Electric saw is spinning but does not saw. Malfunction of the chainsaw engine

DIY chain repair

Collector motors of alternating current are quite widely used as power units of household appliances, manual power tools, electrical equipment of cars, automation systems. The engine connection diagram, as well as its device, resembles a diagram and device of a direct current electric motor with sequential excitement. The scope of such motors is due to their compactness, low weight, ease of control, relatively low cost. The most in demand in this production segment are low.power electric motors with a high speed.

The repair of electric saws falls on the owner’s shoulders. But this applies only to minor breakdowns. When identifying serious malfunctions, the manufacturer recommends contacting the service center. Among the most common malfunctions can be distinguished:

This malfunction can be caused by the lack of power, overheating of the engine or a malfunction of the launch system.

Design features and principle of action

In fact, the collector engine is a rather specific device that has all the advantages of a direct current machine and, due to this, has similar characteristics. The difference between these engines is that the case of the stator of the AC motor to reduce losses on vortex currents is made of separate sheets of electrical steel. The winding of the excitation of the machine is connected sequentially to optimize operation in the household network 220V. There can be both one- and three-phase, thanks to the ability to work from direct and alternating current, they are also called universal. In addition to the stator and rotor, the design includes a brush-collection mechanism and a tachogenerator. The rotation of the rotor in the collector electric motor occurs as a result of the interaction of the anchor current and the magnetic flow of the winding of excitation. Through brushes, the current is supplied to the collector assembled from the trapezoidal section plates and is one of the nodes of the rotor, sequentially connected to the stator windings.

In general, the principle of operation of the collector engine can be clearly demonstrated with the help of the experience known from the school with the rotation of the frame placed between the poles of the magnetic field. If the current flows through the frame, it begins to rotate under the influence of dynamic forces. The direction of movement of the frame does not change when changing the direction of motion of current in it.

The consistent connection of excitement windings gives a large maximum moment, but there are large idle speeds that can lead to a premature failure of the mechanism.

What may be problems

All problems can be divided into two large groups:

The engine breakdown is characterized by the following:

• The equipment does not start, stalls;
• does not pump fuel in a primer;
• unstable work, swimming;
• It works at idle, during load it can swim, stall, shoot.

If the problem is in other nodes, the following phenomena are noted:

The main malfunctions of the chainsaw: Reasons

Every year, manufacturers develop equipment that is more complicated and reliable in design, but simple for operation. Chain saws. no exception. But no matter what modern functions are included in the device, it is difficult to avoid a malfunction of the chainsaw. Diagnosis of breakdowns can be carried out independently using the instructions for operation. Consider the main types of malfunctions.

Saws crookedly

We will figure out the reasons why the chainsaw saws crookedly. This is manifested during the saw under load of the trunks, when the tire gradually leads to the side. This is especially noticeable when a wide trunk is drunk by double cut, first from above, then from below. As a result, the output is an uneven sawn surface, which in some cases is unacceptable. Example. ending of bars.

• Uneven sharpening of the teeth of the saw. This is the most common reason why the device cuts obliquely. The teeth should grind at the same distance to avoid problems when sawing. The optimal output is the acquisition of a sharpening machine, which is tuned to the most worn tooth of a saw mechanism. Or contacting a workshop where there is such equipment. The result is all teeth of the same size.
• The chain or tire used is not suitable in parameters. When buying these elements, it is necessary to take into account the width of the groove. This is important not only for the correct operation of the equipment, but also for safety when cutting.
• The device’s saw set is very worn out. If the device has poorly saws, increased wear of the headset is possible. Visual inspection will indicate the problem. If the right or left side of the tire is more worn stronger, it must be changed to a new. With increased wear, it makes sense to complete a full diagnosis of a lubricant system. This is often the cause of increased wear of one of the sides of the chain.

In the case of complex repair, it is better to give equipment to a specialized workshop.

Hearing

If a new chainsaw is heated, this is due to the fact that the elements of the piston group have not yet been lost. In this case, it is necessary to carry out running.in, avoiding overheating. If the problem is associated with an already operating device, the reason may be in the late ignition. Sometimes the device overheats due to violation of the proportions of the preparation of the combustible mixture.

