Husqvarna trimmer gear grease

Trimmer Gear Lubrication

Gears must be lubricated regularly in accordance with the recommendations set out in the operating instructions for the model used. This should also be done if:

  • new gears were installed;
  • atypical sounds emanate from the gearbox during trimmer operation;
  • knives turn hard.

How to grease your (STIHL,HUSQVARNA and other) garden tools with the STARTER KIT

In addition to the gearbox, the trimmer shaft must also be lubricated regularly. This is the norm for proper care of the device.

With continuous use of the trimmer, the transmission is subject to stress from grass adhering to the blades, dirt or torque changes. The lubricant must be selected of high quality in order to extend the life of the gearbox.

Main gearbox malfunctions and ways to eliminate them

Various breakdowns occur with the gearbox of an electric or gasoline trimmer. The most common of them are presented in the table below. There you can also find the causes of their occurrence and methods of elimination.

Bearings are destroyed due to the use of inappropriate lubricant or due to lack of it. Also, their damage is caused by the harsh operating conditions of the brushcutter and the ingress of foreign particles of material (for example, broken metal teeth of mechanical transmissions) due to the fact that the integrity of the anthers is broken.

To remove the bearing, you need to disassemble the gearbox and use a special puller. If not, then you can try to do it with a hammer with a guide. In this case, work should be done carefully so as not to damage the seat. It is not recommended to use the preheating method to shoot the bearing. This is due to the fact that the metal can lose the required performance.

If the knife stops rotating under load or does not stop at all, then this is accompanied by an uncharacteristic sound.

Most gearbox problems can be easily fixed by hand. Replaceable parts are recommended to be purchased “native”, intended for the used brushcutter model.

How to lubricate the trimmer gear?

In the upper part of the body, where the gear unit 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 lubricant 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.

How to service trimmer head, how to lubricated trimmer head to prevent wear and damage

husqvarna, trimmer, gear, grease

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: on its surface, as a rule, grass residues adhere 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.

Lubricant for trimmer gear. How and how to lubricate?

Sometimes, in the midst of an intense mowing operation, your trimmer will start making 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.

Repair and lubrication of the trimmer gear

With frequent, intensive use of brushcutters, the gearbox may start to warm up or make sounds that are unusual for its normal operation, for example, grinding. This indicates that the mechanism needs to be lubricated. If this is not done in time, then more serious problems will arise (for example, gears will quickly wear out and need to be replaced), up to jamming. Other breakdowns also occur with the transmission. Repair and lubrication of the gearbox can be done independently. for this you just need to familiarize yourself with the features of these works and stock up on some of the available tools.

Lubricant selection rules

Many garden tool companies such as Stihl and Husqvarna make their own lubricants for their products. In this case, it is recommended to use just such a product. it is the best way to reduce the wear of equipment. If original lubricant is not available for the trimmer, several factors should be taken into account when choosing a composition:

  • the quality of the products of the brand that produces the lubricant;
  • the viscosity of the composition. this parameter is influenced by the torque of the shaft;
  • adhesion to the surface of the assembly components;
  • the consumption of the lubricating coating. the air temperature, the type and volume of work to be carried out must be taken into account.
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Advice! If you find it difficult to choose a lubricant, it is better to purchase a universal composition. It usually contains a number of additional components to protect the gearbox and extend the life of the gearbox.

By consistency, lubricants can be liquid and semi-liquid, with m of various additives and additives, as well as plastic and solid. The plastic ones are the most common, and the hard ones represent their original state. The most popular in terms of composition are:

  • graphite lubricants that reduce friction and improve gear movement;
  • lithium compounds with high anti-corrosion properties and additives that reduce metal wear;
  • universal substances containing mineral oils and additives that increase the performance of the gearbox.

The most common lubricants include: Litol-24, Champion EP-0, Azmol 158, as well as the composition of the company “Shtil”.

Algorithm for self-lubrication of the gearbox

For lubrication of the transmission mechanism, its preliminary disassembly is not necessary. A special hole for these purposes is already embedded in the device (it is shown in the photo below). In addition to gears, when carrying out lubrication, attention should be paid to the following elements of the mechanism:

  • bearing unit;
  • flywheel and starter coil pawl.

Lubricant injection hole

Fill in oil or add solid lubricant through a grease nipple closed with a screw. In this case, the actions are performed in the following sequence:

  • clean the gearbox housing from dirt and adhered grass, especially carefully the area around the plug so that debris does not get inside the mechanism;
  • using the appropriate tool (often it comes with a trimmer), unscrew the plug;
  • into the open technological hole, the selected lubricant is injected from a tube, or using a syringe, as shown in the photo below;
  • screw the plug into place.

