What kind of oil to pour into a 4t lawn mower

16th July 2021

Selection recommendations

It is best to use a specially designed oil for 4-stroke lawn mower engines in accordance with the ambient temperatures in which the equipment will be used. For example, specialized grease grades 10W40 and SAE30 are quite suitable for four-stroke mowers in terms of their operational parameters, which can be used at ambient temperatures in the range from 5 to 45 degrees Celsius.

In the absence of specialized oils, you can use other classes of oils used for cars. These can be grades SAE 15W40 and SAE 20W50, which are also used at positive temperatures, but only their threshold is 10 degrees lower than specialized ones (up to 35 degrees). And also for 90% of the available models of four-stroke lawn mowers, the oil of the SF composition will do.

The container with engine oil for a four-stroke lawn mower must be marked with the “4T” sign. Synthetic, semi-synthetic and mineral oils can be used. But most often they use semi-synthetic or mineral oil, since synthetic oil is very expensive.

Typical disadvantages

Overheating can cause malfunctions.

Typical abnormalities in mower operation include:

Stranger sounds, knock: tighten the bolts.
Strong vibration: tighten the bolts and see if the knife works.
A wheezing sound indicates the presence of a foreign body, which should be removed with a pause.
Rough cuts can be removed by sharpening or replacing blades.
Front wheel drive stop: adjust the tension of the clutch cable.
When the engine stops after starting, they check the oil level or start the jammed objects by hand, or contact a garden tool repair service.
Mower off: check spark plugs and fuel.

There may also be other problems, including wear and tear or manufacturing defects.

Much depends on proper care and maintenance of your garden tool. Then the difficult task of creating a beautiful lawn is solved very successfully using reliable equipment.

How to replace an AL-KO lawnmower

Lawn mower. A very necessary thing for those who need to re-mow grass on lawns and other lands. But with the purchase of this tool, we must not forget that it, like any other mechanism, requires multiple maintenance. Play a video with a gasoline mower. One of them. Change of oil. How to change the oil in the lawn mower, which liquid is better to fill? You will find out the answer from the article.

Lawn mower. A very necessary thing for those who need to re-mow grass on lawns and other lands. Electronic lawn mowers do it themselves. But with the purchase of this tool, we must not forget that it, like any other mechanism, requires multiple maintenance. The design of the Makita 3710 lawn mower. One of such moments is the oil change. How to change the oil in the lawn mower, which liquid is better to fill? You will find out the answer from the article.

How often do I need to change fluid?

It should be noted that the frequency of oil changes directly depends on the technical condition of the engine. Lawn mowers popularity rating. For example, if the engine of a lawn mower is new, the fluid should be changed immediately after a breakdown. In terms of time, this is about 5-6 hours of the mechanism. In order to prevent various debris from getting inside and collecting in the engine in the future, it is necessary to change the water several more times with a frequency of 5-10 hours.

Why do you need lubricant?

Gasoline lawn mower engines are internal combustion engines (ICEs), in which the driving force transmitted from the ICE to the working bodies (cutting knives) is generated by the energy generated in the combustion chamber of the cylinder when the fuel mixture is ignited. As a result of the ignition, the gases expand, forcing the piston to move, which is associated with the mechanism for further transfer of energy to the final organ, that is, in this case, the lawn mower knives.

In the engine, therefore, many large and small parts are mated, which need lubrication in order, if not completely to prevent their abrasion, destruction, wear, then at least to slow down these processes, negative for the mechanism, as much as possible.

But over time, this cannot be avoided, since the development of gaps in the mates still occurs. And the better the oil, the longer the service life of the garden equipment will be. In addition, with the help of high-quality lubricants, the following positive phenomena occur:

better cooling of the engine and its parts, which prevents overheating and thermal shock;
engine operation is guaranteed at high loads and with a long time period of continuous grass mowing;
the safety of internal engine parts from corrosion is ensured during seasonal equipment downtime.

Which lawn mower oil to choose?

