How To Properly Hold A Lawn Mower
Chainsaw and lawn mower. Start-up and maintenance of motor vehicles
Many of our compatriots, in order to facilitate their own work, came to the need to purchase motor vehicles. Since among domestic consumers the most popular products are lawn mowers”lawn mower and chainsaw”chainsaw, among them, the products of the Husqvarna brand have proven themselves almost the best”Husqvarna, then we will take them as an example to illustrate recommendations for the correct use of this kind of technique. By observing the recommendations below for the use of motor vehicles, you can easily achieve a virtually lifelong service from it.
Chainsaw and lawn mower engine break-in
Who would not say what, no matter what the latest technologies in the manufacture of the instrument would not be applied, but the laws of physics have not been canceled. Therefore, before starting work, the engine must be run in. To do this, the engine must run at least one tank of fuel (no load!) With frequent changes in the speed (idle, maximum speed). The next 10 hours of operation in the mode of gentle (50%) load. In the case of running a chainsaw, it can be work, say, with small diameter wood, and in the case of a lawn mower. Work only with a fishing line (not a cutter).
Engine. Chainsaw. A precision instrument with a two-stroke internal combustion engine and all its parts need technical cleanliness and proper lubrication. The air filter of the chainsaw must always be clean (free of dirt and sawdust); the foam filter must be moistened with oil. The fuel filter must be checked once a week (replace if necessary). Checking the tightness of nuts and screws. Before starting work. Cleaning the muffler (or its mesh) and spark plugs from carbon deposits. Of necessity. Lubricate the bearing of the centrifugal mechanism (if necessary) once a week.
Chain. The cutting edges must be well and correctly sharpened using the correct templates and files, depending on the brand of chain. After several sharpenings, check the height of the cut depth limit. The gap between the stop and the cutting edge should be 0.7 mm. Check the chain tension at all times. It should neither sag, nor be tightly tensioned: incorrect tension leads to overloading of the engine and intense wear (and even breaking) of the chain and bar.
Tire. The driven sprocket must be lubricated once a day (in winter, at each refueling). It is also necessary to clean the tire surface from dirt and turn it 180 degrees once a day (to ensure even wear). Also, at least once a week, it is necessary to remove burrs from the tire flat with a flat file to maintain the perpendicularity of the guide rails to the oil supply groove.
Chain lubrication. For these purposes, it is better to use a special Husqvarna oil, as a last resort, any clean machine oil. In no case should you use “working off ” or “spindle” (flushing oil). Carry out constant monitoring of the oil pump operation. Even short-term operation of the machine without lubrication leads to accelerated wear of chains, sprockets / discs and tires.
Lawn mower maintenance
Engine. The air filter must always be clean (free of dirt and sawdust); the foam filter must be moistened with oil. The fuel filter must be checked once a week (replace if necessary). Checking the tightness of nuts and screws. Before starting work. Cleaning the muffler (or its mesh) and spark plugs from carbon deposits. Of necessity.
Angle reducer. This part of the mechanism lawn mowers must be cleaned daily from dirt (“fur coat” from particles of cut grass and soil does not allow the gearbox to cool down normally) and apply grease Husqvarna for a gear pair.
Lines and trimmer heads. Use only special mowing line. Do not use wire or metal ropes! Install only a line of the diameter recommended by the manufacturer. Wind tightly around the bobbin without crossing the turns. Lawn mower needs to be cleaned of dirt from the mowing head and, if necessary, lubricated.
Cutting discs. The cutting parts must be well and correctly sharpened using the necessary templates and files, depending on the brand of the disc (cutter). Like gasoline engine, lawn mower needs to regularly turn the double-sided disc (cutter) 180 degrees for even wear. A blunt disc or a disc with poor or incorrect sharpening cuts poorly, and thereby overloads the engine, which leads to a rapid reduction in its service life.
Protective covers. Without protective cover lawn mower cannot be operated. This is prohibited for safety reasons. In addition, such work can overload the engine. Lawn mowers. Only use its own protective guard for each type of cutting attachment.
Lawn mower. How to work with her
A haircut. Hold the trimmer head directly off the ground at an angle. Only the end of the string does the work. Allow the machine to run at its own speed. Do not press the string against the mowed area. The mower must be above the ground, otherwise you will overload the engine and mowing head. They may fail or melt!
Cutting. The line mower (trimmer) is ideal for cutting thin grass that is difficult to reach with a conventional lawnmower. Keep the string parallel to the ground as you cut. Avoid pressing the trimmer head to the ground, as this can ruin the lawn and damage the tool.
