How to assemble a gasoline gasoline properly. How to assemble a gasoline trimmer for grass (collect a lawn mower)

How to assemble a gasoline trimmer for grass: the procedure and video instructions

As a rule, devices designed for mowing grass and similar to them are quite bulky.

The vast majority of trimmers of any type are delivered in disassembled form, packing in a cardboard box, so before starting work, such an apparatus must be assembled.

In addition, a trimmer for grass often has to collect after winter, because some of the owners disassemble this device so that during storage it takes less space.

What is the assembly of a lawn mower?

The assembly means the connection of fully functional devices and assemblies, that is:

  • motor with control and clutch elements (only gasoline);
  • drive shaft;
  • pens or handles;
  • protective casing;
  • shoulder belt or suspension system.

Tools and fasteners

The set of each apparatus, regardless of its type, includes standard fasteners and a universal tool.

The shape of the heads of all bolts, regardless of their diameter and length, corresponds to the instrument that is included in the set of the trimmer for grass.

In the case of loss of some kind of fastener element, select its full analogue, if this is not possible, then you can neglect the shape of the hat, but all other parameters, that is:

However, such an incomplete analogue will force you to use, in addition to the full.time, an additional tool is also not too convenient. If you have lost a full.time tool, then select the closest analogue or buy the same device in any store selling trimmers.

Process description

The assembly process is described in detail in the instructions for the operation of each device, and the shape and configuration of finished blocks in most cases do not allow them to connect them incorrectly.

The main condition for the correct and fast assembly is the correct arrangement of the blocks relative to each other, as well as the combination of their holes.

How To Install String on a DR Trimmer Mower

Devices with an upper engine is more convenient to collect on a table where all blocks can be placed in the order of their docking.

Poulan Pro String Trimmer Line Replacement, Repair #952701682

Where the details connect several bolts, act like this:

  • Place both elements as they will have to look in a collected state (when assembling a gasoline trimmer for the grass, put the motor on the table with a clutch, then install the shaft with gearboxes on it, the upper of which is the protection of the clutch bowl);
  • Combine holes;
  • Bait one bolt by twisting it at 2–5 revolutions;
  • make the following bolts;
  • Press the details to each other to make sure that they are correctly located;
  • Twist (do not tighten) all the bolts in turn the cross on the cross;
  • Make sure again that both blocks are located correctly;
  • Tighten all the bolts with the required effort (indicated in the operating instructions) in the same order, that is, the cross on the cross.


The most convenient is the installation of primarily the largest blocks, that is, the engine and the drive shaft, then the handle and the protective casing are attached to this design, and lastly the cutting tool is put.

If the device is supplied with a disassembled shaft, that is, a gearbox and clutch are not installed on it, then start the assembly with the shaft, because it is the most overall detail.

When assembling the shaft, be sure to combine the lubricants on it and gearboxes, because the lack of lubrication will quickly kill the shaft. In addition, combine the slots on the rifle rod and gearboxes, if this is not done and the details are planted through force, then you can damage them.

Be sure to check the presence of lubricant in gearboxes and a drive shaft, because despite the assurances of the manufacturer that all the elements are lubricated and ready to work, this is often wrong.

Chinese manufacturers of cheap technology sin especially often in this. If the shaft is delivered with gearboxes, then spend a little time to disassemble them to check the amount of lubricant. it is much cheaper to do this before the first launch than to change the drive shaft in a few days or buy a new trimmer for grass.

In addition, we recommend lubricating gearboxes and shaft, as well as change oil in a four.stroke motor before each season start.

Do not forget that the lower gearbox and the mounting of the handle should be properly located on the drive shaft so that the gear shaft is directed down and the handle is directed upward.

On all devices with the rear engine, the handle is the team and consists of:

First fasten the connector to the shaft, then insert both handles into it.

Some models of trimmers are equipped with handles with a connecting sleeve, in this case:

Remember. the location of the handle and the angles of inclination of the handles are adjusted to the operator, so if you experience discomfort when working with a motorcycle or benzo.cosa, then adjust these details for yourself.

The right handle is designed to install engine control elements, so for right.handed it is put on the right side. If you are left.handed, then put the right handle on the left side.

Lastly, collect a cutting tool. Use exactly those protective washers and cups that correspond to the selected tool.

If you install other protective elements of the gearbox, then strong vibrations may occur due to impaired balancing.

If it is more convenient for you to collect a trimmer for grass in some other sequence and you do not make mistakes, then do as you are used to. After all, this or that order is designed to facilitate the assembly, but is not mandatory.

Description of the assembly process

The electric lawn mower consists of:

  • The frame on which all functional elements are installed;
  • Engine providing rotation of the working part of the mowing;
  • Knives carrying out herbs;
  • A casing that protects the operator’s legs;
  • Wheels that allow you to move the lawn mower around the site during operation;
  • Control handles that give control over the device;
  • Fragments of the power system, which include an RCD (a protective shutdown device) and a cord with a fork.

