How to disassemble an electric trimmer for grass caliber. How to check the anchor winding: review 3 methods

Repair of a trimmer coil for the grass with your own hands: how to remove, disassemble, change a fishing line for a trimmer, assemble and install back

If the fishing line for the trimmer is not lengthened by a light blow of the trimmer button for grass on the ground, the prerequisites for this usually the following.

Option 1. snack, t.E. Clamping cord between turns. This problem usually occurs if the user wraps a fishing line for a trimmer to a coil unevenly, crossing the windings or wrapping it without tension. In the latter case, when the mower rotates at high speeds under the influence of centrifugal force, the cord begins to drag on, under the influence of which the interspersonal clamp of the braid fishing line may occur. To eliminate obstacles, you need to disassemble the coil on the trimmer and correctly rewind the cord, in other words, even rotates with good tension.

Option 2.4. very short ends stick out of the head. When hitting the ground, the rod may not fall out if its ends protruding from the head are not long (short). Then centrifugal force is not enough to stretch the fishing line for the trimmer. Therefore, it is necessary to hang the unit (turn off the engine in another way, disconnect the electric trimmer for grass from the network) and pull the fishing line for a trimmer manually, after pressing the button.

Option 3. Fishing line for a trimmer to be sealed inside a mower. This makes the coil stop and do not even rotate when you press the button. This is mainly happening for several reasons: low quality of the cord, overheating of the coil during prolonged operation of the machine and the effect of a mowing fishing line on hard objects.

• First, the cord of third.party manufacturers that you like is made of low.quality and fusible materials that do not withstand mechanical and thermal loads. Therefore, it is necessary to give preference to “branded” fishing.
• If you have a fishing line for a trimmer of an unknown owner, and it is often soldered during operation, then, of course, follow the example of some users who, after filling the cord in the coil, moisten it or silicone lubricant (from a spray can) or mineral oil). This procedure significantly reduces the possibility of soldering turns of the mowing fishing line.
• A fishing line for a trimmer can also be soldered if during a mowing it falls into a solid object (stone, fence, dry branch, etc. D.). During this time, it stretches a little and stretches to the head at high speed. The cord heats up from friction, and its coils stick together. The only thing that will be done to eliminate this problem is to open a trimmer coil for grass and rewind a fishing line for a trimmer.

There are situations when a user of a trimmer for grass notices very quick fishing line consumption. Here he never clicked the button button to lengthen the fishing line for the trimmer. A prerequisite for spontaneous lengthening of the fishing line by cutting a special knife on the machine body is a lack of spring in a mowing head. Often beginner users of mowers, trying to load a fishing line for a trimmer into a coil, forget to install a compressed spring in the head, in other words, they completely lose it when opening the lid, and then they do not even suspect its existence.

The trimmer fishing line also expands without using the button if the spring is weakened. If the spring check confirmed this fact, then you need to insert several goals under it to increase the characteristics of the pressing.

The owners of the trimmers, mostly beginners, in confusion, next to the panic, when the coil has to change the cutting tool or fishing line for the trimmer. Often, when trying to unscrew the lawn mowing head, users simply make it unsuitable for use, not suspecting that it is unscrewed in the opposite direction to prevent this if you need to change the tool, we recommend that you join the step.by.step annotation below.

• Before pouring the rod into the coil, turn off the engine bureau, as it is also called, de.energize the electric trimmer for the grass to avoid injuries that occur when a cutting tool is accidentally rotated.
• Unscrew the attached nozzle of the transfer shaft. To do this, it is necessary to fix the shaft by leaving the opening on the puck and inserting an iron bar there or a screwdriver there.
• Unscrew the nozzle. You should know that the thread on the shaft remains. Therefore, turn the coil of the trimmer for the grass to the right, in other words, clockwise.
• Disassemble the mowing head. In most cases, the main cover is attached on the clips. To remove it, you will need to lower these clamps onto the case, squeezing the edges of the lid. If you have a pass, if your trimmer for grass has an automatic mower with a button below, then the nozzle should be disassembled carefully, since there is a chance of a spring loss, which sometimes flies away when removing the lid. ,
• Cut the required amount of fishing. Usually its length is 5 meters. Use the cord of the same diameter that is indicated in the note to the tool. It is not recommended to exceed the largest diameter of the mowing fishing line, as this will increase the load on the engine and increase gas mileage.
• Find the middle of a piece of cord, folding it in half. You will get a loop.
• The coils are cut special grooves inside (there are holes). Insert the loop of the fishing line into this groove.
• Wind a fishing line for a trimmer to a coil, turning it counterclockwise. The cord must be filled very evenly, the turns you need to put it in a non.overlap and with good tension. After the winding is completed, leave the free ends of the fishing line about 20 cm long and fix them in grooves on the sides of the coil.
• Collect the mowing head. Do not forget to completely assemble the nozzle spring and washer (if available). Insert the coil into the housing and pass the ends of the cord through the holes or eyes.
• Put on the lid and fix it with latches.
• Screw the nozzle back to the gear shaft, also fixing it with a screwdriver. Turn the coil of the trimmer for the grass to the left (counterclockwise).

