Gear lubrication for grass trimmer

How and what to grease the shafts in the brushcutter boom

Many new brushcutters, even the assembled models that are sold as a whole, do not have lubrication on the shaft of the cutter bar. As a consequence, it gets hot, wears out, to the sound of a running motor gradually adds a slight whistling noise and vibration. To protect the machinery from premature wear, it is enough to take 10 minutes and just lubricate the shaft.

Materials:

First you need to disassemble the bar. With a regular lawnmower, this is done by simply disconnecting it from the upper and lower gears.

If the grasshopper has a collapsible two-piece boom, this is even easier. It is only necessary to remove the coupling in the center and separate the halves.

If the grasshopper has already been in operation, you will notice that the shaft is scuffed from the centering bushings when you examine the shaft, or shafts if it is a collapsible grasshopper. These are the places that need to be lubricated.

Squeeze a small amount of grease onto a rag or fingers and work the shaft without skipping. It is applied in a thin layer, but everywhere. You need to pay special attention to the splines, because they are under the highest load, especially when the grasshopper blade hits rocks and other objects.

Insert the lubricated shaft back into the tripod with gentle cranking. Part of the excess lubricant thus remains on the centering bushes where it should be. Rotating will also help the splines get into their seats on the gears.

If you service a straight mower with a non-disassembled boom, it is simply reattached to the gears. In the case of a two-piece boom, the short shafts are each inserted into their own halves. Then the joints are joined together in the center. If their splines don’t get in, you can just twist the bottom gearbox by hand. Then the docked boom is clamped back together with the coupling.

If the mower is used infrequently, this boom maintenance should be done every season. The applied CV joint lubricant is heat resistant and does not drip oil for long hours of grass cutter operation. The same compound can also be used to lubricate the gears. It can be squeezed into them with a syringe if the tube does not have a spout. The frequency of lubrication of gearboxes is higher than that of the shaft. Usually manufacturers recommend doing this every 5 moto-hours.

How to lubricate the gearbox of brushcutter in a simple way

How to correctly lubricate a brushcutter gearbox? Many trimmer users do not attach importance to overheating of the gearbox of the mowing head. And, of course, in case of a breakdown immediately run to a repair shop. To save time and money on repairs, it’s enough to lubricate the gearbox before the season and forget about unnecessary expenses.The gearbox. One of the most loaded parts in this device and quite often fails. That’s why it definitely needs periodic servicing.

We need

Take a syringe, temporarily remove the piston from it. We put grease in the cylinder. Usually this amount is 5-10 grams (more exact amount is written in the manual on the brushcutter).

Don’t be lazy to spend a minute or two after buying a brushcutter and before the mowing season to oil this important assembly. And your tool will always be ready to work at any time and will last for many, many years.

Removing and lubricating the lower shaft of the lawnmower

To remove the shaft from the lower part of the rod first remove the reel gearbox.

Grass trimmer bottom gear PRORAB-8406

  • Unscrew the central fixing screw completely. On the back side of the lower clamping screw, loosen the nut and unscrew the screw completely to disconnect the reel gearbox from the protective cover.
  • Loosen the upper clamping screw and remove the lower part of the boom from the reel gear housing. Remove the lower shaft from the gearbox side of the boom.
  • clean shaft from dirt and grease it with grease for joints or lithol-24, not forgetting to clean and grease coupling (bushing) with splines in reducer.
  • Place the shaft in the boom, and the rod in the lower gear of lawnmower and align the hole on the boom with the hole for the central screw. Screw in the central retaining screw. Next, tighten the lower screw, clamp the lower part of the boom to the gear housing with the upper and lower screws, and tighten the nut on the back of the lower screw.
  • Add 20-30 ml of grease to the reel gearbox through the hole covered by the screw on the right side of the picture.

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In the operation manual for gasoline grass trimmer PRORAB 8405M, 8406M it is recommended to lubricate gearbox with solidol or its analogues, in extreme cases it is recommended to fill it with liquid motor oil. Excess oil will leak out as the gearbox has no seals.

