Gasoline garden trimmers (scythes) are actively used by gardeners and gardeners to care for lawns. The small-sized unit allows you to save the site of weed grass and even small bushes without unnecessary efforts. The German Stihl brushcutter is considered, if not the standard, then at least one of the leaders in the segment of garden equipment.
Trimmer design
At the heart of any brushcutter is the engine. The company "Calm" produces models with two- and four-stroke engines - respectively designed for domestic and professional use. In the choice of a particular unit, it is important to consider that two-stroke power plants require the preparation of special fuel mixtures, but four-stroke equipment is more troublesome to maintain. Next, go to the main working part of the Stihl gas scythes. The description of the cutting elements can be represented as follows: a combination of steel knives and discs or a reel with fishing line fixed at the end of the rod. The variety of functional organs is due to the appointment of models. Metal segments are more suitable for processing hard stems, thick grass and shrubs, and the fishing line shows itself well in the neat shaping of the generally well-groomed lawn.
Direct physical control of the tool is realized through the handle, the configuration of which also varies. Stihl designers assemble gas trimmers primarily with D- and T-arms. Choosing the right holder model should be based on individual ergonomic requirements.
Main characteristics
For mowing grass on a personal plot, high productivity is not required, therefore, for the most part, the units receive a low power reserve. On average, the characteristics of Stihl benzokosa on this indicator vary from 1 to 3 hp. Since power equipment today is actively shifting to electric traction, to compare with battery-powered network models, it should be borne in mind that 1 hp corresponds to 0.7 kW.
The next parameter is the bevel parameters. Like lawn mowers, trimmers can have different coverage - usually either 25.5 or 42 cm. Moreover, some modifications make it possible to adjust this value within certain limits. Structural designs can be different, and the mass varies from 3 to 10 kg on average. As for the materials of manufacture, then high-strength stainless steel is the main structural element of the Stihl benzokosa. A review of the best representatives of this family will allow you to become more familiar with the technical and operational features of this equipment.
Model FS 55
One of the most affordable Shtil petrol scythes, which has a two-stroke engine and a configuration of the cutting elements of the fishing line / knife. The power of the power unit with a volume of 27 cm 3 is 1 hp The ergonomic advantages of this version include a small weight of 1.7 kg, a wide passage of 42 cm and a two-shoulder belt, which allows you to distribute the load along the entire back, and not on one side. As operating practice shows, Stihl FS 55 effectively copes with young shoots, old grass, reeds and thin shrubs. What is more important, the small size makes it possible for the tool to safely pass difficult sections along the curbs and around the flower beds. In the basic configuration, a trimmer head, a spare knife and two protective covers are provided. The cost of the model is 12 thousand rubles.
Model FS 70 CE
The representative of the middle class in the family of petrol trimmers "Calm". The power of the two-stroke engine of this petrol scythe is 1.2 hp, and the processing width is 25.5 cm. The main advantages of the model are a reliable and impact-resistant design with a fishing line 2.4 mm thick, which allows you to work confidently on large platforms with wild hard grass. The operator's tasks when handling the engine are facilitated by the ErgoStart launch system. When you turn on the user does not feel jerks - the workflow starts gently and without vibration. In terms of the quality of the result, we can say that the Stihl FS 70 CE brushcutter stably removes even tree shoots and shrub stalks 4 mm thick, but there is also a drawback - high sticks remain. The cost of the unit is about 20 thousand rubles.
Model FS 450K
The premium version of the garden brushcutter, which the manufacturer positions as a brush cutter. The power potential of the unit is 2.9 hp. with a working volume of 44 cm 3 . The width of the mown strip of 22.5 cm is provided by a sharp disk, which can be denied by both dense shrubs and young trees. The engine is also provided with a vibration-free soft start system, but manipulations with the 8-pound design alone require some preparation. However, the technical performance of the tool differs from standard competitors with the same power data. The Stihl FS 450 K petrol scraper is based on a shortened bar designed for tight mowing in tight conditions. This model can be used in forestry or in park areas with abundant thickets. The two-handed crank with turns makes it possible to more accurately control movements, which affects the accuracy of the bevel and safety.
Instructions for use Stihl benzokosa
Transportation of the tool to the workplace should be carried out already assembled with the engine. Just before mowing, the fuel level, the reliability of the rod joints and the condition of the cutting elements are checked. You can start working when the device is suspended on belts and locked through the handles. The operator initially chooses a stable and stable position for ease of handling and safety.
During mowing, the device must be supported with both hands. The fixing configuration will depend on the type of handle, but in any case, a working device cannot be held with only one hand. Stihl petrol scythes move smoothly and without jerking at a height of 15 cm from the ground. After completion of work, the engine stops. For some time, the trimmer should be kept in weight until a final stop of the cutting organs occurs. Further, an audit of the tool is carried out and possible measures for further maintenance of the equipment are determined.
Maintenance and Repair Instructions
From time to time, depending on the intensity of use of the unit, a comprehensive check and technical restoration of the structure should be carried out. First of all, the condition of the supporting rod is evaluated. In case of serious deformations, its replacement or correction in a locksmith workshop on a special bending machine will be required. Periodic sharpening and dressing of cutting elements are also performed on boring and milling machines. Damaged discs and knives should be completely replaced. The following Stihl gas brush cutter parts can be installed independently: coil, mowing head, cutting elements, handle, protective cover. Moreover, the replacement and installation of functional organs and structural parts are made not only in situations of breakage or cleaning. Having several options for cutting tools or holders, for example, it is possible to form trimmer configurations that are different in processing capabilities.
Conclusion
From the point of view of technical and operational parameters, the Shtil brand gas scythes correspond to both direct competitors and products of less well-known companies. And this is not surprising, since the averaged indicators of the same power and device design represent a balanced example of an ergonomic and productive assistant in the care of the lawn. For example, the Stihl FS 55 is a universal trimmer that can be used both in the home and in the maintenance of park areas. A novice can control this model. The products of this manufacturer are distinguished by the high technical resource of parts, the thoughtfulness of the power plant and the inclusion of modern technologies that increase the safety and functionality of the tool.