Petrol trimmer power how to choose

Petrol trimmer handle weight and type

According to the type of bar (handle), trimmers come with a curved handle for light loads or with a straight handle for larger loads. The weight of the trimmer, as a rule, does not affect the operation of the tool, it matters for the person working with it. if it is a man, then you can take a heavier model, if a woman, then it is easier.

When choosing a tool by weight, you need to take into account the size of the trimmer gas tank. the larger it is, the heavier a fully filled trimmer will be (on average, 0.6-1.5 kg).


Used for mowing weeds and grass in the local area. It is a lightweight tool with a curved handle and a power of 1 horsepower or slightly more. Such trimmers are suitable for small amounts of work or infrequent mowing, haircuts.

When purchasing a household tool, you need to know how to use a grass trimmer. it needs rest every 20-25 minutes of work, otherwise it may fail. But at the same time, the household trimmer has moderate gas mileage and excellent maneuverability.


Their power is higher. 2-3 liters. with., respectively, and more gasoline for a professional trimmer is consumed. Such a trimmer performs a much larger amount of work and has a knife in the configuration, that is, it cuts both grass and thin branches, bushes.

It is also equipped with a shoulder strap and anti-vibration system. But also when working, it requires rest every 30 minutes and cleaning the cutting part of grass.

Gasoline trimmer: the purpose of the tool in the country

A lawn trimmer is essentially a gas-powered grass scythe. It is used for mowing ornamental grass (leveling, cutting), for mowing weeds, for mowing grass for hay.

The trimmer does this quickly and neatly, in addition, it is light and easy to maintain and does not require a lot of storage space. the main difference between a trimmer and a lawn mower.

The trimmer can not only cut grass and herbaceous plants, it perfectly cuts off not thick (2.5-3 cm in diameter) branches of trees and shrubs. so it will replace the pruning shears in the garden.

How to choose a gasoline trimmer for a summer residence, selection criteria

Before choosing a petrol trimmer, you need to know at least briefly the main parameters of the tool. The key when choosing a petrol trimmer will be how often you plan to use it and what areas it is intended for.

Based on this, the best gasoline trimmer for your specific area is selected according to the power and performance of each individual model.

Additional accessories

Before choosing a lawn trimmer, explore all the features of each model. some have additional useful features. This can be a snow plow attachment, an anti-vibration system. for the convenience of hands, a quick start of the trimmer with a decompression device, which increases the service life of the tool.

Types of trimmers on a gasoline engine

Let’s take a look at the different types of petrol trimmers and find out which jobs each one is best for.

Trimmer knife and line

The line included with the trimmer is used only for cutting grass. Several types of fishing line are distinguished by the type of pattern:

  • in the shape of an asterisk. for green decorative lawns or young grass;
  • in the shape of a square. for tall grass with thick stems;
  • in the shape of a circle. versatile, suitable for both lawn and woody and dry grass stems, leaves.

For cutting branches, cutting shrubs, you will need a knife. There are models equipped only with a line, and there are models with both a line and knives.

Bar and shaft of the petrol trimmer

The trimmer bar, inside which the shaft is located, transmitting rotation from the engine to the working head, can be either straight or curved. The first is more reliable, the second is more ergonomic. Straight rods are installed on professional and semi-professional tools. Placed inside such a rod, the transfer shaft is a rigid rod made of extra strong steel. The risk of damage to such a shaft, even with significant loads, is small.

Rigid shaft.

Straight bar.

On gas trimmers with a rigid shaft, the torque from the shaft to the cutting attachment is transmitted through a bevel gear reducer. Gearboxes can be serviceable and non-serviceable. The serviced gearbox has a technological hole through which you can change or add lubricant. In non-serviced lubricants, the manufacturer prescribes for the entire service life.

How to Fix a Trimmer Carburetor

Some users find that an unmaintained gearbox is less durable. In turn, manufacturers note that this step is aimed at increasing the service life of the gearbox, since, according to statistics, very often gearboxes fail due to improper dosage of lubricant or the ingress of foreign objects during maintenance.

A curved bar is typical of lightweight home trimmers. A tool with a curved bar is more convenient for cutting grass in close proximity to bushes and trees, benches, fences, etc.

