How to unscrew the coil from the trimmer

How does a line head work on a lawn mower why you need to know how it works

Depending on the manufacturer, the heads differ structurally not only externally, but also internally. Most drums have a pressure spring inside (semi-automatic and automatic). Above is an instruction on how to disassemble the trimmer head without a spring, i.e. on the head of the manual type. The principle of dismantling a semi-automatic head with a spring inside is almost identical to the instructions described above.

unscrew, coil, trimmer

The principle of operation of the semi-automatic trimmer coil is as follows:

  • Inside the head there is a coil, which is fitted on the slots, which prevent its free movement.
  • A spring acts on the coil, which presses it against the slots in the cover structure
  • A fishing line is wound on the tip, the length of which depends on the tool itself. Typically this length is between 1 and 4 meters.
  • During the performance of work, if it is necessary to increase the length of the line, the protruding part of the drum is pressed, whereby it disengages from the splines. In this case, the line is unwound from the drum, increasing in length
  • After releasing the required amount of fishing line, release the pressure and continue cutting the grass

The advantage of a tool with a line is that this consumable does not require sharpening, compared to metal discs. In addition, if a stone or a tree comes across on the way, the line simply breaks off, without adversely affecting the gearbox and engine of the tool, as is the case with metal cutting discs.

Knowing the design and device of the types of mowing or trimmer heads, it is necessary to go on to consider the process of threading the line into the trimmer spool. After all, it is this moment that causes difficulties for most owners of special tools.

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Now, having removed and disassembled the coil, we proceed, in fact, to winding.

A few tips for properly threading the string into the trimmer

  • If the coil allows you to wind fifteen meters of thread, then you should not wind so much, ten is enough, that is, if you fold it in two layers, you get five meters. With a different line capacity, you should use the same rule.
  • In the case when an ordinary round thread is used, it is better that it be 3.3 mm in diameter. If this is a curly fishing line, then its thickness should be less, for example, 3 mm.
  • It is better to wind both segments of the fishing line on the spool at once, and it is necessary to start from its bend. It is important not to overlap in the direction of the arrow. It is also important to be able to pull the thread perfectly. If the thread is over-tightened, then it can overlap. If not reached, it can twist. In order not to cut your hands on the curly thread yourself, you should wind it with gloves.
  • No need to leave the ends of the line long. This can cause it to curl.

Step-by-step instructions on how to wind the trimmer reel and lawn mowers

In order not to be mistaken with the choice of a suitable fishing line for your tool, you should first disassemble the head and look at the side wall of the reel. This information is usually presented on a tip, which will not allow you to make mistakes with the use of the appropriate equipment.

If there is information on the reel about the diameter of the line you can fill in, then this information can be clarified in the instructions. Having decided on the thickness or diameter of the rig, it remains to figure out how to charge it. There are two ways to do this, but not all of them are applicable. We will consider both methods in detail, and depending on which models of lawn mowers and trimmers you use, you decide on your own which option is suitable.

It is interesting! The principle of how to wind the line to guide lawn mowers is appropriate not only for autonomous gasoline units, but also for electric trimmers.

How to remove the spool from the trimmer and remove the line

Initially, remove the line from the trimmer spool before threading it into the trimmer spool. A reel or aiming device is a device that sits inside the mowing head, bobbin or drum. There are different types of heads (depending on the manufacturer), but the principle of replacing the line on the reel is the same for everyone. First of all, we will figure out how to remove the head from the tool, as well as how to get the drum and fishing line out of it.

It is interesting! The tooling can be changed directly on the tool, but if you are doing this for the first time, it is still recommended to remove the head and study the detailed winding process. After the technology has been mastered, you can perform replacement work on a trimmer lawn mower or lawn mower.