The device of an electric lawn mower includes unnecessary details that are stored in the garage or shed

We make a frame

To make a lawn mower with your own hands, you will first need a frame:

  • Insert a special crown into the drill and drill the desired opening. But such a nozzle is not cheap, and buying it specifically for solving the only described problem is irrational;
  • Inhale the circumference of the holes with an ordinary drill for metal, and then knock out the circle formed inside.

We select and install the engine

Homemade electric lawn mowers can be equipped with motors that can be found in the household:

I recommend using an asynchronous engine from a washing machine. He is able to work for a long time without a break, and at the same time makes a very low noise level.

Asynchronous engine device allows it to work for a long time and relatively silently

The power and number of revolutions should be selected in accordance with the length of the installed knives. So, for example, the following parameters will be enough to capture at 400-500 mm:

If the knives are shorter, then the motor will require more powerful and with a large number of revolutions performed per minute.

It is also worth paying attention to the mount:

  • Put it in the starting position on the plate of the frame;
  • Mark the fasteners;
  • We drill them using a drill;
  • We fasten the motor with bolts.
  • We install two corners from the side of future handles, directed vertically upward at a distance from each other equal to the distance between the ears of the motor mounts;
  • We drill holes in them;
  • Put the engine in the starting position and fasten it to the corners with bolts.

You can improve the usual engine mounting system. To do this, just drill several holes in the corners at different heights. Then, if necessary, the motor can be lifted or lowered, thereby changing the height of mowing grass.

make and fix the knives

For a knife, if the lawn mower is made with its own hands, a hacksaw canvas on a wood with a thickness of 2 mm is perfect.

The hacksaw canvas for wood is enough, so as not to stupor quickly, and not core, so as not to fly up with the slightest contact with possible garbage

assemble, gasoline, properly, trimmer

Therefore, take into account the features of your site when choosing this parameter.

To ennoble the well.groomed lawn, on which the presence of garbage is excluded, you can make thinner knives

The instructions for turning the hacksaw into the working part of the lawn mower look like this:

  • Cut the canvas in accordance with the size of the frame. In our case, it is 400 mm;
  • We drill a hole for the engine shaft in the middle or pierce the punch;
  • We pull the edges from the opposite sides in accordance with the rotation of the motor;

If for each half of the knife, bend along the cutting edge of the side, as is done in factory models, then during the operation of the device, mowed grass will blow out from under the gas mowing.

The principle of operation of factory knives, thanks to the bent edges, resembles a rotation of the helicopter blades

For fastening, be sure to use a puck-groover and a counter-player, otherwise the blades will be unscrewed from the vibration and fly off the shaft.

To protect the shaft and the bearing from the garbage, you can install the simplest tin can

We attach a protective casing

The protective casing is a metal strip touched into a ring and installed under the frame around the knives. Thanks to him, the operator’s feet are not threatened by either the garbage departing from under the gas mushroom, nor accidentally unscrewed and jumped knives from the shaft.

The steel casing will reliably protect your legs during operation of the lawn mower

Making the frame

At the first stage of the independent manufacture of mowing for grass, a frame base is performed for the location of the motor part. For the frame, you can use a relatively thick plywood, but the best option will be a metal sheet with minimal indicators of 3.0-3.5 mm thickness. Such material has good resistance to any deforming effects.

Lawn mowed with a metal frame

The dimensions of the frame are determined taking into account the length of the knife and the width of the unit, but the most convenient in operation is a lawn mower of a size of not more than 0.5-0.6 m. For manufacturing, it is necessary to cut a square element from the sheet material, the sides of which correspond to the width of the manufactured device. In the central part of the workpiece, you need to make a hole for installing a motor.

It is necessary to fix the flange engine to the frame base with the direction of the shaft down, and the “ears” of the motor allow you to perform additional fastening to the unit frame.

Preparation of the correct fuel mixture

Before starting to run the new engine of the lawn mower, you must also prepare the fuel mixture correctly. As you know for two.stroke engines, it is prepared from special two.stroke oil and gasoline, taken in certain ratios. You can find out proportions from the instructions attached to the tool, or on the labeling label. From the instructions you will also learn the recommended type of fuel, as well as the recommended type of motor oil.

Currently, it is a total of 22 models of pumps that differ in their power, expenses, pressure of the absorption of depth and height. Hydropher systems are used to automatically control the pump depending on the flow of water. They have the same application as mechanical pressure pumps. wherever it is necessary to provide a continuous flow with a constant flow of water. Typical accelerators are also that smooths out the inevitable orientation of the water jet when starting and stopping the pump.

The hydrophore system is a water pump, the pressure nozzle of which is connected to the high.pressure airtight metal vessel. The most commonly used technical solution is its interior is divided on a flexible rubber membrane, thus forming two spaces. one is filled with water and the other is closed by air. Excessive pressure is associated with air space of hydrophore.

