Replacing the clutch cable DDE. The device and principle of operation of the starter on the trimmer

How to make repair of the lawn mower with your own hands?

Those who have land are very familiar with what struggle is weed.

Especially when it often rains and the grass grows not by the day, but by the hour. Earlier, and sometimes even now, this issue was resolved with the help of a good old braid for grass.

But technologies are not standing still and now in this case, assistants such as electric and gasoline lawn mowers help.

The gasoline mower has several significant advantages over electric, such as mobility and lack of danger of electric shock. But there are many drawbacks, for example: high price, a lot of noise, expensive fuel and significant weight.

Electric mowers are cheaper, easier, work on inexpensive energy, and are not difficult to maintain and repair. These advantages become the main reason for their great popularity among buyers of this type of technique.

But despite the pretty good quality, improper operation and a lot of load, they can disable the device. In such cases, you should not immediately carry the device to the repair shop, but try to find and eliminate the cause of the breakdown yourself. over, as mentioned above, electric lawnmands do not have as many nodes and details as gasoline.

The main thing is to have some tools and faith in yourself. In this article, I will just show you how I did my own repair.

AL-KO, the lawn mower of the company, has serious problems in work, namely: the engine stop without load and its strong overheating, was taken as an example. The motor stops, buzzes and start it again, only re.pressing the “Start” button helps. The button has to restart almost every 30 seconds, and with further work and more often.

Of course, you can work, but it is very annoying and gives the feeling that somewhere the problem is. Therefore, I wanted to figure out where?

After the mower was working within an hour, the engine temperature was measured. It was impossible to touch him with a finger. He directly radiated heat. If you continue to pay attention and continue to work on such a mower, an electric motor will inevitably fail.

It is necessary to determine the cause of the motor overheating. To do this, remove the top cover of the case, under which the engine is located and its power chains.

The lid is held on six screws with a hat under a cross screwdriver.

Unscrew these screws and remove the lid. upward.

Having removed it, you can see the impeller, the capacitor, two connectors and the engine itself.

At first glance, no special problems are invisible. The engine winding darkened slightly from the temperature, but so far it is not critical.

To more carefully inspect the capacitor, it is necessary to unscrew the mount and pull it out.

The capacitor of some external damage did not show.

To check it, you need to disconnect the capacitor and feed the engine for a short time. If he did not start and began to buzz, then the capacitor is intact, because the engine was launched with him. Disconnect the power and connect the container connector back to the engine circuit.

Next, try to twist the impeller. It is mounted on the axis of the rotor and rotates rather tight.

And the reason for such severe rotation is a mechanical brake, which for safety stops the engine rotation when the power is turned off.

It looks like a sleeve that moves freely from top to bottom, along the rotor axis.

Когда напряжение на двигатель не подано, эта втулка прижимается верхней частью о крышку, на которой приклеено две резиновые полосы. Thus, the knife is inhibited on the rotor shaft.

When feeding, the brake sleeve under the influence of the magnetic field is drawn to the center of the rotor and provides free move.

With a careful examination, this sleeve with the brake noticed that at the time of turning on the engine, the brake is retracted and gives the shaft free rotation, but after 2-3 seconds it is released again and begins to slow down the motor. This should not be. Hence the stop of the knife during operation and overheating of the engine.

To find out what is the reason for this work, you need to remove and disassemble the engine.

To do this, disconnect the connectors and put the device on the side to get to the clamping screws. Access to them closes a knife with mounting elements.

To remove it, first you need to unscrew the knife bolt (cm. Figure below).

Direction of rotation, like a regular bolt, and not with left thread. That is, unscrew it counterclockwise, and tighten the clock.

The head of the bolt is plastic, so using the key, it must be well planted so as not to “lick” the edge.

After extracting the bolt, the knife and its plastic disk are removed.

Under it is a height sleeve. With its help, you can slightly lower the knife.

Adjustment is carried out by the washers put under the sleeve (see. drawings below).

We remove everything, only the engine shaft and the hexagonal screws of its fasteners remain.

The key for these bolts has a distance between faces of 6 mm. Unscrew them counterclockwise. Removing the last screw, with one hand, hold the engine.

Next, put the mower on the wheels, and clasping the engine with our hands. we raise it.

To disassemble the motor, you need to free tightening studs. We unscrew them all.

Remove the impeller with two screwdrivers.

We proceed to the removal of the back cover. A wooden block and a hammer will help this.

But first you need to mark the position of the covers with something sharp to the engine body.

Put the engine on the side and hit with a hammer, through a wooden gasket, on the rear shaft.

