How To Run In A Trimmer

Features of running-in lawn mowers

How To Run In A Trimmer

Lawn mowers, or trimmers, are popular. These low-cost machines can be used in summer cottages, in personal agricultural holdings, farms and utilities. However, the practicality of such devices can only be appreciated by those who can properly start their operation.

How to get started?

The literacy of the first start-up largely determines how the gasoline scythe will show itself during further operation. Errors can reduce the life of the device. The fact is that after starting, the moving mechanisms of the working apparatus will rub against each other. Additionally, the skills of using the trimmer are formed. This is very important in cases when this technique is used for the first time.

Begin by inspecting the gearbox and the quality of its coating with grease. Then prepare the fuel mixture according to the instructions.

Noticing the lack of lubrication or its absence, you need to add a portion of "Litola". The procedure is very simple: unscrew the screw located on the bend of the gear housing. Through the freed channel, add 1-2 ml of lubricant with a technical syringe. During daily work with the trimmer, once in 8-10 hours, you will have to lubricate the boom gear.

But running in lawn mowers is not limited to just oil.

Two-stroke engines require a combustible mixture of two-stroke oil and gasoline. It is prepared in the proportion indicated in the instrument manual or on the lubricant label. Fuel preparation should be done little by little, so that only one mow is enough. You need to place the fuel supply in the following container:

  • Plastic canisters;
  • Glassware;
  • Metal containers.

It is recommended to take oil with a medical syringe. This will allow you to more accurately observe the dosage. Sometimes another question arises. the manufacturer of the tool and the manufacturer of engine oils indicate different proportions of the combustible mixture, so it is difficult to decide which instructions to follow.

After the end of the tests and filling the fuel mixture, the following manipulations should be done:

  • Place the trimmer on a flat surface;
  • Move the lever to the “closed” position;
  • Pump fuel into the carburetor;
  • Start the ignition system;
  • Pull the launching cord with smooth movements, expecting resistance;
  • Immediately after that, do 3 or 4 strong jerks;
  • As soon as the motor starts running, open the choke.


It should be noted that the petrol braid is very easy to operate. It is enough to see how other users use this unit to start using it fully. Performing basic technical functions is intuitive and does not require any difficulties in practice. Correctly running in a gasoline trimmer is also not difficult. over, there is almost no difference between household and professional devices.

The key difference is the type of motor. On professional equipment, it is more powerful and produces more revs. The two-stroke engine is more commonly used in household models. Four-stroke units are more reliable and produce more force, therefore they are suitable for special conditions, difficult and overgrown areas.

How to achieve running-in parts?

The startup technique just described is quite suitable even for Chinese technology. But sometimes the first start fails or the trimmer stalls immediately. In this case, the same manipulations are carried out with the slightly open air duct damper. If even then nothing works, you need to contact a specialist. If the system is working normally, you still should not run in the device right away.

First, the motor should warm up at idle speed for 5 minutes. Important: if the instructions indicate a different time, then it is necessary to follow its instructions. During the warm-up period, it is necessary to adjust the air supply. By setting different positions of the choke lever, they ensure that the cutting part does not move. After waiting for warm-up, open the damper completely and set the power to 50% of the maximum.

In this position, the lever is held for 20 to 30 seconds. Dropping gas to a minimum, allow the streamer to run for 30-40 seconds. Then they set the power to 20%, and wait 10-15 minutes. After that, the engine is turned off and left alone for ¼ hour. When the trimmer cools down, the motor is run in according to the already described scheme, but with the initially open damper.

Long gas retention must be avoided, as poorly run-in parts can be damaged. Long idle operation is also contraindicated. it will lead to overheating. This completes the running-in of the motor, then you need to run in the gearbox. This procedure is carried out in an open area where soft fresh grass grows. It is mowed for 5 to 10 minutes without interruption, periodically stepping to a power of 50-75%.

After this session, stop the mower for 20 or 25 minutes. Usually 3-4 cycles are enough for the trimmer gear to work properly for many years. Most often, they try to run in the device until the first fuel filling ends.

