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 Starter for petrol cutters: device, assembly, repair
Disassembling-assembling the starter is not a harsh problem, it just requires insignificant ability in calling with a screwdriver and, most importantly, compliance with certain safety measures:
1. Loosen the screw securing the pulley to the starter cover. Remove the two antennae and the spring, and then very carefully, turning your head to the other side, dismantle the pulley. How to independently assemble the handle on the echo srm 22 ges trimmer, sometimes the echo srm 22 ges trimmer control handle fails and there is a need for hands. The specificity of this operation is such that even with careful removal of the roller, the spring instantly jumps out of the coil, turning into a sharp metal strip that can injure the repairer. How to independently assemble a handle on a carver trimmer, the trimmer handle broke. Analyze the nature of the breakdown. With the complete destruction of the spring, the only correct solution would be to replace it. A failed part can be easily purchased in online stores that sell starters and spare parts. If the spring is simply out of engagement, it is necessary to insert it into place, having previously bend the tendril. This must be done carefully, since it is hardened and, if not handled carefully, can burst at any time.
2. With the spring back in the groove, take your time and hold it with your finger and begin to twist. At the same time, pay great attention to safety, as a broken metal strip can cause injury.
3. After the spring is wound, continue assembling the starter. Carefully turn the coil over and insert it so that the bend of the spring clearly fits into a special groove in the body.
The first is to use an additional metal strip, the second is to drill the coil (photo) and fasten the edge of the spring with wire (video).
Modern technologies and equipment make it possible to produce the best and optimal technical solutions that become effective assistants in the arrangement of a summer cottage or a personal plot. The green lawn and other plantings can grow rapidly, a petrol cutter is used to tidy up the local area and mow the lawns, which is also called a brushcutter or trimmer, a petrol mower.
Traditional braids are inconvenient and unsafe to use, require a significant investment of time and effort, which will help save gas mowers, combining functionality and practicality in their design. In the photo of the petrol brush, you can see various high-tech devices, which are inherent in a set of operational characteristics, including such parameters as increased productivity and a long service life.
A convenient and reliable trimmer is a technical device consisting of individual mechanisms, parts and elements that can wear out, become unusable and damaged during intensive use.
Even with regular technical inspection, maintenance procedures and careful storage, such devices and their individual parts require repair and even replacement, all repair procedures can be performed independently.
Brief content of the article:
The easiest way is to give the petrol cutter for repairs, having allocated a certain amount of funds from the family budget, prompt and high-quality repair with your own hands is no less simple and convenient if you want to understand the design of the petrol cutter and fix all the problems.
The mass and piece production of trimmers is based on the use of generally accepted technology, a typical design scheme consists of certain elements and parts, it is important to know them when carrying out independent repair work:
top part. The basis of the entire structure, where all important elements are collected, such as a starter, a carburetor and a petrol cutter engine;
middle part. A hollow rod, inside it is a cable that connects the motor and the gearbox, which drives the cutting line. In this part there are fasteners for distributing the weight of the entire structure and a belt for fixing the trimmer on the belt of a person using the trimmer for its intended purpose;
Bottom part. It houses the gearbox and cutting elements, which are hidden under a practical cover to protect the user. The casing provides an increased level of safety, preventing large fractions of debris, stones and glass from entering a person while working with a petrol cutter.
Knowing exactly the internal structure and the principle of operation of the trimmer, you can independently carry out repair measures for the structure or replace individual components that have become unusable, using the repair instructions.
The most common and common failures of the unit that need to be corrected on their own include the following problems:
engine malfunction, due to which the brushcutter does not start and does not work;
increased vibration of the brushcutter bar, which complicates its intended use;
increased overheating of the gearbox, its accelerated heating during operation;
slow and weak functioning of the cutting line at insufficient speed;
clogging of the starter grille, causing overheating of the engine and its refusal to work;
fast and frequent clogging of the carburetor due to the use of low-quality fuel;
clogging of the air filter due to non-observance of the measures for the care of the device.
All these problems can lead to the fact that the device will lose its working capacity. Before ordering the necessary spare parts for the mowing, a visual inspection and diagnostics of the device should be carried out.
Particular attention should be paid to individual spare parts and units of the device, to check them you do not have to contact a professional master, a set of diagnostic measures will help you to identify the consequence of a loss of performance with your own hands.
If the trimmer motor does not start or stalls immediately after starting, when the gearbox overheats or during the operation of the device, extraneous noises are heard and vibration is clearly felt, it is important to visually inspect and identify a non-working unit.
To optimize the preparatory measures before repairs, you should carry out a simple diagnosis and check in stages:
the presence of fuel in the tank and lubrication in the main units;
serviceability of the spark plug and its performance;
the cleanliness of the fuel and air filter of the brushcutter;
clogging of the outlet channel and breather of the device;
the quality of the fuels and lubricants used.
To determine the functional efficiency of the petrol-cutter's ignition, it is necessary to determine whether the spark plug is working by testing the appearance of a spark when it comes into contact with the body of the functional device.
The spark plug itself can be replaced with a new one, having previously dried the candle channel, if necessary, the old element is also dried, cleaned with special devices and returned to its place.
In the process of inspecting the carburetor, it is worth paying attention to the possible leakage of the fuel used; to identify problems with the carburetor, the following measures must be taken:
purging the fuel hose to eliminate possible blockage of the element;
checking and replacing the gasket between the engine and the carburetor;
determination of tightness and maintenance of constant pressure in the unit.
If necessary, you can personally disassemble and thoroughly clean the unit using gasoline, the jet and channels are cleaned using compressed air.
The gearbox transmits torque from the motor shaft to the cutting tool, its gears during operation must be absolutely clean and always lubricated with special grease.