The motor at that moment should hold another person.

We hit until the axis comes out of the bearing to the end.

How to remove clutch on a trimmer / how to remove a clutch on a benzocosa

• To relieve clutch on a bush (lifting clutch on a gas station. The same thing) must first remove the muffler cover, a metal stand, the starter cover and the cylinder cover so that they do not interfere with the lid of the clutch cover of the bush.
• Remove the lid of the shock absorber (unscrewing two side screws), unscrew the shock absorber clamp bolt and remove the tube from the shock absorber.
• Unscrew 3 or 4 bolts and remove the clutch cover.
• We evaluate the wear of the brake pads and the clutch drum, we see if the spring is broken and check the condition of the bearing.
• To replace, for example, the gripmers of the trimmer for grass (weights), it is necessary to remove the clutch spring, then unscrew the pin bolts on the blocks (if necessary, after blocking the crankshaft, pushing the cable into the hole in the piston is located in the NMT).

While the bureaus is idle, the clutch pads, although they rotate with the crankshaft, do not touch the clutch, since they are compressed by the spring and do not transmit the torque from the engine to the cutting equipment.

When the engine operates at revolutions above the idle pass (above 4000 rpm), the masses of the couplings under the influence of centrifugal force expand (winning the force of the spring) and rests on their outer friction surface inside the clutch drum, they begin to displace it, passing it, passing the torque from the engine on cutting equipment of a bush cutter (or lawn mower).

Read the video on how to turn on the lawn mower correctly

16 Thoughts about “Clutch of a trimmer for grass. malfunctions, causes and methods of elimination”

Hi, tell me why springs break on the clutch of a trimmer for grass

I think the clutch spring burst, the clutch spring of the trimmer for the grass often breaks due to:

Wear of the pads and, possibly, the clutch drum (which leads to lengthening the spring with longer than with normal operation).

Uneven wear of the pads on one side (spring bend).

Wear of the fixing bushes of the pads (causes backlash back and spring voltage).

Make sure that the fasteners of shoes are tightened and the drum of the trimmer coupling does not swing for the grass.

Incorrect installation of the clutch spring is not possible, inserting the screwdriver into the hole, pulling the spring, trying to insert the ear in the hole in the hole. It is necessary to remove the pads from the braid, hook the ends of the spring behind the holes in the pads, put the overlays in the normal position to each other (in the hands of the inserted spring), then install the overlays assembled with the collection of the braid and tighten the mounting elements (special bolts, preferably new ones, so that new ones are desirable to make it possible They did not unscrew when working).

Incorrect work of a trimmer for grass. The mowing method pressed on gas, released gas, pressed on gas, produced gas due to adhesion of clutch and springs, which leads to its fragility and premature wear of the trimmer coupling. During the mowing, it is necessary to try to maintain the same engine speed, and with the help of a throttle, adjust the speed only depending on the load (depending on the density of the grass).

Replacing the Huter Lawn Medical Grush drive cable

It may happen that the drive will stop working in your lawn mower. In this case, there may be many reasons, first about the simpler ones: the breakthrough of the drive cable or a belt break is just checking it, just examining the lawn mower, if you find a break, you should replace a belt or a cable. We want to warn that it is often enough to do this at home and without certain knowledge it will be quite problematic, sometimes special tools are required to replace the belt or cable. The next thing that can cause the absence of the drive. the drive cable is stretched or the belt stretched, these breakdowns are usually eliminated, as a rule, it is quite easy, just should adjust the tension to adjust the tension.

As a rule, the manufacturer provides for this possibility. A cable or belt should be adjusted with a stretch mechanism, in such a way as to increase the tension. If as a result of adjustment, nothing has changed and the wheel drive has not appeared, it is worth looking deeper. But recall that it is often better to contact professionals! If, as a result of your adjustment actions, you did not get the desired result, then the reason for the absence of a drive may lie in the ratchet or in the gears of the drive.

The failure of the drive gears is as a rule due to natural wear or the cause of the wear of the gears may be incorrect speed adjustment or incorrect control (the operator does not turn off the drive when driving back) the drive gear operates in the drive axis, the second on the wheel. The wear of the gears occurs gradually and usually in such cases, the drive first disappears on one wheel, as a result of which the lawn mower begins to pull towards the most worn gear. Also, the reason for the lack of a drive may be corrosion with a lack of lubrication in the ratchet mechanism of gears, corrosion, wear and jerking of bearings or bushings of the drive axis. Well, the biggest problem is the failure of the very gearbox of the drive. The drive of the lawn mower should be monitored and with proper service, the service life of this unit can be significantly extended! We repeat, with problems with the drive of a lawn mower, you better contact professionals !