He is not gaining momentum

The problem is manifested when starting. Basopile does not develop speeds, works with jerks or in idle, stalls, starts with a pusher, beaten back during the factory.

• If the device does not hold idle speed, the causes can be in a filter block, a poor.quality combustible mixture, carburetor, incendiary module or deformation of motor elements at load.
• If the saw does not develop traction at full power, pay attention to the carburetor. There is a chance that the settings of the working unit are set incorrectly. Adjust Zhekeler “n” responsible for the cut at the load. To do this, set up fuel supply at high rotation speed.
• Does not drop in momentum. The problem is that the device can quickly develop speed at high speeds and not throw it away. It is necessary to check the functioning of the throttle, switching the toggle switch, the presence of a corkscrew on the val of a throttle.
• Uncontrollably gaining speed of rotation. The reasons can be in a carburetor, fuel system, connecting elements leading to a carburetor.
• The technique only works on the suction. The reason is the improper preparation of the fuel mixture, a large amount of oil.

These are the main, most common causes of malfunctioning this type.

Oil flows

Owners of chainsaws often face a problem when oil flows from under the unit. The reason lies in the damaged oil hose, which is connected to the pump.

There is no spark

Ignition problems are associated with a weak spark on a chainsaw or with its absence. When checking the spark plug, there may be a blue spark. This suggests that everything is in order. If the spark is gone, check the high.voltage cable. It may have a wire break. Another option why there is no spark, associated with the wrong gap between the ignition module and the magneto pipeline of the flywheel. The norm for this indicator is 0.2 mm.

Gasoline does not act

To find the focus of the breakdown and determining why the device does not pump gasoline, disconnect the gas pipeline from the carburetor. Try to download fuel. If it is submitted slowly, problems can be:

Experts do not pour fuel into the container to the edges. This can disable the device.

Smoke

If the technique smokes, its power falls, pay attention to the engine. An unstable launch, overheating may also indicate its breakdown.

The chain is spinning at idle

If the chain of the chainsaw is idle at idle, this may be due to the following factors:

• The clutch spring burst. Visual signs: the chain is spinning almost always, even with an unstable starting of the engine.
• A piece of clutch broke off, the spring flew. Signs: chainsaws itself are gaining momentum, extraneous sounds are heard.
• Clutch wear. Signs: Frequent slipping of the chain mechanism.

The work of the saw’s headset at idle is related to clutch problems.

The chain does not rotate

Why the chain of the chainsaw does not rotate when the engine works even at full speed?

• Leading star. Either she jammed, or the crown is so worn so that it is not affected and chaindoes not spin on a chainsaw. In any case, you need to assemble an asterisk to find out the exact reason why the chain does not spin. If the crown is worn, it is necessary to replace the asterisk (or the crown, if the asterisk has a prefabricated structure).
• The brake circuit jammed as a result of the asterisk is blocked by the brake mechanism, while the engine works. Stop the engine and release the brake. If this happened under the load of the brake mechanism, it will have to be changed, like an asterisk, since due to high temperature many elements can melt and overheat.

The main malfunctions of the chainsaw: Reasons

Every year, manufacturers develop equipment that is more complicated and reliable in design, but simple for operation. Chain saws. no exception. But no matter what modern functions are included in the device, it is difficult to avoid a malfunction of the chainsaw. Diagnosis of breakdowns can be carried out independently using the instructions for operation. Consider the main types of malfunctions.

Saws crookedly

We will figure out the reasons why the chainsaw saws crookedly. This is manifested during the saw under load of the trunks, when the tire gradually leads to the side. This is especially noticeable when a wide trunk is drunk by double cut, first from above, then from below. As a result, the output is an uneven sawn surface, which in some cases is unacceptable. Example. ending of bars.

