How to fix a trimmer for grass yourself

Repair of trimmers must be carried out as soon as possible when the first signs of breakdown appear so that minor malfunctions do not lead to more serious problems. All models are characterized by the presence of such main nodes and structural elements: the drive system (engine), gear rates, the working part (knife or fishing line), belts and handles. Damage can occur in any part, but some nodes fail much more often than others.

Motokosa working on gasoline or electricity (like different models, from various manufacturers) differ in the design and nature of the problems. Some of them can quite simply be eliminated with your own hands, while others will require more major repairs or contacting a service center.

How to get a lawn mower if a trimmer motor for grass immediately stalls

If the device is not started, you need to check the presence of gasoline lawn mowers in the tank. Keep in mind when you refill your device with a specially prepared mixture of oil and gasoline, fuel should not be lower than the AI-92 brand. A certain amount of oil in order to avoid engine breakdown is added to a previous volume of gasoline using a syringe. After making sure that the problem is not the absence of gasoline, we proceed to checking the performance of the ignition unit.

Search for malfunctions in the ignition unit starts with a candle. To check if it works, just twist it, bring it to the case and try to start the motor. If everything is in order with the candle, you will see a spark that flashed between the housing of the lawn mower and the candle.

Another source of trouble is that a mixture of oil and gasoline floods the channel into which the candle is screwed. Try drying the channel, as well as dry and clean the candle itself. You need to leave the drying device for about one hour, then screw the candle again and try to start the engine. If the fuel constantly floods the candles, you are unlikely to eliminate this kind of malfunction, so you need to contact a qualified specialist.

If you have determined that the source of problems lies not in the ignition unit, it is time to check the state of the unit filters. Fuel and air. The air filter will need to be changed to a new one, if after removing the old filter you find that the engine has become easy to start without it. To make sure that the fuel filter works, do the following:

  • Disconnect the hose from the outlet of the filter;
  • Try starting the engine;
  • If the fuel mixture began to flow out of the filter hole, then everything is in order with it. Otherwise, replace the filter.

The last reasons that the engine does not start, there may be a clogged sapun or silencer. You should make sure they are clean. If not so, clean the exhaust channel or saepun.

Materials:

It is equal to two distances from the center of the head to the protective casing of the trimmer for the grass. In the middle, the cable bends and blooms with two pliers to get a small loop.

A rubber sleeve with a slightly large inner diameter is inserted into the formed loop than the shaft on the trimmer. In the absence of a sleeve, the loop can be wrapped with island, but this will be a short.Term solution. After the cable loose on the loop, the cable must be washed back, squeezing the sleeve.

For reliability, the sleeves diverging from it can be additionally protected from unwinding with knitting wire. It should be wound on a cable, but without fanaticism.

The cable is refueling at the base of the head, and the sleeve is planted on the shaft of the trimmer motor for grass. After that, the cover is installed. The spool does not need a cable with such an installation of the cable, so it must be postponed for storage.

The described method of installing the cable is suitable for many models of trimmers, but there are types of heads with a different principle of operation. They can also be transferred to a cable and often even easier, since they imply a rigid fixation of the fishing line. In this situation, you will not even need a sleeve.

The trimmer for grass equipped with a cable is able to break strong stalks of plants and thin branches of overgrown shrubs into mulch. Of course, mowing a cable less safe than fishing line, so you need to use a protective mask and high boots. It is important that the cable has as thick vein as possible, then it will last longer. Its total thickness should not exceed 2-3 mm. It must be taken into account that the inertia of the cable is several times higher than that of the fishing line, so it cannot be installed in ordinary coils. In this case, their plastic antennae can be broken.

Installation of a sleeve with antennae kanates on a trimmer for grass

Remove the plastic coil with a fishing line from motorcycles and instead of it, install a trimmer’s working body assembled by ourselves with our own hands. Relibly tighten it with a nut with left.Sided thread with a end key with a side handle, stagging the drive from the back of the screw through a special hole.

We are convinced that none of the ends of the ropes hurt the protective casing, which is one of the conditions of safe operation of this tool. To do this, one “Usik” alternately opposite the casing with an effort we pull on the hand and fix the presence of a completely noticeable clearance between the ends of the antennae and the protective casing.

Types of coils

There are 3 types of the most popular trimmer heads:

Sparking carbon brushes ~ Cleaning the armatures commutator bar on a circular saw

Mechanical

A mechanical coil is a plastic or metal disk, in which one or more small cuts of the fishing line are fixed in various ways, which is why it has to be manually constantly changed for a trimmer.