How to make repair of the lawn mower with your own hands?

Those who have land are very familiar with what struggle is weed.

Especially when it often rains and the grass grows not by the day, but by the hour. Earlier, and sometimes even now, this issue was resolved with the help of a good old braid for grass.

But technologies are not standing still and now in this case, assistants such as electric and gasoline lawn mowers help.

The gasoline mower has several significant advantages over electric, such as mobility and lack of danger of electric shock. But there are many drawbacks, for example: high price, a lot of noise, expensive fuel and significant weight.

Electric mowers are cheaper, easier, work on inexpensive energy, and are not difficult to maintain and repair. These advantages become the main reason for their great popularity among buyers of this type of technique.

But despite the pretty good quality, improper operation and a lot of load, they can disable the device. In such cases, you should not immediately carry the device to the repair shop, but try to find and eliminate the cause of the breakdown yourself. over, as mentioned above, electric lawnmands do not have as many nodes and details as gasoline.

The main thing is to have some tools and faith in yourself. In this article, I will just show you how I did my own repair.

AL-KO, the lawn mower of the company, has serious problems in work, namely: the engine stop without load and its strong overheating, was taken as an example. The motor stops, buzzes and start it again, only re.pressing the “Start” button helps. The button has to restart almost every 30 seconds, and with further work and more often.

Of course, you can work, but it is very annoying and gives the feeling that somewhere the problem is. Therefore, I wanted to figure out where?

After the mower was working within an hour, the engine temperature was measured. It was impossible to touch him with a finger. He directly radiated heat. If you continue to pay attention and continue to work on such a mower, an electric motor will inevitably fail.

It is necessary to determine the cause of the motor overheating. To do this, remove the top cover of the case, under which the engine is located and its power chains.

The lid is held on six screws with a hat under a cross screwdriver.

Unscrew these screws and remove the lid. upward.

Having removed it, you can see the impeller, the capacitor, two connectors and the engine itself.

At first glance, no special problems are invisible. The engine winding darkened slightly from the temperature, but so far it is not critical.

To more carefully inspect the capacitor, it is necessary to unscrew the mount and pull it out.

The capacitor of some external damage did not show.

To check it, you need to disconnect the capacitor and feed the engine for a short time. If he did not start and began to buzz, then the capacitor is intact, because the engine was launched with him. Disconnect the power and connect the container connector back to the engine circuit.

Next, try to twist the impeller. It is mounted on the axis of the rotor and rotates rather tight.

And the reason for such severe rotation is a mechanical brake, which for safety stops the engine rotation when the power is turned off.

It looks like a sleeve that moves freely from top to bottom, along the rotor axis.

Когда напряжение на двигатель не подано, эта втулка прижимается верхней частью о крышку, на которой приклеено две резиновые полосы. Thus, the knife is inhibited on the rotor shaft.

When feeding, the brake sleeve under the influence of the magnetic field is drawn to the center of the rotor and provides free move.

With a careful examination, this sleeve with the brake noticed that at the time of turning on the engine, the brake is retracted and gives the shaft free rotation, but after 2-3 seconds it is released again and begins to slow down the motor. This should not be. Hence the stop of the knife during operation and overheating of the engine.

To find out what is the reason for this work, you need to remove and disassemble the engine.

To do this, disconnect the connectors and put the device on the side to get to the clamping screws. Access to them closes a knife with mounting elements.

To remove it, first you need to unscrew the knife bolt (cm. Figure below).

Direction of rotation, like a regular bolt, and not with left thread. That is, unscrew it counterclockwise, and tighten the clock.

The head of the bolt is plastic, so using the key, it must be well planted so as not to “lick” the edge.

After extracting the bolt, the knife and its plastic disk are removed.

Under it is a height sleeve. With its help, you can slightly lower the knife.

Adjustment is carried out by the washers put under the sleeve (see. drawings below).

We remove everything, only the engine shaft and the hexagonal screws of its fasteners remain.

The key for these bolts has a distance between faces of 6 mm. Unscrew them counterclockwise. Removing the last screw, with one hand, hold the engine.

Removing and disassembling the starter, replacing broken parts

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

Everything should be done carefully, observing safety precautions, mainly that the spring does not injure the master if an accident.

