Low quality fuels
The trim tab will NOT rev up with poor fuel quality. It may stall or not start at all. To check the quality of the fuel, you need to inspect the spark plugs. They. The main indicators for problems with the combustion chamber.
In the presence of sediment formed on the candles, plaque, the old fuel is drained and another, high-quality.
It must be remembered that the trimmer or lawn mower must be filled with gasoline of good quality and the subject of the brands of fuel, which the manufacturer indicated in the technical passport of the device.
For your information! The candles should be thoroughly cleaned of plaque, and only then placed again in the combustion chamber of fuel.
Why the Chinese lawn mower is NOT developing momentum?
A further common prerequisite for lowering the speed per trimmer is that the trimmer‘s air or fuel filters are dirty. At the beginning, the problem is that the fuel-air mixture entering the combustion chamber is not sufficiently saturated with oxygen, and therefore not all gasoline is burned. This prevents lawn mowers from developing their highest power.
With the intention of checking whether the air filter is really to blame, it is necessary to remove it (after having unscrewed the cover for this purpose) and turn on the lawn mower. If it works normally, then replace the clogged filter element by plugging in a new one.
If the situation remains unchanged after the actions taken, then it is necessary to mark the fuel filter. The essence of the difficulty is similar to the previous case, only replace it with a lack of oxygen. Not enough gasoline for normal operation of the device. The elimination of this difficulty is also carried out by the usual replacement of the filter element. Air and fuel filters are cheap. It is not difficult to change them without the help of others, and the whole work does NOT take a long period.
It should be noted that without a fuel filter, it is forbidden to operate the trimmer annotations, on the second, the piston unit will come in handy after a short time.
Spark plug lawn mowers become dirty and worn out over the years with constant use. To check this, they are removed and inspected for carbon deposits. The problem, of course, can be removed by 2 methods: with the ability, return the old candle, or simply install the newest one in its place.
At the beginning, they act like this:
- Turn out and wipe the candle from the fuel;
- Dry it without calcination;
- Using a File or small sandpaper, remove carbon deposits from the candle and inspect the gap between the electrodes (expected 1 mm);
- Assemble a trimmer;
- Get a lawn mower.
The lawn mower is NOT picking up speed, the cause of the malfunction and its elimination
If the spark plug does NOT give out a Spark after recovery manipulations at a suitable distance between the boundaries of the electrodes, then it will be necessary to check the quality of the connections of the electronic circuit parts of the device. When the wires are in perfect order, it will come in handy to precisely install the latest part.
Change of candles. This is an easy process, which is inexpensive, if you can return the old ones, it is generally free of charge. For work, only a candle wrench and a File is useful.
If there is constant Frisky pollution and wear of the candles, then it is necessary to find the problem of THESE abnormal phenomena deeper.
If our client remains in order with fuel, filters and spark plugs, then the next source is possibly an internal combustion engine. He will have subsequent mechanical failures:
- Carburetor problems;
- Difficulty with the motor drive mechanism.
There is a small cable in the carburetor section. It can save and lead to the dilemma in question. After that, working on the carburetor, you should first check the condition of the cable, and if necessary, tighten it (but not to the maximum). The main thing is not to overdo it with a stretch, so that under load it does not crack.
After that, it is necessary to check the operational options of the carburetor, which are manufactured to correspond to the characteristics given in the annotation. If they are installed correctly, and there is a suitable effect, then the part should be disassembled, washed, cleaned, blown out with a pump, which remains to make our client walk and assemble it back. The carburetor itself is without mechanical damage.
If it is impossible to independently restore the performance of the carburetor, it is better to replace it with the latest part or resort to the services of experts.
If the passage, when adjusting or changing the carburetor does not give the desired result, you need to clean the drive mechanism and lubricate the cable located inside it with oil.
Engine problems can be removed on their own if you have the required abilities, alas, it is better to use the services of a service center for this purpose. His specialists will carry out a comprehensive diagnosis of the trimmer and establish the exact cause of the drop in rpm.
Disruption of normal fuel circulation to the trimmer also results in the lawn mower NOT gaining operational speed. You will like it better for the following main reasons:
- Air leaks caused by cracks in the hoses;
- Clogging of the gasoline pump, which came out due to the introduction of poor fuel or due to the formation of sediment The other day the tank and its entry into the system;
- Muffler contamination in other words, catalyst.
Without the help of others, to eliminate the problems considered, the following must be done:
- Go through the fuel pump, removing dirt;
- Change of tubes and hoses through which the fuel circulates;
- Cleans the muffler and the mesh into it;
- Will supply a new catalyst, which will be expensive due to the precious metals in the personal computer.
All work to eliminate problems in the fuel circulation system is done without the help of others. However, it should be done carefully in order to hold the parts, or after assembling the braid there are NO “extra”.