Cook fuel in small quantities sufficient for one mowing grass. Use special canists made of plastic for fuel, or a separate glass or metal dishes. It is best to type oil with a medical syringe.

Having gathered to run into a new lawn mower, many are faced with the problem in the preparation of the fuel mixture. And the reason for this is the disagreement in the instructions of the tool manufacturer and in the instructions of the manufacturer of motor oils. The first recommend a 1:25 proportion. The latter recommend 1:50. Who to believe? How to proceed?

The pump is supplied in the line water with certain pressure, which begins to grow when the amount of water that is absorbed becomes less than the flow of the pump or the water fence stops. Upon reaching the specified limit pressure of the air, the pressure relay turns off the pump, and the water in the water line remains under the pressure of compressed air. When the tap is opened, water first flows under the influence of this pressure. For this reason, since the volume of the tank is greater than the smooth system will work, and the pump will be less frequent.

When the lower limit of a given pressure is achieved, it includes the pump and begins to supply water to the system. The method of hydrophore operations softens the inevitable sudden changes in water pressure when the pump is turned on. This type of pump is intended for houses and other objects, the water supply of which is provided from its own source. The pressure sensor automatically turns on and off the pump depending on the pressure of the water supported in the pipeline. When it falls due to the drain of water, the pump turns on and goes out as soon as the pressure exceeds the given value.

According to experts, if in the instructions for a motorcycle, manufacturers write a proportion of 1:25 or 1:30, then it is most likely a cheap tool with poor cooling, or the manufacturer does not know what kind of oil will be added to the consumer. But here it must be understood that the excess of lubricant does not affect the performance of a trimmer for grass in the best way. Excess oil does not completely burn out when operating the engine. It cokes, clogs a cylinder and piston.

This solution successfully replaces the classic hydraulic system with more complex maintenance and larger sensors. Automated control also greatly facilitates the provision of the required amount of water, saving water and electricity. In addition to residential, production, livestock and other facilities, electronic control pumps are also suitable for irrigation plants.

The pump body is made of stainless steel. This type of pump, also called whirlwind, is used to pump only pure water. The presence of solids can easily turn off them. Their positive aspects. The low cost and high height of the water column reached by one workplace, as well as a lightweight deaureation of the suction line. The first has an electric motor 370 watts, and the second. 500 watts.

What to do in this situation when running in a new tool? An ideal option would be to purchase exactly the oil that the manufacturer of the lawn mower recommends. In the case of engines, when it is not possible to purchase the recommended oil, it is best to purchase a good Husqvarna two.stroke oil for the same gas tool. It costs not cheap, but there is enough it for a long time. It is necessary to interfere with it as it is written in the instructions on the bank.

They are usually designed to pump pure water, but also have a certain minimum solid particles. To absorb water, absorbing fishing line for a trimmer and the pump must be filled with water. They are mounted in a dry place protected from dust. Its significant advantage is that it is cheaper than multi.stage centrifugal pumps with similar parameters.

In addition, dehydration of the suction pipe is greatly facilitated. At the same time, due to the small diameter of the hole of the ejector, this type of pump is more sensitive to the presence of solid impurities in water, which may cause its clogging. These types of pumps have recently been widely spread because they are extremely convenient, t.e. Practical and universal. They are equally successfully used to empty water pools and decorative lakes, underwater water shafts, drainage basements and other rooms, emptying drainage mines, pumping water from a deep well, etc.D. They have a waterproof structure and, as the name can be seen, work on the water.

Remember, it is best to use the proportion that the oil manufacturer gives. But is that proportion that is written on a spit is better to find out by experiment. If, with a trimmer recommended by the manufacturer for grass, the proportion of the engine sniffs with oil and the subteids are visible on it, then the proportion must be increased.

The first launch of a trimmer for grass

When everything is checked and the prepared fuel mixture is flooded into the tank, there comes the moment of the first launch of the trimmer for the grass before its rolling. To do this, you need to perform the following manipulations:

Some pumps have a float switch with a switch that turns off the power supply from the electric motor and, thus, prevents its combustion in the absence of water. Some pumps are designed to work only with clean water, others are specially designed for pumping heavily contaminated water, and some are designed to work with clean and contaminated water. To facilitate the choice of a proper pump, the most important technical data for submersible and other pumps are collected in tables.

In clean water, the pump is able to suck water until a layer is left up to 4 mm thick. This makes him an indispensable assistant when collecting water in emergency floods. For this purpose, the pump has three feet, which are folded under the case to provide a minimum suction depth. At the same time, water containing solid impurities with a diameter of up to 30 mm can be absorbed and produced. In drainage mode, it is designed for drainage of small construction sites, underground floors, basements, garages, etc.D.