Here are the most popular models of such heads:

Semi.Automatic (collapsible)

Despite the variety of models and differences in appearance, the coils of this type are arranged and work according to one principle.

The base connects the remaining elements of the trimmer head with a motorcycle or electric shock through the threaded sleeve paid in it, so each coil is only suitable for that trimmer, the diameter of the gearbox shaft or lower engine corresponds to the diameter of the sleeve.

A spring is installed inside the base, which supports the spool, squeezing the pressing part outward through the removable case.

There are fixers on the rogue and the case that prevent the turn of the first, however, when the operator hit the pressure on the ground, the spool comes out of the clutch with the lattice of the removable case and rotates freely.

See also  How to install a casing on a trimmer for grass. Disk selection criteria

Holes for the string are made in the removable case, and they are located so that the output of the fishing line from the spray is noticeably higher, this provides reliable fixation of the fishing line in working condition.

replace, trimmer, making, case

When the operator beats the pressure on the ground, the spool enters the case and all the holes through which the fishing line for the trimmer passes is combined. Then the centrifugal force pulls part of the wound string outward, and when the pressure on the pressure disappears, the spool leaves the body and again occupies the working position.

Automatic (indifferent)

Regardless of the model and manufacturer, all automatic coils are arranged and work according to one principle.

They consist of the following details:

A threaded sleeve is soldered into the foundation of the base, and a ratchet clamp is installed on the inner surface, which allows the spool to rotate in only one direction. There is a through canal intended for the fishing wire inside the spray. The cap is rigidly put on the spool, and the curly faces facilitate its rotation to wind the fishing line.

REDUTOR Repair

The first thing to start with independent repair of the lower gearbox Motokos (trimmer for grass) is to remove a knife from it or some other nozzle. After remove the gearbox cover, unscrew 3 bolts with an ordinary hexagon. Now we remove 2 locking rings, in front and inside. It is best to purchase a shooter for the rings in advance, since often after long use, the rings are practically accustomed and by improvised small screwdrivers or other means more difficult and longer in time. Also, using any flat tools you can ruin the rings themselves and it will not be possible to put them back. Now we take off the shaft. We take a nut that held the knife and wind it up to the same place, then pinch the nut in a vice with a gearbox downward. And neat tapping we knock down the gearbox itself, and the shaft remains in the vice.

Schematic image of the motorcosa gearbox:

  • Reducer case
  • Radial ball bearing
  • Set of gears
  • Radial ball bearing 6201-2RS
  • Spring stop ring 32 x 1.2
  • Radial ball bearing 609-2z
  • Spring stop ring 9 x 1
  • Spring stop ring 24 x 1.2

From myself, I categorically want to ask, in no case do not heat the shaft with a burner or anything else. If you do as I described, the shaft and so is very easily removed without any harm to the gearbox, and during the combustion process you will at least burn the paint on the front of the gearbox and oil for lubrication, which is inside. After we got the shaft, you can immediately see several causes of the malfunction. As a rule, this is a bearing that failed Il generally crashed into pieces, well, abundant clogging with grass and dirt of the inside of the gearbox, and the complete absence of even traces of lubrication. But our analysis does not end there, we need to get the lead gear into which the shaft is inserted. To do this, with the help of a regular flat screwdriver and hammer, carefully knock out the gear. So, they figured out this, but do not forget about the extreme bearing! In most cases, it does not go out with the shaft and remains inside. Due to inexperience, many newcomers have sorted through the seemingly the entire gearbox and replacing spare parts with new ones, they do not understand why, after a short period of time, the trimmer for the grass again fails and what to do with it. If the extreme bearing is broken, then the shaft will not sit firmly in it, it will begin to walk and break the gears one after another.

How to get it? In this matter, it is probably how many people and opinions, the most common heating will be heated again, strong knocking out on the back of the gearbox, which in turn will lead to deformation or, in general, to replace the new gearbox assembly assembly. There are still special filmmakers, not what I used to shoot rings, but much more, they are often only in service centers and then not in all. I want to tell you about the most folk life hack I met. The most ordinary loaf will come to our aid. Yes, everything is true, any loaf does not matter, only its pulp. A small piece (I have a loaf from lunch), we begin to knead it as much as possible until a homogeneous plasticine mass. Now we take our shaft (removing the central bearing from it in advance) again we wrap the nut.