The instruction on how to unscrew the manual head on the trimmer is as follows:

  • Turn the tool upside down and, if necessary, clean it from dirt. With two fingers of one hand, grip the cover latches (on the mowing head), which are symmetrically positioned to each other. After lightly pressing them inward, remove the protective cover from the drum
  • Next, remove the line spool from the drum shaft. It is mounted on a shaft without fasteners, therefore it can be removed with one hand.
  • The main part of the drum is fixed with a screw, which must be unscrewed with a screwdriver with an appropriate tip or bit
  • To unscrew it, hold the drum base with one hand, and unscrew it counterclockwise with a screwdriver with the other.
  • After that, you can start dismantling. To do this, you do not need to pull it with all your strength, but by slightly shaking it to the sides, slowly disengage it from the metal shaft on which the drum is seated.
  • When reinstalling, fit the head into the square slots

This process is not difficult, and as you know, there is no need to dismantle the entire head if you know how the replacement is performed. When dismantling, consider the following nuances:

Knowing how to disassemble the drum, you should continue to figure out how to replace the trimmer line. The video below shows a detailed process on how to open the trimmer coil and disassemble it.

Features of the use of trimmers

A trimmer that mows grass with a fishing line can be used near: houses and other buildings, fences and hedges, trees and shrubs, flower beds and flower beds, row spacing in a garden plot.

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Such a convenient, and most importantly, effective device, like a trimmer, exists in several variations:

  • petrol;
  • rechargeable;
  • electric.

As the names suggest, trimmer types differ markedly from one another. But regardless of the type of this tool, a fishing line can be its cutting element. Of course, the line tucked into the trimmer reel is not endless. And sooner or later you will need to replace it with a new one.

Line consumption directly depends on the frequency of use of the device and the scale of the work performed. The more grass is cut and the more often it is trimmed with the trimmer, the more active the line is used in it. And, accordingly, the faster it will end. In this regard, the question arises: how to thread the line into the trimmer spool?

Not everyone knows the answer to this question. But the winding of the line on the reel plays an important role in the trimmer operation. For the device to function properly, it is very important to properly wind the new line onto the reel. How to change the line on the trimmer, and will be discussed in this article.

Method 2. how to properly put the line on the reel of lawn mowers with photo description and video

The second method differs from the first in that it is not a single piece of equipment that is charged into the coil, but segments from two parts. This method is used by manufacturers, and it is also suitable for those who have leftover material. The principle of how to insert two lengths of line into a lawn mower’s line is the same as with the first method, and to make sure of this, below are detailed instructions:

  • There are two equal length pieces of material that you can use.
  • One piece is taken, and the edge is bent in the form of a clamping bracket or hook, with which the fishing line will be secured
  • Inside the coil there are holes in the form of a bracket for fixing, which are there for a reason. If they are not there, then the second option will not work. The appearance of these brackets is shown in the photo below. Each bracket is in its own half
  • The brace of the fishing line should be hooked on the bracket, and wind it in observing the direction of the arrow
  • The rig is wound until a 10-15 cm segment remains, which is fixed in the corresponding hole on the side of the guide
  • Manipulations with the second end of the fishing line are carried out in the same way.
  • The protrusions are inserted into the holes of the head, and then, removing the equipment from the temporary fasteners in the coil, the cover with the latches is installed

The above instructions on how to install a fishing line in the lawnmower will help not only correctly, but also quickly make the replacement procedure. Assembling the trimmer coil, as mentioned above, can be done without removing the head, but in this case, you will need to conveniently fix the tool. Video instruction is presented below.

How to catch more fish?

  • One-string. In the modification of this trimmer there is only one working line. This unit is used mainly for small jobs, such as trimming the grass.
  • Two-stringed. They can be both automatic and automatic. Here the package includes two strings. This trimmer is used for mowing and clearing areas.

Instructions for correctly winding the cutting thread onto the trimmer spool:

  • First of all, you need to disassemble the head. To do this, press the latch and turn the cover to the side. Next, the spool is removed.
  • Measure out the required amount of cutting thread and insert it into the slot.
  • Wind the line on both sides in the direction of the arrow.
  • Leave the ends 15 cm long uncoiled.
  • These ends fit into opposite slots.
  • Then the ends are fixed in the hole on the head.
  • After that, the spool is carefully inserted into the body, for this you need to slightly press on it.
  • If necessary, you can pull the remaining ends of the thread out. To do this, you first need to pull one end of the thread, and then the other so that they can easily pass through the slots on the head.
  • Now you need to collect the grooves on the body and screw the cover.
  • Then press the spool and try to twist it all the way. If you hear a click, then the spool has clicked.
  • Next, you need to pull the free ends of the thread to the end.