  • Place a motorcycle on a flat horizontal surface;
  • We move the air damper control lever to the position closed;
  • We pump up the fuel in a carburetor with several pitching of the primer;
  • Turn on the ignition toggle switch;
  • Smoothly pull the launch cord until you feel resistance;
  • After that with a cord 3 4 sharp jerks, until the lawn mower should be launched;
  • After starting, open the air damper.

If the lawn mower does not start or staller the first time, slightly open the air duct damage on the carburetor and try to run again.

As a pump for pumping clean water, the drainage of the premises in the case of internal accidents, when the water is transferred from one tank to another, etc.D. In addition to low prices, the purchase of such a pump often comes out more economically, because you can successfully replace two more specialized. clean or clean water. And when it is necessary to drain the room, this type of pump has no alternative.

This type of pump is very sensitive to the presence of solid inclusions such as sand, and therefore it should be used to pump pure water. It comes with four nozzles, each of which gives a different shape of a jet of water. The power of the electric motor is 50 watts.

The main malfunctions of the starter of the trimmer for grass

It is not difficult to determine the cause of the breakdown of the trigger. There are several main options:

The given details are shown in the photo below.

assemble, gasoline, properly, trimmer

It may happen that the starter mechanism is accidentally broken. The consequences will be destructive if the rope is torn wound around the flywheel of the working internal combustion engine: then the spring bursts, the pulley will break. But such cases when a complete replacement of the starting device is required is extremely rare. In most cases, it is enough to install a new spring or replace the cord to fix the mechanism.

Spring tension

By installing the spring, tighten it. To do this, follow the following actions:

  • Remove the handle from the cord;
  • Then the rope is inserted into the groove of the coil;
  • Pull the spring, rotating the coil in the opposite direction of the clockwise (winding)
  • Make the required number of revolutions specified in the instructions for the operation of the used model of the trimmers, and the corresponding length of the cord used;
  • At the very end, the rope is at the bottom into the hole provided for this, located in the starter cover;
  • Put the handle in place, fixing it with a knot.

If after the repair the spring continues to fly away, you can get rid of it in the following ways:

  • Close a piece of the plate of the corresponding size in the groove at the location of the spring hook;
  • Drill holes on both sides of the grooves in the coil, into which insert a spring hook and fix it with wire.

How to remove the coil and replace the fishing line for the trimmer

The owners of the trimmer for grass, mostly beginners, are confused, the boundaries with panic, when it becomes necessary to change the cutting tool or fishing line for the trimmer in the coil. Too often, when trying to unscrew the lawn mowing head, users simply make it unsuitable for use, not suspecting that it is unscrewed in the opposite direction to avoid this, if you need to replace the tool, it is recommended to read instructions below.

  • Before inserting a fishing line for a trimmer into a coil, turn off the booster engine or turn off the electric trimmer for the grass to avoid injuries that may occur if the cutting tool accidentally begins to rotate.
  • Unscrew the attached nozzle of the transfer shaft. To do this, fix the shaft, combining the openings on the puck and on the axis and inserting a metal rod or screwdriver.
  • Unscrew the nozzle. You should know that the thread on the shaft remains. Therefore, turn the coil of the trimmer for grass to the right, that is, clockwise.
  • Disassemble the mowing head. Most often the main cover is attached on the clips. To remove it, you will need to lower these clamps onto the case, squeezing the edges of the lid. If your trimmer for grass has a semi.automatic mower with a button below, carefully disassemble the nozzle, as you can lose a spring that sometimes pops up when removing the cover.
  • Cut the required amount of fishing. Usually its length is 5 meters. Use the cord with the diameter indicated in the instrument guide. It is not recommended to exceed the maximum diameter of the mowing fishing line, as this will increase the load on the engine and increase the gas mileage.
  • Find the middle of a piece of cord, folding it in half. You will get a loop.
  • Cut the coils of special grooves (there may be holes). Insert the loop of the fishing line into this groove.
  • Wind a fishing line for a trimmer to a coil, turning it counterclockwise. It is necessary to fill the cord as evenly as possible, the turns should be carried out without ceiling and with good tension. After the winding is completed, leave the free ends of the fishing line about 20 cm long and fix them in grooves on the sides of the coil.
  • Collect the mowing head. Before you finally collect the nozzle, do not forget to insert a spring and washer (if available). Insert the coil into the housing and push the ends of the cord through the holes or eye.
  • Put on the lid and fix it with latches.
  • Screw the nozzle back to the gear shaft, also fixing it with a screwdriver. Turn the coil of the trimmer for the grass to the left (counterclockwise).

My own version of the lawn mower with your own hands.

All those who have money for a factory lawn mower please! This is for those who feel sorry for the money for the lawnical mower and for those who like to craft. Here is my version.

So. There is a yard, covered not with tiles, not a paveant, but in grass and summer it grows and becomes unsightly. Taking a trimmer for grass and squinting the grass, but I don’t know how to mow or something else, but not. On the Internet I saw a lawn mower with my own hands from the engine from the washing room. cheap and cheerful! For me the most. Having gathered this miracle from a scrap metal came to delight, everything works and mows evenly, this is the result that I wanted. And the main thing is not killed. Here is my first option, so to speak for a test.