Problems with fishing line

The users of trimmers, both gasoline and electronic, from time to time there are difficulties with the cord. The “advanced” owners of the braids without effort are controlled in the difficulties that have appeared, understanding why this is happening, and for beginners it is an inconsistent that does not have the best clarification. But in fact, everything is solved quite easily. The most frequent obstacles that happen to the fishing line, subsequent.

The cord is not served, the coil does not spin

Automatic or automatic head should serve a fishing line for a trimmer without stopping the unit. But if it does not come out, then the prerequisites can be subsequent:

• The fishing line for a trimmer in a coil is incorrectly wound, which is why the latter does not revolve;
• The cord is wound unevenly, and the thread can get stuck between the turns (the thread should be neat carefully, a turn to the turns, without distortions);
• Very short.term ends of the thread come out of the holes, as a result of which there is not enough centrifugal force to extract them, and the fishing line is not served for the trimmer (it is recommended to always adjust the length of the cord before starting the unit, pulling it down a little);
• The fishing line for the trimmer is sticking together (it will be considered further).

a fishing line for a trimmer flies out

The prerequisite that the cord after starting the unit is unwound, can also be a weakening of the spring of the head of the head. In addition, there are times when a mowing head

, and the spring installed in it disappears. Inexperienced users do not notice the absence of a spring and collect this knot without it. Therefore, the cord does not hold, and under the influence of centrifugal force flies out.

Option

To remove the head of the trimmer for the grass, it will need to have a complete disassembly.

• To remove the lid covering the inside of the head, you need to press on the latches (latches) located on 2 of its sides.
• Removing the lid, you will see the rogue that needs to be removed from the body. In some coils under the bobbin, a spring is installed, which must be carefully removed so as not to lose it in the grass.
• Removing the bobbin, in the center of the case you will see a screw with a slot under a cross.shaped or flat screwdriver. It is possible that there may be a bolt under the hexagon or nozzle “Asterisk”.
• Using a screwdriver, choosing the desired bat (nozzle), you need to unscrew the bolt (counterclockwise).
• After extracting the fasteners, take up the part of the part and, shaking it in different directions, remove it from the gear shaft.

Large cord consumption

In the main thing, the cord is rapidly ending, if you often knock on the ground with an automatic head or press it very down very much. The coil unlock occurs, and the fishing line for the trimmer, lengthening, is cut off by a knife. Another reason that the cord is rapidly ending is the incorrect operation of the device with an automatic head: the user with kosbe often drops the engine speed. But as we recall, the automatic head is arranged so that exactly with each reduction in the revolution the brand new portion of the fishing line is supplied, therefore it is rapidly consumed.

The thread does not hold

It happens that the thread is unwound if the spring weakened in an automatic head. The fishing line for the trimmer is put forward and cut off by the knife installed on the casing all the time, which increases its consumption. To check this, remove the casing and turn on the unit. If the fishing line for the trimmer “climbed”, then you will need to replace the spring.

Option

In this version, the head is twisted onto the gear shaft. To remove it, It will be needed

Fix this shaft. To do this, in similar trimmers, for example, in Huter and Champion devices, a hole is foreseen, through which you can stick either a narrow screwdriver or an iron rug.

So, to remove the bobbin, take 2 ordinary steps.

• Shine the screwdriver in the hole and stall the shaft.
• Take the head of the head and start twist it clockwise. It should be twisted in this direction for the reason that the thread cut on the shaft is left.

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Dismantling a trimmer for grass

We begin to disassemble an electric trimmer for grass

At the beginning, we disconnect the two connected halves of the trimmer for the grass, the control handle from the contact connection with the electric motor itself.

Two photographs \ photo, photo \ shows the sequence of separation of the electric motor from the control handle.

Next, we need to check, perform diagnostics. control handles \ photo \. How an electric electric trimmer works for grass, button. We analyze this part and conduct diagnostics for individual electrical connections \ photo \.

Checking an indicator screwdriver

We need a simple tool to check electrical connections. indicator screwdriver.

The photograph shows a detachable contact connection from the control handle. To check the electrical circuit of the connections from the contacts of the plug plug \ photo \ to the detachable contacts \ photo \, for this, you can close the stall fork and the indicator screwdriver with the tips of the indicator screwdriver with detachable contacts.

The breakdown manifested itself unexpectedly at the most inopportune moment. After prolonged warm rains, grass in the garden and on the lawns of the cottage has grown greatly, there was a need to mow it. I had to take a trimmer for the grass. Connected it to an electric outlet through the extension cord and began to work.

After a short period of time, the electric motor suddenly turned off. Checked the voltage on the extension cable: everything is fine. I took a trimmer for the grass in my hands and began to mow. He quickly refused again.

This lasted several times. I had to inspect the extension core and check the power. No malfunctions were found. Made a conclusion that the breakdown arose in the trimmer. You need to look for it.

