How to renovate electronic trimmer The service center specialists will be able to assess the breakdown and upcoming repairs. Repair of electronic trimmers To keep the lawn in
The service center specialists will be able to assess the breakdown and upcoming repairs.
Repair of electric trimmers
To keep the lawn in good condition, it is comfortable to use the trimmer. There are gasoline trimmers (their engine runs on gasoline) and electronic (powered by the mains). All types of trimmers have malfunctions. Do not repair electronic trimmers without the help of others, you need to contact service center, where can repair trimmer.
It is worth warning right away that repairing an electric trimmer, like other equipment, is not cheap, especially if you need to repair the trimmer motor or replace the coil. In some cases, it is actually easier to buy a new instrument. This can be assessed by a competent specialist who knows how to repair trimmer.
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Trimmer engine repair
Repairing the trimmer motor is usually expensive. However, sometimes you just need to make a new motor winding (at a service center). Users often face the following problems:
How to repair do-it-yourself electric scooter / Trimmer repair/ do-it-yourself electric braids. Affiliate.
disassemble electric mower and looking for a malfunction.
Repairing electric trimmers is not a hassle if you know where to get your trimmer repaired. Neither online forums nor friends will solve the issue of how to repair the trimmer, only professionals will help. If there are no spare parts for a specific model, they will be able to pick up similar ones.
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Any gardening technique does not last forever. After some time of intensive work, it will still fail, it also applies to trimmers. In this case, the repair of garden tools will help you, but for this you need spare parts for it. Spare parts for benzotrimmers can be purchased at any store, the range of choice is quite large and you can certainly find any necessary part just for your tool.
Efco is an Italian company that manufactures garden equipment. The company has been on the market for a long time - since the 1970s. Efco lawn mowers and trimmers differ good quality according to user reviews. Powerful the Efco 8110 electric trimmer has decent performance.
At first glance, a simple device for mowing grass with a two-stroke engine is fine-tuned. Repair of petrol cutters must be entrusted to a specialist or to study the technique yourself, using the operating instructions. Maintenance braids must be kept. Gearbox lubrication, line replacement, and teeth sharpening can be done on our own.
Any type has a hollow rod, in which a connecting cable is placed between the motor shaft and the lower gearbox, which transfers rotation to the working body with the cutting tool. In the upper part there is a carburetor and a motor, at the bottom - a gearbox and a working tool, covered with a casing. In the middle part there is a transverse handle in which the control buttons are located. To unload the arms, there is an unloading belt that holds the bar with the operator's torso.
When choosing a petrol cutter, a two-stroke engine is preferable to a four-stroke one. The two-stroke motor is more maneuverable and easier to repair. With a four-stroke unit, the vibration level is lower.
They follow this, repairing petrol cutters is to troubleshoot;
Before eliminating the malfunction, you need to diagnose, determine the non-working unit.
It is important to know the lubrication points of the tool. Constant care and cleaning of the device after work will extend its service life. Before work, it is necessary to tighten the fastening bolts, prepare fuel and fill the tank.
If the mechanism does not start, it stalls immediately, check sequentially:
It is necessary to fill it with a freshly prepared mixture based on AI-92, the oil is injected for accurate dosage with a medical syringe. This will help you avoid expensive chainsaw repairs.
It is necessary to make sure that the candle is working, gives a spark when it comes into contact with the body. In this case, it is necessary to dry the candle channel, clean and dry the part itself. You can change the candle, but the canal still needs to be dried for 40 minutes. Check the serviceability of the high-voltage wire, there may not always be a contact. A malfunction in the ignition unit when repairing a petrol cutter cannot be eliminated with your own hands.
If with removed air filter and the engine does not stall, the reason is in it - replacement or cleaning is required. Replacing the fuel filter is done with great care. Then check the cleanliness of the breather, remove the muffler mesh and clean the exhaust channel.
The next step will be where you have to find the problem and fix it, taking into account the tiny size of the parts. If the simplest operations have not yielded results, in order not to disrupt the fine tuning of the system, it is better to entrust the repair to a specialist. Where to start diagnostics and how to properly repair petrol cutters with your own hands, check out the video:
The role of the reducer is to transfer torque from the motor shaft to the cutting tool through 2 gears with different numbers of teeth. The torque is transmitted at an angle of 30 0. The number of revolutions of the lower cutting disc is 1.4 times less than that of the engine. Gears must be clean and lubricated. To supply oil to the teeth, there is a hole under the screw on top.
Lubrication of the petrol cutter gearbox is carried out at least once a season. If the work is intensive or there is abnormal noise in the lower unit, it is necessary to lubricate more often.
