It is better to tighten the spring plate together with a partner so that the end of the cord does not reel into the starter mechanism.
Assembling the starter on the trimmer and winding the spring is not difficult, you just need to do it carefully and with care. For different models of petrol cutters, the breakdowns of the triggering mechanisms are the same, so they are repaired in the same way. At the same time, there are some nuances associated with their design features.
VIDEO The benzokos is one of the main tools of the summer resident, used to quickly put the land in order. Owners of private houses also purchase this tool for mowing grass in the backyard. The period of active use of petrol cutters and electric trimmers is in the summer. Before starting operation, the tool is put into working condition: rubbing parts are lubricated, the cutting attachment is changed, a fuel mixture is poured into the tank. If the engine does not start at all or stalls quickly, without gaining a sufficient number of revolutions, then you have to look for the causes of the malfunctions and eliminate the identified malfunctions. To repair a petrol brush with your own hands, you need to understand its structure and the principle of operation of the main units. This information can be found in the instructions for use, which the manufacturer applies to the garden equipment without fail. Check for such a guide when purchasing your chainsaw. The imported tool must be accompanied by instructions written in Russian.
A long tubular rod is attached to the gearbox of a two-stroke internal combustion engine. A shaft passes inside the rod, which transfers torque from the gasoline engine to the cutting mechanism. The line or knives rotate at 10,000 to 13,000 rpm. There are holes in the protective housing of the gearbox, into which grease is injected with a syringe. For the convenience of using the tool, the manufacturer equips it with a special adjustable shoulder strap.
A cutting attachment is attached to the brushcutters:
The line, which varies in thickness from 1.6 to 3 mm, is located in the trimmer head. The line is subject to wear during mowing. Changing the line is quick and easy in two ways: by winding a line of the same diameter onto a bobbin or by installing a new spool with line already wound.
Steel knives with double-sided sharpening for the benzokos for clearing the area from weeds, small bushes, hard grass. Knives differ in shape and the number of cutting surfaces.
On the U-shaped, D-shaped or T-shaped handle, which is attached to the boom, there are the petrol cutter control levers. The cutting mechanism is protected by a special casing. Household brushcutters are filled with a mixture prepared from gasoline and oil, which is poured into the fuel tank.The device of semi-professional and domestic brushcutters, equipped with a four-time gasoline engine, is slightly different. The filling scheme is also different: oil is poured into the crankcase, and gasoline is poured into the tank.
The measured piece of fishing line is folded so that one end is 15 cm longer than the second.We put the loop into the slot on the spool and start winding in the direction indicated by the arrow
If you cannot start the petrol cutter, then the first step is to check the presence of fuel in the tank and its quality. For refueling the tool, it is recommended to use high-quality gasoline purchased at gas stations, the grade of which should not be lower than AI-92. Saving on cheap fuel can lead to a breakdown of the cylinder-piston group, the repair of which can take a third of the cost of the brushcutter itself. It is equally important and correct to prepare the fuel mixture from gasoline and oil. The proportional ratio of these components of the mixture is indicated by the manufacturer in the manual. It is not necessary to prepare the fuel mixture in large volumes, since its properties are lost during long-term storage. Better to use a freshly prepared mixture.
When preparing the fuel mixture, pour oil into gasoline using a medical syringe, which allows you to accurately observe the required proportion of components
A dirty fuel filter in the tank can also prevent the brushcutter from operating. Therefore, if problems arise with starting the motor, check the condition of the filter. Replace the filter if necessary. Do not leave the inlet pipe without a fuel filter.
The air filter also needs to be checked. When contaminated, the part is removed, washed in gasoline in the field and put in place. In the country or at home, the filter can be washed in water using detergents. After that, the filter is rinsed, wrung out and dried. The dried filter is moistened with a small amount of oil used to prepare the fuel mixture. Excess oil is removed by squeezing the filter with your hands. Then the part is installed in place. The removed cover is put back and secured with screws.
The air filter, washed in a fuel mixture, wrung out and dried, is installed in place in a plastic case and closed with a lid.