For the features of running in a lawn mower, see the following.

How to Run a Lawn Mower Correctly

Why is a boat motor running in? Acts before running in, where to run in and the process itself.

Finally, the dream came true, you bought a boat or a motor boat and are in a hurry to bring this magic to the water. On a man’s inspiration, connect cables, control rods and hoses. Recycle the gas trimmer into a boat motor. Start the engine and fly out of the water with all the power of all horsepower.

Your hair flutters, splashes fly into your face, beachgoers scatter from your wave. But suddenly the speed drops, you see the distortion of space around the motor from the clinically high temperature and it stalls. Most likely, it will no longer be possible to start it. The engine "grabbed the wedge".

See also  Petrol Trimmer Does Not Develop Turnover

How to break in a two-stroke engine

Starting the trimmer for the first time

When everything has been checked and the prepared fuel mixture is poured into the tank, the moment comes for the first start of the trimmer before running it in. To do this, you must perform the following manipulations:

    Place the lawn mower on a flat, horizontal surface;

If the mower does not start or stalls the first time, slightly open the air duct damper on the carburetor and try again to start.

Running in the Two-Stroke Engine Trimmer EVDIRAL.RU

A new summer season is on its way. It’s time for an excellent owner to check the arsenal of small garden equipment. a motor cultivator, a chainsaw, a lawn mower and a trimmer, if anyone has a shredder (shredder.

A new summer season is on its way. It’s time for an excellent owner to check out the arsenal of small garden equipment. a motor cultivator, a chainsaw, a lawn mower and a trimmer, and if anyone has a shredder (garden waste shredder). They all run on gasoline mixed with engine oil, and their heart is a two-stroke engine. A properly prepared two-stroke fuel mixture is essential to the durability and performance of these units.

The peculiarity in the operation of a two-stroke engine is that oil to lubricate its rubbing parts must be added to gasoline, and not to the lubrication system, as, for example, in a four-stroke automobile engine.

When preparing the fuel mixture for a two-stroke engine, it is important to maintain the correct proportion of gasoline and engine oil, otherwise the tool can quickly become unusable. However, this simple rule is often violated. There are experimenters who do not care about anything. they are trying to make a motor cultivator work on pure gasoline.

Almost all types of air-cooled two-stroke engines designed for small gardening equipment run on gasoline, which has an octane number of 92. It is not required to spend money on 95th gasoline, but using its octane number below 92 is unacceptable. Well, the oil for preparing the fuel mixture must be special. You can buy it in the same place where cultivators are sold. Chainsaws, Trimmers & Shredders

The correct proportions of engine oil and gasoline for mixing the fuel are usually indicated on the label. This is 1. 40 or 1. 50. Let’s translate the proportions into grams to make it clearer. these are, respectively, 25 and 20 g of engine oil per 1 liter of gasoline. For dosing accuracy, it is convenient to use a conventional medical syringe.

Don’t be surprised at the cost of air-cooled two-stroke engine oil. Its price is much more expensive than an automobile one. But it is also spent very economically.

How to prepare a fuel mixture for a two-stroke engine

To do this, first, gasoline is poured into a dry gas-resistant canister, and only after that, oil. If you do the opposite, the oil can spread along the bottom, stick to it, and a high-quality fuel mixture will not work. Therefore, it is not permissible to mix oil with gasoline in the tank of the unit. Only ready-made fuel mixture can be poured into it.

The easiest way is to prepare a fuel mixture based on 1 liter of gasoline. It is correct to do this just before starting work. But the volume of a tank, for example, a petrol trimmer or a Druzhba chainsaw, may be less than a liter. This means that the remainder must be stored somewhere until the next time. An opaque, petrol-resistant canister is suitable for this. It is undesirable to store the fuel mixture for two-stroke engines for more than three months. Its chemical composition, in this case, will change and the unit of small garden equipment on such fuel, although it will work, will announce the dacha neighborhood with its sneeze and growl.