• Uneven sharpening of the teeth of the saw. This is the most common reason why the device cuts obliquely. The teeth should grind at the same distance to avoid problems when sawing. The optimal output is the acquisition of a sharpening machine, which is tuned to the most worn tooth of a saw mechanism. Or contacting a workshop where there is such equipment. The result is all teeth of the same size.
• The chain or tire used is not suitable in parameters. When buying these elements, it is necessary to take into account the width of the groove. This is important not only for the correct operation of the equipment, but also for safety when cutting.
• The device’s saw set is very worn out. If the device has poorly saws, increased wear of the headset is possible. Visual inspection will indicate the problem. If the right or left side of the tire is more worn stronger, it must be changed to a new. With increased wear, it makes sense to complete a full diagnosis of a lubricant system. This is often the cause of increased wear of one of the sides of the chain.

In the case of complex repair, it is better to give equipment to a specialized workshop.

Hearing

If a new chainsaw is heated, this is due to the fact that the elements of the piston group have not yet been lost. In this case, it is necessary to carry out running.in, avoiding overheating. If the problem is associated with an already operating device, the reason may be in the late ignition. Sometimes the device overheats due to violation of the proportions of the preparation of the combustible mixture.

He is not gaining momentum

The problem is manifested when starting. Basopile does not develop speeds, works with jerks or in idle, stalls, starts with a pusher, beaten back during the factory.

• If the device does not hold idle speed, the causes can be in a filter block, a poor.quality combustible mixture, carburetor, incendiary module or deformation of motor elements at load.
• If the saw does not develop traction at full power, pay attention to the carburetor. There is a chance that the settings of the working unit are set incorrectly. Adjust Zhekeler “n” responsible for the cut at the load. To do this, set up fuel supply at high rotation speed.
• Does not drop in momentum. The problem is that the device can quickly develop speed at high speeds and not throw it away. It is necessary to check the functioning of the throttle, switching the toggle switch, the presence of a corkscrew on the val of a throttle.
• Uncontrollably gaining speed of rotation. The reasons can be in a carburetor, fuel system, connecting elements leading to a carburetor.
• The technique only works on the suction. The reason is the improper preparation of the fuel mixture, a large amount of oil.

These are the main, most common causes of malfunctioning this type.

Oil flows

Owners of chainsaws often face a problem when oil flows from under the unit. The reason lies in the damaged oil hose, which is connected to the pump.

There is no spark

Ignition problems are associated with a weak spark on a chainsaw or with its absence. When checking the spark plug, there may be a blue spark. This suggests that everything is in order. If the spark is gone, check the high.voltage cable. It may have a wire break. Another option why there is no spark, associated with the wrong gap between the ignition module and the magneto pipeline of the flywheel. The norm for this indicator is 0.2 mm.

Gasoline does not act

To find the focus of the breakdown and determining why the device does not pump gasoline, disconnect the gas pipeline from the carburetor. Try to download fuel. If it is submitted slowly, problems can be:

Experts do not pour fuel into the container to the edges. This can disable the device.

Smoke

If the technique smokes, its power falls, pay attention to the engine. An unstable launch, overheating may also indicate its breakdown.

The chain is spinning at idle

If the chain of the chainsaw is idle at idle, this may be due to the following factors:

• The clutch spring burst. Visual signs: the chain is spinning almost always, even with an unstable starting of the engine.
• A piece of clutch broke off, the spring flew. Signs: chainsaws itself are gaining momentum, extraneous sounds are heard.
• Clutch wear. Signs: Frequent slipping of the chain mechanism.

The work of the saw’s headset at idle is related to clutch problems.

What you need to know before repair

“Golden” rule of independent repair. use only original parts and spare parts. If you try to install inappropriate elements, other brands and configurations, then this is a 100%guarantee of future breakdown and failure of an electric saw. Before fixing the tool, create the necessary base for yourself. You will need:

Original factory details from the same manufacturer. 2. Pla.rosical towers, wrenches 3. Electric tester, voltmeter. four. Soldering iron. 5. Round and oval files, mandrels and caliber for sharpening. 6. A machine for sharpening a circuit (ideally, you can sharpen it and manually).