The motor from the washing room, the pulmonary fiction on the pulley polypropylene put down and drilled the hole through the hole, wanted to put the bolt, but it also turned out tightly, there the groove is on the pulley and plastic and went there with a staggering. A knife made of a simple piece of iron 3-4 cm wide and in a diameter of 35 cm. Paul knife at a height of 4.5 cm. There is enough motor for normal grass, on a very thick grass it stops. But after the first time passed, the second time has never slowed down anywhere else. The motor heats up, after the passage of 70 m2, let the motor cool so that it does not burn out. Mowed once a week. With mowing, the grass breaks all and turns out to be like mulching, you don’t even have to remove. But there are no stones on the site, so everything is fine.And now it’s time to ennoble it all and make a normal mower, since all the wooden wheels were loose on the wooden. Having collected all the details on the metal-receiving- the motor button, the trigger button, the wheels from the stroller, the disk 47050 mm saw, the iron barrel cover and a strip of iron and from the available profile 2020 mm and a piece of the pipe diam. 16 mm built the following miracle.

He also put on the skip with a soldering iron heating the fitting polypropylene and put on the skip, drilling through the hole with a bolt, he staggered a bolt, as the disk as a flywheel twists be healthy. Saw a saw through a 50 mm spacer. There is almost no beating diameter, but the top-down turned out to be 7 mm, well, not critical, there is no turning. The height of the grass of the grass also left 4.5 cm. The passage has increased, well, the mass too-16-17 kg. Due to the circular saw, it works like a flywheel, even with a thick grass, the disk slows down but does not stop due to inertia. All 180 m2 went with this engine and did not hench much. you can go without a break.

The result is this, I am satisfied, since the money was spent, well, the maximum of 500 works without complaints and copes with the set tasks with a bang. Something is simply not real.

21.06.2017, having worked as a lawn mower, did not understand for some reason not so beautifully as an old mowing. As a result, I thought to try to make a knife like an old. I made a woodcock from a canvas. After mowing, the result pleased me, but it is not clear why the saw disk does not give such a result, it is not clear. As a result, now I use the knife as in the picture and the result is different, spins in a fraction of a second, but it stops on the big grass, since there is no inertia like on the disk.

Principle of operation

If we consider the principle of the trimmer for the grass, then it looks like a manual braid. The difference is that it is equipped with an engine, with its help the cutting element is brought into rotation.

Producer companies produce the following models of mowers:

  • On which a gasoline engine is installed. Such garden tools have a fuel tank, this is their distinguishing feature.
  • Electric engine devices. These tools have less weight, because they do not have a fuel tank. But when choosing such models, you need to take into account that a power source needs their work to work.

All electric braids for grass can be divided into those that work on batteries, and models connected to an electric network. Each species has its own characteristics, but they affect the power supply unit. If you do not take into account it, then the rest of the design are similar in different devices.

If you take any model of a trimmer for grass, then it consists of such elements as:

  • motor;
  • fuel tank (electric motor does not have it);
  • levers with which the mowing is controlled;
  • knife for cutting grass;
  • barbell;
  • Spool with wound fishing line, which is cutting grass;
  • protective casing;
  • conical gearbox.

The engine is placed near the mowing head, it can be installed from below or from above. Only those models that have a direct bar with a gearbox. If it is curved, then the indigenous bearing becomes a connecting element. It consists of 2 bushings.

As a cutting device, a fishing line for a trimmer is used. It is easy to replace with steel knives and discs, they can be made of plastic or metal.

The choice of cutting element depends on how hard the grass will have to mow. Most often, the work uses a fishing line for a trimmer, it is called the cord. There are products of various shapes on sale, among buyers a spiral and round is in demand.

The fishing line for the trimmer is wound on the coil, it is inserted into the bobbin, while the 2 ends of the wire remain free. Когда двигатель косилки начинает работать, шпулька вращается, трава срезается свободными концами лески.

How to use a trimmer correctly

Garden trimmers for grass are effective. Newchers think that it is easy to work with a lawn mower, because you just need to include it in a socket or pour fuel, but this is not entirely like that.

The efficiency of the garden tool and its service life directly depend on operating conditions. Therefore, before using a trimmer for grass, you need to perform preparatory work.

The lawn with which you need to mow the grass is carefully examined. Be sure to remove glass and large stones. Having flew out from under a working mower, they can injure a person. They remove the wire from the lawn, because it can be wound on a rotating element, break a mower.

After that they move to the installation of the cutting system. There are trimmers for low.power grass on sale, which use only a fishing line for a trimmer. It is designed for mowing juicy and soft grass. But there are models with a capacity of more than 1 kilowatts on which metal knives are installed. They cut sowing and other hard weeds, trim the young shrub.

