What Oil Is Suitable For Lubricating Chainsaw Chains

Chain lubrication problems

The main problems with chain lubrication that the owner of a chainsaw may encounter during the operation of the tool:

  • No oil flows to the saw chain or chainsaw.

Cause: there is not enough oil for lubrication, the filter is clogged, the thread on the pump gear is torn.

Such a malfunction is eliminated by replacing the filter and adding oil to the crankcase, replacing the thread.

  • Depressurization of the oil line (typical for Stihl chainsaws).

Reason: you can recognize such a breakdown by the presence of oil smudges in the lower part of the chainsaw. To eliminate the problem, a sealant is applied to the seat of the hose after fixing it to avoid oil leakage during further operation.

oil does not flow to the saw chain

How to reduce the oil supply to the chainsaw chain

Why do you need chainsaw chain lubrication

You need to lubricate the chainsaw chain for several reasons:

  • Prevention of tire overheating;
  • Improving the running of the chain on the tire;
  • Reduced chain wear, slower grinding of blades;
  • Stable operation of the engine (the less the load on the tire, the more stable the engine works, with a tire on which there is no lubrication, the saw will not work for a long time);
  • Chain lubrication will ensure long-term operation at low temperatures.

Choosing oil with a different type of engine for a chainsaw

Diagram of the interaction of fuel and air flow of the chainsaw carburetor.

In order to lubricate the motors of a tool with a two-stroke engine, a combustion solution of fuel is used, since oil is not used in the fuel composition. If we take into account the differences between the types of oils used in different engines, for example, four-stroke or two-stroke, then there is a difference in the methods of their consumption.

The high-quality operation of a chainsaw with a four-stroke engine is due to the absence of oils in the combustion chamber, therefore different types of motors have different requirements. For example, two-stroke engines are usually filled with oil, which does not cause carbon deposits when burned.

A chainsaw with a four-stroke engine can work for a long time as a result of lubrication with oil, which is not subject to special requirements for its complete combustion. You can select additives without taking into account the ash content, the level of which should be more than 2%.

If the chainsaw is equipped with a two-stroke engine, which runs on oils suitable for four-stroke engines, as a result, ash settles on the walls in the combustion chamber. Ash can remain on the surface of the piston, and an abrasive powder is also formed that acts on the saw piston on the principle of sandpaper.

Checks for chain lubrication.

The erasure of parts of the structure of the toolkit is carried out and the term of its use is reduced. The presence of settled soot at the end of the use of the oil is harmful to the tool, which can lose quality of work due to the loss of power from its motor.

If soot is deposited in the exhaust ports, then their cross-sectional area is reduced, which is associated with difficulties during the exhaust gas emission and power loss. If ash is deposited on the piston of the cylinder, as well as on its head, detonation and drip ignition occurs. All this leads to a decrease in the saw power, which reduces its useful life.

For chainsaws, two types of oil are made, one of which is suitable for creating a fuel mixture. At the same time, gasoline of brand 92 is taken in a ratio of 50 parts of gasoline to 1 part of oil (Super 95) used in the operation of a two-stroke engine, respectively. Different manufacturers of chainsaws produce oil for them under different brands, of which there are a sufficient number. So, 5 liters of gasoline are usually mixed with 100 ml of the substance. If you use one that is not suitable for the model of the tool used, this will lead to damage to the saw and quick wear.

Unsuitable oil poured into the saw can simply settle in the cylinder on its walls if it entered the combustion chamber, but did not have time to burn. This approach to the use of a chainsaw leads to a slow reduction in the life of the tool or its trimmer. If the total life of the chainsaw is 400 hours, then this indicator can be reduced to 200 hours.

The saw chain should be lubricated with a special adhesive oil, which must be poured into the saw tank provided for this purpose. After turning on the saw, it is pumped up by a special pump in automatic mode, after which the chain is lubricated.

The chainsaw can, which includes two containers, can be filled with 6 liters of fuel mixture and 2.5 liters of oil. Changing this ratio, pour in 5 liters of fuel mixture and 3 liters of adhesive oil, the consumption of which will be 1 liter for a fuel mixture with a volume of 1.6-2.4 liters.

