DIY Electrimmer’s shaft lubrication. Used types of lubrication

How and how to lubricate the shafts in the rod of motorcycles

Sometimes, in the midst of intensive spying of herbal, your trimmer for grass begins to make unpleasant, grinding sounds. This complains about the lack of lubricant gearbox. the most intensely loaded node of the device. And soon, these “warnings” may follow the junction of the drive.

Place of grease of a trimmer for grass

For uninterrupted operation and durability of the mechanism, a thorough inspection and care should be carried out. An important point is the lubrication of moving parts. In most cases, these are:

Popular among users is the multi-purpose waterproof lubrication “Litol-24”. Operating temperature interval. from.40 to 120 degrees. This lubricant is used in friction nodes and is effective at elevated temperatures.

Reducer device trimmer for grass

The gearbox of a trimmer for grass is a node that transfers the rotational movement of the engine shaft to the knife or fishing line. It is located on the lower end of the motorcycle rod. The gear node is also designed to lower the engine speed of the trimmer for grass.

The mechanism consists depending on the model of the motokos of several gears rotating at a high speed. As a result of this, they heat up due to severe friction. If the lubricant is not enough, or it is not at all, then the process leads to a strong overheating and failure of the parts, and, accordingly, the need to carry out a difficult repair. So that this does not happen, lubricate the gear node in time. Misused gearbox is presented in the photo below.

The reducers of modern trimmers of different models from various manufacturers differ from each other by the design and the size of the seat. It happens:

The most common diameters of round seats are 24, 25.5 and 26 mm.

Motokos is equipped with gearboxes with different types of gears:

• conical;
• worm;
• spiroid;
• cylindrical;
• planetary;
• wave;
• combined.

Drive shaft and gearbox are very loaded nodes of a trimmer for grass, which are largely susceptible to wear. Between them, the movement is transmitted due to the adhesion of the teeth of the gears located at different angles to each other. Effective gear works only if there are no mechanical damage. In this case, the mechanism should not overheat, otherwise its jamming may occur.

The main malfunctions of the gearbox and ways to eliminate them

With a gearbox of an electric or gasoline trimmer for grass, various breakdowns occur. The most frequent of them are presented in the table further. There you can also find the reasons for their occurrence and methods of elimination.

Bearings are destroyed due to the use of inappropriate lubrication or due to its absence. Their damage is also caused by severe operating conditions of motorcycles and the ingress of extraneous particles of the material (for example, broken metal teeth of mechanical transmissions) due to the fact that the integrity of the anthers is violated.

To remove the bearing, you need to disassemble the gearbox and use a special puller. If it is not, then you can try to do it with a hammer with a mentor. In this case, work should be carefully so as not to damage the seat. Using the pre.heating method to shoot the bearing is not recommended. This is due to the fact that the metal may lose the required operational characteristics.

If the knife ceases to rotate under load or stands still, then this is accompanied by an uncharacteristic sound.

Most gearboxes can easily be eliminated with your own hands. Replaced details are recommended to purchase “relatives” designed for the used motorcosa.

How to grease the shafts of motorcycles with a collapsible barbell

In a motorcycle with a collapsible bar, you need to lubricate not only the gearbox, but also the shafts themselves. the upper and the lower, which are connected to each other using the coupling.

The lower part of the shaft, in principle, is always lubricated, because when lubricating the gearbox, part falls on the shaft.

But everything else is usually dry.Especially where the two shafts are interconnected.

In this review, we will consider in detail how to lubricate the shafts and which lubricant is better to use. By the way, a shaft on a motorcycle with a non.vegetable bar must also be periodically lubricated.

We also advise you to read: how to lubricate the motorcosa gearbox so that it serves much longer than the warranty period.

The main stages of work

First of all, we disassemble the bar to two parts, which are fastened to each other using a connecting tube.

We extract the shafts from the rod of the motorcycles, and then grease abundantly. And as a lubricant, the author recommends using the CHRUS. This lubricant is great for both the gearbox and for shafts.

