What Lubricant To Use For Trimmer

27th March 2021

Lubricant for trimmer gear. How and how to lubricate?

Sometimes, in the midst of an intense mowing operation, your trimmer will make an unpleasant, grinding noise. This complains about the lack of lubrication, the gearbox is the most heavily loaded unit of the device. And soon these “warnings” may be followed by a jamming of the drive.

What kind of lubricant should be used for the trimmer gearbox?

During operation, the mechanical part of the trimmer is loaded by contact forces on the teeth, resistance reactions from adhered grass (sometimes with dirt), dynamic, shock loads due to constantly changing torque. Lubricant for the trimmer gear must fully take into account these features, so the selection of the brand must be strictly individual.

The following factors are taken into account:

Manufacturer’s brand. Each brand reasonably focuses on its own lubricants (you can talk about cheap Chinese products later). This applies to manufacturers such as Husqvarna, Stihl, Huter, Makita, and others. The only exceptions are domestic trimmers: for example, the Caliber in the user manual does not indicate the brand of lubricant at all.
The viscosity of the lubricant. As you know, all lubricants are divided into three groups. high-viscosity (colloidal systems containing various additives), plastic compounds for universal use and solid lubricants that soften during operation.
Good adhesion to the surface of gearbox parts, as a result of which the grease is not squeezed out into the gaps or out of the unit.
Intensity of grease consumption by the gearbox. Here you have to rely on your own experience and the recommendations of specialists, since some trimmer manufacturers, relying on the availability of their own service centers, do not give clear recommendations at all regarding the period of operation of the gearbox between two lubrications.

Lubricant consumption also depends on the temperature at which it retains its lubricity. When the gearbox is heated to 40 ° C, it is considered that its operating conditions are satisfactory, and there is sufficient lubrication.

It is believed that there is no universal grease for the trimmer gearbox, but this is not entirely true. In fact, a suitable lubricant will be one that contains the following components:

Lead-free antiwear additives;
Solid lubricants with the presence of graphite or molybdenum disulfide (the latter is preferable, since in this case the lubricity is fully retained for a wide range of shaft revolutions);
Only mineral (inorganic!) Oils, highly refined.

These requirements are fully met by Gear Grease OREGON or Champion EP-0 lithium greases, domestic compositions Oleo-Mas, Litol.24, or Azmol 158, as well as those recommended by the manufacturer of a particular trimmer model.

How to lubricate the trimmer gear?

In the upper part of the body, where the gear block is installed, there is a technological hole, which is plugged with a screw during trimmer operation. This screw is unscrewed, and 1.5. 2 ml of grease is injected into the hole using the spout on the tube. If the lubricant was purchased in a different package, then an ordinary disposable medical syringe is also suitable for this operation.

After that, the screw is reinstalled. This procedure, regardless of the user’s recommendations, should be performed every 10. 15 hours of operation of the trimmer in working mode. Other reasons for updating or replacing the gearbox lubricant are the independent performance of minor routine maintenance (for example, cleaning and flushing the gears of the gearbox before the start of the summer season), repairing the unit, preserving the trimmer for the winter, etc.

If the gear unit is disassembled, it is recommended to completely remove the remnants of the old grease from the surface of the parts, even if it does not have any traces of oxidation and contamination. And only then apply new grease. After applying the lubricant, it is recommended to rotate the shaft several times by hand, and make sure that the lubricant is evenly distributed over all parts of the gearbox.

When lubricating, pay particular attention to the following elements:

Flywheel: grass residues tend to stick to its surface intensively, and thickening herbal juice creates additional resistance.
Pawl of the starter coil, which in the process of turning on the drive constantly comes into contact with the grooves on the flywheel. In this case, not only mechanical wear occurs, but also mechanochemical corrosion of the flywheel-dog connection, since the materials of this pair are different (the flywheel is aluminum, and the dog is steel).
Bearings, if their seals are worn out, and through them the remaining grease is squeezed out. In this case, the unit begins to vibrate intensively when loaded. This happens with Chinese-made trimmers, so it is worth thinking in the future about replacing the bearing assembly with a better one, for example, from the Swedish company SKF.

Types of trimmers

For a long time, they have not used such a lawn mowing tool as an ordinary scythe to trim the lawn. Of course, in the villages this tool remained, but in a country house or in the country, in order to mow a lawn or a lawn overgrown with grass, overgrown with grass roadsides, they use a trimmer. This is a kind of garden tool that combines a scythe and a lawn mower.

