How to reverse on a power tiller

How to make a reverse speed on a power tiller without reverse on your own

What is a single axle tractor?? It’s the same tractor, but a miniature one. And one more important difference: it is single-axle, the role of the rear axle is performed by a man who drives the tractor with the handlebars on the steering wheel. In Soviet times, such equipment was not in demand, because for plowing your garden could use the collective farm equipment for a small fee or even free. Who does not know. there were no problems with fuel in those days. When kolkhozes faded into oblivion, such equipment turned out to be in demand, as it greatly facilitated basic agricultural work on relatively small plots. Low weight, high maneuverability, ability to use almost the same set of attachments as on tractors. these are the main advantages of power tillers and their variety. power tillers, where the wheels function as a mill, cultivator or other attachments of similar type. Add to this a significant difference in price compared to tractors, even small ones, and you can see why such equipment is very popular among private individuals.

As with any other self-propelled vehicle, the walking tractor has a gearbox that allows you to adjust the speed of cultivation of the land. Many models are equipped with a reverser, which facilitates maneuvering. But quite a few power tillers are also produced without reversing. If you need to make a U-turn on a restricted area, these machines have to be turned by hand. If the weight of the power tiller is small, 30-40 kg., it is not a problem. But our homegrown farmers prefer heavy machines. they can handle the soil of any composition, including heavy. However, maneuvering a power tiller that weighs over a centner is not a task for physically weak people. That is why many owners of such equipment after one or two years of operation decide to finalize their power tillers on their own.

If you think this is a task that requires a lot of technical know-how, you’re only partially right. Yes, technical knowledge is necessary and we give it to you. The rest depends on whether you have direct hands or not. But since you work on the ground you presume you have everything you need. So let’s study the question.

The device

Let’s get acquainted with the typical schematic diagram of this Krot motocultivator

When you get acquainted with the unit device, you can safely run to the repair and maintenance of power tillers.

  • washing;
  • cleaning;
  • greasing;
  • control;
  • refueling;
  • inspection;
  • fasteners;
  • adjustment of all units and systems

Such work should be done as often as possible, especially if you have to work in adverse conditions.

Before starting the cultivator motor, check the presence of fuel, oil, etc. д. Add oil to a certain level, change oil and fuel as needed. Cultivators use oil Avtol (M-8B), which has proved itself in the Soviet Union.

If it is difficult to get it, you can use analogues:

Adjustment work involves debugging the clutch, reverse, carburetor, spark, etc. д.

Cleaning works include cleaning of the filter, working surfaces, body and all clogged parts on the surface of the Krot motocultivator. If any defects appear or for preventive purposes (less often) it is necessary to clean the inside parts of the machine.

Before you put any part back in its place make sure it works.

Installing or changing at least any outboard equipment should take place at full power off the engine. When preparing for long-term storage the power tiller requires preservation. For this purpose it is necessary in a specific way to prepare the engine (see the annotation), then to clean (wash) and dry all external parts of the Mole, wipe them with a rag, perfectly drying. Lubricate all accessible parts of the machine with grease. Now the machine is ready for a long rest.

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The first modifications “Mole” are not equipped with a reverse function (reverse speed), which somewhat affected their performance and ease of use with such attachments as a cart, snow blower, mower, etc. д. To modify the “Mole”, the manufacturer has released new modifications, already with the reverse function, greatly improving the mobility of the cultivator.

The engine choice

In the Soviet Union were used only two-stroke single-piston engines made in Russia, not particularly powerful. Now you can meet “Mole” with a four-stroke imported engine. But if in your arsenal is still available 1st model cultivator, the modernization of your “Mole” by replacing the motor is easy.

And here arises a new question: what engine is better to install on the machine? It is not difficult to answer this question. the models that are installed in newer machines are suitable.

The best way is to replace the Russian motor with an imported one:

Any of them not only give a motocultivator new life, but also greatly increase the power and resource aggregate.

A good solution would be to install the motor Lifan on motocultivator “Mole”. Such a motor provides the car a long life, because in addition to reliability and efficiency, Lifan stands out moreover unpretentious and will definitely not require additional attention to themselves.

How to increase the speed of a power block

There are two ways to increase the speed of a motorblock:

Let’s see how changing the wheels helps to increase the speed of the walking tractor. The standard tire size for almost all models of mini-aggregates is 57 cm. When replacing, you can install tires that are 1.2 times larger in diameter. Wheels of 70.4 cm are usually used. Despite the small difference, the speed of a power tiller increases noticeably. If the arches into which the tires are inserted will allow you to insert wheels with a larger diameter, you can try adding centimeters.