Pay attention: lubricate not only the slots at the ends, but also both shafts along the entire length. After maintenance, we collect everything back.

Read more about how to grease the shafts of motorcycles with a collapsible bar, watch the video below. The review is prepared on the basis of a video from the YouTube channel RU VEP.

The main malfunctions of the gearbox and ways to eliminate them

With a gearbox of an electric or gasoline trimmer for grass, various breakdowns occur. The most frequent of them are presented in the table further. There you can also find the reasons for their occurrence and methods of elimination.

Bearings are destroyed due to the use of inappropriate lubrication or due to its absence. Their damage is also caused by severe operating conditions of motorcycles and the ingress of extraneous particles of the material (for example, broken metal teeth of mechanical transmissions) due to the fact that the integrity of the anthers is violated.

To remove the bearing, you need to disassemble the gearbox and use a special puller. If it is not, then you can try to do it with a hammer with a mentor. In this case, work should be carefully so as not to damage the seat. Using the pre.heating method to shoot the bearing is not recommended. This is due to the fact that the metal may lose the required operational characteristics.

If the knife ceases to rotate under load or stands still, then this is accompanied by an uncharacteristic sound.

Most gearboxes can easily be eliminated with your own hands. Replaced details are recommended to purchase “relatives” designed for the used motorcosa.

Rod and the drive of the working body

The bar has two very important functions: the first. forms a hard frame of the entire structure, the second. a shaft passes inside the metal roller rod, which connects the working organ with the engine. By the appearance of the rod, you can determine the class of the tool, if the bar is curved. this is convenient for work, but in this case the drive is a flexible shaft, which cannot convey a large torque. If the bar is straight, a hard metal rod passes inside, it can transmit more reliably and torque. Therefore, a professional tool always has straight rods.

Reducer device

In order to better understand what lubricant is needed for your trimmer for grass, you need to figure out how the gearbox works, what components it consists of and analyze the working conditions of these nodes.

The trimmer gearbox for grass is usually located at the lower end of the drive shaft and serves for two main tasks:

• Transmission of the rotational movement of this shaft Bobin with a fishing line or a mill
• Increasing the torque of motorcycles by reducing the number of revolutions

Typically, the gearbox consists of the body itself, shafts, several bearings, one or more cylindrical and conical gears, seals (see. a photo).

The drive shaft at high speed is rotated by the leading shaft with the lead gear. The driven gear has more teeth and therefore the driven shaft rotates slower. But the torque is increasing on it. Each shaft is installed in the housing on two bearings.

When the trimmer for the grass for the gearbox, vibrations and shocks associated with a change in resistance to rotation from the interaction of the cutting node with grass, and shrubs are transmitted. Grass or dirt sticking to knives also with a high constantly changing speed of rotation contribute to the occurrence of dynamic vibrations and vibrations.

In general, we can say that the reducer nodes operate at a high speed of rotation and dynamic loads. At the same time, high contact voltages occur on the teeth of the gears, bearings experience transverse vibrations.

Temperature regimes are medium, since the tool is designed to mow grass, and this work is usually performed in the summer, at positive temperatures. As a result of friction, the nodes of the gearbox are heated, but excessive heat is removed by the lubrication and cooling of the gearbox body with atmospheric air.

Strong heating is a phenomenon uncharacteristic for the gearbox and indicates the need to repair the node or its lubrication.

How to choose a lubricant

During operation, the components of the mechanism are loaded with contact efforts on the teeth, resistance reactions when garbage enters, as well as dynamic and shock loads. Depending on the features of the load, you should choose how to lubricate the gearbox of the trimmer for grass.

When selecting, the following factors should be taken into account:

• manufacturer’s brand;
• the viscosity of the lubricant (the selection of this parameter depends on the rotating moment of the shaft);
• adhesion to the surface of the parts of the node;
• The intensity of lubrication consumption (the ambient temperature should be taken into account, type and volume of work).