It is desirable to fix it tightly in a vice and a small piece of the crumb is preferably in the central hole of the bearing and clog it with our shaft. So repeat several times. In order to remove some bewilderment in which I could explain this unusual image, Bukhankau, when we score it with a shaft, nowhere to go under the bearing and when we push a significant amount of crumb, we can easily knock it out, and then clean the inner cavity from the remnants Bukhankaa. Now we have before us an empty gearbox. We carefully study all the details, change both those that are clearly unsuitable for work, so that they are slightly worn or shook, so that later you do not have to disassemble the entire gearbox again because of one bearing or ring.

DIY trammer repair repair

We will try to answer the question: Repair of a trimmer bar for grass with your own hands according to the recommendations of a genuine master with the most detailed description.

Trimmer repair is needed when the device does not cut or it works incorrectly. All owners of personal houses and suburban areas are familiar with an unnecessary vegetation, which is sometimes difficult to get rid of. As clear, progress does not stand in one place and new developments and useful inventions arise in all areas. It hurts agriculture. You no longer need to mow the grass with old ill.Wing devices, modern benzo.Cosers came to the rescue, which are able to get rid of vegetation in the most inaccessible places.

A gasoline trimmer can be mowed grass even during cloudy weather. It is easy to care for a personal plot using this unit painfully, and to cope with this occupation will be able to at least some adult man.

Despite its multifunctionality, as it doesn’t matter what kind of technique, trimmers for grass tend to break and fail.

Not every person will be able to repair the lawn mower with your own hands, because for this we need the ability to repair electronic devices, but now we will try to figure out how to start a trimmer for grass without a starter and how in general you can debug his work with your own hands.

Do.It.Yourself trimmer repairs of a do.It.Yourself grass implies the elimination of all malfunctions, which interferes with the normal functioning of the unit. Among the most common, the following can be noted:

  • CPG breakdown (cylinder-piston group) of the engine;
  • The trimmer for the grass fails when trying to increase the speed of work;
  • Ignition coil breakdown;
  • There is no connection between the engine and the gearbox;
  • There are extraneous sounds during work;
  • The engine cannot develop the desired speed.

The breakdown of the engine CPG can occur due to the low quality of the fuel or wear of the motor parts. As you know, the lubrication of the piston group is carried out due to the clock, which is added to gasoline. In the old oil, the lubricant falls in the form of a sediment, which makes the oil unsuitable. If you continue attempts to launch a trimmer for the grass, you can ruin the motor in a matter of seconds, and this will entail additional costs of repairing a trimmer for grass. This breakdown is considered the most expensive. To eliminate it, it is necessary to replace the piston group assembly, to be more precise, it may be necessary to replace the cylinder, rings, pistons and seals. In such cases, it is unlikely that you can do without additional help, unless you yourself are a master and know how to handle a similar technique.

See also  How to wind a fishing line for a trimmer for a lawn mower. Two working antennae

The video considers the most common breakdown of the benzos and how to fight it works 100% verified

Please forgive me for the quality of the video. There was a problem with a video editor. But I hope. What will happen to you

Do.It.Yourself lawnies can be repaired with your own hands if it starts and works at idle, but then it bursts when you try to increase the speed of work. To eliminate this breakdown, the carburetor repair or cleaning the muffler or gasophilter is required. At first glance, everything is quite simply solved, but if, after you clean the clogging details of the trimmer for the grass, it has not earned, then additional diagnosis may be required.

The main sign that the ignition coil failed and the repair of the trimmers is required is the lack of sparks on the candles. It is very important in this breakdown not to rush with the replacement of the coil, in most cases the cause of the breakdown is the absence of contacts, in the switch button, which may have broken down, or if the problem is in the candle itself. It is required to check it, perhaps somewhere breaks the current or there are gaps or soot.

If the trimmer engine for grass cannot develop the desired speed, it is likely that an air filter has closed or garbage in the engine itself is present. The solution to the problem is clear at once. To clean the engine and filter, in some cases it may be necessary to replace the filter.

In the process of work, most users of trimmers are faced with constant noise. If you hear a characteristic knock, as if on metal, it is likely that the engine in the trimmer has overheated or does not pass fuel. To eliminate this sound, you need to pour gasoline or turn off the mower for a short time.

Do not exhaust the unit: if it constantly works for wear, then its service life is dreamed of several times. If the knock is felt in the engine itself, then the reason lies in the malfunction of the piston, piston ring, in a worn cylinder or crankshaft bearing. In order for the knock to disappear, you need to replace the failed part in the trimmer.

Sometimes it happens that the engine in the trimmer works fine, but at the same time the output shaft rotates very weakly or does not rotate at all. This is displayed that when a trimmer for grass touches the grass, it completely stops working and turns off.