When operating a trimmer, where an electronic engine is installed, difficulties also occur with a set of revolutions. However, they are caused by completely different eyes problems, in comparison with fuel streamers. The electric motor does NOT develop the required rotational speed in this variant:
- If the voltage acting in the supply network is lower than the rated value for the electric motor by quite 10%;
- In case of problems in the softstarter (if this unit is installed)
- When there are obstacles with the brush assembly;
Electric scythe brush unit
To eliminate the problem with the voltage, you need to check its value in the outlet with a multimeter or tester, which is where the power of the electric cable is required. If it is less than a small permissible value, then to increase it it will be useful to turn off electrical appliances or install a stabilizer for our client.
An indisputable condition necessary for the normal operation of the trimmer is the introduction of an extension cord with a cross-section of conductors suitable for the power of the scythe motor.
To repair the soft start unit, it is useful to have proper knowledge of electronics, therefore it is better to contact a service center. There it will be determined by its maintainability or the need to change. Without the help of others, there is an option to check the button, as it is also called, to find the block diagram and try to figure it out here.
The brushes will of course wear out, and therefore contact will disappear, which leads to stoppages of the electric motor. It is not difficult to change the brushes. The process is determined by the lawn mower model used. Along the way, it will also be useful to clean our client’s contact surfaces.
For which the design of burning the windings is intended, if you continue to mow the grass or bush, the electric motor will quickly burn out. This will be accompanied by the appearance of a burning aroma, up to the melting of SEPARATE parts. It will come in handy to change the electric motor.
Wedging of the rotating parts occurs for various reasons. To identify and eliminate them, it will be useful to sort out the drive unit. There are models in which the number of revolutions is automatically regulated by the suspension from the load, increasing with its increase. When idling, the rotation speed drops.
Little tricks
- If you fail to tighten / loosen the adjusting screws normally, it may be that the spring is too thick and stiff. Then you can choose instead of her a more suitable.
- If your unit requires NOT pure gasoline, but its mixture with engine oil, strictly observe the proportions specified in the operating instructions. There is one little thing: the recommended ratio. 1:25 (for all brands of oil) or 1:50 (for “native” oils). Try the first ratio first. If, with such a recipe, oil drips appear on the motor, and Strong carbon deposits form on the candle, Reduce the fate of the oil by half. This usually helps to fade traces and reduce the amount of carbon deposits.
- To clean the spark plug electrodes from combustion products, you can use fine-grained “sandpaper”. Wipe them with a dry cloth first and then gently sand them with sandpaper. If the space between the body of the device and the insulator is also clogged, a regular unbent paper clip can help clean it. To do this, briefly soak the candle in diesel fuel, and then scrape off the dirt. If the blockage is small, one procedure is sufficient. Sometimes it is necessary to repeat it several times in case of heavy dirt. After complete cleaning, the candle must be wiped dry from the remaining diesel fuel, and then it can be used as directed.
- Please note that foreign-made lawn mowers (gasoline, electric or battery) require a little more maintenance than domestic ones. In particular, many insist on entrusting the adjustment of the carburetor of a two-stroke engine to professionals, especially if your purchase has not expired the warranty period.
- And finally, one more tip: follow all the manufacturer’s recommendations for the operation and maintenance of the device. So you extend its smooth functioning.
You will learn more about what to do if the petrol trimmer is NOT picking up speed.
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The gasoline trimmer is NOT gaining momentum: the reasons and features of repair
To cut grass on a small lawn, it is not necessary to purchase an expensive and bulky lawn mower; it can be easily replaced by a gasoline / electric trimmer. The device of THESE machines is quite simple, they are easy to use and unpretentious in maintenance. But sometimes problems do occur. About one of them. When the trimmer is NOT at maximum RPM. Speech and will go in this article.
Spark plug problems
When the Trimmer is used frequently, monitor the condition of the spark plugs. This part is subject to wear and tear, so they need to be regularly inspected for carbon deposits.
There are two ways to solve the problem: clean an old candle from burning or purchase a new one.
In the first case, you need to Unscrew and scrub with sandpaper, dry. The distance between the electrodes should be 1 mm. The trimmer is assembled and started.
In the absence of a spark between the electrodes, it is worth inspecting the quality of the connections of all circuit elements. If everything is fine in this case, then 100% need to change the candles.
Replacing them is easy and inexpensive. From the tools will need a key, File.
Important! With the frequent appearance of carbon deposits on the combustion candles, it is worth looking for the reason a little deeper.
Candles should be thoroughly cleaned of plaque
Features of the trimmer
All trimmers are classified by type of power: gasoline or electricity (mains or battery). It should be noted that gasoline mowers are superior in many respects to their electric and battery counterparts. While they all perform similar functions, the differences in performance, agility and efficiency are very noticeable. However, the general principle of operation of all types of hand mowers is almost the same. Devices Equipped with motors (two- or four-stroke internal combustion engines or an electric motor) that drive the cutting unit (a spool with a line or a metal disc). All elements are attached to a straight or curved bar, including a trimmer handle, on which the main buttons are located.
