Reasons for not getting oil in the chainsaw

Advantages of high-class oil pumps

The maintainability of collapsible pumps is sufficient to restore the unit’s performance at home.

The gears of the pump drive of budget chainsaws are mostly polymer. Proprietary variable capacity models, advanced in terms of technical equipment, are equipped with drive mechanisms made of non-ferrous metals. The cost of such systems is compensated by an economical, up to 50% consumption of working fluid.

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

Reasons for Decreased System Performance and Efficiency

In the right amount, oil is not supplied to the chainsaw chain for several reasons. The most typical failures include:

  • clogging of the filter located in the oil tank;
  • mechanical failure of one of the elements of the pump worm drive;
  • in winter, the performance of the pumping device decreases due to filling the system with too thick oil.

In the latter case, the drive and all pump parts operate under increased loads, initiating serious mechanical damage.

Signs of a malfunctioning lubrication system

The correct choice of consumable lubricant and flawless operation of the system contribute to full lubrication, effective cooling of the saw equipment and full depletion of its resource.

There are several external signs that the chain on the chainsaw is not lubricated. First of all, these are:

  • constant oil level in the tank;
  • increased engine load;
  • accelerated wear of the cutting edges of the saw links;
  • characteristic smell of overheated wood.

In the simplest version, the cause of oil starvation can be the clogging of oil channels with sawdust. This drawback is typical for budget headsets that do not have convenient access to problem areas.

reasons, chainsaw

Self-help troubleshooting feature

A full-fledged independent repair of chainsaw chain lubrication, under all equal conditions, requires knowledge of the interaction of all elements of the system, the availability of tools and locksmith skills.

Restoring the operating parameters of many chainsaws involves the partial or complete dismantling of the accessory equipment. To carry out complex repairs, it is better to use the capabilities and technical potential of service workshops.

Parts with stripped threads and damaged spline joints, as well as non-separable structures that complete the lubrication system of popular STIHL 180 chainsaws and other models of the same type must be replaced.

If, when the tank is filled, oil does not enter the headset structure, the reason should be sought in the pump itself. Dismantling and disassembling the mechanism will help identify faulty parts and eliminate the malfunction by replacing them.

Checking the system for oil output and performance

Contamination of the oil filter manifests itself as a significant decrease in pump performance. It is not difficult to check this parameter. To do this, hold the headset of the saw operating at working speed over a clean sheet of paper.

By the density and size of the oil strip, one can confidently judge the state of the system and the complexity of the upcoming repair.

There is no definite answer to the question why the repaired lubrication system works, but oil does not go to the chain in the right amount. The reason for the failure may be mistakes made during assembly, failure of standard adjustments, discrepancy between the density and viscosity of the selected composition to the declared characteristics.

Oil starvation of the headset is possible when installed on a household saw with an unregulated pump of a longer productive tire, which is equipped with professional-grade chainsaw equipment.

Chainsaw chain oil does not flow: reasons and solutions

When the saw chain of the chainsaw is moved, a large amount of heat is generated in the groove of the tire due to friction. If oil does not flow to the chainsaw chain, it is necessary to stop work and take all measures to eliminate the malfunction of the lubrication system. The combination of heavy loads and overheating of the headset is accompanied by its accelerated wear and tear and early failure.

  • Without exception, all chainsaws and their electric counterparts are equipped with systems of the same type according to the principle of operation, through which the tire, the saw chain and its drive parts are lubricated.
  • This unit comes standard with a reservoir from which chain oil is fed to the inlet of a fixed or variable displacement pump.
  • Further, the working fluid in a metered amount enters the groove of the tire, in which the shanks of the saw chain are evenly distributed over the entire set and the working surface of the crown of the drive sprocket.
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3 Easy Ways To Check If Your Chainsaw Is Oiling The Bar & Chain. Video

The tires of performance headsets with a length of 400 mm are completed with a driven sprocket. Periodic bearing lubrication is carried out individually, after 6-8 hours of operating time.