To resume the normal operation of the mower, it is required to check the 3 main components, namely:

The gearbox is a very important component, therefore, the repair of the trimmer for grass in this case should be carried out by an experienced master, and so that in the future there is no such breakdowns, the gearbox needs to be provided with appropriate maintenance.

In addition to the above breakdowns, other malfunctions occur, for example, the power button is sunk or the limiter disappears from the mowing head. You can replace the power button using a soldering iron, and the limiter can be wrapped with copper wire. You noticed that the fishing line for the trimmer was torn or ended? It is enough to buy a new skein of the same fishing line diameter and, having dismantled the drum, wind it on a bobbin.

Repair of a trimmer coupling for grass. Primary diagnosis of a trimmer for grass.

The proper operation of the engine and the lawn mower in general is affected by a huge number of factors that are usually interconnected. If you fail to determine the malfunction, contact the proven service center.

I would like to note that before proceeding with disassembly and serious repair, you should check elementary consumables. These “little things” often affect work and, perhaps, repair of a trimmer for grass will cost “small blood”, so to speak.

Spend of the ignition-lack of soot, electrode clearance (0.5-0.6mm-or according to the instructions), good spark

Fuel filter. Lack of pollution, mechanical damage, good throughput. Periodic replacement according to the maintenance schedule in the operating instructions

Air filter. Lack of sawdust and pollution. Periodic cleaning in soapy solution and purge under high pressure. Replacement of the air element according to the instructions for the expulsion

Let’s get acquainted with other possible malfunctions:

It is worth noting that many owners confuse air leaks with a malfunction of the carburetor. Symptoms for air dsos into the engine are a strong oversuance of revolutions, both short and constant. Or a braid for grass simply refuses to start.

The main causes of air leaks on the Chinese trimmer:

  • Passes the crankshaft oil seal (12227mm small). From the side of the starter
  • Passes the crankshaft oil seal (15307mm large). From the side of the flywheel
  • Wear of the gaskets of the carburetor
  • Carburetor adapter

Actually, it is possible to understand what exactly from this list caused an air leak on a gasoline mower can only be examined by a detailed examination. Unscrew, shoot and be tormented in any case, so further in order.

replace, trimmer, making, case

Replacing the seals of the Chinese trimmer for grass.

One of the main causes of air leaks into the engine are crankshaft oil seals. In general, this problem is the most common on Chinese trimmers, and in some cases, seals begin to pass the air in the first year of service. All the fault of low.Quality rubber products of such mowers, well, no one has canceled natural wear.

Essle for different sizes were installed on both sides of the crankshaft (12227mm small and 15307mm large). You can safely sin on the seals if it begins to “snot”. Another indicator of their malfunction is floating turnover when working for “hot”. Next, we will consider in detail the process of replacing.

Replacing the omentum of the Chinese trimmer for grass from the side of the starter:

We unscrew the spark plug, block the movement of the piston with a stopper. Remove the starter (p.31). 13mm with a head of 13mm we unscrew the starter ratchet (p.35). Traces of a gas mixture on the omentum indicate its necessary replacement. With a thin flat screwdriver (awl, or any similar object that is at hand) we remove the old oil seal (p.36), pry it with a screwdriver from the side of the crankshaft and remove it.

We apply a small amount of oil on the inner surface of the new omentum before installation (you can use oil, which is used to prepare a gas station)

We blow out and degrease the seat under the oil seal, evenly install a new oil seal.

Replacing the oil seal of a gasoline trimmer for grass from the side of the flywheel:

We unscrew the spark plug, block the movement of the piston with a stopper.

See also  How to put protection on a trimmer for grass. Nozzle

For convenience, remove the crankcase cover (p.58) unscrewing 4 screws (p.61)

Unscrew 2 clutch mounting screws (p.57) with washers (p.56), remove the clutch assembly and the washers under it (p.53)

Unscrew the nut (p.52) flywheel (p.51), but not to the end. Not a strong blow to the nut “knock him off the crankshaft”. Unscrew the nut, remove the flywheel and the veneer. We will examine the surface of the oil seal. Traces of moisture, or wet pollution, scuffs and other damage on it are a signal to its replacement.

With a thin flat screwdriver (awl, or any similar object that is at hand) we remove the old oil seal (p.50), pry it with a screwdriver from the side of the crankshaft and remove it.

We apply a small amount of oil on the inner surface of the new omentum before installation (you can use oil, which is used to prepare a gas station).

Replacing gaskets and a carburetor adapter on a Chinese trimmer:

Another reason for the air leaks can be a carburetor adapter.

