How to disassemble the grass trimmer bobbin

How to remove the mowing head from the electric trimmer

Before proceeding to the process of replacing the cord, trimmer users have the need to remove and disassemble the spool. Let’s see how to do it.

Grass trimmer mowing head consists of several parts: the cover, the spring (not in all models), the bobbin with cord and the cover.

There are 2 types of mowing head mounting most often used in trimmers.

Option

To remove the grass trimmer head, you need to disassemble it completely.

• To remove the cover that covers the inside of the head, you must press the latches (latches) located on both sides.
• When you remove the cover, you will see the bobbin, which must be removed from the bobbin case. Some spools have a spring under the bobbin, which must be carefully removed so as not to lose it in the grass.

After removing the bobbin, in the center of the housing you will see a screw with a slot for a Phillips or flat screwdriver. There might be a hexagonal bolt or a star head.

Option

This option involves screwing the head to the gearbox shaft. To remove it, you need to lock the shaft. To do this, such trimmers, for example, in devices Huter and Champion, provides a hole through which you can insert a thin screwdriver or a metal rod.

So, to remove the bobbin, follow 2 simple steps.

• Insert a screwdriver into the hole and lock the shaft.
• Take hold of the trimmer head body and start twisting it clockwise. The reason for this is that the thread on the shaft is tapped to the left.

The main faults of the spool

Users of electric trimmers and lawnmowers often encounter problems related to the semi-automatic mowing head. Faults in the spool can be as follows:

the trimmer line does not extend automatically

If the grass trimmer spool button lightly strikes the ground, if the trimmer line does not extend, the reasons may be.

Variant 1. jamming has occurred, t.е. clamping the filament between coils. This problem usually occurs if the user has wound the trimmer line unevenly, with overlapping coils, or with insufficient tension on the reel. In the latter case, when you rotate the mowing head at high speed under the influence of centrifugal force, the cord begins to tighten, resulting in a possible inter-scroll clamping line. To solve the problem you have to disassemble the spool of your trimmer and rewind the line correctly, i.e. with even turns and good tension.

Variant 2. too short ends protrude from the head. the trimmer line may not come out when hitting the ground if its ends sticking out of the head are not long enough (short). In this case the centrifugal force is not enough to pull the trimmer line. It is therefore necessary to stop the machine (turn off the engine or unplug the electric grass trimmer) and pull the trimmer line manually by pushing the button.

Variant 3. trimmer line is soldered inside the mowing head. This causes the reel to stall and not spin when the button is pressed. this is mainly due to: poor quality filament, overheating of the reel during extended use, the line hitting hard objects.

• In the first case third-party cord can be made of low-quality and fusible materials that cannot withstand the mechanical and thermal load. Therefore, preference should be given to “brand-name” lines.
• But if you have purchased a line of unknown quality for your trimmer and it often seals during operation, you can follow the example of some users who, after filling the cord into the reel, moisten it with either silicone grease (from a spray bottle) or mineral oil. This procedure greatly reduces the chance of the line strands sticking together.
• Also, the line for the trimmer may melt if during mowing it hits a hard object (a rock, a fence, a dry branch, etc.).д.). This causes the line to stretch slightly and pull back into the head at high speed. The friction heats the filament and causes it to stick together. The only thing you can do to fix this malfunction is to open the grass trimmer reel and rewind the trimmer line.

The filament lengthens spontaneously

There are situations when a grass trimmer user notices very quick line drainage. At the same time, he never hit the button on the ground to extend the line. The reason that the line for the trimmer unintentionally lengthens, being cut on a special knife on the hood of the machine, can be the absence of a spring in the mowing head. Often beginner users of mowers, trying to load line for trimmer into spool, forget to set the spring in the head, or lose it altogether when opening the cover, and later they don’t even suspect about its existence.

Also, the line for the trimmer can be extended without using the button, if the spring is loose. If checking of the spring confirms this fact, it is necessary to put some washers under it in order to strengthen its clamping properties.

How to remove the spool and replace the line for trimmer

Owners of trimmers, mainly beginners, get confused, bordering on panic, when there is a need to change the cutting tool or line for a trimmer in the bobbin. Very often when trying to unscrew the mowing head, users simply cause the mowing head to fail, unaware that it unscrews in the opposite direction. To avoid this happening and if you need to replace the tool, we recommend that you read the step-by-step instructions below.

