How to disassemble a battery trimmer for Kerher’s grass. How to prevent malfunctions… electrimmer repair: detailed instructions for a novice master with pictures, schemes and photos

For some reason, often the need to carry out the repair of an electrimmer with your own hands arises at the most inopportune moment when it is necessary to urgently mow grass, and the breakdown does not allow this to do this.

Most of the defects that occur is not difficult and can be eliminated literally on the spot with a simple improvised tool. But for this you need to have basic knowledge of the design of your mowing.

I share my own experience acquired for five seasons of exploitation of my ECO GT-800L, as well as help friends and neighbors in this matter in this matter. I myself try to pay attention to preventive maintenance, timely conduct technical inspections and verification.

disassemble, battery, trimmer, kerher

What you need to know about the device of the electrimmer before the start of its repair: 2 types of structures

Trammers for herbs for mowing herbs with power supply from electricity are made with a capacity of 300 watts to 2 kW with two modifications. They are distinguished by the location of the engine:

Such products are created for different tasks, differ in weight, power, working characteristics. The first types of models are light and used to process the complex relief of garden paths under the bushes, near the flower beds.

Products with the upper engine arrangement allow you to process large areas, they are noted with high performance.

Both types of mowers can work from a household network 220 volts. However, elite products are created with food from the portable battery. Most often they are used on light models, as shown in the photo above.

An example of a product with an upper engine and its layout show it in the photo of my Eco GT-800L below. The fastening of the belt allows you to hang a mower on the shoulder, and the handle provides convenient control of the cutting head during kosbe.

The working body is a spitter head with a fishing line. It can be supplemented with a cutting knife made of metal or plastic on powerful models. The torque of high revolutions for it is created by an electric motor, and it is transmitted by a kinematic scheme located inside an integral bar.

disassemble, battery, trimmer, kerher

In more detail, the insides device show a photograph of the engine with the upper lid of the case on its trimmer. It is not equipped with a gearbox. This, by the way, is such a simple execution completely suits me.

The engine is turned on by a small final switch with a convenient plastic lid placed in the lower handle.

Features of the device of the electrical circuit: Briefly

The basic part is a typical collector engine in which the rotor of the stator windings gives the rotor to the bearing of the bearing.

The electric current that performs the main work flows through the closed circuit of all windings through the brush-collection mechanism.

The vast majority of engines as a protection against overheating of the insulation of windings use thermorelene. During the repair, we consider it as ordinary power contact in a closed state.

With a critical heating of the varnish of wires, it will simply open and interrupt the action of electric current.

All elements of the electric circuit are connected by wires and terminals to each other into the sequential site. A short cable with a fork is displayed out to connect to an extension cord.

How the torque from the engine is transmitted to the mowing head: 3 components of the kinematic scheme

It is used to lower the revolutions and, accordingly, increase the power on the output shaft.

On some designs, it is located immediately after the engine, built into its design.

In other models, it can be located from below the national bar: immediately under a mowing head and a protective cover.

Any of these gearboxes consists of two gears conveying rotation. In the upper photo, they have a cylindrical shape with a slanting tooth, and on the lower. conical, because they change rotation at an oblique angle.

The transmission of the torque from the engine is performed by a docking knot consisting of a cylindrical sleeve with a rectangular hole. The tip of the spring shaft of the corresponding form located inside the aluminum tube is inserted into it.

The rod of a trimmer for grass consists of two halves connected in series. Each part is made up of three details inserted into each other:

The joint of the bar is made in the middle of its length using an adapter with a screw connection, allowing to add the entire structure for convenient transportation on transport.

Below is a spiked head with a protective casing. To trim the excess fishing line, a knife is stationarily installed on it, reducing its length to the optimal value.

Not to allow unintentional inclusion. Before connecting the battery unit, lifting or carrying a device, make sure that the power switch is in the “off” position.

Injury by adjusting key remaining on the rotating part of the tool. Before turning on the device, remove the adjustment key.

