure it with 4 screws.

These are the nuances of reassembling the engine itself, during which difficulties may arise (if you disassembled it), all other parts are assembled in the reverse order step by step. Don't forget to check the installation of the rod on the carb and the connection of the ignition wire. Also, all the nuances can be viewed on video. The KoshiKosa petrol tool store is pleased to offer all its knowledge to each of our readers and customers.

Practical recommendations

Lubrication hole layout.

Before you start using chainsaws, you need to check the lubrication system of the chainsaw chain. For this purpose, it is necessary to hold the end of the tire by placing a sheet of paper under it. When the speed increases, an oily strip should form on the sheet.

Proper lubrication of the chain greatly increases the life of the chainsaw headset. If there is not enough oil, the device will operate dry. The cutting set will quickly break. The friction of the parts should be minimal, so all guides and hinge joints should be covered with an oily film.

When the chain moves along the guide bar, the lubrication system must provide a constant flow of oil. This function is performed by the oil pump. With its help, the required amount of oil is supplied to the guide bar and its groove.

The driving links of the chain spread oil over the total length of the groove. A guarantee of proper chain lubrication is considered to be:

fine tuning of the oil pump;
completely filled oil tank;
correct choice of oil.

Before starting work, it is necessary to constantly monitor the operation of the lubrication system. The correct supply of lubricant is determined by the sides of the chain; they must be lubricated at all times.

Basic parameters of a chainsaw chain.

The need for lubricants is always different. It all depends on what needs to be cut. When the length of the cut reaches large values, the tree has high hardness and thick bark, it is necessary to have a large supply of oil.

If the cutting set smokes or the chain stops, we can talk about a lot of heating. The main reason is lack of lubrication. Other reasons may be:

dullness of the chain;
strong tension.

Oil does not flow to the chainsaw chain: causes and solutions

When the saw chain of a chainsaw moves in the groove of the bar due to friction, a huge amount of heat is released. If oil does not flow to the chainsaw chain, you need to stop work and take all measures to eliminate the malfunction of the lubrication system. The combination of enormous loads and overheating of the headset is accompanied by its accelerated wear and premature failure.

Without exception, all chainsaws and their electronic analogues are equipped with systems of the same operating principle, the means of which are used to lubricate the bar, saw chain and its drive parts.
The standard composition of this device includes a reservoir from which chain oil is supplied to the pump inlet with a fixed or adjustable capacity.
Next, the working fluid in measured quantities enters the groove of the tire, in which it is moderately distributed by the shanks of the saw chain throughout the entire headset and the working surface of the drive sprocket crown.

Tires of productive sets with a length of four hundred mm or more are equipped with a driven sprocket. Repeated bearing lubrication is done personally, after 6-8 hours of operation.

Oil supply system repair

If there is no oil supply to lubricate the chain, it is necessary to diagnose the entire system and determine the reason why the oil is not supplied. There may be several main reasons:

Clogged oil filter or oil system;
Missing thread on the oil pump worm gear;
Blockage or malfunction of the pump itself;
Depressurization of the oil system (there will be oil leaks on the bottom of the chainsaw).

To check the threads on the worm drive of the oil pump, you will need to remove the chainsaw drive sprocket and unscrew the clutch. To do this, the spark plug is unscrewed and a piston stopper is installed in its place, thereby ensuring reliable fixation of the tool’s crankshaft from turning.

Next, remove the cover from the side of the bar of the Shtil 180 chainsaw, and using a screwdriver, remove the retaining ring holding the drive sprocket, after which the sprocket itself is removed.

The clutch is untwisted using a 19mm socket and a wrench. It is necessary to unscrew the clutch clockwise, since the thread is left-handed. There is a reflective plate behind the clutch, this also needs to be removed. The next part is the worm drive of the oil pump. Having examined and discovered the absence of a plastic thread, you can safely throw out the part and install a new one in its place, since it is impossible to restore it. Assembling the Shtil 180 chainsaw is carried out in the reverse order.

If the gear is in normal condition, disassembling the saw continues; for this, the corkscrews are removed from the shock absorbers, the rear handle is untwisted and the throttle control rod is disconnected, after which the handle block is removed from the shock absorbers using a powerful slotted screwdriver.

It is necessary to remove the handles to provide access to the bottom where the oil pump is installed.

At the next stage, the oil hose coming from the oil tank is removed from its seat on the body and the line is checked for blockages by supplying air through the oil hose into the oil tank body. If a blockage is detected, it must be cleaned; if this is not possible, the faulty hose must be replaced.

Next, the oil pump is removed from the body of the Shtil 180 chainsaw and washed in gasoline.

After repair, we assemble the Stihl 180 chainsaw in the reverse order. An important point is to seal the oil hose at the installation site, into the seat on the housing. It is necessary to rinse the hose and the hole for its installation with gasoline, then blow with compressed air until completely dry and coat it with sealing oil-resistant sealant, and then install it in place.

What kind of damage may occur?

Chainsaw malfunctions can be divided into groups:

Engine malfunctions (ignition, exhaust and cylinder-piston systems, fuel supply).
Failure of components such as the clutch, chain brake, lubrication system or tire.

Chainsaw engine failure is more common than others. Most of the time is spent on its detection and repair. As a rule, it comes down to such manifestations when the engine runs unstably or stalls altogether, the engine does not start, and does not develop power.

Before you start repairing your chainsaw, first check all the possible causes of problems in its functioning, or better yet, watch the video. Fortunately, today you can find any material of interest on the Internet.

Then you will have to prepare the necessary tools to repair the damage:

device diagram (must be included in the delivery kit);
keys, including spark plugs.

Ignition system malfunction

When the engine refuses to work, but there is a spark at the spark plug and fuel is flowing, you should check the ignition.

Checking it is not at all difficult: unscrew the spark plug, adjust the gap between the contacts, connect it to the wire and press it against the cylinder body. After this, watch for a spark to appear.

