How to properly install a disc on your grass trimmer

This attachment on your grass trimmer will allow you to mow tall, mature grass. The cost of components is about.

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Using a grass trimmer in dacha and homestead plots makes mowing the grass much easier and faster. However, it is important to choose the right “consumable” for an electric gasoline trimmer. To put it simply, what exactly will you cut the grass with: a cord (a special trimmer line) or a blade. A fishing line and a blade are both great for cutting in hard-to-reach places, but when a blade is more effective?

When to use a grass trimmer blade?

A fishing line is the most often used, because it is safer to operate and provides almost the same result when cutting the grass. But if you have to mow tall grass, you’ll always find that long stems will wind up on the spool or spindle where the grass trimmer head mounts. To avoid this, it is recommended to use a blade. cutter for grass trimmer.

Basic safety rules for using metal grass trimmer blades

Metal blade for grass trimmer is installed only on units with straight boom. This is due to the design of the tool. When the blade of grass (bushes, thin trees) bumps into an obstacle (usually a stone), it most often bounces back. to the side of the user. The distance from the head to human feet is safe enough for trimmers with a straight boom.

The experience of professionals and ordinary users showed that the shape of the blade is important only if you mow grass for the winter, such as hay for animals, because the three- and four-blade knives too shred the grass. But the quality and speed of the bevel at different blades is not significantly different.

Grass trimmer is a fairly common garden tool purchased for mowing grass. The thin line models are good for soft grass, but if you need to trim coarse growth and bushes you can’t do without a disc grass trimmer.

Benefits of disc trimmers

When you have to mow tall grass, it often gets tangled in the line and spool of the grass trimmer, causing you to stop work and use your hands to remove these tangle of grass. In addition, over time, the grass trimmer reel can break from it. When it comes to the cutting disc, it handles tall grass with ease.

The disc is also more effective when you need to mow dry grass, burdocks, bush and brushwood. The only thing the blade is afraid of is rocks. For haymaking, however, a disc for the grass trimmer is the perfect solution.

over, the metal discs do not wear out, so they do not need to be replaced, unlike the fishing line, which over time comes into disrepair.

Grass trimmer disc varieties

The disc for the grass trimmer can be made of different materials. And to determine which disc for the grass trimmer is better. metal or plastic, you need to determine what you will mow. For example, a plastic disc is designed for low and light grass, while a metal disc can easily cope with very thick and high grass, bushes, dry grass.

Hack a String Trimmer. this rips stuff up

Grass trimmer blades are available in 2, 3, or 4 cutting edges. Usually such accessories are included in the basic set of the tool of small and medium power. You can use it to tackle dense grass and small shrubs.

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On powerful and professional equipment set saw blades that have up to 80 teeth, and sometimes even hard-alloy (pobeditovye) inserts on the teeth. Such pobedite disc for the grass trimmer is rarely used in private households, it is mainly put on professional trimmers. It has a very long service life and is universally usable for both fresh grass and dry, impenetrable weeds.

The discs also differ in blade thickness, which can range from 1.3 to 4 mm. Thinner blades cut the grass cleanly, quickly and neatly, but they get blunted faster. The thickest blades do not wear out over a long time, but are best suited for overgrown growth and weeds.

Experience has shown that the most common blade shape for grass trimmers is round with tines on the circumference. its kind with 4 big teeth and a row of small ones between them is also a frequent choice. They are the most effective in helping to clean the area, they are easy to install on any trimmer models.

Setting the blade on the weed trimmer and following safety precautions

Once you have decided which disk to take for the trimmer for grass, you need to learn how to install it correctly. Initially, make sure that the seating hole on the disc was the right hole, otherwise the disc simply will not fit your trimmer. And even if you manage to fix it to the tool, the blade may come off during work and seriously injure you.

Usually, each manufacturer also makes the appropriate accessory for each model of equipment they produce, so choosing a blade should not be something very difficult. When you have mounted the disc, check that it is securely fastened.

If the disk is metal, it can be installed only on the grass trimmer with a flat bar, because this is due to the design of the unit. When mowing grass, bushes and thin trees, the disc will bounce back, that is, to your side, when it bumps into an obstacle (such as a rock). And when the bar is straight, the distance from the head to your feet is sufficient for your safety.

It’s summer time, and lawnmowers on private plots are habitually clattering. Great tool, powerful and mobile. With the gasoline grass trimmer you can cut the grass and get rid of dried weeds. But there are cases that the lawnmower does not start, working intermittently or not developing full power. Of course, there is no time to work here! And as they say, you pull the starter handle more than you mow.