It is forbidden to run while working with the device. only walk. Do not move backwards. Avoid the unnatural position of the case during operation, monitor the stable position and hold balance.


Turn off the engine, remove the battery block and make sure that all moving parts are completely stopped:

Before leaving the device unattended.

Before checking, cleaning or maintenance of the device.

Before eliminating the jam or cleaning the opening for emitting grass.

After a collision with an extraneous subject. Check the device for damage and eliminate them before re.starting the device.

With unusual vibration of the device. Check the device for damage and eliminate them before re.starting the device.

Device and principle of operation

A trimmer for grass with a battery is an electric manual braid for grass, which comes complete with an autonomous power source. In terms of design, it differs little from those models that work from the network. However, the technique of this kind is more compact and mobile, great for working in a limited territory, providing comfortable access to complex areas. A trimmer for grass for grass, working from a battery, is well suited for the lawn, carefully cutting off the stems of soft grass. It is important to understand that not all varieties of these models can cope with hard stems, shrubs and weeds. The battery trimmer for grass can be used as auxiliary equipment. The principle of operation of such a device is very simple and is practically no different from the standard. The electric motor transfers an effort to a rotating cutting element. The motor is usually located in the bottom of the bar.

To buy a battery trimmer for grass, you need to take into account a number of technical characteristics that provide high quality haircuts of lawns.

The mass of the device. Light models can have a weight of about 2 kg. Powerful variants of garden batteries weigh up to 7 kg. The catalog presents the Kerher models of different categories, this will choose the optimal mass of the device. Be sure to pay attention to this parameter if you plan to use a trimmer on a regular basis.

The width of the mowing strip. It depends on the diameter of the disk and can vary in the range of 230–400 mm.

Battery type and battery capacity. The productivity of the device depends on this, as well as its working life without additional recharging. Hand trimmers for Kerher‘s grass are equipped with a lithium battery, which, depending on the battery, can provide up to 70 minutes of uninterrupted operation of the device.

Power. To ensure high quality processing of lawns, it is recommended to choose more powerful models. Such a device provides comfortable work and can mow thick herbal stems without loss of processing quality.

The duration of charging. Trimmers for Kerher’s grass can be charged for 48 (80 %) or 78 (100 %) minutes thanks to a special device.


This battery trimmer for grass makes a great impression. Facilitates the process of removing grass, weeds and undesirable vegetation even in places. Thanks to the LTR 36-33 battery, processing areas around trees, hedges and passages are now easier than before. Pay attention to the range of trimmers for giving. This is a convenient and practical technique that provides high quality processing of lawns. In the catalog you can choose the right devices options at a favorable price. All models have excellent technical characteristics and are ideal for private use.

Battery trimmers for grass do not depend on the length of the wire: you can mow grass at any distance from the house. However, it is important to consider several nuances that will provide you with the maximum comfort of interaction with the technique. Before starting work, it is recommended to check the territory for dangerous garbage that can damage the device blade: large stones and snags. In addition, we recommend that we make sure that there are no electric wires or cables under voltage in the grass. It is also advisable to temporarily isolate pets, and people should not approach the working operator closer than 10 m. Be sure to check the strength of fastening the nozzle before each use of the technique. Remember that compliance with the instructions provides the maximum life of the device and reduces the risk of possible trauma during operation.

Puddle, Sing, I fix Kerher Part 1.

