Gasoline gasoline does not go back. The main malfunctions of gasoline and electric trimmers • CIMFLOK.COM

REPAIRS AND REPAIRS OF APPLICES

Lawn mowers are a convenient equipment that allows you to maintain in the country, in the garden, the park of herbal cover in a well.groomed state. Thanks to their use, lawns acquire an attractive appearance with minimal labor and time. Gasoline and electrical devices that have pushed to the background are popular with the popularity of mowers.

With proper operation, the equipment is capable of working for more than one year without breakdowns. But over time, the details wear out or an unforeseen accident may happen, as a result of which the unit will fail. If the equipment is not under warranty, then it is not necessary to contact the service center for help to specialists. Repair and maintenance of lawn mowers can be carried out at home. This is due to the fact that many malfunctions do not relate to serious breakdowns, they can be easily eliminated on their own.

The main malfunctions of electric and gasoline lawn mowers

Despite the variety of models and manufacturers of lawn mowers, gasoline and electric equipment has similar structural units. The difference lies in the types of installed engines and related systems for ensuring performance. Equipment malfunctions are conditionally divided into 2 groups:

Damage of the mechanical part of models with gasoline and electric motors is almost the same, but the refusal when operating the drive part of the lawn mower can be caused by problems with different details.

The design of the lawn mower

Now we will analyze the “anatomy” of this device. So, the gas mowing on a gasoline course is a four.wheeled device with a plastic or metal body in which the engine is enclosed. In simple and light models, he drives only cutting blades, so he has to roll a “four.wheeled friend” manually. However, it is not so difficult to move 12-15 kg from a place of 12-15 kg.

massive units are made by self.propelled. Their wheels rotate at the expense of the drive (chain or belt), and the user can only direct the lawn mower in the right direction. To make the work as comfortable as possible, manufacturers equip their models even with a speed switch (from 2.4 to 5 km/h).

As for the mowing process directly, almost all gasoline devices are rotary. The knives are installed in them parallel to the plane of the Earth, and during operation they create a strong air flow, which in turn draws out cut grass into the grass collector or throws it to the lawn, forward or to the side.

As we see, the device is quite simple. But, trying to raise the demand for their products, companies constantly add new options to them. It can be a special handle that reduces vibration, or a sensor that measures the height of the grass.

A separate mention is deserved by the mulching option that saves the summer resident from taking care of where to put mowed grass. To throw it away by waste, because this is a wonderful raw material for compost. But to rake the grass manually and attribute them to the composter tire. Why spend time and effort if the lawn mower can fertilize the soil on its own?

To transfer the unit to mulching mode, access to the grass collector is blocked. Small and crushed stems are poured onto the lawn, where they gradually decompose, turning into compost. But you should not get carried away in this way of fertilizer. Once a week enough. If you mulch the lawn more often, organic waste will accumulate on the lawn and damp, gradually turning it into a swamp. For the same reason, you can not work in mulching mode during protracted rains.

What to look for when choosing a gasoline lawn mower

The second parameter is the torque of the unit. The higher it is, the easier it will be to mow grass, especially thick and high. For the lawn on 1-6 acres, the torque should be about 6.1–9.83 h m. The maximum necessary for large land plots is 11.87 h m.

The body (deck) of the device is of great importance. It should be durable, since during the operation of the lawnmand of the blade, small pebbles and other hard garbage throw it on it. In the simplest, budget models of deck made of cheap thin plastic. Obviously, such a product will not last long. The metal case is much more durable, but it cannot be called impeccable. The paintwork, which is protected by the inner surface, abrasion over time, and under the influence of moisture (juice of grass), deck gradually rust.

The thermoplasty houses show themselves well. durable, reliable, not prone to chips. Multilayer plastic has established itself even better, which resembles Sandwich on the cut. As practice shows, it perfectly resists wear.

note! Starting from the end of July, many large produce and suppliers make significant discounts on the lawnmands, so the end of summer is considered the most profitable for buying garden equipment

Another important element of the lawn mower is a grass collector, the volume of which varies from 16 to 90 liters. It can be soft (durable waterproof bag), or hard (plastic box). The second option is preferable, since the product with smooth, solid walls is easy to empty and wash.