It should be emphasized that a certain type of water and its viscosity are directly dependent on the temperature criteria in which this tool is used. So, if the weather is warm (temperatures from plus 5 to plus 30 degrees Celsius), it is recommended to use the SAE-30 series fluid. Therefore, an oil change is required. For domestic use, change the oil in the lawn mower. Replace once a year. 2. Oil change. In a Husqvarna lawnmower or. In the off-season, experts advise to fill in oil for lawn mowers with a viscosity of 10 W-30. In winter, 5W-30 series fluid can be used

You should also pay attention to Synthetic 5W-30, which, by its properties, ensures reliable operation of the lawn mower at relatively low temperatures.

Oil change

And now about how to change the oil in lawn mowers. The whole process can be divided into several stages:

First we combine the ancient liquid.
The mower then turns to the side (on the side where the drain is located) for a couple of minutes, until the wastewater is 100 percent drained away. The tool then returns to a horizontal position. With all this, you need to prepare a small container for old oil in advance.
Then a new one is poured through the mouth into the lawn mower.

At this stage, the oil change can be considered complete. When filling the neck with the last liquid, do not forget to pour it strictly to the mark in the crankcase.

Promo MTD 46 S

In terms of popularity, it is not inferior to the previous model: the engine power is 1700 W (2.3 liters), the wheel diameter (180 mm) provides full cross-country ability. Self-propelled tool mowing range is 28 to 92 mm.

Running in a 4-stroke engine

What you need to know about running in a 4-stroke engine with an air cooling system installed on garden, garden and park equipment

To begin with, be sure to read the operating instructions provided by the manufacturer of the equipment on which the engine is installed. Study it! Many buyers do not do this and significantly reduce the service life of their equipment.

Which gasoline is better to use?

Based on the advice of specialists of service centers for the repair of gasoline 4-stroke engines, it is recommended to use gasoline with an octane number equal to 92. The use of gasoline with grades AI95 and AI98, due to the presence of “additives” in the composition, has a detrimental effect on the pistons and engine valves, leading it to early wear and, accordingly, to breakdown. It is recommended to use “fresh” gasoline, the shelf life of which has not exceeded 30-45 days.

What oil to use and how much oil to fill?

Many gardening equipment buyers are of the opinion that the oil used in a car is perfect for equipment equipped with an air-cooled 4-stroke single-cylinder engine. This opinion is wrong. Automotive oil is designed to operate in a water-cooled engine and has a lower boiling point. Specialty oils designed for gardening equipment contain special additives and are focused on air-cooled engines. Most manufacturers recommend SAE 30 API SF / CD oils.

A very important point is the buyer’s control over the oil level in the engine crankcase. It is necessary to pour oil into the crankcase so that when the engine is in a horizontal position, the oil level is on the last thread of the filler neck (Fig. 1). Check the oil level before each operation of the equipment.

Please note that in each specific engine installed on the equipment, a different volume of oil can be poured. The required amount and type of oil, as a rule, is indicated in the operating instructions or on the engine itself, in the form of a reminder sticker. Basically, for engines from 4 to 7 HP, 0.6 liters are poured into the engine. oils. Please note if a new engine contains 500-550 ml before the first start. oils are not a marriage! The reason for this is an engine oiled by the manufacturer for its further sale in other countries.

The first start of the engine is very important for its further operation. Please note that during the first or cold start of the engine, there is a large load on the piston system! To avoid overloading, start the engine with the throttle (throttle) stick in the maximum position. As soon as the engine starts, move the throttle handle to 3/4 throttle position, and in warm weather. 1/2 of the maximum value. Procedure.

Open the fuel supply from the gas tank to the carburetor.

Move the air damper position to the “closed” position.

The rope starter (traction cable), designed to start the engine, must be “pumped” 3-4 times until an obvious resistance of the cable appears. At this moment, gasoline is supplied to the carburetor.

Then, with a sharp jerk to the right of yourself, start.

After starting, depending on the temperature outside, after 1-3 minutes, we move the air damper handle to the “open” position.

Engine idling.

