Purpose and technical characteristics of generators for walk-behind tractors

A modern walk-behind tractor is a complex unit consisting of many important elements. One of them is a generator, the function of which is to power the electric battery or lighting devices of an agricultural machine. Let's look at the features of choosing a generator for a walk-behind tractor, installing it and making it yourself.

What it is

By generator we mean one of the main components of a small-sized tractor, the main functionality of which is to supply electrical energy to the battery, headlights and other electrical equipment in an agricultural unit (not equipped with a battery - a car battery).

Before installing the equipment, you must study its design. Generator components for walk-behind tractors are presented:

• body - the main part of the structure, with the rear and front covers;
• pulley - an element is used in a device to transfer mechanical energy to the shaft from the motor using a belt;
• stator - performed in the form of a conventional rewind from layers of steel connected together (visually it resembles an ordinary tube, power generation occurs inside it);
• rotor - a rotating component whose cords are connected to slip rings;
• brush assembly - the plastic part is responsible for the stable functionality of the unit;
• voltage regulator - it guarantees the stability of the specified indicator during changes in generator loads.

What does the generator look like (diagram)

Technical characteristics of the model Belarus MTZ-09N

Features of choice

Rural residents and farmers find it difficult to choose suitable equipment for a motor cultivator. But not everything is as complicated as it initially seems. Particular attention should be paid to the main important factor - the power of the unit.

Whatever generator is chosen for agricultural equipment, the specified indicator must be greater than the total load level at which the walk-behind tractor operates.

This approach will help the unit operate normally at a voltage of 220 volts without the possibility of sudden changes in the power line and freely power all electrical equipment located on the equipment.

Without sufficient experience and knowledge, farmers mistakenly purchase products originally intended for vehicles. This option is considered optimal only when using a powerful heavy walk-behind tractor (tractor, etc.). In other options, such a purchase is impractical due to large material costs.

12 Volt generator on a walk-behind tractor

The modern market of electrical appliances offers a huge number of necessary elements that are used exclusively for installation on walk-behind tractors. Due to the wide range of products, farmers get lost and end up with a factory accessory that is not suitable for their agricultural machine.

To eliminate the risk of errors, you need to remember an important rule - for stable operation under a voltage of 12 V, the power of the generator must exceed the total number of powers from all types of loads that arise during the operation of the cultivator.

This is the only way to reduce the likelihood of a short circuit or sudden drop in voltage.

Modification of the Belarus MTZ-09N model engine

There are the following engine modifications that equip the Belarus MTZ-09N - these are the Honda GX270 and Chinese alternatives. The most common is the model with a four-stroke Honda engine, which has a power of 9 hp, one cylinder and a maximum number of revolutions of 3600 per minute.

In order to reduce the cost, the models are equipped with Chinese Kipor KG280 and Lifan LF177 engines, which are similar in their characteristics. However, reviews of such motors are mostly negative, since their service life is significantly reduced. Domestic engines UD-15 and UD-25 are characterized by economical fuel consumption, but the complexity of their design and, accordingly, difficult repairs.

Another alternative are models with the Czech Motor Jikov GH1509 engine, but they are not as popular as the above units.

Brands are analogues of the Belarus MTZ-09N model

It is difficult to find an analogue to such a familiar and reliable unit as the Belarus MTZ-09N, but, nevertheless, machines from the ZUBR, Neva, Centaur or Chinese Grasshopper brands can compete in their performance.

The procedure for installing a generator on a walk-behind tractor

The process of installing secondary equipment with your own hands will take a significant amount of time for beginners, but with the right approach it will ensure stable functionality of agricultural equipment.

The connection is made according to a diagram in compliance with electrical standards, which describes in detail all the step-by-step steps for proper installation.

To perform this, a detailed step-by-step algorithm is used:

1. The element is connected to the main device using two identical wires.
2. From the side of the walk-behind tractor, the connection is made through two blue cords.
3. The red wire is attached to the battery or built-in starter - the choice depends on the specific model of the unit.

