Do-it-yourself lawn mower repair: the main causes of problems and their elimination. Why does the lawnmower stall? Lawn mower starts and immediately stalls

A reliable and simple tool for cutting grass on a garden plot - a lawn mower, is extremely in demand. However, it may break. Repair required. As a rule, the repair of electric lawn mowers is carried out in service centers.

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In order not to transport a sufficiently voluminous apparatus to the workshop, a number of malfunctions can be eliminated with your own hands.

Why won't lawn mowers start?

To answer the question, you need to understand that all breakdowns are divided into mechanical and electrical. The first ones include faults:

knives;
wheels;
handles;
corps.

To the second - everything related to the engine, whether it is electric or gasoline.

It is not difficult to repair blunt knives on your own, since they are removable and you can sharpen them with ordinary emery, maintaining a sharpening angle of 30 degrees. In case of malfunctions of other parts, i.e. body, wheels, handles, they will also need repair or replacement.

In battery devices, battery failure is added to this problem. It is more difficult to cope with the repair of a lawn mower equipped with a motor, i.e. petrol and electric lawn mowers.

In the first case, the problem of overheating and overload, as well as malfunctions in the oil and fuel supply chain, are added to possible breakdowns. An electrical breakdown can also be caused by overheating or overload, since not all models are equipped with protection.

Overheating is caused by running the unit for a long time with the air filter in poor condition, making it difficult for sufficient air to pass through.

You will have to cool the electric motor by disconnecting it from the power supply and replace the filter. In the future, in order to avoid repairs to the electrical apparatus, it must be cleaned at least once every three months.

The appearance of extraneous noise or smell indicates that the electric lawn mower needs repair. Not everyone will do it with their own hands, because the drive will need to be replaced.

Electric lawn mower does not start or stalls

Sooner or later, many are faced with the failure of the lawn mower. This happens, as a rule, after 3-4 years of active operation or after the device was stored in an unheated room in the winter.

The lawn mower is out of order if:

does not start;
lawn mower stalls shortly after starting;
the engine does not run at full power or intermittently

Engine problems arise over time for all devices, regardless of whether a simple “Chinese” or an expensive “Japanese” is on it. The moment is unpleasant, but you should not be upset, just as you do not need to rush to the service center. You can try to repair it yourself.

How to identify the cause of the breakdown?

It is necessary to start repairs, guided by the principle “from simple to complex”, i.e. it is recommended to start the repair by checking the presence of gasoline in the tank. If the gasoline machine stopped starting after wintering, the fuel should be replaced.

After all, fuel, unfortunately, is not always of decent quality. Therefore, during prolonged inactivity of the device, it may delaminate or form a precipitate. And engines are sometimes very sensitive to the quality of fuel.

If there is no doubt as to the latter, but the mower does not start, it is necessary to check the spark by removing the wire with the cap from the candle, unscrewing it using the key supplied in the kit.

Attach a candle to a clean metal surface (without paint) of the engine, having previously put a cap on it, and asking someone to pull the starter.

If no blue spark appears, the spark plug needs to be replaced.

If an unstable and weak spark appears, the candle will need to be cleaned with a needle file or sandpaper.

They also change it if black soot is found on the surface, regardless of whether it was formed due to poor fuel quality or an incorrectly tuned carburetor.

Another problem that is easy to fix is a clogged fuel hose. Check this by disconnecting it: if the fuel does not flow, then the filter or saloon is clogged. The filter will have to be replaced, the saloon can be cleaned with a needle.

Well, if after that the mower will work. However, the cause of the malfunction in 90% of cases lies elsewhere - the failure of the carburetor, which will require repair. It is possible to cope with the repair, having enough experience. In its absence, the help of a service center will be required.

How to clean a carburetor?

You should start by checking that there are no open sources of fire nearby. Repairs must not be carried out indoors. This is fraught with leakage of gasoline.

Use a flat screwdriver to unscrew the screws to remove the plastic casing of the air filter from the motor. The removed filter is checked for clogging, cleaned with a vacuum cleaner or replaced with a new one (if the condition is unsatisfactory).

You also need to remove the inner filter cover, which is located under the casing. This, by unscrewing the bolts, is easier to do with a spanner wrench. An air hose is attached to its inner side, which will also have to be removed.

Finally, we got to the carburetor of a device that can be dismantled. Having disconnected the fuel hose going to it from the tank, i.e. removing the clamp, turn the hose, trying to remove it from the nozzle. You need to do the job carefully. After all, if there is fuel in the tank, it will definitely spill.

The carburetor is attached to the engine with two bolts, which require a socket head to unscrew. When unscrewing the second bolt, try not to drop the carburetor so as not to damage the spring suspension.

The next step is to remove the return spring. It is more convenient to carry out the operation from the side where it is attached to the motor. Now you can remove the throttle cable by gently turning the carburetor counterclockwise.

After removing the carburetor, unscrew the bolt securing the fuel chamber cover.

Cleaning is done with a special liquid or WD-40 and a copper wire from which the insulation has been removed.

Finally, you can remove the plastic float under the chamber cover that regulates the level of gasoline, for which the pin is first removed.

The camera must be cleaned of plaque. The insides of the carburetor are abundantly moistened with WD-40 (or equivalent), wiped dry. After repeating the operations several times, they clean the copper core fuel channels, purge them, since their pollution is the main reason why the engine stalls or does not start.

After completing all the steps described, assemble the carburetor in the reverse order.

After installing it in place, connecting the hose, air is expelled from the fuel chamber. This completes the repair.

After the described manipulations, the equipment will start easily and work stably.

Malfunctions of electric lawn mowers

If the electric mower is silent, the cause may be a power outage and a broken cord. To check if there is current in the network, use another electrical device plugged into the outlet. The cord must be inspected and replaced if a break is detected. Disconnect it with a hexagon, and check for an open with a multimeter.