The method of launching matters. As mentioned above, in order to give the unit the action, you need to pull the starter cord. But there are models in which the engine is launched by pressing a button or turning the key. The electronic ignition system is powered by batteries. Lawn mowers with a hybrid system are also developed, where the launch can be carried out either using the/key button and using the cord. This can be very useful if one of the mechanisms fails.

The wider and larger the diameter of the wheel of the lawn mower, the easier it is to roll it around the site. Another plus of wide tires is that they do not leave traces on the lawn

How to make repair of the lawn mower with your own hands?

Those who have land are very familiar with what struggle is weed.

Especially when it often rains and the grass grows not by the day, but by the hour. Earlier, and sometimes even now, this issue was resolved with the help of a good old braid for grass.

But technologies are not standing still and now in this case, assistants such as electric and gasoline lawn mowers help.

The gasoline mower has several significant advantages over electric, such as mobility and lack of danger of electric shock. But there are many drawbacks, for example: high price, a lot of noise, expensive fuel and significant weight.

Electric mowers are cheaper, easier, work on inexpensive energy, and are not difficult to maintain and repair. These advantages become the main reason for their great popularity among buyers of this type of technique.

But despite the pretty good quality, improper operation and a lot of load, they can disable the device. In such cases, you should not immediately carry the device to the repair shop, but try to find and eliminate the cause of the breakdown yourself. over, as mentioned above, electric lawnmands do not have as many nodes and details as gasoline.

The main thing is to have some tools and faith in yourself. In this article, I will just show you how I did my own repair.

AL-KO, the lawn mower of the company, has serious problems in work, namely: the engine stop without load and its strong overheating, was taken as an example. The motor stops, buzzes and start it again, only repeated pressing the Start button helps. The button has to restart almost every 30 seconds, and with further work and more often.

gasoline, does, back, main, malfunctions, electric

Of course, you can work, but it is very annoying and gives the feeling that somewhere the problem is. Therefore, I wanted to figure out where?

After the mower was working within an hour, the engine temperature was measured. It was impossible to touch him with a finger. He directly radiated heat. If you continue to pay attention and continue to work on such a mower, an electric motor will inevitably fail.

It is necessary to determine the cause of the motor overheating. To do this, remove the top cover of the case, under which the engine is located and its power chains.

The lid is held on six screws with a hat under a cross screwdriver.

Unscrew these screws and remove the lid. upward.

Having removed it, you can see the impeller, the capacitor, two connectors and the engine itself.

At first glance, no special problems are invisible. The engine winding darkened slightly from the temperature, but so far it is not critical.

To more carefully inspect the capacitor, it is necessary to unscrew the mount and pull it out.

The capacitor of some external damage did not show.

To check it, you need to disconnect the capacitor and feed the engine for a short time. If he did not start and began to buzz, then the capacitor is intact, because the engine was launched with him. Disconnect the power and connect the container connector back to the engine circuit.

Next, try to twist the impeller. It is mounted on the axis of the rotor and rotates rather tight.

And the reason for such severe rotation is a mechanical brake, which for safety stops the engine rotation when the power is turned off.

It looks like a sleeve that moves freely from top to bottom, along the rotor axis.

Когда напряжение на двигатель не подано, эта втулка прижимается верхней частью о крышку, на которой приклеено две резиновые полосы. Thus, the knife is inhibited on the rotor shaft.

When feeding, the brake sleeve under the influence of the magnetic field is drawn to the center of the rotor and provides free move.

With a careful examination, this sleeve with the brake noticed that at the time of turning on the engine, the brake is retracted and gives the shaft free rotation, but after 2-3 seconds it is released again and begins to slow down the motor. This should not be. Hence the stop of the knife during operation and overheating of the engine.

To find out what is the reason for this work, you need to remove and disassemble the engine.

To do this, disconnect the connectors and put the device on the side to get to the clamping screws. Access to them closes a knife with mounting elements.

To remove it, first you need to unscrew the knife bolt (cm. Figure below).

Direction of rotation, like a regular bolt, and not with left thread. That is, unscrew it counterclockwise, and tighten the clock.

The head of the bolt is plastic, so using the key, it must be well planted so as not to “lick” the edge.

