DIY garden trimmer bobbin repair

Modern technologies and equipment make it possible to produce the best and optimal technical solutions that become effective assistants in the arrangement of a summer cottage or a personal plot. The green lawn and other plantings can grow rapidly, a petrol cutter is used to tidy up the local area and mow the lawns, which is also called a brushcutter or trimmer, a petrol mower.

Traditional braids are inconvenient and unsafe to use, require a significant investment of time and effort, which will help save gas mowers, combining functionality and practicality in their design. In the photo of the petrol brush, you can see various high-tech devices, which are inherent in a set of operational characteristics, including such parameters as increased productivity and a long service life.

A convenient and reliable trimmer is a technical device consisting of individual mechanisms, parts and elements that can wear out, become unusable and damaged during intensive use.

Even with regular technical inspection, maintenance procedures and careful storage, such devices and their individual parts require repair and even replacement, all repair procedures can be performed independently.

Brief content of the article:

The easiest way is to give the petrol cutter for repairs, having allocated a certain amount of funds from the family budget, prompt and high-quality repair with your own hands is no less simple and convenient if you want to understand the design of the petrol cutter and fix all the problems.

The mass and piece production of trimmers is based on the use of generally accepted technology, a typical design scheme consists of certain elements and parts, it is important to know them when carrying out independent repair work:

• top part. The basis of the entire structure, where all important elements are collected, such as a starter, a carburetor and a petrol cutter engine;
• middle part. A hollow rod, inside it is a cable that connects the motor and the gearbox, which drives the cutting line. In this part, there are fasteners for distributing the weight of the entire structure and a belt for fixing the trimmer on the belt of a person using the trimmer for its intended purpose;
• Bottom part. It houses the gearbox and cutting elements, which are hidden under a practical cover to protect the user. The casing provides an increased level of safety, preventing large fractions of debris, stones and glass from entering a person while working with a petrol cutter.

Knowing exactly the internal structure and the principle of operation of the trimmer, you can independently carry out repair measures for the structure or replace individual components that have become unusable, using the repair instructions.

The most common and common failures of the unit that need to be corrected on their own include the following problems:

• engine malfunction, due to which the brushcutter does not start and does not work;
• increased vibration of the brushcutter bar, which complicates its intended use;
• increased overheating of the gearbox, its accelerated heating during operation;
• slow and weak functioning of the cutting line at insufficient speed;
• clogging of the starter grille, causing overheating of the engine and its refusal to work;
• fast and frequent clogging of the carburetor due to the use of low-quality fuel;
• clogging of the air filter due to non-observance of the measures for the care of the device.

All these problems can lead to the fact that the device will lose its working capacity. Before ordering the necessary spare parts for the mowing, a visual inspection and diagnostics of the device should be carried out.

Particular attention should be paid to individual spare parts and units of the device, to check them you will not have to contact a professional master, a set of diagnostic measures will help you to identify the consequence of a loss of performance with your own hands.

If the trimmer motor does not start or stalls immediately after starting, when the gearbox overheats or during the operation of the device, extraneous noises are heard and vibration is clearly felt, it is important to visually inspect and identify a non-working unit.

To optimize the preparatory measures before repairs, you should carry out a simple diagnosis and check in stages:

• the presence of fuel in the tank and lubrication in the main units;
• serviceability of the spark plug and its performance;
• the cleanliness of the fuel and air filter of the brushcutter;
• clogging of the outlet channel and breather of the device;
• the quality of the fuels and lubricants used.

To determine the functional efficiency of the petrol-cutter's ignition, it is necessary to determine whether the spark plug is working by testing the appearance of a spark when it comes into contact with the body of the functional device.

The spark plug itself can be replaced with a new one, having previously dried the candle channel, if necessary, the old element is also dried, cleaned with special devices and returned to its place.