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 liquids of well-known brands into your chainsaw.

TOP-5 popular oils for chainsaw chain lubrication

Chainsaw chain oil brands rating. five leading global brands:

  • Ökoplus 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 adhesive 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.

What oils are not suitable for chain lubrication

The use of such 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);
  • Waste that has not passed filtration and sedimentation (mechanical particles that are contained in the mining will quickly lead to wear of the chain and tire), modern environmental standards prescribe that the mining should not be used, it should be disposed of according to the rules;
  • Transmission (not very suitable option due to viscosity mismatch).

Chainsaw chain lubrication system

Chainsaw lubrication system components:

  • Oil tank (located in the crankcase, you need to pour oil into it so that it goes to the chain);
  • Oil filter (installed inside the tank);
  • Oil line or oil hose (made of wear-resistant rubber);
  • Oil pump;
  • Worm gear;
  • Chainsaw tire (it has holes through which oil flows).

what oil to use for the chainsaw chain:

What kind of oil to fill the chainsaw tank correctly?

Two-stroke engine diagram.

When lubricating the chain links of the chainsaw, the composition is poured into a special container. Its use helps to reduce the frictional force that occurs between the bar and the chain links. Using special oils with a viscous consistency to lubricate the chainsaw chain will give positive results, ensuring a long service life of the equipment. In the absence of this substance, car oil is suitable.

Choose the right oil that allows you to properly lubricate the chain, depending on the time of year when it will be used. So, in the summer, mineral oils are best suited, the disadvantage of which is the crystallization of the structure of the substance at low temperatures. Therefore, in winter, experts recommend using oils with special additives that are synthetic, which makes them less viscous. This facilitates the use of the saw at low temperatures, in other words, up to 40 ° C.

The use of semisynthetics seems to be a more suitable option when using the saw at a moderate temperature, fluctuating in the range of 30. 25 ° С.

Oil supply for chain lubrication.

Such oils can be highly oxidized, and this is due to the presence of impurities in them, which can cause damage to the chainsaw. At the same time, sometimes during the operation of saws, gear or engine oils are poured into them, which is acceptable.

Motor oils, suitable not only for two-stroke, but also for four-stroke engines, are made on the basis of base oil and additional substances, that is, additives that may be different. Various solvents can be used as additives to improve the mixing of oils and fuels, their pumpability, and a possible spray method.

What to replace?

If it is not possible to use oil for a chain of the same brand from the manufacturer, an acceptable option would be to use engine oils of well-known brands, which can be used to replace chain oils. Of course, it is not advisable to constantly use the motor for the chainsaw chain, but as a temporary measure it is permissible. Manufacturers whose engine oils retain their working properties at temperatures down to minus 30 ° C: Nanotech Premium, Standard, Enkor, Makita, Makita Biotop, Makita Oregon, Stihl Bio Plus.

About chainsaw oil:

Ravenol

Which chainsaw oil to choose? Many people note the formulations of the Ravenol brand. So, Ravenol Saegekettenoel S 85 is a special mineral oil created in Germany from high quality base oil with the addition of a number of additives. It is suitable for saw chain lubrication and has good adhesion and lubricating properties. Thanks to special additives, oil remains on the chain even at high saw speeds, and the chain itself becomes more reliable in operation. Provides oil and reliable protection against corrosion, even when work is carried out in unfavorable conditions. Thanks to the use of this composition, you can:

What Oil Is Suitable For Lubricating Chainsaw Chains
  • Reduce vibration of the saw chain;
  • Reliably protect it from corrosion;
  • Cool the circuit due to good thermal conductivity;
  • Cut all types of wood quickly and cleanly.

Stihl BioPlus

Probably, every user knows Stihl brand products. Eco-friendly Stihl chainsaw chain oil is effective and is based on plant ingredients. The chain oil has a high quality that can be appreciated in all climates. Stihl products have always been popular with customers due to their environmental friendliness. Especially noteworthy is the Stihl BioPlus chain oil, which is formulated for the treatment of high-speed chains. It differs:

  • Resistant to oiling;
  • Excellent adhesion thanks to special additives;
  • Excellent protection for the cutting head;
  • Excellent fluidity that is retained even at low temperatures;
  • Oxidation resistance.