Gear lubrication

When applying lubricant, you need to rotate the knife so that it is evenly distributed over the teeth of the moving gears.

If for any reason the gearbox needs to be disassembled, then the old lubricant must be completely removed from the entire surface of the gears and the housing, the shaft, and only then use a new one. The disassembled mechanism is convenient to lubricate with solid compounds.

The whole gear lubrication process is demonstrated in the video:

It is required to lubricate the transmission unit at least once a year, but it is recommended to do this every 20 hours of intensive use of the brushcutter. If the first signs of malfunctions appear with the mechanism, then you need to add the lubricant as soon as possible.

Gearbox lubrication algorithm

There is no need to disassemble the unit to lubricate the gearbox transmission. for this, a special hole is provided in the upper part of the housing. In addition to the gears, components such as the bearing assembly must be thoroughly lubricated. The wear of its sealed walls leads to the fact that the grease comes out of the seat and the vibration of the equipment begins. This problem is relevant for Chinese trimmers. The solution will be to replace the “native” bearings with high quality parts. The flywheel is also subject to lubrication. during operation, the part is covered with fragments of grass, which create additional resistance when mowing.

Important! It is also necessary to lubricate the pawl of the starter coil, since when starting it touches the grooves on the flywheel. This leads to its wear and tear, as well as to the appearance of mechanochemical corrosion due to the fact that the parts are made of various materials (flywheel. aluminum, pawl. steel).

Solid grease or oil is placed inside through a hole secured by a screw. In this case, the following actions are performed:

  • the gearbox housing is carefully cleaned of dirt, especially near the plug, in order to prevent debris from getting inside the unit;
  • a special device is supplied with the brushcutter, they remove the cork;
  • from a tube or using a syringe, lubricate is introduced into the hole, smoothly turning the cutting unit so that the substance is evenly distributed over the teeth of the gears;
  • return the plug to its original place.

Advice! If it becomes necessary to disassemble the gearbox, remove the old grease from the housing, from the surface of the shaft and gears, and then apply a new one. When disassembled, it is very convenient to lubricate parts with solids.

The gearbox must be lubricated annually, and with intensive use, this procedure should be performed every 20 hours of tool operation. If signs of breakage appear, the lubrication site should be treated with the composition of the lubrication site as soon as possible.

Lubricant for trimmer gear. How and how to lubricate?

Sometimes, in the midst of an intense mowing operation, your trimmer will start making 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 gear?

In the process of operation, the mechanical part of the trimmer is loaded by contact forces on the teeth, resistance reactions from adhering 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, etc. 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 their own service centers, do not give clear recommendations at all regarding the period of operation of the gearbox between two lubrications.
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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 lubricant 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 unit 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 lubricant 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: on its surface, as a rule, grass residues adhere 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.

Care and maintenance of mowers

Service of mowers, both with a gasoline and an electric engine, although it has its own differences, is quite possible on its own. Tracking 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. Checking the candles and muffler for soot contamination.

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 apply the grease in time, which is intended for the trimmer gear. You can ask your technician what kind of 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 guarantee. Some trimmer manufacturers recommend using their proprietary trimmer gear lubricant, such as Husqvarna, Huter, Makita.

Husqvarna Trimmer Gear Lubricant

The fact is that in the process of 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.

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

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 petrol trimmer

In detail, this is the following.

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

Electric trimmer, example of a complete set. 1. engine running on gasoline; 2. container for fuel; 3. starter handle; 4. bar, can be disassembled, telescopic, solid; 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. cutting tool, which is attached to the 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.

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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.

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

Trimmer with motor in the upper part of the complete set

In addition, such a mower has a much higher power.

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

Trimmer Gear Lubricant

Types of trimmers

For a long time, for trimming the lawn, they have not used such a tool for mowing grass as an ordinary scythe. 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 mowers with a gasoline engine. 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 lawn areas 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 when the windows are closed, when they mow the grass with it in 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, comparatively, 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

How to Grease a Husqvarna Bevel Gear.

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.

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, both its performance and its service life will depend on what kind of lubricant will be in the trimmer gearbox.

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 thickness and viscosity necessary for such parts, it must be remembered that children can play on the lawn, adults can relax and the 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 tube of grease and squeeze the grease 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.