If any deviations occur, you need to adjust the ignition system. In general, this process is similar to adjusting the ignition in other two-stroke engines.

Checking the ignition system

Chainsaw ignition system

If the tool does not start, then the problem may be hidden in the trigger mechanism or in the ignition system. In this case, if the starting device is working normally, then you need to carefully examine the spark plug. It must be turned out and carefully examined.

Increased attention here needs to be paid to the electrodes, on which plaque may accumulate. If there is a red-brown coating on the electrodes, this indicates severe defects in the entire starting system. So, the cause of the malfunction may lie in the carburetor.

If the ignition system works normally, but the tool does not work correctly, then the problem may be due to an excess of air-fuel mixture. Here it is necessary to adjust the carburetor and clean the jets.

READ Replacing batteries in an aeg screwdriver

Do-it-yourself chainsaw carburetor adjustment

If during the inspection, carbon deposits were found on the spark plug, this means that the tool runs on low-quality gasoline. Also, a prerequisite for this may be improper functioning of the carburetor.

To solve this problem, you must perform the following steps:

Remove the carburetor and check it;
Clean and adjust it as necessary;
Change fuel;
Install the carburetor and check the tool in operation.

It should be noted here that the carburetor is a rather complex unit. Therefore, if there is a need for its repair, it is better to seek help from specialists.

And in this article you can find out how to make a hand-held garden auger.

Having this information, you can repair the Stihl 100 eighty chainsaw at home. Naturally, it is necessary to take into account that more severe faults are best addressed in service centers.

See the review about diagnosing the lubrication system of the Stihl MS180 chainsaw:

Do-it-yourself adjustment of the Shtil 180 chainsaw carburetor

Adjusting the Stihl MS 180 carburetor is necessary to ensure efficient operation of the saw when used at maximum speed, and to save fuel. To perform this procedure, you will need to clean the air and standard fuel filters.

The carburetor of the model can be adjusted using three standard screws. Screws L and H are needed to pre-set the air-fuel mixture ratio, which is regulated by different throttle valve positions. Screw S is responsible for fine-tuning the operation of the chainsaw at idle. The procedure for setting up the carburetor is as follows:

First you need to start the tool and begin to alternately turn the screws H and L clockwise until it stops. Both screws will then need to be slowly turned 2 full turns in the opposite direction;
After this, you need to find the maximum engine speed when the saw is idling. To do this, screw L should be turned alternately in different directions. In this case, the screws should not make creaking sounds. Once the base maximum speed has been found, you will need to slowly turn screw L a quarter turn counterclockwise;

Portal about construction

Tools, equipment and technology Recommendations for selection.
Operation, repair and maintenance. Malfunctions and ways to eliminate them. Is it possible to lubricate the drive sprocket bearing on a Stihl MS 180 chainsaw with Litol-24 grease?

Perhaps not the best option, but it will cope with this task quite well. There are no loads there, and the bearing only works when the crankshaft is spinning and the chain is standing still. So it’s possible.

As the gas supply increases, the chainsaw begins to stall. At idle it works fine. I have already replaced the air filter, gas filter, blown out the breathers, and all the hoses seem to have no cracks. what could be the problem?

Maybe due to a disruption in the supply of the mixture, or maybe due to the supply of air to this mixture. Did you happen to turn the screws “H” and “L” on the carburetor? Perhaps screw L has been twisted, try setting it 1 turn counterclockwise. In general, only the idle speed of the Stihl MS 180 chainsaw is regulated, since the carburetor is rolled and configured at the manufacturer. The idle speed is adjusted so that the chain does not rotate at minimum speed, or according to the tachometer. The fuel pump filter, the fuel hose itself, or the air filter may also be clogged.

There is no power on the Shtil 180 chain saw, how to fix it?

Clean the filter, clean the muffler grille and adjust the carburetor.

Tell me, should there be free play on the piston group of the new calm?

The movement should not be completely free, as there should be compression.

How to properly install a gear stop on a chainsaw?

Screw onto the outside of the chainsaw body.

I bought this tool. How many tanks of fuel should I use during break-in?

There is no need to break in the unit - it is prohibited! We work at full throttle with partial load, approximately at least 3 - 5 refuelings. During first operation: do not operate a brand new factory unit at high speed without load until the third fuel tank refill to avoid any additional loads being applied during the running-in period. During running-in, the moving parts must rub against each other - there is increased friction resistance in the drive mechanism. The engine reaches maximum power after 5 – 15 fuel fills.

The trigger on the Stihl MS 180 chain saw gets stuck. If you cut and pull the trigger in a vertical position, everything is fine, but if you turn the saw 90 degrees. sawing a tree, then when you press the trigger it jams halfway and is not pressed further, if you then return the saw to a vertical position, press the gas halfway, and then turn the saw and cut, then everything is normally gassed to the end, it feels like somewhere - then something is clinging. Help me fix it?

There is a malfunction in the gas supply unit.

I mistakenly diluted gasoline with oil in a ratio of 1 ml. 250 ml of oil. gasoline. The saw worked on this mixture for about 20 minutes with breaks, this was the first start of the saw, then the normal mixture was poured. The saw then starts normally when hot the first time. Could something have gone wrong or appeared, for example, scuffing on the piston?

If the chainsaw is working normally, nothing may have happened. The consequences of working with a lack of oil can only be shown by an autopsy.

How to properly start the Shtil 180 chainsaw for the first time?