The downside of this convenience is that these tools are less reliable. The fact is that transferring rotation from the engine to the cutting element in this case is possible only by means of a flexible drive, and the latter is more vulnerable than a rigid shaft, and the likelihood of its failure is much higher.

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Flexible shaft.

Curved bar.

The benzotrimmer bar can be one-piece or collapsible. A one-piece transmission shaft (and this is a guarantee of reliability) can only be installed in a one-piece shaft. But it is less convenient to transport and even just store such a tool. The collapsible boom, consisting of two or more sections, on the other hand, provides compactness during transportation and storage.

The disadvantage of split rods is obvious: the transmission shaft must also be disconnected, and any drive connection is an additional vulnerability. In addition, soil, sand and other debris can get inside the boom during disassembly, which leads to premature wear of the working elements.

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Additional amenities

Anti-vibration system

During the operation of the trimmer, vibrations occur, which is generally characteristic of any mechanism, the individual elements of which perform rapid reciprocating movements. Vibrations can cause significant discomfort to the operator during work, and with frequent use of the tool, he can develop health problems, the most predictable of which is premature wear of the elbow joints.

A special anti-vibration system will help to significantly reduce the vibration effect on the body of a person working with a trimmer. In the simplest and most common version, it is a set of polymer spacers located between different structural elements of the trimmer.

Anti-vibration system for petrol cutters.

Such gaskets reduce the transmission of vibration and thus provide a normal working environment for the user with the tool. Often, manufacturers to damp vibrations additionally separate the engine from the boom with special shock absorbers. Almost all the world’s leading brands equip their products with an anti-vibration system.

How to choose a gasoline grass trimmer

With the arrival of spring, we, tired of the white-gray monotony over the long winter, are sincerely happy with the appearance of green grass. However, this joy does not last long. Very soon, the weeds grow so much that you have to put a lot of effort to combat them.

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Tips and tricks for starting a petrol hedge trimmer

An ordinary scythe is unlikely to become an assistant in solving this problem: few of the modern city dwellers know how to use it, and it is good only in spacious areas where fruit trees, garden benches, fences, curbs do not come across at every step.

Well, today there is a great alternative that is easy to operate and convenient in confined spaces. a brushcutter, or a trimmer. Now we will look at how to choose a good gasoline grass trimmer and take into account all the nuances.

Petrol trimmer device

Numerous models of hand-held brushcutters available on the market today differ in power (and, as a consequence, in their capabilities), weight, the presence of certain additional functions that increase ease of use, but at the same time the basic diagram of the tool remains unchanged.

Any petrol trimmer uses an internal combustion engine as a power drive. By means of a rigid or flexible shaft, rotation from it is transmitted to the cutting element. a spool with a cord (line) or a special knife. The shaft is located inside a metal rod, at one end of which the engine and fuel tank are fixed, at the other there is a cutting head.

A handle is attached to the middle of the bar. Most often, it is on it that the keys, buttons and switches are located, with the help of which the operation of the trimmer is controlled.

The layout of the controls may differ slightly depending on the model of the tool, but, as a rule, this includes a button to shut off the engine, a throttle button that allows you to control the carburetor throttle, and a stopper of this button when pressed down for easier control during large volumes of work.

2. Trimmer head.
3. Protective cover.
4. Throttle Lever Stopper Button.
5. Switch.

Throttle lever.
7. Handle.
8. Stopper of the throttle lever.
9. Barbell.
10. Loop for attaching a carabiner to a belt.

Air filter.
12. Spark plug.
13. Engine housing.
14. Exhaust manifold.
15. Gas tank.
16. Starter.

Trimmer head

Almost all trimmers are equipped with a trimmer head. a reel designed to wind the cutting line. According to the method of feeding the line, all trimmer heads are divided into mechanical (you have to pull the ends of the line yourself manually), semi-automatic (the line is released by pressing a wide button on the lower plane) or automatic (lengthening of the protruding ends of the line occurs automatically when the engine speed decreases). Semi-automatic cord feeding is considered the most efficient, such heads are most popular with users.