As is the case with petrol lawnmowers, overheating and overloading (blocking the element with a foreign object) can cause an inoperative electric motor. The troubleshooting procedure is the same as described above.

Electric Mower Fault Repair

Jamming of the knives can be caused by long grass wrapped around them. To repair, you need to disconnect the device from the network and twist the cylinder in the opposite direction.

If the electrical device is silent, the drive belt needs to be repaired as a result of wear and tear: it can be stretched or broken. This means that you can not do without replacement, for which you need to remove the protective cover.

The new belt is first installed on the small gear of the electric apparatus, then put on the large pulley, and turning it.

To replace the power cable of this electrical device, it is necessary to de-energize the device and unscrew the cover.

To disconnect the cord, insert a hex wrench into the hole with the wires, releasing the clamp.

Install the new power cord in reverse order.

The reason may also be in a faulty power switch, which is simply replaced with a new one.

Repairing an unexpectedly stopped electric motor

If the engine was running, but suddenly stalled, you need to check the crankshaft and piston - perhaps they are stuck. This happens due to the lack of oil in the crankcase. With this breakdown, it is better to contact specialists, as in the case when the lawn mower electric motor needs repair.

Video: Lawn mower repair

Preventive work

For trouble-free operation of the lawn mower, the owner must carry out its regular maintenance after the end of the working season, i.e. prior to winter storage. It will cost less than repairing or buying a new electrical device.

Keeping your mower clean is one of the most important things to keep your electric mower running smoothly. Grass that has accumulated under the deck causes erosion of the metal parts. A compressor or blower will help remove the remains of mowed weeds.

The mower's electric motor is air-cooled, so it also needs to be kept clean, which is the key to efficient operation. Suitable for cleaning the cooling fins with a soft brush and compressed air.

Timely oil changes, as indicated in the user manual, will be the key to long trouble-free operation, as well as periodic cleaning of the air filter.

With some experience, it is easy to repair lawn mowers with your own hands. The video below will help you with this.

Video: How to repair a lawn mower engine

Where can I get my lawn mower repaired?

If the owner of the electric mower does not have sufficient knowledge, service centers will help to repair your favorite equipment, which allows you to keep the area around the house in proper shape, You can find out more about them on the websites:

http://remontbenzogeneratora.com.ua/services/remont-kos/Remont-gazonokosilok/ (Kyiv). Repairs are carried out by highly qualified specialists, both at the location of the center and at the customer's home. Departure of the master in the city is free. They work with equipment of all manufacturers, use high-quality spare parts. And get the whole range of services offered at affordable prices;
Even high-quality and expensive models have an unpleasant habit of breaking. In order not to spend money on the purchase of a new lawn mower, it needs periodic service maintenance, which the Repair of Everything company will help to carry out in a quality manner ( http://remontvsego.com/teh/sad/gazon/ ). The cost of repair depends on the breakdown and ranges from 150 UAH. Departure of the master in the city is free, in the region (for a distance of up to 50 km one way) - 8 UAH per km. Replacing the motor will cost 250 UAH. ;
"Master Engineering" is another service center in Kyiv, where lawn mowers are repaired efficiently and quickly ( http://www.masterengine.com.ua/ru/remont.html/ ;
From 100 UAH prompt repairs in Kyiv in the company will cost, you can learn more about it on the website http://kiev.prom.ua/p82660097-remont-dvigatelej-briggs.html?utm_campaign=%2528portal%2529%2520%25D0%25A0%25D0%25B5%25D0%25BC%25D0%25BE%25D0%25BD%25D1 %2582%2520;
From 50 UAH — http://kiev.prom.ua/p239905849-remont-gazonokosilok.html ;
From 130 UAH. - (Kharkiv);
Any problem will be eliminated in Minsk by specialists of companies, a large list of which is given on the website http://allservice.by/companies/dacha/Remont_gazonokosilok/ .
They will provide qualified assistance at the address http://allservice.by/companies/service_avtomobilei/1151.html/ ;
Repairs can be done at affordable prices here. http://allservice.by/companies/remont_oborudovanie_intsrumenta/275.html/ ;
In Moscow, the repair of garden equipment is carried out by the Yugo-Vostok Workshop 9 http://remont4tehniki.ru/ ), where lawn mowers from brands such as Gardeha-Gardena, Husqvarna-Husqvarna, Viking and many others will be brought back to life. Repair times are minimal, and the cost is determined upon inspection.
Employees of the company "Abris" () after an accurate diagnosis will perform work of any complexity - from changing the oil to repairing the engine. It will be required to lay out for repair work: for diagnostics - 1200 rubles, adjustment and cleaning of the carburetor - 770, replacement of the candle and air filter - 120 and 240 rubles, respectively; replacement of the gas and stroke cable, flywheel keys and itself - 400 rubles each. etc. http://www.remsad.ru/remont-gazonokosilok-i-benzokos/ );
Moscow ( http://technoded.ru/servis/remont-gazonokosilok/ );
More than 100 companies whose addresses can be found on this site offer their services for the repair of lawn mowers. http://prom.ua/Remont-gazonokosilok.html?no_redirect=1/ .

Video: Lawn mower repair

Repair of lawn mowers is carried out taking into account the principle of operation and the cause of the breakdown of the unit. More often the device fails in 3-4 years after active operation.

Lawn mower repair is necessary in the following cases:

the device does not start;
the unit quickly stalls after starting;
the motor is not running at full power.

Causes of the malfunction

Causes of lawn mower failure:

mechanical;
electrical.

In the first case, you will need to replace the body, handles, blades and wheels for lawn mowers. When the blades are blocked, the machine stops mechanically. Such a breakdown is associated with an attempt to mow hard or tall grass. Mower repair consists in releasing the cylinder from stuck grass and scrolling it in the other direction.