The most important thing is that the oil is absolutely safe for the environment, as it decomposes naturally.

Chainsaw oil. What oil to use to lubricate the chainsaw chain?

Chainsaws are a popular tool for those who have to deal with numerous household chores on their own. They can be used for different purposes. to harvest firewood, cut off dry branches. But in order for the device to last as long as possible, you need to properly care for it, choosing different compositions wisely. A special role is played by the oil for chainsaws, which is selected depending on the principles of the tool and its characteristics.

Oregon

What kind of oil to use to lubricate your chainsaw chain and how to choose one that can be used at any time of the year? The Oregon brand offers formulations that are suitable for all types of instruments. Viscosity stability is a guarantee that the oil is suitable for operation at any time of the year. The composition contains refined mineral oils to which additives are added. The peculiarity of the Oregon compositions is in their manufacture on the basis of high molecular weight compounds. The distinctive features of the oil include:

  • Overheating protection of the guide bar and chain;
  • Reduced vibration;
  • Prevention of corrosion due to oil film formation.

Thanks to special adhesion additives, such oil acquires greater stickiness, viscosity, so even at high speeds it will not splash and remain on the chain and tire. Thanks to the regular use of oil, you can reduce the load on the cutting attachment, and in general on the entire chain saw mechanism. Special additives reduce the energy consumption of the saw, increasing the efficiency of the sawing process. The main thing is that when using these funds, resinous deposits are not formed.

What to consider?

The saw chain must be lubricated with due care. First of all, you should choose a special oil that will not harm the oil pump. In addition, this will ensure the quality of the self-lubrication system. The chain also requires proper storage, that is, immersion in oil, and in case of wear, you should not try to revive the old chain. it is easier to replace it. How to choose oil for chainsaw chains so that it is safe and meets all requirements?

Husqvarna

The products of this brand also do not need unnecessary introductions, since they have proven themselves only from the best side. Attention is drawn to the Vegeil Husqvarna chain oil, which is plant-based, has good lubricating properties and is highly environmentally friendly. The oil is economical, biodegradable, has a low viscosity even at low temperatures. Due to their excellent performance characteristics, oils of this brand are considered one of the best.

Stihl semi-synthetic oil

Stihl chainsaw chain oil is an environmentally friendly lubricant, as it is made from high quality virgin raffinates. The oil contains no impurities that can pollute the environment. This tool can be used in any climatic conditions, and it will behave equally effectively even at low temperatures. Stihl chain oil reliably protects saw chains from wear. This composition can be purchased in different volumes. It depends on the characteristics of the chainsaw and the degree of load on it.

Divinol

This brand offers to evaluate a high quality chain lubricant, which has good adhesion and lubrication properties, due to which the lubrication is carried out efficiently, and the links and joints of the chain are reliably protected from wear. The optimal combination of viscosity and temperature characteristics ensures that this oil can be used in any season and at any temperature.

Divinol offers a variety of chainsaw oils. Which one to use? Zweitaktoel FF attracts attention for its economical consumption, connection with any fuel, prevention of aging of the fuel mixture and excellent protection against corrosion. In addition, this oil can be used at any temperature conditions. Divinol Kettenol and Divinol Kettenol Bio can be used to lubricate chains and bars of chainsaw. With these compounds, links and chain joints can be reliably protected against wear while ensuring economical use of oil. High quality organic oils of this brand provide excellent lubrication and tackiness, so their use is not only easy, but also environmentally friendly.

How to choose?

Each chainsaw has a carburetor two-stroke engine and two tanks: one is filled with gasoline, the other is filled with oil. When choosing a composition for lubrication, zoning plays an important role. it should be minimal. Another important indicator is resistance to low temperatures: the oil should not solidify with a strong minus, which will ensure the quality of the entire tool.

For lubrication, it is advisable to use an adhesive oil for chainsaws, containing special substances, thanks to which the composition adheres well to the chain. High-quality oil will remain on the chain as it rotates, and the chain itself will be more reliable in operation.

Another important indicator of lubrication is density: if the composition is liquid, it will be consumed in greater quantities. In order not to harm the environment when using a chainsaw, it is important to use plant-based oil. its waste will decompose in the natural environment.