Why does an electric saw do not turn on

What to do if the device does not give signs of life at all? If the saw does not turn on, it is possible:. low voltage in the network. Measure with a voltmeter. If below 180, connect the equipment through a voltage stabilizer. Sometimes, with planted networks, it is recommended to buy a good generator with AVR, and feed all power tools from it.- Damaged power cable. You need to check the cord and all connections. Replace or solder the gap and insulate.- The start button does not work. Disassemble. Report or replace. Sometimes, with a faulty button, power is used directly, but this option is not suitable for electric saws. safety is critically decreasing.The chain brake worked. Check it. It turns on at a certain position of the brake element shield. The shield should be slightly moved away.- The thermal protection relay worked. Perhaps if you turn on the overheated device. It is necessary that he cools down, and perhaps the relay itself needs to be repaired.- cooked brushes worn out. Frequent malfunction. It happens even in an almost new tool. As a rule, power loss is observed first.Replace graphite contacts with new.- damage to engine windings. Overheating windings are destroyed. We need to rewind. This is a rather complicated process. You need to disassemble the motor, remove the burned winding and clean the grooves from insulation. And then make everything in the reverse order. And to wind the coil, use a winding machine. In general, if you are a master in an electrician, then go. If not, bring to the service.

Often, when working, the user hears an unpleasant, cutting ear, and feels the smell of Gary. This is what we talked about at the very beginning of the article. the lack of oil in the mechanism. Check the probe: if the crankcase is full, then the conductive channels are polluted. Eliminate the malfunction is simple. pour oil or clean the furrows. Quite often, the tool begins to “bug” when stopping. Stops not immediately, but after a while. The longer I drank in use, the more this time interval becomes. To eliminate the problem, it is necessary to replace the brake tape. She simply worn out and stretched out. Sometimes during sawing, the device suddenly begins to vibrate strongly and lose power. The reason is already known to you. brushes have worn out. If you do not replace, then soon the saw will stop turning on. The chain does not rotate. There are several possible faults here:. the teeth of a plastic gear “licked”. It is part of the gearbox and the first takes on a blow in case of critical overload. And that’s great! It is better to replace the gear than to throw the burned motor or, worse, get an injury. When replacing it with worn with a new one, lubricate the gear with oil well wear of other details (leading stars, fist, springs, clutch, bearing cups). Having determined the erased or crushed part, replace it with the original spare part The tension of the chain is incorrectly adjusted. The situation arises both with key and non.cloth stretch. The operating instructions always describe how to pull the chain correctly and check its tension.

Millions of chainsaws are crookedly sawing from this. Top tire and chain

Crookedly from this. What to do if roller croaking. This is a kind of top fault

If you see black carbon deposits or a lot of fuel, it is possible that the carburetor incorrectly regulates fuel supply.

Starting starts, but immediately stops, the problem is to search for a carburetor stream or fuel filter. Perhaps they are clogged.

To check if the partition is damaged, it is necessary to disconnect the fuel hose from the carburetor and see if the fuel mixture flows from it.

If the saw does not start hot, the problem can be in the muffler. Sometimes it clogs from exhaust gases.

Quite often the saw gap occurs due to a small amount of lubrication for the chain. This happens with clogged channels or leakage of the oil pipeline.

Also check the joints of the pipes with the butter of the oil pump, as they flow.

Very bad when a failure occurred in the cylinder. When checking it or chips, this can be the reason for the problem.

Chainsaw does not throw back speed

In some cases, the benzoin acetic regulation quickly reaches a certain level of power and does not reset speed. To eliminate it is not enough to adjust the screws on the case or clean the carburetor. The essence of the problem in the large consumption of the fuel mixture.

The following actions are performed:

• The serviceability of the gas cable is checked;
• The return spring is being examined. it can jump off;
• The back damage should be completely tight.

The engine “shoots

If during work there are extraneous sounds similar to shots, then the problem with the silencer or carburetor. How to make a chainsaw work quietly? It depends on which unit in which node is.

A simpler way to start a flooded engine:

• We unscrew the candle and check its condition. Wet. it means flooded: we dry, screw it back;
• We completely open the air damper;
• Click on the gas until it stops;
• We begin to start the engine. After several efforts, the starter, excess gasoline will go through the exhaust and the saw will start. Perhaps it will die out immediately. then we continue for some time for some time;

Lubricated chain problems

For normal operation, the chain should be constantly in grease to reduce friction between the tire and links, as well as prevent premature wear of links.