Since the problem of low revs is more common with petrol trim options, they will receive more attention. So, the lawn mower is very comfortable to work and unpretentious in maintenance. over, most of its malfunctions are caused by the user’s ignorance of elementary things, which are written in the instructions. Therefore, before starting to operate the unit, you must carefully study the manufacturer’s manual. In particular, in order to start the engine, the following steps must be taken:
- Turn on the ignition button;
- Press the silicone button several times to pump gasoline;
- Close the air damper;
- Set the throttle lever to the high rpm position;
- First, make a slight jerk with the starter handle to feel the resistance of the engine, then sharply sod.
If the lawn mower starts up but stalls, set the choke to the middle position and try again. When the engine starts, you need to reduce the gas and open the air damper, since the trimmer functions only on suction.
Diagnostics and elimination of problems of electric motors
Trimmer malfunctions can be as follows:
- Violation of insulation or cable breakage;
- Malfunctions in the area of the cutting tool;
- Damaged socket or plug.
To cope with this breakdown, it is not necessary to disassemble the entire apparatus.
In case of serious engine problems, you will have to disassemble it. To do this, unscrew a few screws. Having gained access to the parts of the motor, you need to carry out the following actions:
- Check the degree of wear of the brushes. Unsuitable parts will need to be replaced with new ones;
- Ring the motor winding. The resistance must be high;
- Check stator and rotor. To test the rotor winding with a multimeter, measure the resistance: large deviations from the norm indicate a malfunction, the absence of resistance on the stator winding also indicates breakdowns (in a similar way, the stator case is diagnosed).
Low rp problems are common with cheap trimmers. However, with improper maintenance, this also affects hand mowers such as the Huter, Patriot 3055, Echo.
Candle
In case of problems with the candle, it is sometimes enough to dry it or clean it with sandpaper and put it back in place, setting the gap correctly. It should be 1 mm. If the spark plug is heavily soaked, it is better to replace it with a new one. With optimal trimmer operation, the candles do not fail so often.
Little tricks
- If you fail to tighten / loosen the adjusting screws normally, it may be that the spring is too thick and stiff. Then you can choose instead of her a more suitable.
- If your unit requires NOT pure gasoline, but its mixture with engine oil, strictly observe the proportions specified in the operating instructions. There is one little thing: the recommended ratio. 1:25 (for all brands of oil) or 1:50 (for “native” oils). Try the first ratio first. If, with such a recipe, oil drips appear on the motor, and Strong carbon deposits form on the candle, Reduce the fate of the oil by half. This usually helps to fade traces and reduce the amount of carbon deposits.
- To clean the spark plug electrodes from combustion products, you can use fine-grained “sandpaper”. Wipe them with a dry cloth first and then gently sand them with sandpaper. If the space between the body of the device and the insulator is also clogged, a regular unbent paper clip can help clean it. To do this, briefly soak the candle in diesel fuel, and then scrape off the dirt. If the blockage is small, one procedure is sufficient. Sometimes it is necessary to repeat it several times in case of heavy dirt. After complete cleaning, the candle must be wiped dry from the remaining diesel fuel, and then it can be used as directed.
- Please note that foreign-made lawn mowers (gasoline, electric or battery) require a little more maintenance than domestic ones. In particular, many insist on entrusting the adjustment of the carburetor of a two-stroke engine to professionals, especially if your purchase has not expired the warranty period.
- And finally, one more tip: follow all the manufacturer’s recommendations for the operation and maintenance of the device. So you extend its smooth functioning.
You will learn more about what to do if the petrol trimmer is NOT picking up speed.
The modern market offers a wide range of electric and fuel-powered trimmers from different manufacturers. Equipment may malfunction. For example, insufficient RPM. Do NOT panic about this, since the problem of insufficient speed in lawn mowers, trimmers is quite common. There are several reasons for this.
Spark plug problems
When the Trimmer is used frequently, monitor the condition of the spark plugs. This part is subject to wear and tear, so they need to be regularly inspected for carbon deposits.
There are two ways to solve the problem: clean an old candle from burning or purchase a new one.
In the first case, you need to Unscrew and scrub with sandpaper, dry. The distance between the electrodes should be 1 mm. The trimmer is assembled and started.
In the absence of a spark between the electrodes, it is worth inspecting the quality of the connections of all circuit elements. If everything is fine in this case, then 100% need to change the candles.
Replacing them is easy and inexpensive. From the tools will need a key, File.
Important! With the frequent appearance of carbon deposits on the combustion candles, it is worth looking for the reason a little deeper.
Candles should be thoroughly cleaned of plaque
Filters
A clogged air filter is another reason for the unreliable operation of the device. To check the involvement of this element in the malfunction, you need to start the lawn mower without it. A dirty filter can be washed in gasoline, dried or replaced with a new one.
A clogged fuel filter DOES NOT let fuel into the cylinder, and the engine stalls at full throttle due to an elementary shortage of gasoline. This element is located inside the tank on the intake hoses. To eliminate the problem, instead of the old filter, put a new one on the hose or thoroughly rinse the one that was removed.