In total, the control lever on the saw (the black lever on the side of the gas trigger on the saw) has 4 positions. Let's start from top to bottom: a) “0” STOP - stop (turn off) the chainsaw! b) “I” - Working position (idling position) - the lever is in this position during operation (sawing). c) Warm start position. d) Cold start position. When the saw is cold, set the lever to position “G” (in this position the lever can only be set when the gas trigger is pressed), sharply pull the starting cable until the saw starts and stalls. We move the lever to position “B” - sharply pull the starting cable until the chainsaw starts. The saw has started and is running at full speed - keep it in this state for a maximum of 10 seconds. (the moment the saw warms up) and move the lever to position “B” (transfer to position “B” can only be done by pressing the gas trigger. The lever will “jump” to this position, as it were, there is no need to pull it with your finger trying to move it to this position. For To stop the saw, move the lever to position “A”.

One and a half years of operation of the Stihl MS180 chainsaw have passed. Some problems have appeared: Unstable starting - when starting up, the saw sometimes stalls itself at idle, sometimes it stalls when you press the gas - it seems to choke. When working in the sideways position (starter up), some suspicious gurgling sounds are heard, very similar to those heard when the starter cord is slowly pulled out from the intake air. There are also problems with the clutch - at the slightest wedge, the chain stops, but the saw does not stall. I started taking it apart and decided to clean everything better. I started with the clutch - the drive sprocket was covered in oil inside and out, you could see the annular strip along which the clutch rolled - smooth as a mirror, I washed it with acetone without fanaticism (so as not to leak anywhere). Next, I started checking the piston - I removed the muffler and unscrewed the spark plug, and found small scuffs all over the circle. I will describe them in more detail - not deep, mirror-like narrow stripes, along the entire perimeter of the cylinder, in depth - deeper than the honing (it is clearly visible) on the piston there are similar scuff marks, naturally I can only talk about the condition of the surface opposite the exhaust. The piston is normal - the bottom is covered in uniform black soot, in one place it has fallen off the edge - the shiny metal of the piston is visible. There is compression, the rings have not gone away - when the cord is pulled out, periodic resistance is quite noticeable, I have not started measuring it yet. I began to think about the reason - and remembered that that year I was uprooting lilacs and, without knowing it, I cut down a rather thick trunk, inside of which there was earth (it rotted, and then ants settled there) - apparently dust was pulled under the filter. I unscrewed the air filter and found quite a lot of fine wood dust in the internal channel (up to the damper). 1. How to properly adjust the idle speed yourself? 2. Does it make sense to wash the clutch or just change it? (But there is always oil from the chain there). 3. How scary are such bullies? As I understand it, any working chainsaw will have them - the question is depth and quantity? Or am I wrong? 4. How do sawdust and soil get under the filter? The filter itself is the second in a row, with a uniform pressed mark around the perimeter from the top cover; before removing the filter, I always carefully plugged the inlet hole with a piece of clean cloth - nothing could spill out.

1. The manual describes everything in detail. And then this will be the idle speed adjustment and, in this model, the carburetors are not adjustable in our Russian understanding of the word. But the filters need to be changed, both air and fuel. 2. No - it doesn’t, if the wear on the drive sprocket is not great, but the bearing can be replaced, although it is strong enough, it just needs to be anointed. 3. these are not scuffs, but small scratches a couple of microns deep, nothing terrible, a completely natural phenomenon, especially since according to your statements the compression is normal. 4. Even on larger chainsaws, where there is an adjacent silicone strip and a fairly powerful clamping device, fine dust still gets under the filter, otherwise the filter would become clogged within 4-6 hours of operation.

When starting the chain saw, the MS 180 operates at high speeds. The reason is not the carburetor. Gas is not released. What is the cause of the problem?

There may be a lack of tightness; air is leaking through the seals.

For left-handed cutting links, the rear bevel is “eaten up” very quickly. What is the reason? The right-hand ones are about twice as slow. As a result, the chain breaks. Chainsaw Shtil 180, the chain is calm, it is new and regularly sharpened, the lubrication is supplied properly, the chain tension is free to move by hand, but does not sag, the tire is new, the drive sprocket is new. The approximate sawing volume is 8 m3 with logs. This problem is constant

Removing and disassembling the engine

The engine is held in place by 4 screws installed on the bottom of the Shtil 180 chainsaw. To remove it, you need to unscrew them, and then carefully remove the engine from the seat and the rubber carburetor pipe.

To disassemble the engine, 4 crankcase screws are unscrewed and it is removed, then you can remove the crankshaft assembly 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 press out the piston pin from the opposite side, after which the piston is removed to the side.

Malfunctions of the chain lubrication system

Each instruction manual indicates the need to monitor the condition of the chain lubrication system.

Typically, system malfunctions occur due to clogged channels through which lubricant is supplied. If there is a slight oil leak, you can continue operation. But if the oil leaks are large enough, then you need to check the tightness of the connections of the tubes to the pump fittings. The leak can be eliminated using sealant or replacing the tubes.

You should also pay attention to the condition of the oil pump. If there are cracks in its body, replacement is necessary.

The oil pump repair video is shown below:

How to properly disassemble a Shtil chainsaw

Before directly disassembling the Stihl saw, a preparatory stage must follow. Prepare a comfortable table, dry rags, brushes for delicate wiping of parts, clean water, gloves and a dry place away from fire

It is also important to understand that there should be no fuel in the unit. It would be optimal to work it out rather than drain it and let the saw cool for several hours before disassembling it.