The specifics of the repair of Chinese chainsaws

A significant share of the imported chainsaw range is made up of Chinese-made chainsaw equipment. Many models copied with more or less success from the best European designs.

The main advantage of Chinese products in the budget segment is a high level of interchangeability of spare parts, assemblies and systems. To repair Chinese chainsaws, in some cases, you can use accessories from models of other manufacturers that are identical in power and purpose.

What is a forced lubrication system?

STIHL chainsaw lubrication system and this unit in other power units are an identical unit, which depends on the speed and number of revolutions of the chainsaw heart, engine. Oil is supplied to the carved element, or rather to the tire, is dosed. This is possible due to a special pump.

The chainsaw chain lubrication pump transfers a consumable with high adhesion characteristics to the saw headset. You need to use only consumables of this quality, since only it, even at the maximum speed of the chain mechanism, can be evenly distributed throughout the tire.

What is the principle of this node?

The heart of the unit is a pump, consider the principle of its functioning.

  • As soon as the engine speed increases, the gear of the main shaft with the help of a worm drive makes the pump shaft work.
  • When the pump shaft is operating, pressure is created, which is transmitted to the oil line, which pushes the oil towards the tire.
  • The end of the lubrication channel is located at the junction of the crankcase of the power unit and the guide rail, where the longitudinal groove is located. The last is the lubrication channel.

What is the function of the groove? It supplies oil to the guide bar, no matter what the chain tension is. This is a guarantee that the oil gets on the tire even when it is in a non-standard position at the working moment.

Do not forget that the chain mechanism is involved in the lubrication process. Depending on the design features, the chain has holes or grooves through which the lubricant is distributed over the bar. Oil will flow to the tire faster as the engine rpm increases.

Certain models of the tool have pumps that can be additionally adjusted (the operator will be able to adjust the pump capacity, depending on the amount of work and the operating conditions of the saw). If necessary, the oil supply is reduced, if it needs to be increased, an appropriate adjustment is made.

Be sure to read the article about the peculiarity of supplying oil to the chain of a STIHL chainsaw. The system may differ depending on the brand of the chainsaw.

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The main advantage of this function is the ability to save consumables. By the way, if you are interested in what kind of oil to pour to lubricate the chainsaw chain, choose what is recommended by the manufacturer of your power unit.

Lubrication system device

The chain saw chain lubrication system, taking into account the manufacturer of the tools, may differ slightly in design features, in the parts used to create this unit. At the same time, the features do not affect the system connection diagram, as well as the total number of parts used.

  • oil reservoir located in the engine crankcase;
  • tank filter (element located directly in the tank);
  • an oil line that looks like a small diameter hose made of high quality rubber;
  • the pump itself can be considered the heart of this node;
  • feed force from the engine to the heart of the worm gear unit (worm-type gears).

In some works of powertrain repair specialists, the guide rail is described not simply as a saw headset, but as one of the components of the lubrication system. Why is that? This can be explained by the presence of special holes in this tire through which oil is supplied. By the way, the chain itself can be considered a participant in the transportation of lubricating consumables, since this mechanism also has parts related to the distribution of oil.

The main reasons why STIHL 180 oil is not supplied

the main reasons why STIHL 180 oil is not supplied.

Breakdowns and are able to eliminate them

Considering the types of malfunctions in the lubrication system, two categories can be distinguished:

  • general breakdowns found in all types of power units;
  • individual, which depend on the type of pump, on the features of the worm-type transmission, on the other structural features of a certain chainsaw.

Important! If the lubrication system does not work, it is not recommended to use the saw. This will damage not only the chain, but also the guide bar, as well as the main sprocket, which leads to the need for a large investment in repairing the device.

“Symptoms” of a faulty lubrication system:

  • the chain mechanism is dry, pale, there is no shine;
  • the chain stretched quickly after installation;
  • the guide rail heats up, its paint melts;
  • the oil remains in the same volume in the tank, despite the intensive use of the tool;
  • the cutting efficiency of the chain is significantly reduced.
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All this indicates a malfunction of the lubrication system or its functioning intermittently.