The running-in of an air-cooled 4-stroke engine is source of controversy among service specialists. Based on the data received from the specialists of authorized service centers, we found out that running in the engine only at idle speed is not acceptable. Depending on the manufacturer of the equipment, the instructions may recommend a combined run-in system.

So, after starting the engine (see “starting the engine”), let it warm up for 5-7 minutes. After warming up, you can go to work. The first 5-20 hours of the “life” of the engine (depending on the type of equipment, see instructions) do not put a heavy load on it. Try to stick to 50-75% load.

In the case of running-in a motor cultivator with installed cutters, do not try to deepen it to the full depth of the cutters.

An obligatory moment of operation will be the observance of the recommended time regimes, 25-30 minutes. work, 15-20 rest / cooling.

After the first 5-20 hours of operation in a gentle mode, replace the oil in the crankcase with a new one. Your equipment is ready to go!

The four-stroke engine is widely used in gardening equipment (motor cultivators, motor pumps, brushcutters, snow blowers, lawn mowers), road construction equipment (generators, vibrating plates).

Compliance with the above recommendations will extend the service life of gasoline vehicles many times over. Best wishes, Electromax Company LLC

What kind of oil to pour into the lawn mower?

Everyone knows that a car engine requires special care, which will ensure a long and trouble-free life of the engine. The same rule applies to the motor of a gasoline lawn mower: depending on whether you have a grass trimmer or a large four-wheel mower, you will be faced with the problem of choosing the oil. What are the basic requirements for lawn mower engine oil??

As with any unit, there is an instruction for the lawn mower, which contains not only the main characteristics of the tool, but also the rules for caring for it. So, the instructions will say that only specialized oil should be used for lawn mowers. And some manufacturers insist on using the same brand of oil as the lawn mower itself.

In fact, this fact turns out to be just a marketing ploy of manufacturers, and both automobile and motorcycle engine oil for four-stroke engines can be suitable for a lawn mower. It is enough just to follow the basic rules:

The oil must be mineral or semi-synthetic. Fully synthetic oil can burn the engine, so it is best not to use it at all. A lot of sludge is generated when the mower is running on mineral oil, so we advise you to opt for semi-synthetic oil. In addition, mineral oil is difficult to find today.

The viscosity of the oil should not exceed SAE 30 or 10w30, and the quality category should vary between SE and SJ. viscous oil can disrupt engine performance, however, less viscous oil can also be affected. All these indicators are necessarily indicated on the packaging.

Select oil based on operating temperature conditions. If you mow in cold weather, the viscosity of the oil may be higher than the above, but the next time you turn on you will have to change the oil to the correct one.

In lawn mowers with four-stroke engines, oil is poured into a special crankcase and is never mixed with gasoline, since the design of such a gas mower does not imply a mix of oil and fuel. On the contrary, it can cause engine damage. It is enough to change the oil once a season, since the crankcase usually holds from 450 to 600 ml of oil. this is enough for processing large areas. However, do not be lazy to check the oil level before each use of the tool.

How oil is used in two-stroke lawn mowers?

Typically, the two-stroke engine is mounted on grass trimmers, and since they are designed with no unnecessary parts, there is no separate oil container. What should be done in this case? Prepare the fuel mixture: The same rules apply for two-stroke lawnmowers as for their larger counterparts, with one exception. oil must be purchased for two-stroke engines.

Each trimmer (or instructions for it) indicates the mixing ratio of fuel and oil: from 1:32 to 1:35. This rule is only valid for mineral oil! And since it is quite difficult to find it now, and it can scare off the cost, semi-synthetic or even synthetic oil is most often used. Please note that the mixing proportions in this case change, and become. 1:50. If in doubt, carefully study the packaging of the oil, it usually contains these data. You should focus on them. To prepare the mixture, it is enough to pour in 100 ml of oil into five liters of gasoline, this should be enough for a whole season of regular mowing. If not, repeat the procedure.

What gasoline to pour into the lawn mower?

What kind of gasoline should I put into my lawn mower? This question often arises from the new owners of this equipment. As a rule, this information is presented in the technical documentation of the device, but it is worth knowing about the possible options.