In the process of inspecting the carburetor, it is worth paying attention to the possible leakage of the fuel used; to identify problems with the carburetor, the following measures must be taken:

• purging the fuel hose to eliminate possible blockage of the element;
• checking and replacing the gasket between the engine and the carburetor;
• determination of tightness and maintenance of constant pressure in the unit.

If necessary, you can personally disassemble and thoroughly clean the unit using gasoline, the jet and channels are cleaned using compressed air.

The gearbox transmits torque from the motor shaft to the cutting tool, its gears during operation must be absolutely clean and always lubricated with special grease.

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Carrying out a technical inspection on your own once a season will allow you to get rid of the need to repair the gearbox or replace it, with the purchase of an expensive new unit.

The starter is necessary to bring the trimmer into working condition, its diagnostics consists in checking the tension of the starter cord connected to the teeth of the starter coil, which are often destroyed during an abrupt start.

A non-working starter in a petrol cutter cannot be repaired; it must be replaced with a working unit as part of a mandatory technical inspection or a set of repair measures.

Cutting elements require special attention and care, which must always be cleaned of dirt and cut grass after use. Regular inspection and thorough preparation of the device for operation will help to avoid costly and time-consuming repairs, and always be confident in the performance of the petrol brush.

An indispensable tool for a modern summer resident or owner of a private house is a petrol cutter, which allows you to effectively and efficiently put the adjacent territory in order. The period of active use of brushcutters is in late spring until October. Modern units are equipped with powerful and durable internal combustion engines, reinforced transmission and main components. Despite this, physical wear, manufacturing defects or improper operation lead to failure of the trimmer. In order to repair the trimmer with your own hands, you must have at least basic knowledge in the field of technology and little experience in repairing it.

The main unit of any gasoline tool is the internal combustion engine (ICE), which, through various methods, transmits the torque to the actuator. In a modern petrol cutter, a duralumin rod (pipe) is used as a transmission element between the engine and the trimmer head, inside which the drive shaft is located.

Thanks to the high-revving engine, the line speed can reach 13 thousand revolutions per minute, depending on the manufacturer of the scythe. In order to exclude mechanical and thermal damage to the gearbox, a special hole is provided in its housing for the introduction of grease in the form of ointments. To make the headset easier for the owner during long-term work, all brushcutter models are equipped with a durable shoulder strap.

Regardless of the manufacturer, almost every model comes with a line and steel knives.

The cross-section of PVC trimmer line can vary from 1.5mm to 3.0mm.

Made of durable polymer, it is subject to intense wear and tear during mowing and, as a result, breakage. Therefore, from time to time it is necessary to check the presence of a fishing line in the head and, if necessary, replace it. It is recommended that you purchase an extra bobbin to quickly replace it with a spool with no line.

ICE trimmers on the market today are equipped with a D-shaped, U-shaped or T-shaped handle, where the main controls of the unit are located. For example, in a braid with a U-shaped grip, the throttle key and stop / start toggle switch are located on the right grip. In the D-shaped version of the handle, the throttle control button is located directly on the rod.

Due to the presence of many components and parts, repairing a trimmer with your own hands means eliminating breakdowns that prevent its normal operation. It should be noted the most basic malfunctions of gasoline streamers:

1. The trimmer motor is not picking up speed;
2. Breakdown of the cylinder-piston group (CPG);
3. Ignition malfunctions;
4. There is no connection between the internal combustion engine and the trimmer head;
5. Mechanical knocking during unit operation.
6. Repair of the central piston group petrol cutters

The main unit of any internal combustion engine is a cylinder-piston group (CPG), which can fail due to wear of parts of parts or poor quality of the fuel mixture.

Lubrication of rubbing units in a petrol brush is carried out by adding a certain proportion of oil to gasoline. This process can be disrupted due to old oil precipitating out. In this situation, when starting the trimmer, the motor overheats and in a matter of minutes the most expensive breakdown occurs. To eliminate the malfunction that has arisen, a complete replacement of the CPG will be required, namely: the piston, oil seals, cylinder and piston rings. If you are not an ICE repair technician and do not have experience working with technicians, then you will hardly be able to fix the engine without the help of a specialist. Details on the stages of piston trimmer repair can be found here.

