All about motor-drills

A motor-drill (gas-drill) is needed on the farm for excavation work and for the installation of poles. This tool is used in cases where you need to speed up the results of manual labor. Before choosing a suitable model, it is worth studying not only the rating of the best offers, but also the varieties on the market. It is quite simple to master drilling with manual gasoline augers - detailed instructions will help you to understand everything properly.

A motor-drill is a specialized type of tool for earthwork. With its help, holes of the required diameter and depth are created in the ground. This portable drilling rig consists of a transmission and a gasoline engine, with coaxial or worm gear reduction gears. The clutch is centrifugal, it is with its help that the rotation is fed to the auger. Also, the tool always has 2 horseshoe-shaped handles that the operator holds in his hands while working.

In models of motor-drills with a hydraulic drive, the mechanical elements are replaced by a system with a pump and a hydraulic motor, which reduces wear of parts. Such equipment requires less effort and time in the process of working with it. It is optimal when drilling wells with a diameter of up to 20 cm and a depth of up to 1.5 m.

Regardless of the design of the motor-drill itself, screw nozzles with a spiral design are mainly used in working with it. On the flange, the soil to be removed rises to the surface. Some types and methods of drilling use core-type tools, as well as sampling nozzles.

The main characteristics that a drill can have are as follows:

• engine power within 1.3-21 liters. with.;
• device weight 7-250 kg;
• engine torque 75-1200 Nm;
• drilling diameter up to 500 mm at a depth of up to 10 m;
• type of transmission hydraulic or mechanical.

The purpose of the tool cannot be limited to a narrow range of tasks. Motor-drills are focused on use as an auxiliary tool in the household, it is also used by specialists in construction work. With the help of mechanical and hydraulic tools, holes are created in the soil of various diameters and purposes. The most common areas of its use are as follows.

1. Repair and strengthening of the foundation.
2. Carrying out works in the field of geological exploration.
3. Bank protection. Drilling is used to prepare holes for columnar foundations in the ground. They are used as protection against crumbling of banks, ditches, and pits.
4. Preparing pits for posts. With the help of a drill, holes are prepared for the supports of the fence, foundation, elements of the lighting system, lightning rods.
5. Installation of heat exchange systems.
6. Laying of linear communications for lighting systems, power supply.

Motor-drills with a gasoline engine can be used even in conditions close to extreme. They are successfully used by researchers in the Arctic and Antarctic. When preparing space missions, this type of instrument is considered as the main device for sampling.

The principle of operation of the device is quite simple. Like conventional mechanical apertures, gasoline varieties are set at a point. After starting the engine, the auger starts rotating. The tool should be positioned vertically, gradually sinking into depth - the main efforts of the operator are directed to keep the device strictly perpendicular to the ground. The selected soil rises in a spiral.

The gas drill is a fairly popular tool that can significantly increase the productivity of manual labor. Depending on the purpose and design features, there is a hydraulic and mechanical version of this equipment. In addition, there is a professional tool that allows you to significantly increase the drilling depth. All models are equipped with auger nozzles, but there are options with reverse - reverse.

The main classification of motorized drilling devices implies their division into groups according to their purpose. There are garden or household models designed for making small holes up to 2 m deep. This is sufficient for most types of earthworks:

• for excavation;
• for land (for planting plants);
• for communal improvement of land plots.

A distinctive feature of household drills is the readiness of the tool for short-term, not too frequent operation. Such models are not focused on intensive daily work. This drill is suitable for fence posts - when preparing holes. The diameter of the auger in garden models rarely exceeds 150 mm.

Professional drill - powerful, large-sized, withstand significant operational loads. It is used for twisting piles and other complex manipulations. Such models are distinguished by a significant immersion depth. For example, when drilling a well for water, nozzles with an elongated auger are used.

Professional gasoline-powered drills can maintain long-term continuous operation. They are equipped with larger augers, the speed of immersion of the nozzle can also be varied in the desired range.

All popular gas drills on sale can be divided into 3 large groups.

1. Lungs. Equipment of this type has a weight of up to 30 kg; 1 operator can handle it. A drill can create shallow wells in light and loose soil. The package includes an auger up to 150 mm and a two-stroke motor; speed control is usually not provided due to the low power of the equipment.
2. Heavy. These are large-sized equipment options weighing up to 80 kg. They are equipped with handles designed for 2 operators - there are 4 in total. This type of equipment is designed to work on dense and difficult soils - clay, black earth. The gas drill is equipped with a powerful four-stroke motor, multi-stage gearbox, the drill has an elongated design, provides a wider range of penetration.
3. Professional with vibration damping. They belong to the category of heavy, a jet rod is additionally included in the package. This addition reduces vibration loads, allowing only 1 operator to handle the job.

According to this indicator, all motor-drills are divided into single-speed and two-speed. The first category includes models for household use. The second - professional, used on different types of soils.

According to this indicator, motor-drills are usually divided into mechanical and automatic. The first ones have to be turned on manually. In the case of automatic start-up of the engine and rotation of the auger, press a button.

The classification for this indicator is somewhat different from the one that is used in terms of dimensions. Light motor-drills have a design designed for manual carrying, movement, installation. They can be operated by 1 person at a shallow drilling depth. Heavy models are equipped with wheels fixed to the frame. This greatly facilitates their transportation.

By design, heavy wheel augers can be like this.

1. Modular. With the separation of the gearbox and motor on different platforms.
2. One-frame. Such models imply the fastening of all parts into a single unit.

These are the main signs by which heavy and light gas drills are classified.