The procedure is simple and clear:

remove the chain, tire and side cover; using a compressor, if available, brushes, a dry sponge - clean Shtil from oil, dirt, dust, smudges, sawdust

Pay special attention to the drive sprocket - it may contain a lot of soot and dirt; if large accumulations of dirt are difficult to remove mechanically, then pure gasoline can be used; We look for three rubber shock absorbers and remove the handle. This can be done by removing the stubs

Using a strong screwdriver, first squeeze out the upper shock absorber, and then the one located at the rear handle; disassemble the back of the handle by unscrewing two screws. So we disconnect the rod from the gas trigger (it connects the carburetor and the gas trigger, which is in the handle); at the moment of fixing the handle only on the shock absorber - it’s as if we are turning out all the “insides” of the saw and twisting it to the side - we remove it from the last clamp like an elastic band; the starter is removed by dismantling the top housing cover and unscrewing the 4 screws on which it is attached. Next, remove the tank caps - fuel and oil. Under the starter there is often an accumulation of dirt and sawdust, which also needs to be cleaned; a 13mm head will help unscrew the flywheel. We block the crankshaft from turning by unscrewing the spark plug, namely through its hole we fix the piston stopper; if the piston is blocked, you can unscrew the flywheel nut; Before removing the clutch, disconnect the drive sprocket. The lock washer is removed from the grooves, as well as the needle bearing; disassembling the Shtil 180 chainsaw involves removing the clutch with a size 19 head. Next, remove the reflective plate and the oil pump drive; We disconnect the ignition wires and the air damper rod from the part called the engine lever, and remove the lever itself. Next, unscrew the nuts of the carb and air filter using a convenient 8-mm socket with an extension (if one is available); by unscrewing 2 nuts and pulling slightly towards yourself, you will remove the next part, the muffler; There are 4 screws in the bottom of the saw that hold the motor. When carefully removing it, do not forget about the rubber carburetor pipe, which can be touched.

Disassembling the engine of the unit is a separate diagram, but in general, we have looked at how to disassemble a Shtil chainsaw. Regarding other popular models, such as 250, the procedure should be carried out similarly. Like other parts, you can always order a file for sharpening chains at KosiKosa.

Repair of STIHL MS 180 chainsaw. No oil supply.

the main reasons why stihl oil does not

180.

Chainsaw fuel system: 1 – fuel filter, 4.5 – carburetor, 3 – manual preparatory pump.

If the carburetor is adjusted correctly, fuel will be consumed in the permissible amount. Otherwise, it will end very quickly.

Slow reduction of fuel during operation

sawing is a common process. If it is missing, the chain is not lubricated correctly, so working with the chainsaw will be smooth. It is necessary not only to be able to eliminate breakdowns, but also to identify them without the help of others.

Troubleshooting

If oil is supplied to the chain in excessive quantities, not only while the saw is running, but also at idle, manual adjustment should be made (if the pump design allows this possibility). This is done using a screw, which is located on the body near the guide bar, usually on the bottom or side. Tightening the screw reduces the oil supply, loosening it does the opposite. If the adjustment does not help, it is necessary to check the serviceability of the pump, and also inspect the tire - perhaps a gap has formed at the point where it connects to the body, through which oil flows past the chain.

Read also: Light bulbs in a circle in a suspended ceiling

Lack of oil can be caused by several reasons, each of which has its own solution:

Oil pump malfunction. As a rule, it consists of an unsuitable gasket. In order to replace it, it is necessary to carefully disassemble the pump so as not to damage its moving parts. Next, a new gasket is installed, after which the pump is assembled and installed in place.
Broken oil supply hose. If the pump gasket is in good condition, or if replacing it did not lead to results, you should check the tightness of the hose. If it is faulty, it needs to be replaced. Otherwise, it would be a good idea to clean it and seal it with sealant.

If the reason does not lie in a breakdown of the pump, it is necessary to inspect all conductive holes and channels for blockages, and, if necessary, clean them of foreign objects. This can be done with a jet of compressed air.

Don't want to tinker with a chainsaw but need to adjust the oil flow? Contact our specialists for help, who will diagnose and repair the chainsaw, and, if necessary, carry out repair work and adjust the lubrication level. Your saw will be like new!

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Replacing the fuel hose on a 3816 chainsaw

How to replace a fuel hose on a chainsaw

and what to do if oil leaks from a chainsaw? In this video we arrange.

Insufficient supply of the fuel mixture from the carburetor to the cylinder or a violation of the correct ratio between fuel and air mixed in the carburetor can occur for several reasons: due to a clogged air filter, unadjusted carburetor, clogged channels or filter mesh.

As a rule, repairing chainsaws is not complete without cleaning the air filter, since it gets dirty quite quickly. When this happens, the flow of air into the carburetor is reduced, and the fuel mixture leaving it becomes too rich, which disrupts the normal operation of the engine. replacing the fuel hose on a husqvarna 136 chainsaw - duration: does not start when cold. You need to carefully remove a dirty filter for cleaning so that dirt does not get into the carburetor. The filter should be cleaned or washed in water with some detergent, dried and installed back.

Carburetor misalignment can be corrected by adjusting it. Replacing the fuel hose on a Husqvarna chainsaw. This is usually done using three screws - maximum and minimum speed and the idle screw. Adjustment must be carried out in strict accordance with the instructions, failure to comply with which may lead to engine damage. Some saw manufacturers leave only one adjusting screw (idle speed) to prevent unwanted interference by inexperienced users with the operation of the carburetor. For an example of adjusting a chainsaw carburetor, see the article Working with a chainsaw.

If adjusting the carburetor does not help, you need to clean its channels and filter mesh, and at the same time check the integrity of the membrane. The carburetor is one of the most complex devices in a chainsaw, so you need to start disassembling and cleaning it with a full understanding of the responsibility of this operation. replacing the drive sprocket on a chainsaw; replacing the sprocket on a Chinese chainsaw. It consists of many small parts that have the ability to unnoticeably jump out of their places and get lost irretrievably, so that after disassembling this capricious device, you may not be able to reassemble it.

Below is a diagram of another chainsaw carburetor.

If you do not have experience and self-confidence, it is better to entrust the repair of a chainsaw carburetor to a service center specialist. Sometimes, to properly clean the carburetor, it is necessary to use ultrasonic cleaning.