How to properly wind the line around the spool of a single-barbed trimmer

Most often, a thread up to five meters long is used. The procedure consists of the following steps:

  • Bend the cord with a loop and insert into the groove of the head.
  • Wind the thread in the opposite direction to the markings on the body. They indicate the direction of movement of the head.
  • Leave the end of the thread up to fifteen centimeters free to increase centrifugal force.
  • Thread the free end through the spool outlet.
  • Assemble the trimmer head.

Things to consider when choosing a fishing line

It is important to choose the right material before inserting and locking the line into the detachable trimmer spool.

Rating of the best petrol trimmer models. A review of manufacturers and models, as well as useful tips from experts reviewed in this review, will help in a difficult choice among many device models.

How to quickly and easily remove the coil with your own hands

Before replacing the old line with a new one in the detachable trimmer spool, you must remove the head.

The process is completely simple, even beginners can do the job:

  • Remove the upper fixing cover.
  • Take out the removable spool.
  • Get the spring out, if any.
  • Unscrew the bolt with a screwdriver.
  • Remove the housing from the shaft.

By size

Before you wind the thread on the trimmer spool, you should pay attention to its size. Most often, a line with a cross section of 2 mm is used.

You can choose a suitable diameter in the following ways:

  • See the recommendations in the manufacturer’s instructions for the trimmer.
  • Manufacturers often apply cross-section information to the bobbin.
  • The cross-section of the cord must match the diameter of the reel hole.

Important! The thicker the thread is tucked in, the harder the grass it can cut.

How to wind the line correctly: replacement features depending on the type of removable trimmer coil

To figure out how to thread the line into the removable trimmer head, the following recommendations and video instructions will help.

What are the trimmers and features of their use

The trimmer is useful for mowing small or difficult areas, such as near hedges, between beds and along paths. Today, manufacturers produce a wide variety of gasoline, electric and battery models, which can be selected for any owner’s request.

A fishing line is used as a cutting element of the trimmer. In the process of work, sooner or later its length will end, and then the owner will have a question of how to properly replace and fix the thread tucked into a removable spool.

Auto feed trimmer: how to wind the line into the removable spool

In some models of trimmers, a reel is installed, in which the line is refueled automatically. It is enough for the owner to fix the ends in the head, after turning on the equipment, the mechanism will perform all the winding manipulations on its own.

You should know this! The strengths of the automatic trimmer head include the ease of winding. The disadvantages of such equipment are frequent breakdowns of a complex mechanism and high cost.

How to wind the line around the reel of the double barb trimmer

You can watch the video before work, and also take into account the following recommendations.

  • If there is only one track, both threads are wound parallel.
  • If there are two tracks, each piece is wound in a separate groove.
  • Wind the threads in the opposite direction to the rotation of the head.
  • The length of the free ends should not exceed fifteen centimeters.
  • Thread the ends into the outlet holes.
  • Assemble the head and check the trimmer performance.
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Advice! If the loose antennae are of different lengths, do not worry. During operation, excess ends will be cut off.

Winding the Line Correctly to the Trimmer Spool

How to wind the line into the trimmer?

When refueling the line for the first time, this process may seem quite laborious, but with time and dexterity, the task is solved much faster.

In order to refuel the line, you must:

  • Take the coil, unscrew its cap. On some spools, the thread is made to the left, so the lid must be unscrewed in the required direction.
  • Measure five meters of line;
  • Fold this segment in half, that is, determine where the middle is;
  • Next, place this middle of the line in a special hole on the reel;
  • Wind the line in the direction of the arrow;
  • If there are two places for winding, then the first part of the line should be wound on one half of the reel, and the second part on the other half;
  • Push both ends of the fishing line into the holes of the reel;
  • Screw on the lid.

