How to remove a trimmer head from an electrimmer

Quite often, a trimmer for grass is operated in the distance from places where you can purchase spare parts for a spitt with its breakdown. In this case, instead of a broken mechanism, you can install a simple coil made in design made by yourself. To do this, you need a sheet of plywood (textolite, metal, etc.), eyes, screws or screws. The process includes several stages.

  • A disk is cut out of the plywood sheet, which corresponds to the failed spool with a diameter.
  • A hole is drilled in the center of the disk, which matches the diameter with a shaft of a trimmer for grass.
  • Small eyes are attached to the opposite sides of the disk, which will serve to refuel the fishing line.
  • Through the eyes, pass the fishing line for the trimmer and fix it with ordinary screws or screws. The coil is ready for work.
  • Clutching the made bobbin between the two washers, it is attached to the shaft of the trimmer for the grass with a nut.

To replace the fishing line on a home.Made bobin, you will have to release fixing screws, insert a new section of the string and tighten the fasteners again. It is not necessary to remove the coil from the shaft of the trimmer for grass, however, it is necessary to exclude the possibility of spontaneous launch of the motor.

So, above was step.By.Step with the pictures described methods of repairing the string head. As you can see, the process is not complicated. And most of the breakdowns are directly related to the inaccurate refueling of the string and its unsatisfactory quality. You can clearly see all the stages of the process on the video.

The main malfunctions of gasoline trimmers

The most frequent are the breakdowns of the benzos associated with the following structural elements:

  • Engine (in particular with a piston system);
  • Carburetor;
  • Bar;
  • Starter (cliff of rope, breakdown or exit from the gearing of the spring);
  • With the ignition system or fuel supply;
  • Transmission mechanism (gear);
  • Filters and muffler.
  • The appearance during work of motorcycles of uncharacteristic sounds;
  • The lawn mower does not turn on, does not gain the required revolutions or stalls;
  • When operating the engine, the working part does not rotate or slip;
  • Leakage of gasoline;
  • Excessive heating of individual nodes.

Small breakdowns can also occur, which are found without any special diagnosis:

It is easy to fix minor malfunctions. Repair of a gasoline trimmer for grass in more complex cases will require preliminary diagnostics to clarify the exact reasons. If there are appropriate knowledge and skills of locksmith work, then problems can be eliminated independently, replacing the failed parts.


To recapture the braid, you need to have a flat grandmother without dents from multiple use. Usually they are stuck on machines. And, of course, you will need an even hammer, which should also not have a tuberous surface or bevels from strokes. It is convenient to use a quality tool, because everything is visible, and the results of the blows are predictable. If the hammer or grandmother is uneven, then undesirable dents may appear during shocks, which, with untimely elimination, can damage the blade.

The grandmother is a small piece of metal on which the manual braid braid is. On one side of her butt, and at the other end. The tip, so that you can drive it into a suitable piece of wood for a reliable fixation. Thanks to this simple tool, they create a working edge for cutting tools.

Protective cover for a trimmer for grass

About how Pasha guarded my collective farm in my garage.

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The drive block 70 is a drive block for the cutting blade 22 and includes the engine, gearbox and control circuit. Drive block 70 is connected to the cutting blade 22 cutting block 20 using a rotating shaft described above. Drive 70 is driven by electricity from battery 80 and activates the cutting blade 22 cutting block 20, forcing the shaft to rotate.

Hinge pen 62, safety rod 64 and handle 66 are located on a working stance 60. The hinge handle 62 is attached to the intermediate part of the working rack 60. The hinge handle 62 continues as a hinge on the upper side of the chair 60. The hinge pen 62 is formed by the bend of the tubular element. Attached to a working stance 60 in the direction crossing the longitudinal direction of the working stance 60.

As a rule, the user holds a trimmer for grass 10, holding 62 loops with his left hand and holding the handle with a 66th right hand. Installation of a coil with a reel removed 17, as if it were possible to close the protective cover. In this case, the cutting block 20 is located in front of the user, the drive block 70 is located behind the user, and the working stand 60 is located to the right of the user.

Protective rod 64 passes one way from the working stand 60. Protective rod 64 is located next to the hinge of the hinge 62 and is located in front of the user when the user holds a trimmer for grass 10. Protective rod 64 prevents cutting. Block 20 approaches the user, when a trimmer for grass 10 experiences a greater force of reaction example. Safety 64 is not absolutely necessary.