• Before inserting the brushcutter line into the reel, turn off the brushcutter engine or de-energize the electric grass trimmer to avoid injury from unintentional starting of the cutting attachment.
• Unscrew the head unit mounted on the gearbox shaft. In order to do this, the shaft must be secured by aligning the holes in the washer and in the shaft and inserting a metal rod or screwdriver.
• Unscrew the sleeve. Note that the thread on the shaft is left-handed. Therefore, it is necessary to twist the grass trimmer spool to the right, that is, clockwise.
• Disassemble the mowing head. Most of the time, the head cover is secured with clamps. To remove it, you will need to sink these clips into the body, pushing the edges of the cover off. If your trimmer has a semi-automatic mowing head that has a button on the bottom, you must disassemble the mowing head carefully, because you can lose the spring, which sometimes flies out when you remove the cover.
• Cut as much line as necessary. It is normally 5 meters long. Use only as much filament as is shown in the instruction manual for your power tool. Do not exceed the cord’s maximum diameter because it will stress the engine and increase gasoline consumption.
• Find the center of the cord by folding it in half. You will have a loop.
• There are special slots cut inside the reel (there may be holes). Install the loop of fishing line in this groove.
• Wind the line for the trimmer on the spool by turning it counterclockwise. Tuck the cord as evenly as possible, the coils should lie without overlapping and with good tension. When you have finished spooling, leave about 20cm of free fishing line, and secure the ends in the slots on the reel flanges.
• Assemble the mowing head. Before you finally assemble the head, remember to insert the spring and washer (if present). Insert the spool in the housing and thread the ends of the filament through the holes or eyelets.
• Put on the cover and secure it with the latches.
• Screw the nozzle back onto the reducer shaft, also securing it with a screwdriver. Screw the grass trimmer reel to the left (counterclockwise). arrows).

Types of trimmer heads

Also different device may have different grass mower heads: with automatic line feed, semi-automatic or manual. In the first case, in order to lengthen the working ends of the thread, you need to slightly reduce the revolutions. When you do this again, the line for the trimmer is extended automatically. For semi-automatic devices you need to press the special button on the bottom. Grass trimmer at the same time do not need to turn off. It is enough to simply knock the scythe on the ground. The most uncomfortable in the work are trimmers for grass with a manual filing string. To lengthen its working ends, the tool must be turned off and perform the operation manually.

There is also a spool with a line for the grass trimmer:

• Single string. suitable only for cosmetic trimming of the lawn;
• Two-string. used for more serious work on cleaning the site from the grass.

• It is necessary to cut a ring from thin, but durable plastic, and its inner diameter should be equal to the thickness of the core, on which the line for the trimmer is wound, and the outer diameter. the diameter of the spool.
• On the inside of the ring you need to make a small notch, through which the thread will be threaded.
• Then the ring is cut, put on the spool. And the place of the cut is glued with adhesive tape or soldered with a hot knife. This is it. each end of the line can now be wound onto its own part of the spool.

Prepare. remove and disassemble the bobbin

In most models of electric and gasoline trimmers to replace the line will need to remove the spool. With the FUBAG tool this stage is bypassed. To make sure that the instructions are universal, we’ll look at it in detail:

Screw in the shaft. Insert bobbin stopper into bobbin hole. It can be a thin screwdriver or a metal bar.

Unscrew bobbin case. In this example it is clockwise.

Unscrew the cover according to the direction indicated on the housing.

Finished the preparatory step. You can start winding up the line.

Method 2. how to put the trimmer line on the grass trimmer scythe with a description of the photo and video

The second method differs from the first in that not a single piece of equipment is loaded into the reel, but segments of two parts. This method is used by manufacturers, it is also suitable for those who have leftover material. The principle of how to insert two pieces of fishing line at the tip of the brush cutter is similar to the first method, and the following detailed instructions follow to confirm this:

• There are two levels of material lengths that can be used.
• One piece is taken, and the edge is bent into a clamping lever or hook, which will be used to secure the line for the trimmer
• The inside of the reel has holes in the form of a mounting bracket, which are there for some reason. If they aren’t there, the second option won’t work. The appearance of these brackets is shown in the photo below. Each staple is on its own half.
• The mower line clamp should catch on the bracket and make it twist in the direction of the arrow
• The tool is wound until there is a 10-15 cm section, which is fastened in the appropriate hole on the side of the tip
• Similarly, manipulating the other end of the mowing line
• The protrusions run into the holes in the head, and then, removing the equipment from the temporary fasteners in the coil, set the lid with latches

The above instructions on how to install the pomace in a lawn trimmer will not only help you correctly, but also quickly perform the replacement procedure. Assembling the grass trimmer reel, as mentioned above, can be done without removing the head, but in this case you will need to comfortably secure the tool. Video instructions are provided below.

Problems with the line

Users of trimmers, both gasoline and electronic, occasionally have problems with the cord. “Advanced” mower owners effortlessly manage the difficulties that have appeared, understanding why this happens, but for beginners. this is a miscommunication that has no optimal explanation. But in fact, everything is solved quite easily. The most frequent problems that happen to the fishing line are.

Cord doesn’t feed, spool doesn’t spin

The filament should be fed to the trimmer without stopping the machine. But if it does not come out, the prerequisites may be as follows:

• the line for the trimmer in the spool is wound incorrectly, so the latter does not rotate;
• the cord is wound unevenly and the thread can get caught between the coils (thread must be wound carefully, coil to coil, without skewing)
• very short ends of the filament come out of the holes, so that there is not enough centrifugal force to extract them, and the line for the trimmer is not fed (before starting the machine, it is always recommended to adjust the length of the cord, tightening it a little);
• the line for the trimmer is sticking (to be discussed further).

