How to regulate the oil supply to the chainsaw chain

Why saving on oil is dangerous?

Why is saving on chain oil dangerous for a chainsaw? If we approach the issue globally, then the wear of the chain, tire, rapid overheating of the chainsaw during operation and, ultimately, even engine breakdown. The cost of broken parts is always much higher than the cost of good oil, so try to constantly fill in high-quality fluids of well-known brands into your chainsaw.

regulate, supply, chainsaw, chain

TOP-5 popular oils for chainsaw chain lubrication

Chainsaw chain oil brands rating. five leading global brands:

  • ├ľkoplus XS 68 is biodegradable, for saw chains, made from vegetable oil. Complies with German biodegradability, forestry and forestry machinery regulations.
  • Liqui Moly Suge-Ketten Oil 100 is a high quality mineral chain oil that has excellent adhesion properties and can be used at both high and low temperatures.
  • STIHL BioPlus. for high speed chains. Suitable for high power chainsaws operating in harsh conditions.
  • Vegeil Husqvarna. plant-based, extremely sustainable and biodegradable.
  • Oregon. all chain oils of the latest generation are made on the basis of high molecular weight compounds, keep the chain and bar from wear, protect against corrosion.

Other well-known brands producing chain oils for chainsaws and electric saws: Motul, Ravenol, Dnipro, Skif-Ol, Mobil.

Major problems with oil supply

When running a chainsaw, there are two types of chain lubrication problems:

  • Insufficient oil flow, which can be caused for various reasons. If measures are not taken in time, the quality of work will noticeably deteriorate, and the chain itself may become unusable altogether.
  • Excessive amount of oil. In this case, after prolonged operation, puddles of lubricant may accumulate under the saw. This not only affects the consumption of oil, which will have to be constantly added, but also negatively affects the environment.

Both of these problems need to be addressed as soon as possible after they are discovered. This will extend saw life and reduce lubricant consumption.

What oils are not suitable for chain lubrication

The use of these types of oils is badly reflected on the quality of the chainsaw and the condition of the chain and tire:

  • counterfeits of unknown origin (the composition of such oils cannot be analyzed and confirmed);
  • mining that has not passed filtration and sedimentation (mechanical particles that are contained in mining will quickly lead to wear of the chain and tire), modern environmental standards prescribe that mining should not be used, it should be disposed of in accordance with the rules;
  • transmission (not a very suitable option due to viscosity mismatch).

Principle of chain and bar lubrication

The main body of the fuel system of the chainsaw is the oil pump. When the engine speed starts to rise, the worm gear gives impulse to the pump shaft and it starts moving. The shaft rotates creating pressure inside the oil line. Thus, under pressure, the oil moves along the line to the tire.

The oil duct ends where the saw crankcase contacts the tire. There is a longitudinal groove in this area. When a tire is installed on the chainsaw, the oil channel matches this groove. The groove regulates the flow of oil to the tire of the chainsaw, moreover, its amount has nothing to do with the degree of chain tension.

After oil gets on the tire, the chain is activated. it usually has holes from which oil gets on the entire plane of the tire. The higher the number of revolutions of the chainsaw engine, the more oil will go to the chain. Some models of chainsaws have special oil regulating pumps, with which you can adjust the amount of oil entering the chain. This is how the degree of consumption of lubricants is adjusted.

How to use chainsaw oil?

A special pump is provided to supply lubricant to the chain in a chain saw or electric saw. With this pump, oil should be supplied directly to the tire, distributed along the chain, contributing to the high-quality operation of the tool. The degree of oil consumption directly depends on the number of engine revolutions. the higher it is, the more consumption.

How to adjust the oil supply to the chain in a regular chainsaw. Chainsaw chain lubrication

One of the most vulnerable components is the oil pump. In this regard, many owners of saws have a question about how to repair the oil supply on a chainsaw.

The task of the oil pump is to supply lubricant to the chain. this is necessary for its smooth movement along the guide bar. When the oil pump fails, the lubrication of the chain deteriorates, which reduces the efficiency of the chainsaw. In some cases, this leads to breaking the circuit. To prevent negative moments, it is necessary to repair the oil supply in a timely manner. How to do it?

How to set up a factory saw correctly

Carburetor tuning is divided into two main steps. The first is called the main one. This is done with the engine running. The second is done when the engine is warm.

See also  How to correctly sharpen the chain of the electric saw. When to do the work?

