DIY brushcutter repair

The electric hedge trimmer (trellis shear) is probably the most time-saver of any mechanized garden tool. However, to prevent serious accidents, this tool must be properly cared for and handled with great care. There are battery-powered brush cutters and there are mains-powered brushcutters.

In principle, a hedge trimmer works like a regular garden shears, but the "scissor" action is achieved by means of two long metal blades with protruding or notched teeth.

Rice. one Brush cutter device

The electric motor rotates a pair of large gear wheels that move the blades back and forth. This rapid reciprocating motion opens and closes a series of cutouts that perform a small but effective shearing motion at hundreds of cycles per minute.

For safety reasons, all modern brushcutters are equipped with two separate engaging handles that must be pressed simultaneously for the machine to work. This keeps both hands busy, preventing a hand from getting close to the blades behind a sturdy plastic guard or guard.

Before plugging in, check bushes or hedges for any foreign objects or possible obstructions such as poles or wires that could damage the blades. Unfold the power cord and place it over your shoulder. Don't let the cord pass through the bushes.

Stand firmly on two feet, grip the tool with both hands, and with the blades pointing away from you, turn on the machine.

Start by trimming the top of the bushes, then shape the sides from bottom to top. If necessary, you can use a rope as a guide so that you can trim the bushes evenly.

When you are finished, unplug the hedge trimmer or its batteries, sweep debris from the blades and wipe the body with a dry cloth. Clean the ventilation grilles with a brush.

Clean off the remaining and dried juice on the canvases with a cloth or sponge swab dipped in white spirit, and then wipe the metal with a rag.

Rice. 2 Remove dried juice with white spirit

Finally, apply some spray lubricant to the blades and turn on the hedge trimmer for a few seconds to distribute the oil evenly.

Remove excess grease before placing the protective cover on the cutting body of the tool.

Have blunt or damaged blades replaced by a workshop.

Switch off the brush cutter immediately and unplug it from the outlet, continued use may be dangerous and could seriously damage the motor.

Check the tightness of all nuts, screws and bolts. If the vibration persists, contact the service center.

Rice. 4 Check tightness of nuts and screws

This can happen if you are working at the limit of the length of the cord.

This is often the case with mains powered brushcutters. Since the tool is double insulated and plugged into an RCD protected outlet, the cord can be cut without even realizing it.

Some hedge trimmers may require a new cord with special connectors - change this cord at a service center. On other models, the power cord plugs into the available screw terminals, in which case you can replace it yourself.

1. Some hedge trimmers are equipped with a terminal board cover to facilitate cord replacement.

Rice. 5 Remove the terminal board cover

1. Notice which terminal is suitable for the phase wire in (brown), and which terminal is zero (blue). Unscrew the terminals and remove the ends of the damaged cord.

Rice. 6 Disconnect the damaged cord

1. Prepare a new cord for connection. Place the protective sleeve on the cord and connect the wires to the appropriate terminals.

Rice. 7 Connect a new cord to the terminals

Make sure the cord is securely fastened before replacing the cover.

If the blades are jammed while using the hedgecutter, switch off the machine immediately and disconnect the plug or the batteries from the tool.

Trim and remove any thick branches stuck in the teeth, then brush and lubricate the blades - cm.

The thermal protection built into some hedge trimmers can be triggered if the motor overheats. Remove, for example with a brush, any debris from the ventilation openings and allow the engine to cool so that the thermal protection will automatically shut off.

In general, it is best to check and change the suspicious switch in the service. However, if your model is the same as shown here, you can test the mechanical action of the switch.

Unplug the tool from the outlet and place it on a workbench or table so that you can remove the screws holding the two halves of the body. Be very careful not to move the inner elements until you have made notes of their location.

1. Carefully remove the metal rod - the switch lever that connects the switch handles to the switch itself.

Rice. eight Remove the switch lever

1. Turn the switch on and off manually. A click should be heard and the mechanism should run smoothly.

Rice. 9 Turn the switch on and off by hand

1. The type of switch shown here is easy to dismantle and replace. All other designs require specialist work.

Rice. 10 Replace entire breaker module

Worn or sticky brushes can interfere with motor operation. Replace brushes or have the motor checked at a service center.

Vibration can weaken electrical contacts. Check internal wiring and connections.

Rice. eleven Check the reliability of the contacts

If other devices in the same circuit stop working, check the shield: if there is a blown fuse or a tripped circuit breaker or RCD.

Make sure the tool is plugged into a power outlet and that there is electricity at the outlet.