How to remove the spool from the trimmer?

To change or wind the cutting thread on the spool, it must be removed.

The complexity of its removal depends on the model of the tool:

  • Low motor tool. The motor is almost at the ground here. To remove the coil, press the buttons on the side of the trimmer. After pressing these buttons, the body opens where the line spool is located.
  • Curved bar trimmer. Here it is necessary to turn a special lamb counterclockwise. Then the coil and the spring in it are removed.
  • Straight bar tool. The bar is held motionless with a screwdriver or other object. It is removed by turning it clockwise. Then the tool is disassembled into parts and the reel is taken out.

Line refueling:

  • If you use a tool with one tendril, you will need about four meters of thread. This thread is passed into a hole inside the spool, where it can be fixed. Next, one end of the line is directed in the direction of the arrow. Then the end of this thread is fixed in the groove, which is in the bobbin. This is to prevent the thread from unwinding when assembling the spool. If there are no grooves, you should hold the line with your hand and collect the bobbin.
  • If a tool with two antennae is used, then first check the number of grooves present.

If the reel is equipped with a semi-automatic mechanism, then the line is wound as follows:

  • The thread is threaded through the hole that is inside;
  • Fix the ends of the thread in the grooves on the body.
  • The coil is assembled and a special button is pressed;
  • After which the line itself begins to dangle in the right direction.

It should always be remembered that the cutting thread must be protected from hard things. This will extend its lifespan.

If you do not adhere to this rule, then you will have to often stop work, remove the spool and change the thread to a new one.

What line is used for the trimmer?

There are several types of fishing line:

  • The most durable is rounded;
  • For mowing soft vegetation. curly;
  • For mowing thin grass. serrated;
  • Special. fits certain trimmers.

The section of the cutting thread must match the vegetation to be cut.

If it is necessary to replace the fishing line, then it is necessary to select exactly the type that is recommended by the manufacturer of this particular trimmer model, that is, the thickness of the cutting thread should be suitable for the engine power and the size of the unit.

It is better to choose a specialized cutting thread. It is worth soaking the line for a while if you plan to replace it in the spool.

After soaking, it gains elasticity and becomes stronger.

The cutting thread can be made from different components. The most common among them is nylon.

This material is characterized by a high degree of wear resistance, the ability to withstand various temperatures and high loads.

Nylon line can be stored for a long time, it does not dry out and does not lose its strength.

Therefore, its service life can be quite long.

Lawn mower spools or heads have a different structure:

  • One-string. In the modification of such a trimmer, there is only one working line. This unit is used mainly for small jobs, such as trimming the grass.
  • Two-stringed. They can be both automatic and semi-automatic. The package here includes two strings. This trimmer is used for mowing and clearing areas.

Instructions for correctly winding the cutting thread onto the trimmer spool:

  • First of all, you need to disassemble the head. To do this, press the latch and turn the cover to the side. Next, the spool is removed.
  • Measure out the required amount of cutting thread and insert it into the slot.
  • Wind the line on both sides in the direction of the arrow.
  • Leave the ends 15 cm long uncoiled.
  • These ends fit into opposite slots.
  • Then the ends are fixed in the hole on the head.
  • After that, the spool is carefully inserted into the body, for this you need to slightly press on it.
  • If necessary, you can pull the remaining ends of the thread out. To do this, you first need to pull one end of the thread, and then the other so that they can easily pass through the slots on the head.
  • Now you need to collect the grooves on the body and screw the cover.
  • Then press the spool and try to twist it all the way. If you hear a click, then the spool has clicked.
  • Next, you need to pull the free ends of the thread to the end.

