Choice Of Coil For Trimmer

Trimmer head (coil) Trimmer head (coil) is a special coil on which the cutting cord is wound, their types and features

Trimmer head (coil)

The trimmer is a simple and very popular device that helps keep lawns, flowerbeds, parks and gardens tidy. Its main advantages can be safely:

  • Versatility by changing the cutting element (fishing line or a special knife), you can mow not only grass, but also dense shrubs, vines and shoots of young trees;
  • Ease of use;
  • Relatively light weight.

Such a mowing unit can be operated from an electrical network, a battery or a gasoline engine. Depending on the energy source, the trimmer configuration is different, but the trimmer head remains the same element in all models. In some instructions, these parts may also be referred to as a coil.

Trimmer head (coil) types, features

This trimmer element is a special reel on which the cutting cord (line) is wound. It is the ends of the cord, which are extended at a certain distance at high speeds, that mow the grass. It is worth noting that a coil of cord can only be played off with low grass, but tall weeds, vines or shrubs can destroy the cord.

Today, a trimmer coil of various designs is found on the consumer market. Specialists divide coils into the following types:

  • Manual to adjust the length of the cord, it is necessary to stop the operation of the unit and manually pull the line;
  • Semi-automatic adjustment of the cord is carried out with the engine on, control is carried out using centrifugal force, just press the button on the handle;
  • Automatic to change the line, it is enough to slow down the trimmer speed, then increase the speed and the line will automatically lengthen.

From these descriptions, we can conclude that a hand-held trimmer coil is the most inconvenient design. The automatic design of the reel is convenient when working, but it has one drawback, it is not economical, a large line consumption. Therefore, the best option is a semi-automatic design.

Trimmer heads also qualify for two line threading methods.

  • Fast chargers. To thread a new cord, there is no need to remove the spool from the trimmer, it is enough to insert the end of the cord into a special hole and perform several rotational movements to wind the new line.
  • Collapsible winding. The coil is removed from the unit and disassembled. Winding is carried out according to the indicated arrows, after which the head is installed on the trimmer.

From the above material, we see that the coils can be different, both in design and in the method of filling.

Therefore, before paying for the trimmer, study in detail the head that it comes with.

Trimmer head with two antennae

Double flute head

After removing the spool from the reel body, we determine the number of strands for winding the line (1 or 2). There is no fundamental difference between bobbins with one and two grooves, but if carelessly threading into the twin groove, there will be operational problems. Due to the likelihood of interlacing adjacent lines of the tool, a situation may arise when, after wear of the working antennae, it is impossible to remove new ones.

Regardless of the number of streams, a fishing line with a length of 1.5 to 3 meters is taken for refueling. Winding must be done in the opposite direction to the rotation of the head, since winding in the direction of travel will lead to the fact that the line will not be removed from the reel. After the fishing line is tucked into the trimmer coil, thread the free ends (15-30 cm) into special holes. Next, we assemble the head in the reverse order of disassembly and check the operability. Do not worry if the ends of the two antennae are very different in size, because when you start the trimmer, the knife installed on the protection will cut off the excess.

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How to wind line on a trimmer reel: key points

A gasoline or electric trimmer is an indispensable tool in the arsenal of a modern summer resident or owner of his own home.

Thanks to these gardening devices, even a large garden plot can be mowed with ease. After purchasing this tool and performing several mows, many people think about how to properly wind the line on the trimmer spool. For an inexperienced user, the first operation to replace it will seem problematic and time-consuming, since the developers often do not fully reflect the instructions for replacing the line in the operating manual.

Winding the line to the trimmer

Measured and neat dismantling of the spool from the spit coil makes it possible to go directly to winding the line. The design features of the head, the number and location of the fixing holes dictate the sequence of actions when performing this operation, and also determine the methods used. Today there are several types of reels, depending on the number of line antennae and the methods of threading it:

  1. Trimmer head with one working mustache;
  2. Bobbin with two line antennae;
  3. Automatic winding reel.

Single-barbed trimmer spool

Brushcutter reel with one antenna

Many owners and experts note the ease of use and ease of refueling the bobbin with one mustache. Depending on the manufacturer, the length of the threaded line can vary from 2 to 5 meters. The end of the line is inserted into the head into a special technological groove or hole, and the winding is done in the direction opposite to the working rotation of the bobbin. Most reels have arrow marks on the outside of the body that indicate the direction of travel of the trimmer reel.