To successfully complete the carbon adjustment process, you need to read the specific model manual to determine the advanced configuration features of the device.

What you need in order to independently configure and adjust the chainsaw

Every carburetor owner should have the necessary tools to tune this system. There are three adjusting screws on the device. They have their own markings:

  • L. screw for low speed correction.
  • H. screw for high speed adjustment.
  • T. regulates idle operation, in most cases it is used for experiments.

Before adjusting the carburetor, you need to prepare the device:

  • The engine is warming up, i.e. starts about 10 minutes before repair, and turns off when starting work (see How to start a chainsaw).
  • Air filter checked and washed.
  • The chain stops by turning the screw T all the way (see chain oil).

About the carburetor device

The carburetor serves to mix the combustible consistency with air, observing the proportions established in advance. If clear doses are not followed, the proper functioning of the motor is at risk. When a huge amount of air enters during mixing of a component, and there is not enough fuel, then such a mixture is considered “poor”.

Over-saturation should not be allowed, because with a large amount of fuel, in comparison with air, malfunctions or engine wear are also likely. Adjustment of the carburetor is needed not only before the initial introduction, but also when any differences in its operation are revealed. Before using the chainsaw, do not forget to run it in.

The carburetor design contains a standard set of parts, but may vary slightly from manufacturer to manufacturer. Components:

  • The foundation. It is a special tube that visually resembles an aerodynamic structure. Air passes through it. In the transverse direction in the middle of the pipe there is a damper. Its position can be changed. The more it is pushed into the passage, the less air enters the engine.
  • Diffuser. This is the constricted part of the tube. With its help, the air flow rate increases exactly in the segment from which the fuel comes out.
  • Fuel supply channels. The fuel mixture is contained in the float chamber, then passes into the nozzle, from which it flows into the sprayer.
  • Float chamber. It is a separate structural element, reminiscent of the shape of a tank. Designed to constantly maintain an optimal level of fuel fluid in front of the entrance to the channel where the air comes from.

Not sure which chainsaw to choose? Read our article.

Looking for models that are cheaper, but reliable and time-tested? Pay attention to Russian-made chainsaws.

Alternatively, check out foreign chainsaw manufacturers such as STIHL.

Chainsaw chain lubrication system

To supply oil for lubricating the chainsaw chain, a special pump is used in the tool, which is dosed, depending on the number of engine revolutions, supplies lubricant to the saw bar.

The system uses oil to lubricate the chainsaw chain, which has increased adhesion properties, this is necessary to evenly distribute the oil around the entire perimeter of the tire and keep it on it even at high chain speeds. Let’s take a closer look at the oil supply system implemented in modern chainsaws.

Adjusting the oil supply to the chain of the Goodluck chainsaw

Remove carburetor if parts need to be inspected or repaired.

The design of different carburetor models is almost the same, so you can use the standard scheme when working with them. All items must be carefully removed and then set out removed in the following order so that you can successfully place items in place at the end of the renovation.

  • The top cover is removed. To do this, unscrew 3 screws in a circle.
  • Foam is also removed as the top of the filter conducts air.
  • Fuel hose removed.
  • It immediately displays the drive thrust.
  • The cable end is disconnected.
  • The gas hose can be completely removed by pulling it away from the fitting.

In order to finally prepare the carburetor for overhaul or replacement of the smallest parts, you must carefully disconnect it from the main system. Sometimes this requires further disassembly. Unscrew the components carefully and secure them in groups, as these small parts are easily lost.

What to check before working with a chainsaw

Checking the tightening of the nuts should be done before each start of work with the chainsaw. The fact is that a tool such as a chainsaw has a lot of vibration, and because of this, the screws and nuts in it can loosen. Therefore, it is very unsafe to operate a chainsaw in which parts are poorly fixed.

Checking the spark plugs of the chainsaw for carbon deposits (it should not be there) also needs to be done, and if carbon deposits are found, replace the spark plug with a new one.

Chainsaw chain lubrication

I want to use the TAD 17 chain on the STIHL 250 chainsaw. In winter it is very thick. will not the oil pump be worse from this, will it fail from overload? And if you can. what is the principle, in the pump, supplying oil to the chain?

The oil pump, which is put on 180. 250 Calms, is generally practically unkillable. it has a brass cylinder. Even working off eats twice as long as aluminum.