Further, the design of the protective case 30 will be described in detail. As shown in FIG. 2 and 3, the main case 40 of the protective casing 30 has a section of 40A of the upper surface, which is attached to the working support 60, and the section 40b of the peripheral wall continuing around the perimeter of the 40a upper surface. The sliding part 50 of the protective case 30 is attached to the lower end of part 40b of the peripheral wall of the main building 40.

As shown in FIG. 2, fig. 3 and FIG. 6, part 40 of the head is formed by the guide part 42, which takes place in a circular direction. How to remove the head of a trimmer for grass and how to remove and disassemble the coil. Before opening. This guide part 42 passes along the lower end of the 40b peripheral wall.

On the other hand, many foster guide sections 52, which move in contact with the guide part 42, are formed in the expanded part 50. This is many foster rails 52, located in a circular direction along the upper end of the expanded element. Part. Section 50.

Therefore, the expanded part 50 is supported with the possibility of moving relative to the main building 40, as shown in FIG. 4 and FIG. 5. The sliding part 50 is attached to the main building 40 by sliding in one circular direction relative to the main building 40 (direction D1 shown in FIG.4) and is disconnected from the main building 40 by sliding in another circular direction to the main building. 40 (direction D2 is shown in FIG. 4).

As shown in FIG. 5, the cutting part 32 is provided on the expanded part 50. The cutting part 32 cuts off the end of the nylon mowing fishing line 22a. How to remove the coil of a trimmer for the grass Makita UM3830 | The cutting blade 22 in accordance with this embodiment has a built.In coil, on which a nylon fishing line for a trimmer 22A is wound, and the 22B button is located on the lower surface, which unwinds a nylon fishing line for a trimmer 22A.

The cutting blade 22 is located so that the nylon wire 22a is spent to a given length when the 22B button is pressed when the cutting blade 22 rotates. Therefore, the user can unwind the new nylon wire 22A, by pressing the 22B button 22 to the ground, when the nylon wire 22A leaves during operation.

PICTURE. 7 shows an enlarged type of VII in FIG. 3 and FIG. Eight. Increased view of the VIII region in FIG. 5. In FIG. Nine. Type in the section along the mowing fishing line iX-ix in FIG. 7 and FIG. Ten. View in the section along the spitting fishing line X-X in FIG. 7.

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As shown in FIG. 7, fig. 8, fig. 9 and FIG. 10, the fixing part 54 is formed on the expanded part 50 of the protective casing 30, and the closing hole 44, which takes the engaging part 54, is formed in the main case of 40 protective casing 30.

In the protective casing 30, the protruding part 54 of the expanding part 50 is in contact with the locking hole 44 of the main building 40, when the expanding part 50 is attached to the main case 40, thereby constantly fixing the expanding part 50 relative to the main case of about 40 (see. Rice. 7, Fig. 9 and Fig. Ten).

Closing hole 44 is formed on the guide part 42 of the main building 40. On the other hand, the expanding clamp 54, part 50, is located on the inside of the guide part 42 and is hooked with a clamping hole 44 on the inner side.

As shown in FIG. 9, inclined surface 58 is formed on the mounting part 54. In addition, the inclined surface 48 is also formed on the main building 40. When the sliding part 50 is attached to the main case 40, the sliding part 50 slides in one circular direction relative to the main building 40 (on the right in FIG. Nine).

In this case, due to mutual contact between inclined surfaces 48 and 58, the protruding part 54 passively subjected to elastic deformation and moves to the inner surface of the guide part 42. When the sliding part 50 slides further, the slider 54 slides along the inner surface of the guide part 42 is hooked with a hole 44.

As a rule, they block and remove the protective cover. The knife should be removed from the trimmer for the grass. The front surfaces of the reciprocating movement of the clamping section 54 and the clamping hole 44 are perpendicular to the direction of slipping the expanding part 50. Therefore, the sliding movement of the expanding part 50 is prevented, and the expanding part 50 is fixed relative to the main body. Thirty. The sliding part 50 is easy to attach to the main case 40 without using the tool.

As described above, when the expanded part 50 is attached to the main building 40, the clamping part 54 slides along the inner surface of the guide part 42 in an elastic deformed state. In this case, the user feels the strength of the thrust caused by friction.

Lawn mowers and trimmers for grass. Review

You involuntarily compare with bright pictures from design catalogs and you feel. Not that. Few people understand that a good appearance creates not so much a beautiful house as a neatly ennobled area.

Among the elements of landscape design, the lawn took a special place. Perhaps no other detail can change the overall impression of the site so much, except in a stratime or night backlight.