Other related news:

Two-stroke engine oil

Well, speaking about oil for two-stroke engines, I would also like to note that there is no point in using the original branded oil, which the manufacturer of your chainsaw or trimmer insists on. This is all marketing and often branded oil is just some ordinary oil from one of the many manufacturers who have an agreement with the brand of your motorcycle and, accordingly, their label is a big name and the price is three times more expensive.

Well, in conclusion, it is worth noting that the prepared fuel mixture should not be stored for a long time, the fact is that the oil dissolved in gasoline does not retain its properties for a very long time. Additives, etc., can be destroyed. Therefore, it is optimal to store the prepared mixture for no more than a month, and maximum no more than three. As an indirect reference point of suitability, the absence of sediment and stratification of the mixture can be considered.

Home »Articles» Two-stroke engine. starting and running-in

Gasoline for two-stroke engines

Everything is simple here. ordinary motor gasoline is used. In terms of octane number, in general, you should be guided by the instructions in the operating manual. If this moment is not specifically spelled out there, or a choice is provided by octane number, usually between 92 and 95 gasoline, then I recommend using only 95 gasoline! Many people still believe that any gasoline is obtained from 80 by adding additives and, accordingly, 95 is worse, because it contains more of these additives due to the octane number. Friends, this is not the case for a long time! Naturally, additives have always been used and will always be used. But be aware that 80 gasoline is practically not produced by any large refinery, and the difference in the cost of 92 and 95 gasoline for factories is almost the same, so no one now gets 95 gasoline out of 92, these are all old bikes.

Do not hesitate and feel free to buy 95 gasoline instead of 92

But if you refuel your motorized equipment 95 with gasoline (unless the instructions clearly indicate otherwise), then you will almost certainly avoid detonation when the motor is running and, accordingly, extend its life. Naturally, we do not forget that you should buy gasoline only at large network gas stations, where you will almost completely buy high-quality gasoline.

Preparing for the first start of the lawn mower

Before you start the lawn mower for the first time, you need to perform a number of sequential actions:

  • Inspect the gearbox and lubricate it;
  • Prepare the correct fuel mixture.

First start-up and running-in of lawn mowers

Correct first start-up and running-in of a lawn mower are very important steps when starting a new tool. On the one hand, they allow you to preserve the service life of a gasoline engine, laid down by the manufacturer, since at this stage, the grinding of moving units and parts takes place. On the other hand, the first necessary skills of working with a trimmer are acquired when it comes to the first tool in life.

  • Preparing for the first start of the lawn mower
  • Inspection of the lawn mowers gearbox and its lubrication
  • Preparing the correct fuel mixture
  • Starting the trimmer for the first time
  • Let’s start running lawn mowers
See also  How to Lubricate a Shaft in a Huter Trimmer Rod

Inspection of the lawn mowers gearbox and its lubrication

The gearbox must be checked on a regular basis before starting the petrol trimmer. Lack of lubricant or a small amount of it increases the friction of the gear transmission of the reducer, which operates at rather high speeds. The result is overheating and gears. The lawn mower gearbox is out of order. To prevent the occurrence of such a breakdown during operation and helps regular inspection.

If, before starting the gasoline spit, it is detected that there is insufficient or no lubricant in the gearbox, LITOL is put into the body. To do this, unscrew the screw on the bend of the gear housing and add 1-2 ml of "LITOL".

Starting the trimmer for the first time

When everything has been checked and the prepared fuel mixture is poured into the tank, the moment comes for the first start of the trimmer before running it in. To do this, you must perform the following manipulations:

  • Place the lawn mower on a flat, horizontal surface;
  • Move the choke control lever to the closed position;
  • We pump fuel into the carburetor with several strokes of the primer;
  • Turn on the ignition switch;
  • Smoothly pull out the starting cord until you feel resistance;
  • Then make 3. 4 sharp jerks with the cord until the lawn mower starts;
  • After starting, open the air damper.