After winding, you need to leave a free end of 15-30 cm to enhance the centrifugal force, which is decisive when removing the trimmer line in automatic and semi-automatic spools. We pass the left end through the working hole of the coil and assemble the head.

Preparing to wind the line

Before the winding process, it is necessary to remove the spool with line from the body. Depending on the manufacturer, power and type (electric or gasoline), there are three design types of trimmers:

  • Compact electric trimmers.

Straight bar trimmer

This model provides the ability to install a knife. Removing the coil in such models is done by means of two keys recessed into the coil body. To mount the trimmer knife, it is necessary to align the hole of the reel and the rod, and then insert the device in the form of a steel pin (screwdriver, iron bar). After fixing the coil, the body can be easily twisted clockwise by hand.

Trimmer head with automatic line threading

Types of trimmer heads

Some models on the market have a reel with an automatic winding mechanism. It is enough for the owner to properly thread and fix the ends in the head, and the winding operation will be performed by the tool itself when it is turned on. It is almost impossible to wind the line incorrectly into a trimmer with such a head, since the coil independently determines the position of the antennae. The advantages of the automatic trimmer head include ease of threading the line, and the disadvantages of frequent breakdowns of the mechanism due to the complexity of the design and high cost.

Overview of the Bosch K103 model

This trimmer reel (universal, metal) is in high demand. She weighs only 0.3 kg. Suitable for Hyundai and Makita tools. Among the features of the modification, a strong line should be noted. The manufacturer provides a wrapping system of an automatic type. The core itself is made of metal and rarely breaks.

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The head height in this case is 67 mm. The cap is flat and is not worn out frequently. With annual grass, problems are rare. However, some users wear out the cover. The protective cover in this case is made of plastic. This coil is sold on the market at a price of 900 rubles.

Flymo 15 trimmer reels review

The line for the head is selected with a diameter of 1.3 mm. The model copes with one-year-old grass remarkably. As the owners note, the coil wear is extremely low. With large weeds, owners may have certain problems. Most often, it is the cup that breaks. The presented coil costs around 650 rubles.

Features of EFCO 8100 trimmer spools

This universal trimmer spool (shown below) is sold with a special attachment adapter. In this case, the wrapping system is of an automatic type. The mounting diameter is 6.2 mm. The head height of the model is 76 mm. The line is used directly with a diameter of 1.3 mm.

EFCO 3060 trimmer reel overview

This is a very compact and inexpensive trimmer reel (universal). The wrapping system is of a semi-automatic type. The mount is installed with a diameter of 6.2 mm. The line itself wears out very slowly. According to the buyers, the model is capable of mowing grass of any height. The adapter is installed with a threaded connection. The cup in this case reliably protects the head body. The presented reel is suitable for trimmers “Intertul”, “Hyundai” and other manufacturers. You can buy a model for 850 rubles.

Opinion about Bosch K105

The specified trimmer reel (universal) is produced with a semi-automatic wrapping system. In this case, the mount is screw type. The head height of the model is 6 mm. The fishing line is provided by the manufacturer with a small diameter. If you believe the buyers, then it unwinds very easily. There is a protective cap at the top of the structure. This reel weighs exactly 0.32 kg. The open eyelet allows the line to swing freely. Suitable for trimmer heads from various manufacturers. The user is able to buy a coil at a price of 1200 rubles.

EFCO 3060 trimmer reel overview

This is a very compact and inexpensive trimmer reel (universal). The wrapping system is of a semi-automatic type. The mount is installed with a diameter of 6.2 mm. The line itself wears out very slowly. According to the buyers, the model is capable of mowing grass of any height. The adapter is installed with a threaded connection. The cup in this case reliably protects the head body. The presented reel is suitable for trimmers “Intertul”, “Hyundai” and other manufacturers. You can buy a model for 850 rubles.

Opinion about Bosch K105

The specified trimmer reel (universal) is produced with a semi-automatic wrapping system. In this case, the mount is screw type. The head height of the model is 6 mm. The fishing line is provided by the manufacturer with a small diameter. If you believe the buyers, then it unwinds very easily. There is a protective cap at the top of the structure. This reel weighs exactly 0.32 kg. The open eyelet allows the line to swing freely. Suitable for trimmer heads from various manufacturers. The user is able to buy a coil at a price of 1200 rubles.