If the mower is operated with a dull or damaged blade, the lawn will cut unevenly. In this case, the device may vibrate or stop abruptly.

In order for the device to work properly, it is recommended to sharpen the knives with a file (angle of 30 °). Otherwise, an abrasive belt is used. The gap should be between the 2 blades, touching the strip. The device turns on periodically (for 15 seconds). If the knives are sharp, then the strip is removed, the gap is adjusted.

It is preliminary recommended to study the instructions for the device, remove the plug from the socket. When the connection is loose, a whistle appears. The device vibrates and rattles. Repairing a lawnmower means adjusting the bolted connections.

If the belt is broken or stretched, then it must be replaced. To do this, loosen the screws. Then the pulley moves, the belt is dismantled. The new part is put on a small and then a large pulley. The gear returns to its original position. The next step is to check the tension of the new belt. The deflection must not exceed 4 mm.

Malfunction of electrical models

The reasons for the unexpected shutdown of the electric lawn mower are related to a broken cord or lack of current. In the first case, it is recommended to check the cable for a break. To replace the power cord, you will need to unplug the power cord, open and remove the switch cover.

Before unscrewing the cable clamp? it is necessary to remember the scheme of its connection to the switch. To disconnect the cord, a hexagon (diameter 1 mm) is used. The clamp is released, the conductors are dismantled. A multimeter is used to test the cable for breakage. If necessary, install a new cord. In this case, the reverse sequence is followed.

In the second case, it is recommended to connect another device to the mains. Electrical appliances may not work if the fuse in the plug is damaged. To carry out repairs, you will need to disassemble the plug. For this, a screwdriver and a tester are used.

Motor problems occur when the mower overheats:

as a result of long work;
due to overload (the cutting element is blocked by some object).

A dirty device does not pass air well, which contributes to the shutdown of the device. Experts advise cleaning and changing the filter once every 3 months (with constant use of the lawn mower).

If the electric motor breaks down, a corresponding smell and noise will appear. In this case, the drive will need to be replaced.

Motor failure

The design of a gasoline lawn mower, unlike an electric counterpart, is more complicated. In some cases, the unit cannot be repaired.

If the engine does not start or immediately stops, then it is recommended to check the ignition. To do this, you need to dismantle the candle.

A dry plug indicates problems in the supply system, while a wet one indicates a carburetor. In such cases, repairs are carried out by professionals.

If there is black soot on the candle, then it is replaced. This does not take into account the cause of the breakdown of the lawn mower (carburetor setting, low-quality fuel). Often in gasoline models, the fuel hose is clogged. If gasoline does not flow, then the saloon is cleaned with a needle, and the fuel filter is replaced with a new one.

If the lawn mower does not mow the grass, then check the blades. If necessary, they are replaced with new cutting elements or sharpened on emery. In the second case, it is recommended to use goggles and thick gloves. You can sharpen the mower blades using the special tools included with the machine.

If the blades are blocked by long grass, then it is recommended to turn off the mower. The cylinder is scrolled with a wooden stick (in the other direction) until it rotates freely. If the lawnmower does not work as a result of a switch failure, then it is recommended that it be checked and replaced with a working analogue.

If there is no voltage in the outlet, the shield is checked. Some devices are equipped with thermal protection. When such a system is triggered, the ventilation grilles are checked for contamination. Use a soft brush to clean them.

Conclusion on the topic

Repair of mechanical mowers is carried out when the cutting elements are dull or damaged. In this case, experts recommend dismantling removable knives on their own. For their sharpening, emery is used. If necessary, the battery in rechargeable models is replaced.

Before repairing a lawn mower, the type of motor is determined:

Electric - the motor is powered by current. The unit shuts down due to overheating or overload. Some models do not have overheating protection. In case of mechanical damage to the engine, the help of professionals will be required.
Gasoline - the device fails as a result of overheating, overload, breakage of the oil and fuel supply circuit. Gasoline lawn mowers take longer to repair than electric models.

To extend the life of the lawn mower, it is recommended to follow the rules for using the device.

Source: http://1sadteh.ru/sovet/remont-gazonokosilok.html

Repair of lawn mowers - malfunctions of lawn mowers and how to fix them with your own hands, lubrication of the gearbox, replacement of fishing line, video

At first glance, a simple device for mowing grass with a two-stroke engine, has fine tuning. Repair of lawn mowers must be entrusted to a specialist or to study the technique yourself, using the instruction manual. Maintenance of the scythe is necessary. Lubrication of the gearbox, replacement of fishing line, sharpening of teeth can be carried out on their own.

Malfunctions of lawn mowers and ways to eliminate them

Any type of lawn mower has a hollow rod, in which a connecting cable is placed between the motor shaft and the lower gearbox, which transmits rotation to the working body with the cutting tool.

In the upper part there is a carburetor and a motor, at the bottom there is a gearbox and a working tool covered with a casing. In the middle part there is a transverse handle in which the control buttons are located.

To unload the hands, there is an unloading belt that holds the bar with the operator's torso.

When choosing a lawn mower, a device with a two-stroke engine is preferable than a four-stroke one. A two-stroke motor is more maneuverable and easier to repair. With a four-stroke unit, the vibration level is lower.

They follow this, the repair of lawn mowers consists in troubleshooting;

the engine does not start;
the cutting mechanism is not gaining momentum;
the engine stalls;
the gearbox heats up;
an extraneous knock is heard, a strong vibration of the rod.

Before troubleshooting, you need to diagnose, determine the non-working node.

It is important to know the lubrication points of the tool. Constant care, cleaning the device after work will extend its life. Before work, it is necessary to tighten the fixing bolts, prepare fuel and fill the tank.

