How to choose lawn mower parts

Country owners and lovers of beautiful lawns, parks, sports fields in the summer period are constantly faced with the problem of their overgrowing with grass. To quickly cope with this task, which requires a significant investment of labor and time, often use lawn mowers of various models. With their help they maintain aesthetically optimal height of the grass cover. The range of equipment on the market today allows you to choose a model that is suitable for the price and its performance characteristics without any problems. It is also not difficult to choose parts for the lawn mower if necessary repairs. But it should take into account certain nuances.

The device gasoline and electric lawn mower

Lawn mowers are popular equipment for mowing grass and giving it a beautiful, well-groomed appearance. They are means of small mechanization. The grass is cut by blades, rotated by engines of different systems, or by scissors, which are set in motion due to the physical efforts of the operator. The knives form a fairly strong air flow, because of this, the cut grass pieces fall into the collection box.

General structural elements of models with different drive

Classify all the variety of models offered on the market according to three main criteria:

• displacement method;
• used knives;
• drive mechanism.

According to the last criterion, the following types of equipment for mowing grass are distinguished:

• gasoline (most common);
• electric;
• mechanical.

Mechanical mowers have a simple device and are driven by human muscular strength.

Petrol and electric units Consist of the following common structural elements:

• plastic, aluminum or steel case;
• power unit of different power: an internal combustion engine with a vertical shaft or an electric motor;
• knives;
• grass collector - a container intended for the assembly of cut grass in the process of mowing and placed on the side or behind the body of the lawn mower;
• control levers and buttons (control gear);
• grass throwing unit;
• platforms with wheels and handle (handle).

The gasoline mower unit is shown schematically in the photo below.

The design of the electrical model is presented in the photo below.

The cheapest is the plastic case, and the most durable - aluminum. Containers under the grass are plastic or fabric (synthetic origin). There are models that do not have wheels that move on air cushions. Many lawn mowers also have a mulching knife that crushes mowed grass.

Features of devices of different types

Equipment with gasoline engine has such different structural units:

• fuel tank;
• piston system;
• air filter;
• starter;
• carburetor;
• fuel supply and ignition systems.

Electric models have a power cord that connects to the household network. To connect often have to use an extension cord.

Petrol and electric cars are of two types:

• self-propelled;
• not self-propelled.

The design of the self-propelled devices additionally includes an electric motor and a control system (on / off). In some models of mowers there are no grass collectors. The release of mowed grass is carried out in the side.

Self Propelled Lawn Mower Spider

The manual varieties of gasoline and electric lawn mowers also include trimmers. Their device is different from the usual wheel models. The constituent elements of the motokos construction are presented in the photo below.

Among the machines operating on electrical energy, a separate group is distinguished. battery models. In them, the source of electricity is the battery pack, which periodically needs to be charged from a stationary supply network of 220 V. The operating time of such machines is determined by the capacity of the installed batteries.

Recently, electricity-powered high-tech mower-robotswho mow grass on their own, without human intervention. In addition to the main nodes, they are equipped with various sensors. Built-in sensors help to navigate in space, and also respond to rain.

Units operating on gasoline, more powerful and mobile machines equipped with an electric motor. But due to the fact that they are equipped with vertical motors, such machines can be used for a long time only in areas with an inclination of no more than 15 degrees. Short-term tilting of the equipment at an angle of 25 degrees is allowed.

Due to the use of different types of drive, in addition to the above, smaller structural details are also different.

Replaceable parts in a lawnmower

For a lawnmower with any type of drive is characterized by a complex device. Over time, any node of the machine wears out. Sometimes it is necessary to repair or replace the main structural elements of the device:

• drive mechanism;

Lawn mower drive

• wheels;

• power cord;
• batteries;

Battery Mower

• Start and adjustment system buttons;
• case with handle.

In order for the internal combustion engine to last for a long time without repair or the need for replacement, you should use a suitable fuel mixture, monitor the level and quality of the oil used.

Gasoline and electric mowers require regular maintenance. It is necessary to change in order to prevent the following details:

• transmission belts that may be partially damaged or stretched, which is dangerous for further practical use of the mower;

Transmission belt

• cutting knives;

• carburetor air filter;

Air filter for HONDA HRB216

• starter cord, which is erased with time, becomes thinner;

• fuel filter;

• candles.

All parts of the operated lawn mower model are replaceable. Their list with marking is contained in the passport of the user's manual attached to the equipment. Most of the nodes are now standardized - this allows you to easily select and purchase the required spare parts.. In order not to be mistaken, it is recommended to buy replaceable parts, focusing on their passport data. This is most relevant if the used product manufacturers have already removed from release.

The right choice of consumables

Belt and knife are parts that require frequent replacement, they also belong to the cutting line.The frequency with which components should be changed is indicated in the operating manual.

Knife system

Knives are of two types:

• rotary;

• cylindrical (drum, spindle).

Cutting tips should be selected based on the following criteria:

• design features of mounting knives;
• the type of working nozzles installed;
• for rotary knives, you must consider the possibility of performing their balancing;
• the size of the cutting nozzles;
• focus on the manufacturer.

The sizes of knives are specified in the passport of the equipment. In this case, it is permissible to install shorter blades. This will not lead to negative consequences, except for a decrease in labor productivity.

It is recommended to order immediately in the collection all of the cutting unit that matches the passport data, so that later there will be no problems with grinding the knives.

The best option if you need to change the knife is to replace it with the same model from the same manufacturer. An error will result in the inability to install the blades on the operated equipment. In order not to look for a specific suitable model of knives,You can use universal cutting nozzles for lawn mowers - the easiest way to do this. Knives for trimmers are chosen in the same way.

Belts

With regard to the choice of belts, then on this issue should be considered:

• dimensions and brand of the belt installed on the device being operated;
• if there is no data on the size of the belt, then you should measure its length, thickness and width yourself, and then choose an analogue suitable for these parameters.

Belt drives for mowers have a toothed internal profile, while mobile lawn mowers have polyurethane belts reinforced with polyester cord.

Toothed belt with internal profile

For lawn mowers, parts requiring replacement must be selected and purchased based on their passport data. This will allow to buy suitable spare parts, and no alterations of the working mechanism will be required. Often parts produce standard sizes, which makes it possible to select counterparts with the required performance characteristics. It is recommended to buy components only in reliable, trusted stores in order to avoid fakes and possible marriage.This is especially true if you plan to purchase products from expensive brands.