The type of gasoline to pour into the mower depends on the type of engine. It can be two- or four-stroke. Consider the features of both motors.

The process of preparing fuel is quite simple: as a rule, for mineral oils, the ratio to gasoline is 1:32. 1:35, for synthetic. 1:50 as indicated on the package.

To keep your petrol lawnmower with fuel for the entire season, you only need to hover it once. To do this, take, for example, a five-liter canister and add 100 ml of oil to it. If this amount is not enough for you, repeat the procedure again.

What gasoline to fill in a lawnmower with a four-stroke engine?

Now let’s tell you what kind of gasoline to pour into a lawnmower with a four-stroke engine, the main difference of which is the presence of a crankcase. It contains oil for lubricating the engine, therefore, for this type of apparatus to function normally, it is enough to fill it with gasoline only. However, there are some peculiarities here. Since the equipment does not have an oil filter, which means that it cannot be cleaned, it must be changed approximately every 50 hours of operation.

As for the gasoline that you need to refuel the mower, it should not be of a higher grade than that recommended by the manufacturer of the equipment. Since the higher the octane number, the longer the fuel burns. This, in turn, can lead to significant problems and premature tool failure.

Everyone knows that gasoline is a highly flammable substance and its vapors are explosive. Based on this, we recommend that you always follow a few simple rules that will ensure the safety of each user:

Allow the engine to cool before refueling.
Fill in only 92nd gasoline (not lower);
Do not work with fuel if there is an open fire nearby, and smoking is also prohibited.
To avoid exhaust gas poisoning, refuel and start up outdoors or in a well-ventilated area.
It is not recommended to fill the tank completely, it is imperative to leave room for the “expansion” of gasoline, which always occurs when it heats up.
Avoid getting fuel on your clothes and shoes.

In general, the maintenance of the gasoline engines of the lawn mower. quite a simple matter that does not require any special knowledge and skills from you. For units with a two-stroke engine, you need to learn how to properly prepare the combustible mixture, as well as clean the air filter in a timely manner. For machines with a four-stroke engine, it is enough to change the oil annually and clean the air filter so that it will serve you faithfully for many years.

It is profitable and convenient to cooperate with us, because we:

If you still could not decide which gasoline to pour into the lawn mower, ask your questions to our specialists by phone: 7 (495) 135-29-39 every day from 10.00 to 20.00. They will provide all the necessary information completely free of charge.

How often do you need to change the lubricant?

As noted above, the operating instructions for garden equipment with a 4-stroke engine must indicate the frequency of oil changes. But if there are no instructions, then they are guided primarily by the number of hours that the equipment has worked (engine hours). Every 50-60 worked hours, you need to change the oil in the engine.

However, in the case when the plot is small and you can process it in no more than one hour, it is unlikely that for the entire spring-summer season the lawn mower will work even half the operating hours of the norm, unless it is rented out to neighbors. Then the oil must be replaced when the equipment is preserved in the fall before the winter period.

Features of the four-stroke engine

Lawn mower gasoline engines are divided into two groups: two-stroke and four-stroke. Their difference in the way of filling the oil is as follows:

a lubricant for two-stroke engines must be pre-mixed with gasoline in a separate container and in a certain ratio, mixed thoroughly, and only after all this it must be poured into the fuel tank of the car;
lubricant and gasoline for four-stroke are not pre-mixed. these fluids are poured into separate tanks and work separately, each according to its own system.

Thus, a 4-stroke engine has its own pump, filter and piping system. Its oil system is of a circulation type, that is, unlike a 2-stroke analogue, the lubricant in such a motor does not burn out, but is supplied to the necessary parts and returned to the tank.

Based on this circumstance, the requirement for oil is also special here. It should retain its properties for a long period, when, as for the lubricating composition of a two-stroke engine, the main quality criterion, in addition to the basic properties, is the ability to burn without a trace, without leaving carbon deposits and deposits.