And the principle of operation is very simple. It’s a pity, there is no illustration, and I have not seen it anywhere. In words. two parts, a cylinder and a plunger rotating in it. The plunger has a milled flat at the end. When rotating, the plunger moves slightly back and forth.

Two holes are made in the cylinder opposite each other. When the flat of the plunger comes to the intake hole, it is slightly pulled out of the cylinder. a vacuum is created and a little oil is sucked in.

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When the flat turns to the discharge port, the plunger is pushed into the cylinder. pressure is created, oil flows through the channel to the tire. As you can see, in principle, you cannot damage the pump with as much thick oil as you like. it just won’t go, that’s all. _

Is it normal if oil leaks out of the reservoir when the chainsaw is idle? Those. if you have to cut a little, then pour a little? Otherwise, during the inactivity of the saw, the oil flows out of the tank completely.

Not. This not normal. The problem is either with the oil pump or with the reservoir itself. In general, oil and fuel consumption is usually 1 to 1. _

How to lubricate the leading sprocket of a tire on a chainsaw? For example, is Mobil or Jcb hydraulic grease suitable? What do you think?

they smear the asterisks on all tires (except for Shtilev ones), if you do not smear them, then the bearing may crumble, and then the tire will end, but about Calm tires. on the one hand, this is kind of a plus, and on the other hand, I saw Calm almost new tires with burned out bearings. _

The chainsaw drives the chain lubrication oil. At idle it pours very slowly, you give it gas. it pours in a stream. For five minutes of work, all the oil is poured out.

Does not respond to the position of the adjusting screw. Also, a little (0.5-1 mm), the sprocket, which rotates the chain, is loose. Who faced such a thing?

It is necessary to remove the asterisk and sort out the oil pump, and check the hoses for breaks. The leading sprocket must have a slight backlash. It should not be rigid, the vibrations will go to the crankshaft. _

The holes coincide when I put it on, maybe when the chain is tightened, the hole moves off because of this, oil does not get on the chain, but the chains, you can use one, how to blunt, remove, put a new one, sharpen the old, etc. in a cycle of three chains, do it for now the tire has not worn off?

The oval hole for lubrication on the body of the chainsaw is made in such a way that, in any position of the tire within the adjustment range of the chain tensioner, the alignment of the lubrication holes on the tire and the body does not disappear.

Ideally, a set of chains, when used on the saw one by one in a cyclic fashion, and the bar should fail at the same time. There are two lubrication options. Well, I mean. through what the oil is supplied.

Most tires have a separate hole for supplying lubricant to the chain, and these larger ones are used for tensioning. And some (and quite a few) do not have a separate lubrication hole.

And a free pull hole is used for lubrication. In this case, it will necessarily communicate with the tire groove. You can check with a wire. This is neither good nor bad, this is a feature.

So. in the second case, quite large oil losses are possible if the sprocket cover does not fit tightly. Then it just goes right through (unlike tires with a separate hole), and drips down. _

How To Fix A ChainSaw If It Won’t Oil The Bar And Chain. Video

After a minute of running the chainsaw at idle speed several times I pressed the gas a little, the oil to lubricate the chain began to flow very strongly onto the chain, which already formed a puddle of oil under the saw. Where is the chain oil adjustment screw? And how to make this adjustment correctly?

Your model does not have regulation of the oil supply to the chain, oil is supplied automatically. Carefully inspect and thoroughly clean the oil suction holes on the bar, carefully install the bar and chain. In theory, it should help.

If a puddle of oil forms under the saw, then the most likely is a sloppy tire or a skewed clutch cover, as a result of which there is a gap between the outlet of the oil pump and the lubrication hole of the tire, into which the oil goes. _

Tell us more about the oil pumps installed in chainsaws.

Very rarely, non-plunger pumps are used on modern chain saws (including electric ones).

Saw chain lubrication

The lubrication of the saw chain and bar is very important. The design of the chain saws includes a pump that supplies oil from the reservoir to the cutting system through special holes. Further, the saw chain itself distributes it. The grease is captured by the shanks and distributed throughout the entire bar and chain. For additional retention of lubricant in the chainsaw, special holes are drilled in the shanks or channels are milled. Also, in the chain lubrication system for chainsaws, connecting links are often involved, in which additional grooves are made for lubrication. Sufficient lubrication reduces friction and heat levels, thereby not only increasing the service life of each saw element, but also reducing the level of saw chain elongation. Therefore, it is in the interests of every saw owner to monitor the chain lubrication process so that in the event of a breakdown you do not have to look for new chains for chainsaws.