Preparing the correct fuel mixture

Before starting the running-in of a new engine for lawn mowers, it is also necessary to properly prepare the fuel mixture. As is known for two-stroke engines, it is prepared from a special two-stroke oil and gasoline, taken in certain proportions. You can find out the proportions from the instructions that came with the tool, or on the lubricant label. From the instructions, you will also find out the recommended type of fuel, as well as the recommended type of engine oil.

When going to run in a new lawn mower, many are faced with a problem in preparing the fuel mixture. And the reason for this is the discrepancy in the instructions of the tool manufacturer and in the instructions of the engine oil manufacturer. The former recommend a 1:25 ratio. The latter recommend 1:50. Whom to believe? How to proceed?

According to experts, if manufacturers write a ratio of 1:25 or 1:30 in the instructions for a lawn mower, then most likely this is either a cheap tool with poor cooling, or the manufacturer does not know what kind of oil the consumer will add. But here you need to understand that an excess of lubricant does not in the best way affect the performance of the trimmer. Excess oil does not completely burn out when the engine is running. It cokes, clogs the cylinder and piston.

How to deal with this situation when running in a new tool? The ideal option would be to purchase exactly the oil recommended by the lawn mower manufacturer. In the case of run-in engines, when it is not possible to purchase the recommended oil, it is best to purchase a good Husqvarna two-stroke oil for the gasoline-powered tool of the same name. It is not cheap, but it lasts for a long time. It is necessary to stir it as written in the instructions on the bank.

Let’s start running lawn mowers

After starting, do not rush to immediately run in the trimmer. Allow 5 minutes to warm up the engine at idle speed. While warming up, adjust the air supply with the choke lever so that the spool with line or knife does not rotate. As soon as the tool has warmed up, open the air supply completely by moving the corresponding lever to the "ON" position and squeeze the gas trigger 1/2 and hold for 20. 30 seconds. Then we release the gas, let the trimmer run for 30.40 seconds. In this mode, we continue for 10. 15 minutes. Then we muffle and let it rest for 15. 20 minutes.

Having cooled the lawnmower, we continue to run in the engine according to the previous scheme. Start on hot, the trimmer must be already with an open air damper. Try not to hold the gas for a long time, as the moving parts of the tool only rub against each other. And do not let the engine idle for a long time as it can overheat.

The next stage is running in the gasoline scythe gearbox. To do this, you must select an area with soft young grass. We mow for 5. 10 minutes with podgazovki 1/2. 2/3 of full throttle. After that we take a break for 20. 25 minutes. We repeat the cycle 3. 4 times.

In general, the lawn mowers are run in according to the described algorithm until the fuel mixture in the tank is completely depleted. Then the tool is ready for continuous operation. During operation, monitor the temperature conditions of the gearbox and motor. They shouldn’t overheat.

Trimmer in action

So, the preparatory stage is over, it’s time to get to work. Where do you start? How to use all the capabilities of the device correctly? Of course, you can just get started and learn everything by trial and error, or stick to simple but correct recommendations and get a wonderful effect after the first mowing. There are nuances everywhere, whether it is mowing the lawn, cutting bushes with a disc or mowing grass for hay. You should start with the simplest.

We mow under hay

Hay for the villager is a necessity. it is animal feed in winter, fertilizer and covering material that protects the planting from the cold. Of course, with such versatility of use, the question arises of preparing hay in advance. Mowing under the workpiece differs from the usual aesthetic cleaning of the perimeter in some features.

  • For example, in order to prevent the mowed grass from being chopped into mulch, it is necessary to mow at the root, lowering the bar with the disc as low as possible.
  • It is necessary to outline the swaths in which the mown grass will lie down. this will help to avoid piling up and crowding. In addition, at the end of the work it will be easier to clean it.
  • Another very important point is mowing large weeds. For example, a formed burdock bush, which is not able to cut through every knife. If there is such a large weed on your way, you should cut it in a circle and continue working. When the perimeter work is completed, there will be lonely weeds sticking out on the site, which are easy to remove with your hands, moreover, they will not mix with the grass.
  • The main thing in mowing for hay is to keep the length of the grass, not allowing it to lose its shape. Otherwise, the resulting mulch can only be used as a covering material.
  • The mowing width must be kept strictly fixed, because Remember the average size and length of the workpiece.
See also  How to Put a Fishing Line On an Electric Bosch Trimmer