Numerous motor-drills are widely represented on sale. Finding a suitable model among them can be quite difficult. The rating of models selected by reliability, affordability, popularity will help to understand everything. An overview of the main qualities of each tool will allow you to appreciate them. TOP includes products from the most famous companies.

Reliable professional motor-drill, as easy to maintain as possible. This model features an oil-change-free engine equipped with an air filter. Also in the kit there is a built-in protection system, a shock-absorbing cushion that protects the legs from contact with the auger, anti-vibration elements. The diameter of the socket for fastening the auger is designed for a shaft of 20 mm, the weight of the tool is only 10 kg.

One of the best professional models, has a capacity of 8 liters. with., is designed for the work of 2 operators. Reverse is provided in the gas drill. This tool easily copes with the most dense soils, passes any problem areas without difficulty.

Model with a capacity of 2 liters. with. has an excellent package, it includes additional attachments and tools. The motor has overheating protection, but makes a lot of noise, does not have an anti-vibration system. The drill copes well with its tasks, is reliable, the build quality is excellent.

An inexpensive motor-drill for working in the garden or in the country, it develops a rotation speed of up to 6500 rpm. Includes only 1 set of handles, no auger. The model is distinguished by convenient push-button control, there is an air filter and an anti-vibration system. The drill is equipped with a two-stroke motor, has a working diameter of up to 300 mm, and weighs 11.6 kg.

The gas drill of domestic production, differs in budgetary cost, is designed for the work of 2 operators. Tool with a capacity of 2.5 liters. with. weighs less than 10 kg, equipped with a two-stroke engine, can go up to 180 cm underground, suitable for winter fishing.

Among the useful components that can be useful when operating a motor-drill, there are a variety of elements. The most interesting and relevant options for components should be considered in more detail.

1. Spring adapter. It will be needed to install augers with different shaft mounting diameters on the tool. The spring adapter helps to adapt the socket to the attachment of accessories from different manufacturers.
2. Tilt-adjustable handle. Positioning allows the tool to be adapted to the height and length of the operator's arms.
3. Vibration damping spring. A damper is also necessary to reduce the consequences for the mechanism when jammed.
4. Replaceable knives. Not all augers have them. This design feature makes it possible to dispense with the replacement of individual elements in case of breakage or wear.
5. Extension cords. They are needed to increase the drilling depth.
6. Butter. Specialized lubricants are used to refuel the engines of gasoline tools.When choosing them, it is customary to follow the manufacturer's recommendations.

The engine, starter, gearbox are the main structural elements of the drill. They are not included in the spare parts list. If these parts fail, large-scale repairs will have to be carried out. Sometimes the cost of such replacement of spare parts is expensive, its feasibility is determined individually, based on the general wear and tear of the equipment.

When planning to choose a motor-drill for operation, it is important to pay attention to the main parameters that affect the efficiency of its operation. Among the most significant criteria are the following.

1. Equipment power. This indicator affects not only the price of the tool, but also the productivity, speed and quality with which the work is carried out. For most household tasks, a 2.5 liter model will suffice. with. On dense soils, more productive equipment will be needed.
2. Auger dimensions. This piece of equipment determines how deep the hole can be drilled. Household models usually have a diameter of 100 to 200 mm with a length of 1-2 m.In professional motor-drills, augers from 500 mm are used.
3. Engine volume. It should be selected based on the requirements for the speed of rotation and the operating conditions of the tool. The denser the soil, the higher the indicator should be. For most types of work, motors with a volume of 35-40 cm3 are sufficient.
4. Features of refueling a fuel tank. It can have separate holes for filling gasoline and oil, or imply the use of a ready-made mixture.
5. The presence of a protection system. It will work if the drill collides with an obstacle that is too hard. A special fuse will interrupt the operation of the equipment, excluding its overheating or breakdown.
6. Auger condition. Its cutting part should not have obvious defects, it should be well sharpened. It is also worth paying attention to the auger landing diameter - 20 or 32 mm, it differs from different manufacturers. Replaceable blades are a big advantage, if one of them breaks, you won't have to replace the entire shaft.
7. Handle angle adjustment. It makes it much easier to hold the drill when making holes at an angle, allows you to adjust the tool to the individual requirements of the operator.
8. The presence of wheels. It is especially important for heavy equipment. Carrying the drill manually around the site is hard work, especially if you have to do it all day.
9. Vibration compensating system. It is an indispensable component of a professional tool, it provides the possibility of its operation by 1 operator without the risk of injury.
10. Complete set. Most manufacturers sell their products without a complete screw. It is worth clarifying whether you will have to buy it additionally.

Before you drill a hole with a gas powered tool, it is worth understanding some of the rules for its operation. At the first start, the carburetor must be adjusted according to the instructions attached by the manufacturer. The motor-drill needs to be refueled by pouring the required amount of gasoline into the fuel tank. You can start the instrument with autostart by pressing 1 button.

It is also necessary to use a motor-drill correctly. It is worth adhering to the following recommendations.

1. Before drilling a hole, you must clear the area of ​​stones and debris.
2. It is necessary to work in a certain stance. The correct position of the body provides for a semi-bent state of the legs, away from the auger. Both hands should be on the handle.
3. Every 30 cm, the auger is removed from the pit without reversing. This is necessary to avoid jamming.
4. Kickback is a natural phenomenon when the auger enters a very dense medium. The recoil can be very strong.It can be reduced by choosing models with a spring damper.
5. When starting the engine, the starter cord must not be pulled out all the way. If you do not follow this rule, it can simply be pulled out of the mount.

All these rules will come in handy for those who use a motor drill for the first time on their own.