What chainsaw oil to choose, because modern manufacturers offer a wide range of options? Among the specialized manufacturers, one can note such brands as Divinol, Bio-Kettenol, Ravenol, VegOil, Mobil, Castrol, Shell. Let’s consider the features of their products in more detail.

Stihl adhesive oils

The company’s website contains the following adhesive oils designed for various operating temperatures and having a good lubricating performance:

  • ForestPlus adhesive oil. recommended for use at temperatures up to. 15 ° C, shelf life under storage conditions is 3 years. Supplied in 1 liter or 5 liter containers;
  • Bioplus. its peculiarity is a plant base, which allows it to decompose quickly when it enters the soil. Used up to minus 15, supplied in three, five and one liter containers;
  • The latest SynthPlus oil is characterized by its ability to maintain performance at minus 25 ° C.

Manufacturers of adhesive oils

Almost all manufacturers of chainsaws are engaged in the production of consumables for them, explaining by the fact that these products are most suitable for use in conjunction with their saws. There is no information about how true this is, but based on the experience of operating and repairing chainsaws, it can be noted that there are no significant differences in the service life of parts or at least visible wear.

But the fact is the fact, the manufacturers recommend and cannot be hidden. So, back to the manufacturers, and let’s start with the popular Stihl brand.

HUSQVARNA oils

The company offers its customers Husqvarna Bio Advanced oil for use in normal and extreme conditions. The oil is made from plant components and is safe for the environment, it is supplied in one liter and five liter containers.

As an economical solution, the company has Vegoil oil, according to the manufacturer, its consumption is reduced by 40% in comparison with others. Supplied in a liter container.

The company also produces bearing grease, which it recommends for lubricating the bearings of the drive sprocket and the sprocket on the saw bar.

Less common, but popular with chainsaw owners, are:

  • Polar Lube mineral. Oleo-Mac;
  • Adhesive CHAMPION, sold in containers up to 10 liters, which is convenient for use in forestry;
  • Makita Biotop;
  • Anchor.

You can get acquainted with some oils for chains by looking below, in it a seller of a large network of tools comments on the use of adhesive oils from various manufacturers.

Chainsaw sprocket lubricant

To increase the service life and reduce friction on the drive sprocket, the manufacturer equips this mechanism with a needle bearing, which must be lubricated periodically. Stihl multipurpose grease can be used for lubrication.

If you do not want to overpay, it is better to use an inexpensive, but no less high-quality option, Litol or Litol 24 grease. Due to its viscosity, Litol will easily replace the original.

It is possible to lubricate the chain saw tire sprocket with the same lubricants as the leading one, using a special filler for this. This allows the lubricant to be pressed in through the technological holes in the tire to the sprocket bearing.

Chainsaw chain oil. which one to use

You are a recent owner of a chainsaw, and you still do not know which chain oil is best to use. Lack of this knowledge can have a detrimental effect on the tool, since the type and quality of the lubricant determines how long the tire and the tool chain will maintain their performance.

After reading this article, you will fill the knowledge gap, because K. We will consider the use of oils, from various manufacturers and brands, to reduce friction between the parts of the saw headset. And also we will figure out what additional lubricants are used to service the chainsaw in order to maximize its service life.

What oil to use to lubricate the chainsaw chain

The answer to this question is quite simple, for this you need to open the instructions for any saw and it will indicate that you need to fill in oil that has a good adhesion effect.

What is it for? The fact is that the chain moves along the tire at a high speed, and if oil with low adhesion is used as a lubricant, then most of it, by inertia, flies off the end of the tire and lubrication of its lower part does not occur. This phenomenon can be observed with a little experiment. Start the chainsaw, point the end of the tire towards a bright surface and add maximum gas. As a result, oil stains will appear on it, which are proof of the theory.

How to replace the original expensive oil and is it worth

In situations where it is not possible to use original ones, they can be replaced with oil for car engines. Cheap automobile oils such as autol or diesel lubrication options, due to low adhesion properties, are unsuitable for long-term use.