If the ignition of the petrol mowers fails, the spark on the candle disappears and, as a result, the fuel mixture does not ignite.

Spit spark plug design

In this situation, it is quite important not to rush to replace the coil, since the cause of the breakdown may be the lack of contact in the switch on the control handle.

An important point when troubleshooting the trimmer ignition will be the section diagnostics, where the distance between the side and center electrodes should be 0.5-0.7 mm. In addition, it is necessary to pay attention to the steel O-ring on the spark plug, the loss of integrity or deformation of which can lead to etching of air from the combustion chamber and, as a result, reduce the power of the streamer.

Ignition flywheel with coil

If the replacement of the check of the electrical circuit, the spark plug and its contacts did not give positive results, then you should pay attention to the trimmer ignition module, namely the clearance with the flywheel. Regardless of the design features and the manufacturer of the brushcutter, the distance between the ignition coil and the flywheel should be no more and no less than 0.2 mm. To restore the optimal value of the gap, you will need to loosen the coil mounting bolts and set the trimmer ignition with a special measuring probe.

A clear sign of a malfunction of the engine power system is the absence of traces of the fuel mixture on the spark plug electrodes, which may be associated with the following defects:

Trimmer Fuel System Components

• due to a clogged hole in the gas tank, a vacuum is created, which prevents the normal flow of gasoline into the carburetor;
• due to the poor quality of the fuel and the ingress of foreign particles, the fuel filter installed in the tank is clogged;
• non-flow of the mixture into the combustion chamber as a result of a clogged carburetor.

You can quickly determine the cause of the malfunction by dismantling the fuel hose leading to the carburetor. If the fuel mixture flows out in a thin stream, then you should pay attention to the carburetor. If there is no jet, it is necessary to clean the breather with a thin needle (a small hole in the gas tank cap) or replace the fuel filter.

If fuel enters the carburetor, it must be cleaned or adjusted. Adjusting the carburetor trimmer means restoring optimal fuel mix.

Trimmer carburetor with adjustment screws

To do this, pay attention to three adjusting screws: maximum speed (H), minimum (L) and idle speed (LA). To start the adjustment, you need to fully tighten the screws H and L and loosen one turn each. Then we start the braid and let it warm up for 10 minutes to adjust the power system in operating mode. After warming up the internal combustion engine, press the gas supply button until it stops (12,000 rpm). We restore the idling mode by unscrewing the screw LA. As soon as the trimmer head starts rotating, tighten the screw until it stops.

One of the frequent faults of the petrol mowers is the incorrect operation of the internal combustion engine, namely the drop in power when the speed increases (the scythe stalls).

The reason for this is that the exhaust system is clogged with burnt oil particles. Often manufacturers make mufflers prefabricated and cleaning is quite simple. If the design of the spark arrester is non-separable, then it must be placed in water with detergents, and then dried with an ordinary or industrial hair dryer. Frequent clogging of the exhaust system indicates non-observance of the proportions of oil and gasoline.

A petrol or electric trimmer is the only solution for mowing grass in hard-to-reach places that a wheeled lawnmower cannot handle. As a cutting tool in trimmers, metal knives or a special fishing line are used, which is tucked into the trimmer coil. But, unfortunately, trimmer heads become unusable over time during operation. Some malfunctions can be eliminated by hand, and some require a complete replacement of the mowing head.

Trimmer mowing heads come in a variety of designs, both simple and complex. The picture below shows semi-automatic trimmer head from Husqvarna brushcutters disassembled.

This type of head is present in the complete set of most mowers and electric trimmers, such as Stihl (Calm), Patriot (Patriot), Champion (Champion), Bosch (Bosch), Huter (Hooter) and others. The device of the mowing head is quite simple. It includes the following details:

• mowing head base;
• button for semi-automatic cord feed;
• bobbin (spool) into which the fishing line is tucked;
• spring;
• eyes - through them the line comes out;
• trimmer head cover;
• fishing line (cord).