In order to replace the cord with knives, you need to unscrew the mounting nut, install the cutting element. Then the nut must be returned to the place, tighten it with the key.

The operator must take care of his safety. Mow grass in tight protective clothes. Special glasses are used to protect the eyes, they will protect from dust, grass and flying garbage. Hands are covered with gloves.

The electric trimmer for the grass is included in the network, and the battery models are charged for several hours before starting operation. Fuel is poured into a gasoline mower.

The mower is kept so that the spool or knife is located parallel to the ground. When the tool is installed in the correct position, the motor is included. After the grass is bewildered, the mower is turned off.

First start

Before the first launch, the operator collects a mower, the procedure is described in the instructions that are attached to the product.

If the trimmer for the grass is gasoline, it is necessarily checked before operation. The fuel tank is filled along the neck.

The motor should work for the fuel, so at the first launch it should work for several minutes without load. After that, start mowing grass.

How to refuel a benzotrimer

Motokos working on gasoline are with two.stroke and four.stroke engines. The first option is much more common. What are the differences between them:

  • in trimmers with a 2-tact engine, the response to press the inclusion lever is faster (for this reason the lawn mower is mainly equipped with this type of engine);
  • A tool with a two.stroke engine will be much easier, as well as easier to maintain;
  • Fuel consumption in a two-stroke engine is higher than in a 4-stroke with a similar power by about 30%;
  • The 4x-stroke engine is more environmentally friendly, since the fuel in it burns completely and is not thrown into the atmosphere, as well as its noise level is much lower;
  • And the most important distinguishing feature is the refueling: a 2x-stroke engine is equipped with one common tank, where gasoline mixed with butter is poured; 4x-tacte has a separate gas tank and a tank for motor oil.

For refueling, it is necessary to use fresh gasoline AI-92 or AI-95 and high-quality motor oil for garden equipment (for 2x- and 4-tact engines, manufacturers produce different oil). Oil can be used mineral, semi.synthetic or synthetic.

The proportion of gasoline and oil for trimmers with a 2x-tact engine can be found from the instructions for a specific model. Usually it is 50: 1, in some cases, proportions of 25: 1 or 40: 1 are recommended. Prepare the fuel mixture in a separate container with accurate observance of proportions. Never pour the liquids “by eye” directly into the tank without mixing them in advance. Detailed instructions for mixing a benzomalam, with video and description, can be found on our website here.


Before starting operation, gasoline braids are necessarily rolled up. The operator turns on the motor, he must work for a while at idle. It is necessary to ensure that the engine does not overheat, the load should not be.

When running in, motorcycles increase the load gradually. If you start work with high speeds, the motor will work well, this will affect the further work of the mowing.

At the first launch, you should not fully develop a temporary resource. After the engine works at idle, you can proceed to processing the lawn. The lawn mower should operate for no more than 15 minutes, after which the engine is turned off, it must cool down.

If you need to run the electrimmer, the braid is first collected. Then make trial launches at least 3-5 times. If the engine works well, go to mowing. At first they work for no more than 5 minutes, then the duration of work is gradually increasing.

How to wear a belt

If the tool has a shoulder mount, before starting work it hangs on the shoulder. The trimmer for the grass is fixed on both shoulders if it has a backbone mount.

The model with a bicycle handle is held with 2 hands, the D-shaped handle is wrapped in palm. The belt must be worn so that it is convenient, then the back will not get tired.

How to cut the lawn so that it turns out to be even

So that the grass on the lawn is trimmed evenly, it is necessary to lower the mower as low as possible during operation. The site must be divided into squares. You need to work, moving clockwise. In this case, the hay will always lie on the left without interfering under the feet.

Kosim under hay

It is better to mow hay not with a fishing line, but a metal disk. Grass is cut under the root, maintaining its length as much as possible.

Spinning high grass

If you need to mow high grass, this is done in several suits. The lawn processes 2-3 times. The rotating part is lowered from top to bottom, in which case the grass is not wound on the reel.

The operator must remember that the grass wound to the coil leads to overheating of the motor. If this happened, the motorcycle is turned off, and the coil is cleaned.

Most effective mow grass with the ends of the fishing line, and not the entire length. In the second case, the tool works worse, engine overload is possible. If you need to cut the grass on the site of a large area, to increase the efficiency of a trimmer for the grass, you must be tilted towards the mowing.

Features of the operation of a gasoline trimmer for grass

It is worth noting that such a trimmer for grass can work out a fairly long time with proper operation. In different sources, a photo of the repair of the lawn mower comes across, where it is described as much as possible as it is carried out.

Its main stages include the repair of the gearbox, or rather its timely grease, the fishing line for the trimmer should also periodically change and, finally, at the end of each work, check the teeth.

To carry out these simple actions, it is not at all necessary to contact specialists, since it is not difficult to do on their own.