Pruning with a knife (disc or cutter). Lawn mower, especially with a power reserve, very convenient for mowing grass for hay. It is best to do this with a special knife or disc (cutter). Mow grass in hay with pendulum movements from side to side, movement from right to left will be working, and from left to right. Will be refundable. The blade should cut the grass with its left edge (on the clock face, between 8 and 12).
How to properly mix a lawnmower or chainsaw fuel
Remember! Lawn mower and chainsaw needs special fuel. Gasoline oil. And nothing else.
Oil. High quality two-stroke Husqvarna oil for high-speed equipment (10-15 thousand rpm, about 200 rpm). In no case should you use motorcycle oils (low engine speed) or water vehicles (other cooling system). Their use does not provide the necessary lubrication of the piston group and parts of the entire engine!
Petrol. Any pure high-octane gasoline (with an octane number of 92 and above, with a density within 750.770 kg / m3). The purity of gasoline must be: mechanical. Defend and store gasoline for operation not in a metal container and no longer than 1 (one) month, otherwise it will oxidize and lose its properties; chemical. Impurities and additives should not be present (they have different speed, degree and combustion temperature). Old gasoline turns yellow and red, and impurities have pungent odors of bitterness (for example, creosote) or acid (for example, methyl alcohol).
Fuel ratio. 1:50 (2%) or 20 ml. Oil for 1 liter. Gasoline. For example, pour half a measure of gasoline into a transparent plastic bottle (1 liter), then use a medical syringe (20 ml.) Husqvarna oil and mix, add gasoline and mix thoroughly. If the quality of gasoline is questionable or working conditions are difficult, then the amount of oil can be increased to 22-25 ml per liter. Gasoline. Shake the mixture before each refueling! Store the resulting fuel for no more than two weeks! If the color of the mixture has changed (from aquamarine color has become, for example, brown), then it is not recommended to use it!
How to choose a lawn mower
Lawn mower or a gasoline trimmer is a convenient, mobile, practical and therefore very popular tool with which you can mow grass, stiff shoots, thickets of small shrubs in your summer cottage, near your house, in the garden before harvesting potatoes. Recent times lawn mowers became very popular in agriculture for harvesting hay. However, a large selection of models with different technical indicators and a wide range of raise a natural question from the consumer: which one? Choose a lawn mower in a price-quality ratio, and so that its technical characteristics meet the tasks to be performed as much as possible. In this article, we will try to tell you what are lawn mowers, what types of work they are suitable for, as well as the basic rules for operating a gasoline trimmer.
Types of lawn mowers
Depending on the technical characteristics, as well as on the mode of operation, all lawn mowers can be roughly divided into:
Professional lawn mower designed for industrial use, performing a large amount of work for a long time, and is perfect for use by utilities or in agriculture. Naturally for this lawn mower must have not only high technical performance, but also the appropriate build quality. As a rule, professional models have engine power from 1.8 hp. And above, they are equipped with both a trimmer head with a line and a steel knife. Over, the thickness of the fishing line is greater than usual (from 2.4 mm), and the knife can be 3, 4 and 8 lozenges (the latter is used for mowing tall, weaving grass and for hay harvesting). There are also knives with a large number of teeth, they visually resemble saw blades and are used for mowing bushes. In addition, a distinctive feature of professional lawn mowers is a non-separable rod, in the middle of which the shaft moves. On the one hand, this is not very convenient, especially when transporting and storing the tool, since the device is quite large, and on the other hand, such a design prevents sand, dirt, dust from getting into the middle, which significantly extends its resource. Over, the connecting mechanism of the two shaft parts may loosen over time, which causes backlash. Separately, it is necessary to dwell on the shaft, which is located in the middle of the rod and transfers the engine torque to the cutting attachment. It comes in two types: flexible and rigid. The flexible shaft has the appearance of a cable and prevents damage to the gearbox when a knife strikes from a stone or tree trunk. It simply absorbs this blow. At the same time, the rigid shaft (metal pin) resists deformation under load. Such lawn mowers used for mowing dense thickets and bushes.
Household lawn mowers intended for work near the house, in the garden, in the garden. They rarely exceed 2 HP and can also be fitted with a line trimmer and steel blade. Structurally, they are similar to professional models, but there are some features:
- A number of household models are equipped with a curved bar, which is convenient when working in hard-to-reach places (under benches in the garden, near flower beds, between trees), since such lawn mower less overall than its counterpart with a straight bar;
- A type of handle, which can be bicycle type (like professional models), or it can be D-shaped. In the second case, on the bar lawn mowers a handle is attached, which the user holds with one hand, and the other hand holds the tool by the bar near the engine. Users’ opinions were divided: which design is more convenient. The matter, as they say, is a matter of habits, since it will change from a bicycle handle to a D-shaped one or vice versa, as practice shows, not everyone succeeds
- Household models are more often found with a collapsible bar, which is very convenient for storage and transportation, since disassembled lawn mower two times less, and assembling it back is not difficult and takes a minimum of time.
