Mole cultivator ignition how to set up. Design, repair and maintenance of mole motor-cultivators Electrical diagram of a mole motor-block

Before you start repairing the Mole motor cultivator yourself, you need to know whether it is subject to warranty service. If the warranty period has not yet expired, contact the appropriate workshop. There the equipment will be repaired and the warranty will be extended for a certain period of time.

You need to know that after turning on the walk-behind tractor for the first time, the engine is not given full load. The instructions indicate the break-in period, since all parts must be ground in, otherwise the engine and gearbox will have to be repaired in the near future.

But if your walk-behind tractor is already quite old and does not have warranty service, you can try to make a small repair of the mole walk-behind cultivator yourself. It is not very difficult and even a not very experienced person can cope with this task. "Mole" is a simple device. To do everything correctly, first read the instructions and the unit diagram, because knowing the structure of the machine, you can also repair it.

Frequent malfunctions

When we talk about repairing the Mole walk-behind tractor, it is worth listing the following breakdowns and how to fix them:

• Faulty ignition– a common breakdown of the Mole walk-behind tractor. First, check the spark plug - it is unscrewed and inspected. A dry spark plug indicates that the fuel mixture is not getting into the cylinder. If the spark plug is very “wet”, “pump” the engine with a manual starter - this way you can dry the cylinder. If there is a lot of carbon on the spark plug, clean it with fine sandpaper and gasoline.
• Gap between electrodes Usually it is 0.8mm, adjust it if necessary.

Faulty ignition - common reason repair of motor cultivator "Mole"

• No spark. This means the spark plug is faulty, just install a new one ( LINK for candles from Aliexpress). It is also possible that there is no contact in the electrical circuit or the gap between the magnetic circuit and the ignition coil is broken.

The ignition of the Mole walk-behind tractor depends on condition of gasoline hoses, insulation of high-voltage wires and their connections. Check everything carefully, flywheel plates MUST NOT touch the magneto cores. Make sure there are no traces of touching.

• The air filter needs to be checked. If it is dirty, not enough air enters the carburetor. Even a dirty muffler affects engine power.

Have you been unable to find the ignition fault? Contact a specialist; you cannot cope with a serious problem on your own.

We give a small recommendation for selecting a specialist to repair the “Mole” - website Profi.ru. Select your city and look for a specialist; the probability of finding a good specialist is very high.

What to do if the problem is in the engine?

Most often, owners of cars of this brand are faced with engine problems, for example, it does not start or its performance is unsatisfactory. Among the signs of a breakdown: spontaneous stopping, power does not gain, interruptions are heard.

Here is a small instruction on how to determine the breakdown:

1. Check the ignition;
2. Make sure there is fuel in the gas tank;
3. If you doubt the flow of fuel to the carburetor, check the fuel filter;
4. Clean it if necessary;
5. Start the cold engine;
6. The carburetor choke must be closed.

If you cannot find the cause of the malfunction of the Mole motor cultivator and fix it yourself, contact a specialist

Prevention and operating rules

To prevent malfunctions of the Mole motor-cultivator, you need to know the basic rules for its storage and operation. They depend on how long the equipment will be inactive.
If you will not use it for a long time, here are a few rules:

1. You need to start the engine so many times that carburetor remains empty.
2. Machine parts that move and rotate must be carefully lubricated with high-quality oil.
3. Daily Maintenance Necessarily.
4. Walk-behind tractor surfaces wiped daily with a rag saturated with fuel mixture.
5. If any parts fail install new spare parts.

If you want to operate the Mole walk-behind tractor for a long time, without repairs, be sure to undergo maintenance. Do not buy cheap, “left-handed” spare parts. Only original spare parts will ensure high-quality operation of your equipment after repair. Regular inspection and maintenance guarantee a long service life.

Video instructions

If you don’t yet have a Mole cultivator, but you are thinking about buying one, be sure to watch this useful video about all the advantages of this machine:

Now you can buy any equipment in earthworks stores, but many farms use walk-behind tractors and motor-cultivators from the stagnation period.