When using a power tiller to cultivate the ground, you use the grousers. These wheels are wheels with iron plates, freely meshing with the ground or snow. They can be purchased in specialized stores, or you can make them yourself. Their size also affects how fast the machine travels.

How to reduce the speed of a power tiller

For certain tasks (plowing virgin and heavy soils) some models of power tillers may be too fast; in this case it is necessary to reduce the speed.

Without changing the machine itself, it is possible to use a reduction gear, which is present on many models. This option allows you to reduce speed without reducing power, allowing you to work the soil more thoroughly.

To reduce speed, you can reduce the diameter of the wheels or replace the gear pair in the wheel gearbox by changing the gears. Usually there are different size gears, with the number of teeth 61 and 12, to reduce speed, you should change them so that the number of teeth on the larger sprocket increases.

How to use

The basis. to buy the engine correctly, trace how it is installed on a single-axle tractor. And also properly follow the instructions, take care of the engine when operating it. The first thing to do even before purchasing the product. get expert advice on the peculiarities of using the machine

It is important to carefully read the instructions for installation, work, so as not to make mistakes during operation. It is necessary to conduct systematically preventive maintenance. change the oil, clean the components

When it can be seen that the engine does not function steadily, turn for help to the service center. The warranty document will be helpful. The causes of failure are many, so if you do not have repair skills, it is correct not to fix it yourself, so as not to worsen the situation. An expert will precisely find the cause, determine whether it is necessary to replace the oil seal on the crankshaft, whether to use a different fuel, whether it is necessary to replace the wire inside.

How to make a gearbox for a power tiller with your own hands

Making a gearbox for a motor-block with your own hands. a difficult and at the same time interesting task. This is one of the important mechanisms, without which the work of garden equipment using a crabapple is unthinkable. Its main task is to reduce the speed of the drive shaft and simultaneously increase or decrease the torque on the drive.

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Types of mechanisms

According to the way of work and action, all converting mechanisms for power tillers are divided into several types:

To redirect the rotational energy from the vertical drive to the horizontal plane, an angular reducer using bevel gears (bevel gear) is used.

reverse, power, tiller

Reducing the number of revolutions and increasing the power of the driving mechanism are provided by reduction gears, or stroke-reducers for the motor-block. They are considered the most reliable for air-cooled diesel or gasoline power tillers. This allows them to be used for particularly heavy work. such as plowing heavy soil or harvesting potatoes with a potato digger.

Plow for power tiller

The regulating assembly that allows the plow to enter the fertile ground unobstructed consists of several important parts:

It is in these parts that the direct ridge heel from the plough is inserted. Due to technical features, it rotates on a vertical plane, while using axial and bushing joints. Rotational angle is set with the help of pin numbered M16. Stud is welded to the pivoting heel. (See “Auxiliary Wheel” on page 56). A plow for a power tiller with his own hands).

To the immediate ridge is attached a knife of cutting nature. The normalized installation is carried out using a standard clamp with a cover plate and two bolts numbered M12 with universal nuts. A V-shaped bracket with an auxiliary wheel is installed on the front part of the power unit. The main purpose of this element is the transport ease, unobstructed backward movement.

All the direct control of the created transport, that is, power tiller is carried out by means of a power tiller, a crank handle and two rods.

How to make a homemade single-axle tractor with a motorcycle engine, photo video instruction

Deciding to make a single-axle tractor independently from a motorcycle engine, it is necessary to be guided by an important condition. it is the minimum overhaul and remodeling, as well as the maximum use of used nodes. Of course, experience and knowledge, patience and enthusiasm are required for the mole to work properly. Applying these simple rules, the final work will be an excellent farm vehicle, adapted to all conditions. In the event of problems and malfunctions, the basic repair will be a simple replacement of the defective part.

A kinematic multistage transmission scheme must be developed for the normalized activity of the power block. It increases the drive ratio, torque and tractive effort. Also together with the gearbox adapter in the whole scheme provides for the main gearbox. The most highly efficient engine is obtained by combining the main gear with a geared wheel set.

Thanks to a specialized mechanism, the drive chains are effectively tensioned. This element is attached to the sliders by means of studs made of steel angles, which, in turn, are able to move freely, tension, as well as loosen the drive chain. A pair of adjusting screws with fixing bolts numbered M10 allow for the above functions.