Threading the spools with thread of different types of bobbins

With two-string automatic heads:

  • First you need to press the clamp until you hear a click, remove the cover.
  • Rotate the spool carefully so that it can detach from the holder. Extract her.
  • Measure out two equal lengths of cutting thread. To make further work easier, the ends of the line must be cut off at an angle. Take one end and push it into the special hole in the coil. It can also be slots, grooves, clamps, etc.
  • Further, in the direction of the arrow, you need to wind the fishing line, and quite tightly and evenly. In a special eyelet on the reel, you need to fix the end of the line.
  • Subject the other half of the line to the same operation, only on the other half of the reel.
  • Next, install the coil into the trimmer head. And thread the rest of the line through the hole in the head.
  • Then carefully straighten the thread and close the lid. If the line turns out to be long, then it is better to cut off the excess. There should be about fifteen centimeters left on each side.

On the semi-automatic head:

Trimmer Clutch Removal

  • The thread is threaded through the hole that is inside;
  • Fix the ends of the thread in the grooves on the body.
  • The coil is assembled and a special button is pressed;
  • After which the line itself begins to dangle in the right direction.

It is necessary to very carefully and carefully thread the cutting thread into the unit, because not only the cleanliness of the garden area, but also personal safety depends on the correct winding of it.

How to remove the spool and replace the line

Trimmer owners, mostly beginners, find themselves in confusion, bordering on panic, when they need to change the cutting tool or line in the reel. Very often, when trying to unscrew the mowing head, users simply render it unusable, not suspecting that it is unscrewing in the opposite direction. To prevent this from happening, if you need to replace the tool, it is recommended that you read the step-by-step instructions below.

  • Stop the mowers engine or power off the trimmer before placing the line into the spool to avoid injury from accidental starting rotation of the cutting tool.
  • Unscrew the attachment attached to the gearbox shaft. To do this, the shaft must be fixed by aligning the holes on the washer and on the axle, and inserting a metal rod or screwdriver into them.
  • Unscrew the nozzle. You should be aware that the thread on the shaft is left-handed. Therefore, turn the trimmer coil to the right, that is, clockwise.
  • Disassemble the mowing head. Most often, the head cover is attached to the clips. To remove it, you will need to sink these latches into the case, squeezing the edges of the cover. If your trimmer has a semi-automatic mowing head with a button on the bottom, then the disassembly of the attachment should be done carefully, since you can lose the spring, which sometimes flies out when the cover is removed.
  • Cut off the required amount of line. Usually its length is 5 meters. Use a cord of the same diameter as indicated in the instructions for the tool. It is not recommended to exceed the maximum line diameter as this will result in increased engine load and higher gas mileage.
  • Find the midpoint of the line by folding it in half. You will have a loop.
  • Special grooves are cut inside the coil (there may be holes). Insert a loop of line into this groove.
  • Wind the line around the spool by turning it counterclockwise. It is necessary to fill in the cord as evenly as possible, the turns should lie down without overlap and with good tension. When the winding is finished, leave free ends of the line about 20 cm long and fix them in the grooves on the sides of the reel.
  • Assemble the mowing head. Be sure to insert the spring and washer (if equipped) before final assembly of the accessory. Place the spool in the body and thread the ends of the cord through the holes or lugs.
  • Put on the cover and secure it with the latches.
  • Screw the adapter back onto the gearbox shaft, also securing it with a screwdriver. You will need to twist the trimmer coil to the left (counter-clockwise).
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Major coil faults

Trimmer users and lawn mowers often face a problem with the semi-automatic mowing head. Coil malfunctions can be as follows:

  • the line does not lengthen automatically;
  • the cord spontaneously comes out of the reel.

DIY trimmer coil repair

The trimmer, whether petrol or electric, is the only solution for cutting grass in hard-to-reach places that a wheeled lawnmower cannot handle. As a cutting tool in trimmers, metal knives or special fishing line are used, which is tucked into the trimmer coil. But, unfortunately, trimmer heads become unusable over time during operation. Some malfunctions can be eliminated by hand, and some require a complete replacement of the mowing head.

Trimmer coil device

Trimmer mowing heads come in a variety of designs, both simple and complex. The picture below shows an exploded view of the semi-automatic trimmer head from a Husqvarna (Husqvarna) lawn mower.