Other owners have been using Mole walk-behind tractors for 20 years and suddenly there is a breakdown - the MB-1 electronic ignition unit has failed.

The main disadvantage of the MB-1 electronic unit is its miniaturization and circuit defects,

Although there is a proven option with light motorcycles and mopeds - a generator coil, electronic filling and an ignition coil - there are no separate components and no problems in the ignition system.

And in MB-1, the winding of the generator coil is made with very thin wiring and the ignition coil is small, and most importantly, the electronic part of the circuit is located on the engine crankcase and heats up to 80 degrees. And the KU202N thyristor used in the circuit is designed for 75 degrees. That's why there are constant malfunctions. The same thyristors were used in ignition circuits used on light motorcycles and mopeds and worked reliably. The thin winding wire of the generator coil does not allow generating more current and installing a storage capacitor of 1 µF.

Try to separate these ignition elements. I’ll give you an example of how a friend from the forum improved the ignition unit.

A car ignition coil was found. An electronic circuit is mounted in the body of the burnt switch.

The ignition coil was mounted on the steering wheel plate of the walk-behind tractor.

What remained from the original MB-1 unit was a generator coil and a sensor coil; in place of the original ignition coil I installed a second generator coil,

you just need to adjust the seat to fit it.

A flywheel with four magnets is installed on the walk-behind tractor, one of them is turned upside down, so as not to overthink the phrasing of the windings - each generator coil has its own diode bridge.

After all the modifications - repeated ignition reliability. Military-grade T 122-25-8 thyristor, thousand-volt diode bridge, eternal ignition coil.

Electrical diagram ignition:

The figure on the right shows the connection of the generator coils. Connect at points A B in the left diagram.
Diode bridge – RC207.
Capacitor C 1 - 1 µF.
Thyristor - 10 amperes and 800 volts. I installed - T 122-25-8. 25 A 800 V.
Diode VD1 - type HER308, fast acting.
Diode VD2-1N4007.
Resistor R1- within 2 kOhm.
The best part is that starting a walk-behind tractor is a pleasure.

The “Mole” motor-cultivator appeared in the early 80s of the last century and immediately gained popularity among rural residents and dacha owners. This is not surprising, because with the help of this agricultural technology, mechanized soil cultivation, as well as planting, care and harvesting, became possible.

Over more than 30 years of its existence, “Mole” has been modified more than once. Such parts as the engine, gearbox, handles, cutters, as well as other equipment (including attachments) were brought to perfection. Having gone through a difficult path of improvements, we no longer received the original motor cultivator, which has some limitations in operation, but a multifunctional motorized device, with which we can easily carry out the following field work:

• plowing the soil;
• cutting beds;
• planting potatoes;
• spud of plants;
• weeding plants from weeds;
• mechanized potato harvesting;
• mowing;
• irrigation;
• transportation of bulk and piece goods;
• snow removal.

In order to perform all of the above work, you need to acquire the appropriate tools. You can find out more in the article about on our website.

Crow's feet Weeder Okunchik T Plow
Mounted mower Pump installation
Diggers Potato digger KRT-1

No matter how powerful your unit is, no matter how much you care for it, sometimes it still requires repair - the engine won’t start, the engine gets hot, or some other malfunction... To know how to repair a motor cultivator, you need to understand its structure.

Device

Let's get acquainted with the typical diagram of this Mole motor cultivator

Once you have become familiar with the structure of the unit, you can safely move on to the repair and maintenance of motor cultivators.

Common breakdowns

What machine elements may require the operator's close attention?

Engine Magneto MB-1K
Carburetor K60V
Gearbox
Air filter

Let's list them:

• motor;
• magneto, ignition system;
• carburetor;
• gearbox;
• air filter, etc.

Now let’s take a closer look at all those malfunctions that can affect the performance of the unit, no matter what model it belongs to.