Trimmers are different, but basically they can be used in three types. These are gasoline, electric and battery powered.

The most powerful are gasoline-powered lawn mowers. They are considered a professional tool, they are used not only for lawns near the house, but also by employees of housing offices and road administrations to bring the areas covered with a lawn in order. The engine of this tool is of high power, usually air-cooled. Having a container with gasoline and oil for the engine behind his back in a backpack, the worker is not tied to the place and can handle large areas at a considerable distance, and with a fairly high speed of work.

Petrol trimmer in operation

Of course, such a tool also has its drawbacks, for example, a large amount of exhaust gases, a lot of noise, which is also heard with closed windows, when they mow the grass with it on the street. If, for example, something of the trimmer elements fails, it will be difficult to make repairs yourself without work experience. In addition, it has a large, relatively, weight, it will be difficult for a woman to work with it, and the price is much higher than other types.

Electric powered tool, powered by electric cable, less powerful tool. It has an upper engine layout and a lower engine layout. Both models have their pros and cons. Due to being tied to a power source, it is used in private households, although you have to equip the device with an extension cord.

Power cord trimmer

But they are more convenient to work with and are light in weight. In addition, the noise and vibration levels are low, although they will not be able to mow thick plant stems. Easy to repair and maintain. Affordable prices.

The third type of trimmer is rechargeable. They do an excellent job where it would be impossible to fit a mower with a cable, they are convenient to work, they can be easily carried from place to place, they will not get tangled in the wire and will not cut it. Quiet, inexpensive.

Bosch cordless trimmer

There are difficulties in their work, this is a battery that constantly needs recharging, the smallest power in comparison with other types. Therefore, they are bought as an addition to two other instruments, and the choice of models is not so large.

Trimmer device and main differences in models

If you take apart any gasoline mower, you can make sure that it is made in almost the same way, with the exception of additional options and design.

The structure of the gasoline trimmer

In detail, this is the following.

If it is an electric tool, it has a slight difference:

Electric trimmer, configuration example. 1. engine running on gasoline; 2. container for fuel; 3. starter handle; 4. bar, can be disassembled, telescopic, one-piece; 5. the handle, which is controlled during operation, can have a different shape; 6. buttons for trimmer control; 7. the buttons are connected to the engine via a small cable; 8 is a gearbox that needs constant maintenance and the addition of special oil. It transfers rotation from the motor to the shaft on which the spindle is mounted; 9. a cutting tool, which is attached to a spindle, which, in turn, consists of a spool of fishing line, which is used to cut grass, or a special knife; 10. a casing to protect the worker from flying pieces of stems.

As you can see from the photo, its difference is that there are not so many control buttons, there is one. either turn it on or off, the engine can be located either below, near the cutting tool. In this case, it is easier to work with such a tool, but it is not recommended to mow wet grass. But in this case, the gearbox, as a part, is absent, since the rotation is transmitted from the motor directly to the spindle shaft and the cutting unit. Naturally, like all other equipment that does not have a gearbox by design, it has a small power.

Adding Lubricant to a Stihl hl94k Hedge Trimmer

If the engine is on the top, it is more practical and the engine is more durable.

Trimmer with motor in the upper part as a complete set

In addition, such a mower has much more power.

If we consider the battery version, it has a motor and battery at the top of the boom.

Trimmer Gear Lubricant

Types of trimmers
Trimmer device and main differences in models
Care and maintenance of lawn mowers
What kind of lubricant should be in the trimmer gear
How to lubricate and add lubricant to the electric trimmer gearbox

Care and maintenance of lawn mowers

Maintenance of lawn mowers, both with a gasoline and an electric motor, although it has its own differences, is quite possible on its own. Keeping track of the sharpness of the blades, sharpening correctly if they are dull is not a particularly difficult task. If there is no sharpening equipment at home, you can sharpen them in workshops. In order for them to wear out equally on both sides, we periodically turn them over to the other side.

The air filter, which is installed on the gasoline spit, should be checked at intervals of one week, at least. Wet it with oil, if necessary, change it if it gets dirty. We check the candles and muffler for contamination from carbon deposits.

If the engine is with electric power supply, it is necessary to alternate the operating time indicated in the passport with the engine cooling time. If the equipment has a cutting element of the line, it also needs to be monitored, the reel on which it is wound is also periodically cleaned.