In addition, the trimmer heads can differ in the maximum diameter of the cutter line that can be tucked into the reel. On household trimmers, a fishing line with a diameter of 2 to 2.4 mm is usually installed, on semi-professional. from 2.4 to 2.7 mm, on professional. from 2.7 to 3 mm.

When choosing a trimmer head, be sure to pay attention to the material from which the lower part is made. It is this part that is most vulnerable, since it constantly strikes the ground, it is this part that is especially often the reason for the failure of the trimmer head.

For mowing especially thick grass, reeds, shrubs, young growth of trees, they use not fishing line, but special knives (cutters). On sale you can find a huge number of varieties of trimmer knives, differing in material (metal or plastic), shape, number of cutting blades. By the way, cutters, unlike fishing line, do not crumble the grass, which means they can be used for mowing for harvesting purposes.

Which knife to choose for your trimmer? When solving this issue, first of all, one should be guided by the recommendations of the manufacturer, indicating the possibility of using one or another type of equipment on this model. Excessive independence in the choice of knives and cutters can lead to the failure of the trimmer.

Tool power

How to choose a petrol grass trimmer for your home garden? And for processing a “plantation” with an area of ​​a couple of hectares? That’s right, focusing on its power.

The trimmer-mounted petrol engine can range from 1 to 3-3.5 hp. The choice of a tool for this parameter directly depends on the expected load. It is the power of the trimmer that determines its operational purpose. So, for mowing the lawn next to the house, a simple tool with a capacity of no more than 1.5 liters will be enough. from. A more powerful engine is installed on farm trimmers. from 1.5 to 2.5 liters. from. The whole range of trimmer capabilities can only be demonstrated by a professional tool with a power of more than 2.5 hp.

It is clear that an increase in the power of a tool inevitably entails an increase in its weight and cost. It follows from this that when choosing, you do not need to thoughtlessly chase high power indicators, but focus primarily on the planned scope of the tool.

Determining the type of gasoline trimmer

All trimmers and petrol cutters available on the market today, depending on their capabilities and purpose, are divided into three classes: household, semi-professional and professional. What tool do you need? It depends primarily on the tasks that will be entrusted to him.

Trimmer selection based on the knowledge gained

Having read the two previous chapters, a potential consumer may well be able to answer the question. what to choose, a gasoline trimmer or an electric lawn mower. For the final consolidation, consider the advantages and disadvantages of each type.

  • Autonomy of work. Independence from the power source allows gasoline mechanisms to conquer vast areas;
  • High power. Large values ​​of this parameter enable these products to cope not only with small grass, but also with large weeds and even woody vegetation.
  • Maintenance and operating costs. To ensure work, you must constantly purchase consumables: knives, fishing line, oil and gasoline. The complexity of the internal combustion engine design explains the costly repairs in the event of a breakdown;
  • Anti-environmental friendliness due to harmful emissions during operation;
  • High cost (from 6000 for the simplest and least powerful model);
  • Complexity of operation. Using the product and launching it requires some technical skill;
  • High noise level during operation due to the structural features of the two-stroke engine;

The advantages of electric trimmers:

  • Low noise level provided by the electric motor;
  • Ease of management and launch;
  • Small;
  • Environmental friendliness.
  • Low power and the absence of a knife in many models will not allow such a product to cope with large vegetation;
  • Impossibility of operation without a power source;

Main Parameters of Electric Grass Trimmer

The power consumption values ​​for electric mowers already start at 250 W. These are the so-called “grandmother’s” trimmers. The name is explained by the fact that you have to work with such products, keeping your back in a bent position due to the small size of the equipment.

Such products are equipped with a lower motor, which is inconvenient in that they are prohibited from mowing wet grass due to the danger of a short circuit.

On the market, you can find more serious models of electric trimmers, which are distinguished by high power ratings. from 800 W and above. Such mechanisms are already equipped with an upper engine. Choosing a similar trimmer for a summer residence means getting a powerful assistant with a large resource.

Cutting element.
Most electric mowers only come with a line reel. The role of lawn trimmers allows products to do without a knife. Nevertheless, there are individual electric copies with a straight bar, which are also equipped with a knife.