Chainsaw engine won't start

If the mechanism does not start, immediately stalls, sequentially check:

Is there fuel in the tank?
serviceability of the spark plug;
cleanliness of the air and fuel filter;
cleanliness of the breather and exhaust channel.

It is necessary to fill with a freshly prepared mixture based on AI-92, the oil is injected for accurate dosage with a medical syringe. This will help avoid expensive chainsaw repairs.

It is necessary to make sure that the candle is working, gives a spark when in contact with the body. In this case, it is necessary to dry the candle channel, clean and dry the part itself.

You can change the candle, but the channel still needs to be dried for 40 minutes. Check the serviceability of the high-voltage wire, there may not always be contact.

A malfunction in the ignition unit during the repair of lawn mowers cannot be eliminated with your own hands.

If the engine does not stall when the air filter is removed, the reason is that it needs to be replaced or cleaned. Fuel filter replacement is carried out with great care. After checking the cleanliness of the breather, remove the muffler mesh and clean the exhaust channel.

The next step will be to repair the carburetor, where you will have to find the fault and fix it, taking into account the tiny dimensions of the parts. If the simplest operations did not bring results, in order not to disturb the fine tuning of the system, it is better to entrust the repair to a specialist. Where to start diagnosing and how to properly repair lawn mowers with your own hands, check out the video:

Repair and lubrication of the lawn mowing gearbox

The role of the gearbox is to transfer torque from the motor shaft to the cutting tool through 2 toothed gears with different numbers of teeth. The torque is transmitted at an angle of 300. The number of revolutions of the lower cutting disc is 1.4 times less than the engine speed. Gears must be clean and lubricated. To supply oil to the teeth, there is a hole under the screw on top.

Lubrication of the lawn mowing gearbox is carried out at least once a season. If the work is intensive or there is extraneous noise in the lower node, it is necessary to lubricate more often.

First, the place where the cork closes the hole should be cleared of earth and grass. Unscrew the plug with a suitable tool, it is included with the saw. We use grease from a tube.

Either the native lubricant from the manufacturer is selected, or well-known high-quality compounds, such as Oleo-Mas, Litol -24, Azmol 158. We open the protective layer of the tube and lay the tool on its side. Slowly rotating the knife, squeeze the lubricant into the gearbox housing.

Gears, turning, carry the composition with teeth over the entire surface. You can also pour grease with a special syringe.

Too little or too much lubricant can cause the gearbox to heat up. An audible knock and play signal the destruction of the bearing or the ingress of dirt due to damage to the anthers. Bearings must be replaced using a puller, not using the heating method.

If the gearbox staggers and rides on the rod, it is necessary to replace the housing, or temporarily tighten the assembly with a clamp to secure it to the pipe. If the knife stops rotating, it means that the gears do not engage - the teeth were worn or crumbled. You will need to replace the pair with a complete analysis of the assembly.

The disassembly of the gearbox with the dismantling of the shaft and bearing assemblies must not be carried out using heating. When heated, the metal loses its strength qualities and in the future the assembly becomes unreliable. A puller is used to remove the bearings.

When replacing the gearbox, it is necessary to select a new unit, guided by:

pipe diameter;
drive shaft diameter;
cross section of the drive shaft;
protection fastening method

Care of the cutting units of the lawn mower

The saw set dulls or wears out over time. Working with the tool becomes tense, the load increases, the quality of the swath deteriorates. Metal saw blades are sharpened, plastic ones are changed.

If the cutting tool is a fishing line, it gradually wears out, and new material is installed in the coil.

The principle of operation of the cutter with fishing line lies in the gradual unwinding of the coil under the action of centrifugal force. When in contact with the grass, the fishing line is worn out, it is fed from the reel gradually.

A special winding is needed so that the two cutting elements come out at the same time and do not get confused with each other.

The figure shows how to properly wind the line on the spool of a lawn mower. Before winding a new fishing line, you must:

unscrewing the nozzle, carefully remove the cover, holding the spring with your hand;
remove scraps of old fishing line from the reel;
measure 5 meters of a new string and fold it in half;
in the coil guides for 2 ends, hook the middle part into the notch and wind in the direction of the arrows for each half of the string;
pass the remaining 20 cm through special recesses at opposite ends of the coil;
install the spring and washers, bring the ends of the fishing line out, close the drum with a lid.

In order to better understand how to change the line on a lawn mower, watch the video.

Replacing the fishing line in the trimmer head of the lawn mower - video

Source: http://www.glav-dacha.ru/remont-benzokosy-svoimi-rukami/

Do-it-yourself lawn mower repair, drawings, photos

Do-it-yourself lawn mower repair

A lawn mower is a wonderful alternative to a hand scythe, making it easier and faster to cut grass in a variety of places, including those where a regular scythe simply won't turn. But behind the comfort and convenience is a complex modern mechanism that requires tireless attention and regular maintenance.

Regardless of the manufacturer, all units have a similar design. Therefore, repairing a Viking lawn mower with your own hands is carried out similarly to repairing other brands: Husqvarna, Shtil, Bosch, Gardena, Oleo Mac.

A homemade lawn mower will not be an exception, but repairing a breakdown requires basic knowledge.

Consider the most typical causes of engine failure, and do-it-yourself lawn mower repair in the field.

Repair of the mechanical part for all types of lawn mowers

Regardless of the type of engine, the mechanical part of the scythe includes knives, a device for ejecting or collecting cut grass and a transmission mechanism. Most often, knives fail or the fishing line ends.

Cleaning the mechanical part of your Bosch lawn mower

Breakage or bending of knives is visible to the naked eye. Depending on the material and the degree of damage, the knives are replaced or restored by simply bending them back to their original state.

In case of severe wear, the cutting part can be sharpened. A do-it-yourself lawn mower made from a trimmer can fail for many reasons.