Features of EFCO 8100 trimmer spools

This universal trimmer spool (shown below) is sold with a special attachment adapter. In this case, the wrapping system is of an automatic type. The mounting diameter is 6.2 mm. The head height of the model is 76 mm. The line is used directly with a diameter of 1.3 mm.

To look after the lawn near the house or summer cottage, you cannot do without a trimmer. As you know, the coils of these tools wear out quickly. However, in this case, a lot depends on the vegetation that a person is struggling with. If we talk about one-year-old grass, then the coil wear is extremely low. However, weeds are very difficult to control.

How to choose a model?

The market is mainly represented by plastic modifications. They are produced with steel cores. First of all, you should pay attention to the diameter of the line. For one year old grass and small weeds, a size of 1.5 mm is suitable. The coil height must not exceed 80 mm. The wrapping system is most often used of a semi-automatic type. However, there are models that only fire when you touch the ground. Thus, the line wears out much more slowly. There is such a modification in the region of 800 rubles.

Choice Of Coil For Trimmer

Reviews of Trimmer Reel EFCO 8155

The presented trimmer reel (universal) is produced with a plastic cover. The model copes with one-year-old grass successfully. The same goes for small weeds. The diameter of the mount at the head is 6.2 mm. The line itself is made with a diameter of 1.3 mm. This head fits many garden trimmers. According to the buyers, the line unwinds very quickly. The wrapping system is of a semi-automatic type.

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Method 3

If there is no multimeter, you can check the coil in another way.

To diagnose, you need to take the following steps:

  • Open the cover that covers the cylinder;
  • Remove the cap of the high-voltage wire from the candle without unscrewing the part itself to maintain compression;
  • Tightly place a nail without a cap in the cap, it will simulate the central electrode of the candle;
  • Use a dielectric material to tie the cap with a nail to the cylinder so that the gap between the simulator of the spark plug electrode and the mass ranges from 5.5 to 7 mm (the exact distance for a particular model is recommended to be found in the user manual), but the part does not come into contact with the mass;
  • Using the starter to reproduce the engine start several times, holding the ignition button in the on position;
  • If a spark appears, you need to consider what color it is.

A strong white or bluish spark is normal, and a faint flash of orange or yellow indicates coil failure.

Often, a cold magneto creates a powerful spark, but when heated, due to a defect in internal components, it does not conduct current. After the coil of the brushcutter has cooled, it starts up again and mows the grass with a fishing line or knife until the magneto is heated. This is abnormal behavior and the coil must be changed.

Common problem causes

The faults that most often occur with magneto are typical for trimmers from different manufacturers. As a rule, this is a weak spark or its absence, as well as the presence of interruptions in this process.

Unstable sparking

If the magneto sparks intermittently, the contacts must be checked first. They could be burnt or oily. The carbon deposits found are cleaned with a file, and the oil is wiped off with suede, previously soaked in gasoline. The second possible cause of the problem is the adjustment of the gap between the contacts. To eliminate it, you need to set the correct distance.

If the spark appears intermittently, it may also mean that the breaker arm pad is worn. To eliminate the malfunction, you must change the lever to a new one. In addition, the clearance should be adjusted, as with another possible cause of breakage, misalignment of the outline.

Capacitor breakdown can also be the culprit for interruptions in spark formation. In such a situation, replacement of the damaged part is required, since it is impossible to repair and recharge it.

Magneto design and operating concept

The purpose of the ignition coil is the conversion of rotational energy into a high-voltage discharge and the formation of a spark that ignites the fuel mixture. In an internal combustion engine, this part is called a magneto, since in it an alternating current is generated from the rotation of a permanent magnetic rotor or armature.

Magneto structurally consists of two windings: high and low voltage. A capacitor with breaker contacts is connected in parallel to the latter. Whereas the leads of the high voltage winding are connected to the candle and the body. They are both wound on a core, between the poles of which a rotating magnet is installed, magnetized longitudinally.

The first way to check the ignition coil involves the use of special equipment (stand). At home, it is not available, you can find it only in service centers.