Which trimmer to choose. petrol or electric

  • Main Parameters of the Gasoline Grass Trimmer
  • Main Parameters of Electric Grass Trimmer
  • Trimmer selection based on the knowledge gained
  • How to choose a trimmer line

Gasoline trimmers are reliable assistants for any summer resident and simply for the owner of a private house. The capabilities of this mechanism allow both to clear large areas of dense thickets from grass, and to perform more delicate work. for example, processing a lawn.

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Having shown themselves and their remarkable abilities, benzo and electric trimmers are gaining more and more popularity among people who own a summer cottage. In this regard, there are more and more offers from manufacturers, more and more new brands appear.

Against this background, it can be difficult for an unenlightened consumer to choose the right gasoline or electric trimmer. In order to somehow facilitate the process, we suggest that you familiarize yourself with the main characteristics, rules of operation of these mechanisms and understand what to opt for.

Main Parameters of the Gasoline Grass Trimmer

Each full-fledged line contains models with power consumption from 1 kW to 2.5 kW (in terms of horsepower. from 1.3 hp to 3.5 hp). For home conditions, the first two models with a minimum power of 1 kW. 1.5 kW are quite enough. powerful instances are usually used by utility workers who deal with large areas on a daily basis.

Rod type.
Speaking about the gasoline trimmer bar, two important points can be noted.

First, the bar can be straight and bent.

It is preferable to opt for a product with a straight rod, because in this case the element that transfers torque from the engine to the gearbox is a rigid and durable rod. In the case of a flexible bar, such an element is a plastic cable, which tends to break at the bend of the bar.

A benzotrimmer with a curved element, as a rule, has only a line as a cutting element. The knife is not used in this case due to the flimsy structure. This option does not even have a gearbox. The torque from the engine is transmitted directly to the cutting element via a flexible shaft.

Secondly, the gasoline trimmer bar can be collapsible and non-collapsible. Models of the first type are 300-400 rubles more expensive than their counterparts with a non-separable bar and have an advantage only in transportation. the bar folds in half and does not take up much space.

You can distinguish a collapsible model by a special lamb, loosening which, you can disconnect a separate element of the bar.

Cutting element.
Most petrol trimmer models come with both a line reel and a two- or three-blade knife. Choosing a trimmer with both of these elements is a versatile garden tool. The line is used for more delicate work, and the knife will help to cope with large weeds.

There is a cutting element on the market called a disc, and it looks like a circular saw blade due to the same set of teeth. Such a consumable allows you to cope not only with grass and weeds, but even with woody vegetation with a small trunk diameter.

engine’s type.
90% of these products have a two-stroke motor. To answer the question. how to fill such a trimmer, familiarity with the instructions will help. Before starting operation, you must stock up on AI-92 fuel and two-stroke oil.

The manufacturer advises to dilute the trimmer gasoline with oil in a ratio of 1:50. That is, one liter of clean fuel will require 20 ml of two-stroke oil.
Similar products are found with four-stroke engines.

Such models have a high power rating and cost 1.5-2 times more than options with a two-stroke engine.

How to choose a trimmer line

The main consumable item for both gasoline and electric trimmers is the fishing line.

The fishing line is chosen, paying attention to its two characteristics:

Section diameter.
The following standard sizes are found on the market: 1.4 mm; 1.6 mm; 2.0 mm; 2.4mm and 3.0mm. Sizes from 1.4 to 2 mm are used mainly with electric trimmers. Large fishing line with a diameter of 2 mm and above is suitable for gasoline mowers.

Section drawing.
There are a wide variety of types of line sections. a circle, a star, a square, a twisted square, a hexagon, and so on. The pattern does not really matter, but, nevertheless, many users believe that the line with a cross-section in the shape of a circle has the least cutting ability, since this option does not have sharp corners.

To finally dot the I, watch the video, which is called: how to choose a grass trimmer. This video review examines popular models on the market, both gasoline and electric.

How to choose?

When buying a cultivator attachment for petrol cutters, in addition to the power of the petrol trimmer engine, they rely on several factors. These are the processing width, weight, cutter diameter and the number of revolutions per minute. On average, the diameter of the cutters can be 20 cm, the number of revolutions. 180.

Considering that the cultivation attachments for the gasoline trimmer do not get along well with caked earth, you need to choose the option with a disc-type shield. At the same time, it is important to take into account the care factor, because it is better to loosen the soil after weeding it. It is important that the handle is T-shaped, in this case the direction will be as reliable and correct as possible.