The lubrication process is quite simple: as the saw chain accelerates, small oil droplets form an oil trail on any light-colored surface if the end of the bar touches it. If there is no trace, there is no lubricant and you need to check for the presence of oil, clean the groove of the tire, adjust the saw pump, etc.

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And one more thing: in modern saws, it is allowed to install chains and bars of different lengths, but before using a new headset, you need to make sure that the oil pump installed in the saw will cope with its processing.

In the course of long-term operation of the chainsaw, some of its elements and assemblies may become unusable. One of the most vulnerable components is the oil pump. In this regard, many owners of saws have a question about how to repair the oil supply on a chainsaw.

3 Easy Ways To Check If Your Chainsaw Is Oiling The Bar & Chain. Video

The task of the oil pump is to supply lubricant to the chain. this is necessary for its smooth movement along the guide bar. When the oil pump fails, the lubrication of the chain deteriorates, which reduces the efficiency of the chainsaw. In some cases, this leads to breaking the circuit. To prevent negative moments, it is necessary to repair the oil supply in a timely manner. How to do it?

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The principle of operation and the device of the pump

Oil pumps can be made of metal and plastic. They are also divided into two types, which differ in their design:

The pump is driven by the movement of the drive sprocket. During the movement of the chain, oil is fed into a special channel located on the guide bar. At idle speed (when the drive sprocket does not rotate), the pump does not provide lubrication. this is done to save money.

The speed and volumes of lubricant supply to the chain are directly dependent on the number of sprocket revolutions. In some models of chainsaws, a manual adjustment system is provided using a special screw located on the body of the device. On expensive saw models, the oil supply is automatically adjusted during operation.

Chainsaw chain lubrication

Regardless of the type of chainsaw and the frequency of its use, caring for the saw and its spare parts is mandatory, because if you do not monitor the condition of the tool, it will very soon become unusable. Chainsaw chain lubrication, teeth sharpening, saw refueling, checking the tightening of nuts and candles. this is the key to the long and correct functioning of your tool.

During long-term operation of the chainsaw, its chain may become dull, and the cut will be significantly complicated. Therefore, it is necessary to periodically sharpen and lubricate the chain on chainsaws. Chainsaw chain lubrication is carried out with a special oil (although automobile oil can also be used). When the fuel mixture is completely used up, it is important that a small amount of chain oil remains. Separately, I want to say about Oregon chainsaw chains. these chains are very durable. The long service life of these chains is achieved by features such as automatic lubrication. This is why Oregon chainsaw chains last long and function well.

DIY chainsaw repair

In fact, this is a worm gear pair. The oil pump drive is driven either by the drive chain sprocket (photo 4, pos. 1), or by the crankshaft itself (photo 4, pos. 2).

In the first case, the plunger is mechanically connected to the drive sprocket and rotates only with it. Photo 4 pos. 1 shows the drive of the STIHL MS-180 chainsaw. The steel tendril clings to a special groove on the drive sprocket cup. When the sprocket spins, the drive spins with it. At idle speed, in this case, there is no oil supply.

In the second case, the drive is rigidly fixed on the shaft and constantly rotates with it. Photo 4 pos. 2 shows the oil pump drive of the Husqvarna 137, 142 chainsaw. It is pressed onto the crankshaft shank and rotates with it constantly. Therefore, oil is supplied constantly, even if the saw is in idle mode.

Usually, one of the gears (either on the plunger or on the drive) is made plastic in order to secure a part with a more complex structure or complex installation. The plastic part will break and wear out first.

On some saws, the driven oil pump can be additionally closed with a special cover (photo 5, the oil pump cover of the Chinese chainsaw 45-52 cc), which protects the worm connection and the pump itself from dirt and wood dust. On some saws, such as the Husqvarna 137, 142, the oil pump housing itself covers the connection between the drive and the plunger, thereby acting as a protective cover.

A certain amount of lubrication is required for the bar and chain to function properly.

In order for the design of the lubrication system existing on the chainsaw to give it out, the oil must have a suitable viscosity. Judging by the mechanics, the oil pump does not care what kind of oil you use: automotive, transmission or special. The main thing is that the viscosity is within the specified permissible range. However, this does not mean that any oil can be poured. Chain oil’s job is not to save you money on buying it, but to lubricate the bar and chain parts. Different oils do this differently. But more about this in another article “Chain oil. What to pour? “.