Top 6 mistakes when running in a lawn trimmer (brushcutter)

Before starting a gas grass trimmer, you should regularly check the gearbox. Lack of oil or a small amount of it increases the friction of the gearbox operating at rather high speeds. This leads to overheating and transmission. The gearbox of the lawnmower fails. Prevents such damage during operation and helps regular inspection.

If insufficient or no grease is found in the gearbox before starting the gas braid, “LITOL” is inserted into the housing. To do this, unscrew the screw on the bend of the gear housing and syringe “LITOL” in 1-2 ml.

Getting ready for the start

So let’s start with getting ready for work. How to get the mower ready for use?

First of all, reassemble it if it’s been disassembled. Secure the detachable mower bar in the latches. Carefully check that the cutting attachment is securely in place, especially if it is a blade or saw blade. Gasoline grass trimmers, as a rule, are extremely powerful, and the rotation speed of the cutting equipment in them is fantastic. Therefore, badly fixed blade, firstly, can injure the worker, and, secondly, causes additional vibration in the tool, which can lead to its breakage.

Gasoline models are most often equipped with a two-stroke engine, so they require the preparation of the fuel mixture. What is its purpose? Since in such motors there is no crankcase and a separate system for oil lubrication, this role is performed directly by the combustible mixture.

It is prepared in certain proportions and for one filling. Immediately dilute several liters, with “reserve”, you should not, as the composition should always be fresh.

Hand-held petrol mowers: weight and type of handle

Sometimes the buyer is mistaken in that there is no need to consider the weight and type of handle when choosing a unit. This is a misconception. After all, the weight will determine the operator’s uninterrupted operating time. The heavier the machine, the less time you will work.

As a rule, powerful grass trimmers can weigh from six to ten pounds. If you decided to choose this particular unit, then you need to carefully examine its equipment. These models always have shoulder straps, which greatly facilitate the work.

When reviewing the models, pay attention to the type of handle. After all, working with the trimmer, you must hold it firmly and confidently. Most manual gasoline mowers have a T-shaped handle, it is convenient and practical.

The result of a proper running-in of the gasoline grass trimmer

After you have done a running-in of the lawnmower

according to the instructions, the result will be a ready-to-use tool. Of course, it is best not only to read the stages, but also to see the running-in on the video from the experts. The result of correct actions will be obtained:

  • trouble-free operation of the power tool for a long time;
  • quality start of the device and stability of power supply;
  • absence of unforeseen grass trimmer repairs after a quality run-in;
  • no overheating.

In this regard, the initial processing of the Chinese grass mower is an integral part of the quality work of the device, which can work flawlessly, using or cutting lines of different diameters when processing areas, available for purchase at the special store “Grass Mower”.

Introduction to Running-in Information for Gasoline Trimmers. (For detailed information on running in on your model, please refer to the manufacturer’s instruction manual.)

Before you start using any imported gasoline grass trimmer, you need to run it in first. This is necessary to extend the life of the gasoline engine. During the run-in phase, the moving parts must first run in contact with each other, i.e.к. there is increased frictional resistance in the drive train. On the other hand, during the running-in period you can acquire the necessary skills for working with a gasoline trimmer. This is especially important if you’re working with a petrol trimmer for the first time.

To work with a gasoline trimmer when preparing the fuel mixture, use only brand-name oils. The oil that can be used to prepare the fuel mixture is specified in the instruction manual. Strictly follow the correct proportions of oil and gasoline. The octane number of used gasoline must be at least 90 (unless otherwise specified in the instruction manual), not less than 95 in our country, otherwise the service life of chain saw or grass trimmer is sharply reduced, the operation of the saw/grass trimmer is accompanied by overheating, unstable operation.

Carefully read the manual, those sections concerning hot and cold starts. The engine starting principle is the same for all gasoline-powered trimmers. Only the position of the saw controls (STOP button, throttle lever) may be different.