Change of oil

Changing the lubricant in a lawn mower engine is not as difficult as changing the oil in a car. Everything is much simpler here. The algorithm of work is as follows.

Prepare enough fresh oil for replacement. Usually, no more than 0.6 liters of oil is poured into the lubrication system of many lawn mowers.
Start the unit and let it idle for a few minutes to warm up the oil so that it becomes more liquid. This promotes better drainage.
Switch off the engine and place an empty container under the drain hole from the crankcase to collect the used oil.
Unscrew the drain plug and allow all the oil to drain. It is recommended to tilt the device (if possible or advisable) towards the drain.
Screw the plug back into place and move the machine to a level surface.
Open the filler hole on the oil tank and fill it to the required level, which is controlled by a dipstick.
Tighten the tank cap.

This completes the process of replacing the lubricant, and the unit is again ready for operation.

Lawn mowers have long taken their place among the necessary equipment among the owners of country and private houses, as well as employees of park facilities. In the summer, this technique is used quite intensively. For the reliable and durable operation of lawn mower engines, the quality of fuels and lubricants, in particular oils, is of great importance. Oils for 4-stroke engines of this type of gardening machines are described in this article.

Why do you need lubricant?

Due to the engine oil that enters the engine and covers its rubbing elements with a thin layer of oil film, the occurrence of scratches, scoring and burrs on the metal surface of parts practically does not occur on new units.

better cooling of the engine and its parts, which prevents overheating and thermal shock;
engine operation is guaranteed at high loads and with a long time period of continuous grass mowing;
the safety of internal engine parts from corrosion is ensured during seasonal equipment downtime.

Selection recommendations

These oils are recommended as the optimum lubricant given the seasonality of lawnmower use. It is unlikely that anyone would come up with the idea to “start” a lawn mower at a negative temperature outside the window.

In the absence of specialized oils, you can use other classes of oils used for cars. These can be grades SAE 15W40 and SAE 20W50, which are also used at positive temperatures, but only their threshold is 10 degrees lower than specialized ones (up to 35 degrees). And also for 90% of the available models of four-stroke lawn mowers, the oil of the SF composition will do.

And in order not to guess what oil to fill in the engine of your mower model, it is better to look at the instructions. The required type of oil and the frequency of its replacement are indicated there. It is recommended to use only the types of oils specified by the manufacturer until the expiration of the warranty repair period, in order to maintain the issued warranties. And then pick something more affordable, but, of course, not inferior in quality to branded oils. You should not save on oil quality.

What kind of oil should not be poured?

Do not fill the four-stroke engine of the lawn mower with lubricant intended for two-stroke analogs (on the labels of oil containers for such engines, the marking “2T” is put). However, you cannot do this and vice versa. In addition, it is unacceptable to fill in the liquid that was stored in plastic bottles from under drinking water.

This polyethylene is not intended for storing aggressive substances in it, therefore a chemical reaction is possible that affects the properties of both lubricants and polyethylene.

For information on how to change the oil in a four-stroke lawnmower, see the following video.

Engine oil MTD (MTD)

Classification of motor lubricants for garden equipment

Oil for 2-stroke gasoline engines, eg “MTD” API-TC. It is intended for the lubrication of engines as a dissolved component of the fuel mixture. It is used in many types of garden motor vehicles. trimmers, chainsaws, lawn mowers, etc. The use of this high quality product greatly extends the life of the motor.
“Synthetics” for 4-stroke gasoline engines. type SAE 10W-30 provides excellent lubrication of rubbing parts and increases the resource of the gas engine, while having good anti-corrosion properties.

Why you can’t use four-stroke oil for two-stroke gas engines

A two-stroke engine is usually lubricated with a product dissolved in the fuel, which must burn with it as completely as possible. In a four-stroke engine, the lubricant must protect the rubbing surfaces and not get into the combustion chamber. Based on these prerequisites, various additives are used. If you use a four-stroke “synthetics” in a two-stroke gasoline engine, then it will not completely burn out. Carbon deposits will appear on the cylinder walls and spark plugs. During operation, an abrasive powder is formed from the carbon deposit, which destroys the cylinder mirror and the piston. The engine is rapidly losing its resource and power. The engine life is also reduced due to the appearance of glow ignition and detonation, and soot accumulating on the spark plug electrodes leads to a short circuit and a complete stop of the motor.