It would seem that the lawn is a simple matter: he sowed the grass, and let it grow, turns green. Only in practice everything turns out to be much more difficult: you need to “guess” with seeds, to sow them correctly and in time, regularly water the shoots, and even cut it from time to time.

Cutting, of course, a lawn mower. The usual “grandfather” braid for the grass is not an assistant, because you need to cut the stems at the same level, withstanding the same height along the entire area of ​​the lawn. The grass is usually stunted, mowing it is inconvenient, dreary and physically difficult, and if there is no experience, then you should not try.

Probably, the word “lawn mower” today will not surprise anyone anymore. Even the most distant people from the summer cottage know very well what this miracle of technology looks like: a sort of vacuum cleaner, put on large wheels and equipped with a long handle. The thing, by the way, is quite massive and clumsy.

For sites with a complex relief there is a more convenient technique. A light electric trimmer for grass. The people are often called the “electrocosa”, and the gasoline models. “motorcycles” or “benzokos”. There is a certain confusion with the names: some sellers call the trimmer almost any lawn mower, some. Only manual braids for grass with the upper engine.

In general, the word comes from the English “trim”, which means “haircut”, and in the outdated meaning. “hairdresser”. That is, in principle, any lawn mower is suitable for this name. For simplicity and clarity in the text, we will use the word “trimmer for grass” in relation to any mechanical braids.

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By type of engine, trimmers for grass are divided into two types. The braids for grass with an internal combustion engine operate on gasoline (usually AI-92), for which they are nicknamed “motorcycles” or “benzoocos”. There are also models operating on electricity (“Electrics”). In this case, the engine weighs less and can be “upper”, that is, fixed on the upper part of the bar.

Both gasoline and electric trimmers for grass, as usual, have advantages and disadvantages, so you need to choose based on your own needs and preferences. In general terms, the differences look as follows.

  • Less noisy;
  • Do not consume gasoline, do not give an exhaust;
  • Less weigh, there are light “manual” models for haircuts in hard.To.Reach places of the site;
  • They are not afraid of wet grass (models with the upper engine), so you can cut even by dew and after rain;
  • Have relatively small power (up to 1100 watts);
  • Quickly overheated (it is necessary to periodically give the engine to cool);
  • Depend on the power source, you have to pull the wire behind the mower (though there are models on batteries with a small supply of energy).
  • More powerful (modern models have a very solid 4-cylinder engine);
  • Completely autonomous (do not depend on the presence of a rosette nearby, the length of the wire, etc.D.);
  • There are universals models to which you can attach a variety of nozzles;
  • Afraid of moisture;
  • They are very noisy, plus they give a not very environmentally friendly exhaust;
  • Consume oil and gasoline, which uses to end at the most inopportune moment.

This, of course, is not about bandits, but all about the same trimmers. Precisely, about their cutting heads, which are also different. There are three “standard” design solutions here:

A) a knife haircut (the model is equipped with a hard knife), b) a string haircut (the head cuts with a fishing line, cord string), c) a combined version (a trimmer for grass allows you to attach either a knife or a fishing line for a trimmer).

The cutting head of a trimmer for grass is equipped with a fishing line mainly for a “careful” haircut of lawns. A flexible cord string is not so sensitive to “clashes”: stones, branches and other obstacles will not cause harm to the fishing line, unless, of course, it is zealous. In turn, a fishing line for a trimmer does not injure the bark of trees and shoots of the bushes, so it is convenient for it to cut the lawn in the garden or park and generally in areas with complex relief, but soft herbs.

The width of confident capture of plants with string oblique can reach 45-50 cm. Some manufacturers produce a specialized cord for different types of grass and unusual “lotions”. For example, beloved by wealthy Russians “Husqvarna” (Husquarna), offers trimmer heads with manual, semi.Automatic and automatic supply of fishing line, hard cord for hayfields, “Wisper” cord, t.E. “Whisper”) with a reduced noise level and others.

The knife can be plastic or iron. The plastic is quite tenacious, and it costs cheaper, and iron knives are indispensable for cutting tall and hard herbs, clearing the groomed area. Powerful gasoline motorcycles can quite successfully cut storms with a stem thick of 3-5 mm even in the fall, when it is rude.

One of the characteristics of the knife is the number of teeth (rays). The more of them, the more accurate and even more a mowed strip is obtained. 4- and 8-tozovar cutters have proven themselves well. Knives may have additional “specifications” by the type of lawn or design features.