After extracting the bolt, the knife and its plastic disk are removed.

Under it is a height sleeve. With its help, you can slightly lower the knife.

Adjustment is carried out by the washers put under the sleeve (see. drawings below).

We remove everything, only the engine shaft and the hexagonal screws of its fasteners remain.

The key for these bolts has a distance between faces of 6 mm. Unscrew them counterclockwise. Removing the last screw, with one hand, hold the engine.

Next, put the mower on the wheels, and clasping the engine with our hands. we raise it.

To disassemble the motor, you need to free tightening studs. We unscrew them all.

Remove the impeller with two screwdrivers.

We proceed to the removal of the back cover. A wooden block and a hammer will help this.

But first you need to mark the position of the covers with something sharp to the engine body.

Put the engine on the side and hit with a hammer, through a wooden gasket, on the rear shaft.

The motor at that moment should hold another person.

We hit until the axis comes out of the bearing to the end.

Poster ignition control

This operation can only help if the engine does not work. If you do not know how to adjust the ignition of a mowing, act as follows:

Remove the engine casing by unscrewing all the screws attaching it.
Slightly loosen the screws on the magnet.
Turn the flywheel so that the magnet is on top.
Insert the business card between the coil and the magnet. You can also use a piece of paper folded in half. this will help determine the optimal distance between two elements.
Holding the magnet, tighten the unscrewed screws. Remove the inserted page or business card. Now you know how to set up a span ignition!

Other frequent damage to the lawn mower

If you have not solved any of the above problems, you should look for other solutions, trying to find other damage to your lawn mower.

First, make sure you do everything right.
Make sure that the spark plug connect the spark plug is correctly, and that the spark plugs do not need to be cleaned or replaced.
Make sure the cylinder and air filter are not in oil.
Pull the ignition handle and make sure that the cable will be fully extended to the switch. if necessary, tighten even more.

If after all these steps you were not able to start the engine, the problem may be associated with a carburetor or automatic throttling system. and in this case you will not be able to carry out a serious repair of the lawn mower.

When the lawn mower does not start

Depending on the area of the lawn and the growth of grass on it, the owners choose the optimal technique in characteristics. It is several types:

Also, the restoration of lawn mowers with your own hands will be required if the conditions of winter storage are inappropriate. For example, after use, there were no cleaning surfaces or there was no off.season preventive maintenance. As a result, various problems are manifested:

frequent sharpening of the lamp of the lawn mower is required;
just does not start a lawn mower;
The motor starts up, but through a short gap the lawn mower stalls;
malfunctions of the carburetor appear, which requires not only disassembly, but also cleaning with repair;
Do.it.yourself renovation of the lawn mower is required with a significant reduction in power during operation.

You should not go to an expensive service center. Many problems can be solved with minimal costs and repairs on your own.

After each use of the tool, it is necessary to clean the cutting elements. Change the oil regularly and perform a minimum risk.

Problems with the mechanical part

The mechanical system in lawn mowers with different drives consists of the following structural elements and nodes:

knife (rotary or cylindrical type) or fishing line;
transmission mechanism;
grass collector and grass emission devices;
wheels, handles and housings.

The failure of the cutting element

The most commonly damaged (for example, bend) or knives are blunt, the fishing line for the trimmer ends. This is easily detected with a simple visual inspection.

The fact that the cutting nozzles have become swept away is evidenced by uneven cutting of herbal stems when the lawn mowed.

Over time, knife fastening can weaken. Their balancing during rotation is disturbed, and vibration, whistle, rattling appear. If the knives are damaged, then during operation the mechanism will begin to perform unguided, sudden, sudden movements. To eliminate the malfunctions of this kind, the cutting elements are set to the right position, replaced with new ones or repaired. If possible, then the blades are pulled again.

Gasoline (feat. Sixthells)

Sounds and vibration during work

Uncharacteristic sounds, vibration, rattling appear during the operation of the unit, when the fasteners of its structural elements are weakened: body, engine. These phenomena are more often found in gasoline models, because their motor fluctuates more strongly than the electric motor. To eliminate these phenomena, check all the connections, pulling up the bolts if necessary. It happens that the whistle during the operation of the unit arises due to the entry into an outsider that blocks the video in the aerator. In this case, it is enough just to get it so that the sound stops.