DIY repair trimmer rod

Details: a trimmer bar for the grass with your own hands from a real master for Olenord.Com.

replace, trimmer, making, case

Trimmer repair is needed when the device does not cut or it works incorrectly. All owners of personal houses and suburban areas are familiar with an unnecessary vegetation, which is sometimes difficult to get rid of. As clear, progress does not stand in one place and new developments and useful inventions arise in all areas. It hurts agriculture. You no longer need to mow the grass with old ill.Wing devices, modern benzo.Cosers came to the rescue, which are able to get rid of vegetation in the most inaccessible places.

A gasoline trimmer can be mowed grass even during cloudy weather. It is easy to care for a personal plot using this unit painfully, and to cope with this occupation will be able to at least some adult man.

Despite its multifunctionality, as it doesn’t matter what kind of technique, trimmers for grass tend to break and fail.

Not every person will be able to repair the lawn mower with your own hands, because for this we need the ability to repair electronic devices, but now we will try to figure out how to start a trimmer for grass without a starter and how in general you can debug his work with your own hands.

Do.It.Yourself trimmer repairs of a do.It.Yourself grass implies the elimination of all malfunctions, which interferes with the normal functioning of the unit. Among the most common, the following can be noted:

  • CPG breakdown (cylinder-piston group) of the engine;
  • The trimmer for the grass fails when trying to increase the speed of work;
  • Ignition coil breakdown;
  • There is no connection between the engine and the gearbox;
  • There are extraneous sounds during work;
  • The engine cannot develop the desired speed.

The breakdown of the engine CPG can occur due to the low quality of the fuel or wear of the motor parts. As you know, the lubrication of the piston group is carried out due to the clock, which is added to gasoline. In the old oil, the lubricant falls in the form of a sediment, which makes the oil unsuitable. If you continue attempts to launch a trimmer for the grass, you can ruin the motor in a matter of seconds, and this will entail additional costs of repairing a trimmer for grass. This breakdown is considered the most expensive. To eliminate it, it is necessary to replace the piston group assembly, to be more precise, it may be necessary to replace the cylinder, rings, pistons and seals. In such cases, it is unlikely that you can do without additional help, unless you yourself are a master and know how to handle a similar technique.

The video considers the most common breakdown of the benzos and how to fight it works 100% verified

Please forgive me for the quality of the video. There was a problem with a video editor. But I hope. What will happen to you

Do.It.Yourself lawnies can be repaired with your own hands if it starts and works at idle, but then it bursts when you try to increase the speed of work. To eliminate this breakdown, the carburetor repair or cleaning the muffler or gasophilter is required. At first glance, everything is quite simply solved, but if, after you clean the clogging details of the trimmer for the grass, it has not earned, then additional diagnosis may be required.

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The main sign that the ignition coil failed and the repair of the trimmers is required is the lack of sparks on the candles. It is very important in this breakdown not to rush with the replacement of the coil, in most cases the cause of the breakdown is the absence of contacts, in the switch button, which may have broken down, or if the problem is in the candle itself. It is required to check it, perhaps somewhere breaks the current or there are gaps or soot.

If the trimmer engine for grass cannot develop the desired speed, it is likely that an air filter has closed or garbage in the engine itself is present. The solution to the problem is clear at once. To clean the engine and filter, in some cases it may be necessary to replace the filter.

In the process of work, most users of trimmers are faced with constant noise. If you hear a characteristic knock, as if on metal, it is likely that the engine in the trimmer has overheated or does not pass fuel. To eliminate this sound, you need to pour gasoline or turn off the mower for a short time.

Do not exhaust the unit: if it constantly works for wear, then its service life is dreamed of several times. If the knock is felt in the engine itself, then the reason lies in the malfunction of the piston, piston ring, in a worn cylinder or crankshaft bearing. In order for the knock to disappear, you need to replace the failed part in the trimmer.

replace, trimmer, making, case

Sometimes it happens that the engine in the trimmer works fine, but at the same time the output shaft rotates very weakly or does not rotate at all. This is displayed that when a trimmer for grass touches the grass, it completely stops working and turns off.

To resume the normal operation of the mower, it is required to check the 3 main components, namely:

The gearbox is a very important component, therefore, the repair of the trimmer for grass in this case should be carried out by an experienced master, and so that in the future there is no such breakdowns, the gearbox needs to be provided with appropriate maintenance.

In addition to the above breakdowns, other malfunctions occur, for example, the power button is sunk or the limiter disappears from the mowing head. You can replace the power button using a soldering iron, and the limiter can be wrapped with copper wire. You noticed that the fishing line for the trimmer was torn or ended? It is enough to buy a new skein of the same fishing line diameter and, having dismantled the drum, wind it on a bobbin.

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