Replace the fuse in the plug. If the fuse blows again when you turn on the brush cutter, have it checked by a service.

If possible, disassemble the plug and check if it is properly connected.

If the brush cutter does not turn on or is intermittent, there may be an open in the power cord. If the cord is connected to screw (or simple crimp) terminals, check the cord for an open and replace if necessary. Double insulated tools are connected with a two-core cord.

If the cordless hedge trimmer does not turn on, try charging the battery. Do not allow those batteries to discharge completely, as in some cases this can lead to its complete failure. Recharge the batteries as soon as the operating speed begins to drop significantly.

An electric or gasoline hedgecutter that works well, no malfunctions, is a pleasure for the gardener and a great time saver.

In order for the hedge trimmer to be useful and not pose a threat, it is necessary to handle it correctly and repair it in time.

• disconnect the brushcutter from the electrical outlet or remove the batteries;
• sweep away debris and wipe the body of the brush cutter with a cloth;
• clean the cutting blades with a rag soaked in white alcohol, then wipe dry;
• apply lubricant to the blades from a can and turn on the brush cutter for half a minute to evenly distribute the lubricant;
• Remove excess grease with a cloth and place the brush cutter in the cover.

What malfunctions of the brushcutter can be noticed when using:

• hedge trimmer does not cut branches well;
• the brush cutter vibrates strongly;
• the brush cutter stops during work;
• the brush cutter will not start.

If the hedge trimmer does not cut branches well, then the cutting blades have become dull from prolonged use or damaged from the ingress of a foreign object.

The hedgecutter's cutting blades can be replaced at a garden equipment repair shop.

Handling a vibrating brush cutter can lead to accidents. In addition, vibration will quickly wear out the brushcutter's motor.

Sometimes the hedge trimmer stops right in the middle of the work.
Possible reasons for stopping the brushcutter:

• the plug fell out of the socket because the power cable was pulled too tight;
• the hedge trimmer cable has been cut;
• seize the cutting elements of the brush cutter;
• the brushcutter motor has overheated and the thermal protection has tripped.

If a cord with special connectors is cut, the cord must be replaced by a gardening workshop or service center.

In other hedgecutter models, you can replace the cable yourself.

If the cutting blades of the hedge trimmer stick, disconnect it from the power supply, remove the stuck branches and apply lubricant to the blades.

There may be various reasons why the brush cutter will not start:

• the switch of the brush cutter has broken;
• malfunction in the engine;
• weak electrical contact;
• blown fuse;
• plug connected incorrectly;
• the cord broke;
• the battery is discharged;
• there is no gasoline or a defective spark plug in the gasoline brushcutter.

If an electric or gasoline brushcutter does not start, stalls or jams, and you cannot fix it yourself, bring the brushcutter to an Alfa-Rost repair service center. Experienced specialists will repair the brushcutter and fix problems in a short time.

Very often, complaints from owners of gasoline trimmers are associated with various kinds of carburetor malfunctions. Of course, in this case, it is best to seek help from specialists in this field, for whom the repair of carburetors of gasoline trimmers is an integral part of the profession. However, if you are still familiar with the basic principles of the trimmer carburetor, you can try to figure out the problem yourself, so as not to overpay money in the service, since sometimes the breakdown can be really frivolous.

This article is just intended to help you deal with the problem.

Next, we will analyze the most common breakdowns and the reasons for their occurrence.

The first step is to generally inspect the carburetor and find out if there is any fuel leakage.

If it turns out that there are no problems with fuel, it is necessary to remove the carburetor from the engine and check the condition of the gasket located next to the carburetor.

If no malfunctions are observed here, you can try to check the carburetor for tightness.

To do this, you can purchase a special device, which is part of the tool kits for repairing the carburetor repair of mowers and representing a special pressure gauge that, in fact, checks the tightness.

If you don't want to spend money on its purchase, you can use a conventional medical tonometer, on which you just need to change the pressure gauge.

When using this device, pay attention to the indication.

If the pressure does not drop and remains the same for a long time, you can rest assured, as this indicates the tightness of the carburetor.

If the pressure begins to decrease after a certain time, then there are still problems.

They can be associated with damage to any parts of the carburetor.

Before running to the nearest repair shop or specialty store selling trimers and spare parts, try to figure out the problem yourself. Sorry for the banality, but the brushcutter carburetor is not a spaceship of an extraterrestrial civilization, and it is quite possible to repair it with your own hands. To be confident in your actions, read the step-by-step instructions provided in this article.