The method of connecting the generator may vary depending on the manufacturer. Before starting work, the owner must carefully study all the points in the instructions that are included in the kit and supplied with the equipment.

Testing at the stand

Generator electrical connection diagram

In the process of connecting equipment, do not forget that incorrect connection of the electrical circuit often becomes the source of a short circuit in the winding.

To avoid trouble, it is necessary to carry out all stages strictly according to the agreed algorithm:

1. The generator is connected to the electronic unit of agricultural machinery via two wires. The block contains four cords, two of which are highlighted in blue - it is to them that the energy converter is connected.
2. After completing the step, the black and red cords will remain free.
3. The first is intended for connection with the mass of the walk-behind tractor engine.
4. The latter is responsible for the output of the voltage changed during operation, which is used to power all electrical parts of the unit without a battery (they include headlights and a sound signal).

If the device is intended for equipment supplemented by a battery, then the converted energy will also be sent to charge the battery.

Electrical diagram of a walk-behind tractor

see also

Comments 14

headlight + trolley and you can drive in the dark.
And if the inverter, or what it is correctly called, I don’t know, goes from 12V to 220V for a car, then you get a gas generator. But the inverter from the generator is a topic. there will be success! I just don’t know - will it work without a battery?

You can buy a battery for 2500 and install it. True, the structure will become heavier.

There is a place for the battery on the front adapter (the tractor is made from a walk-behind tractor). I plan to install the battery.

Now install a Mayfun battery and speakers, working with music is becoming more and more fun)))

When I worked in the fields all day long, I had a radio in my tractor so that it wouldn’t be boring. And so only with headphones.

My brother had a bathhouse in the outskirts. So we attached a generator from the T-150 to the motor from “friendship” and a 12V lamp. hung with an E27 base.

it turned out to be a 12v power station

Class! Now you can take girls for rides in the evenings. Well, or charge the batteries.

A modern walk-behind tractor is a complex unit consisting of many important elements. One of them is a generator, the function of which is to power the electric battery or lighting devices of an agricultural machine. Let's look at the features of choosing a generator for a walk-behind tractor, installing it and making it yourself.

How to make a generator for a walk-behind tractor with your own hands

It is quite easy to create such an element if a certain procedure is followed when forming the product.

To collect, you will need an electric motor, which will be installed on agricultural machinery. The DIY generator creation scheme includes the following steps:

1. Initially, the electric motor must be placed on the walk-behind tractor frame. For this, a previously formed frame is used, which is attached to the frame with screws.
2. The electric motor is placed and fixed in the frame in such a position that its shaft and a similar element of the cultivator motor are parallel to each other, without shifts.
3. Next, two pulleys are installed - the first is fixed on the shaft in the gasoline engine, the second - on a similar part of the electric motor being used.

A large role is played by the size of the pulley - the frequency with which it rotates and the proper operation of the entire system depend on the indicator. To avoid serious violations in functionality, the diameter of the pulley must correspond to the calculated indicator specified in the annotation. The best option is to purchase elements whose diameter is 10% larger than the existing one.

Only after completion of the mechanical assembly of the equipment is it possible to proceed to its connection to the equipment. To do this, use the above electrical circuit.

A homemade product - a generator using an engine from a walk-behind tractor. A generator for a walk-behind tractor is installed using the same principle, using the latter’s frame.

Organization of auto switching

Not everyone likes to change the position of the switch with their own hands in the event of a power outage. To avoid having to constantly monitor when the current stops flowing from the main line, it is worth organizing a simple auto-switching system. With its help, as soon as the gas generator is started, it will be possible to immediately organize the transition to a backup source.

To install an automatic switch switching system, you will need to stock up on two cross-connected starting devices. They are called contactors. Their work involves two types of contacts:

• power;
• normally closed.

Additionally, you will need to buy a time relay if you want to give the generator a few minutes to warm up before starting work.

The operating principle of the contactor is simple. When the supply of electricity on the external line is restored, its coil blocks access to the power contacts and opens access to the normally closed ones.