Muffler

. Replacing replacing a fuel hose with replacing a fuel hose on a chainsaw. Often the cause of engine malfunction, especially when the engine runs normally at low speeds and stalls under load, is clogging of the muffler spark arrester with combustion products, which prevents normal exhaust. Repair in this case consists of removing the muffler, disassembling it (if it is dismountable) and wet cleaning it from carbon deposits using detergents. The non-removable muffler is dried with a hairdryer after washing. Remember that carbon deposits contain substances that are carcinogens, and dry cleaning, which could result in their inhalation, is unacceptable. When removing the muffler, plug the engine exhaust hole with a clean rag.

Chainsaw malfunctions and repairs

A chainsaw is not such a complicated device. But if a malfunction is detected, you need to have at least basic knowledge in order to find and remove the defect that has appeared.

Let's look at the main malfunctions of chainsaws, find out what they are connected with, and also look at the main steps to correct the breakdowns.

Repairing the Oil Pump of Chainsaw Shtil 180

The STIHL MS 180 chainsaw is an indispensable tool designed for harvesting wood and other wood construction work. It is one of the most recognized gardening devices that is armed with functional capabilities.

The weight of the tool is about 4 kg. The power reaches 1.5 kW, and the bus length is 35 cm.

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Note that this saw model received electric ignition and a fairly fast chain tension from the semi-professional device. Additionally, the STIHL MS 180 saw has 4 tanks designed for gasoline and also for oil consistency.

One of the main features is reduced vibration.

This result is achieved thanks to 4 shock absorbers. It is no secret that high depreciation has a harmful effect on human health, and Europe has been fighting it for a long time.

It must be emphasized that it is not better to disassemble this saw without the help of others without special instructions; in solving this issue, it is better to entrust the device to specialists.

Owners of this tool model must be prepared to face such a nasty situation as a leak of oil to lubricate the chain. Oil can leak out while working with equipment and when simply lying idle.

What is the reason for this phenomenon? There is a possibility that oil leaks due to density problems in the area where the hose from the oil tank and the pump connects.

To be able to solve the STIHL MS 180 problem related to the oil supply, purposefully disassemble the device.

Solution to the problem:

Check the hose; if it is damaged, replace it with another one. Or try to degrease the hose and wash it, and put it on sealant, our client should still earn money.
Check the filter oil for damage, clean it (if you filled in waste oil)
Also, perhaps the reason is a clogged priming, at the same time a vacuum appears in the fuel tank and affects the fuel supply. The problem is that the carburetor is adjusted better, and sometimes the channels are clogged, and in other words, the air filter, you need to carefully clean the filter and carburetor channels.

Product reserve

The Stihl MS 180 C-BE 16 40 cm chainsaw is an improved version of the Stihl MS 180 chainsaw - it has an ErgoStart ease-of-start system and lateral chain tension without the use of tools. The tool is suitable for collecting firewood, forming tree crowns, knots, erecting wooden structures, sawing tree trunks, as well as performing other simple household work. The Shtil chainsaw has high cutting capabilities, wide functionality and low weight. A high level of ergonomics ensures ease of use regardless of the complexity of the task. The device is equipped with a 16-inch tire (40 cm), providing the ability to work with trees with a diameter of up to 35 cm.

The STIHL MS 180 C-BE petrol saw has a modern vibration protection system. The anti-vibration system is located in the area of the saw handles and significantly dampens the vibration transmitted from the engine. The tool is equipped with a modern lubrication system that regulates the amount of lubricant supplied. The control button for cold and hot start, turning the tool on and off is represented by a separate lever. This makes handling the saw safe, since the operator's hand always remains on the handle.

Features and benefits of Stihl MS 180 C-BE 16 40 cm

ErgoStart starting aid
Side pressing of the chain without using a tool
Light weight
Convenience
QuickStop chain brake
Safety
Quick chain tension
Modern vibration protection system
Modern lubrication system

Equipment

The QuickStop chain brake is a safety mechanism when working with chainsaws. The chain brake is activated by pressing the front palm rest and stops the saw chain in a matter of seconds. If the kickback is strong enough, the QuickStop chain brake engages automatically.

Strong vibration in the area of the handles can lead to chronic circulatory problems in the hands. That's why STIHL has developed a highly effective anti-vibration system (AS). For tools with AC, engine vibration transmitted to the handles is noticeably reduced.

The STIHL compensator - a regulating element in the carburetor - ensures almost constant engine power, exhaust quality and fuel consumption over a long period of time despite increasing contamination of the air filter. It is necessary to clean the air filter only when there is a noticeable drop in power. Long-term maintenance-free operation becomes possible.

The STIHL Ematic system consists of an Ematic guide bar, an Oilomatic saw chain and a variable-flow oil pump. The special design of the bar and chain ensures that every drop of oil reaches exactly where it is needed for lubrication. This allows you to reduce oil consumption by 50%.

The coil spring between the starter cable spool and the crankshaft compensates for peak forces, and now there is almost no shock felt on the cable. The result: STIHL ErgoStart reduces the force by half and the starting speed by approximately two-thirds compared to traditional jump starters.

Machine functions such as cold and hot start, operation and shutdown are controlled by a separate lever. This makes control especially convenient and safe, since the right palm remains on the handle.

The proprietary STIHL quick chain tensioning system (B) makes tensioning the saw chain child's play. You just need to loosen the nut securing the chain sprocket cover, and use the adjusting wheel to quickly and easily tighten the chain. No tool required for this.

If you find an error or inaccuracy in the text or product description, highlight it and press Shift+Enter.

Chainsaw carburetor malfunctions and repairs

All carburetors are cleaned the same way, the main thing is not to be afraid and not to lose anything. For repairs you will need to prepare:

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any brush;
Phillips screwdriver;
head for 8;
some gasoline.

First of all, using a brush, dirt and dust are cleaned. Then remove the lid and filter. The two air filter nuts are unscrewed and the air collector housing is removed. Now you can see the carburetor and the choke and accelerator rods. By lowering the throttle down with your finger, you will need to remove the accelerator lever.