Most often, this is an excess of the maximum permissible load on the torque and the engine, since a knife is used instead of fishing line.

Trimmer throttle recovery

During the inspection, check the condition of the air duct for feeding the grass into the container and clean it if necessary. More complex mechanical breakdowns require complex tools, special equipment, professional skills, and it is better to entrust the elimination of such malfunctions to professionals.

Do-it-yourself electric lawn mower repair

Not only factory-made, but also home-made electric lawn mowers fail. The main reason for stopping the electric motor is the loss of contact and the lack of power at the motor terminals.

Drawing of an electric lawn mower using the TBH 1650 as an example

Therefore, first of all, we check the presence of voltage in the power outlet, the condition of the electrical cord and the absence of its breakage. Then, if a commutator motor is used, you need to check the condition of the brushes and replace them if they are very worn. The brushed motor hand mower is durable but requires regular brush replacement.

Do-it-yourself electric mower engine repair

Manual lawn mowers with an asynchronous motor also have problems. The phase-shifting capacitor often fails, but it is problematic to check it in the field. An indirect sign of a capacitor failure is:

jerking of the motor at the time of power supply;
strong heating of the engine even at low load;
reduced turnover;
characteristic buzz.

Do-it-yourself electric lawn mower is made from improvised materials that can fail. If a malfunction is detected, in any case, you need to make sure that voltage is applied to the motor terminals, and in its absence, check the operation of the switch.

DIY electric lawn mower

If there is voltage, the capacitor or brushes are in order, then the burnt winding is the most likely cause of the breakdown. In this case, the unit will have to be handed over to a repair shop. Home-made electric lawn mowers most often have to be repaired on their own, since when assembling the device, all the nuances of its operation are not taken into account.

Do-it-yourself electric lawn mower repair video

Petrol lawn mower repair

Lawn mowers use gasoline two-stroke internal combustion engines.

When deciding how to make a lawn mower with their own hands, they often use engines from other household appliances - chainsaws, compressors, motor plows and trimmers.

The process of finding and fixing the problems of these engines is carried out according to one algorithm. Repairing a gasoline lawn mower with your own hands begins with determining the cause of the failure.

General scheme of a gasoline lawn mower

The engine starts and runs normally, but the blades do not rotate.

In this case, failure of the mechanical part is guaranteed or, alternatively, its attachment to the motor shaft is destroyed.

Breakdown of the mechanical part and repair of the Viking lawn mower with your own hands

Hard to start but works fine

A do-it-yourself mechanical lawn mower with a gasoline engine does not start well, but it works normally in operating modes (when gas is supplied). Such a malfunction can be caused by two reasons - a failure to adjust the idle system in the carburetor or the wrong fuel composition.

Detailed drawing of a petrol lawn mower

To eliminate it, you should start with fuel, combine gasoline and oil of the required grades in the required proportion and pour this fuel into the tank instead of the old one. If this does not help, remove and disassemble the carburetor and adjust the idle system in accordance with the manufacturer's instructions.

The engine does not start well and is unstable in all modes

The most likely causes are clogged fuel jets, clogged fuel filter, clogged air filter. To eliminate: jets are blown with compressed air, filters are changed or washed, depending on their design.

Bosh lawnmower engine repair

Engine starts but won't hold load

If the engine starts and runs at idle, but does not hold the load well during operation. Most likely, "oxygen starvation" takes place. Do-it-yourself repair of lawn mowers is carried out by replacing or cleaning the air filter using the “purge method”.

Repairing lawn mowers if the engine does not start

It happens that despite the presence and normal supply of fuel, the engine does not start. Most often, the absence of signs of life indicates a failure of the ignition coil. If, upon visual inspection, all electrical circuits are in order, then this coil will need to be replaced.

Do-it-yourself lawn mower engine repair

A less common case is heavy carbon deposits or a failed spark plug. It is determined by visual inspection of the unscrewed candle. The most effective way to determine this malfunction is to replace the spark plug with another one that is known to be good. When thinking about how to make a lawn mower if the engine does not start, pay attention to replacing the candles with new ones, and preferably more reliable ones.

How to make a lawn mower with your own hands video

Outcome

Given the peculiarity of the “field conditions” in which lawn mowers are operated, the manufacturers of these devices have tried to protect their consumers from possible problems as much as possible.

But, as you know, even a hand-made mechanical lawn mower, made with your own hands, can one day fail.

We really hope that our advice will help you in this case and direct the troubleshooting in the right direction.

Source: https://vsadu.ru/post/remont-gazonokosilok-svoimi-rukami.html

Do-it-yourself electric lawn mower repair: does not start, stalls

In order not to transport a sufficiently voluminous apparatus to the workshop, a number of malfunctions can be eliminated with your own hands.

Types of malfunctions of electric mowers

Why won't lawn mowers start?

To answer the question, you need to understand that all breakdowns are divided into mechanical and electrical. The first ones include faults:

knives;
wheels;
handles;
corps.

To the second - everything related to the engine, whether it is electric or gasoline.

In battery devices, battery failure is added to this problem. It is more difficult to cope with the repair of a lawn mower equipped with a motor, i.e. petrol and electric lawn mowers.

Overheating is caused by running the unit for a long time with the air filter in poor condition, making it difficult for sufficient air to pass through.

The appearance of extraneous noise or smell indicates that the electric lawn mower needs repair. Not everyone will do it with their own hands, because the drive will need to be replaced.

Electric lawn mower does not start or stalls

Sooner or later, many are faced with the failure of the lawn mower. This happens, as a rule, after 3-4 years of active operation or after the device was stored in an unheated room in the winter.

The lawn mower is out of order if:

does not start;
lawn mower stalls shortly after starting;
the engine does not run at full power or intermittently

How to identify the cause of the breakdown?