You can see how this procedure is done in more detail in the video:
If all of the above procedures are carried out, and the engine does not start, then adjust its idle speed by tightening the carburetor screw. In the video posted at the beginning of the article, attention is paid to this issue.
Place the tool on its side with the air filter at the top. This arrangement of the chainsaw ensures that the fuel mixture hits the bottom of the carburetor. The engine will start on the first attempt if you remove the air filter and pour a few drops of the mixture into the carburetor before starting, then reinstall the dismantled parts. The method has been tested in practice.
If the first tip doesn't work, then the problem is most likely in the spark plug. In this case, unscrew the plug and check its functionality, and also dry the combustion chamber. Replace the candle that does not show signs of life with a new one.
If the spark plug is in good working order, the filters are clean and the fuel mixture is fresh, then you can use the universal method of starting the engine. Close the carburetor choke and pull the starter handle once. Then open the throttle and jerk the starter 2-3 more times. Repeat the procedure three to five times. The engine will definitely start.
Some pull the handle with such force that they have to repair the starter of the petrol cutter with their own hands. This is only possible if the cable breaks or the cable handle breaks. In other cases, it is recommended to replace the starter. This unit is sold assembled.
Stop the engine and wait for it to cool down.
Disconnect the high voltage wire from the spark plug.
Unscrew the part using a special wrench.
Inspect the spark plug for replacement. The part changes if it is faulty, heavily soiled, has a crack on the case.
Check the electrode gap. Its size should be 0.6 mm.
Tighten the new spark plug inserted into the engine with a wrench.
Install the high-voltage wire to the center electrode of the spark plug.
As you can see, there is nothing super complicated in this procedure.
A new spark plug for a two-stroke internal combustion engine of a gasoline streamer is installed to replace the old part that is out of order
After starting, the engine may stall if the carburetor is incorrectly tuned or misaligned. What are the signs that you can understand that the reason really lies in this? It is very simple, by the vibrations that will be clearly felt when the mower is running. You can adjust the fuel supply with your own hands by following everything that is written in the operating instructions for the tool.
The engine may stall due to a clogged fuel valve. The cause is eliminated by cleaning it. If the brushcutter starts up and then suddenly stalls, it means that the fuel supply to the carburetor is difficult. Loosen the carburetor valves to ensure that the correct amount of fuel can flow to it.
Excessive air intake can also stall the engine. Increase engine revs to allow air bubbles to escape faster from the unit's fuel system. Also, be sure to check the integrity of the fuel intake hose. If you find mechanical damage (cracks, punctures, etc.), replace the part.
During the period of operation of petrol cutters, monitor the condition of the engine cooling system. The channels in the starter housing and the cylinder fins must always be clean. If you ignore this requirement and continue to operate the brushcutter, you can damage the engine due to overheating.
Competent care of the gasoline scythe during operation allows you to use it for several seasons in a row without major repairs
Allow engine to cool before cleaning. Take a soft bristled brush and clean the outside of the dirt. Cleaning of plastic parts is carried out with solvents, including kerosene, or special detergents.
At the end of the summer season, the brushcutter must be prepared for long-term storage. For this, the fuel mixture is drained from the tank. The engine is then started to use up fuel residues in the carburetor. The entire tool is well cleaned of contamination and goes to "hibernation".
As you can see, it is possible to repair the faults of a household petrol cutter on your own. It is worth contacting service departments in case of serious breakdowns. In this case, the cost of repairs should be correlated with the price of a new petrol cutter. It may be more appropriate to buy a new instrument.
The chainsaw is the main tool with which you can stock up on firewood for a bath or fireplace, and you can also use it during construction work at a summer cottage or in a private house. Subject to all operating conditions and preventive measures provided by the manufacturer, the chainsaw can serve for a long time. But over time, minor malfunctions may occur that you can deal with yourself. For example, repairing a chainsaw starter with your own hands is quite possible, subject to the sequence of operations.
Chainsaw starter device: 1 - starter screw, 2 - bushing, 3 - easy start spring, 4 - screw, 5, 6 - starter coil, 7 - deflector, 8 - starter cover, 9 - handle and cord, 10 - screw.
