How to Sharpen a Mill For a Trimmer
Unlike lawn mowers, which precisely maintain a given height and allow you to process large areas, trimmers are not able to ensure exact compliance with the cutting height, but they are very maneuverable and allow you to cut grass in hard-to-reach places: under bushes and trees, benches, stairs, etc. And the shape of the surface for the trimmers does not matter. These little helpers. A good addition to lawn mowers, because they are more suited to bring final order to the lawn.
Trimmers are arranged quite simply. A cutting head is fixed at the end of the metal tube-rod, the main part of which. plastic bobbin (bobbin) with a stock of special fishing line inside.
Before work, two pieces of fishing line of the desired length are pulled from the bobbin and fixed. This happens manually, semi-automatically or automatically, depending on the model. When manually releasing fishing line:
- remove the bobbin;
- open the lid;
- pull out "mustache" fishing line;
- close the lid;
- insert the reel and continue to work.
If the trimmer uses a semi-automatic release of fishing line, then the supply of fishing line is possible in two ways:
- when the engine is running, lightly press the button located on the reel on the ground;
- when the engine is off, press the bobbin button and simultaneously pull "mustache" fishing line, fishing line comes out.
Automatic release of fishing line (when the fishing line is released automatically when you turn on the tool or in the process of its operation) the most uneconomical.
Protruding bobbin "mustache" driven by an engine with a frequency of the order of 10000-12000 rpm Under the influence of centrifugal forces "mustache" stretched into strings and turned into sharp knives that move at a speed of about 26 m / s. Thus, a fishing line with a diameter of 1.6 mm can overcome not only soft lawn grass, but also young shoots of raspberries and plums. Coverage ranges from 23 to 40 cm.
There are electric, battery and gas trimmers. Electric trimmers are lighter than gas trimmers (most of them weigh less than 2.5 kg), low noise, environmentally friendly, turn on at the touch of a button. However, movement when working with such a trimmer limits the power cord, and the motor located below increases the load on the hands.
Electric trimmers with a lower location of the electric motor are characterized by low power (from 250 to 500 W), a bobbin (bobbin) with a fishing line wound on it from 0.8 to 1.5 mm is mounted directly on the motor shaft. They are lightweight and controlled with one hand. Fishing line can be released manually, semi-automatically or automatically.
Try to avoid mowing this type of trimmer in wet weather, after rain, or when the dew falls. The fact is that the cooling of the electric motor occurs through the slots in the plastic case, through which moisture can get inside.
Do not use this trimmer for more than 10 minutes. this may cause the engine to overheat. Take breaks at work.
There are trimmers not only with the bottom, but also with the top engine. Electric trimmers with an overhead motor are equipped with more powerful electric motors; some models may use a metal cutter (knife) or plastic knives as a cutting tool.
With the help of such a trimmer, you can successfully fight weeds and mow everything, including quinoa, burdock and shrubs. The release of fishing line here is semi-automatic or manual, the diameter of the fishing line. from 1.6 to 2.4 mm.
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The undoubted advantage of this category of trimmers is that now you can safely mow raw grass without fear of moisture getting on the electric motor. However, in no case should you mow in the rain!
Cordless trimmers also make little noise, they are easy to start and stop, you can freely move around on the lawn with them, but the disadvantages are. low cutting ability, more weight (up to 4.5 kg) and short working time without recharging. from 15 to 30 minutes. Therefore, they are not yet widely used.
Gas trimmers are widely used due to their autonomy, high power and performance. These devices are most often used by professionals in their work.
When using a gas trimmer (lawn mowing), you do not need to worry about the presence of a power outlet and the quality of the mains voltage, be careful not to accidentally cut the extension cable or mash it with a fit.
According to the layout, lawn mowers (however, this applies in part to electric trimmers) differ from each other:
- power and type of engine (push-pull or four-stroke);
- the shape of the bar (straight or angled, solid or split);
- the shape of the control knobs (D, J or T-shaped);
- cutting tool (trimmer head, circular knife).
Braids with a four-stroke engine are favorably distinguished by the fact that gasoline and oil are poured into the engine, as in a car. separately. No preliminary preparation of a push-pull fuel mixture of gasoline and oil is required.
To mow large areas, it is more correct to use braids with a direct barbell and T-shaped handles that distribute the load on the hands more evenly. It is desirable that the engine power be larger.
When choosing a trimmer, many, especially women, are inclined to favor powerful electric trimmers for fear of not being able to handle the start of a gasoline engine with a manual starter. But recently, these concerns can be left aside. The breakthrough was made by the American company MTD, which equipped its lawn mowers with engines with an AST system (Advanced Starting Technology. Advanced startup technology). These are not just long-known solutions. for example, an integrated decompressor or injection of an enriched fuel mixture. Engines with the AST marking have an additional device with a powerful spring, the energy of which helps to start the engine without tension on the hand and even when the starter cord is pulled slowly.
When buying a trimmer, you need to determine in advance exactly what tasks you want to solve with it. After all, work under the bushes, processing the edges of the lawn and flower beds, mowing the grass along the fence present different requirements for the tool. Your physical data also affects your choice. The weight of the selected model depends on them. whether a knapsack is needed or if you can keep the trimmer all the time on weight. And if several people will work with the braid, then you need to adjust the height.
When comparing different models of trimmers, the following indicators are distinguished: power; ease of starting the engine and supplying additional fishing line; convenient location of controls.
The effectiveness of the trimmer can be estimated by such an indicator as the ratio of mass and power. It is desirable that as much power as possible per unit mass of the tool.
Pay particular attention to the ergonomic design so that lawn care is not hard labor. The more convenient the handle or steering wheel of the trimmer, the higher is not only its controllability, but also safety. Fastening belts significantly reduce the load on the hands during operation, a sufficiently long split rod allows you to increase the coverage area, and if necessary, transport the tool without problems in the trunk of the machine.
Work with trimmer
Manufacturers do not recommend working in sandals or barefoot, as this can lead to injury. Clothing and shoes for working with trimmers should reliably protect your legs from damage.
A special skill when working with a trimmer is not required. just hold it correctly by both handles and drive it evenly along the surface.
Fishing line (usually 1.3-1.6 mm), which is trimmed with trimmers. special. Fishing line is not suitable for this purpose.
After work, the trimmer must be cleaned. Regularly clean the ventilation slots, cutting line and spool using a soft brush or dry cloth. Use a blunt scraper to regularly remove dirt from under the guard.
Store the tool in a warm, dry room, protect it from dust and dirt.