• If the chain is not lubricated on the chainsaw, then the problem with the oil pump is not supplied due to clogging of the channel. Lack of lubrication is the reason why the chain is stretched or why the chain is torn. Clean the channels, the smallest particles of chips constantly get there and score them. Can also break the oil hose. If you need an adjustment of the oil pump or its repair, it is better to contact the service.
• Sprinkles oil from the chain. Incorrectly selected lubricant. it is too liquid, so not so much lubricates the links as spraying on the wood. Replace the lubricant with a thicker.

Why does an electric saw do not turn on

What to do if the device does not give signs of life at all? If the saw does not turn on, it is possible:. low voltage in the network. Measure with a voltmeter. If below 180, connect the equipment through a voltage stabilizer. Sometimes, with planted networks, it is recommended to buy a good generator with AVR, and feed all power tools from it.- Damaged power cable. You need to check the cord and all connections. Replace or solder the gap and insulate.- The start button does not work. Disassemble. Report or replace. Sometimes, with a faulty button, power is used directly, but this option is not suitable for electric saws. safety is critically decreasing.The chain brake worked. Check it. It turns on at a certain position of the brake element shield. The shield should be slightly moved away.- The thermal protection relay worked. Perhaps if you turn on the overheated device. It is necessary that he cools down, and perhaps the relay itself needs to be repaired.- cooked brushes worn out. Frequent malfunction. It happens even in an almost new tool. As a rule, power loss is observed first.Replace graphite contacts with new.- damage to engine windings. Overheating windings are destroyed. We need to rewind. This is a rather complicated process. You need to disassemble the motor, remove the burned winding and clean the grooves from insulation. And then make everything in the reverse order. And to wind the coil, use a winding machine. In general, if you are a master in an electrician, then go. If not, bring to the service.

Often, when working, the user hears an unpleasant, cutting ear, and feels the smell of Gary. This is what we talked about at the very beginning of the article. the lack of oil in the mechanism. Check the probe: if the crankcase is full, then the conductive channels are polluted. Eliminate the malfunction is simple. pour oil or clean the furrows. Quite often, the tool begins to “bug” when stopping. Stops not immediately, but after a while. The longer I drank in use, the more this time interval becomes. To eliminate the problem, it is necessary to replace the brake tape. She simply worn out and stretched out. Sometimes during sawing, the device suddenly begins to vibrate strongly and lose power. The reason is already known to you. brushes have worn out. If you do not replace, then soon the saw will stop turning on. The chain does not rotate. There are several possible faults here:. the teeth of a plastic gear “licked”. It is part of the gearbox and the first takes on a blow in case of critical overload. And that’s great! It is better to replace the gear than to throw the burned motor or, worse, get an injury. When replacing it with worn with a new one, lubricate the gear with oil well wear of other details (leading stars, fist, springs, clutch, bearing cups). Having determined the erased or crushed part, replace it with the original spare part The tension of the chain is incorrectly adjusted. The situation arises both with key and non.cloth stretch. The operating instructions always describe how to pull the chain correctly and check its tension.

How to sharpen a chain yourself?

It’s hard to believe, but almost half of the breakdowns occurs due to a dumb chain. She pulls an increase in the load on the motor, its overheating and premature wear. With a stupid sawing tape, gear of the gearbox, leading asterisk, bearings, etc.D. The first sign of dulling is dark and small sawdust. The teeth cannot remove the desired layer, so the chips will grind. If you examine such a saw, you can see defects on the edge and even torn pieces. Masters advise to grind the saw as often as possible. If you tighten with this process, you will need to give the device to the workshop. Sharpening of files at home is possible on a special machine or manually. If you sharpen regularly, you can cope yourself by observing the rules:

• Sharpowing cannot be performed directly on the ground, since dirt can score grooves with butter.
• Use sharpening devices: files (circle and oval) mandrel and caliber.
• The angle of sharpening should be more than 30 degrees.
• The file should protrude slightly above the tooth.
• Torture teeth one at a time, scrolling the tape.
• Having sharpened the teeth using caliber, the cuts should be straightened (protrusions that are responsible for deepening during sawing).
• If the cuts are slightly protruding for a fishing line for a trimmer of teeth, then you can just cut them with a file.