Features of use

What kind of oil is better to pour into the engine

Two-stroke “synthetics” are mixed with gasoline in the proportion specified in the operating instructions, and the four-stroke is poured into a special container (crankcase) of walk-behind tractors, cultivators, etc.

What kind of oil to pour into the lawn mower?

The most important organ of any lawn mower is the engine. In the electrical unit, the motor runs on the mains, in the battery pack. on the battery. The most popular mowers are equipped with gasoline internal combustion engines, which can be 2- or 4-stroke. Each of them consists of a large number of parts and mechanisms that are in a state of continuous friction. This leads to heating of the elements and their rapid failure. This is exactly the problem lubrication is designed to solve.

The oil application method depends on the type of gasoline engine. Two-stroke lawn mower oil is added to gasoline and mixed with it in the proportion specified by the manufacturer. For example, if the ratio of 1:25 is indicated in the operating instructions for the equipment, then this means that 40 ml of engine oil must be mixed with 1 liter of gasoline. In the ICE of the second type, 4-stroke lawn mower oil is poured into a separate tank through the neck provided in the design. The amount of lubricant used depends on the volume of the tank, and a special dipstick is attached to the bottom of the filler cap to determine the level of oil in the tank.

What Is The Best Oil For Lawnmowers | Small Engines

The quality and composition of the lubricant used plays an important role in the continued operation of the mower. 4-stroke lawnmower oil is a common automotive lubricant. Such a fluid is not suitable for servicing units with 2-stroke internal combustion engines, since in this case there is a risk of accelerated wear of the mower piston group. due to its composition, automobile oil does not mix with gasoline, as a result, poorly washing the walls of the piston and cylinder. When choosing a lubricant for 2-stroke engines, preference should be given to specialized fluids that meet several criteria:

low ash. in the process of fuel combustion, ash accumulates on the surface of the cylinder of a 2-stroke internal combustion engine, acting as an abrasive. In the future, the accumulation of ash leads to gradual damage to the walls of the metal parts of the lawn mower motor;
Fully Combustible. The 2-stroke lawnmower oil must be fully combusted. In addition, it must mix evenly with gasoline to form a homogeneous composition;
suitable viscosity. during the operation of the mower, the oil should form a thin but sufficiently strong film on the walls of the internal combustion engine parts. Thanks to this ability, the lubricant reliably protects lawn mower engines from increased wear. It is important to remember that 2-stroke engine oils are split seasonally. You cannot use winter lubricants when servicing the lawn mower, as they are emitted by a low viscosity. Such liquids are not capable of forming a protective film.

Many novice users prefer to mix a large amount of fuel for the future. However, this is absolutely impossible to do. The mower should only be serviced with fresh gasoline and lubricant. A fuel mixture that is stored for more than 1 month becomes unusable, since after this time the components of gasoline and oil react, losing their original properties.

Repair and maintenance of gasoline lawn mowers

Caring for lawn mowers with gasoline internal combustion engines includes a certain number of measures aimed at protecting the unit components from premature wear.

The mandatory procedures include:

use of the highest quality gasoline and engine oil. Users should remember that a lawn mower motor needs constant lubrication. Without it, even the most hardy internal combustion engine will quickly overheat and fail;
replacement of filters and hoses. filters and fuel hoses are included in the device of gasoline mowers, which gradually become clogged and fail. It is best to use gasoline and compressed air from a cylinder to clean them. In case of severe wear, filters and hoses must be replaced;
timely inspection and replacement of parts of the cutting system. no matter what mechanism is included in the design of the mower, rotary or drum, its parts must work as smoothly and stably as possible. The user is required to constantly monitor the condition of the elements of the cutting system, sharpen and level the edges of the blades or change the knife, if necessary;
maintenance of the drive system. most often a belt drive is provided in the device of the unit, which, as a result of prolonged operation, stretches and breaks. In this case, do-it-yourself lawn mower repair comes down to replacing the belt and tension rollers;
elimination of vibrations and squeaks. over time, many lawnmower users are faced with vibration that appears 1-2 years after the start of operation of the machine. The reason for this is the loosening of the bolts. Solving this problem with your own hands is quite simple. for this you just need to tighten the bolts.