Run-in should be carried out within 3 to 4 hours (cumulative operating time). Do not run the chain saw/trimmer idle for a long time during the running-in period. No more than 15-20 minutes idling with occasional starting of the engine every 20-30 seconds. Then continue the running-in period with light load. This includes mowing “soft grass” with minimal effort on the part of the operator.

gasoline, grass, trimmer, starting

We hope that your purchased power tool will serve you for many years and you will enjoy working with it.

Similar in “two words” (Use the manufacturer’s instruction manual to run-in your model)

Read and understand the operating manual. (Read carefully) 1. Petrol 1:25. In 2.5 liters of AI-95 (highly recommended) add 100gr. 2-stroke oil, preferably Husqvarna or STIHL (red). A mixer, preferably made of special plastic or aluminum.к. In conventional canisters there is rust, which over time can accumulate in the carburetor and lead to failure (clogging). 2. Check and, if necessary, add special lubricant to the lower gearbox. 3. Start the engine (follow the manual). Give to work at idle for 5 minutes, then at intervals of 20-30 seconds ngazovka on 1/2. 2/3 of gas (at half gas). When starting the run-in period, do not accelerate suddenly and for a long time! Continue for 10-15 minutes. Warning! In the instruction manual “rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr” recommend putting the gasoline tool air damper in the operating mode, “press” the gas button and on start up the accelerator 4. Take a break for 15-20 minutes. 5. Start the machine (as per instructions or as described in the Owner’s Manual of the machine).above). Let it idle for 5 minutes, then at intervals of 20-30 seconds accelerate to 1/2. 2/3 gas (half throttle). At the beginning of the running-in period do not accelerate sharply and for a long time! Continue for 10-15 minutes. 6. Take a break for 15-20 minutes. 7. Running-in of the lower gear unit. Scythe “soft grass” 5 minutes at intervals of 5-10 minutes. Repeat for 3-4 times. 8. The gasoline grass trimmer is ready for operation. 9. Check and add grease to the lower gearbox. Add grease periodically (every 1 to 3 hours). 9. Running-in takes up to 3-4 hours.

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We recommend not overheating the engine and the lower gear, the mowing time should not exceed 10-15 minutes with an interval of 15-20 minutes. The most optimal mode 5 minutes of work, 3minutes of rest, 5 minutes of work, 10-15 minutes of rest. With this operation, even inexpensive grass trimmers and chain saws last more than 4-5 years.

Series: To the handyman Publisher: Samizdat (made in RB) Year of publication: 2012 Pages: 1 Binding: no Format: A4

STIHL FS 55 petrol grass trimmer / ride-on lawnmower lightweight, mobile grass trimmer with plenty of power. Indispensable for mowing meadow vegetation and decorative grass, when mowing undulating or rugged terrain. The unit enhances soft grass and clears dense bush or overgrown vegetation with the same productivity. The small boom size enables mowing in hard-to-reach places: along house walls, around bushes, posts, benches.

STIHL FS 55 gasoline grass trimmer/ lawnmower. Benefits of the model

  • Ergonomic two-handle handle in silver color. Fits snugly in the hand, does not slip while working.
  • The motor control mechanism is integrated into the handle. To increase operator safety.
  • Replaceable cutting equipment extends the functionality of the tool. The STIHL FS 55 petrol/diesel trimmer comes with a disc for tough and overgrown grass and a disc for trimming bushes.
  • Eye protection goggles. They give direct and lateral protection, are ventilated on the inside and do not create a greenhouse effect on the glass, providing a good panoramic view.
  • STIHL shoulder strap. Comfortable use of the trimmer increases productivity, reduces energy loss, distributes the load evenly and doesn’t put pressure on your shoulder. Frees your hands for productive mowing, secures the scythe during operation.

How to test drive a Patriot grass trimmer

1st starting and running-in of lawnmower

Proper 1st start-up and running-in of the lawnmower are very important steps before operating a new tool. On the one hand they allow you to save motoresursy internal combustion engine, pledged by the manufacturer, because at this step is lapping moving parts and components. On the other hand. are acquired the first necessary abilities to work with a trimmer, if we are talking about the first tool in life.