This type of head is found on most lawn mowers and trimmers such as Stihl (Stihl), Patriot (Patriot), Champion (Champion), Bosch (Bosch), Huter (Huter) and others. The device of the mowing head is quite simple. It includes the following details:

  • mowing head base;
  • button for semi-automatic cord feed;
  • bobbin (spool) into which the fishing line is tucked;
  • spring;
  • eyes. through them the line comes out;
  • trimmer head cover;
  • line (cord).

There are also simpler trim heads shown in the following photo.

All these attachments do not allow you to change the length of the line in a semi-automatic mode (after pressing a button). If the cord breaks, you have to stop the mower and change it manually.

The cord lengthens spontaneously

There are times when the trimmer user notices a very fast line flow. However, he never hit the ground with a button to lengthen the line. The reason for the fact that the line spontaneously lengthens, being cut on a special knife on the casing of the device, may be the absence of a spring in the mowing head. Often novice users of mowers, trying to load the line into the reel, forget to install the pressure spring in the head, or even lose it when opening the lid, and in the future, do not even suspect of its existence.

Also, the line can be lengthened without using the button if the spring is loose. If checking the spring has confirmed this fact, then several washers must be placed under it in order to enhance its clamping properties.

Line does not extend automatically

If the line does not lengthen when you lightly hit the trimmer button on the ground, then the reasons for this may be the following.

Option 1. a bite has occurred, i.e. clamping the cord between turns. This problem usually occurs if the user has been winding the line on the reel unevenly, with intersecting turns, or winding it with insufficient tension. In the latter case, when the mowing head rotates at high speeds under the influence of centrifugal force, the cord begins to tighten, as a result of which inter-turn clamping of the fishing line is possible. To fix the problem, you will have to disassemble the coil on the trimmer and rewind the cord correctly, that is, in even turns with good tension.

Option 2. too short ends protrude from the head. The line may not come out when hitting the ground if the ends sticking out of the head are not long enough (short). In this case, the centrifugal force is not enough to stretch the line. Therefore, it is required to stop the unit (turn off the engine or disconnect the trimmer from the mains) and pull out the line manually, after pressing the button.

Option 3. the line is brazed inside the mowing head. This causes the coil to lock and not spin when the button is pressed. Basically, this happens for several reasons: poor cord quality, coil overheating during prolonged operation of the unit, line hitting hard objects.

  • In the first case, third-party cord can be made of low-quality and low-melting materials that cannot withstand mechanical and thermal stress. Therefore, you should give preference to “branded” lines.
  • But, if you nevertheless purchased a fishing line of unknown quality, and it is often soldered during operation, then you can follow the example of some users who, after filling the cord into the reel, wet it with either silicone grease (from a can) or mineral oil. This procedure greatly reduces the likelihood of the coils of the fishing line being soldered together.
  • Also, the line can be soldered if it hits a hard object (stone, fence, dry branch, etc.) during mowing. As a result, it stretches slightly and is pulled back into the head at high speed. From friction, the cord heats up, and its turns stick together. The only thing that can be done to eliminate this malfunction is to open the trimmer spool and rewind the line.

Is it possible to make a coil for a trimmer with your own hands

  • Take a piece of plywood or PCB and draw a circle about 14 cm in diameter on it.
  • Cut the disc with a jigsaw or metal hacksaw.
  • Drill a hole in the center of the disc that matches the diameter of the gearbox shaft. Do not forget to put a washer on it before installing the disc on the shaft.
  • Small corners can be screwed along the edges of the disc or 1-2 holes can be made on opposite sides. They will serve for refueling the fishing line in them.
  • Several screws can be screwed into the plywood to fix the line.

This homemade mowing head is secured to the shaft with a nut. It will not work to tighten or unscrew the nut without fixing the shaft. To replace the cord, it will be enough to loosen the screws, insert a piece of line of the required length and press it again.

Also, the mowing attachment for attaching the fishing line to it can be made of metal sheet. How to do this can be understood from the following video.