First, the place where the plug closes the hole should be cleared of soil and grass. Unscrew the plug with a suitable tool, it is included with the saw. We use a grease tube. Either a native lubricant from the manufacturer is selected, or well-known high-quality compounds, such as Oleo-Mas, Litol-24, Azmol 158. We open the protective layer of the tube and lay the instrument on its side. Slowly rotating the knife, squeeze the grease into the gear housing. The gears, turning, carry the composition with teeth over the entire surface. You can also pour grease with a special syringe.
Insufficient or too much lubrication can lead to overheating of the gear unit. An audible knock and backlash indicate a broken bearing or dirt from a damaged boot. Bearings must be replaced with a puller, without using the heating method.
If the gearbox staggers and runs on the rod, it is necessary to replace the housing, or temporarily tighten the knot with a clamp to secure it to the pipe. If the knife stops rotating, it means that the gears do not engage - the teeth are worn out or crumbled. A pair will need to be replaced with a complete disassembly of the assembly.
Disassembly of the gearbox with disassembly of the shaft and bearing assemblies must not be carried out by heating. When heated, the metal loses its strength properties and in the future the knot becomes unreliable. A puller is used to remove the bearings.
When replacing a gearbox, it is necessary to select a new unit, guided by:
The saw headset dulls or wears out over time. The tool becomes tense, the load increases, and the swath quality deteriorates. Metal saw blades are sharpened, plastic ones are changed.
If a fishing line is used as a cutting tool, it gradually wears out, and a new material... The principle of operation of the line cutter is to gradually unwind the coil under the action of centrifugal force. When in contact with the grass, the line is abraded, it is fed from the reel gradually. A special winding is needed so that the two cutting elements come out at the same time and do not get confused with each other.
The illustration shows how to properly wind the line onto the spool. Before winding a new line, you must:
In order to better understand how to change the line on a petrol cutter, watch the video.
We all have to deal with the improvement of personal land plots - in the summer season and, of course, to give nice looking plot:
- you can't do without a trimmer. The reasons for the breakdown of electric trimmers are strong vibration \ during operation \, which affects the various electrical connections of this appliance.
Before us is a photograph with the technical data of the electric trimmer. Trimmer repairs will be accompanied by personal photographs from detailed description repairs.
Line trimmer wiring diagram, simple, consisting of:
and directly the electric motor itself.
The cause of the malfunction at the beginning during a visual inspection was incomprehensible, the trimmer had to be completely disassembled to determine the true cause of the breakdown.
Let's start to disassemble the electric trimmer:
At the beginning, we disconnect the two connected trimmer halves, the control handle from the contact connection with the electric motor itself.
Two photographs \ photo # 2, photo # 3 \ show the sequence of disconnecting the electric motor from the control handle.
To check the electrical connections, we need a simple tool - an indicator screwdriver.
Photo # 6 shows the detachable pin connection from the control handle. To check the electrical circuit of connections from the contacts of the plug \\ photo No. 7 \ to the detachable contacts \\ photo No. 6 \, - for this, you can short-circuit the plug with the fingers of your left hand and alternately connect the plug with the tip of an indicator screwdriver to the detachable contacts.
If there is integrity, there is no break \ photo No. 9 \ in the electrical connections, the indicator light of the indicator screwdriver will glow, that is, the electrical circuit is closed on the LED light of the indicator screwdriver.
When performing this diagnostics, it is also necessary to close the contact of the potentiometer \ push contact \ as shown in photo # 8.
We checked one half of the electric trimmer \ control handle \ - the hand trimmer handle is in good condition and then we need to check the second half of the trimmer, consisting of an electric motor and a capacitor.
For such a check, we need a digital multimeter. You can also use a pointer multimeter or such a device as an ohmmeter - there is no difference at all.
We set the digital multimeter to the measurement range of the least resistance, connect the probes of the device to the socket of the detachable connection \ output contacts of the electric motor \. The device in this example \\ photo # 10 \\ shows one here, - the display reading of the device means a gap in electrical diagram electric motor.
First, let's check the collector motor. We connect the probes of the device to the contacts of the graphite brushes \ photo No. 11 \, the display of the device shows the resistance as shown in the photo - 29 ohms. The reading of the device means the integrity of the stator windings of the collector electric motor.
We wrap two output contacts from the electric motor with the fingers of one hand and touch the contacts of the graphite brushes with the tip of an indicator screwdriver \ photo No. 12, photo No. 13 \.
And when checking these electrical sections, the cause of the trimmer malfunction is found.