Untimely cleaning of the electric motor leads to the accumulation of moisture in it, the gasoline engine to a loss of its power.

It is especially important to pay attention to the maintenance of the gearbox. This detail is very important in the operation of the mower, unless the engine is directly connected to the cutting unit.

The first is to make sure that dirt does not accumulate there.

Second, do not forget to use the grease in time, which is intended for the trimmer gear. You can ask your dealer what lubricant is needed for the trimmer gear you are buying. They will answer this question as correctly as possible, since the service life of the trimmer depends on this, and this is already a warranty. Some trimmer manufacturers recommend using their proprietary trimmer gear lubricant, such as Husqvarna, Huter, Makita.

Husqvarna trimmer gear grease

The fact is that during operation the load on the gear train increases, since the rotation speed is constantly changing. At the same time, adhering grass, especially in wet weather or dew, creates its own additional load. When deciding which lubricant is best to use for your trimmer gearbox, you need to decide separately for each model.

If these are Russian or Russian-Chinese manufacturers, the specific brand of lubricant is not indicated here.

What kind of lubricant should be in the trimmer gear

Many people use Litol for this purpose, its only advantage is the low price and many people change the lubricant in the trimmer gearbox to Litol. At the same time, this grease is thicker and more viscous than that of specialized greases; it does not have special additives in its composition. Therefore, you need to constantly monitor the level of lubricant in the gearbox, add it every 20 hours. In addition, Litol cannot be used on aluminum parts. Therefore, from what kind of lubricant will be in the trimmer gearbox, both its performance and its service life will depend.

As already mentioned, it is very good if, when buying a mower, you immediately purchase lubricant from the same company as the mower.

Special grease from Oleo-Mac for gearboxes

In addition to the fact that special lubricants have the density and viscosity necessary for such parts, it must be remembered that children can play on the lawn, adults can rest and that waste from grease that is not suitable for this purpose is unnecessary.

How to lubricate and add lubricant to the electric trimmer gearbox

In order to lubricate the gearbox, there are technological holes in it. To do this, unscrew the cap of the lubricant tube and squeeze the lubricant into the hole.

We unscrew the screw and inject grease into the technological hole

If the grease is in another container, fill in a syringe with a capacity of 5 cubes and inject the grease through the syringe.

Can also be injected through a tube

If this is a gearbox from a gasoline engine, we find the plug, it is usually indicated on the diagram. And a little more than an electric mower gearbox. We clean it and the place around it, so that dirt does not get inside when opening. Then, put the trimmer on the surface (it must be turned off) sideways and with one hand squeeze out the grease slowly in the above way, and with the other we rotate the knife so that the grease is evenly distributed inside. Then we close tightly the stopper on the reducer and the tube or syringe. You need to lubricate at least after 25 hours of operation, and you yourself choose which lubricant to lubricate the trimmer gear. The principle of operation of the gearbox and gasoline and electric is the same.

Lower gear

On mowers with trimmer drive with working attachments, a reducer bevel gearbox is provided. The transmission of torque takes place through bevel gears. This type of gearbox is produced in two types: serviceable and maintenance-free. The name serviced. the gearbox received from the possibility of adding lubricant to the working cavity for lubricating the gears. If the gearbox is not serviced, then the lubricant is supplied by the manufacturer for the entire service life, and the gearbox itself has a sealed housing. According to the developers of the manufacturer, such measures increase the service life of the gearbox, since contamination does not get inside through the non-tightness of the lubricating hole.
The lawn mower gearbox is the most loaded part that transmits force with a change in direction, therefore, proper care and proper lubrication are very important for the unit, what kind of lubricant is needed for the gearbox and repair of the bevel gearbox c = with replacement bearings, you can watch the video below.

What kind of lubricant should be used for the trimmer gearbox?

The following factors are taken into account:

Manufacturer’s brand. Do-it-yourself champion t 336 trimmer repair lawn mowers how to lubricate the shaft pc video. Example. Each brand reasonably focuses on its own lubricants (you can talk about cheap Chinese products later). This applies to manufacturers such as Husqvarna, Stihl, Huter, Makita, and others. The only exceptions are domestic trimmers: for example, the Caliber in the user manual does not indicate the brand of lubricant at all.
The viscosity of the lubricant. As you know, all lubricants are divided into three groups. high-viscosity (colloidal systems containing various additives), plastic compounds for universal use and solid lubricants that soften during operation.
Good adhesion to the surface of gearbox parts, as a result of which the grease is not squeezed out into the gaps or out of the unit.
Intensity of grease consumption by the gearbox. Here you have to rely on your own experience and the recommendations of specialists, since some trimmer manufacturers, relying on the availability of their own service centers, do not give clear recommendations at all regarding the period of operation of the gearbox between two lubrications.