Spark plug

Won't start

So, what to do if the “Mole” does not start, what could be the reasons for this? The ignition fails or there is no ignition at all in the following cases:

• No spark. This could mean the spark plug is burnt out. In this case, you need to unscrew it and simply replace it with a new working one.
• The spark plug is smoked. A good cleaning will bring it back to life (remove carbon deposits, clean the contact), after which the spark plug must be thoroughly rinsed in gasoline.
• If the cultivator does not start, but there is a spark, then most likely the reason is a lack of insulation. We look at the candle again, in this case it is wet or slightly damp. You don't have to change the entire spark plug; you only need to replace the tip.
• Poor quality fuel may cause the cultivator to fail to ignite. It is for this reason that the spark gets wet, after which you will have to change the tip.
• Fuel dripping from the spark plug is another reason why the car will not start. To rectify the situation, it is necessary to drain the cylinder by bleeding the engine using a manual starter.
• The reason for the lack of ignition may also be problems with the fuel supply hoses. To restore the operation of the cultivator, it is necessary to either properly tighten the hoses, or, in case of rupture, replace them with new ones.
• Poor insulation of the electrical system (high and low voltage wires) can also cause the unit to not start.
• Pay attention to the air filter. If it is dirty, then problems with ignition are guaranteed. It needs to be either cleaned or replaced. Most often they resort to the second option, fortunately, this spare part is available both in price and in availability in the store.
• Failure of the magneto itself. This part cannot be repaired and is immediately replaced with a new one. How to check the magneto of the “Mole” motor-cultivator to make sure it is faulty? Yes, it’s very simple - if all the reasons why there may be no spark are excluded, then the cause of the malfunction is in the magneto. Many craftsmen rework the working magneto, thereby increasing its service life.

This is what the Magneto ignition circuit for the “Mole” motor cultivator might look like

• There may be no ignition if the flywheel plates jam the magneto cores.
• An incorrectly set gap between the electrodes will not allow a spark to escape.

Video review of the modernization of the ignition of the “Mole” motor cultivator

As you have seen, setting the ignition is not so difficult.

Engine

The main reasons that the “Mole” engine does not start are:

• lack of fuel (or its low quality);
• ignition problems discussed above;
• the appearance of decompression and, as a result, piston wear and deformation of the exhaust valve.

In the first case, it is enough to simply fill in the required amount of fuel (a mixture of gasoline with M-8V autolom oil) and all problems will be resolved. In the case of a compression failure, you will have to completely disassemble the engine and replace damaged parts, and this could be a piston or an o-ring.

Deformation of the exhaust valve becomes another cause of compression failure, which leads first to a loss of power of the “Mole” motor-cultivator, and then to starting problems.

To restore engine functionality, it is necessary to completely disassemble it. Having assessed the condition of the piston, replace it if necessary. We change the piston rings and exhaust valve. We examine the engine head, in particular the gas distribution mechanism, and if there is carbon deposits, we clean it. If structural elements are damaged, we replace them with serviceable ones.

Motor selection

During the Soviet Union, only two-stroke single-piston engines were used domestic production, not particularly powerful. Today you can find “Mole” with a four-stroke imported engine. But if you still have the first model of a cultivator in your arsenal, then upgrading your “Mole” by replacing the motor is not at all difficult.

And here a new question arises: which engine is better to install on the unit? It’s not difficult to answer - those models that are installed in newer cars are suitable.

Engine Hammermann CF 168 F65 Engine GeoTec Engine Subaru
Engine Honda GX160
Engine Briggs&Stratton 550 Engine Lifan 168 F-2

It is best to replace the domestic engine with an imported one:

• Hammermann
• GeoTec
• Subaru
• Honda
• Briggs&Stratton
• Lifan

Any of them will not only give the motor-cultivator new life, but will also significantly increase the power and resource of the unit.

Engine Lifan 168 F-2

An excellent solution would be to install the Lifan engine on the “Mole” motor-cultivator. Such a motor provides the car with a long life, because in addition to reliability and efficiency, Lifans also stand out for their unpretentiousness and definitely do not require additional attention.

Video review of replacing the engine on a Lifan 168 F-2 with a Mole cultivator

Carburetor

Carburetor K60V

What is a carburetor and why do you need to adjust it? A carburetor is a small device designed to produce a fuel-air mixture. This mixture, with the help of a piston and spark plug, will be maximally compressed and ignited, starting and further work engine.