Difficulties with start-up do not only occur with lawn trimmers that have seen a lot of use, but also with new ones. What to do in this situation? There is only one way out: to listen to expert advice and use their practical experience!

How to assemble a gasoline trimmer for grass: the sequence of operations and step by step video instructions

As a rule, the devices designed for grass mowing and others like them are quite cumbersome.

The vast majority of all types of trimmers are delivered unassembled, packed in a cardboard box, so before you start working such a machine must be assembled.

In addition, it is often necessary to assemble the grass trimmer after winter, because some owners disassemble this device so that it takes up less space during storage.

Features of brushcutter blades

Blade discs are available in plastic and metal, as well as in different shapes to perform a variety of tasks.

Plastic blades are used as an alternative to metal discs. They do not need to be fixed tightly in the head, and they rotate as a result of centrifugal force. The durability of plastic blades is high, so the service life is long enough.

For your information! The advantage of plastic discs is that, having hit an insurmountable obstacle, they bounce, and there is no re-contact.

Butterfly grass trimmer blade

This is the most popular knife on trimmers. I think this is because it is the cheapest, and almost all new Chinese trimmers for grass and brushcutters are equipped with it. Advantages of the blade for grass trimmer “butterfly”. cheap, lightweight, when one side gets blunt, you can reposition and mow the other side. Disadvantages of a butterfly grass trimmer blade. small diameter (low productivity due to the narrow working width of mowing), wide blade ends (low productivity due to the fact that the wide edges of the blade do not allow to easily penetrate the mass of grass for mowing, which does not allow the blade to move quickly in the grass), in a collision with a stump or concrete. the blade bends, in a collision with an iron fence post. it can break off a piece of blade. I want to tell you how I “resuscitated” a splintered bowie knife. Alien gasoline grass trimmer. In a box, among the junk, I found a knife for a grass trimmer “butterfly”. It was all rusty. Blades, in addition to being bent like the blades of an aircraft propeller, the corners are also pinched and bent from hitting something hard. The blades are not evenly worn (have different length, width and radius of curvature). But nothing to do, something to mow and I set out to restore it. Looking ahead to say that, yes, it worked, I restored this blade for grass trimmer. How to repair a grass trimmer blade: first I smoothed it with a hammer on an anvil. I had to ring it for a long time in the yard until the blade was perfectly flat (by eye). Then I ground the backs of the blades on an emery wheel (they were of different length and roundness), using a ruler, so the distance from the edge of the hole to the edge of each blade was exactly the same (in my case. 10,5 cm). Then I sharpened the working edges. And that’s all, the blade for the grass trimmer “butterfly” is ready to work again!

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What to do if the blade is broken?

Or it became worthless because of the long (improper) use. Replacement discs are always available in sufficient quantity in specialized stores, it is not difficult to find them. You can choose and put exactly the same one, or choose something with different characteristics. Which knives are better can be understood from the information provided above and by consulting with a manager when making a purchase. They are usually up to date and well-versed in the issue.

Since it’s not a problem to change the discs, it can be done at home, by yourself, and fairly quickly. All you have to do is follow the simple instructions. If you are changing the head outside, spread out a piece of tarpaulin or an old blanket. This is so you can easily see the small tool or nut if you drop it.

Advantages and disadvantages of the toothed disc

Metal toothed discs are circular in shape, with multiple teeth along the edges. The teeth themselves can be of different types, shapes and sizes. The more teeth, the better the device does its job. And the tasks of the toothed type include mowing dense thickets and even small trees. The advantages of such parts include the fact that the grass trimmer with them picks up speed faster. At the same time, the moment of inertia also increases, which negatively affects the driving device, and it fails faster, since the motor overheats and often stops.

This type is also divided into two types. peorized, that is, with holes in the disc itself, and the usual monolithic. The first ones do an excellent job, but have a high price. The latter are much cheaper, but have a significant disadvantage. their weight. Because of the monolithic metal construction, it is not recommended to put them on grass trimmers with an engine capacity of less than 30 cm3. the mechanism simply will not take the load out.

Assembling a grass trimmer by Steps

Fixing the tool handle

Unscrew the thumbscrew 2. Remove the top cover of the fastener

To adjust the handle, loosen the thumbturn and move it. Then fasten the screw.

FUBAG electric trimmers equipped with rubberized handles, which increases the convenience and safety of use. They allow the tool to be held securely, even in wet hands.

Installing the hard cover

Align holes in the carrying guard and attachment bracket.

Fasten the blade on the bar with screws and washers with the included wrench.