There are also simpler trim heads shown in the following photo.

All these attachments do not allow changing the length of the line in a semi-automatic mode (after pressing a button). If the cord breaks, you have to stop the mower and change it manually.

Users of electric trimmers and petrol cutters often face a problem with a semi-automatic mowing head. Coil malfunctions can be as follows:

• the line does not lengthen automatically;
• the cord spontaneously comes out of the reel.

If the line does not lengthen when you lightly hit the trimmer spool button on the ground, then the reasons for this may be the following.

Option 1 - a bite has occurred, i.e. clamping the cord between turns... This problem usually appears if the user has been winding the line on the reel unevenly, with intersecting turns, or winding it with insufficient tension. In the latter case, when the mowing head rotates at high speeds under the influence of centrifugal force, the cord begins to tighten, as a result of which inter-turn clamping of the fishing line is possible. To fix the problem, you will have to disassemble the coil on the trimmer and rewind the cord correctly, that is, in even turns with good tension.

Option 2 - too short ends protrude from the head... The line may not come out when hitting the ground if the ends sticking out of the head are not long enough (short). In this case, the centrifugal force is not enough to stretch the line. Therefore, it is required to stop the unit (turn off the engine or disconnect the electric trimmer from the mains) and pull out the line manually after pressing the button.

Option 3 - the line is soldered inside the mowing head... This causes the coil to lock and not spin when the button is pressed. Basically, this happens for several reasons: poor quality of the cord, overheating of the coil during prolonged operation of the unit, hitting the line against solid objects.

1. In the first case, third-party cord can be made of low-quality and low-melting materials that cannot withstand mechanical and thermal stress. Therefore, you should give preference to "branded" lines.
2. But, if you nevertheless purchased a fishing line of unknown quality, and it is often soldered during operation, then you can follow the example of some users who, after threading the cord into the reel, wet it either silicone grease (from a spray can), or mineral oil. This procedure greatly reduces the likelihood of the coils of the fishing line being soldered together.
3. Also, the line can be soldered if it hits a hard object (stone, fence, dry branch, etc.) during mowing. As a result, it stretches slightly and is pulled back into the head at high speed. From friction, the cord heats up, and its turns stick together. The only thing that can be done to eliminate this malfunction is to open the trimmer coil and rewind the line.

There are situations when the trimmer user notices very fast line consumption... However, he never hit the ground with a button to lengthen the line. The reason that the line spontaneously lengthens, being cut on a special knife on the casing of the apparatus, may be no spring in the mowing head. Often, novice users of mowers, trying to load the line into the reel, forget to install the pressure spring in the head, or completely lose it when opening the lid, and in the future, do not even know about its existence.

Also, the line can be lengthened without using a button if the spring is loose. If checking the spring has confirmed this fact, then several washers must be placed under it in order to enhance its clamping properties.

Trimmer owners, mostly newbies, find themselves in confusion, bordering on panic, when the need arises to change the cutter or line in the reel. Very often, when trying to unscrew the mowing head, users simply render it unusable, not suspecting that it is unscrewing in the opposite direction.... To prevent this from happening, if you need to replace the tool, we recommend that you read the step-by-step instructions below.

Stop the brushcutter engine or power off the electric trimmer before threading the line into the spool to avoid injury from accidental starting rotation of the cutting tool.

Unscrew the attachment attached to the gear shaft... To do this, the shaft must be fixed by aligning the holes on the washer and on the axle, and inserting a metal rod or screwdriver into them.

Unscrew the attachment. You should be aware that the thread on the shaft is left-handed. Therefore, turn the trimmer coil to the right, that is, clockwise.