And I’ll tell you, my friends, about my work a little. It happened in the distant 2004. I was still working as a driver in a road-building office, but because of the tyranny, the foreman was forced to quit. This is a separate story and somehow I will definitely cut it.By the will of the fate, I then brought me in search of work in a small car shop. I think let me try myself in trade, which is not joking on the devil. In the end, I considered this work as a temporary. But there is nothing more constant than temporary))))) And now I have been working there for 13 years.The shop was traded mainly by auto chemistry and oils, but there was still such outlandish at that time in its assortment Karcher. Then she was just starting to spread a brand and even now the name Kerher is more a common name. But it is one thing to sell, but the service should also be. And my boss once said, can you try to figure out a breakdown? It was terrible of course to take up this matter for the first time, but the eyes are afraid, and their hands are doing. Well, the first pancake is naturally, nothing happened because I didn’t even know which side to approach him. We agreed with a higher office about my training, went, looked at how this is done, under the sensitive leadership and supervision of the master, he went over the device and got involved.Many years have passed since then, our store has been retrained for the trading and maintenance of Kerher equipment, the supply of car wash with various auto-chemists, and we also have an additional direction-sale, installation and repair of the automatic gates of Dorhan.I have been repairing the car wash since 2005 and therefore boldly share my developments and experience with you, all the more soon spring will begin and the washing season will begin. But I don’t climb to the gate, I have enough Kerchers.Today I will tell you how to independently fix my minimum Kerher of the most common K-5 model.twenty. The model is legendary, reliable, but like all the technique on Earth sometimes fails. But it doesn’t matter, it can almost always be repaired. What can break in it? In principle, anything. But fatal cases are quite rare. Basically, devices with the following problems come to me: 1) does not turn on. 2) low pressure. 3) does not pump. Consider the first item first. Do not turn on the washing for several reasons: 1) there is no electricity in the outlet (banalism)-we check the tester. 2) interrupted the supply cable (rarely, but it happens)-we check the tester, if necessary, change. 3-ger cable, section when replacing, select an identical. 3) when turned on, stupidly is silent, the backing valve is silent (treated with its extraction, cleaning and lubricant) (even as an option, a heat of a microswitch, but this is ooooo rarely) 4) the device is buzzing, but does not start. Three options are possible here: either the motor burned out or the capacitor failed or the device was jammed. In the first case, I can only sympathize (but if you find the one who grinds the engine to you, then you can ignite the purse). When the capacitor fails (it usually swells), we change it to a new one with the same nominal capacity or a little more. If the device is jammed, then we eliminate the cause of the wedge. I will sign a little lower, which is why this happens, how it is repaired and how to avoid this in the future. Now on the second point: low pressure. There are many subtleties: it can be clogged with a mud input filter, can acidify the bypass valve, can fail the valve inside the Moika due to garbage or their destruction (there are 6-3 intakes and 3 graduations), the nozzle at the end of the pistol may crack (it It happens plastic and bronze-which of them cracks to explain, I think it is not necessary). Well, the third problem-apparatus does not pump water. The reason for this may be like clogging with a mud in the input filter, garbage entering the valve or its destruction, clogging with mud of the output injector. There are several more points, I will also sign them below in the signatures to the photo.

We begin to disassemble the device. To do this, we will need screwdrivers or battles Torx T15/T20/T30, a large flat screwdriver, a ward of a roller or an open or end head “on 13”, a gas (pipe) key.

The same T20 we turn off 4 screws of the switch cover and remove it. Unscrew the T15 screwdrift 2 screws of the power cable holder

Twisting with an extension cord and a bat and battleship T30 we unscrew the two screws of mounting the circuit breaker and remove it

We extract it from the apparatus for the sticking part by the pliers. The inclusion/disconnection of the device on the gun, pressure and turning on the device in general depends on its cheats and lubricants. The seals on it are rarely torn, so it is enough to simply clean it from oxides and other shmurdyaka.

We clean and smear the bypass with a blue lubricant or, more efficiently, lubricant for MS-1600 calipers. It is not washed off with water, it is inexpensive and sold in car shops. Here the photo is longing, I have not been working with blue grease for 2 years.completely switched to MS-1600.

Next, unscrew the T30 with a bat two screws of fastening the device itself to the body and take it out. We have on a suitable stand.

We move the fan from the shaft with a large flat screwdriver and remove it. It happens that it is torn from the shaft and the seat is broken. It is better to replace it with a new one, but if desired and the possibility of it can still be put on the shaft with the help of improvised means.

We install the engine vertically pumping the top into some suitable stand, if only the motor shaft crawl. Unscrew the 4th bolts of fastening the pump to the motor and remove it.The pump consists of 2 halves. We take out a plunger with springs from it. Using a screwdriver half a pump.