To move the carburetor from its seat, you must first remove the choke lever and close it completely. Now you need to remove and pull the engine stop wire towards you. It is also necessary to remove the plastic lever on 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 freed and can be pulled out and cleaned. This is best done with a compressor, but if you don’t have one, the parts can be washed in clean gasoline.

Don’t forget about the fuel filter, which also needs to be removed and the fuel hose blown out. Everything is put together 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 located 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, to fix this problem, you should find the spring and put it in place.

When repairing a carburetor, you should remember that it is a rather complex unit, which consists of various small rings and parts

Therefore, it is necessary to clean and repair it with special care and caution.

If the chainsaw does not start or stalls, then in addition to the carburetor itself, you should check the functionality of the spark plug. If it is faulty, 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 done for at least thirty minutes, after which the candle is put in place and the tool is started.

The cause of the malfunction may be poor 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 Shtil 180 chainsaw, such as anti-vibration elements, chain, tire, and drive sprocket, wear out faster than others. Therefore, to quickly replace them, it is recommended to keep spare parts in the workshop.

Eliminating the causes of chainsaw malfunctions with your own hands will in any case cost less than repairing the tool in a service workshop. In order not to rack your brains over why the tool stopped working, you can watch video instructions for troubleshooting various breakdowns of the Shtil 180 chainsaw. However, in case of serious damage, it is better not to do the repairs yourself and entrust the work to a specialist.

Operating principle of the oil supply pump

Before removing the chainsaw pump, it is important to understand on what principle it functions. The force generated on the drive is transferred to the plunger through a worm-type transmission (the force transmits rotational motion). The latter begins to spin, repeating a reciprocating motion.

This type of movement is guaranteed due to the specific shape of the plunger, the adjusting screw, its thrust spring and the eccentric. When the plunger begins to move back, oil enters the reservoir through a small hole (we also see this principle in a regular syringe).

The forward movement forces the oil out through the same hole. It is easy to guess that according to this principle, the unit works only due to the tightness created by the rubber cuff. May not be indicated on the working diagram.

In addition, according to this principle, the pump only works if two holes are not open at the same moment. To prevent this from happening, the developers provided a segmented cutout at the tip of one plunger. While moving backwards, it turns towards the inlet. This hole closes when forward movement occurs. At the same time, the outlet hole is open, because the cutout is turned towards the last hole. One rotation of the plunger occurs with one reciprocating movement.

At the same time, manufacturers of saw main units can change the stroke of the plunger, which requires an eccentric and an adjusting screw. The first is visually just a cylinder integrated into the adjustment screw housing. The main axis of this part will not coincide with the axis of the adjustment screw even when the screw rotates.

The cylinder will move closer and further away in relation to the ribs of the plunger. This is necessary to know in order to understand the essence of the work and functions of the eccentric. This type of displacement of this part is the reason why it came to be called a “cam”.

If the plunger gets as close to the cam as possible, the oil will not be able to be pumped. Otherwise, the plunger will move the oil to maximum (pump at full power).

Also be sure to look at the article about how the chainsaw chain lubrication system works. Information is also related to oil and its supply to working parts.

How does the plunger move?

Its movement is possible due to special processing of the end, which rests with a protrusion in the center against the eccentric. The edge of this end resembles a regular ring, surrounded by a protrusion located in the center. This ring is located at an angle, and not perpendicular to the axis of the plunger. Having formed a bevel, this part allows the plunger to protrude slightly.

In this case, the edge of the plunger and the adjustment screw are connected specifically. This makes it possible for the end to touch the screw during movement with different parts, protruding and not protruding. When the end touches the screw with the protruding part, the plunger rotates forward. And when the end touches the adjustment screw with the non-protruding part, a backward movement occurs. Reverse movement is possible thanks to a persistent spring.

Identifying Oil Pump Problems

If the operator knows how the booster pump works, he will be able to figure out how to remove the chainsaw pump. A minimum of plumbing skills and a minimum of tools are enough to do this and then repair the unit.

Please note that identifying the problem of the oil supply pump will allow you to understand what kind of component dismantling needs to be done, complete or partial. If you are afraid that you will not be able to cope with complete dismantling, contact a service workshop, where specialists will use their technical potential for this purpose. Of course, many parts that you can damage when dismantling a component can be replaced, but this replacement will cost you a pretty penny.

Please note that when the oil reservoir is full, but no oil is supplied to the saw set, the cause of this failure may not always relate to the oil pump. Sometimes, during the process of disassembling the saw, you will be able to detect a malfunction of other elements not related to this unit. Most often, replacing them solves the main problem.

In addition, before blaming the oil pump for all your troubles, check the oil filter, which, if heavily soiled, not only impairs the operation of the oil pump, but can also completely damage it. In order to check the oil filter, it is enough to hold a piece of paper over it, on which an oil streak will remain. The density of the latter will allow you to assess the condition of the filter and develop a plan for further action.

Important! Sometimes, after repairing the lubrication system, consumables do not flow to the saw set, then you need to look for the cause of the malfunction of the mechanism in the standard adjustments. This problem can also arise due to a mismatch between the viscosity index and the density index. On the other hand, the appearance of this problem through negligence or inattention can be caused by the operator installing an unsuitable guide on the power unit, for example, on an ordinary household guide or a guide from a professional powerful tool.

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Pump structure, lubrication system and principle of operation

The oil pump drive consists of two parts: a plastic gear with a worm gear and a wire lever that transmits force from the drum sprocket to the worm gear.

One of the main defects of the saw’s oil system is a defective thread on the plastic gear of the oil drive, therefore, no matter how hard it is, you need to keep its wear and the quality of the thread under control.

The lever is aggressively mounted to the gear and they are supplied as one piece. The tip of the wire arm has a corresponding bend, which is designed for the best grip on the sprocket drive drum. Repair of a stihl ms230 chainsaw, replacement with a Chinese one, replacement of an oil pump with. The drum has a special slot for installing the drive.