In the PRORAB 8402P, 8403P, 8405P, 8406P gasoline grass trimmer user manual it is written that two-stroke engine oil may be used as a lubricant for the gearbox. No mention of solidol or its analogues.

To save yourself the hassle, lubricate the lower gear of your lawnmower with the same grease as the shaft of the boom, or fill it with engine oil.

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At times during intensive mowing, the grass trimmer begins to grind and make unpleasant noises that indicate a lack of gearbox lubrication. It is considered the most heavily loaded component, and therefore will wear out the fastest. If it is not lubricated in time, the drive shaft can soon jam!

Lubricate your lawn mower, brushcutter: boom, drive shaft and other parts

The drive shaft, which is inside the boom, transmits rotational movements from the engine to the gearbox of the grass trimmer, and that, in turn, to the knife or fishing line (depending on the type of cutting tackle of your unit). All of these elements, including the shaft, also require a lubricant to help prevent premature wear, breakage, occurrence of friction, grinding, overheating or breakage. It is essential to lubricate your lawnmower before winter storage and also as needed when parts make such a “request”. A few nuances in the implementation of the procedure:

  • It is not necessary to lubricate the rod, because the shaft itself is lubricated, which rotates inside the part and some of the lubricant remains on its inner walls;
  • Every grasshopper needs to be lubricated, without exception, and the amount of product will tell you the tool’s instruction manual;
  • Do not forget that the grass trimmer also has an upper gearbox, which also needs to be lubricated;
  • the shaft is lubricated by filling in the small channels at the shaft end because these channels make contact with the gears inside the gearbox
  • How to grease a brushcutter. choose a special grease from the “KosiKosa” specialty store, and then your tool will always be functional and free from overheating.

Gear lubricant is listed in the service catalog as a separate product. Order it at a low price and give your gearbox a long life!

How to lubricate the gearbox of grass trimmer or brushcutter: proper care for garden tools | (Photo Video)

Many trimmer users do not pay much attention to maintenance of their tools. This applies in particular to the gearbox on a brushcutter. Gear unit may become hot.

During long hours of using a brushcutter there are regular overheating of the gearbox, which leads to its breakdowns. Gearbox failure makes the tool unserviceable and must be repaired.

Gearbox repair is a costly event, so it is recommended not to bring the tool to such a state. The main reason for gearbox overheating and failure is the lack of lubrication.

The article tells how to properly lubricate the gearbox of grass trimmer to avoid its breakdowns.

Tools and materials required

The following tools and materials are needed to maintain the gearbox:

Hexagonal key for opening the lubrication hole in the gearbox

Usually, such a wrench is included with a brushcutter or trimmer.

The next tool is a standard 10 ml medical syringe. The grease can only be injected with a grease gun.

We recommend that you use the brushcutter manufacturer’s original grease. As a last resort, you can use any rotary gear lubricant, such as Lithol 24.

Action Open gearbox

To access the gearbox you need to open it. This is quite easy to do. unscrew the gearbox bolt with an Allen key. The bolt for all brushcutters is in the same place, near the tool.

Action Filling the syringe with oil

Diameter of grease tube does not match that of the gearbox

To get the grease into the gearbox without any problems, you need a grease gun.

Next, fill the grease gun with grease from the grease tube.

Then put the piston back in the syringe. The grease gun is ready for filling the reducer with grease.

Procedure Filling the reducer with grease

The syringe is inserted into the reducer bore

First put a grease gun into the hole in the gearbox.

Squeezing a little grease into the gearbox and turn it about a quarter turn

Then squeeze some grease into the gearbox and turn it a quarter turn or so.

Once all grease has been squeezed out, the process is complete

Small amounts of grease are applied. After each lubrication turn the gearbox by 1/3. 1/4 turn. It is desirable to choose the amount of grease at each filling so that the gearbox makes a full turn during the greasing process.