If the springs are broken (the device works with jerks), replace them with new. We examine the condition of the plungers, their mirror should be even, without bullying, hollows and other indecentities. They may have a raid of dirt or cutting products of cuff-curtains all superfluous using sandpaper P1200/P1500. If traces of visible or tangible wear are present on plunges, then they must be replaced. If the plunger is jammed in the case, then this is a bad sign of the replacement in this case, the plunger and the oil bath case are sent. If in an oil bath instead of oil there is a certain substance of the color of coffee with milk or the like, then this means that water has got into the oil, the reason for this is usually the wear of the plunger oil seals. It can occur both from time and from hot water work. All car washouts work only in cold water! We drain the old oil (or emulsion, which is “coffee with milk”). We take out a slanting puck. Check the rotation of the engine shaft and planting it in bearings. There should be no axial movement!

Carcher K5 Service Service.200

Hi all!This record we are talking about washing, why in the board of the car, because, firstly, it was first lit up here, and secondly, much more people are signed on a car than on me, and the record, I think, is useful.The sink seemed to work, but one point appeared, namely, when the gun button was released, it did not turn off, but worked quieter and when the gun button did not create normal pressure, returned to the normal direction, if the nozzle was transferred to Min, and then in max. began to blow normally.Remembering the post alexmax161 about serving his sinks and watching a couple of videos in the net, I decided to get into the sink with my handles.What can I say, disassembly and maintenance, and even repair with the replacement of any parts on this sink is simple even for a person distant from technology.So, let’s get down.We put the sink with the black part of the housing up and see six holes, they have six Torx 15 screws in them to unscrew them precisely a screwdriver, because the distance to them is about 6-7 centimeters, and the hole is not wide (my auto tool remained unstable).

By unscrewing these six screws, we remove the black part of the case and see the insides.

My work was reduced to servicing the upper part where the pistons are located:. I knocked out two pins in the junction node, under it valve.

My electric weed wacker broke. Repair video.

red. screws (4 pcs.), blue. tubes, pulled out with an effort from the metal part, green. buttons node, is assigned to the side.

Collected all this business in the corps, and trial launch. It works quieter, blows as it should.Peace for everyone!

Malfunctions and their elimination

Electric and gasoline trimmers have typical breakdowns and malfunctions. For devices running from an internal combustion engine, this is:

  • problems in the carburetor;
  • engine breakdown;
  • problems with the fuel system;
  • breakdown of the gearbox, starter, muffler;
  • blockages;
  • Air filter breakdown;
  • Problems with ignition coil.

Electric units have specific breakdowns:

With simple problems, you can make a trimmer repair for grass with your own hands.

Why is a trimmer not starting for grass

The most common reason that the unit does not start is the use of poor.quality fuel. The choice of gas stamps below AI-92 can disable the lawnical mower. If high.quality fuel is used, you need to look for other reasons. To do this, carefully check all nodes and systems. The checks are subject to:

The device may not start after prolonged downtime. Before turning on a trimmer for grass, you need to study well the instructions for operation. The solution of many problems is indicated in it.

If it stalls when you press the gas

There are several reasons why a trimmer for grass stalls when gas is pressed:

  • The first reason is the dumping of the carburetor.
  • Fuel valve.
  • Fur valve blockage.
  • The weakening and sagging of the carburetor cable or sagging of the fuel intake hose.

So that the described problems with the lawn mower do not arise, you need to carefully monitor the condition of the device and its blocks. Timely cleaning, washing of the unit and spare parts allow you to increase its life.

Starter breakdowns

The most difficult breakdown of the starter occurs when the rope is broken and winding it into the flywheel of the operating engine. As a result, the spring may burst and the pulley plunges. In this case, only a complete replacement of the spare part will help. This breakdown rarely occurs. often:

In this case, it is easy to fix the starter yourself. The manufacturer has prepared a instruction for this.