Attach a candle to a clean metal surface (without paint) of the engine, having previously put a cap on it, and asking someone to pull the starter.

If no blue spark appears, the spark plug needs to be replaced.

If an unstable and weak spark appears, the candle will need to be cleaned with a needle file or sandpaper.

They also change it if black soot is found on the surface, regardless of whether it was formed due to poor fuel quality or an incorrectly tuned carburetor.

How to clean a carburetor?

You should start by checking that there are no open sources of fire nearby. Repairs must not be carried out indoors. This is fraught with leakage of gasoline.

The carburetor is attached to the engine with two bolts, which require a socket head to unscrew. When unscrewing the second bolt, try not to drop the carburetor so as not to damage the spring suspension.

After removing the carburetor, unscrew the bolt securing the fuel chamber cover.

Cleaning is done with a special liquid or WD-40 and a copper wire from which the insulation has been removed.

Finally, you can remove the plastic float under the chamber cover that regulates the level of gasoline, for which the pin is first removed.

After completing all the steps described, assemble the carburetor in the reverse order.

After installing it in place, connecting the hose, air is expelled from the fuel chamber. This completes the repair.

After the described manipulations, the equipment will start easily and work stably.

Malfunctions of electric lawn mowers

Electric Mower Fault Repair

Jamming of the knives can be caused by long grass wrapped around them. To repair, you need to disconnect the device from the network and twist the cylinder in the opposite direction.

The new belt is first installed on the small gear of the electric apparatus, then put on the large pulley, and turning it.

To replace the power cable of this electrical device, it is necessary to de-energize the device and unscrew the cover.

To disconnect the cord, insert a hex wrench into the hole with the wires, releasing the clamp.

Install the new power cord in reverse order.

The reason may also be in a faulty power switch, which is simply replaced with a new one.

Repairing an unexpectedly stopped electric motor

: Lawn Mower Repair

Preventive work

The mower's electric motor is air-cooled, so it also needs to be kept clean, which is the key to efficient operation. Suitable for cleaning the cooling fins with a soft brush and compressed air.

Timely oil changes, as indicated in the user manual, will be the key to long trouble-free operation, as well as periodic cleaning of the air filter.

With some experience, it is easy to repair lawn mowers with your own hands. below will help you with this.

: How to repair a lawn mower engine

Where can I get my lawn mower repaired?

http://remontbenzogeneratora.com.ua/services/remont-kos/Remont-gazonokosilok/(Kyiv). Repairs are carried out by highly qualified specialists, both at the location of the center and at the customer's home. Departure of the master in the city is free. They work with equipment of all manufacturers, use high-quality spare parts. And get the whole range of services offered at affordable prices;
Even high-quality and expensive models have an unpleasant habit of breaking. In order not to spend money on the purchase of a new lawn mower, it needs periodic service maintenance, which the Repair of Everything company will help to carry out in a quality manner ( http://remontvsego.com/teh/sad/gazon/). The cost of repair depends on the breakdown and ranges from 150 UAH. Departure of the master in the city is free, in the region (for a distance of up to 50 km one way) - 8 UAH per km. Replacing the motor will cost 250 UAH;
"Master Engineering" is another service center in Kyiv, where lawn mowers are repaired efficiently and quickly ( http://www.masterengine.com.ua/ru/remont.html/;
From 100 UAH prompt repairs in Kyiv in the company will cost, you can learn more about it on the website http://kiev.prom.ua/p82660097-remont-dvigatelej-briggs.html?utm_campaign=%2528portal%2529%2520%25D0%25A0%25D0%25B5%25D0%25BC%25D0%25BE%25D0%25BD%25D1 %2582%2520;
From 50 UAH - http://kiev.prom.ua/p239905849-remont-gazonokosilok.html;
From 130 UAH - (Kharkiv);
Any problem will be eliminated in Minsk by specialists of companies, a large list of which is given on the website http://allservice.by/companies/dacha/Remont_gazonokosilok/.
They will provide qualified assistance at the address http://allservice.by/companies/service_avtomobilei/1151.html/;
Repairs can be done at affordable prices here. http://allservice.by/companies/remont_oborudovanie_intsrumenta/275.html/;
In Moscow, the repair of garden equipment is carried out by the Yugo-Vostok Workshop 9 http://remont4tehniki.ru/), where lawn mowers from brands such as Gardeha-Gardena, Husqvarna-Husqvarna, Viking and many others will be brought back to life. Repair times are minimal, and the cost is determined upon inspection.
Employees of the company "Abris" () after an accurate diagnosis will perform work of any complexity - from changing the oil to repairing the engine. It will be required to lay out for repair work: for diagnostics - 1200 rubles, adjustment and cleaning of the carburetor - 770, replacement of the candle and air filter - 120 and 240 rubles, respectively; replacement of the gas and stroke cable, flywheel keys and itself - 400 rubles each. etc. http://www.remsad.ru/remont-gazonokosilok-i-benzokos/);
Moscow ( http://technoded.ru/servis/remont-gazonokosilok/);
More than 100 companies whose addresses can be found on this site offer their services for the repair of lawn mowers. http://prom.ua/Remont-gazonokosilok.html?no_redirect=1/.

: Lawn Mower Repair

Repair of lawn mowers is carried out taking into account the principle of operation and the cause of the breakdown of the unit. More often the device fails in 3-4 years after active operation.

Lawn mower repair is necessary in the following cases:

the device does not start;
the unit quickly stalls after starting;
the motor is not running at full power.

Causes of the malfunction

Causes of lawn mower failure:

mechanical;
electrical.

If the mower is operated with a dull or damaged blade, the lawn will cut unevenly. In this case, the device may vibrate or stop abruptly.