The weaknesses of the metal knife. Shock strength, sharpening and weight. The saying “found a braid for grass on a stone” for such cutting heads is still in force: in stony areas, the knife is quickly stupid, and from a strong blow it may crack. Due to weight, the load on the engine is larger, so in light trimmers iron cutters are ineffective.

True, in recent years knives have appeared from a variety of alloys, including with lowered weight and increased strength. You can recognize them according to the prefixes “Heavy” and “Heavy Duty” (“Long service life”) in the name, but you will have to pay more for such a knife.

Among modern trimmers, a class of station wagons is gradually distinguished: models that provide a detachable fastener of the head. This design allows you to easily change and wash knives, but, most importantly, use “specialized” nozzles. For some models, there are more than a dozen (!) of different nozzles, each of which performs its function. The most common nozzles for braids:

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Characteristic malfunctions and their independent elimination

Naturally, during operation, the owners of the trimmers are faced with certain malfunctions of mowing heads. Over, they are most often associated with certain difficulties in pulling (lengthening) of the cutting cord from the coil. The most common causes of the lack of fishing line is its “bite” between the turns or sticking.

If the string is not served

In this case, the cause of the defect is incorrect winding of the cutting cord. A trimmer fishing line can be wound with insufficient tension, which helps to cross the turns together and confuse the string. When the coil rotates, the cutting cord under the influence of the emerging centrifugal force is delayed, which in turn leads to the clamping of the free end of the fishing line between the turns. To eliminate this malfunction, you need to dismantle the coil, disassemble it and rewind the string so that the turns lie down in even rows, pressing tightly against each other.

If the string sticks together

Squeezing the turns of the fishing line directly in the mowing head can be caused:

Advice! To avoid sticking the cord inside the mowing head, experts recommend applying a thin layer of silicone lubricant after refueling the string to the coil. In addition, it is better not to use a fishing line for a trimmer of unknown manufacturers.

If, nevertheless, the user could not avoid sticking the fishing line, then to repair the trimmer coil for the grass, you need to remove and replace the existing cord with a better.

If there is too much string consumption

When using semi-automatic mowing heads, the user can detect the accelerated consumption of the cutting cord due to its spontaneous lengthening. As a rule, this happens due to the weakening of the spring installed inside the coil. You can eliminate the malfunction by putting several goals under the spring.

If the bobbin does not spin

The refusal to work the semi.Automatic coil of the trimmer for the grass can also be caused by a frequent clash of its head with solid objects (dry branches, soil, stones, etc.). In this situation, there is a slight stretching of the fishing line, and then the rapid retraction of it inside the bobbin. Due to severe friction, the cord is heated, which can lead to sticking its turns to each other. To eliminate the defect, the string will need to be rewound.

If the string is served spontaneously

Spontaneous lengthening of the fishing line, followed by trimming its tips, may be caused by a violation of the order of assembly of the head after replacing the cutting cord. Often, users who do not have sufficient experience forget to install the pressing spring inside the head, which causes premature operation of the mechanism responsible for the supply of fishing line.

Dismantling the spit head

Starting the repair of the head of the trimmer for grass, the owner needs to protect yourself from injuries when randomly starting the engine, for which you must completely de.Energize the electric garden tool or drown out the engine motorcycle engine. Most often, the owner of a trimmer for grass is faced with the need to replace the cutting cord. This process is started after the head is dismantled from the shaft. This must be done carefully to avoid damage it.

Important! The gearbox shaft, which is equipped with a trimmer for grass, has a left thread at the end, so the mowing head is taped clockwise when removing.

Dismantle the coil in the following order:

  • Having combined the holes available on the axis and washer, the mowing shaft is rigidly fixed by means of a screwdriver or a metal rod;
  • Unscrew the executive mechanism, rotating its case clockwise.

Having removed the braid head, they begin to disassemble it, for which you need to carefully open the lid, which is most often attached specially provided for by plastic locks. To do this, squeeze the edges of the lid and at the same time drown in the hull of the latch.

Attention! If the trimmer for the grass is equipped with a semi.Automatic head with a button at the bottom, then it needs to be opened by observing special caution, when removing the cover, a pressing spring can fly out and get lost.