The most common tool breakdowns include the following:
problems in the ignition system;
stopping the chainsaw in the process of cutting;
loss of power during operation;
wear of some structural elements of the chainsaw (brake band, drive sprockets, anti-vibration parts);
problems in the fuel supply system;
malfunctions associated with the starter.
In addition, it is necessary to carry out a visual inspection of the chainsaw before starting work and preventive measures. These include chain lubrication, control of the amount of fuel mixture, and the availability of the required amount of oil.
Unscrew the spark plug to check its condition.
Each of the faults is eliminated according to its own technology. So, for example, repairing the fuel system of a chainsaw should begin with an inspection of the corresponding filter. After that, they check the correctness of the carburetor regulation, which is carried out with the help of screws. Clearances must be set in strict accordance with the manufacturer's instructions, which must be included with the chainsaw. The repair of the ignition system includes inspections of the spark plugs. This element must be replaced if heavy carbon deposits, a change in the gap or other visible damage are found.
Starter problems may prevent the tool from starting. That is, after the cord is pulled, the chainsaw does not start working.
The reasons for the malfunction are:
broken or cracked pulley;
broken spring;
a rush of the launching cable.
Before repairing the starter, you need to prepare the tools with which to perform the work:
a set of screwdrivers or a special tool that is supplied by the manufacturer in the kit with the tool;
a rope that will be used as a replacement for a broken cord if necessary.
A large amount of black carbon on the spark plug indicates a malfunctioning engine.
Before proceeding directly with the repair of the starter and finding out the causes of malfunctions, it is necessary to remove it from the tool body. To do this, you need to unscrew a few screws holding the side cover to which the starter is attached. This is done with a screwdriver or specialized tool.
After the lid is unscrewed, it is turned over and inspected. Next, unscrew the screw with which the starter is fixed. After that, dismantle the clamp and the spring for a smooth start. Now the pulley is accessible for removal, on which the cord is wound. Once the knot on the rope has been untied, it can be removed from the pulley and replaced with a new one. Provided that the loss of starter performance is associated with a break, this may be sufficient to eliminate the breakdown. However, the rest of the parts that make up this element of the chainsaw should be carefully inspected.
When inspecting the components of the starter, the following malfunctions may be detected:
Most often, damage to the soft-start spring occurs from the end where it is visible when the housing is disassembled.
The pulley could be damaged. There may be cracks or tears or damage to the back. As a result of these problems, the tool cannot perform work.
Damaged soft start spring. In this case, both the spring itself may be mechanically defective, and there may be defects in the place of its attachment. The weakest point of this element is precisely the fastening point and the tip of the spring, which is inserted into it.
If defective or partially damaged starter parts are found, they must be replaced with new ones. In this case, the new elements must correspond to the repaired saw model.
After completing the repair, it is required to properly assemble the starter.
The pulley is installed over the spring. In this case, it is necessary to check how much they adhered to each other. In the course of the repair, it is necessary to wind the pulley. This must be done in such a way that, as it rotates, it pulls the cord into the starter. It is enough to make 3-4 turns to give the required tension.First, the rope is threaded through the hole in the cover of the chainsaw.
You may need to make a few more turns to match the cord holes in the pulley and housing. A new rope is threaded through the technological hole and a loop or knot is made: this will allow it to slip out of the pulley. The rope is taken to the side so that it does not interfere with further work. Next, you need to fix the pulley.
VIDEO
First you need to reinstall the soft start spring. It can be used the old one if no damage is found in it. or a new one if necessary. A starter clamp is installed on top of the spring, which is fixed with a special screw. It reliably fixes the clamp for a long time, preventing it from skewing and swinging. After that, you need to make several turns of the rope and run it inside. The cover with the assembled starter is installed in place. With the help of screws, it is fixed.
After the completion of the repair and assembly, you can start working. Self-repair of a starter does not take much time and does not require complex skills, but it saves time and money if you perform such work in a service center.