Preparing for the first start of the lawnmower

Before you perform the 1st start lawn mower needs to produce a series of actions in turn:

Advised to do them not only when buying a new trimmer for grass, but in preparing an old tool for the new season after storage.

Inspection and lubrication of lawnmower gears

Checking the gearbox before starting a gasoline grass trimmer should create a permanent basis. Lack of lubricant or its small amount increases the friction of the gear reducer, working at a fairly high speed. Overheating and overheating of the gears occur as a result. Gearbox of brushcutter fails. To prevent the occurrence of such a breakdown in the process of use and helps to continually inspect.

In the case of detection, before starting the gasoline grass trimmer, the lack of lubricant in the gearbox or its absence in the housing, “LITOL” is laid. To do this you need to unscrew the screw on the bend of the gear housing and fill it with 1-2 ml of LITOL.

READ STIHL Fs 130 petrol grass trimmer Video

After every 8-10 hours of work with the petrol grass trimmer add some oil to the gearbox.

Preparing the right fuel mixture

Before you start running in a new lawnmower motor, you also need to correctly prepare the fuel mixture. As it is clear for two-stroke engines it is prepared from special two-stroke oil and gasoline, taken in certain ratios. You can check the proportions from the instruction manual supplied with the tool or on the lubricant label. From the annotation you will also learn the recommended type of fuel as well as the recommended type of engine oil.

Prepare fuel in small quantities, just enough for one cut of grass. Use special plastic canisters for fuel or separate glass or metal pots. The best way to get the oil is to use a medical syringe.

Having gathered to test a new lawnmower, many are faced with the problem of preparing the fuel mixture. This is caused by a discrepancy between the tool manufacturer’s instructions and the engine oil manufacturer’s instructions. First recommends 1:25 ratio. The others recommend 1:50. Who to trust? What to do?

Running in the Chinese lawnmower and operating issues. Practice

and maintain the grass trimmer. shrubbery cutter or grass trimmer. Do not always buy a grass trimmer

How to buy a grass trimmer, how to BURN and how to SERVICE.

In this video we will point out the most common mistake when running-in chainsaws and chainsaws. Spare parts

According to experts, if the manufacturers write the proportion 1:25 or 1:30 in the instructions to the brushcutter, then most likely it is either a cheap tool with poor cooling, or the manufacturer does not know what oil, will add the consumer. But here it should be understood that too much lubricant is not the best way to affect the performance of the grass trimmer. Excess oil doesn’t burn out completely when the engine is running. Buy a grass trimmer, how to run-in and how to lawn mower Patriot 545 trimmer for grass trimmer patriot pt 555. It cokes, clogs the cylinder and piston.

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READ Benzotrimmer Stops Idling

What to do in this situation when running in a new tool? The ideal is to buy the exact oil that the mower manufacturer recommends. In the case of running-in engines, when there is no possibility to buy the recommended oil, it is better to buy a good Husqvarna two-stroke oil for the gasoline-powered tools of the same name. It is not cheap, but it lasts for a long time. You have to mix it in the same way as it is written in the instruction on the jar.

use the proportion given by the oil manufacturer. Pull the throttle trigger lever closed, and hold the brushcutter in a level, horizontal position. If at the proportion recommended by the manufacturer of the grass trimmer the engine is snotting oil and you can see leaks on it, then the proportion must be increased.

Starting the grass trimmer for the first time

When everything is checked and the prepared fuel mixture is poured into the tank, it is time to start the grass trimmer for the first time before its running-in. To do this, you need to perform the following manipulations:

  • Position the brushcutter on a flat, horizontal surface;
  • Move the air damper control lever to the closed position;
  • Pump a few pumps of primer fuel into the carburetor;
  • We turn on a toggle switch of ignition;
  • Smoothly pull the starter cord until you feel resistance;
  • Then use the cord to make 3 to 4 jerks until the lawnmower starts;
  • After starter we open the choke.

If the lawnmower won’t start or stalls the first time, open the choke on the carburettor slightly and try to start again.