Some experts recommend using line when mowing under hay, but this is not always correct. Firstly, the grass in such an area is usually tall, moreover, its base is denser and more formed. Using a line will increase engine wear as it has to run at higher rpms. Of course, this will also affect performance. Secondly, the line is simply not provided for such loads. Using this material, you risk not only the line itself, but also the entire mower.

The best option is a disc designed for shrubs. it is designed for increased loads. In addition, tall grass is coarser at the base and will cut more efficiently with the blade than with line designed for soft, silky lawns.

There are optional hay trimmer attachments, but they are all unofficial modifications. In other words, self-made modifications, the use of which is highly discouraged, since K. Instrument behavior under unexplored conditions can be unpredictable. By following simple guidelines, you can quickly gain the necessary experience and harvest large amounts of hay.

Duration of mowing

The electric mower can work without interruption for no more than 20 minutes, after which it will take the same amount of time to rest. The motor needs to be cooled down to prevent the plastic parts from melting.

Gasoline trimmers allow for longer use. On average, you can work up to 40-60 minutes, or until you run out of fuel. In any case, the break should not be less than ten minutes, but better if all twenty. The point here is the engine itself, which is deprived of the liquid cooling system natural for the internal combustion engine. To avoid overheating and increased wear, it is better to give the device the opportunity to cool down, and at the same time to regain its strength or collect already mown grass.

How to cut your lawn to keep it smooth

A lawn means an open flat area that excludes any large landscape irregularities (holes, hills). Of course, snags and stumps should not stick out of the ground. you should attend to their uprooting in advance. It is best to plant the area under the lawn with soft types of grass that lend themselves well to mowing. In this case, you will spend much less effort.

  • Experts recommend dividing the entire area into small squares and mowing along them, moving from one to the other clockwise. In this case, the grass that you cut always remains on the left, and will not interfere with further manipulations with the trimmer.
  • If it is necessary to mow “to the root”, then the angle of contact with the surface must be at least 30 degrees. With this technique of work, the device practically comes into contact with the surface with a cutting knife.
  • It is believed that in order to give the lawn a complete look, it must be mowed with a carriage-type lawn mower. This is partly true, but if you get used to it, you can achieve good results with a hand trimmer. It is also recommended to use the manual grass shears to correct any imperfections after using the trimmer.
  • The lower the line is, the smoother the lawn will be. By leaving the grass taller, the chances are that it will be cut differently in different places. This is due to the fact that the trimmer itself is not fixed on the horizontal plane, which leads to irregularities in the reciprocating motion performed during operation.

Getting ready for operation

As with any other technique, there are rules for working with a trimmer. First, you need to make sure that the main components and assemblies are intact: the screw, the rod, the handle and the motor. If the device has not yet been assembled, then it should be properly assembled according to the instructions.


With an electric trimmer, everything is much easier. After making sure that there is the required amount of lithol in the gearbox, you can start working. No additional measures are required. Unless it is necessary to ensure that the carrier does not run in the path of the mowing in order to avoid possible damage.

When the device itself is ready for use, you should make sure that there is nothing around that could interfere with the operation. If possible, the intended area of ​​mowing should be free of driftwood, glass, stones and other solid objects that could damage the knife or line.

Depending on the work to be done, you need to choose a trimmer attachment: a screw-knife for weeds and hay, a line for lawn grass or a circular saw for shrubs. Mowing should be in the opposite direction from people, if possible, then moving away from buildings and buildings. Do not get too close to the fence and other structures, as the fishing line can catch on sharp edges, and the screw-knife bend if accidentally hitting a hard object.

The preparation of the device itself does not take much time, all modern models of devices are designed to facilitate and simplify their operation, starting to work as soon as possible.