Parsing the starting node

They disassemble the launch mechanism in order to install new parts instead of broken in the following sequence:

• spin a screw with a screwdriver, fixing the pulley with a starter lid;
• take out a spring and antennae;
• Remove carefully with the pulley (you need to unscrew the head or work, having dressed the glasses and gloves before);
• determine why the launch mechanism has broken;
• If the spring collapses almost completely, then it is replaced;
• When the spring exits from the hook, it is installed in the original place, bending the antennae before this (the photographs show the laying process);

To change the spring, you should work carefully and accurately: it can, under the influence of the effort caused by the installation of it in place, accidentally burst. Even if you carefully remove the video, then the spring strip flies very quickly from the coil and can injure your hand with its sharp edges.

Immediately putting a springy plate in the same place does not always work. It often slips, so attempts are required to repeat until the desired result is achieved.

Starter assembly

The assembly of the starting node is carried out in a number of stages:

When making the stated manipulations, it is necessary to lay two goals. If this is not done, then the spring over time damage the plastic cup, and when it is pulled. Because of this, a feeling appears, as if the spring had flown. To eliminate such a drawback, you need to install this part of a larger length or an additional goal.

When such spare parts are absent, you can just unscrew the screw a little, and the starter knot will begin to work without shaken. But this option is temporary. it is better to repair qualitatively as quickly as possible.

Spring tension

After installing the spring, it should be pulled. The following actions are performed for this:

• Remove the handle from the starter cord;
• Then the rope is inserted into the coil groove;
• They stretch the spring, rotating the coil in the direction opposite to the clock of the clock arrow (reviews);
• make the desired number of revolutions specified in the instructions for the use of the trimmer model used and the corresponding length of the cord used;
• At the very end, the rope is threaded into a hole designed for this, located in the starter cover;
• put the handle in place, fixing it with a node.

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

• Squeeze the suitable piece of the plate into the groove at the location of the spring hook;
• drill holes on two sides of the groove in the coil, into which the spring hook is inserted and fix it using a wire.

Replacing a torn cord

A torn rope is replaced in the following sequence:

• The old cord is removed;
• choose a suitable rope (thickness and length);
• Having reached it through a special hole in the coil, a knot is tied;
• Sprinkle a spring, producing the required number of revolutions;
• Fix the pen.

It is better to stretch the spring plate along with the partner so that the edge of the cord does not hit the starter mechanism.

It is easy to assemble a starter on a trimmer and wound a spring, only you should do it carefully and with caution. For different models, the gas tanks of the launching mechanisms are the same, so they are repaired in a similar way. In this case, there are some nuances associated with their constructive features.

How to change the clutch cable

To find out how to change the clutch cable, you need to study the instructions well and follow it. Before work, prepare the necessary tools and materials, namely:

• a new copy of the cable (individual for each specific model);
• a jack for lifting a car (it is better if you find a observation hole);
• set of multi.caliber wrench;
• Screwdriver Set;
• For the finish processing of the drive, a lubricant or graphite composition is needed.

To change the drive clutch cable, round.drawers will require.

• Before the dismantling of the damaged mechanism, measure its free part of the lower tip located near the gearbox.
• Move the cable forward. Then remove its tip from the opening of the clutch turning point.
• The cable membrane of the crankcase, located on the surface of the crankcase, remove it from the fixing bracket.
• Directly in the car interior, disconnect the cable tip and clutch pedal.
• Remove the device towards the engine compartment.
• The manipulation of the installation of a new mechanism is similar to actions at the dismantling stages and are carried out in the reverse order.

At the end of the installation of the cable, its initial adjustment is carried out. The following actions must be performed:

• make the interval measured from the clutch fork for the clutch to the damper (the distance should be the same as indicated in the instructions);
• determine the size of the interval between the tip of the cable and the end part of the damper (we check the resulting distance with the recommended leadership);
• in case of inconsistency of the size, make the device adjustment using the adjusting nut;
• Check the adjustment (it is necessary to press the clutch pedal several times, after that make measurements again: in case of non.compliance with the results in the fact that are indicated in the instructions, adjust the re.adjusting);
• At the end, tightly tighten the locknut.

The time you spend on all operations will not exceed 15 minutes. Be sure to, before changing or adjusting the mechanism, read the tips and recommendations of the car factory regarding the repair of the clutch. In addition, it is necessary to find out information about the parameters for adjustment.

As a rule, the clutch cable is equipped mainly by production. Foreign companies prefer hydraulics. Of course, there are foreign cars equipped with a clutch cable. However, such machines are rare.

How much does the clutch cable cost? Given the price of a new spare part for work, you will have to pay about 2 thousand.

What to do if there is no way to change the clutch cable on the spot

If one day happens that the clutch pedal is “lost”, then it is highly likely to say that the cable has broken and it needs to be changed. It is important in this difficult situation not to give in a panic that will not lead to anything good.