Another feature that significantly distinguishes a household model from a professional one is its cost. The latter will be much more expensive. Therefore, before choose a lawn mower it is necessary to decide which tasks you will perform with its help. If you have a plot of up to 15-20 acres, it is absolutely not necessary to overpay and buy a professional tool, since in this case, household lawn mower perfectly cope with such a volume of work.
We work as a lawn mower: basic rules
The main requirements for working with a lawn mower directly depend on the rules for operating a gasoline 2-stroke engine. Such a motor runs on a fuel mixture of gasoline and 2-stroke oil, which is prepared in a ratio of 1:50, that is, 1 gram of oil is added to 50 grams of gasoline. It should be said that when starting work with a new tool, it is recommended to add a little more oil. Let be lawn mower on one tank of such a mixture it will work at 50% of its power, then feel free to fill in the usual mixture. When preparing a fuel mixture for your lawn mowers it must be remembered that it is suitable for use for no more than two weeks, after which its properties change, which negatively affects the operation of the instrument as a whole. Therefore, do not rush to prepare it in large quantities, and also drain the fuel from the tool during long breaks between mowing. There are also models with 4-stroke engines, in which oil is poured separately with gasoline, they are more economical and have a longer service life. But such lawn mowers have more weight and cost more.
Before starting work, we recommend that you carefully inspect the area and remove stones, branches, and other debris from it, which you may not notice in the grass during work, which can lead to breakage or to premature wear of the cutting tool. When working with a gasoline trimmer, you must remember that it is not only a practical and convenient tool, but also quite dangerous. Since the trimmer head with line or steel blade turns at a high speed, the following safety rules must be observed when working:
- Do not use tools without the protective shield provided with each lawn mower
- Wear glasses when working to prevent grass particles from getting into your eyes
- The engine heats up during operation, therefore, when removing the tool between mowing, it is better to hold it by the bar or the handle.
How to choose the right lawn mower for your home: Features and what to look for
There is a huge selection of gasoline grass mowers on the market today, differing in technical characteristics and manufacturers.
In a rich and varied assortment, it can be difficult for an inexperienced gardener to decide on the right option. The question arises: what to look for in order not to make mistakes and spend money wisely. Read the answers and recommendations later in this article.
Before choosing a petrol trimmer, it is wise to decide on the size of the area to be treated and the nature of the vegetation. The functionality of the braid will depend on this.
Many people believe that you need to go deeply into all the characteristics, but in the end they get tired of studying, the purchase is postponed. Do not overload your head with unnecessary information. All that is required. It is to navigate in the main technical characteristics.
- How quickly you can mow the lawn: engine power, working width.
- How comfortable it is to work: design ergonomics, weight, dimensions.
- How long will it last: material quality and design features.
Barbell design features
The barbell can be straight or curved in shape. The first option is reliable and durable. The rotation from the motor is transmitted through the steel shaft, providing the desired cutting speed. At the bottom of the boom there is a reducer that allows you to use, in addition to fishing line, a cutter for mowing thick-stemmed plants.
Low power curved boom models. They have a metal cable inside that transmits the torque to the mowing headset. Such lawn mowers are suitable for the home, help to mow the grass under benches, along fences and walls, that is, to process hard-to-reach places.
There is also a division of rods into collapsible and non-collapsible. Of course, it is easier to operate, transport and store those devices that are disassembled. But such a design will not last as long as we would like. Lawn mowers with an all-metal shaft are non-separable inside, which guarantees reliable service for many years in a row. They are used for summer cottages, large areas with herbs, hay, straw, and other work.
How to choose a lawn mower by power
All lawn mowers can be divided into three classes:
- Household. Up to 1 hp Suitable option for lawn care, the area around the house.
- For agricultural work 1-1.5 hp They are great helpers for making hay for pets. Mow the herbs.
- Professional. Over 1.5 HP devices for long-term work in large areas.
Adjusting the shoulder straps
To distribute the load evenly across the shoulders and back, the shoulder straps need to be well adjusted. To do this, it is enough to tighten or relax the straps. They should not dig into the body or hang down. To understand how the weight will be distributed, you can press with your own hands on the hook for hanging the scythe.
Attaching the lawn mower to the belt
Depending on the model, the petrol braid can be attached to a belt with a bar or loop. In the latter case, for balancing, you need to move it along the bar in order to get the desired result. In some cases, damping mechanisms are provided to help dampen vibration and soften the sudden jumps in the trimmer.
To provide yourself with comfortable working conditions, you need to be able to properly put on a backpack belt. This process requires some skill, but then, after adjusting the knapsack for the first time, it will be much faster and easier to put on.