Carburetor adjustment must be carried out after the first working season.

Carburetor adjustment is one of the mandatory points included in the “maintenance” section of the unit. Thanks to timely inspection and repair, the service life of the cultivator will increase. In addition, inspection and adjustment are also necessary when the engine roars strongly for no apparent reason.

Before we begin the adjustment, we need to familiarize ourselves with the design of the carburetor of the “Mole” cultivator:

So, to debug the fuel supply and ensure the required speed, you need to turn to two screws: the number of revolutions (in the figure) and the quality of the fuel (figure). Using these two screws, we adjust the fuel supply to the carburetor of the “Mole” motor-cultivator at idle speed. You must act very carefully; first check the state of the ignition.

Important! Thoroughly clean the carburetor, where necessary - strip it, wash it, where necessary - change parts. Then the Mole motor cultivator will serve you for a very long time.

Owners of the unit are often interested in how to start the “Mole” cultivator after winter. The reason for the lack of ignition is condensation in the carburetor that has accumulated during inactivity at changing temperatures. Complete disassembly of the device and further cleaning will help solve this problem. All kinds of additives found in low-quality fuel and dust that has seeped through the filter will also not contribute to the operation of the device.

Gearbox

Gearbox

The main task of the gearbox is to transmit torque from the engine to the shaft. The transmission of motion is carried out using a V-belt transmission. You can learn more about the design and repair of the gearbox of the “Mole” motor-cultivator by watching the video.

Video review of the Mole motor-cultivator gearbox

Reverse

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

Video review of the reverse function on the Mole motor-cultivator

Drive belt

Drive belt

The drive belt transmits torque from the engine to the gearbox. The cause of breakdown of the “Mole” motor-cultivator is often a rupture of the drive belt. This occurs due to the belt jamming during operation due to heavy loads on the working parts of the cultivator (hard soils, blunt cutters). The cutter bends and catches the belt with the knife, thereby rendering it unusable.

Drive belts for the “Mole” cultivator can have various modifications, but their dimensions are strictly defined:

• 710 mm;
• 750 mm.

Maintenance

What does maintenance mean? This is a series of measures that ensure proper operation and proper storage of equipment. Maintenance of the Krot cultivator means the following work:

• washing;
• cleaning;
• lubricant;
• control;
• gas station;
• control;
• fasteners;
• adjustment of all blocks and systems

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

Before starting the cultivator engine, it is necessary to check the presence of fuel, oil, etc. It is necessary to fill the mixture to a certain level, and if necessary, replace the fuel and oil. For cultivators, Avtol oil (M-8V) is used, which proved itself during the Soviet Union.

Oil 8-B Oil 10W-30
SAE 30 oil

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

• 10W-30 (do not use at temperatures above +27 degrees);
• SAE 30 (do not use at temperatures below +4 degrees).

Adjustment work involves adjusting the clutch, reverse gear, carburetor, spark, etc.

Cleaning work includes cleaning the filter, working surfaces, housing and all clogged parts on the surface of the Mole motor-cultivator. If malfunctions occur, or for preventive purposes (less often), it is necessary to clean the internal parts of the machine.

Before putting any part back in its original place, make sure it is in good working order.

Installation or replacement of any attachments must be carried out with the engine completely turned off. When preparing for long-term storage, the motor cultivator requires conservation. To do this, you need to prepare the engine in a certain way (see the instructions), then clean (rinse) and dry all the external parts of the “Mole”, wipe them with a rag, drying them well. After this, you need to lubricate all accessible areas of the cultivator with grease. The unit is now ready for a long rest.

The Mole motor-cultivator became one of the first domestic products of small-sized agricultural machinery, in general the first motor-block, the mass production of which was organized in our country. From 1983 to this day, Krot motor cultivators have been produced at a number of machine-building enterprises from Moscow to Omsk, and in the 2000s - also at Chinese plants and factories. During this time, how has the walk-behind tractor shown itself in the hard-working hands of summer residents, gardeners and farmers? What are the features of its design, advantages and disadvantages? How is “Mole-2” different from “Mole-1”? Read on.