During the operation of the mower, it is important to regularly inspect the body of the machine. If it is made of metal, then sooner or later, corrosion centers will appear on its surface. In this case, the operator must immediately remove the rust and paint the problem area with paint.

Lawn mower maintenance

The service life of any lawn mower depends on its correct and timely maintenance. The care of the unit is described in detail in its operating instructions. Compliance with the recommendations specified by the manufacturer will help to maintain the operability of the main units of equipment and avoid the need for expensive repairs.

Sharpening the lawn mower knife

Operating a lawn mower with blunt blades severely injures the lawn, which makes it dry and “sore” for several weeks. In addition, cutting the grass with insufficiently sharp blades increases the stress on the engine and drive system of the mower.

Depending on the configuration of the lawn mower, its blade can be in the form of a regular blade plate or a composite one. In the latter case, the upper part of the element serves for mulching the grass. In the mower device, the knife can be attached with one or two bolts. To remove the cutting element, the fasteners must be unscrewed counterclockwise. After removing the knife, you can proceed to its inspection and sharpening.

The need to sharpen a lawn mower knife is indicated by the presence of a “file” and chips on the cutting blade, which impair the quality of the cut of the grass cover. In addition, knives with a rounded descent lend themselves to restoration. they severely injure vegetation and become dirty faster.

Sharpening the cutting blades of the mower is best done with an emery bar with a grit of 400 to 600 grit. Before handling the knife, the bar must be soaked in soapy water. After that, in the course of sharpening, the bar will need to be moistened in the same solution every 10 minutes. In order to sharpen the knife efficiently and evenly, the bar must be pulled from the center of the site towards its edge.

After sharpening, the blade must be corrected. To do this, the user will need moisture resistant sandpaper with a grain size of up to 800 grit. The purpose of dressing is to remove burrs and other defects on the surface of the knife. To do this, the sandpaper must be pressed against the outer plane of the existing descent and made several smooth movements from the grain. In this case, the paper should gradually move from the center of the area to the edges.

Maintenance rules for mowers with electric motors

Electric lawn mowers do not require complex specialized maintenance. However, users of units of this type also need to inspect and timely replace defective parts in the motor design.

regularly check the voltage in the network. it must correspond to the parameters specified in the operating instructions for the equipment. If the voltage is greater or less than the required one, then the user must temporarily stop operating the equipment or use stabilizers;
inspect the power cord and plug. they must not be mechanically damaged. Otherwise, the mower will need to be repaired. replacing the cable;
check the operation of the power button. for this you need to disconnect it and test the operation of the button using a special device;
inspect the capacitor for swelling or oxidation of the contacts;
check the electric motor. for this you need to remove the unit housing and visually inspect the motor winding or check its integrity using specialized instruments.

Lawn Mower Oil Guide: What Type of Lawn Mower Oil Should I Use? | eReplacementParts.com

Most often, a multimeter or tester is used to check the mains voltage and the health of the winding. In the event that a breakdown occurs in the field, the operator can use a conventional indicator screwdriver.

Sources:

http://electromax.com.ua/articles/instrukcziya-zapusk-i-obkatka-4-x-taktnyix-dvigatelej
http://ecommercemarket.ru/blogs/post-617-kakoe-maslo-lit-v-gazonokosilku/
http://www.sadovnik-shop.ru/article/kakoj_benzin_zalivat_v_gazonokosilku/
http://stroy-podskazka.ru/gazonokosilki/s-4-taktnym-dvigatelem-masla/
http://www.kosilki.net/katalog/masla-motornye/
http://pro-traktor.ru/gazonokosilki/obsluzhivanie.html

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