A visual inspection of the carburetor will help detect fuel leakage and air leakage, but the main reasons for the failure of the device lie inside. Therefore, in order to determine and most importantly fix the breakdown, the carburetor must be disassembled.

It does not take much effort to disassemble the carburetor of the brushcutter.

It is enough to unscrew four screws on one side

and two on the other. This can be done using a regular Phillips screwdriver. Unscrew the screws carefully and fold them to the side. They may be needed during assembly. It is advisable to cover the table with a white cloth before disassembling so that you can see everything, even the smallest details that may fall out during disassembly.

We start disassembling from the side of the fuel supply system.

We remove the primer - a pumping bubble, which is remarkable, it is simply impossible to install the carburetor parts incorrectly during assembly. Products have characteristic ebb and flow.

Now we remove the membrane. It is she who performs the function of pumping fuel into the carburetor.

When the membrane vibrates, the other side exerts pressure on the rocker of the mechanism and the needle rises, which, in turn, opens the hole and fuel is supplied.

Remove the carburetor cover with the injection mechanism.

Further, another membrane is installed. We carefully remove it.

There is another gasket under the membrane. We also carefully remove it, without damaging it in any way.

Next, we move on to dismantling the parts from the back of the carburetor. As mentioned earlier, we unscrew the two bolts. This is already an air supply system.

A valve is located here, which, when gas is added, opens and increases the flow of air into the engine.

After removing it, a bare body remains in the hands. The carburetor is disassembled.

Identification of faults and their elimination

Now it is worth paying attention to the problems that occur during the operation of the carburetor and how to fix them.

The first thing that happens is that the holes and jets in the fuel supply system are clogged with dirt. Filters installed in the tank and directly in the carburetor do not help. They still allow small particles to pass through, which cause brushcutter failure.

Now we need to get the needle.

To do this, unscrew the bolt on the mechanism, holding it with your finger. The fact is, there is a spring there and a careless action will lead to the fact that it is lost.

We take out the needle, see photo and spring.

How to purge. The most effective way is to use an ultrasonic bath.

It is filled with either a special liquid or gasoline, a carburetor is placed there and under the action of ultrasound, the so-called cavitation effect, the channels are cleaned of contamination.

The second option for cleaning is compressed air.

You can use the compressor available on the farm and clean the carburetor channels. However, this method is effective if the contamination is not very large.

If there is neither an ultrasonic bath nor a compressor at hand, then cleaning can be done in the third way using a special cylinder for cleaning the carburetor. They are sold in almost all car dealerships and supermarkets. The price is not high and is about $ 2-3. Enough of such a cylinder for 4 or 5 purges.

Now we need to blow through the channels in the body and carburetor cover. See photo.

Another particle of dirt can get stuck under the needle. See photo. This will also lead to brushcutter failure.

Important! When cleaning the carburetor, never use needles, pins or wires.Even the slightest scratch will damage the carburetor. It will have to be changed entirely.

It is located on the carburetor cover and is a fine metal mesh. Its pollution occurs very often. This is due to the deposition of oil, additives, dirt on it.

Sometimes, when disassembling on the nets, a certain film is found. Therefore, the carburetor does not have enough fuel and the brushcutter either does not start or works intermittently. The cleaning methods are identical to the first reason: an ultrasonic bath, a compressor or a spray bottle with a special solution. In addition, if the mesh is clogged thoroughly, you need to take a soft brush for watercolors, soak it in gasoline and rinse it gently without damaging it.

They have the ability to wear out during operation. From prolonged use, they deform, stretch, lose elasticity, low-quality fuel corrodes them, and can no longer perform their functions well. This also applies to the needle itself. The fact is that it is covered with a thin layer of rubber, which wears out during operation and can no longer fit tightly into the hole. The brushcutter starts to work intermittently. To eliminate such a breakdown, it is necessary to replace all worn out parts. Where can I get them?

In specialized gardening equipment stores, a carburetor kit for a brush cutter of a certain model is sold. The cost of such a repair kit ranges from 40 to 60 hryvnia.

It includes two diaphragms, a gasket, a needle valve and a spring.

All wear parts of the carburetor can be replaced. Therefore, you should not rush and buy a new one, and you do not need to run to the workshop either, repairs are within the power of any brushcutter user. Professionals claim that the quality of the components in the repair kit even exceeds the characteristics of the native carburetor parts. Therefore, a well-repaired unit will perform better than a new one.