In the contact connection of the wire \ photo No. 13 \ with a graphite brush, the contact is broken. Elimination of such a malfunction is not difficult at all. To do this, it is necessary to etch the contact connection with the wire and the contact connection with the graphite brush with soldering acid \ photo # 14 \. Next, apply a small layer of tin with a soldering iron \ photo # 15 \ and solder the wire with the contact of the graphite brush \ photo # 16 \.
So, the cause of the malfunction of the "electric trimmer with line" has been identified and eliminated. As you have seen for yourself, such reasons may be minor breakdowns, which can be determined without any difficulty.
It remains for all of you friends to wish a successful repair in the elimination of malfunctions of various electrical equipment.
Any complex technical equipment has a limited working life. And with an increase in the intensity of its operation, the risk of its failure increases. However, it is within the power of each owner to reduce the number of such emergencies if the rules for use and maintenance recommended by the manufacturer are followed exactly. In any case, you should be prepared for the fact that at a certain period, malfunctions in the operation of the device will still arise. Malfunctions that can occur in the trimmer operation can be of a different nature. However, in some cases it is quite possible to repair the trimmer on your own.
In this case, all the problems that may arise with this equipment can be presented in the form of the following groups.
Main function when using the device assigned to the trimmer head, in which the cutting surface is made of fishing line. In most cases, the device fails due to problems with its supply.
If the failure of the gasoline trimmer is associated with malfunctions in the mechanical part, then the repair technology will for the most part repeat the work carried out with respect to electric models.
To carry out repairs to electric trimmers, you must prepare the appropriate tools:
It is rather difficult to find out by visual inspection what caused the malfunction; in most cases, only the most obvious malfunctions can be identified by eye.
Regardless of the nature of the malfunction, this in any case leads to the termination of engine operation.
Equipment of this type is characterized by a more complex device, since it provides not only a drive, but also a number of other elements: gas distribution system, fuel tank and control.
Considering mechanical damage, it should be borne in mind that clogging of filters should also be attributed here. Operational requirements stipulate that they must change during regular maintenance devices.
Extremely it is undesirable to stop the choice on models of little-known manufacturers because the level of their performance is often quite low. Considering that accessories for petrol trimmers are not offered in every store, it may be difficult to acquire them.
In most cases, malfunctions occur precisely in this area, and each owner can fix such problems with his own hands.
If the failure of the trimmer is associated with an inoperative engine, then in this case it will not be so easy for the owner to understand what caused the problem and how it can be eliminated. It's good if the device still has a warranty, in this case you can take the trimmer to a repair shop, whose specialists will quickly and efficiently cope with this task. Among the most frequently identified and least associated with difficulties in eliminating the causes of engine failure, the destruction of the piston rings should be called. This can be verified by removing the cylinder head and piston.
The owner of a gasoline or electric trimmer always needs to be prepared for the fact that at some point this equipment will need to be repaired. At the same time, contacting a service center is not always the right decision. Often, the causes of a malfunction can be quite simple, which can be eliminated at home. The main thing is to know where to look for it.
However, it is best not to solve such problems, but to prevent them from occurring. For this the manufacturer's recommendations for use and care must be followed exactly behind the trimmer. Then situations when you have to think about repairing a gasoline or electric trimmer will arise much less often. And this will help the owner save a lot of time, effort and money.
The use of various electrical devices greatly simplifies the implementation of many types of work, but unfortunately, all complex products break down sooner or later. Failure of the electric trimmer
will lead not only to the inability to carry out work in the garden, but also to significant financial expenses for repairs. It is possible to significantly save money and increase your own knowledge of the device of this technique if you do the trimmer repair yourself. Before proceeding with this type of work, you should carefully study the principle of operation of this type of household appliances.
The electric trimmer consists of:
Electric trimmer device
A power cable with a plug is connected to the trimmer body, through which electric current is transmitted. In the cavity of the split rod there is a flexible shaft, thanks to which the torque is transmitted to the trimmer coil. The device is turned on by pressing the button located on the handle of the device.
This trimmer design is the most common, but
if desired, you can find products that operate on a battery, as well as with a lower location of an electric motor.
The trimmer can be damaged when working under heavy loads. This situation can arise when the area to be treated is overgrown with tall grass.
Mowing tall grass
When working in such areas, the engine may fail, the bearings may break, and the coil of the electric scythe will collapse. When operating in rainy or very foggy conditions, the trimmer may “burn out” as a result of a short circuit.
Breakdown of this electrical appliance can also occur as a result of frequent use. If household appliance will be used in this mode, then after operating a certain number of operating hours, it will be necessary to carry out mandatory repairs and preventive adjustment of many parts of the electrical device.
If the electric scythe does not show signs of life, then there may have been a break in the electrical cable inside the handle of the case, or the button for turning on the electric motor is faulty.