Action Sealing the gearbox

After the gearbox is filled with grease, tighten the bolt on the gearbox and clamp it well.

How to lubricate the gearbox of a brushcutter (easiest way)

How to lubricate the gearbox of grass trimmer or brushcutter: proper maintenance of garden tools | (Photo Video)

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Gearbox for grass trimmer

Gearbox for grass trimmer. the module responsible for torque in the unit. Gasoline lawnmower copes with a lot of work. But it needs careful care, including proper and timely lubrication of the gearbox.

A reduction reducer runs on one or more gears rotating at high speed. The mechanism is called demultiplier, which converts the angular velocity of the output shaft into its reduced revolutions.

Depending on the type of gears, there are several types of reducers:

  • Cylindrical with toothed cylinders;
  • Planetary. the shafts are placed coaxially;
  • Worm gears. transmission through a working screw;
  • Conical. the shafts are crossed;
  • Wave gearboxes;
  • Spiroids;
  • Combined.

The machine can only work efficiently if it is operated at optimum temperature. Even small irregularities or overheating can lead to parts failure. Proper care is ensured by gear lubrication of the grass trimmer.

gear, lubrication, grass, trimmer

What is the right lubricant for the grass trimmer gearbox?

Gear teeth are under constant strain during operation. Trimmer gear lubricant must be matched to the individual parameters of the machine used.

Factors to consider

  • Type. Most brands offer lubricants from their own production or give recommendations on suitable lubricant compounds;
  • Viscosity. There are three basic groups. highly viscous, plastic compounds for universal use and solid compounds that soften during operation.
  • Lubricant consumption. Users often rely on personal experience and expert advice about the period between oilings. Temperature range is also important. Optimum working temperature is 40° C.

The gearbox can run on a lubricant composition with the following components:

  • Antiwear additives without toxic lead;
  • Graphite or molybdenum disulfide in solid lubricants;
  • Mineral (inorganic) oils with high purity.

The list of optimum by all parameters includes numerous lithium greases of foreign domestic production. Do not exclude the brands that are recommended by the manufacturer of the lawnmower.

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How to properly lubricate?

Lubricating the grass trimmer gearbox is not difficult if you follow some simple tips. There is a special hole on top of the body, which is plugged with a screw. It must be unscrewed and inject about two milliliters of grease into the hole through the spout on the tube. If the packaging is large, you can use a disposable medical syringe. Then screw it back on.

It is recommended that this procedure is repeated every 12 hours the brushcutter has been in operation. Lubrication is also changed or renewed during maintenance work (gear wheels are cleaned and flushed before the summer season), repairs to the machine, preparing the grass cutter for storage for the winter.

When a gearbox is disassembled, all elements must be cleaned of old grease, even if there are no signs of oxidation and dirt. After applying new lubricant, check the shaft by hand to be sure the lubricant is evenly distributed throughout the gearbox.

Which parts need more attention??

  • Flywheel. It is often covered with grass residue, which creates a certain amount of resistance during operation;
  • Start coil dog. When starting up the drive it touches the grooves on the flywheel provoking mechanical wear as well as mechanochemical corrosion due to the contact of different materials (aluminum flywheel, steel dog)
  • Bearings. The sealed walls can wear down and the grease residue starts to protrude. When loaded, the machine vibrates intensively. This is a problem with Chinese trimmers, because it often requires replacing the native bearing unit with a better quality.

Proper lubrication and timely oiling of the brushcutter gears will give the machine a long service life, high performance and excellent quality of work. It is important to follow the recommendations of the user manual and expert advice.

How to Lubricate the Grass Trimmer Shaft Video

Grass trimmer gear lubricant. With what and how to lubricate?

Sometimes in the midst of intensive mowing, your grass trimmer starts making unpleasant, grinding noises. Find out what the next lawnmower video on how to lubricate your grass trimmer disc shaft will be about. It’s the gearbox. the most heavily loaded component of the machine. that complains about the lack of lubrication. These “warnings” may soon be followed by jamming of the drive unit.