  • Dismantle the side tire.
  • We start the tool.
  • We gradually increase the speed, observing the end of the oil line.

If a consumable arrives, then the reason for the problematic operation of the lubrication unit, most likely, lies in a clogged filter, which can be cleaned or replaced with a new one. If possible, after this manipulation, the supply of consumables is regulated.

If the consumable does not arrive, then additional diagnostics need to be carried out, since, most likely, the problem is more serious.

Please note that it is not always necessary to dismantle the tire to check the lubrication system. Alternatively, the end of the tire is directed to the side (use a chock) from the direction of the cut, maximizing the speed, we keep the tire (its end) 10 centimeters from the chock. You will see the corresponding spots when the oil is fed.

Possible reasons for the lack of fuel supply

Oil may not flow to the chain only if there are 2 breakdowns. These include:

  • air leaks;
  • breakdown of the oil pump drive.

The main reason for the breakdown is air leaks. This can happen due to the depressurization of the oil hose during the use of the chainsaw. In this case, it is necessary to remove the hose from the hole. This should be done in the place where it is connected to the crankcase. Then the hose sits on the sealant and is set to its usual position. If this does not work, it is most likely that elasticity has been lost. For the further operation of the chainsaw, it is advisable to replace the hose.

The second reason is a breakdown of the oil pump drive. In the common people, this part is called a worm. When the drive fails, the oil will stop flowing to the chain. The oil pump drive is a round plastic ring with grooves inside. Continuous use of the chainsaw will wear out the internal parts, resulting in a chipping of the metal hook inside the drive. After this breakdown, oil stops flowing to the chain.

Reasons for stopping the oil supply in the chainsaw

A brief overview of why the oil in the chainsaw stopped flowing to the tire from the tank Support our channel with what you can.

Chainsaw fuel system: 1. fuel filter, 2. carburetor, 3. manual pre-priming pump.

If the carburetor is adjusted correctly, the fuel will be consumed in the allowable volume. Otherwise, it will end too quickly.

It is normal to slowly deplete fuel during saw operation. If it is absent, the chain is lubricated incorrectly, so the work with the chainsaw must be harmonious. It is necessary not only to be able to eliminate breakdowns, but also to identify them yourself.

You can manually change the fuel intake. The correct operation of the lubrication system is determined by applying the tire. If oil splashes appear, then everything is fine.

Troubleshooting

If oil is supplied to the chain in excessive quantities, and not only during the operation of the saw, but also at idle speed, manual adjustment should be made (if the pump design allows this). This is done with a screw located on the housing close to the guide rail, usually from the bottom or the side. Tightening the screw decreases the oil supply, loosening it vice versa. If the adjustment does not help, it is necessary to check the serviceability of the pump, as well as inspect the tire. it is possible that a gap has formed at the point of its connection with the body, through which oil flows past the chain.

Lack of oil can be caused by several reasons, for each of which there is a solution:

  • Defective oil pump. As a rule, it consists in an unusable gasket. In order to replace it, it is necessary to carefully disassemble the pump so as not to damage its moving parts. Then a new gasket is installed, after which the pump is assembled and installed in place.
  • Breakage of the oil hose. If the pump gasket is in good order, or its replacement did not lead to a result, you should check the tightness of the hose. If it is defective, it must be replaced. Otherwise, it will not be superfluous to clean it and secure it with a sealant.

If the reason lies not in a pump breakdown, 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 mess with your chainsaw but need oil flow adjustments? Ask for help from our specialists who will diagnose and repair the chainsaw, and, if necessary, will carry out repair work and adjust the lubrication level. Your saw will be as good as new!