Caring for the motorcade gearbox consists in the timely lubrication of the unit. The absence of one can lead to rapid wear of the gear and jamming of the gearbox module.

The main malfunctions of the trimmer gearbox for grass:

  • severe heating of the gear component due to the use of low-quality lubrication or its absence;
  • shaking of the shaft during the rotation of worn bearings;
  • staggering or flowering from the bar of the gear ratio as a result of damage to the case;
  • Lack of rotation of the output shaft with a knife due to wear on the teeth on the gears.

Most of the malfunctions in the gearbox are associated with the destruction of bearings.

This happens due to the use of low-quality lubrication or its complete absence. Another reason for the failure of the gearbox is the operation of a trimmer for grass at the limit of its capabilities and the hit of foreign objects. To replace a faulty bearing, a gearbox is disassembled.

Features of the repair of electric models

Electric models of trimmers operating from the network have several main blocks:

Each electrimmer block has specific problems. In the mechanical part, they depend on the presence of a fishing line used as a cutting element. Reasons for the termination of work:

You can identify the problems of the electrical part of the electrocos using special tools:

To eliminate problems, a soldering lamp is needed.

  • a malfunction of the power cable;
  • problems with an outlet and fork;
  • the failure of the control handle;
  • combustion of the starter winding, engine replacement is required;
  • Contact breaks can be corrected independently using a soldering lamp.

How to adjust the carburetor

The module adjustment is carried out by the manufacturer. During the operation of the device, after repairing or cleaning the module, it becomes necessary to adjust the carburetor.

Carburetor setup does not require replacement of spare parts. Debugging is done with the help of 3 screws that are available in the design:

How To Refill a Spool on Stihl FSA 57 String Trimmer. AutoCut C 3-2 Linehead

  • L. controls the supply of fuel at low speeds;
  • H. controls the fuel consumption and temperature, and is also responsible for supplying gasoline at high speeds;
  • T. is responsible for the idle engine.

Adjustment of the carburetor of the trimmer for grass is carried out after the engine warms up. For this, 10 minutes of operation of the device at idle will be enough. The rotation of the mowing head at idle allows you to start directly to debug the screw t. It is turned counterclockwise to the cessation of rotation. Then the screw h is scrolled to the right and left to find the position in which the idle speed will be maximum. The screw is turned off on ¼ full turnover counterclockwise from the found point, this will be the working position.

According to the same technique, the screw l. After repairing the carburetor, the module is necessarily tuned so that the device works correctly.

Karcher Vario Power (solution) stopped working

So, after two years of infrequent sinks, I suffered the fate of many owners of the high pressure of Kerher. A plastic nozzle in a jet tube burst in half. Glue for cosmofen plastic in double gluing did not help.

Finding information that metal nozzles are in new tubes, I stopped looking at them, as a result there is the same plastic.

There is no point in changing the awl for soap, so we are looking for a solution.

Immediately on the drive I found one of the options, this is the introduction of a copper tube into the nozzle. The idea is good, the main thing works)

But there is no time to pass fire and copper pipes, so I liked the decision from the Ford club is proposed to take a metal nozzle from the sterwins manufacturer’s jet tube at a very affordable price 348 to Leroy Merlin and dance a little with a tambourine, the main thing is again working)!

But I am the smartest, I thought and buy a kerher and business adapter, despite the fact that all the penny costs)) I needed three devices of TC only an adapter and the nozzle is not compatible without an extension tube

I came to the garage to try out a miracle design

As a result, AVD began to work with jerks, due to the fact that the nozzle in the new tube is designed for less pressure. He slightly increased it with a drill, took off the pack of 0.1 mm on the advice of the drivers, but he did not like the resulting fan, too “vague”.

Well, on the snack, those who are faced with the same problem have a great solution)!Namely, a nozzle.item.coated from bronze!

But where you can order it Her-VP-120-VP-145-VP-160/only a little will wait for delivery. There, they did not order the TC, they make the same size of the nozzle for sinks with different pressure, and this is a jamb! Kerher repair.