Dismantling of gasoline braids for grass, lubrication of its parts and replacing faulty elements

To disassemble the lawn mower to carry out repair work, in general, the following devices will be needed:

• set of screwdrivers (with different tips) and wretched keys;
• a small puller for removing bearings;
• special candle key;
• a hammer.

In each case, you need to disassemble individual nodes.

It should be borne in mind that the starter (start.up) in a number of models is non.devastated. in this case, with problems with it, only replacing the element is possible. If the node is disassembled, then it can be repaired by removing and replacing the rope and the spring, or by installing the latter in place (when it exit from the gearing).

Analysis and replacement of the bar

Quite often it is required to repair a trimmer bar for grass. It is a design from such parts:

• a drive shaft of steel, which has multifaceted or square slots on the upper and lower ends;
• aluminum tubes;
• plastic sleeve designed to maintain a centralized position of the drive shaft in the tube (so that there is no vibrations);
• shock absorber made of rubber required for connecting the bar with the motor;
• steering wheel with a handle used to control, and a stand, belt.

In some models, the shock absorber is between the steering rack and the bar. All control elements (lock lever, ignition switch, gas button) are located on the handle.

A conical angular gearbox is connected to the lower end of the bar, but some light models are available without it. This is due to the fact that their bar has a curved shape, and the shaft is a flexible cable.

How to disassemble the bar and then collect it to lubricate the shaft or its replacement, in detail is placed in the video further. In the same way they change the broken bar for a new.

Often it happens that the multifaceted or square slots of the drive shaft “lick”, while the working mechanism does not rotate or does it with a feather. Then the shaft is changed.

When a knock appears in the tube, you should disassemble the bar and check the condition of the sleeve, and if necessary, replace it. How to properly assemble a gas handle on a trimmer, is considered in the video below.

If there is no rod, suitable for installation, then you can pull the broken place with a clamp or apply the likeness of the tire. Such a measure is temporary, so you should make a replacement as soon as possible.

Clutch repair

When a knife or fishing line for a trimmer when operating the engine at idle is almost constantly spinning, and uncharacteristic sounds come from the front of the motor, this indicates a clutch clutch breakdown. The reason is a bursting spring. At the same time, the technique mows normally.

If there is a slip, then in addition, the pads have worn out.

The traffic trimmer is repaired as follows:

• Remove the lid from the silencer;
• remove a metal stand;
• After remove the lids of the cylinder and the starter to gain access to clutch;
• unscrew the side screws to remove the shock absorber lid;
• They take out the tube from it, having previously let the tightening bolts;
• unwind the clutch (presented in the photo further);
• examine the condition of the spring, pads and bearings;
• They cling to a new spring, passing the hooks into the corresponding holes;
• To replace the pads, you need to remove the spring, and then unscrew the bolts on them.

If necessary, stop the crankshaft using, for example, ropes.

Repair of a gasoline engine, carburetor and gearbox

Malfunctions with the engine can be caused by problems with the piston system, seals, rings. To eliminate them, it is necessary to remove the drive motor.

To determine what exactly caused the breakdown is not easy. In the presence of a guarantee, the mechanism should be attributed to the service center for diagnosis and repair. If you turn to specialists for help, it should be borne in mind that the most commonly required to replace the piston rings. To do this, you need to disassemble the engine, get the piston. Do this in the following sequence:

• Remove the lid of the plastic case, unscrewing the screws or pressing the clamps;
• disconnect the bar with the crankshaft;
• Remove the cylinder head;
• take out the piston and rings;
• if necessary, they are replaced;
• carry out the assembly in the reverse order.

The rings should be installed carefully, because they are quite fragile.

How the piston is placed and the seals are replaced during the repair of the engine, it is clearly shown in the videos further:

With regular use of the lawn mower, a gearbox may break. Histers, bearings wear out in it (they can also break). For this to happen infrequently, this node should be regularly lubricated. The frequency is almost always indicated in the operational instructions for the model used (at least once per season). A video below can serve as a repair instructions.

To grease the gearbox, unscrew the cork and simply squeeze out a suitable lubricant inside the node, scrolling off the shaft.

Your own carburetor can only be removed and cleaned, and also replace the gasket between it and the engine. The tightness of the node at home is determined quite problematic. The main thing is to properly assemble equipment after repair, so that the trimmer for the grass works without problems.

Common malfunctions of electric trimmers

Electric trimmers for grass differ from gasoline devices with a more simplified design. Conditionally electric braid is divided into mechanical and electric part. Accordingly, the same groups of malfunctions are distinguished, arising to these equipment.

Most of the breakdowns can not be visually identified. For this you will need to use various devices. You can visually determine the following:

• the integrity of the power cable is violated (insulation is broken from it, or it is clearly interrupted);
• sustaining or jamming of the trigger button;
• mechanical external damage to motorcycles;
• problems with the cutting part;
• stopping braids for grass when clogging with grass;
• Damage to the fork.