In addition, the bubble button for manual fuel pumping may fail. The impact of gasoline on it leads to the fact that during prolonged operation, the rubber corrodes and it begins to stick together or, under the influence of low temperatures, for example, during storage, it bursts. The button should also be replaced if necessary. In addition, its cost is small and will not affect the size of the repair budget in any way.

Based on the foregoing, it can be concluded that there are only three main carburetor malfunctions: clogging of channels, contamination of the fine filter and failure of components. In the first two cases, cleaning is enough, and in the third, a repair kit will help.

Assembling a brushcutter carburetor is a snap. All actions must be performed in reverse order:

Install a spring and a needle valve in the carburetor cover. Hold the spring with your finger and tighten the mounting bolt.

Screw the shutter of the air supply system to the product body with two screws.

Turn the carburetor over and go to the fuel system assembly. First you need to put the gasket.

Install the carburetor cover.

Install the main diaphragm.

Install the plate with the manual fuel pumping button and tighten the four screws.

The carburetor is assembled and ready for further use.

For the first time, repairing a brushcutter carburetor may seem like a complicated process, but if you have to disassemble it a second time, then this procedure will not cause much difficulty.

If you did not find any of the listed problems in your carburetor, it is recommended to contact a specialized service for help.

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 the 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 do 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 step by step:

• 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.

• 

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.

An inoperative 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.

The benzokos is one of the most important tools for summer residents, and indeed for owners of private houses. The main purpose of this unit is to mow the grass in the backyard, turning it into a beautiful, soft, ideal lawn. But before starting to work, the device needs to be lubricated, that is, those parts that rub against each other in it, it is also necessary to replace the cutting parts, and pour fuel into the tank. If problems with the engine are identified, it is necessary to repair the petrol brush with your own hands, and for this you need to thoroughly understand its structure and the essence of its functioning. This is all, as a rule, set out in the owner's manual, which is attached when you purchase a chainsaw.

In this case, it is necessary to check if there is fuel in the tank. Be sure to use only high-quality A-92 gasoline for your device so that it does not break down and will serve you for a long time. You can buy fuel at any gas station. For example, in the same place where you refuel your car.If you save money and buy cheap fuel, as a result, the cylinder-piston group may be broken, and its repair is very expensive for mower owners! It can make up a whole third of the total unit price. It is also very important that the oil / gasoline mixture is properly prepared. The user manual of the unit must indicate the proportions in which this mixture should be prepared. Do not use too much fuel mixture. The thing is that if you store it in this form for a long time, it will lose most of its properties. Therefore, fill the brushcutter with fresh mixtures.

The mower may need to be repaired if the fuel filter is dirty and the engine will not work properly. If you find a problem with starting, check the condition of the fuel filter. If necessary, it should be replaced. The inlet pipes must never be without a fuel filter!

• 

The air filter also needs to be checked. If it is too dirty, it must be removed, flushed with fuel and reinstalled. If you are at home or at your own summer cottage, this filter, of course, is washed with water, you can even use detergents. Next, the filter must be rinsed well, squeezed out and dried. When it is dry, it should be slightly moistened with the oil that you use to prepare the fuel mixture. If you have applied too much oil, it's not scary, the excess can be removed by squeezing the filter well with your hands, as if squeezing it out. The removed cover must be replaced and reattached.

The engine may not start if all of the above methods are checked and followed. In this case, it is worth adjusting the idle speed while tightening the carburetor screw. In the video about repairing petrol cutters, the essence of performing these procedures is described in more detail.

• 

And so, we will tell you about the ways to start the device, if you already need to perform work!

1. Repair of the carburetor petrol cutters. Place the device on one of the sides with the air filter pointing up. If this is how the unit is positioned, the mixture enters the carburetor (or rather, its bottom). Before starting the engine, remove the air filter, then pour literally a little mixture into the carburetor, and then reinstall the parts. In this case, the engine will literally start very quickly.

• 

2. If the 1st option still does not work, then the essence of the breakdown lies in the candles. They should be checked by unscrewing how efficient they are. Dry the combustion chamber thoroughly. And a candle that does not show any sign of working capacity must be replaced.

3. This method is also possible. It is necessary to close the air damper and pull the handle once. After that, you need to open the damper and pull the starter a couple of times. This must be repeated up to 5 times.

Some people pull the handle so hard, as a result, it is necessary to repair the starter motor of the petrol cutter.

Be sure, most importantly, to strictly follow the rules written in the user manual for the device, which is attached to each unit, when buying in a store. And then you will not be afraid of either the repair of the petrol cutter gearbox, or any other types of breakdowns!