First, calmly drown out the car engine. Turn on the emergency signal. If, having looked under the hood, you were convinced that your fears about damage to the details are not in vain, do the following:

• Sit behind the wheel and turn on the first gear. It is quite possible to do this even with a drowned motor and a non.working adhesion pedal.
• Look in the rear view mirror to make sure of your movement. Run the engine. The car should jerk forward, making a few jerks. You must immediately press the gas pedal to start moving.

There is a chance that you will be able to go only at first speed. However, if you have some minimal skills, you can switch transmissions even with faulty adhesion. In this case, you must try to just catch the right moment. To make everything work out, accelerate to the required speed, remove the leg from the gas pedal, set the switching lever to the second gear. Use neutral speed to stop.

In the case of a complete stop, it is necessary to adhere to some rules. The most basic thing is by no means slow down on the lifting in the hill, because it will be very difficult to move, it is almost impossible. In this situation, the battery will not withstand attempts.

It is more correct. to stay on a flat section of the road or under the hill. Of course, the best option is to call the tow truck. Then vehicles will be delivered to the right place where the part will be changed without problems, while the checkpoint will not be damaged.

• If the clutch cable breaks out, this is not a sentence. With such a defect, it is quite possible to go further. But the driver does not always manage to catch the moment and turn on the desired program in time, which is why the checkpoint itself may be slightly damaged.
• Well, if there is an opportunity to get to the parking lot on your own, without outside help. Otherwise, you should dwell on the side of the road and think through your further actions.
• Under no circumstances, it is impossible to stop before the rise, since it will be almost impossible to move.
• Immediately after starting the engine, you should press the gas pedal.

You can rely on these recommendations in other situations. For example, if the squeezed bearing and clutch breakdown damage.

The most common problems

Here are the most common malfunctions:

• the engine does not start;
• The motor stalls arbitrarily;
• The engine does not gain momentum or does not hold them;
• Immediately after the start of the mowing, the engine speed falls and it stalls or works with interruptions;
• smokes strongly;
• It goes badly;
• does not stop even after the operator released the wheel drive lever;
• shakes hard;
• Poorly cut the grass.

The engine does not start

There are quite a lot of reasons why the motor does not start:

• empty fuel tank;
• a air filter is clogged;
• a muffler is clogged;
• The ignition switch is installed in the wrong position or faulty;
• The air damper control lever is in the wrong position;
• faulty candle;
• broken or clogged carburetor.

Primary inspection

To establish the real cause of this defect, you must first conduct a full external inspection and make sure that the openings of the air filter or muffler are not clogged, there is gasoline in the tank, and the throttle control lever and the ignition switch are in the correct position.

If everything is in order with this, then it is necessary to carry out pre.launch work, including cleaning air or fuel filters, described in detail in the instructions for the operation of the mower, and then try to start again.

After making sure that the motor still does not start, the mowing is placed on the table and proceed to a more detailed search for the reasons.

First, the spark plug is twisted and tightly plug the candle hole with your finger, then smoothly, but quickly and strongly pulled the hand starter cable or pressed on the electric launch button.

The moving piston should create sufficient air pressure so that it pushes the finger and goes outside. If this does not happen, then the motor needs serious repairs, which is difficult to make at home, so it is better to take the mower to a specialized workshop.

After all, the reason that the piston does not move after the starter’s cable or rotating the shaft of an electric starter may be:

• Damage to the starter, because of which he does not transmit the energy of rotation to the engine shaft;
• The cut off the flywheel that connects the flywheel and the starter with the engine, and also provides the correct ignition angle.

To eliminate both malfunctions, not only tools, but also skill are needed, so those who do not have the skill of repairing any engines are better not to try to eliminate such problems on their own.

Further check

If the piston moves, then you must first check the fuel supply, for which the candle is thoroughly wiped with a dry clean rag, then screw it into place, and the regulator of the position by the air damper is placed in the “OFF” position, as during the start of the engine.

After that, the fuel is pumped up (if the engine design provides) and twitch the hand starter cable several times or pressed on the electric starter button and hold it for 1-3 minutes.

Then, the lever of the air damper is transferring to the “ON” position and the candle is unscrewed, which is carefully examined.

Wet contacts indicate that gasoline enters the engine and the problem of ignition, and dry contacts say:

In both cases, knowledge and equipment are necessary for proper diagnosis and repair, therefore, it is better to take the device to repair the apparatus to a specialized workshop.

If the fuel comes, then it is necessary to check the external condition of the ignition coil and the high.voltage wire. If they have cracks or poor contact as between the wire and the coil, so at the place of connection of the wire with the candle tip, they must be replaced.