To find out which part has broken in other cases, you will need to disassemble the electric shock and sequentially check the most likely options. At the same time, they pay attention to the external manifestations of deviations from the normal operation of the device. They contribute to the establishment of the cause.

Repair of an electric trimmer for grass will require the presence of the following devices and tools:

Electric braids for grass often do not work due to causes that are not directly related to them, but caused by a decrease in the supply voltage in the network or the ineffective state of the used outlet used.

How to replace a trimmer gearbox for grass: an algorithm of action

To replace the gearbox with a similar part from the same manufacturer, it must first be disassembled and removed from the bar. At the same time, they act according to the following algorithm:

• weaken the fitting bolts located under the transfer mechanism;
• Using round.drawers, remove two corkscrew rings;
• Applying the puller, pull the bearings from the driven and the leading shafts;
• Then collect the mechanism, in the reverse order by installing all spare parts.

The disassembled transmission mechanism is shown in the photo below.

If the puller is not at hand, then you can try to gently knock down the bearings. When they have stuck and do not move at all, you can heat them using an industrial hair dryer (at a temperature of 600 ° C) and remove.

Collecting a gear node is easier than disassemble it. Only a light tapping with a hammer for planting parts in place may be needed. After assembly, it is imperative to check that the driven shaft turns out by hand.

Когда есть необходимость замены передаточного узла неоригинальной деталью, тогда следует учитывать их взаимозаменяемость. At the same time, it should be taken into account:

• the diameter of the bar (this parameter often is 25.4 or 26 mm);
• The parameters of the drive shaft. the shape of the docking space and the diameter (its common value is 8 mm);
• option of consolidation of protection.

If the considered parameters coincide, then it will be possible to set a part from other models.

Timely lubrication of the gearbox will ensure its prolonged operation without repairs. In addition, modern materials protect the metal from corrosion well, increase its wear resistance. When choosing, preference should be given a lubricant recommended by the manufacturer of the operated trimmer for grass. If such compositions are not possible to purchase, then the analogs considered or other suitable in properties should be applied. When it is necessary to disassemble the mechanism during the repair, this should be done carefully so as not to damage individual parts.

The main malfunctions of the coil

Users of the electrimmer and lawn mower often face a problem associated with a semi.automatic braid head. Coil malfunctions can be as follows:

The fishing line for the trimmer does not extend automatically

If, with a light blow, the trimmer coil button for grass on the ground is not lengthened for a trimmer, then the reasons for this may be the following.

Option 1. there was a snack, t.e. Squeezing the cord between turns. This problem usually appears if the user wound a fishing line for a trimmer to the coil unevenly, with the intersection of the turns, or wound it with insufficient tension. In the latter case, when the mowing head is rotated at large revolutions under the influence of centrifugal force, the cord begins to drag on, as a result of which the interitral clamping of the fishing line is possible. To eliminate the problem, you will have to disassemble the coil on the trimmer and rewind the cord correctly, that is, with even turns with good tension.

Option 2. too short ends protrude from the head. A fishing line for a trimmer may not exit when hitting the ground, if its ends sticking out of the head, insufficient length (short). In this case, the centrifugal force is not enough for the fishing line for the trimmer to stretch. Therefore, it is required to stop the unit (drown out the engine or turn off the ethletric trimmer for grass from the network) and pull the fishing line for the trimmer manually, after pressing the button.

Option 3. a fishing line for a trimmer was soldered inside a mowing head. This leads to the fact that the coil is stopped and does not spin when the button is pressed. Basically, this happens for several reasons: poor quality of the cord, overheating of the coil with prolonged operation of the unit, a fishing line on solid items.

• In the first case, the cord of third.party manufacturers can be made of low.quality and fusible materials that do not withstand the mechanical and temperature load. Therefore, preference should be given to “branded” fishing.
• But, if you still purchased a fishing line for a trimmer of unknown quality, and it is often soldered during operation, then you can follow the example of some users who, after refueling the cord, moisten it either with silicone grease (from the spray can) or mineral oil). This procedure greatly reduces the likelihood of soldering a fishing line among themselves.
• Also, a fishing line for a trimmer can sleep if during a mowing it hit a hard object (stone, fence, dry branch, etc.D.). As a result of this, it is slightly stretched and draws back into the head with high speed. The cord is heated from friction, and its turns are sticking together. The only thing that can be done to eliminate this malfunction is to open a trimmer coil for grass and rewind a fishing line for a trimmer.

The cord spontaneously lengthens

There are situations when a user of a trimmer for grass notices a very fast fishing line consumption. At the same time, he never hit the ground with a button to lengthen the fishing line. The reason that the fishing line for a trimmer spontaneously lengthens, cutting off a special knife on the casing of the device, may be the absence of a spring in a mowing head. Often beginner users of mowers, trying to charge a fishing line for a trimmer into a coil, forget to install a clamping spring in the head, or completely lose it when opening the lid, and in the future, they do not even suspect its existence.

Also, a fishing line for a trimmer can lengthen without using a button if the spring is weakened. If the spring check confirmed this fact, then it is necessary to put several goals under it to strengthen its clamping properties.