The Shtil 180 oil pump is one hundred percent made of metal and has a non-collapsible design. Replacing the starter cord disassembling the Stihl 180 chainsaw part 1 stihl ms260c recoil starter repair 2/2 how. On the pump body there is a receiving hole for oil and a groove-channel through which oil from the oil wire gets directly into the pump. The mechanism is installed in the body of the Stihl 180 chainsaw.

Conclusion

The oil pump of the Shtil 180 chainsaw is a reliable and unpretentious part, which quite rarely causes a lack of chain lubrication. It is necessary to disassemble and replace the pump only as a last resort, when you are sure that the reason is 100% in it. You can do this yourself, as this operation is quite simple.

Finally, I got around to writing the ending about the repair of the Shtil 180 saw. Everything basic has already been written in Repair of the STIHL 180 chainsaw + photo report (Part 1) Now I’m adding a few points on assembly.

The main thing is not to rush, double-check that you are assembling everything correctly. Watch YouTube on this topic. It's better to see once... Since the repair, the saw has been working normally. If you have any questions write...

Lubrication system malfunctions and how to fix them

The main malfunctions of the oil supply system on a chainsaw can be divided into two main types: these are general malfunctions inherent in all chainsaws and individual ones, which may vary depending on the type of pump and worm gear installed on a particular model. Let's begin to understand the faults in order.

Signs of a malfunction of the lubrication system, checking its performance

The chainsaw chain is dry and has a pale tint without shine.
The chain stretches relatively quickly.
The tire is very hot and may even partially melt the paint.
The oil from the tank is practically not reduced.
Reduced cutting efficiency on a sharp chain

All these signs indicate that the lubrication process is not proceeding properly. In order to check the oil supply to the lubrication system, you need to remove the side tire of the chainsaw and start it. Next, you need to slightly increase the speed while observing the end of the oil line. If oil comes in, most likely the amount is not enough for normal lubrication and you need to clean or replace the filter and, if possible, adjust the flow. If it does not, the problem is more serious and requires further diagnosis.

There is a way to check the oil supply without removing the tires. To do this, you need to point the end of the bar towards, for example, a freshly cut piece of wood from the side of the cut and increase the speed as much as possible, while trying to keep the end of the bar at a distance of no more than 10 cm from the block. If oil spots begin to appear on its surface, it means the oil is being supplied.

Troubleshooting

Once it has been determined that oil is not being supplied, further diagnosis is only possible if the oil system is completely removed. Of course, in some situations replacing the filter helps, but this is very rare.

Most common faults

Broken oil hose. It can sometimes be detected by visual inspection. The problem is solved by replacing the faulty part.
There is no thread on the oil pump shaft; replacing it will help.
A defective thread on the pump drive gear can be similarly solved by installing a new part.
Lack of main shaft corkscrew (relevant for some instrument models, for example, Homelite). You can fix it by installing a nail of a suitable diameter instead of the original corkscrew, cutting it to the required length.
Blockage in the line. Can be removed by blowing with compressed air or mechanically, using a wire of a suitable diameter.
Filter element clogged.
The Stihl MS 180 tool, whose pump is not dismountable, often gets clogged. You can try to wash it in clean gasoline, if that doesn’t help, replace it.
In Chinese chainsaws (Gypsy), it very often cuts off the grooves on the main gear, through which the force from the sprocket is transmitted to it.

Individual malfunction of the Stihl MS 180 lubrication system

Due to the fact that the Stihl MS 180 is one of the most common models of chainsaws, I would like to dwell in more detail on one fault inherent only to it and describe a method for eliminating it without replacing parts.

Quite often, on the Shtil MS 180 chainsaw, depressurization of the oil line is observed in the place where the oil line coming from the tank is installed in the saw body. The malfunction can be determined by the characteristic lubricant leaks on the bottom of the tool.

To eliminate the problem, you need to remove the chainsaw handle, remove the hose from the mounting hole, clean and degrease. After all these manipulations, apply sealant to the hose seat and install it into the chainsaw body.

You can learn more about troubleshooting and complete diagnostics of the lubrication system of the Stihl chainsaw by watching a video that shows the step-by-step process of disassembling and repairing the lubrication system.

Chainsaw starter device

The principle of operation of a starter for a chainsaw is as follows. A handle is installed in a groove in the housing, through which a cable is passed. If the handle is sharply raised, the cable is pulled out and engages the drum of the ratcheting mechanism, which transmits the movement to the drum with splines provided on the shaft. In this case, the crankshaft makes several revolutions, and the working mixture in the space between the piston and the cylinder head is compressed. Accordingly, when the handle is lowered, contact between the ratchet and the splines is lost and the shaft stops.

As engine volume increases, the required amount of fuel-air mixture required for its subsequent ignition also increases, so the number of pulls on the starting cable for high-power saws increases. Therefore, in order to speed up the return of the drum, involuntary return springs made of steel with high elastic properties are used.

Making it easier to start a chainsaw is done in the following ways:

How to install a spring on a chainsaw starter?

Fitting the starter spring into the correct groove is not an easy task even for an experienced user. First, the spring should be twisted to its previous diameter and installed in the cavity of the drum hub. The outer end of the spring is fixed by the limiting protrusion, and the outer end should be positioned opposite the hole in the lock using a screwdriver. Using a screwdriver, align the loop at the inner end of the spring with the hole, after which the disk is lowered. By rotating the disk, check whether the ratchet pawl is in place. Next, the ratchet itself is assembled.

After installing the spring, it is necessary to adjust its tension. To do this, a cable is inserted into a groove on the circumference, and a return spring is twisted around it. After removing the slack, it is better to wind the spring an additional few turns to ensure the required tension on the part.

How to set the ignition

You need to turn on the ignition on the chainsaw. Ignition adjustment is carried out as follows:

unscrew the spark plug and evaluate its appearance;
specify the distance between the magnets and the coil (up to 0.2 mm);
check the spark.