The specific purpose of the “Mole” motor-cultivator is to perform a wide range of agricultural work on soil cultivation. In summer cottages and household plots, in vegetable gardens and farmsteads. The owners of these small “lands” know from experience that digging them up by hand only requires a significant investment of time and physical effort. And the Mole walk-behind tractor is designed to save time, energy and health of its owner.

This small (both in size and power) agricultural technology is used primarily for loosening, leveling, and harrowing land on small (up to 0.1 hectares) plots of land. The instructions for the Mole walk-behind tractor indicate that it is intended for shallow (up to 25 centimeters) tillage (milling without turning the layer) of soil; its loosening, harrowing, leveling, weeding between rows and other similar work “on personal plots, vegetable gardens and garden plots with a cultivated area of ​​0.04 to 0.1 hectares).”

The main tillage operations are carried out using the working part of a motor cultivator - a milling cutter (rotors with specially shaped knives). Torque from the engine through a V-belt drive, gears and sprockets with a chain is transmitted to the gearbox shaft with rotors mounted on it. When rotating, the rotor knives cut off layers of soil, crumble and mix them, while simultaneously causing the forward movement of the motorized cultivator.

Compared to a plow, a milling machine better loosens the soil, crushes the roots of weeds, and evenly mixes organic and mineral fertilizers with the soil throughout the entire depth of cultivation. Manufacturers assure that the use of the Mole motor-cultivator is possible even on heavy soils and when cultivating virgin lands.

Additional attachments significantly expand the scope of application of the Mole walk-behind tractor. In particular, it can be used to carry out inter-row weeding; hilling potatoes; mowing the grass.

The Mole walk-behind tractor can also be used for pumping water from open reservoirs and containers. To do this, a pumping unit is installed on its frame, connected by a V-belt drive to the engine. And the V-belt drive is removed from the traction gearbox. Pumping unit"MNU-2", used for this work, naturally, is purchased separately.

The “Mole” can also be of some use for transporting cargo weighing up to 200 kg on a small-sized trolley “TM-200” with a rotary coupling device. Rubber-coated wheels are put on the output shafts of the gearbox.
“Mole” is relatively easy to handle, does not require a large storage space, and its low weight and dimensions make it easy to transport.

Description of the design of the Mole walk-behind tractor

The frame, consisting of two half-frames, is bolted to the gearbox. Tubular cultivator control handles and a bracket for installing additional attachments are located at the rear of the walk-behind tractor. The handles contain controls for engine speed and clutch (on the Krot-2 modification, reverse gear is also engaged).

The output shafts of the Krot gearbox are equipped with soil cutters, 320 mm in diameter, for plowing the soil, weeding or wheels (for working with a hiller (or plow, as well as for operating a cultivator with a trolley). An internal combustion engine is attached to the frame, connected by a V-belt transmission to the input shaft of the gearbox.

The fuel tank is located on top. Lifting wheels are used to roll the cultivator, but during operation they must be raised or removed.

The Mole walk-behind tractor works according to this principle. The rotating motion is transmitted through the V-belt to the gearbox, and then to the two output shafts. After engaging the clutch, the belt is tensioned, driving the gearbox shaft. During idle operation, the clutch is disengaged.

The gear shaft, equipped with cutters - rotors with special knives, rotates and cuts off layers of soil, simultaneously crushing and mixing it. Thus, with progressive movements, the “Mole” makes its way forward.

Directly when purchasing a walk-behind tractor, the set includes four cutters that are installed on different sides of the gearbox shaft. There is also the possibility of using six cutters at once. The depth of loosening will depend on the length of the attached coulter.

To ensure that the walk-behind tractor does not get stuck in place, “burrowing”, or that it, on the contrary, does not “run along the surface” of the earth, rising to the top, the operator needs to adjust the depth of cultivation throughout the work. Thus, using the handles of the “Mole” it is necessary to periodically press it into the soil, or, conversely, lift it.