How to remove the coil and replace the fishing line for the trimmer

The owners of the trimmers, mainly beginners, confuse, bordering on panic, when it becomes necessary to change the cutting tool or fishing line for a trimmer in a reel. Very often, when trying to unscrew the mowing head, users simply make it unusable, not suspecting that it is unscrewed in the opposite direction. So that this does not happen, if you need to replace the tool, it is recommended to familiarize yourself with the step.by.step instructions given below.

• Before refueling the fishing line for the trimmer to the coil, drown out the engine of motorcycles or de.energize the ethletric trimmer for the grass to avoid injuries that may occur in case of accidental rotation of the cutting tool.
• Unscrew the nozzle mounted on the gearbox shaft. To do this, the shaft must be fixed by combining holes on the puck and on the axis, and inserting a metal rod or screwdriver into them.
• Unscrew the nozzle. You should know that the thread on the shaft is left. Therefore, to twist the coil of the trimmer for the grass should be right, that is, clockwise.
• Disassemble the mowing head. Most often, the head cover is attached to the fixers. To remove it, you need to drown these latches into the case, pressing the edges of the lid. If your trimmer has a semi.automatic mowing head, which has a button from below, then disassembling the nozzle should be done carefully, since you can lose a spring that sometimes flies away when removing the cover.
• Cut the required amount of fishing line. Usually its length is 5 meters. Use the cord of the diameter that is indicated in the instructions for the tool. It is not recommended to exceed the maximum diameter of the fishing line, since this will lead to increased load on the engine and greater consumption of gasoline.
• Find the middle of the segment of the cord, folding it in half. You will get a loop.
• Special grooves are cut out inside the coil (there may be holes). Insert the loop from the fishing line into this groove.
• Wind a fishing line for a trimmer to a coil, turning it counterclockwise. You need to refuel the cord as evenly as possible, the turns should be laid without ceiling and with good tension. When the winding is finished, leave the free ends of the fishing line about 20 cm long and fix them in the grooves located on the sides of the coil.
• Collect the braid head. Before you finally collect the nozzle, do not forget to insert a spring and washer (if it is available). Install the coil in the case, and prone the ends of the cord through the holes or eye.
• Dress the lid and fix it with latches.
• Screw the nozzle back to the gear shaft, also fixing it with a screwdriver. Tighten the coil of the trimmer for the grass will need to go to the left (against h. Arrows).

The lawn mower stalls when you press the gas.

Why does a trimmer for grass stall when you press the gas?

You see, there are many circumstances for which a trimmer for grass can slow down when pressed on gas. Here why

It is important to look at the state of your assistant, in time to inspect the state of all mechanism systems.

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Thanks for the competent review, everything is very clear and affordable !! I also took myself the Tatra Garden BCU-50 gasoline cut, I have already passed the entire section twice, I am very pleased with the choice! I advise everyone! I would like to recommend to everyone else to take such tools with a guarantee from the office. Because saved 200-300 UAH.

Mechanical malfunctions of a trimmer for grass

If the electric engine of the device is turned on, but the rotation of the bobbin with the fishing line does not occur, the causes of such a malfunction may consist in a break in a flexible shaft transmitting torque. This problem is especially often manifested with improper care of the electrical appliance. For example, in the absence of lubrication inside the rod, the electric cables will be subjected to excessive friction and for a short time this part will fail. To replace it, it is enough to disconnect the upper part of the electric cos, in which the electric motor is located, after which it will be possible to extract a flexible shaft from the bar.

Flexible shaft

Lubricant for flexible shaft

If there are difficulties in extracting the second part of the cable remaining in the cavity inside, the lower part of the braid for grass with a bobin and shaft is disconnected. The assembly of the mechanism is carried out in the reverse order.

trimmer for grass with the lower engine location

Before installing, the flexible shaft must be carefully lubricated with plastic lubrication to reduce the probability of re.failure of this part out of order.

The bearing of the shaft Electrics

The rupture of the flexible shaft can only occur in the models of the electrimmer with the upper engine location.

Electrics with the lower engine of the engine do not have a flexible shaft, but the malfunctions of such devices can manifest itself in the form of destruction of the main shaft of the electrocos on which the Bobin is installed with the fishing line.

It is very easy to repair such a malfunction to replace the failed bearing with a new part.

Electric trimmer device for grass: 3 types of common structures

For a long time, I have been engaged in maintenance, repair and commissioning of electric motors with various drives and compare an ethletric trimmer for grass with a conventional electric drift or screwdriver:

• the same collector engine with a brush mechanism and voltage supply wires;
• the simplest kinematic circuit for the transmission of the rotating moment from the rotor shaft to the actuator;
• even a power cord with a fork and the power button is identical.

The difference is only in the engine mounting, the design of the handles, which provide the convenience of control and some other nodes of equipment associated with the specifics of the work of the Cossal.