What kind of grease should be used for the gearbox of your grass trimmer??

During operation, the mechanical part of the grass trimmer is loaded with contact forces on the tines, reactions of resistance from grass clippings (sometimes with dirt), dynamic, shock loads due to constantly changing torque. Lubricant for the grass trimmer gearbox 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. Repair of grass trimmer Champion t 336 with their own hands lawnmower how to lubricate the shaft pcs video. Example. Each brand is not unreasonably focused on lubricants of its own making (we can talk about cheap Chinese products later). This applies to manufacturers such as Husqvarna, STIHL, Huter, Makita, etc. The exception is grass trimmers of domestic production: for example, Kalibr in the user’s manual does not indicate the brand of grease at all.
  • Viscosity of the grease. It is known that all lubricating compositions are divided into three groups. high viscosity (colloidal systems containing various additives), plastic compounds of universal use and solid lubricants that soften during operation.
  • Good adhesion to the surface of the gearbox parts, so that the lubricant is not squeezed out into the gaps or out of the unit.
  • Gears grease consumption rate. Here you have to rely on your own experience and recommendations of specialists, since some trimmer manufacturers, trusting in their own service centers, do not give any clear recommendations concerning the period of operation between two lubrications.

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

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Check. Are there any lubricants on your trimmer shafts? It’s probably dry!

It is believed that there is no universal grass trimmer gear lubricant, but this is not quite true. In fact, a suitable lubricant would be one that contains the following components:

  • Antiwear additives that do not contain toxic lead;
  • Solid greases with the presence of graphite or molybdenum disulfide (the latter is preferable, since the lubricating power is fully retained for a large range of shaft speeds);
  • Only mineral (inorganic!) highly refined oils.

Lithium greases Gear Grease OREGON or Champion EP-0, domestic compositions Oleo-Mas, Lithol meet the mentioned requirements to a full extent.24, or Azmol 158, as well as those recommended by the manufacturer of a particular model of grass trimmer.

How to lubricate the grass trimmer gearbox?

At the top of the body, where the gear unit is installed, there is a technological hole, which is plugged with a screw during the operation of the grass trimmer. This screw is unscrewed and 1,5 2 ml of grease is injected into the hole with the help of the spout available on the tube. If you have bought a different kind of grease, you can use an ordinary disposable syringe.

After that, the screw is installed in its original place. This procedure, regardless of user recommendations, should be performed every 10 15 hours of operation of the grass trimmer in working mode. Who wants to know.see the video on how to lubricate her shaft does not go in the boom. Other reasons to update or replace the gearbox lubricant are to perform minor routine works by yourself (e.g., cleaning and washing gear gears before the summer season), to repair the unit, to preserve the grass trimmer for the winter period, etc. д.

If a gear unit has been disassembled, it is advisable to completely remove the remains of previous lubricant from the surface of the parts, even if there are no signs of oxidation and contamination. And only then apply new grease. After applying lubricant it is recommended that the shaft be turned several times by hand to ensure even distribution of lubricant over all parts of the gearbox.

How oil affects the performance of a power tiller

Special attention should be paid to lubricating fluid, oil. It should be noted that the oil should be changed every 50 hours of operation of the power tiller. Also, do not overload the single axle tractor, as this may cause rapid wear of the equipment. Do not forget that it is undesirable to install additional blades with your own hands. Gear chains suffer from additional loads (rupture of bushings), after that chains start jumping. How to disassemble the gearbox of the grass trimmer, Petrol AL-KO Classic 4 66 lawnmower. With heavy side loads, the support washer quickly wears out, so the alignment of the two gears is lost, and the bushings fly out of the chain. The conclusion can be made as follows: you do not need to work at an angle with your power tiller, as opposed to a cleaner job, you will damage your vehicle, and you must be more careful to turn the single axle tractor when working.