Cutting nozzles do not rotate

Often, when mowing a high herbal cover or hard herbal, cutting nozzles cease to rotate due to grass clogging. This problem in most cases (if it has not led to more significant negative consequences) is easy to solve with your own hands, just picking out a stick with a stick.

Damage to constructive details

Damage to the wheels, handles and housing rarely happen. If they are significant, then they change these structural elements. Methods of repair, with its possibility, in each case, depend on the material of broken parts. they can be plastic, aluminum, steel.

Brand break

With prolonged operation, the mower wear out, stretches, and then the belt breaks off. At the same time, the device’s gasoline engine works, but the knives do not rotate. Self.propelled models can also break off the wheel drive belt: then they stop and do not go. Sometimes the clutch cable simply stretches and it needs to be adjusted.

Possible causes of malfunctioning in electric braids

When operating a trimmer for the grass on which an electric engine is installed, there are also problems with a speed set. But they are called by completely different problems compared to fuel braids. The electric motor does not develop the required rotation speed in such cases:

if the voltage operating in the supply network is below the nominal value for an electric motor by more than 10 %;
in case of problems in the system of smooth start (if this unit is installed);
when there are problems with the brush knot;

To exclude the problem with the voltage, it is required to check its size in the outlet with a multimeter or tester, from which power.cocked power is taken. If it is less than the minimum acceptable value, then to increase it will need to turn off all electrical appliances or install a stabilizer.

A prerequisite necessary for the normal operation of a trimmer for grass is the use of an extension cord with a section of cores corresponding to the power of the braid engine for grass.

To repair the unit unit, you will need to have appropriate knowledge in electronics, so it is better to contact the service center. There will be determined with its maintainability or the need to replace. You can check the button on your own or find the block diagram and try to figure it out.

Brushes can be worn out, as a result, contact will disappear, which leads to stopping the electric motor. The brushes are easy to replace. Features of the process are determined by the Motokosa model used by the model. Along the way, you will also need to clean all contacting surfaces.

In the case of burning windings, if you continue to mow grass or shrub, the electric motor will quickly burn. This will be accompanied by the appearance of the smell of Gary, up to the melting of individual details. You need to replace the electric motor.

Braining rotating parts occurs for various reasons. To identify and eliminate them, you will need to sort out the drive knot. There are models in which the number of revolutions is automatically adjusted depending on the load, increasing when it increases. they idle speed drop.

The video shows an algorithm of actions to identify the most common reasons why a trimmer for grass does not gain the required speed:

The market presents a wide selection of trimmers from various manufacturers. They are characterized by general reasons why the moment. Also, each unit is equipped with operating instructions. In it, the corresponding section contains the necessary recommendations on this issue regarding the applied model.

If, in the process of independently eliminating problems, it was not possible to achieve a positive result, then it is better to seek help from specialists. It should also be involved in solving the problem of professionals in the absence of minimum experience and skills in such a case as not to harm. The most difficult node is the engine. Only experienced masters are permissible to work with him. When the lawn mower is under warranty service, the best option is to contact the service center where they will diagnose and repair technology.

Why is the gasoline trimmer not starting for the grass

The reasons why the gasoline trimmer for the grass stopped starting is different, therefore, a phased diagnosis of the apparatus is required.

Fuel tank (fuel quality)

Remember that always before starting the unit, a check of the presence and quality of fuel is required. In this case, you should not be greedy and save, as well as “clever” about the amount of oil added. Everything must be done according to the management attached to the apparatus, since when the piston group fails, its replacement will cost about 70% of the total cost of the trimmer for the grass. Pour fuel due to the fact that you will fully conside it when performing work. After a while, the gasoline remaining in the tank loses its properties and can harm the engine. Therefore, do not prepare the mixture for the future and in large quantities. If the lawn mower starts poorly, try to drain the “old” fuel from the tank, and season it with a freshly prepared mixture.

Important! To refuel the device with fuel, the origin of which is unknown, fraught with negative consequences. Gasoline should be of high quality, bought at a gas station, and its brand should be not lower than AI-95.