A light low.power trimmer for haircuts for a small grass class of small grass is usually created with the lower engine location and fixing the coil with a fishing line on it. The mount and handle rods are made long: the back of the worker should not bend.

A powerful electric trimmer for grass has an elongated bar, and the electric motor is located on top. The entire system is balanced and suspended on a belt, which allows you to conveniently work such models even to representatives of the weaker sex.

Manufacturers went on. Now the design is gaining popularity without a power cord. As an example, I give a battery trimmer for the grass Karcher LTR 18-30 BATTERY.

All three types of electric trimmers are created according to general principles. Their knowledge allows you to carry out your own repairs with your own hands with the most affordable tools of a home master.

Electric trimmer diagram for grass: what to pay attention to when faults occur

Electricians have long brought all their malfunctions to two reasons and talk about them in a comic form when electrical contact:

• It accidentally arises where it should not be (the breakdown of isolation and the occurrence of a short circuit or overload);
• breaks off in any unexpected place.

It is from these two fundamentally different positions that we will deal with defects in the electrical circuit.

over, in the first case, I strongly recommend using a circuit breaker or differential machine to protect to protect, which will protect the outlet that feeds the ethletric trimmer for grass.

Когда он правильно выбран и настроен, то спасение человека от поражения электрическим током обеспечено. This is very important to observe always.

But about all the other features of the work of the scheme associated with the unauthorized gap of the chain, I tell further. In fundamentally simplified, it looks as follows.

The current from a stationary outlet 220 volts through the extension cable passes to contact the trim of a trimmer output cable for the grass, and then it flows through the switch button on the brushes and the rotor winding, the stator winding, thermallane and returned back.

All these elements are connected by conductors. When a cliff accidentally arises from anywhere, there will be no current and the engine will stop. The inclusion button works by this principle: its gap stops rotating the anchor.

I am considering the work of these parts in more detail.

How to check the extension cord: 3 ways

The situation is not trivial, but in my practice there have already been cases when people rubbed the extension cord and they could not mow. After that, they immediately took the screwdriver in their hands and disassembled a working trimmer for the grass.

You can’t rush in this case. I must immediately make sure that the supply voltage reaches the electric trimmer engine for grass.

You can do this by measuring the exit of the extension cord using the simplest multimeter, switting into a voltmeter of alternating current. You can use an old switch tester or voltmeter.

If there is no multimeter at hand, then a simple indicator screwdriver will help out. She froze it twice in both nests of the extension cord. over, the second time you should go to a powerful outlet and turn the fork turn over.

In this way, both veins of the extension cord will be checked.

When there is no multimeter, no voltage indicator, we act in the third way. We go to a stationary outlet with an electrimmer, convince us of the presence of electricity (turn on the light with a switch) and check the operation of the engine without an extension cord.

If he has not earned, then you need to look for internal damage.

Trimmer trimmer case: how to open and get to an electrical circuit

I will take all the photos on the example of my trimmer for grass from China, who has already worked for 6 seasons. Other models may have differences, but they are not significant for understanding the principles of work.

Do not forget before disassembly before pulling out the cord fork out of the outlet.

The upper plastic cover around the perimeter is fixed with screws with screws with a cross.head. All of them are located and twisted only on one side of the case.

Alternately twist them to the end. After that, between both halves of the case, it is necessary to draw (disconnect) plastic latches. locks. They can be opened with a thin blade of a screwdriver or knife.

Then the cover is removed up, and we have access to all the insides. We carry out an inspection.

Take the camera and take photographs of each detail and their location among themselves. They will significantly accelerate your future assembly and come in handy in the future repair, especially if you have to look for something and buy.

Everything that is depicted in this photo (on specifically your model of a trimmer for grass may be differences), it is necessary to carefully inspect and check with electrical measurements, to rescue the integrity of each wiring and node.

Pay attention to the purity of the insides, especially the condition of the ventilation holes and the operation of the cooling fan. If the air does not blow the electric motor, then the latter will overheat during operation.

How to check the switch: the most reliable method

A micrics with normally open contacts are usually used as a trimmer switch for grass, which can burn or oxidize during long.term work.

Their serviceability allows you to analyze the measurement of resistance by a multimeter in an ohmmeter mode or the so.called circuit (the chain (.

When pressing the button, the contacts are closed and their resistance becomes small, as in the photo above. If the switch is disconnected, then the ohmmeter will show an infinitely large value.

On my electric trimmer, the switch works as follows.

Rupture of the chain

Closing a chain

All other indications will indicate malfunctions. Quite often, the micrix itself can be carefully disassembled by removing the lid, and cleaned the contaminated contacts with a crow or wash with alcohol. After that, the micrix is ​​gathering in the reverse order.

Gasoline trimmer device for grass. Asseting device and common malfunctions

The easiest way to give the lawn mower for repairs, allocating a certain amount of funds from the family budget, operational and high.quality repair with your own hands is no less simple and convenient to understand the design of the lawn mower and fix all the problems.