The disappearance of voltage will lead to the opposite effect. The device will block the normally closed contacts and start the time relay. After a certain period of time, the generator will begin to generate electricity, supplying the necessary voltage.

This principle of operation will allow timely organization of blocking of external network contacts and ensure the supply of electricity to the mobile station. As soon as the voltage supply from the main line is restored, the main starter coil will come into operation. Its action will close the power contacts, and this will lead to automatic shutdown of the generator.

To learn how to safely connect a gas generator, watch the following video.

Possible malfunctions and their elimination

Regardless of the quality indicators of the equipment, it periodically requires repair work. The rule applies to both factory-made and independently created units.

If, during the examination of the condition of the equipment, serious malfunctions were identified, then only qualified specialists will be able to resolve the issue. You can try to fix minor damage with your own hands.

A homemade unit does not require complex maintenance, but to increase the service life of the equipment, you must adhere to a certain set of rules:

• if over time the electric motor begins to get very hot, then it is necessary to replace the standard capacitors with elements with lower capacitance;
• The voltage of capacitors installed in electrical equipment plays a big role - options with a value greater than 400 volts are suitable; if standard units have a lower value, then it is better to replace them with more current elements;
• Operation of the equipment should be carried out in dry weather; moisture accidentally penetrating into it can cause a short circuit of the entire electrical system.

If you adhere to and follow these rules, this will prevent equipment breakdown and extend the operating time.

Don’t forget to check the condition of air filters, sensors, and oil level (for certain variations).

It is better to entrust repair work to a professional

Generator for walk-behind tractor Neva

There are many good models of walk-behind tractors on the market (Neva MB 23, Centaur, Zubr, MTZ, Oka, etc.), but not all of them have standard lighting. If a non-electrified unit was purchased, then a small upgrade will easily correct the problem and increase its safety level.

To complete the task, you can use industrial factory solutions or install a self-made device. It can also be used for other domestic and foreign models of agricultural machinery. The entire process is carried out according to the above instructions, with the exact execution of each stage.

However, it is possible to make lighting on the Neva walk-behind tractor without using a generator. All you need is an LED lamp and a 12-volt battery. The battery itself can be installed on the section of the frame between the engine and gearbox.

Installation work to secure the generator is not a complex type. A self-formed element allows you to reduce the level of material costs, but for beginners the whole process will seem quite complicated - due to the need to work with electrical circuits. If they manage to do it, it will be an irreplaceable experience.

The video below shows how you can install an electric generator on a regular walk-behind tractor.

Battery powered lighting

You can make light on a walk-behind tractor without a generator by installing a 12 V battery. The battery from a motorcycle, moped or boat is used as a power source. Don't give up on your car battery. If you put a heavy power source on the cultivator, you can solve several related problems - equip the unit with an electric starter and significantly make its body heavier. In addition, it would be useful to be able to illuminate the area at night without the engine running. This function can be useful on a picnic or night fishing.

Installing the headlight on a walk-behind tractor using a battery is carried out in the following sequence:

1. Arrangement of the frame for the power source. It is best to use a steel corner for this. The frame should be attached directly to the frame of the motor-cultivator body. After lowering the battery into the niche, it is firmly secured in it using steel straps.
2. Attaching a lantern and auxiliary lights. The headlight is placed on the walk-behind tractor so that it illuminates the widest possible sector without blinding the operator or oncoming vehicles. It is better to choose devices with an adjustable beam angle.
3. Location of the electrical cable in the corrugation along the body of the unit. Installation and connection of control devices. Tester checking the correct assembly of the electrical system.
4. Connecting the wire to the battery terminals, leading the wire into the junction box. Connecting wires to the switch, insulating joints, joints and twists.

In order for the battery capacity to last for a long time, LED lamps must be inserted into the flashlights. They consume a small amount of energy, creating bright lighting.

If the battery is not located under the standard hood of the walk-behind tractor, then it is necessary to make a separate casing. To do this, you can take a piece of thick plastic, give it the desired shape and screw it to homemade racks on the frame.