As for the design of the boom, it is useless to buy a cultivation attachment for a flexible shaft, it will disable the unit quickly enough. The ideal option would be to purchase a product with a multi-slotted bar paired with a cardan drive. Such a unit will show itself in operation more efficiently and will be distinguished by its reliability. To prevent the engine from overheating, it is important that the power is at least 1000 W, otherwise labor productivity will decrease.

Design and mounting options

The design of such a device, as a rule, is equipped with one or two pairs of cutting parts. They are attached to the trimmer instead of the gearbox at the bottom of the boom or near the motor of the device. Weeding with a brushcutter is carried out by burning liquid fuel. In order to increase the strength and reliability of the structure, it has a straight reinforced bar, the diameter of which is at least 25 mm. Boom designed for optimal workload.

Based on the type of device, it is often provided for setting the cutting width of the cutting elements. As a rule, its indicators vary within 13-25 cm. As for the disc cultivator attachments for the benzotrimmer, their design can be equipped not only with a pair, but also with several discs with blades attached to them, bent at a certain angle. As a rule, these hinges also have a protective flap that prevents the ingress of earth during the operation of the device.

The design of the toothed nozzles can also have more than two cutting elements. Curved knives can be arranged in a row. At the same time, an increase in the number of knives increases the weight of the cultivator attachment. On average, it weighs about 5 kg.

The transmission of torque from the petrol trimmer engine to the hitch is carried out by means of a shaft arranged in the boom. Such a unit is not interchangeable, moreover, it differs in the number of splines available at the end of the rod. There are 7 or 9 of them. This feature is taken into account when selecting the hitch to the existing petrol trimmer. A cultivator attachment for a brushcutter with an input shaft of 9 splines and a 26 mm bar is attached instead of the lower gear.

The spline disc joining technique allows freedom of movement of the cutting parts. This is convenient specifically for cultivating the soil, since it allows loosening of the soil with a wide grip in one pass. In this case, there is no need for a large amplitude of movement of the bar.

Cultivator attachment for a gasoline trimmer: types, advantages and disadvantages

  • What it is?
  • Advantages and disadvantages
  • Views
  • Design and mounting options
  • How to choose?
  • Features of operation

The petrol trimmer is a unit with sufficient power and autonomy. It is convenient for various agricultural work. However, in order to increase its functionality, it needs different types of hinges. One of them is the cultivator attachment. What is it, what are the advantages and disadvantages of this equipment?

What it is?

The cultivator-type attachments for the gasoline trimmer are attachments for cultivating the land. In fact, it is a loosening unit, through which you can simplify the processing of a small area of ​​land.

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Depending on the type, the nozzles may vary slightly, however, it is not suitable for several types of work. It cannot plow and huddle the land. She just loosens the soil.

Advantages and disadvantages

Considering that this device is made with a high-quality assembly, it is durable, which cannot but please the user. The devices themselves really simplify the work of the summer resident and allow you to speed up his work.

With this device, you can loosen the soil in a flower bed, flower garden, greenhouse, in small beds and even around bushes and trees. On average, the device in one pass is able to capture soil up to 25 cm wide.

As for the disadvantages of cultivator nozzles for the benzotrimmer, many buyers note their weight. The lack of weight of the device is the reason that, when faced with difficult soil, it may not go deep into the soil at all, but only scratch its top layer. In addition, as practice shows, in such attachments it is impossible to press the cutters to the ground. This is fraught with the fact that the bar begins to spring, and, as a result, the equipment quickly wears out.

If you try to press the device harder to the ground, the bar does not withstand and bends, which can break the scythe or the working attachment itself. The drive rod is quite long; during cultivation, vibrations cannot be avoided, the magnitude of which is directly related to the length of the rod itself. In addition, it depends on the complexity of the area to be treated, because the load on the discs and cutters in the case of dense soil will be greater.

It is difficult to hold a vibrating instrument for a long time, as well as to operate it. In this case, it is also worth knowing that constant work with a vibrating instrument can be fraught with negative consequences for human health. For example, constant vibration can damage the blood vessels and nerves in the fingers for those who have problems with the blood supply. Long-term work with a brushcutter with a cultivation attachment may cause problems for healthy people.