If the blades are not correctly positioned, the cylindrical lawn mower makes sudden and uncontrollable movements. Normally, the gap between the cutting elements should be thinner than a sheet of paper. Otherwise, the clearance is adjusted. It is preliminary recommended to study the instructions for the device, remove the plug from the socket. When the connection is loose, a whistle appears. The device vibrates and rattles. Repairing a lawnmower means adjusting the bolted connections.

Malfunction of electrical models

Motor problems occur when the mower overheats:

as a result of long work;
due to overload (the cutting element is blocked by some object).

In the first case, it is recommended to wait a few minutes for the motor to cool down. In the second case, you will need to remove the stuck item. The efficiency of the cooling system depends on the condition of the air filter. A dirty device does not pass air well, which contributes to the shutdown of the device. Experts advise cleaning and changing the filter once every 3 months (with constant use of the lawn mower). If the electric motor breaks down, a corresponding smell and noise will appear. In this case, the drive will need to be replaced.

Motor failure

The design of a gasoline lawn mower, unlike an electric counterpart, is more complicated. In some cases, the unit cannot be repaired. If the engine does not start or immediately stops, then it is recommended to check the ignition. To do this, you need to dismantle the candle. A dry plug indicates problems in the supply system, and a wet one indicates a carburetor. In such cases, repairs are carried out by professionals.

If the blades are blocked by long grass, then it is recommended to turn off the mower. The cylinder is scrolled with a wooden stick (in the other direction) until it rotates freely. If the lawnmower does not work as a result of a switch failure, then it is recommended that it be checked and replaced with a working analogue.

Conclusion on the topic

Before repairing a lawn mower, the type of motor is determined:

Electric - the motor is powered by current. The unit shuts down due to overheating or overload. Some models do not have overheating protection. In case of mechanical damage to the engine, the help of professionals will be required.
Gasoline - the device fails as a result of overheating, overload, breakage of the oil and fuel supply circuit. Gasoline lawn mowers take longer to repair than electric models.

To extend the life of the lawn mower, it is recommended to follow the rules for using the device.

It is quite easy to identify the reason why the lawn mower does not start. Trimmer zenith zts 1400 description. The trimmer petrol carburetor does not start. Following our method, you can identify the cause of the disgusting launch of the gasoline spit and remove

Why the lawn mower does not start troubleshooting

When caring for a personal plot, summer residents are sometimes faced with the fact that the lawn mower does not start. There are many reasons for tool failure. The trimmer does not start well. For the correct diagnosis of the problem, the owner of a unit useful in the country should know the device and the mechanism of operation of its individual parts.

Since the gasoline trimmer is a complex device, you need to carefully study the operating instructions before work. Very often it is simply ignored, or gets acquainted with it superficially. As a result, when the tool stalls or refuses to start, the question arises - “Why not starting a lawn mower? A long seasonal break in work, improper storage and untimely maintenance of the trimmer will cause a lot of trouble for the summer resident to eliminate the causes.

Where to start diagnosing motokosa

If the lawn mower does not start or immediately stalls after starting, it is necessary to check all the main components and assemblies in sequence. The verification algorithm is as follows:

Fuel tank (fuel quality);
Candle and candle channel;
Air filter;
Fuel filter;
Breather;
outlet channel.

These nodes are most often the source of the main problems, which can be eliminated after a thorough inspection.

Checking the fuel mixture

Before starting the gasoline scythe engine, check the presence and quality of the fuel mixture. Do not save, do not be greedy and "do not be clever" in this matter. The best lightweight petrol trimmer. Repair or replacement of the piston group will cost you too much (sometimes up to 70% of the cost of a new tool). Prepare the oil-fuel mixture strictly according to the instructions. Calculate its quantity from real needs. Excess gasoline left after work loses its quality over time.

We carry out diagnostics of a candle and a candle channel

If the quality of the fuel mixture is beyond doubt, and the lawn mower stalls at start-up, then a flooded candle may be the cause. Here, an ordinary candle key (every motorist probably has one) and a spare candle are suitable for repair.

We unscrew the candle and wipe it;
Dry it thoroughly (do not ignite);
Excess fuel in the chamber is drained through the candle hole and dried;
We clean the old candle from soot with the help of a file or lady's file;
We set the gap with a distance of 1 mm (you can check with any coin);
We return everything to its place and try to start the trimmer.

It takes at least 30-40 minutes to dry the canal. Otherwise, there is a risk of re-filling a new candle.

If the candle is working, the socket where it is located is completely dry, and the lawn mower does not want to start, we lubricate the threaded connection with gasoline. It should be slightly moist. No matter how wonderful a spark a candle gives out, there is simply nothing to light up in a dry chamber.

If the trimmer engine still does not start, such a reason as the absence of a spark due to poor contact between the candles and the high-voltage wire should be excluded. Motokosa trimmer review comparison. If the connection is of high quality, but there is still no spark, most likely your ignition unit has “flew”. Here it will not be possible to do without a master, because the part is not repaired, but is sold as a whole assembly.

BRIGGS STRATTON lawn mower repair

If the engine is running it is not clear how and start up not always, stalls under load - it's time to disassemble.

PROBLEMS WITH BRIGGS STRATTON. Lawn mower.

Not start up, stalls, Bang-bang-puff, Dripping gasoline from the carburetor and other malfunctions on lawn mowers

Diagnostics of filters of lawn mowers

Another reason why a gasoline spit stalls can be an air filter. To eliminate it, try removing the filter and starting the trimmer without it. If possible, then you will have to change the air filter to a new one, or at least blow and thoroughly clean the old one.

The gasoline trimmer may not start due to contamination of the fuel filter. This is the next step in our algorithm. Here we check the condition of the filter element and, if necessary, change it with a new one. When replacing, try not to leave the suction pipe completely without a filter, this is prohibited by any instruction manual. Scythe trimmer petrol calm. The rush can result in the repair of the engine piston group.