As you can see, the elimination of problems is easy, and there is a complex. Remember that with proper operation and care, the needs for repair will occur much less often.

Chainsaw design and general classification of faults

It is correct to find the source of the malfunction, as well as to perform the correct and solid repair of the chainsaws, for this you need to have a reliable idea of ​​its technical specificity. Repair of such equipment is not particularly difficult. Its schematic device is quite simple. For convenience, the nodes in its composition can be divided into three types:

• The main and very important element, without which further work is impossible, is an engine, two.stroke, working on gasoline. The permissible brands of gasoline are indicated in the device passport itself;
• The second no less important component is its working part, which is responsible for the sawing of the materials themselves. This can be included in sawing mechanisms;
• The third connecting node includes a system of supply and filtering of fuel, oil, engine ignition, drainage of waste gases, etc.D.

Problems are classified by two nodes:

• The malfunction of the engine itself. Cannot start, for no reason stalls, excessively heats up, smokes very much, unstable works with a minimum and maximum load. Therefore, the repair must be carried out by these components.
• Problems in the periphery. Here you can identify many symptoms by which failures appear in its work. For example, in the case of a gaspecraft is drowned out during operation or loss of power, it is possible to block a gasoline-suction system or filter. If it saws poorly, then it may just swipe the chain. Repair should start with the study of auxiliary components, which will need to spend the least time and obscenity.

For convenience, before starting the repair, you should divide the chainsaw into sectors and look for a malfunction directly where the problem is supposed to be the presence. The leadership also gives a brief description of possible breakdowns and ways to eliminate them.

It should also be borne in mind that several factors can serve as sources for the same malfunction. Therefore, the ability to diagnose the cause of the breakdown is important in order to further carry out repairs correctly and efficiently. Before starting disassembling and repairing a chainsaw, you should figure out possible reasons and try to work only with them.

How to exclude possible risks of acquiring tire counterfeit?

The information field provides signs by which it is easy to distinguish the original brand chainsaw from the most reliable fake. As for tires, their advantages and disadvantages are manifested directly in operation.

In the domestic household appliances market, about 15% of the total sales of chainsaw components is an unknown origin of a third.rate counterfeit that produces a standard resource in the best case.

Operating a chainsaw complete with a fake tire and a chain is economically unprofitable and unsafe. A significant part of traumatic situations is created when using tire and chain falsifications.

You can buy a high.quality and durable proprietary tire of the desired model, without significant risks in a proprietary outlet or representative office of a licensed dealer company. In the absence of such an opportunity, you should take advantage of the services of a solid, who has earned the trust of buyers of the online store.

Read also: What is the multispage frequency

Diagnostic and repair algorithm

When starting the repair of a chain electric saw, it is necessary to conduct a sequential diagnosis of all unit nodes to clarify the cause of the breakdown. Repair of the unit is carried out based on signs of malfunctions that were listed above. Below is a power supply circuit, which depicts the internal device of the unit in detail.

Electric saw does not turn on

If when the start button is pressed, the unit does not turn on, then the diagnosis is carried out in the following order.

• Check the voltage in the outlet. It may not be due to the general shutdown or malfunction of the outlet. Try to include the unit in another place.
• If there is a voltage in the outlet, then it is worth checking the network cable. Remove the engine cover cover and call each wire with a tester, touching one probe to contact inside the unit, and the other to one of the rods of an electric fork.
• If everything is in order with the wire, then continue to check on. Call the wire tester going to the launch button for a cliff.
• Next, you should call the contacts of the buttons at the input and on its output when the key is pressed.
• After that, check the conductors going to the unit engine. If a smooth start module is in their way, then check the chain at the entrance and exit from it.