Stihl lawn mowers are well-deserved

Stihl lawn mowers differ in class, engine type and purpose. Designed for the care of small areas before cleaning large areas from thickets of weeds, shrubs and young trees. In this regard, it is customary to divide them into classes.
The first class includes low-power amateur devices up to 1.2hp. By design, Stihl amateur braids are produced with a curved bar. which allows excluding the lower bevel gearbox from the design, which significantly reduces the cost and maintenance. curved bar mowers are designed to work with cutting tools made of line or polymer knives. It is convenient to use them in garden plots with small areas.

The second class refers to universal units of average power up to 2.2 hp, designed for field and landscape work. In such designs, a straight rigid shaft is used, which allows you to equip this class with sawing steel knives for nozzles with which you can cut shrubs and small trees.
The design provides for a bevel serviceable gearbox. What kind of lubricant to use for the lawn mowers gearbox. A special one is used under the brand name “Stihl” or the usual Russian Litol grease.

Engines from 6,3 to 8 HP are intended for professional use in forestry or horticulture. Their name is hedge trimmers, these are the most powerful lawn mowers for working on large areas, cutting down small bushes and trees. In the arsenal of the working tool there are saw blades for cleaning shrubs up to 7 cm in diameter. The brush cutters are equipped with an anti-vibration system, thanks to which the work with such a tool becomes more comfortable. What kind of lubricant to lubricate the gearbox of lawn mowers with powerful drive mechanisms, lubrication of the gearbox of Stihl lawn mowers is made with a special branded or Stihl lubricant or Russian-made Litol 24.

How to lubricate the trimmer gear?

When lubricating, pay particular attention to the following elements:

Flywheel: grass residues tend to stick to its surface intensively, and thickening herbal juice creates additional resistance.
Pawl of the starter coil, which in the process of turning on the drive constantly comes into contact with the grooves on the flywheel. In this case, not only mechanical wear occurs, but also mechanochemical corrosion of the flywheel-dog connection, since the materials of this pair are different (the flywheel is aluminum, and the dog is steel).
Bearings, if their seals are worn out, and through them the remaining grease is squeezed out. In this case, the unit begins to vibrate intensively when loaded. This happens with Chinese-made trimmers, so it is worth thinking in the future about replacing the bearing assembly with a better one, for example, from the Swedish company SKF.

Lubricate the shafts of Huter GGT-2500S lawn mowers. And all the rest of the lawn mower!

Check it out. is there any grease on the shafts of your lawn mowers. Most likely it is dry there!

It is believed that there is no universal grease for the trimmer gearbox, but this is not entirely true. In fact, a suitable lubricant will be one that contains the following components:

Lead-free antiwear additives;
Solid lubricants with the presence of graphite or molybdenum disulfide (the latter is preferable, since in this case the lubricity is fully retained for a wide range of shaft revolutions);
Only mineral (inorganic!) Oils, highly refined.

Lubricant for lawn mowers gearbox

After the snow cover disappears with the first spring days, grass begins to appear, which pleases with a delicate green cover. However, literally in a few weeks, all the irregularities and flaws become noticeable, the weed begins to rise above the lawn. From this moment the time of struggle for the beauty of the lawn begins. Of course, an ordinary scythe or sickle can be used to control weeds, but this is long and laborious, and the cut grass becomes ugly.

How To Lubricate Trimmer Shaft Video

Lubricant for trimmer gear. How and how to lubricate?

Sometimes, in the midst of an intense mowing operation, your trimmer will make an unpleasant, grinding noise. Find out what the next video will be about lawn mowers how to lubricate the trimmer disc shaft. This complains about the lack of lubrication, the gearbox is the most heavily loaded unit of the device. And soon these “warnings” may be followed by a jamming of the drive.

Drive motors

Most mowers are equipped with a gasoline engine (ICE), it can be two-stroke and four-stroke, there is no particular difference in them. The four-stroke is more economical and powerful, but more difficult to maintain and more expensive to repair. The two-stroke is easier to maintain, cheaper but less powerful, consumes more fuel, and has a dirtier and noisier exhaust. There are also combined engines. In addition to gasoline engines, trimmers can be equipped with electric motors that are connected to a 220V household network with a long cable, but, as a rule, these are household appliances as they are tied to the power wires to the network.