Start the lawn trimmer

Once the machine is running, don’t rush the lawn trimmer immediately

Let the engine idle for about 5 minutes to warm up. While the tool is warming up, adjust the airflow with the choke knob so the line or blade spool would not spin. Once the tool is warmed up, fully open the air supply by moving the lever to the “ON” position and squeeze the throttle trigger to 1/2 and hold for 20 30 seconds. Then let the gas decrease and let the trimmer work for 30 minutes at idle.for 40 seconds. Keep it this way for about 10-15 minutes. Then switch it off and let it rest for 15 20 minutes.

After the lawnmower has cooled down, continue running in the engine according to the previous scheme. Start the grass trimmer while it is hot with the choke open. Do not hold the throttle for a long time, because the moving parts of the machine are just lapping together. Do not let the engine idle for a long time because it can overheat.

The next step is the running-in of the reducer of the gasoline grass trimmer. To do this choose an area with soft young grass. Mow for 5 to 10 minutes with 1/2 to 2/3 of full throttle. After that we make a break for 20 25 minutes. Repeat this cycle 3 to 4 times.

Start the lawnmower with a running-in period

After start-up, do not rush to run the grass trimmer immediately. Let the engine idle for 5 minutes to warm up. While it is warming up adjust air flow with air regulator so that the bobbin with fishing line or knife would not spin. Once the tool is warmed up, turn on the air supply by moving the lever to the “ON” position and squeeze the throttle trigger 1/2 turn and hold for about 2030 seconds. Then we need to turn off the gas and let the trimmer work for 30 to 40 seconds at idle mode. Keep it this way for 1015 minutes. Then turn off and let it rest for 15 20 minutes.

Having cooled the lawnmower we continue lapping according to the previous scheme. Start the grass trimmer while it is still hot with the choke open. Avoid holding the gas for a long time, because the moving parts of the machine are only lapping. Do not let the engine idle for a long time because it might overheat.

The next step is the running-in of the gasoline grass mower’s gearbox. Choose an area with soft, young grass. Let’s mow for 510 minutes with nudges on 1/22/3 of full throttle. After that we make a break for 2025 minutes. Repeat the cycle 34 times.

In general the lawnmower runs in accordance with the described algorithm until the fuel mixture in the tank is completely exhausted. After that the tool is ready to work for a long time. Check the gearbox and motor for temperature during operation. Do not overheat.

Servicing your brushcutter (grass trimmer)

Engine. Keep the air filter clean (no dirt or shavings); oil the foam filter. The fuel filter should be checked once a week and replaced if necessary, if the tool is used a lot. Check tightening of nuts and screws. before starting work. Fouling of the exhaust silencer (or its grid) and plugs must be cleaned as necessary.

Cutting blades. cutting edges must be well and correctly sharpened using appropriate templates and files (emery boards), observing cutting angles depending on the type of blade. Two-sided discs must be turned 180° at regular intervals and worn evenly. A blunt disc or a disc that has been badly or improperly sharpened cuts poorly and thus overloads the motor, which results in an accelerated reduction in its service life.

Trimmer line and trimmer heads. Use only straight line specially designed for trimmers. do not use wire or metal ropes! You should only use a line of the same diameter recommended by your trimmer manufacturer. Wind on bobbin tightly but not over winding. You should keep the mowing head clean and lubricated as necessary. A worn or deformed head may damage the brushcutter’s gearbox and/or shaft.

Angular gearbox. Clean off dirt as needed (this “coat” does not allow the gearbox to cool properly) and apply Husqvarna or similar grease to the gear pair.

Protective guards. Never operate your brushcutter without its protective guards. danger to life and limb and risk overloading the brushcutter engine. Use only the blade guard specified by the manufacturer for each type of cutting attachment.

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Self-repair of brushcutters

It should be noted that it is not always possible to repair a brushcutter yourself, but in most cases, small repairs are within everyone’s power.

If the grass trimmer motor broke, and you are not an auto mechanic and not an electrician, it is better not to try to repair the mechanism. It is unlikely that you can reassemble it. There can be such problems: low compression in the engine, the engine is jammed, the carburetor is out of order. If these words do not tell you anything, then you should not repair brushcutter on the picture and intuition.