VIDEO
It is necessary to approach the repair of a chainsaw responsibly and carry out preventive examinations in a timely manner, monitor the quality of the fuel and oil used. These simple manipulations will increase the duration of the tool in working condition.
A slight change in the design of the starter.
Kickstarter on a moped) This is a pullstarter
Can you please tell me which bolts are used to attach the starter? Thanks in advance.
Dyzasterrr, 2 screws m5x40 (35) mm with a semicircular head and a screw ø4.5 mm long, it seems, 25 mm.
who can tell what is the reason for my husqvarna 327r petrol cutter at idle it seems to be working fine. without load, the trimer head spins up, too, seems to be normal. but as soon as I give the load (I bring it to the grass), the power and rpm drop, right up to the stop of the trimer head! I can even grab her with my hand (without straining) to gasp and she will be motionless! I let go of my hand and gas in the air. spins like fast. What is the problem?
Remove the lower gearbox and look at the condition of the splines on the drive shaft and the gears in the gearbox itself. You also need to unscrew the clutch cup, look at the inner workings in the cup itself, if more than 1mm, for replacement. Well, the clutch itself. Clutch wear is not so bad, as the pads wear out. the spring bursts and breaks the clutch cup and even can break the crankshaft bearings.
Valery Syromyatnikov, that's what I'm saying - when the exhaust is clogged, the engine does not develop its full power, when the spool stops, the engine speed will drop, and when the clutch is slipping, the speed and power are normal, and the spool stops.
not so simple! mesh is the first thing I did!
The scythe worked with its own forces from a friend, but as soon as it saw the grass the drum got up, they thought the clutch, the piston and the exhaust was clogged, and after the scythe was cleaned it began to work normally until now.
Valery Syromyatnikov, if I understood correctly, he stops the spool while the engine is running, but the engine speed does not drop, and this has nothing to do with clogged exhaust, if it were carb or exhaust, then the engine speed would fall.
All Husqvarns are weak starters?
Pav Kood, I don't know. Specifically, this braid has two starters broken (original and analog) one after the other. Although, before the breakdown, it worked fine.
We will repair the brushcutter starter. Often there is a situation, wind up and the rope does not come back. How to fix? First, remove the starter from the trim tab and unscrew the center bolt. There are different mechanisms, wire, butterfly with one or two, four hooks ... There is no difference, the design is the same everywhere. We remove the upper mechanism, do not lose the spring and see what happened.The spring has completely flown off, sometimes it bursts or flies off.
How to repair? First you need to untie or cut off the string and remove the handle, take out the mechanism. Carefully, we remove the face because the spring is to fire. Let's see what happened to our spring. It often happens on a spring, if it is hardened, breaks off the ends. In this case, all ends are intact, the spring flew off.
What to do? Rewind back. It is done simply. We take the internal mechanism, there is a groove for the spring, insert it here. From here she flew. We take it and unbend it a little, only we do not unbend it too much, since the spring is hot. If you squeeze it hard and it may burst, then you won't do anything. Although the spring is inexpensive, you need to look for it, order it. So we insert it here and carefully, holding it, start winding on the inside. It doesn't always work out the first time.
We wound the spring, it stood firmly. Don't worry, sometimes it doesn't even work right away. Train, there is nothing difficult.
Video of the Garden Equipment Repair channel about starter repair.
VIDEO I decided to write a couple of lines about the Husqvarna 128R scythe. I bought this tool 2 years ago. Well, I think the tool is famous, I will mow and mow. He did not load much 18 acres plus around the site.
I worked with it in the mode: I spent the tank - let it cool down for 20 minutes. During the summer 3 -4 times the full mileage on the site and surroundings. Lil oil Husqvarna. I couldn’t get enough of it, as it started up with a half kick. This year I stopped pulling and started badly. I even stopped especially using it, as I assumed that nothing would last forever and, perhaps, she was already tired of me. Maybe try to do it yourself, I thought, and went to get the instrument. I'll start by cleaning the carburetor, I suggested, and I didn't think for a long time, climbed into the bowels of the petrol mowers.