On this model, the shroud is secured with metal plates on both sides. This guarantees additional reliability and durability of the grass trimmer.

The hood itself is made of dense but flexible plastic. This material is sure not to break off when struck against small obstacles. It is advisable to take note of this if you are just going to Choose an electric grass trimmer or a gasoline trimmer.

Put on shoulder strap

One of the easiest manipulations in the assembly of the electric trimmer. Many people will understand how to attach a shoulder strap intuitively. For those who aren’t sure, we decided to add a few important points to the instructions:

install, disc, your, grass, trimmer

Connecting the carabiner to the strap ring 2. Adjust the position of the attachment ring on the boom 3. Fix the ring with the fixing screw

Install the spool of fishing line

First align the hole on the washer with the hole in the gear cup and secure with a special pin.

Unscrew the fastening nut from the hub clockwise. 3. Removing the cup from the shaft and the pressure washer

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Screw the spool of line counterclockwise until it stops, holding the rod.

When choosing a grass trimmer, you should take into account the quality of the bobbin from the kit. Often it is the spool that becomes the subject of savings to reduce the overall price of the product. How to find the flaw? A good bobbin is a quality plastic, easy to open and allows you to tuck in the line without much difficulty.

What knives to put on the electric and lawnmower

Before buying and installing a knife on a brushcutter, let’s find out what they are and when they are used. Today, manufacturers offer the consumer a large number of types of these consumables. In general, the entire cutting tool for mowing grass can be classified:

The main material for the manufacture of trimmer knives can be plastic or metal. The use of such expendable elements largely depends on two parameters:

install, disc, your, grass, trimmer

For safety reasons, manufacturers do not recommend putting on electric grass trimmers steel knives. Almost all battery- and cordless brushcutters are equipped with plastic blades. Depending on the manufacturer, they may be of solid disc design, with several blades, or in the form of a special mowing head with removable plastic blades.

Straight shaft in a gasoline grass trimmer and curved shaft in an electric one

To put a metal blade on the electric trimmer for grass does not allow its design features.

  • Curved boom of the machine reduces the distance from the working part of the machine to the mower’s legs. In case the blades collide with a rock or other hard object, the grass trimmer swings back to your feet.
  • High torque, which we mentioned above, in case of collision of the metal blade with a solid object, transmits a heavy load on the flexible shaft of grass trimmer and its engine. What causes their premature failure.
  • The handle of an electric mower most often does not have a limiting strip that acts as a stop. That does not exclude foot injuries.

Exactly these features make it possible to use exclusively plastic blades on electric-powered trimmers. When the blades collide with an obstacle, they collapse, thereby protecting the mower’s legs from possible injury.

Plastic blades handle overgrown and dry grass. They are good for mowing nettles and burdock stems.

Only gasoline-powered trimmers use metal blades because of their design features.

  • Straight boom design provides more legroom for improved safety.
  • Comfortable U-shaped and J-shaped handles let you hold the tool firmly. D-handles of petrol trimmers are equipped with a limiter that rests against the leg of the trimmer to prevent the head from getting too close to the legs when the cutting blade hits a hard obstacle.
  • The clutch of the gasoline engine allows a smooth acceleration to the optimum speed. And when the blade hits a hard surface, it can absorb some of the impact.

So petrol grass trimmers with a metal blade are best used on larger areas. They not only deal with tall rough grass, weeds, burdocks and nettles, but also with shrubs and young trees.

The shape of the blade on the disc trimmer for grass in no way affects the quality of work performed. They do not affect the speed. triangular, trapezoidal, rectangular shapes are all a marketing ploy by the manufacturers.

If you are planning to make hay, it is best to use a brushcutter with more blades. Pay attention to discs with eight teeth or discs with four large blades and four additional. Two or three blade blades would shred the grass very hard.

Algorithm of installation of the blade on the grass trimmer

Change the blade on the trimmer is simple enough. The manufacturers include a wrench for removing the cutting attachment (bobbin with a fishing line) and a pin designed to lock the gearbox. To change the disc, you need to do the following steps:

  • Remove the blade guard, which performs a protective function;
  • Insert the pin in the alignment holes located on the shaft and the gearbox and thus lock the drive;
  • if a bobbin with a fishing line is installed, you should unscrew it clockwise and find a nut to screw the blade;

A detailed algorithm for installing the blade on the grass trimmer is demonstrated in the video below.

Modern grass trimmers, such as those from. easy in service. Changing the cutting parts yourself shouldn’t be too difficult.

At work, it is necessary to pay attention to safety in order not to cut yourself.