In the absence of the necessary lubricant, you can use the universal. The latter must contain some components:

• anti.sympathetic additives (without toxic lead);
• highly purification mineral oils (inorganic);
• solid lubrices with graphite or disulfide molybdenum.

Features of different types of gearboxes

Electro and benzos manufacturers install various models of gearboxes on their equipment. Usually they differ from each other in the shape and dimensions of the seat, which is performed in the form of a circle (popular diameter. 24, 25.5 and 26mm), square or sprocket.

Another difference between the gearboxes of Chinese and European brands are types of transmissions. They are conical, worm, spiroid, combined, wave, planetary, cylindrical. Typically, worm gearboxes are used on benzocoses.

Device, functions

The motorcosa gearbox transfers torque from the motor to the working (cutting) parts of the device.

This function is provided by the internal structure of the gearbox, which is a system of gears that lower or increase the speed of rotation of parts.

Gearboxes used for personal plots are:

• wave;
• cylindrical;
• spiroid;
• conical;
• planetary;
• worm;
• combined.

This classification is based on the type of traction characteristic, namely the mechanical transmission of torque.

The gearboxes also differ in the form and dimensions of the landing hole: it can be square, round or starry. Of course, the most common gearboxes with a round landing place. At the location, the gearbox can be lower or upper.

For the normal operation of the mechanism, the lack of mechanical damage to the parts of the gearbox and maintaining a certain temperature regime is necessary. Any cracks, chips and overheating will lead to a malfunction and stopping of the lawn mower/trimmer for grass, which, in turn, will require the renovation of the gearbox. Regular lubrication of the mechanism can significantly reduce the risk of such problems and increase the life of a trimmer for grass.

Characteristics and features of lubricants for bells

When servicing any manual tool, where there are mobile parts, a lubricant is used that has the following characteristics and features:

• It should not have solid particles that can cause painting mobile parts of the mechanism.
• The temperature at which the lubricant becomes liquid, should be more than 120 degrees.
• Oil should not absorb moisture, must form a strong film that protects the parts from corrosion.
• And also, most importantly, the oil should be such a viscosity that he has the opportunity to stay on mobile details.

The consistency or viscosity of the lubricant is divided according to NLGI (National Lubricating Grease Institute), while in certain cases it is necessary to use the oil of a certain density. The viscosity of the oil is selected depending on the speed of rotation of the gearbox, the higher it is, the more liquid should be oil. So, depending on the tool, viscosity is selected:

• Drills, peorators, jigsaws, where the gearbox has a low rotation speed. Lubrication with the NLGI-2 index which is soft.
• Light peorators and shock drills. Class NLGI-1, in consistency very soft.
• Corner grinder, circular saws, motorcycles. Class nlgi-0, half-liquid in consistency.
• Heavy peorators, junk hammers. Class nlgi-00, in consistency is liquid.

How to lubricate the gearbox of a trimmer for grass?

The lubrication of the gearbox is carried out by laying the lubricant in a special technological hole without dismantling the node.So, in order to lubricate a trimmer for grass, you need to perform a number of simple actions:

• Before starting work, we turn off the power tool from the network. In gasoline devices, in order to avoid leaks, it is advisable to drain gasoline (or during the work to ensure that the device does not turn over)
• With the help of a tool that is included in the supply of a trimmer for grass, it is necessary to turn out the cork in the gearbox body
• If we change the lubricant completely, then wash the gearbox. To do this, pour some cleaner into the case (white spite, gasoline, etc.), rinse the gearbox and drain. The procedure is repeated several times until completely cleaned
• We put a new lubricant in a gearbox. To do this, insert a tube or syringe into the hole and squeeze 2 5 ml of grease there
• We wrap the cork
• We turn the shaft several times manually, then turn on the motorcycle tank for a short time at low speeds without load, so that the lubricant is evenly distributed along the friction surfaces

Reducer device trimmer for grass

Regardless of the manufacturer and model, the modern trimmer for grass is equipped with a gearbox for changing the angle of mechanical energy between the drive shaft and the head with a fishing line. The most widespread in the benzocos were conical gears, since, unlike straight.tooth, gears with screw teeth are able to carry huge speeds, have a more smooth clutch and have increased bearing capacity.