If everything is fine, then you need to check the spark, for which you can use both a deliberately serviceable candle and a bolt suitable in diameter, which is inserted instead of a candle in a high.voltage wire.

The operations described below, if they are performed with errors, can damage the ignition coil, so if you are not sure that you can do everything right, then it’s better not to take risks and entrust such a check to professionals.

The candle is leaned with threads against the ribs of the engine cooling shirt, and the bolt is placed so that it does not come into contact with the mowing case or its engine, and the distance from it to the cooling shirt was 1-2 mm.

After that, disconnect any wire going to the ignition switch, then pull the lever of the manual starter or press the electric button and see if the spark will appear.

If there is no spark, then the device does not start for one of the reasons:

For the repair of these damage, skills and equipment are needed, so those who do not have them are better to trust professionals. If there is a spark, then the problem is in the spark plug, so after replacing it will work.

The motor stalls arbitrarily

The most frequent reasons why the engine stalls during operation are:

• Dirty air filter;
• Dirty fuel filter (only for models with a fuel filter);
• faulty ignition switch (does not completely open the ignition circuit);
• damaged insulation of the ignition shutdown wires;
• faulty air damper drive;
• the tightness of the ignition coil is broken or its winding is broken.

The primary inspection is performed in the same way as described in the previous section. If everything is fine outwardly, then carefully examine and feel all the wires suitable for the switch that blocks the operation of the ignition system, is possible somewhere damaged and when contacting the naked metal of the case, there is a short circuit that extinguishes the spark.

A gasoline lawn mower is a complex motorized equipment that needs proper timely maintenance and periodic repair.

Now you know what malfunctions can independently eliminate most of the owners of gasoline lawners and how to do it, and in which cases it is better to contact the workshop.

Problems with the mechanical part

The mechanical system in lawn mowers with different drives consists of the following structural elements and nodes:

• knife (rotary or cylindrical type) or fishing line;
• transmission mechanism;
• grass collector and grass emission devices;
• wheels, handles and housings.

The failure of the cutting element

The most commonly damaged (for example, bend) or knives are blunt, the fishing line for the trimmer ends. This is easily detected with a simple visual inspection.

The fact that the cutting nozzles have become swept away is evidenced by uneven cutting of herbal stems when the lawn mowed.

Over time, knife fastening can weaken. Their balancing during rotation is disturbed, and vibration, whistle, rattling appear. If the knives are damaged, then during operation the mechanism will begin to perform unguided, sudden, sudden movements. To eliminate the malfunctions of this kind, the cutting elements are set to the right position, replaced with new ones or repaired. If possible, then the blades are pulled again.

Sounds and vibration during work

Uncharacteristic sounds, vibration, rattling appear during the operation of the unit, when the fasteners of its structural elements are weakened: body, engine. These phenomena are more often found in gasoline models, because their motor fluctuates more strongly than the electric motor. To eliminate these phenomena, check all the connections, pulling up the bolts if necessary. It happens that the whistle during the operation of the unit arises due to the entry into an outsider that blocks the video in the aerator. In this case, it is enough just to get it so that the sound stops.

Cutting nozzles do not rotate

Often, when mowing a high herbal cover or hard herbal, cutting nozzles cease to rotate due to grass clogging. This problem in most cases (if it has not led to more significant negative consequences) is easy to solve with your own hands, just picking out a stick with a stick.

Damage to constructive details

Damage to the wheels, handles and housing rarely happen. If they are significant, then they change these structural elements. Methods of repair, with its possibility, in each case, depend on the material of broken parts. they can be plastic, aluminum, steel.

Brand break

With prolonged operation, the mower wear out, stretches, and then the belt breaks off. At the same time, the device’s gasoline engine works, but the knives do not rotate. Self.propelled models can also break off the wheel drive belt: then they stop and do not go. Sometimes the clutch cable simply stretches and it needs to be adjusted.

The most common breakdowns

Any technique sooner or later fails. It is important to know how to repair mowers, because not in all cases you need to contact the service center.

The braid does not cut the grass

In most cases, the cause is dumb or severely damaged knives. To achieve the best results, just change the knife every year. Choose a knife suitable for your model. When the knife is swept away, you can sharpen using electrofig or file. When sharpening, be sure to use goggles and gloves. Angle of sharpening on both sides. about 30 degrees.

Simple sharpening devices can be purchased in stores. Before installing them, it is necessary to turn off the mower from the network and adjust the cylinder positions in such a way as to highlight the maximum cutting gap.