Candle and candle channel

So, you changed the fuel, but nothing has changed, and the trimmer for the grass still does not start. In this case, it is worth checking the candle channel: whether it throws it with a combustible mixture. Often users transfer the air damper to the “OFF” position when starting, and when the engine started, they do not transfer it to the “ON” position, after which it stalls. Further, an attempt to start the internal combustion engine to again leads to the fact that it floods the candle with gasoline, and the start becomes impossible. To diagnose and eliminate the possible problem in this node, do the following.

It is necessary to unscrew the spark plug, wipe it well and dry it. When installing a candle in the ICE cylinder, it should be dry.
Draw from the combustion chamber the fuel accumulated there. This is done through the hole from which you twisted the candle.
In the presence of soot on the electrodes of the candle, it must be removed either with a thin file or a nail file.
Do not forget to put the gap between its electrodes before installing the parts in place. The gap on the candle should be 1 mm. As a probe to check the gap, you can use a coin.
Next, collect the block, read the start instructions and try to start the engine again.

If the engine does not start, then you will need to check the spark. For this:

unscrew the candle;
put on it a cap of a high.voltage wire;
Touch its metal part to the cylinder body (to provide contact, you can insert a tubular key) as shown in the figure below;
pull the launch cord so that several engine speeds occur.

Normally, with each piston roll between the electrodes, the candle should slip a spark. If there is a spark, then the reason that the internal combustion engine is not launched should be sought in other nodes of the device.

For a better understanding of the process, how to test the candle for the presence of a spark, you can use this video where the check is shown by the example of the Lawn Mushiel “Soyuz”.

If there is no spark, then in the beginning check the cable connecting the candle to the coil. perhaps the reason is in it. You can call it with a tester. In case of detection of the rupture of the chain, a high.voltage wire will require a replacement.

Also the reason that the spark has disappeared is a malfunction of the ignition coil (magneto). The figure below shows what the coil (magneto) looks like from the gasoline trimmer for Patriot grass (Patriot).

To exclude the malfunction, it will be necessary to use a tester to check the Magneto trimmer for the grass, namely, its primary and secondary winding. On the primary winding, the resistance should be in the range from 0.4 to 2.0 Ohms. If the device shows 0. this means that there is a short circuit in the winding, and if infinity is a clear sign of a chain break. The resistance on the secondary winding should be in the range from 6 to 8 kOhm.

On some coils, it can reach the value of 15 kOhm.

Air filter

If your lawn mower does not start well or stalls immediately after starting, you should pay attention to the air filter, since it can be clogged, as a result of which the air does not enter the combustion chamber, and fuel ignition does not occur. To check if the filter is the case, remove it and try to start the engine. If he earned, then the reason was found. The filter needs to be replaced or rinse well and dry before installation. In the case when you find the oil in an air filter, it must be washed with gasoline, squeezed well and dry at least 2 hours before installing in place.

If the unit does not start with an air filter, it is still recommended to check the fuel filter.

Fuel filter

This filter cleans fuel of possible pollution. If it is scored, then gasoline does not enter the cylinder, and, accordingly, the unit does not work or stalls after starting. The fuel filter is located at the end of the fence hose, which is located inside the fuel tank. To get to the filter, it is necessary to extract a cork with tubes emerging from it.

When extracting traffic jams, a fence hose can disconnect and stay in a tank. It is extracted with a tweezer.

Next, remove the old fuel filter from the hose and put on it a new, pre.acquired. You can also clean the fuel filter if you do not have new. The filter must be fixed on the hose using a spring latch.

Ryobi trimmer starts but doesn’t rev up when squeezing trigger

Install the fence tube on the cork and insert the last into the tank.

Electric trimmer for grass vibrates

Many mowing users noticed that some time after the start of the apparatus, it begins to vibrate very much. On some trimmers, mainly in models more expensive, an anti.vibration system was installed in the form of shock absorbers seized between the engine and the bar. But in some cases, even she does not save from strong vibration. The reason that strong vibration appears in the trimmer, there may be a small amount or complete absence of lubrication on a hard or flexible shaft located inside the rod of the apparatus.