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After the snow has melted with the first days of spring, the grass begins to emerge with a delicate green cover. However, just a few weeks later, all the bumps and irregularities become noticeable, the weeds start to rise above the lawn. From this point on, it’s time to fight for the beauty of your lawn. Of course, to control weeds you can use an ordinary scythe or sickle, but it’s long and labor-intensive, and the cut grass becomes ugly.

The process of greasing the gears

When lubricating the gearbox at the top of the grass trimmer with grease or thick grease, remove the housing cover and only then apply grease to its gears. But before that, the used lubricant is removed.

What kind of grease should be used for a grass trimmer gear?

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

The following factors are taken into account:

  • Manufacturer’s brand. Each brand is not unreasonably focused on lubricants of its own making (you can talk about cheap Chinese products later). This applies to manufacturers such as Husqvarna, STIHL, Huter, Makita, etc. The exception is grass trimmers of domestic production: for example, Kalibr in the user manual does not indicate the brand of grease at all.
  • Viscosity of lubricant. As you know, all lubricating compositions are divided into three groups. high-viscosity (colloidal systems containing various additives), plastic compounds of universal use and solid lubricants that soften during operation.
  • Good adhesion to the surface of the gearbox parts, as a result of which the lubricant is not squeezed out into the gaps or out of the unit.
  • Intensity of grease consumption by the gearbox. Here it is necessary to be guided by your own experience and recommendations of specialists, because some trimmer manufacturers, trusting in their own service centers, do not give any clear recommendations for the period of operation between two lubrications.

Maintenance of gasoline grass trimmer

Most brushcutters and trimmers have a flexible shaft. Its condition must be checked at least once every 50 operating hours. To perform this operation, you must remove the boom tip, pull out the shaft and inspect it, then lubricate.

For the care of the shaft, inexpensive materials are suitable, it is more difficult to pick them for the trimmer gearbox for grass. What to lubricate this mechanism. depends on the company-manufacturer of the tool. It is best to use materials that contain molybdenum disulfide. The latter provides smoothing and filling cracks in the working surface, so it is especially valued among users.

Important: using a lot of grease with high density leads to overheating of the mechanism, increased friction of working pairs and fuel consumption. That is why the material selection and preventive maintenance process should be done responsibly.

Starting the engine

Most mowers are equipped with a gasoline engine (ICE), it can be two-stroke and four-stroke, there is no particular difference. Four-stroke is more economical and powerful, but more difficult to maintain and more expensive to repair. Two-stroke is easier to maintain, cheaper, but it is low-power, consumes more fuel, has a dirtier and noisier exhaust. There are also combined engines. In addition to gasoline engines trimmers for grass can be equipped with electric motors, which are connected to the domestic network 220V long cable, but as a rule. it’s household appliances as. are tied to the power supply wires.

User feedback on lubricants

Experts advise to use only original materials, the characteristics of which meet the requirements of the manufacturer. If there are none, you should clarify what to lubricate the trimmer gearbox for grass. Experienced users do not recommend using solidol, because this material is not suitable for the temperature and speed characteristics of the node, as well as the consistency. Also the given material does not have antiwear properties.

The working temperature range of solidol. from minus 40 to 65 degrees, but even with such parameters in the process of heating, the density of the material increases, and the grease itself becomes coarse. If there is an emergency, “Lithol-24” may be used on the tool.

Maintenance of Gasoline Grass Trimmer

Most brushcutters and trimmers have a flexible shaft in their design. Check its condition at least once every 50 operating hours. To perform this operation, you must remove the boom tip, pull out the shaft and inspect it, then lubricate.

For the care of the shaft will be suitable for inexpensive materials, it is more difficult to find them for the gearbox trimmer for grass. What to lubricate this mechanism. depends on the company-manufacturer of the tool. It is best to use materials that contain molybdenum disulfide. The latter ensures smoothing and filling of cracks on the working surface, so it is especially valuable among users.

Important: using a lot of grease with high density leads to overheating of the mechanism, increased friction of working pairs and fuel consumption. Therefore the selection of materials and prophylaxis should be considered responsibly.