The filament for the trimmer is flying out

A precondition that the cord after starting the machine unwinds, can also be a loosening of the spring inside the head. In addition, there are cases when the mowing line breaks when the machine is turned on head

, and the spring that is installed in it is missing. Inexperienced users do not notice the absence of a spring and collect this unit without it. Because the cord does not hold, and under the influence of centrifugal force flies out.

Option

What to remove the head trimmer for grass, will need a complete disassembly.

• What to remove the cover that covers the inside of the head, you need to put pressure on the locks (latches) located on the 2 nd sides of her.
• When you remove the cover, you will see the bobbin, which must be removed from the housing. In some spools under the bobbin installed spring, which must be carefully removed so as not to lose it in the grass.
• after removing the bobbin, in the center of the body you will see a screw with a slot for a Phillips- or flat-blade screwdriver. It is possible that there may be a hex bolt or “star” bit.
• Using a screwdriver, selecting the correct bit (nozzle), you need to unscrew the screw (counterclockwise).
• After removing the fasteners, take hold of the body of the part and, rocking it in different directions, remove it from the gear shaft.

High cord consumption

The cords usually run out quickly if the mowing head is frequently bumped on the ground or pressed down hard. The spool is unlocked, and the line for the trimmer, extending, is cut with a knife. Another reason that quickly runs out of cord. it is incorrect operation of the unit with an automatic head: the user often resets the engine speed when mowing. But as we remember, the automatic head is arranged so that exactly at each decrease in speed a new portion of line is fed, because it is quickly consumed.

The filament can not be held

It can happen that the thread unwinds if the spring in the automatic head is loose. The line for the trimmer is being extended and cut continuously by the blade on the cover, that’s why the line is consumed more. To check this, remove the cover and turn the machine on. If the line for the trimmer “got”, it will be necessary to replace the spring.

Option

In this version, the head is screwed onto the gear shaft. To remove it, will be needed

fix this shaft. It is necessary to use a screwdriver and a metal screwdriver to screw the reducer shaft into the housing.

So, to remove the bobbin, do the 2 usual steps.

• Stick a screwdriver in the hole and lock the shaft.
• Take hold of the trimmer head and start twisting it clockwise. the thread on the shaft should be twisted in this direction because the thread on the shaft is to the left.

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Automatic line spool for grass trimmer

How to tuck the line for the trimmer into the grass trimmer reel? Video instruction

Warranty run out of the factory trimmer fill-up for grass trimmer will inevitably require a change of fishing line. Having a very tentative idea of how to tuck the line for the trimmer into the grass trimmer spool without the help of others, newcomers take on this case without any hunting. But with some abilities mastering this simple science is not difficult, and presented below a similar annotation will greatly facilitate the myth process.

Preliminary preparation

First of all, to wind the fishing line requires removing the spool (bobbin, bobbin) from the grass trimmer. certain actions will depend on the difficulty of configuration and the type of the product itself:

• Small electronic trimmers for grass with the working arrangement of the motor and spool at the bottom, usually have on both sides of the reel side buttons. At the same time pressing there the higher part of the spool together with the internal contents for winding the line is disconnected, although the lower part remains on the trimmer. It is best to disassemble the bobbin on a flat, smooth place so that the spring included in the design does not jump out and get lost;
• Electronic and gasoline grass trimmers with a curved bar without the ability to install a knife, you have a special reel with a wingnut: in similar designs, one hand should hold the bobbin in an immobile position, and the other counterclockwise to twist fixing the bobbin on the rod nut, wingnut. After loosening the nut the whole bobbin is removed.
• electronic and gasoline grass trimmers with the ability to install a knife on a straight shaft (nettle, STIHL grass trimmers) have a hole under the bobbin. To immobilize the bobbin, a screwdriver or other suitable object is inserted into the hole and a slow spinning motion achieves a reciprocal placement where the screwdriver goes into the hole, and the bobbin is fixed. After that the spool body is twisted clockwise (with the left thread) and removed from the grass trimmer.

For the second and third version of the coil, depending on the design, disassemble by different methods. In spools with a drum, the drum is unscrewed, in spools with latches, the latches-clamps are pressed and one part of the spool is released from the other. If the bobbin halves are threaded together, it is sufficient to turn them by hand in opposite directions until they are completely unthreaded.

What kind of line to choose for a trimmer to refuel the lawnmower

The thickness of the polyethylene thread depends on the model of equipment and varies from 1.2 to 4 mm. It can be:

• with a round section is the strongest material for mowing herbaceous plants;
• with curved section. used for mowing soft plants
• Twisted. used for thin grass;
• Professional type, not suitable for all models of equipment.

To change the line for the trimmer on the lawnmower, you need to buy a cutting thread, which will be ideal for this or that type of mower.

You can soak the thread in a basin of water for a few minutes to increase elasticity and strength.