The massive and piece manufacture of trimmers is based on the use of generally accepted technology, the 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 the starter, carburetor and the engine of the lawn mower;
• middle part. Hollow rod, inside it is a cable connecting the engine and gearbox, which sets the cutting fishing line for the trimmer. In this part there are mounts for the distribution of weight of the entire structure and a belt for fixing a trimmer for grass on a belt of a person using a trimmer for grass for its intended purpose;
• Bottom part. It has a gearbox and cutting elements that are hidden under a practical casing, which protects the user. The casing provides an increased level of safety, preventing large fractions of garbage, pebbles and glass in a person while working with a gas station.

Knowing the internal device and the principle of operation of the trimmer for grass, you can independently carry out repair measures for the design or replace individual unusability of the nodes using the repair instructions.

The most common and often encountered, subject to independent correction of the breakdown of the unit can be called the following problems:

• engine malfunction, due to which the lawn mower is not started and does not work;
• enhanced vibration of the bar motorcosa, which complicates its targeted use;
• increased overheating of the gearbox, its accelerated heating during operation;
• slow and weak functioning of the cutting fishing line at insufficient speeds;
• the clogging of the starter grill causing the engine overheating and its refusal to work;
• rapid and frequent clogging of the carburetor due to the use of poor.quality fuel;
• clogging of the air filter in case of non.compliance with measures to care for the device.

All these problems can lead to the fact that the device will lose its ability to work before ordering the necessary spare parts for non.bosomeds should be carried out by a visual inspection and diagnosis of the device.

Special attention is required by individual spare parts and assemblies of the device, to verify them, you will not have to turn to a professional master, a complex of diagnostic measures will help to identify a consequence of the occurrence of a loss of performance.

Do.it.yourself trimmer repair

REPAIR OF LARING MOLE: How to restore the engagement of the drive shaft

The trimmer malfunction for the grass: licked the edge on the drive shaft of a trimmer for grass (I had to buy a new shaft).

The reason for the trimmer malfunction for the grass: “licked” because the shaft slots at the top are not in its entire length (it happens that the shaft clings only a few millimeters at the end). Below in the gearbox, the shaft enters the entire length under its own weight.

Repair of a trimmer for the grass with your own hands at the first t.about. The trimmer for the grass must be checked and so that the shaft enters at the top of the clutch over the entire length of the slots (or faces, if there is a square). To do this, try to put a gearbox above on the pipe, having previously loosened its fastening or try to push the pipe deeper into the shock absorber, after weakening its mount. If the shaft slots still do not enter the entire length of the clutch, then it is necessary to shorten the pipe (cut off the part) to the length necessary for the complete entry of the slots into the adhesion.

P.S. If the shaft is already “licked”, then just turn it over. set the shaft with the upper knocked down slots down to the gearbox and do what is described in the repair of a trimmer for the grass with your own hands.

Traimmer repairs for grass: how to stop the lubricant leakage from the gearbox

The trimmer malfunction for grass: where is the lubricant from the gearbox of the trimmer for the grass (Chinese trimmer for grass, into a gearbox, instead of a traffic jam, screwed up a press-oxyna and a syringe).

The reason for the trimmer malfunction for the grass: solidol under pressure pushed closed bearings of the gearbox. During operation, liquid hot lubricant, persecuting rapidly rotating conical gears (in a small volume of the gearbox) “flies out” either into a leash cartridge if the closed bearing rings on the driven shaft are sold, or up to the body of the pipe if the closed bearing rings are sold on the leading shaft gearbox.

Do.it.yourself trimmer repair: replace bearings (or all gearboxes) in the service center and further use a special lubricant for a trimmer gearbox (for example, Husqvarna).

Tip: Chinese lawn mowers have a small hole for adding lubrication to the gearbox, so it will be more convenient to lubricate from the corporate tube to pick up a medical syringe (without a needle), and already add a lubricant to the gearbox from it.

Repair of a trimmer for grass Husqvarna 333r

Husqvarna 333R grass faults for 3.5 seasons of active commercial operation (required replacement):

• The gearbox of the Husqvarna grass is assembled: a piece of the aluminum case broke off after a strong blow about a piece of steel pipe sticking out of the ground (I, together with the gas station, deployed 180, and the Windsor 300-3 2 mm (1 ″ metal knife was bent “bowl”). What did: made a steel temporary clamp.
• The aluminum engine of the engine. both the front ear of the mount broke off. Such a trimmer malfunction for grass.
• One bolt of the muffler mount (the edges of the Husqvarna bolt head smoothed out).

It is advisable to change the muffler (they rivet and a little inside the “overgrown” by the haul). Or at least clean the sparkling grid if they were not removed at the beginning of the operation of a trimmer for grass.

Note: I read somewhere that the production of two-stroke engines for refusal is no more than 500 hours, and for my 3.5 seasons ~ 370 liters of gasoline, t.e. if 0.35 l. per hour, already the operating time is more than 1000 hours! Husqvarna 333r grass trimmer. a very reliable trimmer for grass (lawn mower).

Note: Please write in the Комментарии и мнения владельцев, what do you think about this repair of a trimmer for grass.