Petrol trimmer starter repair may be required at the most inopportune moment. In this case, the problem can be solved in two ways: replace the broken part or change the entire unit. The latter option will cost more. To repair the device with your own hands, in most cases, you only need a screwdriver with the appropriate tip from the tools. Repair work does not take much time and does not require any special knowledge. It is enough to know the device, the principle of operation, the nuances of assembling and disassembling the starter on the trimmer in order to achieve the desired positive result.

Gas engine - this, in principle, is the main part of the brushcutter. Its power lies in the range of 0.5-2.5 hp. The movement from it is transferred to the shaft, which is inside the hollow rod, and then through a gearbox consisting of gears, already a fishing line or knife (working body).

The petrol brush also has the following elements:

• protective casing;
• lever;
• belt designed for the convenience of using the device;
• starter used to start a gasoline internal combustion engine.

All details of the brushcutter are presented in the photo below.

The trimmer starter is the integral part that starts the engine. He is shown separately in the two photos below.

Starter mechanisms of various models of petrol cutters work on the same principle: During the start of the internal combustion engine, the protrusions marked with 1 in the photo above engage with the pawls 3. When the engine starts to work, they return to their previous position due to the influence of centrifugal force. Wire 2 also plays a similar role.

The process of returning to the initial position of the elements of the mechanism occurs due to the presence of a spring wound around the axis. It unfolds when the rope is pulled. After releasing the cord, it is pulled in and wound up due to the coiling of the spring. During the start of the internal combustion engine, the petrol mowers, the starting mechanism turns its shaft until it starts to work (starts).

Today, gasoline brushcutters are equipped with starter mechanisms of two types:

The first option is much more common.

The trimmer starter can operate without breakdowns for a long time. It is impossible to clearly indicate the period of uptime. Everything is determined by the initial quality of the device and adherence to the rules for handling it.

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

• break of the cord (rope);
• when the spring breaks or disengages.

These details are shown in the photo below.

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

To repair the trimmer starter, you will first need to disassemble it and then assemble it. This process is not particularly difficult. For work you will need screwdriver with a tip of the desired shape.

Everything should be done carefully, observing safety precautions, mainly so that the spring does not injure the master in case of an accidental departure.

The launch mechanism is disassembled in order to install new parts instead of broken ones in the following sequence:

• unscrew the screw fixing the pulley with the starter cover with a screwdriver;
• take out the spring and antennae;
• carefully remove the pulley (you need to turn your head away or work, wearing glasses and gloves first);
• determine why the trigger is broken;
• if the spring has collapsed almost completely, then it is replaced;
• when the spring comes out of the hook, it is installed in its original place, bending the antennae in front of this (the photographs show the laying process);

• after the spring plate is installed inside the groove, twist it carefully.

To change the spring, you must work carefully and carefully: it can accidentally burst under the influence of the force caused by installing it in place. Even if you carefully remove the roller, the spring strip very quickly flies off the reel and can injure your hand with its sharp edges.

It is not always possible to immediately put the spring plate in its original place. It often slips, so attempts must be repeated until the desired result is achieved.

The assembly of the starter unit is carried out in a number of stages:

• the coil is turned over, setting it so that the spring bend fits exactly into the groove of the body, as in the photo below;

• two washers are placed, between which a spring is placed;
• put in place the cup with the antennae;
• tighten the screw (photos below).

When doing the above manipulations, it is imperative put two washers... If this is not done, then the spring will damage the plastic cup over time, and when it is pulled up, wedging will begin. Because of this, there is a feeling as if the spring has flown off. To eliminate this drawback, you need to install this part of a greater length or an additional washer.

When such parts are not available, you can just unscrew the screw, and the starter unit will start working without wedging. But this option is temporary - it is better to repair it with high quality as soon as possible.

After installing the spring, tighten it. To do this, perform the following actions:

• remove the handle from the starter cord;
• then the rope is inserted into the reel groove;
• tension the spring by rotating the coil in the opposite direction to the clockwise direction (winding);
• make the required number of revolutions specified in the operating instructions for the used trimmer model and corresponding to the length of the cord used;
• at the very end, the rope is threaded into the hole provided for this, located in the starter cover;
• put the handle in place, fixing it with a knot.

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

• squeeze a piece of the plate suitable in size into the groove at the location of the spring hook;
• drill holes on both sides of the groove in the coil, into which to insert the spring hook and fix it with a wire.