Some owners, despite the recommendations, still use analogues, preferring to change the tire and chain more often, but here everyone decides for himself. Such oil cannot have any negative effects on the lubrication system, which means that the only difference is in the quality of the tire protection against chain friction.

A little about the lubrication of the chainsaw chain by working off

Waste oil is called oil that has served its life in an engine or gearbox of a car. Many chainsaw owners, trying to save money, use it to lubricate the chain, which translates into serious repair costs.

The reason for these breakdowns is the presence of metal shavings in the mining, which settles in the crankcase of the car, and at the time of draining the mining from the pallet, it merges with it.

Once on the tire, metal shavings act on its surface as an abrasive. In simple terms, instead of protecting the surface, working out increases the wear on the tire, drive sprocket, and driven sprocket bearing on the tire. Working off also affects the chainsaw chain, in those places where it bends and increases the risk of breaking the chain mechanism.

Conclusion: to lubricate the chainsaw chain, you need to use original lubricants from manufacturers. It is unacceptable to use exhaust from the car engine. In the absence of high-quality oils, a short-term replacement with clean automobile oils is allowed.

Sprocket lubricant

At the end of the chainsaw bar, there is a driven sprocket that rotates the chain. It also needs to be lubricated periodically. For this, thick materials are used. STIHL multipurpose grease can be used. Domestic lithol-based lubricants are also suitable. There is a special hole on the sprocket lubrication tire. You need to pump grease into it with a grease can or a syringe.

It should be noted that with frequent use of the tire toe, for example, when cutting grooves, the load on the sprocket increases and it needs to be lubricated more often.

Chainsaw chain oil selection rules

All modern chainsaws have a separate oil circuit for lubricating the cutting elements of the chain.

The quality of the saws largely depends on their condition and working conditions. Therefore, companies that produce accessories for chainsaws create special brands of oils that provide reliable surface lubrication.

Main manufacturers

Leading manufacturers of chainsaws produce consumables and lubricants for them, including those specifically for chains and tires. All other things being equal, you should give preference to the products of the manufacturer of the chainsaw itself. But the quality of the best brands is such that the use of lubricants from another manufacturer will not have a negative impact on work.

The most famous brands are the German company STIHL, the Swedish company Husqvarna and the Japanese company Makita. They provide a fairly wide range of adhesive oils, among which there are:

  • Mineral Stihl ForestPlus is designed to work at temperatures up to 15 ℃. Standard packing. 1 and 5 liters. For long-term work, it has recently been produced in a 20-liter container;
  • The highly sustainable Stihl BioPlus is plant-based. Once in the soil, it quickly decomposes without contaminating it. The working temperature is also up to 15 ℃. Packing. 1 and 3 liters;
  • For low temperatures, the semi-synthetic Stihl SynthPlus is suitable, working usable up to 25 °.
  • Eco-friendly, biodegradable Bio and Bio Advanced. It is presented as a universal multigrade oil. Bio Advanced option. improved oxidation resistance and up to 10% better lubricating properties;
  • Makita. Biotop oil;
  • Champion adhesive oil.

Of the Russian brands especially for chains there is ZUBR ZMPM-M. There are other, less well-known manufacturers, whose lubricating oil is noticeably lower in price.

How to replace expensive oil

Special branded chain lubricants have the disadvantage of their high price. Buying a liter of other expensive oil is not burdensome. And if work is coming, requiring several liters, or even tens of liters, thoughts of saving will certainly arise. The main thing is not to go to extremes when considering options. You can save on oil to such an extent that you have to change the chain several times, or even the tire itself or the oil pump.

There are three replacement options. Firstly, you can use specialized products of little-known manufacturers for chain lubrication. But such oils still need to be looked for. In addition, there is a risk of stumbling upon a low-quality product.

Application of oils for automobile engines. They can be used as a temporary replacement, but they cannot boast of high adhesion, so the quality of their work will be clearly worse than special ones. For this reason, it is not recommended to use spindle and diesel oils. the worst in adhesion.

And we must definitely say about one more option. working off. This is the name of the oil that has worked out its life in the engine and is drained from it during replacement.