Breather and outlet

Often, “gentle” branded models of lawn mowers do not start and stall due to contamination of the breather. The main function of this element is to equalize the pressure in the gas tank. When this assembly is clogged, a vacuum is created in the tank, preventing the supply of fuel. You can fix the problem by cleaning the breather. Huter trimmer won't start. You can use a regular needle for cleaning.

The normal operation of the spit with internal combustion engines may be impaired due to the ingress of dirt into the exhaust channel or clogging of the muffler screen. The petrol trimmer will not start. There is such a problem on older models. The issue can be resolved by traditional cleaning and removal of the anti-spark grid.

More complex causes of lawn mowing failure

If the step-by-step troubleshooting algorithm did not work, and your scythe still does not start or stalls, it is worth inspecting the carburetor and the engine itself. A clogged carburetor can be one of the reasons for the unstable operation of the tool. There are three main problems here:

Clogged channels or jets. All this is cleaned with special flushes or blown with a powerful jet of compressed air from the compressor. Do not use needles and wire, as the flow sections may be damaged;
Worn carburetor gasket. The trimmer stalls when you press the gas. Exit - replacement of a failed gasket;
Violation of tightness. To check this indicator, you can use an ordinary household tonometer, replacing the pressure gauge on it with a suitable one. Dry spark plug trimmer won't start. Rating petrol trimmer for the garden. Follow the readings: if they do not change, everything is fine, but if the pressure starts to drop, then some part of the carburetor is faulty. We'll have to find it and replace it with a new one.

If everything is in order with the carburetor, then the gasoline trimmer may not start due to wear on the piston group. If chips, scratches or scuffs are found on the piston or cylinder, they should be replaced. Piston rings are subject to mandatory inspection. A small backlash of the piston when the connecting rod is rocking indicates that it is time to change the rings. This procedure is best entrusted to the specialists of the service center.

Rules for the operation and storage of lawn mowers

In order for the lawn mower to start well in the future, it is necessary to provide it with good storage and operating conditions:

during operation, carefully monitor the cooling system, carefully and timely clean the channels in the housing, as well as the starter fins;
if necessary, use solvents, kerosene and other detergents for cleaning;
do not clean the tool "hot" - let it cool down;
strictly follow the requirements of the instructions regarding the mode of operation, otherwise you may overheat the engine;
if you do not plan to use the lawn mower in the next month, the fuel mixture must be drained from it, because over time it breaks up into heavy fractions that will definitely clog the carburetor channels;
after draining the fuel, let the trimmer idle until it stalls, this will help to completely remove the remaining mixture.

Follow these steps before winter storage:

completely disassemble the braid, rinse and clean all the parts that you can;
inspect the parts for damage, if necessary, eliminate distortions, gusts, bends and any other malfunctions;
pour enough oil into the gearbox and clean the air filter;
you can partially disassemble the motor, rinse, blow and lubricate all moving parts;
in order to lubricate the piston, you need to unscrew the candle, raise the piston to the extreme dead center with the starter, pour a little oil into the candle hole and turn the crankshaft a couple of times;
if you store the lawn mower outside the house, wrap the engine with oiled rags.

Remember, careful observance of the rules will allow you to forget that it is bad to start a lawn mower for several seasons.

The benzokosa represents the mobile high-performance tool for an ennoblement of personal plots and adjacent territories. With prolonged use, due to wear of parts or manufacturing defects, malfunctions occur that lead to the fact that the trimmer stalls or does not start. Since this tool is a rather complex mechanism, there may be several reasons why the lawn mower stalls.

Why does the trimmer stall

There are two main ways to fix problems: transferring the scythe to a specialized center or solving the issue yourself. The first option is suitable for those who are ready to pay a “tidy” sum to restore the unit’s performance, and the second for someone who has basic locksmith skills and can independently deal with the causes of breakdowns and ways to eliminate them.

It is currently customary to classify breakdowns, according to which the lawn mower stalls, into the following categories:

mechanical damage to the crankcase of the internal combustion engine, malfunctions of the cylinder-piston group (CPG);
breakdowns associated with the supply of the fuel mixture (air filter, carburetor);
malfunctions due to damage to pipes, hoses, cables or ignition circuit.

Motokosa stalls at high engine speeds

During operation, a situation arises when, when the fuel mixture supply button is pressed, the unit speed does not increase, but decreases. A malfunction of this nature can be caused by:

Fuel hoses for lawn mowers with filter

etching atmospheric air into the combustion chamber;
problems with the circulation of the fuel mixture;
clogging of the breather in the fuel tank cap (cleaning the hole with a thin sewing needle);
incorrect carburetor adjustment.

When air leaks during the operation of the internal combustion engine, it is necessary to check the tightness of the connection of the nozzles and the integrity of the gaskets in the CPG. The problem with the circulation of the fuel mixture can be solved by eliminating blockages in the fuel pipes leading to the carburetor. If a vacuum occurs in the tank and the fuel mixture does not reach the carburetor, it is enough to clean the breather with a thin needle and blow it with air.

Gasoline trimmer stalls at idle

Often, when the speed is reduced, the engine of the lawn mower stalls and does not maintain idle speed when it is restarted. The main reasons for the occurrence of such a breakdown include contamination or misalignment of the carburetor, as well as clogging of the air filter.

Gasoline trimmer stalls at idle

If the optimal settings of the carburetor are violated, it is necessary to clean it and re-adjust it. A clogged trimmer air filter can be dealt with by soaking it in a solution of common household detergent for several hours. If self-cleaning did not help to cope with the blockage, then it is better to purchase a new filter element in accordance with the instruction manual.

After the events, the user for a long time will not encounter a situation where the trimmer stalls at idle and only functions when gas is supplied.