But before starting to carry out repairs with your own hands, it is recommended to familiarize yourself with the annotation in detail, which is attached to any model of a trimmer for grass when buying. By the way, the parameters of the fishing line for subsequent replacements will be indicated there.

The device of the lawn mower

As already mentioned, you can fix some minor breakdowns yourself, but it is still important to understand how this tool is arranged. The main action of this device depends on the spinning shaft, thanks to which the twisting moment is transmitted to the corresponding drive, which is considered a power.

Further, such a rotation is transmitted to the installed gearbox due to the corresponding clutch mechanism. After that, the elements that are designed for trimming begin to cut the bushes and grass, and the speed of this process depends on the number of revolutions in a particular model.

Basically, all malfunctions of braids for grass that operate on gasoline are associated with one of the data of components.

Repair of the lawn mower. (changed, added).

So, dragged a benzo-cos, with symptoms: grasps but does not work.They pulled, her seals for about an hour. I say: Well, if, the maximum of the 5th time did not start, then the matter is clearly not in Babin, rather in the gasket.))).Sent deer behind beer. He said the repair price, they were compiled, although they twisted with nozzles for a long time))).

So. Disassembled. He made the Rotor’s shooter. Why do you need the Rotor’s shooter, but at least in order to remove the rotor normally. Those who write from “” Bat and nah shooter, I do not advise doing this: break the case, or the rotor will crack, bite the tsapfu or kill the tsapt carvings to death))).The procedure for detecting malfunctions in any benzoca or chainsaw:. check whether the spark is present. Should be strong and with smooth scrolling by the starter. If there is no spark, check the wires (on \ off), the candle itself and of course the short circuit itself. Often, due to broken bearings, the magnetic part of the coil sensor clings the rotor. When installing the ignition coil back, between the rotor and the coil magnet, put a piece of strip with a cut plastic bottle (to hold the gap), it should be in the rayon from 0.8 to 1 mm. But again, you need to look so that it does not catch the sensor. If even with a 1mm gap there is a shorting, then we change the bearings or the rotor itself (maybe a curve).Further, if the candle is constantly wet, this says that the carburetor shimmers! It is not advisable to climb into it (without knowledge). Everything is very fragile there and you can finally break firewood. It is better to replace with a new.

Do not start, grasps: often air leaks! We look at the intake pipe, he has it, almost from plastic! He is spinning over time, he cracks. Also pay attention to the integrity of the gasket, filter and the container itself, the case (there may be cracks).But the most common cause is the wear of the seals! It is not difficult to check: there will always be oil leak or finally everything in oil as in the photo above! You can check (whoever has a compressor) shut up the intake \ graduation channels to pass by spraying the seals with a soap solution and supply compressed air to the crankcase.You can change the oil seals without disassembling the housing, just lift the old special-hard-hardened or stiff bent wire.Do not score a new one, do not shove a screwdriver, or God forbid the sledgehammer. Having smeared the outer edge with a sealant with a slight effort, he must go. If we are tightly selected by the appropriate mandrel and with light blows in the area of ​​the metal clip, we sit in the place.Well, since they removed it, it is advisable to check the backlash of the bearings.If you removed the crankshaft, it is also not cost.effective to change the bearings on it! Better to change everything assembly! And save your nerves and a mower)))).If the mower is weakly drawn (does not have a power), it is advisable to look into the piston. To remove the piston, you need a specification (long hexagonal screwdrivers).Look like that’s it. Who does not know what, we will not be shy.In the course of disassembly, a flaw was revealed, namely a broken oil seal (punched through).The seals were replaced. Installed on additional sealant (window, very expensive and reliable). All gaskets are replaced.All threaded joints “sat down” on anaerobic sealant (Loquetay is popularly) blue.Everything was adjusted and wound up.And people already wanted to throw out))).Do not lose hope))).Good luck and good.


Store lawn mowers in dry, well.ventilated rooms. For short.term storage, no preparatory actions are required, it is enough to roll the device to the place intended for it and fold the handle.

If the shelf life exceeds a couple of months, then the device must be prepared for which the following actions are performed:

Drain and oil drain

This operation is necessary for two reasons:

assemble, gasoline, properly, trimmer
  • During long.term storage, combustible materials are lost part of their characteristics, so the engine is launched after long downtime with gasoline or oil that remained after the end of use this year can cause serious harm to the engine and reduce its resource.
  • If during the storage the device you have to turn it over or put vertically, then combustible materials can flow out, after which they will stain the floor and hull of the braid, fill the room with a heavy oil smell and pose a threat to the occurrence of a fire.

The method of draining these liquids depends on the design of the lawn mower and is described in detail in the operating manual.

If there is no manual, then the mower needs to be put on the table (drainage materials are drained in this way only after the engine cooling), tilting to one side at an angle of 45 degrees and carefully inspect the motor and fuel tank from the bottom in search of drainage holes.