In fact, this is not an option at all. Metal particles are always present in mining. And if they may not damage the chain itself, then they certainly will not damage the oil pump and the entire lubrication system. On the forums on the Internet, you can find a “killer” argument in favor of working off. that the Soviet Druzhba chainsaw had no chain lubrication at all and worked. So you can pour anything. and so it will do. Well, Stihl will also work with a working off or even with a non-lubricated chain. The question is how long it will work and how many chains will have to be changed during this period.

Caution for those who have a chainsaw within the warranty period. Masters of warranty workshops are able to identify cases of use of low-quality chain lubrication. Especially when using mining. Repairs under warranty will be denied immediately.

When and how to fill

Where to fill the chain oil is clear. There is a separate container for this. In most chainsaws, the size of this container is calculated based on the volume of the saw’s gas tank. When both tanks are full, they empty at about the same time. Therefore, it is recommended to fill the full volume of the oil tank at the same time as filling the fuel tank. Then you don’t have to be distracted by topping up twice.

Before starting work, it is useful to check if oil will flow to the chain. To do this, simply point the end of the tire onto a flat surface. Some of the grease will fly off the edge of the tire. Droplets on the surface indicate normal system operation.

At high negative temperatures, summer oil thickens and its lubricity deteriorates. Therefore, it is worth using brands designed for winter conditions. If this is not possible, then it is worth taking the time to dilute the existing oil to reduce its density. It is best to dilute with kerosene in a ratio of 1 to 4.

Some models have an adjustable feed rate in the lubrication system. It is useful for correcting in the event of a change in grease type.

If you run out of oil from one manufacturer, and the same type is available, but from a different company, then their mixing is allowed, provided that they are used immediately. Leaving such a mixture for a long time is not worth it.

What oil should you use

It is widely believed that quality branded chainsaw oil should only be used in the engine’s gasoline-oil mixture. However, the choice of oil for lubrication is a simple matter. Anyone will do, if only it gets to the right place.

But adding lubricant to the chain is half the battle. It is necessary that it hold on to the metal and remain on the lower edge, with which the tree is sawn. For this purpose, substances with increased adhesion are used, that is, the ability to adhere to the surface and stay on it. Oil with poor adhesion will fly off the rapidly rotating chain, splattering around uselessly. Of course, some part will remain, but it is not known whether this will be enough so that during intensive work the circuit does not overheat.

Mineral materials that provide chain and bar lubrication at positive temperatures crystallize and thicken in the cold. This will cause the lubrication to be difficult to feed and increase the load on the oil pump. Its service life is shortened and it may fail prematurely. In winter, it is necessary to choose synthetic materials with special additives that provide reliable lubrication in frosts down to 40 ℃. At low frosts and temperatures near zero, semi-synthetics are used.

Estimates of the use of different oils for lubricating chainsaw chains boil down to the fact that the wrong choice can increase the engine load by up to 10%. The service life of the chain and guide bar is further reduced.

Due to the fact that recently great importance has been attached to ecology, more and more branded oil products are made on the basis of decomposing substances. But during long-term operation, the consumption of chain lubrication can be measured in liters. And for people who are not indifferent to nature, this will be another reason to choose an environmentally friendly product. If you do not care what your area is sprayed with and what marks remain on the wood after cutting.

Oil does not flow to the chain, what are the reasons

It is not always during operation that you can immediately see that oil is not being supplied to the chainsaw chain. Signs of lack of lubrication:

  • The level in the tank does not drop;
  • The sawing is done with difficulty, accompanied by the smell of burnt wood;
  • No oil droplets fly off the tip of the chainsaw tire.

Having found a malfunction of the oil system, you need to establish its cause. There are few of them. clogging, broken hose or malfunction of the oil pump.

Most often, the oil supply channel is clogged with dirt and sawdust. Air blowing or fine wire cleaning is sufficient to correct the fault. The oil reservoir has its own internal filter. When using normal oil, clogging is unlikely, and when filling, it is quite possible. Have to clean up.

The oil hose may be damaged or completely cut off. You can temporarily seal the damaged area, but it will be safer to replace it with a new one.

And the most serious problem is the breakdown of the oil pump. The reasons may be different. the teeth of the worm gear are worn out, the plunger has jammed, and others. Removing the pump and replacing a damaged part yourself will not be easy. It is safer and easier to contact the service center.