It all started with the fact that I decided to wash the car in early October. Took out, connected, began to wash. No pressure and water runs from the sink. And then I realized that things are bad. He opened the lid. Turned on and saw a fantan of water. I realized that there was a minus temperature at night and it was torn. And although there were 10 degrees in the afternoon and there were some kind of hints in the cold. Since this case is not a warranty and arose as a result of improper storage, it makes no sense to take the center to the service. over, he already handed over the vacuum cleaner once and they seized. They said they were operated wrongly. Disassembled the pump and saw a crack in the pump cover

Then he tried to solder the soldering iron, soldered the grid. But all in vain literally almost after a moment again a crack appeared in this place, and even the mesh serving as a ligament did not help.

As a result, I soldered 3 times and everything is porpoplicated. I went to the service center to look for this spare part, and the price for it is from 2500-3200r. A good such price tag on a piece of plastic if you consider that the new sink is such 8500r. In short, the part of the chassis and almost every slica of sinks burst precisely. Hence the 3 rubles. As a result, buy non.fry since for 3700r you can buy a new Kerkhire K2 series. And calmly wash wheels, arches, well, and the paths of vodvore. Having set the whole Internet found the forum where everyone complained about this problem. And one person said that he solved the problem by staging holes with self.tapping screws and all. Since this part of the part where the crack is responsible for the absorption of the shampoo and the shutdown of the sink during the pressure of the pressure. Follow that if you drown the holes, the shampoo will not suck (all exactly unnecessary thing). And Kerher will tear from the over.grade high pressure of the emerging in the system, since the valve will not work.Thus, you just need not to turn off the gun and the sink will work constantly as a vacuum cleaner while not to do not make food.These holes must be jammed

To wrap the screw into the lower hole, you need to drill a hole under the screwdriver

Next, kill the holes and fix the gun to the position openly

We collect everything back and use. Thus, of course, we are collective farm, but we save almost half the cost of the sink. I hope that this article will help someone at least since I myself was tormented in finding a solution to this problem.

Karcher K 3 washing repair.200

Anyway. Hi all. For a long time, Vera and True, the Karcher’s high pressure washing. But recently, slowly, gradually, she began to lose power, periodically began to “touch” until it came to the point that she just stopped grabbing the pressure for the foamy nozzle. There was no foam, but gave out only some emulsion from water and chemistry. During this time, I have never conducted her maintenance, I repent, but then I thought that the hour of X came, and it was time to deal with the sink from and to, to repair, and at the same time spend her then.

For disassembly, I had to buy a long screwdriver for Torx bats.

The lubrication over time has turned not clear what. And somehow she became suspiciously few.

Cleans everything of the old lubricant and begin inspection of parts for defects.Here, there are three oil interflowing oil seals, even though their condition was not bad, nevertheless dismantled once, then they were replaced by their replacement.

But the gasket on the water, high pressure, in it a crack, burst. Therefore, one piston did not work, hence vibration and insufficient pressure.

For replacement, it means three oil seals on butter, three water gaskets and filter will go.

Here is the list and articles exactly what I need: 6.362-875.0 Ring with Diam groove. 12x20x5 3pcs.9.078-015.0 Ring with groove 3pcs.5.731-598.0 filter of fine water purification of water to photograph new spare parts.

When I was in the service, Kerher bought a grease from the guys, it is the one that they use to repair the sinks. Blue, interferes with motor oil. Oddly enough from the factory, too, a grease in the form of a gel. They say the oil still flows through the elastic bands, but the gel is not.

Change the gum on the pump and collect everything.

All is ready!The test drive has been passed, Kerher works properly, the pressure is like a new one, not troit, it became quieter and smoother to work, probably all the same lubricants were not enough for him. I am satisfied with the result. It was possible to fix the sink on their own and not to change the pump as many as many thought, although the pump and plastic, but the condition is good and the material is strong. Still will work and delight the puff of me and the car with its work.Thank you all for your attention.