REPAIR OF THE LAW: How to Replace the Gearbox bearings

Trimmer malfunction for grass: tell me how the gearbox is analyzed on a trimmer to replace the bearing (Husqvarna). And whether he understands at all?

Answer: Husqvarna lawnies gearbox can be disassembled to change spare parts such as bearings, conical gear gear, housing (t.to. Reducer assembly for a trimmer for Husqvarna grass costs about 150.) It is necessary to remove it by sending the tightening bolts below, be sure to wash (for example, gasoline), then reduce the ends of the locking spacer ring (there are two of them on the gearbox) and pull out bearings with a small shooter of the bearing. They should easily go, since the upper bearing is no longer tightened by the case, and the drive shaft of the trimmer for the grass of Husqvarna comes out from the bottom.

Traimmer repair for grass: how to restore thread in the cylinder candle hole

The trimmer malfunction for the grass: the spark plug is twisted with great difficulty.

The cause of the malfunction: the thread in the cylinder candle is damaged due to the fact that the candle did not go along the thread when twisting it into the cylinder, or the sand fell into the threaded part of the candle, or the thread is torn with a great effort on the vein.

Do-it-yourself trimmer repairs for the grass if the candle is not screwed deep along the thread, then you can drive the thread in the cylinder with a tap of the corresponding size, then tighten a new candle and tighten with a force of 32-33 nm. If the candle did not spell, then everything is fine, but with subsequent turning out the candle, you must be especially careful. If the candle was spent, you have to install a footer (repair sleeve). To do this, it is better to contact the workshop for the repair of chainsaws and gasoline trimmers. There is a necessary tool and qualified personnel to choose and purchase (or make) the spark plug suitable for your candle, then correctly disassemble the engine, drill the candle hole of the precisely required diameter, cut the corresponding thread in the cylinder. Then rinse everything and blow it off the chips, screw the candle into the sleeve, apply a threaded sealant or cold welding to the threads, screw the candle with the sleeve into the prepared hole, dry everything, bring everything in. As an option. the replacement of the engine cylinder. Do.it.yourself renovation of a trimmer for the grass is repaired with your own hands.

Gasoline trimmer device for grass. Asseting device and common malfunctions

The easiest way to give the lawn mower for repairs, allocating a certain amount of funds from the family budget, operational and high.quality repair with your own hands is no less simple and convenient to understand the design of the lawn mower and fix all the problems.

The massive and piece manufacture of trimmers is based on the use of generally accepted technology, the 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 the starter, carburetor and the engine of the lawn mower;
• middle part. Hollow rod, inside it is a cable connecting the engine and gearbox, which sets the cutting fishing line for the trimmer. In this part there are mounts for the distribution of weight of the entire structure and a belt for fixing a trimmer for grass on a belt of a person using a trimmer for grass for its intended purpose;
• Bottom part. It has a gearbox and cutting elements that are hidden under a practical casing, which protects the user. The casing provides an increased level of safety, preventing large fractions of garbage, pebbles and glass in a person while working with a gas station.

Knowing the internal device and the principle of operation of the trimmer for grass, you can independently carry out repair measures for the design or replace individual unusability of the nodes using the repair instructions.

The most common and often encountered, subject to independent correction of the breakdown of the unit can be called the following problems:

• engine malfunction, due to which the lawn mower is not started and does not work;
• enhanced vibration of the bar motorcosa, which complicates its targeted use;
• increased overheating of the gearbox, its accelerated heating during operation;
• slow and weak functioning of the cutting fishing line at insufficient speeds;
• the clogging of the starter grill causing the engine overheating and its refusal to work;
• rapid and frequent clogging of the carburetor due to the use of poor.quality fuel;
• clogging of the air filter in case of non.compliance with measures to care for the device.

All these problems can lead to the fact that the device will lose its ability to work before ordering the necessary spare parts for non.bosomeds should be carried out by a visual inspection and diagnosis of the device.

Special attention is required by individual spare parts and assemblies of the device, to verify them, you will not have to turn to a professional master, a complex of diagnostic measures will help to identify a consequence of the occurrence of a loss of performance.

Launcher of the starter and gearbox

The gearbox conveys the rotational moment from the engine shaft to the cutting tool, its gears during operation should be absolutely clean and necessarily lubricated with special lubricant.

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Conducting a technical inspection on their own once a season will get rid of the need to carry out the repair of the gearbox or its replacement, with the acquisition of an expensive new node.

The starter is necessary to bring a trimmer for grass to working condition, its diagnosis is to check the tension of the lace of the starter coil with the teeth of the coil, which are often destroyed at a sharp launch.

A non.working starter in a benzocos is not subject to repair, it must be replaced with a working unit, as part of a mandatory inspection or a set of repair measures.

Separate attention and care require cutting elements that must always be cleaned of dirt and mowed grass after operation. Regular inspection and thorough preparation of the device for work will help to avoid expensive and costly repair time, always be sure of the operation of the lawn mower.