Technical characteristics of motoblocks “Krot” and “Krot-2”

• Overall dimensions in working position: Length: 1000-1300 mm; Width: 350-800 mm; Height: 710-1060 mm.
• Working width: from 350 to 600 mm.
• Diameter of cutter (rotor with knives): 320 mm.
• Weight (without fuel mixture in the tank): 51.5 kg.
• Tillage depth – 250 mm;
• Milling productivity is 150-200 square meters per hour.

The classic Krota engine is a single-cylinder, two-stroke carburetor, with forced air cooling.

The working volume of this engine is 60 cubic centimeters. Power – 2.6 horsepower, or 1.91 kW (at 5500-6500 rpm). Starting the engine is manual, carried out with a matusk rope, the starter is non-removable.

The latest models of the Krot-2 motor-cultivator are equipped with more powerful 4-stroke engines made in China. The single-cylinder GreenField GX series engine has an overhead valve arrangement and a piston with a cast iron liner. The working volume of such an engine is 198 cubic centimeters.

The carburetor on the MK-1 Mole walk-behind tractor is the same as on the Sh-50 or Sh-52 engines of the popular Soviet mopeds “Riga”, “Verkhovyna” or “Karpaty”: brand “K-60V”. By the way, a large number of other parts from Soviet mopeds were used in the design of the Krot engine. The Krot-2 walk-behind tractors have not only an engine, but also a different carburetor - the K41K brand.

The engine air cleaner is dry, with a replaceable filter element. The older generation remembers that in the USSR a collapsible oil filter was produced for Zhiguli cars, on which the same filter element was installed as on the air filter.

The Krot engine runs on low-octane gasoline A-76 (or A-80 in post-Soviet times), mixed with M-8B1 motor oil (Avtol), in a ratio of 20 to one. The volume of the walk-behind tractor's fuel tank is 1.8 liters.

Ignition is an electronic contactless magneto “MB-1”, as on the Druzhba and Ural chainsaws common in the USSR. Spark plug "A-17B". However, even with the “A-11” spark plug, the cultivator engine operates stably, carbon deposits do not form on the spark plug, and glow ignition is not observed. The average fuel consumption (for the Krot-2 walk-behind tractor) is 0.96 l/kW per hour.

Transmission

The engine of the Mole walk-behind tractor is made in a single block with a single-stage gear reducer (motor transmission). The Krot-2 motor cultivators also have reverse gear. Lubrication of the motor gearbox is “M-8B1” engine oil (It is also acceptable to use “TAD-17” transmission oil (SAE 85W90).

There is a pulley on the output shaft of the motor gearbox. Through a V-belt drive, torque is transmitted to the pulley of the main gearbox.

The walk-behind tractor's clutch is always disengaged and is engaged with a handle, like on a motorcycle or moped. When the clutch is engaged, the V-belt is tensioned, its slipping along the pulley is eliminated, and torque is transmitted. The main gearbox is two-stage (chain and a pair of gears). Lubricant - transmission oil "TAD-17" (SAE 85W90).

During pre-sowing tillage:
Contrary to popular belief, the MK-1 Mole walk-behind tractor does not plow the land, but cultivates it (which is reflected in its name: motor-cultivator). That is, it loosens and levels its top layer.

Soil cutters are mounted on the output shafts of the gearbox; the transport wheels are raised, a coulter is attached to the bracket, acting as a brake and regulating the depth of processing. The cutters are the working body and, at the same time, the mover of the Krot motor cultivator.

The walk-behind tractor is equipped with a set of cutters (two internal and two external – respectively: “right” and “left”). When developing complex (virgin and fallow) lands, it is recommended to use only internal cutters.

On relatively light (horticultural) soils, it is permissible to additionally use a third set of cutters (purchased separately). With six cutters, despite the increased load, the Mole motor-cultivator works well, and is even more stable, without tending to “burrow” into the soil.