Disassemble the mowing head. Most often, the head cover is attached on latches... To remove it, you will need to sink these latches into the case, squeezing the edges of the cover. If your trimmer has a semi-automatic mowing head with a button on the bottom, then the disassembly of the attachment should be done carefully, since you can lose the spring, which sometimes flies out when the cover is removed.

Cut off the required amount of line. Usually its length is 5 meters. Use a cord of the same diameter as indicated in the instructions for the tool. It is not recommended to exceed the maximum line diameter as this will result in increased engine load and higher gas mileage.

Find the midpoint of the line by folding it in half. This will create a loop.

Coils are cut inside special grooves (there may be holes). Insert a loop of line into this groove.

Wind the line around the spool by turning it counterclockwise. It is necessary to fill in the cord as evenly as possible, the turns should lie down without overlap and with good tension. When the winding is finished, leave free ends of the line about 20 cm long and fix them in the grooves on the sides of the reel.

Assemble the mowing head. Before you finally assemble the attachment, be sure to insert spring and washer (if available). Place the spool in the body and thread the ends of the cord through the holes or lugs.

Put on the cover and secure it with the latches.

Screw the adapter back onto the gearbox shaft, also securing it with a screwdriver. You will need to twist the trimmer coil to the left (counter-clockwise).

There are a large number of trimmer heads (not automatic) on sale, which are of low price and good quality. But sometimes situations arise, for example, in the country, when the trimmer coil has broken down and it is impossible to repair it, the store is far away, but it is necessary to mow. In this case, you can quickly, literally in a few minutes, make a simple trimmer attachment for fixing the fishing line from ordinary plywood with a thickness of 10-12 mm.

1. Take a piece of plywood or PCB and draw a circle about 14 cm in diameter on it.
2. Use a jigsaw or metal saw to cut the disc.
3. Drill a hole in the center of the disc that matches the diameter of the gearbox shaft. Do not forget to put a washer on it before installing the disc on the shaft.
4. Small corners can be screwed along the edges of the disc or 1-2 holes can be made on opposite sides. They will serve for threading the fishing line in them.
5. Several screws can be screwed into the plywood to secure the line.

This homemade mowing attachment is attached to the shaft. with a nut... It will not work to tighten or unscrew the nut without fixing the shaft. To replace the cord, it will be enough to loosen the screws, insert a piece of line of the required length and press it down again.

Also, a mowing attachment for attaching a fishing line to it can be made from a metal sheet. How to do this can be understood from the following video.

Well, a very useful article for owners of this tool or those who want to purchase it ...

Repairing the spool of a garden trimmer is a well-known painful topic for the owners of this tool, but here I dare say that I have found a worthy solution to the problem ...

In previous articles, readers probably remember how we proposed to modernize the trimmer coil by strengthening the holes for the fishing line, but, as practice has shown, after a month or two, the coil itself is either erased or cracked and scattered (familiar?)

And then trips for this spare part begin in different bazaars - shops, and even if you are lucky to find an option suitable for your trimmer, it is not a fact that the new coil will last longer than the old one, while its price will be about half the cost of the trimmer itself ... (familiar?)

Having gone through all these dances, the idea began to ripen in my head to buy a good large coil from an adult "thoroughbred" trimmer (motocross) and fix it on the axle of my trimmer through a homemade adapter (such coils are simply screwed onto the axles of their trimmers ...).

But when choosing such a coil, I noticed in time that they all have a left-hand thread, and my trimmer twists clockwise, in short, the idea failed ...

In the meantime, the next creative attempts were ripening -

I remembered that I once saw Boshevsky small trimer room with a reel for one antenna of a fishing line

and on the remains of the old coil I conducted a small experiment -

He mowed with such a fit for several minutes, mowed normally, but the line was frayed at the base (in the hole in the corner), and the corner itself was "picking" the ground every now and then ...