In the duralumin case (1) there is a shaft-shuster (2) and a gear conical wheel (3), pressed on a driven shaft (4). To reduce friction forces during rotation, rolling bearings (5) are installed at the support points of the shafts. Any gear gear is a highly loaded mechanism, whose duration and reliability of which depends primarily on the lubricant. Therefore, in addition to the main components of the trimmer gearbox, the trimmer reducer includes a special hole, through which you can grease bearings and gears without disassembling the assembly.

Performance

The choice of a benzocosille, or they are also called by the name of the cutting device. trimmers for grass, should be made from the volume of work, the more processed area, the more power is needed. For small plots, household are chosen, trimmers for middle.class grass are suitable for garden areas, for pumping a large area, especially if there are weeds or shrub thickets, a powerful professional tool is needed. park. Such a technique has an engine power of more than 2.5 liters.With. And it can work 3-4 hours a day.

The lawn mower requires the first prevention immediately after the purchase, because the manufacturer lays a small amount of grease. If a trimmer for grass performs a small amount of work, then lubricate the device at the beginning and at the end of the season. If the lawn mower works a lot, then we lubricate after 30-55 hours of operation.

The main faults include the most common options.

• Strong heating. This suggests that the lubricant has ended. It is necessary to add lubricating materials and run them in weak mode.
• Gearbox vibrates or stagger. This situation indicates mechanical damage.
• There is a knock. Then the bearing collapsed, the boot was damaged.
• If the knife of the trimmer for the grass is jammed, then the mechanism should be changed completely.

How to lubricate the gearbox gearboxes, see further.

Performance

The choice of a benzocosille, or they are also called by the name of the cutting device. trimmers for grass, should be made from the volume of work, the more processed area, the more power is needed. For small plots, household are chosen, trimmers for middle.class grass are suitable for garden areas, for pumping a large area, especially if there are weeds or shrub thickets, a powerful professional tool is needed. park. Such a technique has an engine power of more than 2.5 liters.With. And it can work 3-4 hours a day.

The trimmer gearbox for grass includes 2 shafts. the first has a drive from the engine, and the other is used to rotate the cutting blade Motokos or Electimimer fishing line. Conical gears are made as a whole with a shaft, but there are versions with the installation of a separate part on the slotted connection. Models with different angles of the location of the teeth are available, which depends on the layout of the tool. There are modifications of gearboxes with worm, planetary or mixed (multi.stage) gears.

Shafts are installed on rolling bearings, which are closed with protective washers. Details ensure the preservation of lubricant and prevent dirt from getting on the workplace. The bearings are installed in the gearbox body made of aluminum alloy. The unit unit, consists of 2 symmetrical halves, which are interconnected by screws. To ensure the tightness of the joint, a separate gasket or sealant is used.

The lower gearbox for a trimmer for grass is installed on the tool through the planting nest. There are several varieties of the joint that differ in shape.

The most widespread are round seats with a diameter of 24 or 26 mm.

There are modifications of the tool with a square or multifaceted joint of elements. The transmission of torque is carried out through the slotting connection.

User reviews about lubricants

Experts advise using only original materials, the characteristics of which meet the requirements of the manufacturer. If there are no one, you should clarify how to lubricate the gearbox of the trimmer for the grass. Experienced users do not advise using solidol, because this material is not suitable for the temperature and speed characteristics of the node, as well as in consistency. Also, the above material does not have anti.intelligence properties.

The range of operating temperatures of the solidol is from minus 40 to 65 degrees, but even with such parameters in the process of heating, the density of the material increases, and the lubricant itself becomes rough. With emergency need to process the tool, you can use Litol-24.