But the MK-1 Mole walk-behind tractor can no longer handle eight cutters. More precisely, it will pull, but with great difficulty - with overload and overheating of the engine and the risk of breaking the handles. Therefore, it is not advisable to overdo it with cutters. You can try and plow the land; mounted plows for walk-behind tractors are available for sale. The more powerful Krot-2 is capable of more or less satisfactorily coping with this task.

Initially (in 1983), the MK-1 Mole was released as a single-purpose agricultural machine - a “milling-type cultivator.” A number of additional attachments (weeding knife, hilling plow, mower with a segmented cutterbar) were developed for the Krot in subsequent years.

As a result of these additions, the motor-cultivator moved into the category of walk-behind tractors, and became on a par with classic walk-behind tractors - such as the popular MTZ-0.5.
When weeding:
For inter-row weeding, it is necessary to install L-shaped weeders on internal cutters instead of soil cultivation knives. And in place of the external cutters, install plant protection discs (purchased separately).

When hilling potatoes:
Instead of soil tillers, metal wheels with lugs are installed (purchased separately). Instead of a coulter, a potato hiller is installed (purchased separately).
When digging up potatoes:
Instead of soil tillers, metal wheels with lugs are installed (purchased separately). Instead of a coulter, a potato digger is installed (purchased separately).
While cutting the grass:
To mow grass for fodder and make hay, a special mower is attached to the front of the cultivator (purchased separately). Wheels are installed on the output shafts of the gearbox. The mower is connected to the engine by a V-belt drive. For this purpose, there is an additional pulley on the engine output shaft.
When pumping water:
To pump water from open reservoirs, you can install a pump connected to the engine by a V-belt drive on the Krota frame. In this case, the V-belt drive must be removed from the traction gearbox. The MNU-2 pumping unit is also, of course, purchased separately.
For cargo transportation:
When working with a small-sized trolley, the “Mole”, of course, crawls like a turtle. However, in certain situations it still helps: it’s still better than carrying sacks of potatoes on your shoulders.

So, the “Mole-2” modification received a gearbox with reverse gear and a more modern, powerful and productive four-stroke Chinese engine. Other design features of the next “Mole” model: the presence of a new improved carburetor, a centrifugal crankshaft speed controller and a new air filter.

Providing the Mole walk-behind tractor with a reverse gear improved its performance in shallow areas, as well as when operating the MK with additional attachments: a trolley, a mower, etc. And the new engine contributed to an increase in productivity, while simultaneously reducing operating fuel consumption, reducing noise levels, and increasing working life. Some manufacturing options are possible, slightly differing in the shape or design of the air cleaner, carburetor, fuel valve, gas tank and other parts.

In addition to official modifications, there are also homemade “variations on the “Mole” theme, made by the owners themselves. Some craftsmen even install electric motors of various designs on Krot motor cultivators. Electricity is supplied via cable. And the Chinese have long liked the design of the Mole motor-cultivator. For several years they simply produced an exact copy of it at their enterprises, and then they also set about improving it.

If you are looking for the best price-quality ratio, we recommend that you pay attention to the domestic Mole walk-behind tractor, which has been produced since 1983. The walk-behind tractor is still produced today in the Moscow and Omsk machine-building plants. IN recent years high-quality technical characteristics allow it to successfully compete with many foreign units. But there are also times when you don’t know why the Mole walk-behind tractor doesn’t start, or it doesn’t start well, or there’s no spark in it. Maybe the starter needs repair, or maybe the ignition is not working properly. In general, this issue and the reasons should be carefully examined.

The device of the Mole walk-behind tractor

Motoblocks, which were characterized by simplicity of design, began to be produced more than forty years ago. The first models were equipped with an insufficiently powerful engine and could only be used in a narrow range of jobs.

The first buyers of Mole were not very happy with the insufficient power of the power unit; as a result of numerous complaints, they began to improve the walk-behind tractor. Today, the Mole model is the most successful and versatile model of domestic cultivators among all those on the market.

Small in size, it can be used for various purposes: weeding, loosening, harrowing, leveling. The walk-behind tractor can be used even on a small plot of land, the area of ​​which does not exceed 10 acres.