If the previous actions did not allow to identify the cause of the engine failure, then the brushes should be removed and checked. There are cases that the engine does not start due to the complete wear of one or both brushes, as well as due to a break in the conductors in them. If the brushes are serviceable, then most likely, the engine failed, namely, the pavers of the stator or rotor are burned out. In this case, in order to call the coils, you must have some skills and knowledge in this area. It is better to attribute the engine of the electric saw to a specialist who will find a malfunction and rewind the coils.

Brushes and collector burn

The appearance of severe sparking under the brushes can be caused by poor contact between the anchor lamels and electrodes due to the wear of the latter. To check this, it is necessary to extract details from the brush holders.

It is believed that the normal wear of the brushes should be no more than 2/3 of their initial length.

If the brushes are worn out, they must be replaced. Brushes can also spark due to clogging the gap between the lamellas of the anchor of graphite dust. Since graphite is a conductor, it causes a closure and appearance of sparks.

To eliminate pollution, it is necessary to clean the lamellas with alcohol, cotton and toothbrush well. It is also recommended to polish them with the smallest sandpaper (zero).

No lubrication on the chain and tire

The lack of lubrication on the tire or its complete absence can be caused by clogging of the hole or tube through which the oil is supplied to the tire. Often the chain is not lubricated if the supply of lubrication from the tank is disturbed. This can happen when clogging the filter installed at the end of the hose. The latter is always inside the container. To eliminate the malfunction, it is necessary to pull the hose from the oil tank and rinse the filter with gasoline.

The breakdown of the oil pump can also cause the oil does not enter the electric saw chain. After cleaning the filter, hose and holes for supplying lubrication, turn on the electric saw and observe whether the lubricant comes to the tire, provided that there is enough oil in the tank. If the lubricant does not arrive, it is necessary to remove and disassemble the oil pump, check the serviceability of the spring or its other parts (depends on the model of the unit) and, if necessary, replace it with a new.

The engine gets very hot

The reason for overheating of the engine may be the jamming of the gear of the gearbox if it is highly contaminated with small wood sawdust, or extraneous objects, for example, fragments of spring or plastic parts, have fallen on it. Try to scroll the gear shaft manually when the brake is turned off. If the rotation is difficult, then you will need to disassemble the gearbox and eliminate the malfunction.

Causing an overheating of the motor can also break off the engine windings. In this case, it will not work to repair the motor with your own hands. You will need to contact a specialist for help.

Also, the engine can overheat if the oil is not supplied to the saw chain. This leads to poor gluing equipment on the tire, and as a result, to an increased load on the electric motor. How to diagnose and eliminate this malfunction, it was described above.

The engine does not develop full power

First of all, it is necessary to check the voltage in the network. It can sometimes decrease and lead to a fall in the power of the unit. Also, the drop in power is caused by jaming the gearbox or wear of the brushes. How to eliminate these problems, it was considered above.

Causes similar symptoms and faulty start button. If a fault is detected when checking this part, then it will not work to repair it. The button must be replaced with a new. But if the audit of the above reasons did not give results, then it remains to suspect that the anchor was blocked or an interval circuit occurred in them.

The unit stops during operation

If the unit stops when working, then perhaps there was a complete wear of one or both brushes. This is checked quite simply: remove the brushes from the holders and check their length.

Sometimes brushes with a short conductor, located inside the clamping spring, come across. In appearance, such a brush will have a sufficient length of the electrode, but if you look closely at the spring, it will not be unclenched completely due to the short conductor.

Also, the unit can stop in the process of work if there are malfunctions in the gearbox. In this case, you will hear the buzz of the engine, which will not be able to rotate. Often the stop of the unit causes jamming of the end star located at the end of the tire, due to its clogging. The main task of the star is the movement of the chain around the top of the tire. As in the case of a breakdown of the gearbox, you will hear the engine buzz. You can check the jamming of the asterisk if, if the unit is turned off and the brake is squeezed out, try to hand out the chain manually: if it does not move, it means that it was jammed in the tire.