The first thing I did was to remove the candle like the norms, clean it, it is better to replace it, but it was not.
When parsing, you need a screwdriver for replaceable tips, an asterisk tip and a hexagon. Dealt with hemorrhoids. But apparently this is a guarantee of reliability. Everything will work out carefully and slowly.
Replacing the sprocket on the Husqvarna chainsaw
Features of the clutch drum in chainsaws
Replacement algorithm clutch drum
Many tools require regular replacement of consumable parts. This also applies to drinking. That is why the question of how to remove an asterisk from a chainsaw, which is also often called a clutch disc or centrifugal mechanism, is very relevant for home craftsmen. In this regard, it is necessary to consider what is called an asterisk and what it is for.
The clutch drum, called a sprocket, is an integral part of your chainsaw.
The drum located at the base of the clutch of the mechanism is an integral part of the chain drive system.This detail resembles a star in its shape, due to which it got its name. Depending on the type of chainsaw, the part can be professional or household. Since a professional saw is used more often than a household saw, the drive sprocket also needs to be replaced regularly. If we talk about household tools, then everything here depends on the amount of work performed and the load that is on the circuit of the device.
Most often, the sprocket, ring and saw bearing need to be replaced.
In any case, the main reason for replacing a sprocket is chain wear on its teeth. In the event that a monolithic drum is installed in the device, the surface of the chain cuts it almost completely, which requires a complete replacement of the entire part. If chainsaw has a drum with a replaceable crown, here you can only change the crown.
Usually, in order to remove the sprocket from the chainsaw, many people turn to specialized service centers, but if there is a need to save the family budget, you can do this work yourself. This activity does not look complicated, but it requires you to have all the necessary parts and tools. The sprocket replacement process is the same for any device model.
The chainsaw clutch covers the sprocket.
First of all, it should be noted that when buying spare parts for a chainsaw, you need to strictly observe the type of drum or use the advice of a specialist when it comes to modernizing it. As a rule, when changing the drum and saw chain at the same time, the drum bearings are also replaced.
Here you should purchase a special repair kit, which provides for the presence of both a drive sprocket and a bearing. Then you should prepare the tool and parts that will be required to carry out the work:
universal wrench sold with the chainsaw
mechanism piston stopper (plastic or metal in standard versions)
puller of the centrifugal mechanism or clutch (selected depending on the model of the chainsaw).
During the operation, the following actions are performed:
Chainsaw sprocket location diagram.
In order to replace the sprocket on a chainsaw, all work must be done carefully and carefully.
Without special tools, repair work can end in failure: not only the star or centrifugal mechanism can break, but also the saw chain.
The clutch drum of a chainsaw is one of the most common consumables in a chainsaw, because it is he who drives the cutting chain. The drums themselves are divided into two types - with a welded drive sprocket and with a replaceable rim, and in the second case only the replaceable rim wears out, the drum itself changes much less frequently.
VIDEO
Simple chainsaw starter repair do it yourself.
VIDEO
Spring installation and assembly process shown starter chainsaw Husqvarna (Husqvarna ). Spring, coil and starter .
When repairing the clutch of a chainsaw, they adhere to the rule - when two chains are completely worn out, the tire changes, when two tires are worn out, the clutch drum changes. The level of wear of the sprocket can be determined without special devices, it is enough to simply inspect it - the chain, moving at high speeds, eventually wipes the teeth along which it moves. If the wear is strong enough, then replacing the chainsaw clutch drum is inevitable.
The article will focus on the Husqvarna 137 chainsaw. Replacing the clutch drum is a simple procedure and takes place in several stages.
First you need to remove the tire and chain brake cover. For this, the combination wrench that comes with the chainsaw is suitable.
Then remove the air filter cover, unscrew the spark plug, and lock the piston of the Husqvarna 137 chainsaw. For this procedure, it is recommended to use a regular rope, as when using a metal stopper there is a risk of puncturing the piston.