It was here that the confusion gave out an engineering thought, and after half an hour from the garage I was already carrying this creation to the test -

In a nutshell - screwed to the base of the old reel with self-tapping screws, two nuts are welded to the nozzle with holes - one under the fishing line, the other - a counterweight, the nut under the fishing line is processed with a smooth chamfer (in other words - a hole under the fishing line in the form of a smooth funnel)

I first loaded with such pieces of fishing line -

The result - I myself did not expect, everything was mowed and without any vibrations.

Then I went even further, bought a 3mm fishing line for adults motokos (faceted), you cannot tie knots on it, so I did this - we make a hole in the tip with an awl and insert a small boot stud -

After a month of testing, I can proudly say the following - I have never seen a better trimmer coil.

Firstly, it simply cannot be killed, the "coil" can crawl along the ground without any problems, any (random) stones do not care, (only sparks fly), and secondly, 500 Chinese watts with such a fishing line mow any grass.

Due to its thickness, the fishing line takes longer to take care of, I made such sections in advance, then I take a few pieces and go to mow, on average 3-4 pieces are enough for an hour of work.

The use of various electrical devices greatly simplifies the performance of many types of work, but unfortunately, all complex products break down sooner or later. Failure of the electric trimmer

will lead not only to the inability to carry out work in the garden, but also to significant financial expenses for repairs. It is possible to significantly save money and increase your own knowledge of the device of this technique if you do the trimmer repair yourself. Before proceeding with this type of work, you should carefully study the principle of operation of this type of household appliances.

The electric trimmer consists of:

• Enclosures with an electric motor.
• Detachable rod.
• Trimmer reel with protective cover.
• Shoulder strap rivets.

Electric trimmer device

A power cable with a plug is connected to the trimmer body, through which electric current is transmitted.In the cavity of the split rod there is a flexible shaft, due to which the torque is transmitted to the trimmer coil. The device is turned on by pressing the button located on the handle of the device.

This trimmer design is the most common, but

if desired, you can find products that operate on a battery, as well as with a lower location of an electric motor.

The trimmer can be damaged when working under increased stress. This situation can arise when the cultivated area is overgrown with tall grass.

When working in such areas, the engine may fail, the bearings may break, and the coil of the electric scythe will collapse. When operating in rainy or very foggy conditions, the trimmer may “burn out” as a result of a short circuit.

Damage to this electrical appliance can also occur as a result of frequent use. If the household appliance is used in this mode, then after operating a certain number of operating hours, it will be necessary to carry out mandatory repairs and preventive adjustment of many parts of the electrical appliance.

If the electric scythe does not show signs of life, then there may have been a break in the electrical cable inside the handle of the case, or the button for turning on the electric motor is faulty.

In order to diagnose an electrician, you will need to disassemble the handle of the electrical appliance. The work is performed in the following sequence:

• The control handle is removed from the electric scythe frame.
• The handle is disassembled.

When access to the inside of the electric trimmer is provided, the resistance of the electric trimmer button is measured using a multimeter. If there is no resistance after pressing, then this

the part is subject to mandatory replacement. It is also necessary to check the connection points of the power cable with the internal electrics located in the handle.

device. The contacts should be checked for open circuit with a multimeter. Often, such a malfunction can be determined "by eye". After detecting an open contact, it is enough to solder the damaged area to restore the operation of the electric trimmer.

In the absence of a multimeter, diagnostic work can be performed with an indicator screwdriver. For this purpose, connect the plug to the mains and using this diagnostic tool

find the "phase wire" and thus check the presence of electric current before and after the power button. If the phase current is detected in another electrical circuit, then it is enough to install the electrical plug on the contrary in the outlet so that correct diagnostics can be carried out

trimmer malfunction. The second diagnostic option should be done with great care, since there is a danger of electric shock when checking the integrity of the wiring.

If the power button of the device and the sections of the internal wiring are intact, then you should start checking the electric motor. For this purpose, it is necessary to remove the housing cover, having previously unscrewed several screws with a screwdriver.