Start button
In order to diagnose an electrician, you will need to disassemble the handle of the electrical appliance. The work is carried out in the following sequence:
When access to the inside of the electric trimmer is provided, the resistance of the electric trimmer button is measured using a multimeter. If there is no resistance after pressing, then this
the part is subject to mandatory replacement. It is also necessary to check the connection points of the power cable with the internal electrics located in the handle.
device. The contacts should be checked for open circuit with a multimeter. Often such a malfunction can be determined "by eye". After detecting a break in the contact, it is enough to solder the damaged area to restore the operation of the electric trimmer.
In the absence of a multimeter, diagnostic work can be performed with an indicator screwdriver. For this purpose, plug the plug into electrical network and with this diagnostic tool
find the "phase wire" and thus check the presence of electric current before and after the power button. If the phase current is detected in another electrical circuit, then it is enough to install the electrical plug on the contrary in the outlet so that correct diagnostics can be carried out
trimmer malfunction. The second diagnostic option should be done with great care, since there is a danger of electric shock when checking the integrity of the wiring.
If the power button of the device and the sections of the internal wiring are intact, then you should start checking the electric motor. For this purpose, it is necessary to remove the housing cover, having previously unscrewed several screws with a screwdriver.
Checking the electric motor
The first thing to do after accessing the electric motor is to check that the brush assembly is working properly. If the brushes are worn out above the maximum permissible value, then the electric motor may stop completely or work unstable. In the case when the brushes and the collector are in perfect order, you should start "ringing" the motor winding. In order to eliminate the likelihood of breakage in both circuits, you should alternately carry out
checking the stator and rotor of the motor. To perform this operation, you must:
Trimmer motor
When checking in this way, it is possible in 90% of cases to establish the cause of the malfunction of the electric motor. Checking for an interturn short circuit, which can manifest itself only during the operation of the engine, thus it will not work, but such a malfunction can be diagnosed
by indirect signs, which are manifested in a decrease in the power of the electric motor and its overheating. If the electric motor is equipped with a thermal relay, then such an electric scythe, with an interturn closure, will work for a short time, after which the trimmer will automatically turn off. In some cases, the thermal relay can cause a malfunction of the trimmer motor, therefore, in a set of test
measures, the "ringing" of the thermal relay must be turned on using a multimeter or tester.
Digital multimeter
It is very simple to do this: in good condition, on a cold engine, the thermal relay passes an electric current,
In a malfunctioning state, the electrical circuit will be open.
Problems with the performance of electric scythes associated with wire breaks can be easily eliminated by soldering the contacts, but if the motor "burned out", then you will need to perform a complex rewinding process, which can
carried out by a qualified technician only. In many cases, it is much easier and cheaper to purchase a new engine and install it in place of the burned out one. This work can be done independently
in the reverse order of removal of the unit.
If the trimmer electrician is in good working order, then you should pay attention to other types of malfunctions that may appear during the operation of the electric scythe.
If the electric motor of the device turns on, but the reel with the line does not rotate, the causes of such a malfunction may be the breakage of the flexible shaft transmitting the torque. This problem is especially often manifested with improper maintenance of an electrical appliance. For example, in the absence of lubrication inside the rod of the electric cable, the cable will be exposed to excessive friction and within a short time this part will fail. To replace it, it is enough to disconnect the upper part of the electric braid, in which the electric motor is located, after which it will be possible to remove the flexible shaft from the rod.
Flexible shaft
Flexible Shaft Grease
If there are difficulties with the removal of the second part of the cable remaining in the cavity, the lower part of the spit is disconnected with the bobbin and shaft. The assembly of the mechanism is carried out in the reverse order.
Bottom trimmer
The flexible shaft must be thoroughly lubricated with grease prior to installation to reduce the likelihood of repeated failure of this part.
Electric scythe shaft bearing
Flexible shaft rupture can only occur in overhead electric trimmer models.
Electric scythes with a lower engine location do not have a flexible shaft, but malfunctions of such devices can manifest themselves in the form of destruction of the bearing of the main shaft of the electric scythes on which the bobbin with fishing line is installed.
To fix such a malfunction is very simple, it is enough to replace the failed bearing with a new part.
With frequent use and improper care of the electric scythe, the listed malfunctions can appear with enviable regularity. To minimize the likelihood of breakage, it is enough not to overload the device, lubricate rubbing parts in time and do not work when high humidity... Despite some restrictions when working with this, in contrast to petrol trims, there can be no malfunctions in the ignition unit. And such a malfunction as: "the trimmer motor immediately stalls", in principle, can not be. The motor of the electrical device cannot stall because it does not need to be started. To start, just press the power button, so many summer residents choose electric trimmers to care for the surrounding area.