How and how to lubricate the gearbox of lawn mowers?

Responsible maintenance is the key to long tool life. One of the requirements in the operation of a lawn mower is the timely lubrication of the gearbox, as well as cleaning the filters. With what composition to lubricate the gearbox, every user of such a unit knows. First, it is cleaned in several stages, then the element is removed from the casing. It is cleaned with gasoline and dried. The place for the filter is prepared carefully, cleaning it from dust and old oil. The main signal for lubricating the lawn mowers gearbox is extraneous noise and rapid heating of the equipment. This means that it is necessary to lubricate the spare part as soon as possible. For lubrication intervals, refer to the instruction manual for your lawn mower. Experts say gearbox maintenance should be done every 15 hours.

Lower and upper gear lubrication

There are tips that recommend lubrication at the end of the season. However, most people find it best to do this at the beginning of each season. When we repair a unit, as well as carry out any disassembly, it is necessary to use lubricants. The gearbox needs additional lubrication when the old trimmer is inserted.

Modern trimmers are equipped with a gearbox that measures the angle of transmission of mechanical energy between two components: the shaft and the head. Bevel gears are considered common, they can easily withstand high speeds, are equipped with smooth engagement, and also an increased level of bearing capacity. The housing includes a shaft, a gear wheel, which is pressed onto the driven shaft. In order to reduce friction, bearings are installed on the bearing points of the shaft.

Petrol trimmer grease

Correctly selected lawn mower care guarantees the durability and quality of the equipment. Manufacturers try to take into account all the nuances and prescribe what materials to use for maintenance. Usually, a specific type of lubricant is not indicated, it is simply given generally known standards that lubricants must comply with.

The lubricant must be selected in such a way as to take into account temperature conditions, rotational speed, load dynamics and vibration. The main requirement is that this mixture remains in the zone of maximum friction.

Lubricants must have good anti-corrosion properties, reliably protecting the components from rust.

Based on the above information, it should be noted that lawn mowers manufacturers are developing universal additional tools for their equipment. It can be served with general industrial compositions. The main condition is compliance with the operating conditions, namely, the presence of an anti-rust and lime agent in the composition, as well as a filler, which consists of a solid lubricant. The grease is poured into the gearbox into a special hole, the unit is not dismantled.

Replacement is done quickly enough.

First, turn off the device from the network. Devices using gasoline must be drained of gasoline.
If the lubricant changes completely, then be sure to flush the gearbox. To do this, first fill in the cleaner, then rinse the gearbox well, then drain. It is important to clean the case completely.
With the special tool that is included with the trimmer, you need to unscrew the gearbox plug.
Apply a new lubricant: insert a syringe with a tube into the hole and squeeze out the lubricant (2-5 ml).
Turn the shaft manually, turn on the scythe at low speed without load. This is necessary so that the lubricant is qualitatively distributed in places subject to maximum friction.

Prevention and possible malfunctions of the gearbox

the lawn mower requires the first preventive maintenance immediately after purchase, because the manufacturer puts in a small amount of lubricant. If the trimmer does a small amount of work, then lubricate the device at the beginning and end of the season. If the lawn mower works a lot, then lubricate after 30-55 hours of operation.

If the lubrication is insufficient, then it is completely changed. Manufacturers are trying to produce universal chemicals that are suitable for the processing of various hoses and assemblies.

The main malfunctions include the most common options.

Strong heat. This indicates that the lubrication has run out. It is necessary to add lubricants and run them in at low mode.
Gearbox vibrates or wobbles. This situation indicates mechanical damage.
There is a knock. Then the bearing collapsed, the boot is damaged.
If the trimmer knife is jammed, then the mechanism should be changed completely.

How to properly lubricate the gearbox of lawn mowers, see below.

Makita 196804-7

Japanese brand lubricant designed to be applied to the shank and inside the chuck only. Produced in a white and red tube with the brand logo and index. The container holds 95 g, which lasts from a month to a year, depending on the frequency of use of the puncher. Soft tube walls make it easy to extrude and apply to tooling.

Pros of Makita 196804-7

Does not delaminate even after long storage.
During heating, does not turn into wax.
Produced directly in Japan.
Convenient squeeze packaging.
Tube fits easily into suitcase for transport.
There is a loop for hanging in a garage or other workplace.

