Do-it-yourself Walk-behind Tractor From A Chainsaw: How To Make A Walk-behind Tractor From A Druzhba Saw? Homemade Engine Drawings

2024 Author: Beatrice Philips | [email protected]. Last modified: 2023-12-16 05:33

Owners of land plots who have a walk-behind tractor in their use do not experience difficulties with the cultivation of their "estate", doing this very quickly and efficiently. But what to do if the area of the territory is small and it is inexpedient to purchase expensive agricultural equipment.

The solution to this situation is the reconstruction of a gasoline saw into a homemade walk-behind tractor for soil cultivation. This modernized device is capable of coping with the functions assigned to it no worse than special equipment.

Motoblock with a motor from a chainsaw

So, we have a gasoline saw that is not used very often or is completely idle. In this situation, after making certain calculations and selecting the necessary materials, our chainsaw becomes an excellent walk-behind tractor. The concept of creating artisanal agricultural machinery, depending on the manufacturer's brand, may vary, but the basic rules consist of the following steps.

• The most important step is the development of the drawing, by which you will make the necessary device. Drawing documentation and diagrams of a walk-behind tractor from a gasoline saw can be made both independently and by downloading ready-made calculations from the Internet. Finding them will not present the slightest difficulty, it is enough to hammer a search query into the browser and select the assembly project you like.
• When the drawings are available, then it is time to assemble the frame for the future walk-behind tractor.
• After the frame is ready, the saw motor and its fuel tank are fixed to it.
• In the last turn, the auxiliary components of the system are mounted, which are responsible for control and other possibilities.

Keep in mind that not only an engine from a gasoline saw, but also a motor taken from a moped or motorcycle is suitable as an engine for motor vehicles.

To implement the idea, prepare the following list of devices and materials

• Engine from an existing gasoline saw. The Druzhba or Ural chainsaw is best suited for this.
• A handlebar removed from a motorcycle or moped.
• Welding machine.
• Iron sheets and pipes in the amount required for the construction of the unit skeleton.
• Wheels from old technology.
• Power train (transmission).

Having prepared all the components of the structure and assembled them according to the drawing, you will acquire a unit with good features.

• Powerful. Some handicraft devices have a capacity of 9 horsepower.
• Lightweight.
• Compact.
• Engines used in gasoline saws have a large margin of safety, which makes it possible to work on an artisanal unit for a long time.
• Low cost.

As a sample for assembly, let's talk about the engine removed from the Druzhba chainsaw. It is more suitable for our idea.

For assembly, it is desirable to apply a modification of this fourth generation model.

We make a walk-behind tractor from a chainsaw with our own hands

According to the landowners, who have already experienced all the features of handicraft motor vehicles from a gasoline saw assembled with their own hands, "Druzhba" demonstrates an excellent result after modernization. With the right choice of the power plant for a homemade unit, it works no worse than its industrial prototypes.

The absolute advantages of this device are:

• high power, reaching in some samples up to 4 horsepower;
• lightness - insignificant weight will not make the unit heavier and will add mobility to it;
• small size - a small engine does not require frame reinforcement, which reduces the financial costs of its manufacture;
• economical consumption of fuel and lubricants;
• performance, which is conditioned by the readiness for continuous loads;
• the possibility of using all kinds of fuels and lubricants;
• functioning in a completely autonomous mode;
• applicability for various types of work.

The assembly procedure depends on the drawing used and is subject to change, but the main points of the assembly include the following activities. The frame is assembled according to the drawing.

The work process is organized as follows:

• we take a metal pipe with a cross section of at least 20 mm and bend it so that the overall appearance looks like 2 spars, the end of which is directed upwards;
• in the rear area of the spar, the steering wheel from the motorcycle is welded;
• we strengthen the base with crossbars;
• to the rear bends of the side members, electrically weld the support platform for the battery.

Further work continues on the following points

1. Now we mount a specialized flange, with the help of which the shaft will be fixed to the main structure of the unit from a gasoline saw.
2. At the market of used parts, we buy sprockets from a UAZ car. Through them, the clearance (ground clearance) between the ground plane and the connecting wheel beam will be formed.
3. We take bearings with a 30 mm diameter. We fix them to the main bridge.
4. The gearbox, equipped with a gearbox, is assembled from the engine from the motorcycle.
5. Wheels and cutters of a handicraft motor-cultivator are installed on a metal pipe of the required diameter.
6. Due to the fact that the speed of the walk-behind tractor is small, a forced-type cooling system is required. The simplest solution is to install a fan. And so that the air flow is directed to the cylinder, a protective coating is applied. It could be an old motorcycle gas tank.

After completing the assembly work, it is imperative to test the equipment, doing this with the utmost discretion.

Do not forget to install the weight on the front of the unit, firmly fastening it to the body. This will make it possible for homemade agricultural machinery to maintain the center of inertia. If the element is fixed unstably, the walk-behind tractor will walk during operation, which will lead to the failure of the motor.

Finally

It is recommended to assemble the device under the supervision of an experienced craftsman who understands the technique well. Creating handicraft equipment for the first time, without having practical experience in this area, threatens with unpredictable consequences. In the best case, you will simply ruin the chainsaw, and in the worst case, your health may suffer.

Do not forget that compliance with safety measures and vigilance during the execution of all stages of assembly is a guarantee of stable operation of the device. If possible, buy a factory walk-behind tractor, and use a self-made unit in extreme situations.