Replacing the lubrication of the hard shaft is as follows:

Apply a small amount of lubrication to the shaft and evenly smear it along the entire length of the part, including the slots at the ends of the rod (if they worked, the shaft will have to be replaced);
After lubrication, insert the shaft back into the bar and put the gearbox in the same place.

The lubrication of the flexible shaft is as follows:

unscrew and remove the mowing head;
remove the bar from the electric motor by unscrewing a couple of bolts;
Pull out a flexible cable from the bar;
Lubricate the cable with grease along the entire length.

This is done like this: first you need to lubricate the end of the cable, and then insert it into the bar, after which, as it moves into the pipe, you should apply grease to the part and evenly distribute it on the surface. Then insert a bar with a flexible shaft into an electric engine and fix it.

In the event that the lubricant did not help, and the vibration continues to appear, you will need to change the flexible shaft.

When the lawn mower does not start

Depending on the area of the lawn and the growth of grass on it, the owners choose the optimal technique in characteristics. It is several types:

The average mower stands in the climatic conditions of St. Petersburg, or similar regions about four seasons. expensive or less operated garden assistants are able to withstand in the field of 5-6 seasons.

frequent sharpening of the lamp of the lawn mower is required;
just does not start a lawn mower;
The motor starts up, but through a short gap the lawn mower stalls;
malfunctions of the carburetor appear, which requires not only disassembly, but also cleaning with repair;
Do.it.yourself renovation of the lawn mower is required with a significant reduction in power during operation.

You should not go to an expensive service center. Many problems can be solved with minimal costs and repairs on your own.

After each use of the tool, it is necessary to clean the cutting elements. Change the oil regularly and perform a minimum risk.

Restoring the performance of electrical equipment

Mowers, inside of which electric motors are located, most often begin to be capricious due to oxidation of contacts. The terminals are covered with a layer of scale from excess humidity in the room or in another place of storage. It is also worth checking the absence of a break in wires in problem areas. For this operation, a multimeter or other tester type is used.

When a set of garden equipment contains a brush engine, we identify the performance. Brushes can wear out quickly, leading to a lack of contact. The reptity of them costs relatively little, and it is easy to find it in specialized stores, where they sell spare parts for such a technique.

Asynchronous engines are also in wait for the malfunctions. They refuse phase.drive capacitors. A similar situation is diagnosed at home is problematic. It can be detected by indirect symptoms:

The sound of a buzz is heard;
When starting, the case twitches slightly;
significant heating of the motor occurs even at a slight load;
Reduces are reduced.

It is worth diagnosing the condition on the tolerance/button and the voltage supply to the electric motor. Когда проведено тестирование описанных узлов, а нарушений в работоспособности не обнаружено, то вряд ли удастся исправить поломку газонокосилки своими руками. Then you will have to use the services of the corporate service.

The lawn mower does not collect grass

The reason for this may be faulty or stupid knives. In order to avoid such a situation, you need to install new knives every season. You can do with the sharpening of knives at an angle of 30 °.

When hidden, it is necessary to protect yourself with special glasses and protective gloves. After sharpening, you need to test the balancing of the knives.

If a cylindrical mower does not collect grass, then it is better to sharpen knives in the service center. But you can purchase a sharpening device in the store and sharpen yourself, as shown in the video. To do this, you need to bring the cylinder of the turned off the braid to the position with the maximum interval between the blades. Then the abrasive strip is glued to the sharpening device, and the cylinder is transferred to the position in which the blades relate to the abrasive. The mitch needs to be turned on for short intervals of time until the blades become sharp.

The knives are incorrectly adjusted

This can be seen on the uneven surface of the lawn. Before adjustment, it is necessary to turn off the lawn mower from the network and put on protective gloves.

The gap between the cylinder and knives should be uniform in all areas and not exceed the thickness of the office paper sheet. Even to regulate the gaps, the same paper is used. It is inserted between the cylinder and the knife, after which the drum rotates. It is necessary to adjust the knives until the paper is cut smoothly anywhere in the knife.

Let’s summarize

Having familiarized yourself with the information, we can conclude that with proper work with garden equipment and timely maintenance, most problems can be avoided. If the nuisance has nevertheless happened and the lawn mower does not work at full capacity, you can try to eliminate the breakdown on your own or contact the service center.