The first thing to do after accessing the electric motor is to check that the brush assembly is working properly. If the brushes are worn out above the maximum permissible value, then the electric motor may stop completely or work unstable. In the case when the brushes and the collector are in perfect order, you should start “ringing” the motor winding. In order to eliminate the likelihood of breakage in both circuits, you should alternately carry out

checking the stator and rotor of the motor. To perform this operation, you must:

• Remove the engine from the electric scythe.
• Switch on the multimeter in resistance measurement mode and check all collector plates for breakage. When checking, there should also be no significant deviations in the readings of the diagnostic tool.
• Check for breakdown of the rotor winding to ground. For this purpose, connect one probe of the multimeter to the rotor “ground”, and the other to any collector plate. The multimeter must be set to measure resistance over 1 MΩ. The resistance of a working motor between the winding and “ground” should be very high.
• Measure the resistance value of the stator winding. If there is no resistance, then we can state in this case its malfunction.
• If the stator wiring is in perfect order, then a check is made for a possible breakdown on the case, in the same way as when diagnosing the stator.

When checking in this way, it is possible in 90% of cases to establish the cause of the malfunction of the electric motor. It will not be possible to check for an interturn short circuit, which can manifest itself only during the engine operation, thus it will not work, but such a malfunction can be diagnosed

by indirect signs, which are manifested in a decrease in the power of the electric motor and its overheating. If the electric motor is equipped with a thermal relay, then such an electric scythe, with an interturn closure, will work for a short time, after which the trimmer will automatically turn off. In some cases, the thermal relay can cause a malfunction of the trimmer motor, therefore, in a set of test

measures should be included "ringing" of the thermal relay using a multimeter or tester.

It is very simple to do this: in good condition, on a cold engine, the thermal relay passes an electric current,

In a malfunctioning state, the electrical circuit will be open.

Problems with the performance of electric scythes associated with wire breaks can be easily eliminated by soldering the contacts, but if the motor "burned out", then you will need to perform a complex rewinding process, which can

carried out by a qualified technician only. In many cases, it is much easier and cheaper to purchase a new engine and install it in place of the burned out one. This work can be done independently

in the reverse order of removal of the unit.

If the trimmer electrician is in good working order, then you should pay attention to other types of malfunctions that may appear during the operation of the electric trimmer.

If the electric motor of the device turns on, but the bobbin with the line does not rotate, the causes of such a malfunction may be the breakage of the flexible shaft transmitting the torque. This problem is especially often manifested with improper care of the electrical appliance. For example, in the absence of lubrication inside the rod of the electric cable, the cable will be exposed to excessive friction and within a short time this part will fail. For replacement, it is enough to disconnect the upper part of the electric braid, in which the electric motor is located, after which it will be possible to remove the flexible shaft from the rod.

If there are difficulties with the removal of the second part of the cable remaining in the cavity, the lower part of the spit is disconnected with the bobbin and shaft. The assembly of the mechanism is carried out in the reverse order.

Bottom trimmer

The flexible shaft must be thoroughly lubricated with grease prior to installation to reduce the chance of repeated failure of this part.

Electric scythe shaft bearing

Flexible shaft rupture can only occur on top-engine electric trimmer models.

Electric scythes with a lower engine location do not have a flexible shaft, but malfunctions of such devices can manifest themselves in the form of destruction of the bearing of the main shaft of the electric scythes on which the bobbin with fishing line is installed.

To fix such a malfunction is very simple, it is enough to replace the failed bearing with a new part.

With frequent use and improper care of the electric scythe, the listed malfunctions can appear with enviable regularity. To minimize the likelihood of breakage, it is enough not to overload the device, lubricate rubbing parts in time and do not work in high humidity. Despite some restrictions when working with this device with an electric trimmer, unlike petrol trimmers, there can be no malfunctions in the ignition unit. And such a malfunction as: "the trimmer motor immediately stalls", in principle, can not be. The motor of the electrical device cannot stall because it does not need to be started. To start, just press the power button, so many summer residents choose electric trimmers to care for the surrounding area.