It should be noted that the maintenance and repair of a chainsaw and a brushcutter are similar in many ways.

Trimmers for grass consists of a bar, a motor (it can be from above or below), and a mowing head with blades, various additional elements. What can be repaired by oneself?

This will make it possible to mow any hard grass. 1. Throttle control lever; 2. Handle; 3. Engine stop device; 4. Throttle control lever;

limiting bracket; 6. bar; 7. cutter bar guard;

1) If your On/Off rocker switch is stuck, you know how to make simple circuit diagrams, a soldering iron, solder, and rosin, you can easily replace the rocker switch with a new one. You can buy them at electrical stores and light stores.

2) If the wire limiter from the mowing head has fallen off, it can be wound with flexible copper or aluminum wire to the boom. You can also make a new attachment from a strip of stainless steel.

3) If the trimmer line in the cutter head reel breaks, there’s nothing easier than replacing it yourself. You can, of course, just buy a brushcutter head separately and replace it, but a line for a trimmer is 100 percent cheaper. Optimal material is a 0,9 to 1,5 mm trimmer line, nylon or kapron wire. Measure the diameter of the line you are using at once, before it runs out completely. Thinner may tear, thicker may cause engine overheating and unnecessary vibration. You need to disassemble the drum and wind the line for the trimmer by hand, then reassemble the drum.

4) If the boom is broken, it can also be repaired by taping and gluing to wooden slats or iron staples.

5) If the engine starts to vibrate strongly and is running rough, you may need to lubricate your brushcutter. Any trimmer for grass is easy to disassemble, it is recommended to lubricate it with technical oil at least once a year.

7) If the grass trimmer is equipped with plastic blades, and they are deformed for some reason, there is a way to replace them with metal ones. For this you need to make some stainless steel blades. At home it is a bit difficult, but the situation can be saved by a familiar turner working in an industrial plant or factory. The knives are attached to the shaft with a sleeve and washer. Such modernization will lead to the fact that the trimmer will be able to mow grass of any hardness. But care in handling such a trimmer is worthwhile.

8) The engine does not start? In order to start the boiler, sometimes even when it is hot, it is necessary to close the choke completely to enrich the mixture. Check the gasoline supply, clean the spark plug, replace it if necessary.

Safety Precautions for Mowing

What are the safety precautions when working with a trimmer? There are a few simple and straightforward points to follow to avoid dangerous situations and minimize the possibility of injury:

Do not use a grass trimmer in wet and wet weather (especially an electric grass trimmer); wear close-fitting clothing before mowing so as not to injure your skin by chunks of grass stems flying off the disc or fishing line at high speed;

Keep a distance of 15 meters from other people and pay attention to any signs that other people might be giving; use headphones or earplugs;

  • When using an electric grass trimmer, make sure that the wire from the extension cord is always left behind;
  • Wear thick rubber boots that are easy to clean after the work;
  • Use gloves and safety glasses to prevent small stones from getting into the eyes and respiratory tract;
  • If you are injured, consult a doctor immediately.
gasoline, grass, trimmer, starting

And don’t forget to look around in case there are obstacles ahead or to the side. While dipping the rod with the blade in a dense bush you should remember that there might be a stone, a stump, or berries (e.g. strawberries). Working with a trimmer requires concentration and attention, but, having learned simple rules, it will become habitual, understandable and will bring only positive emotions from the results.

Working in a gas trimmer

Most often used in a lawn mower (gas grass trimmer). Breakdown. It is the engine running at low speed, no load. First you need to start the mower and let it run. It’s best to mow the first one with a fishing line, because mowing grass provides less stress on the engine than mowing hay or bushes.

There is no need to work out all of the temporary life when you first start the engine. After idling, it’s best to mow the lawn for 10-15 minutes, then turn the machine off and let it cool down a bit. Use the hedge trimmer carefully, without sudden movements, to avoid hitting hard objects (stones). A stone bump can negatively affect the operation of components that have not yet been started. In some cases, play, noise and hum appear during operation. This can be easily avoided if the grass trimmer is started correctly.

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