Charging the string in the spool

To charge the fishing line for the trimmer correctly, it is necessary to act according to the instructions for the operation attached to the trimmer. As a rule, this operation is carried out as follows:

  • Cut off the right amount of cord and fold it in half;
  • The resulting loop is inserted into one of the specially provided grooves (holes) of the spool;
  • Pulling the fishing line for the trimmer, they turn the spool counterclockwise several times, while the coats of the cord should be laid in dense layers (one to the other), avoiding overlaps;
  • Having finished winding, the ends of the fishing line (about 20 cm) are left free, which are fixed in the grooves available on the sides of the spool;
  • Mount the mechanism in their place, for which it is necessary to assemble it in the reverse order, returning to its original position all the available details (spring, washers, etc.), and install the coil with a string in the body of the head;
  • The free ends of the cord are passed through the existing eyes (holes), after which the body is closed with a lid, which is fixed with latches.

On this charge of the spitter head, the cord can be considered complete. The coil is screwed onto the shaft of a trimmer for the grass, having previously stiffly fix it. How to do this described above. You can check the performance of the head by mowing a small area of ​​the lawn.

Advice! In those cases when the owner of a trimmer for grass prefers to replace the failed head of the new one, experts recommend avoiding the acquisition of cheap non.Original coils brought from China.

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Types and principle of the filters for a trimmer for grass

In modern motorcycles, two types of filters are used. Fuel and air.

Even the highest quality fuel has various additives that quickly accumulate and disable the technique.

The task of the fuel filter in gasoline trimmers is to protect the device engine from various impurities contained in gasoline and oil.

Outwardly it is very small in size. Make it from felt material. A compactly folded felt manufacturer placed in a metal tip and has on a fuel tank on a fence tube.

Another placement option is in the highway between the carburetor and the tank. Many owners of trimmers note even excessively thorough cleaning, so the material is quickly clogged so much that it requires a complete replacement.

Original consumables can be purchased in specialized stores. Average apiece.

Its main purpose is to keep the dirt and dust entering a trimmer for grass grass during operation.

With mowing, not only dust rises into the air, but also a small SOR, crushed grass, which can quickly clog the technique. A good filter will prevent engine breakdown, even if the air is very contaminated.

The place of its location can vary depending on the model of the trimmer for the grass, but is usually located on the side of the device under the protective casing.

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The casing is fixed either on a bolt or latches, which are very easy to open to remove the contents. The filter itself can be made in the form of a ring or plate of foam, felt, fleece.

If you mow on average 1-2 times a week, then it will be enough to replace at least once a year. With more intense use, check and replacement should be carried out more often.

Preparation for replacement

For clarity, a mowing head was removed from the motorcycles (Spool). To replace the fishing line you do not need to remove it, everything is done in place. It doesn’t take much time.

We disassemble the rogue of the trimmer for the grass-it holds on the clan locks. Remove the lid, pressing on the latches. If you do not have enough effort with your hands, then use the screwdriver.

The principle of action is as follows. By clicking on the button, the coil presses on the spring and leaves the fixing grooves in the lid of the spray. Holding the coil in this state, you can twist, thereby adjusting the length of the fishing line. When the button is released, the housing spring returns the coil to the original fixed state.

Below on the coil there are several holes for a different diameter of the forest. For different manufacturers of trimmers, they may differ. In some cases (as here) they are signed, in others there is no.

These holes are needed to fix the fishing line when replacing it. After winding on the labina of fishing line, the ends of the latter are inserted into them. This is necessary so that the forest does not unwind at the time the coil is installed in the trimmer body for grass. In other words, it facilitates the replacement of fishing line.

There are models without specifying the diameter of the consumable. Then, in order to find out what maximum forest diameter can be used, it is tried on by the openings of the fishing line out of the trimmer‘s corps of the grass (see. Figure below).

The coil has two sections for the fishing line separated by a partition. They may not be. They are needed only to distinguish and facilitate the winding of the consumer.

How to correct the trimmer motor for grass with fuel?

Automated garden braid for grass promises good durability, subject to proper operation, including refueling with fuel. The gasoline engine of such a device is not allowed to operate on clean gasoline. Previously, before refueling, it is necessary to prepare a working mixture of fuel. Namely, mix unlimited gasoline with machine oil.

The working fuel capacity included in the kit, as a rule, has marks on the case for the correct mixture: 1. The level of unhealthy gasoline; 2. Machine oil levels depending on the ratio

Mixing unhealthy gasoline with machine oil is required in the correct ratio. Therefore, many manufacturers of string and other gasoline trimmers mark working capacities.

The user will only have to fill the container for mixing with fresh unhealthy gasoline in accordance with the fuel marker line. Then machine oil is added to the moment when the fuel mixture reaches the border of the ratio of 40: 1 (optimal for two.Stroke engines).

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