If we are to take a hitch for cultivating the land, then it is better to choose the disc option. It is equipped with a protective cover, although this somewhat complicates the user’s work. As for the independent manufacture of the nozzle, this process does not always give an effective result. In addition to the fact that the work on the manufacture of a sample for soil cultivation is laborious, it does not always turn out to be of high quality and reliable. In addition, self-made products do not always cope with turf.

Do not use the device without a protective cover. In the process of cultivating the soil, it is necessary to ensure that not only stones but also glass fragments do not fall on the knives and protective devices themselves. If, through negligence, this happened, it is necessary to urgently stop the engine, disconnect the wire from the spark plug.

The equipment must be removed to flush the cutters. In addition, the device must be lubricated with oil from time to time. Considering the sharpness of the blade, work with gloves. In the process of cultivating the soil, you cannot switch to high speed. In order to properly put on the protective screen with the line limiter, it is necessary to remove the limit nut from it, insert the bracket into the slot and rotate the screen until it passes through the bracket slot. After that, you need to tightly pull the wing nut onto the bolt.

To install the attachment on the brushcutter, it is necessary to remove the plug from the hitch rod. After that, the connection is made so that the locking (release) button enters the recess on the hitch. The attachment is pushed forward until the button clicks into place. Before starting the work process, you need to firmly tighten the handle by turning it clockwise. If the holes are not suitable, this attachment cannot be used with the existing petrol trimmer.

How to start a trimmer with a 2 stroke engine

Depending on the type, the device may or may not have a cutter. On this basis, it can be classified into gear or disc. Products of the first type are characterized by the presence of cutters, which are located on both sides of the drive shaft. The second options work by means of cutting discs. However, the presence or absence of cutters does not affect the functionality. cultivator nozzles for a gasoline trimmer are bought for loosening the soil.

The differences between varieties lie in the type of soil that the cultivator implements themselves cope with. For example, varieties of the toothed type are lighter, however, because of this, they are not able to work on difficult soil. Disk analogues can work not only with light soil. These attachments are more rigid, stronger and more durable.

It is easier to handle long ridges with nozzles of this type, since in this case there are fewer turns. These devices are not universal, and therefore they need to be purchased for a specific model, because in this case everything will depend on the number of slots. Also, in this case, it is imperative to take into account the power of the trimmer itself.

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Features of operation

Taking into account the capabilities of the trimmer and the nozzle itself, work with the hitch is carried out until the period when the weeds have not yet really grown and strengthened. Thus, the user’s work will be more efficient, because it is easier to cut short grass than to deal with coarse and thick stems. Timely loosening of the soil with the help of a cultivator attachment will contribute to the accelerated growth and strengthening of the planted crops and, as a result, high yields.

It is important to securely attach the attachment itself to the petrol trimmer. It is important to take into account the fact that not every gardener can work as a brushcutter with a cultivator attachment, the reason for which is the weight of the scythe and the hitch. If the motor of the machine is not designed for a power of more than 1500 W, this attachment can only be used as no more than a ripper or a light tiller. It is important to understand that the nozzle for cultivating the soil with a petrol mower in no way replaces the unit for weeding, plowing and hilling. This is a mini device for small purposes.

The knives rotating in the process of work are quite dangerous, and therefore work with the gasoline trimmer should be extremely careful. Do not try to remove weeds from the knives when the device is turned on. This can be done only when the engine is completely stopped. Do not grab the knives with your hands or try to block them. Timely it is necessary to inspect the device, eliminating breakdowns, as well as worn parts.

You need to refuel the unit on the street. It is important to ensure that there is no oil or fuel leakage. Do not allow the engine to overheat. During work, the operator must stay away from rotating elements, as the cutters can damage the limbs. Before starting work, you need to inspect the area of ​​future processing and rid it of solid objects. For example, it is advisable to get rid of stones that can cause a stop or even breakage of the cutters.

If this happens, stop the unit immediately and inspect it for damage. You cannot work with a broken device.

You will learn more about the cultivator attachment for the gasoline trimmer in the video below.