In cylindrical braids, the gap between the knife and the cylinder should be less than the thickness of the sheet of paper. Some of the most modern models have built.in regulators with notches. In other cases, you will have to use keys and screwdrivers to carry out the necessary adjustments. Follow the uniformity of the gap along the entire length of the cylinder. To check the adjustment, insert a sheet of paper between the cylinder and a knife, slowly rotating with your hand. Gradually adjust on both sides until the paper begins to cut purely at each point of a motionless knife.

It is difficult to move the mower

• When the mower hardly moves along the lawn, you may try to remove too high grass and you will have to adjust the level of mowing. When seizing rollers or wheels, they need to be inspected to make sure that there are no scraps of grass and garbage. Most likely, they need to be removed and cleaned.
• If an interference for air is formed, then the lifting force will decrease on the mowing air pillow, and it will become difficult to move it. Air lack leads to overheating of the engine. Disconnect the power and remove the remaining grass from the air intake grilles.

The technique does not turn on at all

Long and wet grass can easily block the knives. Pull the fork from the mains and with the help of a wooden object rotate the cylinder to the other side of the knife until the movement becomes free. For gasoline mowers, this technique cannot be used.

A belt that provides the operation of cylindrical lawn mowers, wears out, stretches and can break through. Remove the belt cover and check, there was a gap or belt just jumped off. Unscrew the mounting screws and move the small leading pulley to a large cylinder pulley. Put on a new belt on a small pulley and slowly rotate the big one, gradually putting a belt on it. Push the pulley to the side to stretch the belt, then tighten the screws.

Before installing the lid, be sure to check the belt tension. the degree of bending should not exceed 4 mm (the indicator may fluctuate slightly depending on the model, detailed information is contained in the user guide).

Gap in the cord

With every use, you unfold, move and turn the cord. This can lead to a break in the internal conductors. For many models, the cord is connected to the screw terminals, which makes it possible to quickly check it and replace it. If double isolation, a two.core cord is connected.

Other models use clamping contacts that facilitate the replacement. Disconnect the power, separate the plastic cover. When you unscrew the clamping bar, pay attention to the connection of the cord to the switch to comply with the polarity of the connection (wire color).

In order to disconnect the cord, insert the hexagonal key into each of the holes in which the conductors are placed. to free the clamp and the conductor. Check where the gap has formed.

If necessary, connect a new cord: twist together all individual wiring of each core, then insert the twisted ends into the corresponding terminals. Pull slightly to check the connection. Then install the clamping bar, the cord bushing and the circuit breaker cover.

What is needed for home repair?

To eliminate any breakdown of the electrimmer, you will need:

• repair skills;
• the ability to repair electrical equipment;
• Understanding the principles of work Electrics;
• knowledge of how a specific model of a trimmer for grass is arranged;
• Corresponding tools.

Electric trimmer for grass is a complex electromechanical device, so you will need the skills of repairing mechanisms and electrical equipment.

In the first case, repairs and adjustment skills will be adjusted:

In the second case, the skill of repairing electrical equipment equipped with electric motors, for example, household appliances or medical equipment, but if there are no such skills, even the ability to repair and lay the wiring is suitable.

After all, the main thing is to understand the general principles of the operation of electrical equipment and work with electrical devices.

Understanding the principle of operation of the electrocos and all its individual elements is one of the conditions of successful repairs, because the task is to restore the normal functioning of the damaged element, but how to do this, if you do not understand the principle of its work and the tasks performed by it?

Loading device Electrics

Separation of electrocos into separate blocks allows you to more accurately determine the damaged part and the reason for its failure.

We offer to use the following configuration of the blocks:

• power cable;
• internal wiring;
• power control elements;
• electric motor;
• barbell;
• intermediate shaft;
• gearbox;
• cutting tool (coil, disk or knife);
• frame;
• Handles.

Devices with the lower location of the engine are deprived of an intermediate shaft and gearbox, however, they have all other blocks, so such a pollinating design is applicable to any electrical model.

Large of blades at home

You can sharpen knives from the lawn mower yourself using the following tools and devices:

Before pulling, you should put on gloves. If the work is performed on a sharpener or using an angular grinding machine, then you need to use the eyes of an abrasive or metal to protect the eyes with a mask or glasses.

Before the knife to sharpen, it is examined for the presence of deformations and the degree of wear. The existing bends are aligned on an anvil or a piece of rails with a hammer.

When working on a sharpener machine, the cutting nozzle is brought to the rotating circle and lean the blade against the emery under a certain inclination. To level the edge, the coarse.grained circle is originally placed. Figure and grinding is performed on a fine.grained circle. If possible, they polish the part with a felt circle. it is designed to polish. Some machines are equipped with devices that allow you to fix the processed parts. this facilitates the sharpening process.