Today, almost every resident of a country house or summer resident has his own chainsaw. You cannot do without it during regular logging, gardening and municipal work. The demand for chainsaws does not fall, but even grows due to the fact that these devices do not require much knowledge and skills to work. The only thing that needs to be done regularly is to carry out technical inspections.
As with any tool, chainsaws require careful personal care. It is necessary to constantly check the oil supply to the chain, chain tension, brake operation, ignition system and other things. Fortunately, almost any malfunction can be solved at home on your own.
Whatever one may say, but breakdowns still occur. But it is important not only to repair the device, but to determine the root cause.
The most common problems:
Oil leaks due to a violation of the integrity of the oil hose or its sealing at the attachment points.
Oil does not flow to the chain due to clogging of the feed channels with dust and chips.
The engine does not start or starts and immediately stalls due to an unregulated / malfunctioning carburetor, clogged sopun, air filter, muffler.
Chain wedges due to defects leading sprocket .
Engine chokes due to carburetor malfunction and high fuel supply.
In the process of regular operation of the chainsaw, the sprocket shown in the photo experiences heavy loads, and therefore it often fails. The sprocket, or otherwise the clutch drum, is an important and integral part of the chainsaw, which transfers the rotational energy from the drive to the chain.
Considering the safety of the drive sprocket and chainsaw chain, there are two ways to operate:
using only one chain
using two or more chains alternately.
In the first case, the chain can be operated until it is completely erased. However, there are a number of inconveniences here. Using only one chain, it is problematic to monitor its condition during intensive work. Hitting nails or other metal parts makes it necessary to adjust the chain, but since it is alone, the work is slowed down.
In the second case, the alternation of the chains allows for uniform wear of both the sprocket and the chains.
In addition to the wear of the sprocket itself, do not forget about its bearing, which operates in idle mode. Therefore, very often they do not pay attention to it and forget to lubricate it.
Usually, when replacing a drive sprocket, they immediately try to replace both the bearing and the chain. This is done due to the change in the chain pitch length as a result of intensive work.
There are many videos on the Internet that clearly demonstrate how to replace the clutch drum (sprocket) of such famous brands as Calm, Husqvarna , Friendship, Ural and others. Finding them is easy.
Each type of chainsaws has its own design features, but the principle of operation is the same for them, so the general idea is reduced to the following actions:
The chain brake cover is removed. In this case, the brake should be pulled towards you so that the brake band does not come into contact with the clutch cup. Next, a couple of nuts holding the cover are loosened. The chain tension is released, allowing the cover to be removed completely.
The tire with the chain is removed, along the way, any dirt is removed.
Now you need to fix the piston in the cylinder. This is done using a special stopper and retainer, but you can use a regular rope. Rotating the clutch, it is necessary to identify the moment when the piston reaches the outlet. The rope is lowered into the spark plug hole and fixes the piston. For convenience, several knots are tied on the rope. The rope will need to be removed after replacement, so it should not be released.
After that, you can start unscrewing the clutch nut. It is important not to forget that there is a left-hand thread, that is, you need to twist it in a clockwise direction. The use of a hammer chisel is unacceptable.This will damage the nut.
The clutch and drum can now be removed leading sprocket .
Replacing the clutch drum.
Assembling all parts together in reverse order.
When replacing a sprocket, you should take into account some of the features of the various saws. For example, in the Stihl chainsaw, there may be a washer between the sprocket and the engine. It is necessary to remember its position, remove and repeat the position during assembly.
Also, some chainsaw oil drives are equipped with a mustache-spring to transfer rotational energy from the sprocket to the pump. If, when assembling the saw, the mustache does not fall into its groove, then the oil will stop getting on the saw chain, which can lead to dire consequences.
To avoid most breakdowns, including the drive sprocket, it is necessary to monitor the technical condition of the saw, regularly inspect, lubricate, etc. You also need to ensure that nails, concrete, stone and other obstacles that lead to early wear of the parts do not meet in the path of the chain.
Video (click to play).
As for replacing the drive sprocket, here you should use information about the design features of the saw (Husqvarna, Shtil, Ural, Druzhba and others), which can be found in the instructions attached to the saw.