If they are not, then you first need to unscrew the lid of the fuel tank and turn the mower with the wheels up so that the glass is gasoline, then tighten the lid of the fuel tank.

Before draining oil, it is necessary, not including ignition, pull the manual starter 5-10 times, thanks to this, the oil pump will give grease to all the rubbing parts of the engine, as a result they will be protected from moisture to spring. Then you need to unscrew the lid of the pouring oil neck and turn the device again, waiting for the complete flows of the liquids, and then return the lid to its place.

Some models of mowers are equipped with engines, which manufacturers say that motors do not need to change the oil, but only in its valve. This is not a too honest statement, because the engine can work in the old oil, which is constantly added by new, but only a limited time, for example, 500 or 1000 hours.

This engine resource is just enough for the entire warranty period of operation declared by the manufacturer (usually 2–5 years), after which there is a large probability of a motor breakdown, while when changing the oil, the engine can operate 10–20 years without repair.

Therefore, to drain the oil in mowers with such a motor or not to drain, everyone will have to decide individually.

If high.quality oil corresponding to the SAE and other parameters is poured into the engine, then you can not only drain the old oil, but also fill the new one, but this procedure must be carried out on a hot engine, therefore it is applicable only where there is a special opening for this.

Then, in diesel fuel or gasoline, the oil filter is washed (if it is installed on the model and it can be washed) and the new oil is poured, after which, not including the ignition, twitch the manual starter cable 5–10 times to grease all the rubbing engine details.

Drying of the case

Proper maintenance involves washing the case after each use, which is why it is likely that droplets of water, remaining on the housing, will freeze and damage the LCP or rubbing parts.

Therefore, before leaving the mower to long (winter) storage, it is necessary to carefully blow the body from all sides with the help of a blower, paying special attention to the joint of the wheel axes and bushings that perform the function of the bearing.

If the wheel axes are installed on the bearings, then it is necessary to carefully blow the bearings from all available areas to remove even the smallest moisture particles from them.

Preservation of rods and bearings

It is necessary to treat the inner surface of all cable drives (rods) with WD-40 liquid to remove water from them, and then pour 0.2-0.5 cm3 of motor oil into them using a syringe.

If this is not done, then after 3-5 years it is likely that the cables will begin to seize, which will lead to the impossibility of resetting the engine speed and other problems in time.

Some models of mowers provide for lubrication of bearings, including sliding (shaft-linen) through special tavotnitsa. Before winter, such bearings must be filled with a lubricant recommended by the manufacturer using a syringe for servicing (syringing) of the chassis of old cars.

Checking and sharpening a knife

The more acute the knife, the less the load on the engine, which means that the longer service life is longer. The most important condition for sharpening the knife is to preserve the balance, because if one side is more difficult than the other even by half a gram, this will lead to strong beats that negatively affect the resource of the crankshaft bearings.

To check the centering, the removed knife can be put on a 1-2 mm thick plate vertically fixed in a vise, if the balance is observed, then the balance will be achieved when the plate is exactly in the middle of the knife.

If it is shifted to the side, then when sharpening more metal is removed from this side, constantly checking the balance. You can also give a knife to sharpen a specialized workshop engaged in the repair and maintenance of gasoline lawners, or install a new one instead.

In any case, before installing a sharpened or new knife, it is advisable to check its balancing, because it is many times easier and cheaper than changing the bearings and crankshaft of the engine, broken due to an unbalanced knife.

Varieties of lawn mowers depending on the power unit

Types of lawn mowers by type of engine are limited by two options. electric and gasoline. Diesel engines in these machines (with the exception of some models of mini-tractors and riders) are not used due to large weight, complexity of the design and low rotation of the shaft rotation.


Trammers for grass and lawn mowers with electric motors are very convenient in small areas near the house. They are productive, low.noise, light, do not require complicated maintenance. There are very few requirements during operation. The main ones are not recommended to mow wet grass and not overload the engine, it should work at stable speeds.

With large loads and a frequent decrease in rotation frequency, the engine overheats, which leads to its failure, and repairing such motors is expensive and difficult. In addition, the cable stretching behind the lawn mower or trimmer is not only inconvenient, but also limits the radius of the working area. If you have to mow between the trees, then it is better not to find a gasoline trimmer for grass.

Gasoline lawn mowers

On the basis of two and four.stroke gasoline engines, a lot of models of trimmers and wheel mowers are produced. For trimmers, two.stroke engines are usually used, as lighter, quite powerful and easy to maintain.

Wheel lawn mowers are equipped with both types of gasoline engines, depending on the size and the required performance. Basic mowing machines are characterized by a high level of autonomy, a significant resource (2.8,000 mothers), depending on the brand of the engine, maintainability. They are quite economical-even if you use high-quality fuel and brand stamps of oils (but it is not recommended to do otherwise), then the cost of operating gasoline lawn mower or a trimmer for grass will not exceed the costs of one or two travel by a distance of 150-200 km.

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