So, the mowing head is a cylindrical body in which a bobbin with a fishing line is placed. Such a detail is present both on electric trimmers and on gasoline scythes of any brands, be it Bosch, Makita, STIHL or another brand. There are three types of heads depending on the method of threading and feeding the line. Special grooves are cut inside the coil (there may be holes). Insert a loop of line into this groove.

After that, you can proceed to dismantling. To do this, you do not need to pull it with all your strength, but slightly shaking it to the sides, slowly disengage it from the metal shaft on which the drum is seated. 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, pressing 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. The main part of the drum is fixed with a screw, which must be unscrewed with a screwdriver with an appropriate tip or bit Usually, the process of changing the line on a particular model trimmer is popularly described in the accompanying documentation. Another question is that this documentation is often supplied in a foreign language, since the notorious lawn mowers for the most part are imported products. Periodic removal of the head is recommended to prevent corrosion of the threaded connection. If you never unscrew the screw, then if necessary, it will be difficult and even impossible to do this.Trimmer mowing heads come in a variety of designs, both simple and complex. The picture below shows an exploded view of a semi-automatic trimmer head from a Husqvarna (Husqvarna) brushcutter. 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. Option 1. a bite has occurred, i.e. clamping the cord between turns. This problem usually appears 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.

which is further accompanied by abundantly growing greens, and not the formation of dead wood as a result of the work of the grass trimmer. How to remove the spool and replace the line 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.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. Switch off the brushcutter engine or power off the electric grass trimmer before threading the line into the spool to avoid injury from accidental starting rotation of the cutting tool. Electric trimmer and lawn mower users often face a problem with a semi-automatic mowing head. Coil malfunctions can be as follows: 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. 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.

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. DIY grass trimmer coil repair 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. 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 Initially, remove the line from the spool of the grass trimmer before threading it into the 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. 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.

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 change the grass trimmer line. The video below shows the detailed process of how to open the grass trimmer coil and disassemble it. Installing a new line on the grass trimmer reel When assembling the unit, treat the threaded seat with lubricants, for example, grease or machine oil. If the line does not lengthen when you lightly hit the grass trimmer button on the ground, the reasons may be as follows:.