5 Rules for using the tool

Rule 1: Take care of sufficient voltage in the mains

The network to which the saw is connected should have stable indicators. If the voltage is reduced by 15. 20%, the load on the electric motor will increase. Therefore, the equipment will not be able to issue the declared capacity. Perhaps on small blanks you will not feel this. But when you have to saw hard wood or a large log, the load on the engine will increase significantly, and its power will not be enough. We also note that the motor can just burn out. To avoid such problems, for a network in which there are often voltage drops, it is recommended to use a stabilizer.

Rule 2: Perform the instrument check before starting work

Make sure that the saw set is fixed correctly, there is a lubricant in the oil tank and its lid is tightly closed. Check the serviceability of the cutting brake of the quapi, locking the start button, the lubricant supply system. If all components work as it should, proceed to sawing.

Rule 3: observe the technology of sawing

General requirements include reliable fixation of the workpiece and instrument without unnecessary pressure. The implementation of the transverse and longitudinal sawing varies significantly. With the end of logs, the toothed emphasis in the front of the case should touch the log. It will serve as a point of support and help to make a more even saw. The saw is raised by the rear handle and lead behind the front. If it is necessary to perform a second cut, the tool is pulled back, the toothed emphasis is installed a little deeper into the log and the rear hilt is raised again. the tire enters the material. Pull out the cutting part of wood in a working state. It is much more difficult to perform drunk along the log. this requires a special skill. The touch of the wood tire is avoided in order to eliminate the risk of discarding the tool. The angle between the working part and the log should be minimal. Tough stop is not used, and sawing is carried out by the lower part of the canvas.

Rule 4: Follow the lubrication and tension of the chain

As a rule, one lubricant is enough for 40. 50 minutes of work. Most of the models of electric saws apply it to the chain automatically. The chain tension is easily, without the use of additional tools. it is enough to twist the regulator on the case.

Rule 5: Do not overload the saw

The technique should be used for 15. 20 minutes. Then you should rest for her to rest so that the engine cools. The saw cycle, as a rule, is 40 seconds of work, 20 seconds of rest. Even if the tool is equipped with a thermal protection system, it should not be abused. when overheating, the saw will be disconnected, and productive work will still not work. It is better to put it aside and let the engine cool.

Tip: If you did not have to work with an electric saw, practice in sawing unnecessary wooden blanks. this will be easier for you to master the process.

Remember security!

Despite all the usefulness, the electric chain saw is a traumatic tool: it has a saw tire with an acute chain of 30. 40 cm long. It is terrible to imagine what will happen if such an instrument slides out of the hands or gets out of control. If you remember and observe important aspects of security, you can protect yourself and working people working nearby.

The use of personal protective equipment

To avoid injuries and diseases associated with the long.term work of the chain saw, use special equipment. During operation, the tool engine creates a noise, the level of which can reach 90. 100 dB. To protect hearing organs, use headphones. Gloves should be put on your hands to exclude random cuts. You may need a front shield or glasses to protect the face and eyes from flying sawdust. At the construction site for safety precautions, you need to work in a helmet. You can learn more about the choice of equipment from the article “Means of Protection of the Eye, SPU and head”.

Ensuring electrical safety

Like any power tool, chain saw should not be used during rain and in raw weather. Work should be avoided near flammable objects. It is recommended to connect equipment only to a grounded outlet and use an extension cord corresponding to the parameters specified by the manufacturer in the instructions. When moving with a tool, it is important to ensure that the cable does not bend, does not pull and does not cling to obstacles.

The correct position of the body

To reduce the risk of an accident when working with an electric saw, it is important to take a stable position: you should not climb into shaky supports, lean too much, cut above the shoulder level. Hold the tool tightly for special handles. the right hand wraps the rear hilt, the left. the front. This will ensure reliable retention of the saw and eliminate it out of the hands. When sawing wood, take such a position so that parts of the body are not in the field of saw saw.

On the danger of a reverse blow

Even if you follow all safety rules when working with the tool, do not forget about the risk of a reverse blow. It occurs when randomly touching the nose of the working part on wood or any solid objects. The saw gets out of control-it throws it towards the user. Of course, modern models are equipped with a brake of the chain, which works when touching a special shield with a hand. To exclude such probability completely, there are several simple rules.