It is recommended to sharpen the blades of knives using manual devices or corner grinders, pre.holding the nozzle in locksmiths. If the cutting edge of the working nozzle is badly damaged, then it can be cut, but only from two sides at once. In all cases, strong efforts should not be applied. As a result, the blades should be sharpened at an angle of 30 degrees.

After turning, check the balancing of the blades. For this, a screwdriver is inserted into the hole under the bolt. Then they raise it in a vertical position: the knife should remain in the horizontal plane. When a skew occurs, the impaired balance should be restored. This is done by a simple grinding of metal with a heavier (outweigh) side of the nozzle. The removal of the layers of the material is performed a little, checking the balance.

Replacing fishing line in a lawn mower

In addition to knives on the lawn mower, a fishing line for a trimmer can be installed. Such a nozzle is a reel on which a nylon thread is wound. There are two varieties installed on mowers: there are two varieties:

The structure of the nozzle is simple: there are two departments in the coil, there is a partition between them, in which there is a notch. The thread is wound on these paths. For its withdrawal from the coil, special holes are provided.

Different models of lawn mowers use cutting nozzles with different fishing thickness thicknesses. This parameter lies in the range of 1.2-4 mm.

In addition, the polyethylene thread varies in the form of its cross.section. This determines the field of use (purpose) of the material. According to the criteria for a fishing line for a trimmer, there may be various types:

• round, which is the most durable variety used to mow grass;
• figured, used in the spent of plants with soft stems;
• twisted, suitable only for thin grass.

There is a professional cord. But this variety is suitable for use not on all equipment models.

The nozzle itself is rarely damaged, only wears out and the nylon thread ends. To resume work, you need to re.wind a fishing line for a trimmer. It is worth buying a cutting thread suitable for the coil installed on the coil.

The order of work when replacing the fishing line in a coil with one osmus

To change the fishing line for a trimmer coil with one osik released, they come as follows:

• turn off the lawn mower, turning off the electric at the same time from the network;
• Remove the cutting nozzle, after stalling the shaft from turning, for example, using a screwdriver;
• disassemble the case, usually taking off its lid by pressing the latch;
• all the details are laid out carefully;
• cut off from two to four meters of fishing line with the diameter indicated in the instructions for the nozzle used;
• put a piece in half to divide it into two identical segments;
• in the ear, located inside the coil, they stretch one end of the cord;
• wind the thread counterclockwise (in a direction opposite to rotation of the nozzle during work);
• leave a small end of the thread, which is exhibited through the hole, fixing first in a special groove so as not to spin;
• collect a coil;
• Install the nozzle on the lawn mower.

When a cutting nozzle with an automatic or semi.automatic supply of the cord is installed, there is a spring inside it. Therefore, analyzing the case, it is necessary to ensure that it does not fly away and does not get lost.

A fixing line for a trimmer PAZ may be absent. In this case, she is held with a hand during the assembly of the nozzle, so as not to spin.

Replacing fishing line in other types of coils

To correctly wind the fishing line for a trimmer into a coil with two protruding ends of the cord, it is necessary to disassemble it. There are two recesses inside. In this case, the ends of the fishing line are laid out separately according to these grooves. Winding is also performed in the direction of the opposite rotation of the nozzle.

There are models of coils that have a different design. In such cases, it is often not required to disassemble the nozzle to insert the cord. The thread is inserted into a special through eye, located inside the coil. Fishing line winding is due to pressing the button. It is located directly on the body of the cutting nozzle and is intended so that with the wear of the cord it can be released new ends, without disassembling the coils.

It is recommended to perform work on replacing the fishing line on gasoline mowers with a pressed button of turning on on.

Before winding a fishing line for a trimmer, it can first be soaked for a short time in water. this will increase strength, as well as the elasticity of the inserted thread. Wrapping metal cables is prohibited. The cord must correspond to the diameter specified in the instructions.

The repair of lawn mowers should be proceeded only after preliminary familiarization with the instructions for their operation. There is the design of the model and the rules for its use. To minimize the probability of breakdowns, it is necessary to comply with the requirements for regular maintenance. You need to use only high-quality fuels and lubricants.

Before starting the mowing of the grass, it is recommended to inspect the pre.processed area for the presence of stones, stumps and other obstacles. This will help to avoid random clashes and unforeseen accidents. It should also be borne in mind that it is recommended to work with dry grass, because it clogs knives and other details of the mechanism slower.