Pouring a candle

If you notice that the spark plug on your STIHL chainsaw is flooding, then there may be a malfunction in the fuel system. The engine must run on a mixture of gasoline and oil. If the mixture is lean, then the power decreases, the cylinder overheats and the saw systems wear out. A wet spark plug on a STIHL chainsaw occurs due to an imbalance in the fuel mixture. Lack of air in the mixture prevents the emulsion from burning properly.

Using low-quality gasoline can cause engine wear.

Oiling of the spark plug also causes the use of oil for 4-stroke engines and wear of the pistons. If such a malfunction occurs, you need to remove the gas tank cap and adjust the fuel supply. The air intake should be in good condition. A clogged filter must be blown out with air, or better yet, replaced. How to clean the filters is described in the operating instructions for the chainsaw.

The quality of the mixture can be determined using a spark plug insulator. If a brown color appears on it, this means that the quality of the mixture is normal. White color or soot indicates a poor or over-enriched mixture.

The cause of oiling is the candle. Interruptions in spark formation are observed when the gap is set incorrectly. The repair and operating instructions for the device give the distance between the spark plug contacts. If you do not have such data, then you can set 0.7-1 mm.

If the gap is smaller, then the efficiency of ignition of the mixture decreases; if it is larger, then interruptions in spark formation occur. To eliminate over-enrichment of the mixture, the engine is purged. In this case, you need to remove the spark plug and turn the crankshaft several times with a manual starter.

Replacing the piston

Let's look at how to diagnose and replace the piston group. It is necessary to check the condition of the cylinder and the degree of wear of the piston. After dismantling the engine, unscrew the pan and remove the crankshaft and piston from the cylinder. Unscrew the piston pin stoppers. If the piston is faulty, it must be replaced. The retaining rings are fixed with the cut down. Before installing the piston group into the cylinder, lubricate the piston with oil. Before installing the crankcase, degrease its surface and apply sealant.

Divinol

This brand offers high quality chain lube that has good adhesive and lubrication properties, so that the lubrication is done efficiently and the hinges and chain loops are reliably protected from wear. The optimal combination of viscosity and temperature characteristics guarantees that this oil can be used at any time of the year and at any temperature.

Divinol offers various oils for chainsaws

What's the use of them? Zweitaktoel FF pays attention to economical consumption, connection to any fuel, prevention of aging of the fuel mixture and excellent corrosion protection. In addition, this oil can be used at any temperature.

Divinol Kettenol and Divinol Kettenol Bio can be used to lubricate chainsaws and chainsaws. With these connections, chain links and joints can be reliably protected from wear, while ensuring economical oil consumption. High-quality organic oils of this brand provide excellent lubricating and adhesive properties, so their use is not only simple, but also environmentally safe.

Semi-synthetic oil of the Stihl brand

Very often, owners of such chainsaws wonder what kind of oil can be used for the saw. Its operation may be affected by:

cutting set;
climate;
wood species

To solve this problem, the Shtil company developed a universal semi-synthetic oil. It is suitable for all high-speed chainsaws. Under any conditions, chains can be lubricated with this oil. The tool will work flawlessly.

Since Shtil semi-synthetics are intended for chains, they are made from special high-quality materials and do not contain various toxic substances that can cause cancer. The oil fully meets the most stringent environmental requirements.

The Russian climate is quite harsh. There are areas in our country where frosts often exceed -20°C. The latest Stihl chainsaw chain oil has been specially developed for use in cold conditions. In such frost it demonstrates excellent fluidity.

Special additives included in the oil prevent the cutting set from becoming oily; they will extend the life of other lubricated parts. A saw with this oil starts easily even after long-term storage.

The use of such chain lube reduces wear on the saw chain. Due to the high endurance of the oil at high temperatures, the cutting set is ideally protected. This oil is not afraid of peak temperature loads. Smoke almost never appears.

Of course, anyone who owns a chainsaw knows how important good quality oil is. And, everyone dreams, there is no need to say what it really is, that this is the typical “life force” of a given device for producing real and effective work. Today there is an unlimited number of oils and, as the saying goes, the choice is very large.

But, often, not every owner of electrical equipment of this kind knows what kind of oil to use for his steel friend, so that the operation of the chainsaw is not only easy, but also productive. Therefore, below we will discuss the issue regarding the correct choice of the manufacturer of the calm. Also, what it is to help the chainsaw in its time of its specific activity, and not harm. Let's get started with what we need.

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Replacing the sprocket

The most common cause of a malfunction in this element is jamming of the chain due to its misalignment or significant wear of the chainsaw sprocket itself.

If any signs of these deviations appear, it is necessary to carefully inspect the plane and teeth of the drive transmission element, paying attention to the depth of drift (it should not exceed 0.5 mm)

If severe wear or traces of deformation are detected on the sprocket body, it can sometimes be repaired, but if the malfunction is serious, a complete replacement is required. Regardless of the nature of the damage found, before repairs you will first need to remove the sprocket from the chainsaw, that is, completely free it from all retaining fasteners.

Most chainsaws have a similar clutch layout. For disassembly, you should use a spark plug wrench, which usually comes with the chainsaw, a clutch remover and a piston stopper.

First, unscrew and remove the tire and remove the chain. Remove the top cover to gain access to the spark plug, unscrew it and install the piston stopper. Often a rope or cord is used as a stopper, but experts do not advise doing this. It is better to use a special stopper when removing the clutch. Remove the side cover, unscrew the clutch (clockwise!) and get to the sprocket.

In another option, the starter is unscrewed and the protection is removed in order to hold the unit that is spinning on the reverse side. The procedure for completely dismantling the main parts of the chainsaw is well presented in the video

All removed parts must be put in one place so that they do not get lost. You can take photos of the chainsaw components so that later after repair you can quickly assemble the tool in the reverse order.