Cons of Makita 196804-7

The cost is relatively high.
White vial is quickly stained.
The composition is not indicated on the packaging. it is difficult to find a similar one, but cheaper.

Husqvarna 2-stroke HP L

This 2-stroke oil is specially formulated for tough working conditions. Among them are serious temperature fluctuations and the use of low quality gasoline. The lubricant contains additives that prevent deposits on structural elements, create the necessary fluidity and viscosity. Can be used for trimmers, chainsaws, all-season scooters. It can be poured even in severe frosts. the crystallization temperature of the oil averages about 40 degrees.

The use of a 2-stroke engine lubricant will ensure uninterrupted functionality of the equipment even in high heat and in aggressive working environments. Possesses improved properties. the composition has stable protective characteristics, minimizes friction, which reduces the need for repair and maintenance.

The best lubricant for rock drill drills

Elitech

This category is completed by another domestic semi-synthetic lubricant. It is produced in a soft tube with a capacity of 60 g. The substance is designed to reduce tool friction and protect against corrosion. The temperature range allows the use of the product from 55 to 140 degrees.

No strong splashing when overheated.
Affordable price.
Doesn’t turn into oil.
There is a hanging hole in the tube.
Suitable for all types of shanks and types of working equipment (chisel, chisel, crown, drill).

Darkens a lot with prolonged drilling.
If stored for a long time in a warehouse or garage, it may dry out or delaminate.
Less tube capacity than other brands.

Output. This grease is the best way to prevent metal corrosion. With it, your borax and cartridge elements will remain intact and without traces of rust. If you prefer to use expensive drills and crowns from domestic manufacturers, then this lubricant is perfect.

What kind of drill lubricant you decide to use?

Hedge trimmer sharpening. What do you do for lubricant when done?

Makita 196804-7
Arsenal AR-401 (100 g) PATRIOT
Bison ZSB-125
Elitech

Arsenal AR-401 (100 g) PATRIOT

Pros of Arsenal AR-401 (100 g) PATRIOT

Relatively low cost.
You need to squeeze out quite a bit.
Convenient packaging for use.
Retains dust well.
Not easily soiled case.
There is a hole for hanging.

Cons of Arsenal AR-401 (100g) PATRIOT

Sometimes splashes from the cartridge on the wall.
It becomes very fluid when heated.
The cap of the tube does not have a relief. it is difficult to unscrew it in working gloves.

How often do you need to lubricate the lawn mowers’ gearbox?

In most cases, the application of the required portion of oil or its complete replacement is carried out once a year. before the start of the season or at the end of it. This is sufficient if the household trimmer is used to cut grass about 3-4 days a month.

If the lawnmower is regularly used for mowing young grass in large areas, then lubricate the gearbox at least once every 30–45 operating hours. And if a trimmer is needed for daily mowing not only of young grass, but also of old tall, stiff weeds, then it is required to change the lubricant in its gearbox at least once every 20 hours.

The fact that the lawn mowers’ gearbox needs lubrication will be prompted by factors such as increased noise and overheating. In this case, it is necessary to remove the mechanism, disassemble it and check the internal parts. If during the inspection it was found that there is enough lubricant in the assembly, then it must be replaced entirely. If there is too little oil, the operator will need to add the missing amount of lubricant.

How to lubricate a clipper

The need for lubrication of gears is obvious. This reduces friction, wear, and increases the productivity of mechanisms. Depending on the version of the unit (crankcase or “dry”), the lubrication method also changes.

Is there a special grease for plastic gears?
Mineral and synthetic oil
The best lubricant for rock drill drills
Makita 196804-7
Arsenal AR-401 (100 g) PATRIOT
Bison ZSB-125
Elitech
Husqvarna 2-stroke HP L
Which manufacturers produce grease for the gearbox?
Three-dimensional reducer device
How often do you need to lubricate the lawn mowers’ gearbox?
Important feature
What kind of lubricant to choose
Types of reducers for lawn mowers

Sources:

http://themechanic.ru/smazka-dlja-reduktora-trimmera/
http://stroy-dvorik.ru/navesnoe-oborudovanie/smazka-trimmera-svoimi-rukami-video.html
http://stroy-podskazka.ru/trimmery/kak-smazat-reduktor/
http://mastichi.ru/priboryi/chem-smazat-mashinku-dlya-strijki