Carrying out a technical inspection on your own once a season will allow you to get rid of the need to repair the gearbox or replace it, with the purchase of an expensive new unit.
The starter is necessary to bring the trimmer into working condition, its diagnostics consists in checking the tension of the starter cord connected to the teeth of the starter coil, which are often destroyed during an abrupt start.
An inoperative starter in a petrol cutter cannot be repaired; it must be replaced with a working unit as part of a mandatory technical inspection or a set of repair measures.
Cutting elements require special attention and care, which must always be cleaned of dirt and cut grass after use. Regular inspection and thorough preparation of the device for operation will help to avoid costly and time-consuming repairs, and always be confident in the performance of the petrol brush.
The starter is one of the main components of the brushcutter, which greatly facilitates starting the engine of the tool. Its breakdown can happen at the most inopportune time, which will certainly entail significant changes in the daily plans of the owner of the site. There are two ways to solve the problem: repair the trimmer starter with your own hands, or replace the entire assembly. The easiest way to troubleshoot a starting system is to completely replace it, but from a financial point of view, buying a new starter can seem far-fetched. For self-repair of breakdowns, it is enough to prepare a screwdriver with an appropriate tip and familiarize yourself with the following recommendations.
Petrol cutter starter with details
Like any garden or construction gasoline tool, the trimmer starter consists of a plastic case, into which a pulley with a pre-wound cord (shmorgalka) is installed. For the purpose of automatic twisting of the rope after a jerk by the starter, a tape spring made of alloy steel is fixed on the back of the pulley. A ratchet is mounted on the front of the pulley, by means of which the starter engages with the drive shaft of the trimmer motor.Depending on the manufacturer and the design of the brushcutter, the ratchet pulley can be either one piece or assembled from two separate parts.
The principle of operation of the trimmer starter practically does not differ, regardless of the model of the unit.
The main components of the trimmer starter
When jerking with the starter, the protrusions on the pulley come into engagement with the pawls, which, when the internal combustion engine is successfully started, diverge in different directions under the influence of centrifugal forces. There are also models where the ratchet is spring-loaded from the side of the housing and when the pulley rotates backwards, the teeth of the engagement are removed from the motor shaft. Of course, with frequent and prolonged use of the trimmer, no one is safe from a break in the drive cord or wear of the tape spring. Therefore, in this case, you will need to repair the trimmer starter, which you can do yourself.
Currently, there are two main faults in the petrol trimmer starter:
Breakage of the drive cord (shmorgalki); The belt spring breaks or is out of engagement with the pulley. Trimmer band spring
In practice, there are cases when, for some reason, damage to the starter housing occurs and the torn cord is wound around the engine shaft, which will certainly lead to spring breakage and cracks on the housing. In this situation, local repair of the petrol cutter starter will be impossible and a complete replacement of the engine start unit will be required. In other cases, troubleshooting will be limited to replacing the spring or cord.
First of all, the repair process begins with removing the entire starter from the trimmer. This process is inherently straightforward and requires only the removal of a few screws with a suitable locksmith tool. It should be noted that when dismantling the petrol cutter start mechanism, it is necessary to observe safety precautions, since the ribbon spring in the compressed state has sufficient energy to injure a person.
This stage allows the wizard to establish the reasons for the failure of the launch unit, as well as to troubleshoot individual parts. Disassembly work should be carried out in the following sequence:
Unscrew the screws securing the pulley to the starter housing;
Removing the pulley from the brushcutter body
Spring removed from the starter coil
Many experts note that it is quite difficult to install the spring the first time, therefore, when repairing a trimmer starter, the owner will need not only basic locksmith skills, but also patience.
VIDEO
Although the process of assembling the petrol cutter launch unit is carried out in the reverse order of disassembly, there are several nuances that should be paid special attention to:
The coil with the spring installed must be turned over and mounted in the groove of the starter body so that all the protrusions are in their original place.
Installing the trimmer coil in the starter housing
White cup with mustache trimmer coil
When assembling the starter, pay attention to the compression spring, which must be bounded on both sides by steel springs. If this is not done, then after the first season it will wipe the grooves in the pulley housing.
Trimmer Starter Spring Tension
After installing the starter, it is necessary to dismantle the rope handle and insert it into the reel groove. Further, against the direction of movement of the pulley when starting, it is necessary to make a certain number of revolutions specified in the instruction manual for the petrol trimmer. It is worth noting that the tension and further performance of the unit will depend on how to put the spring on the trimmer and what tension is made. At the final stage, we thread a rope into a special hole and fix it with a handle.
Installing the starter rope in the trimmer
At the very beginning, you need to remove the broken cord, choose a suitable length depending on the trimmer model.We pass it through a special hole in the pulley and at the other end we tie a knot in order to prevent the rope from jumping out of the trimmer start mechanism. Next, we erect the ribbon spring to the required number of revolutions and mount the handle.
Disassembling-assembling the starter is not a serious problem, it just requires a little skill in handling a screwdriver and, most importantly, compliance with some safety measures:
VIDEO
It should be noted that today there are two main types of starter for petrol cutters you can buy in any store: electric and manual. Hand starters are more popular today. In addition, according to the principle of operation, starters are divided into direct-acting, combined and inertial starters.
As for the terms of use of starters, nothing can be said unambiguously. Here, of course, one should proceed from how and with what force you will handle the apparatus. This way you can see that the starter plays an extremely important role in the operation of the entire trimmer.
However, you need to be prepared for the fact that the starter for petrol cutters, like any other part, is prone to malfunctions, but the frequency with which you will repair or replace the starter depends solely on your treatment.
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 brought 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 choke and pull 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".
Video (click to play).
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.