Why does the chain fly off and break

If the chain flies from the chainsaw or it breaks, this means that the device has some kind of malfunction, under normal conditions it should not do this. There are three reasons why the chain fails:

  • Bus problems. They lead to a loosening of the tension, which can lead to the chain breaking. This problem most often occurs in the groove between the outer plate on the chain guard and the inner plate on the motor housing. The casing with the tire is fixed with a bolt, which during the operation of the chainsaw can loosen, as a result of which the tire begins to move or vibrate. To solve this problem, it is necessary to find and lower the chain brake, for which the tension screw, which is located next to the tire, must be turned until it is fully tensioned.
  • The chain has stretched out. Sagging may indicate a malfunction of the chainsaw mechanism. During operation, the metal is deformed, which means it can become 0.5-1 cm longer. In this case, it is recommended to replace or shorten the chain.
  • Drive sprocket is loose. To fix it, you need to remove the protective cover of the engine and spark plugs, and then pull out the air filter. The candle itself must also be unscrewed, after which a special stopper must be installed in its place, which fixes the piston. Turn the fastening disc clockwise until the piston stops in the extreme upper position. A thick rope folded several times can act as a stopper. After fixing the piston, tighten the drive sprocket. Assemble the chainsaw, installing all parts in the reverse order.
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Most problems can be solved by repairing. Only in exceptional cases will you have to change it.

Chainsaw chain is not lubricated

In the course of long-term operation of the chainsaw, some of its elements and assemblies may become unusable.

Oil does not flow to the chain

The fact that oil does not go to the chain can be recognized by the following signs:

  • dryness of the part and lack of shine;
  • its rapid stretching;
  • heat;
  • no reduction of oil from the tank;
  • decrease in cutting efficiency.

To check if there is oil supply or not, point the end of the tire to the side and increase the rpm as much as possible, while the end of the tire should be located 10 cm from the tree.

If oil stains appear on the surface of the wood, then there is no problem with the oil supply. Feeding may need to be adjusted.

The reasons for the lack of oil supply can be:

  • Missing threads on the oil pump shaft. In this case, it will need to be replaced.
  • Broken oil hose.
  • Defective threads on the pump drive gear.
  • No corkscrew of the main shaft. You can solve the problem by installing a stud of a suitable diameter and required length.
  • Blockage. The line can be cleaned by blowing it out with compressed air or using a thin wire. If the blockage is in the filter or in the pump itself, then these parts are best replaced.

Signs of a malfunctioning lubrication system

The correct choice of consumable lubricant and flawless operation of the system contribute to full lubrication, effective cooling of the saw equipment and full depletion of its resource.

There are several external signs that the chain on the chainsaw is not lubricated. First of all, these are:

  • constant oil level in the tank;
  • increased engine load;
  • accelerated wear of the cutting edges of the saw links;
  • characteristic smell of overheated wood.

In the simplest version, the cause of oil starvation can be the clogging of oil channels with sawdust. This drawback is typical for budget headsets that do not have convenient access to problem areas.

Self-help troubleshooting feature

A full-fledged independent repair of chainsaw chain lubrication, under all equal conditions, requires knowledge of the interaction of all elements of the system, the availability of tools and locksmith skills.

Restoring the operating parameters of many chainsaws involves the partial or complete dismantling of the accessory equipment. To carry out complex repairs, it is better to use the capabilities and technical potential of service workshops.

Parts with stripped threads and damaged spline joints, as well as non-separable structures that complete the lubrication system of popular STIHL 180 chainsaws and other models of the same type must be replaced.

If, when the tank is filled, oil does not enter the headset structure, the reason should be sought in the pump itself. Dismantling and disassembling the mechanism will help identify faulty parts and eliminate the malfunction by replacing them.

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?

Why does not oil flow to the chainsaw chain

The guarantee of the long service life of the chainsaw can be not so much the power characteristics of the tool, but the proper way of use and adherence to the rules of handling it. This primarily concerns the chain. Proper care of it will help maintain cutting performance for more than a dozen years. It implies not only adherence to the technology of working with the tool, you also need to carefully select the oil for the chainsaw chain, which is recommended to be used regularly.