The main gearbox is considered one of the most complex constructions. it is made of 10 mm steel plate. The mounting bearing place is equipped with reinforcing discs. Special solid welds are made to prevent oil leaks. Rear gear wall includes a bracket in its structure. It is able to fasten both whole truck carts and agricultural trailed equipment. If you attach the cart to a power tiller, you get a real miniature tractor.

( 1 ) How to make back speed, Neva 2.

Gearbox cover is made of five millimeter steel plate. It is freely attached to the body thanks to M6 screws. All straight toothed gears are taken from agricultural machines.

Locking the wheels of a power tiller with a motorcycle engine

An important technical solution for the power tiller is the correct wheel locking. It is obligatory to carry out sharpening of the cylindrical neck, located on the right half-axle next to the spline end. A tapped hole is made on the other axial side. During the rotation of the screw numbered M12, a certain displacement is performed under the action of a cylindrical spring. After the specified moment there is a departure of the half axle from the pinion. This is how the wheels are blocked.

The wheels are made of electric cartwheels. Sixteen grooves are cut in all wheels. A plate made of steel is welded there. Then the lintels are added, which form the rim of the plowing elements.

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Instructions for use

In the enclosed instructions for the Krot power tiller, the manufacturer specifies the following information:

  • Adjustment of mechanisms and troubleshooting;
  • Follow all safety precautions when working with the machine;
  • The way in which the machine is used;
  • information about the shape and design of the machine.

To keep your power tiller operating reliably and for as long as possible depends on correct, regular maintenance and proper, constant care. The user must perform simple maintenance tasks on the machine. If this is the case, the cultivator can last more than 10 years.

As a fuel it is necessary to use a mix of gasoline of АI-80 or АI-76 brand and oil of M-12-TPTU or M8B1 brand.

Correct and regular maintenance is essential for the performance of a power tiller

Oil level should be constantly checked and corrected if necessary. Dirt must be removed after each use. At the end of the procedures, the farm machine is wiped dry, and its working units are lubricated.


Technical specifications of this modification are the same as the previous model. The main difference is the presence of Honda GC135 engine in 4 liters.с.

single axle tractor has a chain reducer and belt clutch, as well as rear and front speed. The weight of the device is 53 kg, its steering column has only one position. Cultivation width varies from 34 to 90 cm. Same dimensions as MK-4-03.

No spark

The cause of lack of spark is a faulty spark plug, viz:

  • fouling. make cleaning of the spark plugs;
  • spark spark appears, but engine doesn’t start. oil or fuel got on the spark plug tip;
  • fuel from time to time floods the cylinder, which leads to dampening of the spark plug and absence of spark;
  • spark plug failure;
  • Failure of the o-ring is a possible cause.
reverse, power, tiller

Another reason why the Mole single axle tractor won’t start is in the malfunctions of the electric ignition

Replacing the belt

The belt for your Mole should be purchased according to the manufacturer’s instructions. Installing unsuitable models from unknown manufacturers will cause additional problems.

To replace the belt, proceed as follows:

  • Shift into neutral and turn off the motor.
  • Dismantle the tread guard and old belts.
  • Even if one of the belts is not worn enough, replace both. Use a pair of scissors for the removal.
  • Remove the pulley from the drive shaft and place the new belts on the pulley of the gearbox shaft.
  • Take the removed pulley and put the belts on it and install it on the engine shaft. Set the key correctly, otherwise the pulley will not turn.
  • Make sure that the belts are not misaligned and run them over the tension pulleys.
  • Reattach the tread guard.

Will not start

If the Mole single axle tractor does not start, you need to check such parameters:

  • Check fuel supply to carburetor;
  • the position of the control lever;
  • Inspect the spark plug;
  • Check that there is fuel in the tank.

Check fuel flow into carburetor if single axle tractor won’t start

It is important to determine why the Mole single axle tractor does not start, the causes may lie in the malfunction of the electrical ignition.

  • Unscrew the spark plug. If it is dry, it is a sign that no petrol is getting to the carburettor. Dry the cylinder and pump the engine when the spark plug is wet. If carbon deposits are visible, clean off with sandpaper soaked in gasoline.
  • Check ignition by turning the crankshaft. Normally a bright blue spark plug should be visible.
  • Replace the spark plug if the problem persists.
  • Check that the clearance between the coil and the ignition wire is set correctly.
  • Check that the fuel hose is in good condition.
  • Check if there is no contact between the magneto wire and the flywheel.

Undetected violations during self-check. a reason to contact the service center for professional repair of the machine.

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