Spare parts for Neva walk-behind tractors

What functions does the walk-behind tractor perform?

The first task set for the walk-behind tractor is to replace manual labor with mechanized labor. A person no longer needs to invest enormous effort in caring for his plot of land. The Neva MB-2 walk-behind tractor will do everything for him.

What functions can this unit perform? First of all, you need to know that a walk-behind tractor is a universal machine. It can perform a huge number of different functions. Thanks to it, you can prepare the soil for planting a new crop in a matter of hours (based on the area of ​​the land itself).

The Neva MB-2 walk-behind tractor can cultivate the land. Its tasks include loosening the soil, removing weeds and snow, digging furrows for sowing and root crops, transporting heavy loads and much more. One walk-behind tractor "Neva MB-2" can replace many other devices that are not so functional. Buying such a unit means saving money and personal time, which are useful for any person.

Description

Spare parts for the Neva MB-2 walk-behind tractor, as well as the unit itself, are produced at the Soviet-era plant CJSC Red October. This is one of the leaders in the domestic market in the production of various agricultural machinery and spare parts for it. The walk-behind tractor, in addition to the basic model, has several modifications that differ in technical characteristics. Most owners of this equipment speak positively about it as a reliable device that never fails.

Experience of owners of operating the Neva MB-2 walk-behind tractor - reviews from forums

Each farmer's experience is unique. The advice of those who use the same walk-behind tractor as you do on their plot of land is especially valuable. Next - some advice from owners of the Neva MB-2 walk-behind tractor regarding maintenance and troubleshooting.

Vitaly, Penza, Russia:

“I bought a Neva mb2 walk-behind tractor and was very pleased. The unit worked normally at first, but a week after the start of operation, white smoke began to emerge from the exhaust pipe. I tried to slow down the engine speed, but it didn't help. It turned out there was water in the float chamber. I drained the gasoline, let it settle, and drained the chamber. After that the walk-behind tractor worked perfectly. If anyone has had a similar problem, I advise you to use my experience!”

Alexey, Rostov-on-Don, Russia:

“I encountered the following problem: in first gear my walk-behind tractor cultivated normally, but when I switched to second gear and worked with the soil, the engine speed did not drop. When I went deeper into the ground, the cutters stopped. Knowledgeable people suggested that the problem might be in towing the belt. I adjusted the tensioner and shortened the chain on the clutch handle and the problem was solved! Now I work with pleasure, I’ve been using my Neva MB2 for two years now.”

Konstantin, Rivne, Ukraine:

“I’m not new to working with a walk-behind tractor; I’ve been using it for 4 years. Recently, if you put a load on it, the engine began to stall, as if it couldn’t pull... I barely drove it into the garage, and there was no popping noise, no smoke. The cause of the malfunction was simple: the air filter was clogged. I had to replace it and now the car runs like a beast.”

You can also help other readers of our site with your reviews on this walk-behind tractor model and its maintenance and main faults.

If you are the owner of this walk-behind tractor model, you can leave a review about its maintenance and operation, or ask any question you are interested in regarding the breakdown or maintenance of this model below in the comments.

Auto mechanic, specializes in agricultural equipment

For optimal operation of the equipment, adjustment of the valves on the walk-behind tractor is required. This procedure is mandatory and is carried out according to a special template. Different models have some features that need to be taken into account. If the valves of a walk-behind tractor are adjusted, the gasoline engine must be fully prepared for further operation.

Motoblock "MB-2 Neva": instructions for the model range

This type of equipment has many modifications. What is the MB-2 Neva walk-behind tractor? The instructions for the model range include a description of the most popular modifications of this unit. Each model differs from the previous one in power and other parameters. Thanks to this variety, you can choose a walk-behind tractor that will suit all the necessary parameters that meet the owner’s requirements and the needs of the land plot.

"Neva MB-2B 6.0"

This device is equipped with a foreign-made Briggs Stratton engine, which deserves respect for its performance qualities. A motor with a power of six horsepower is perfect for ordinary work on the site. The working volume of this unit is two hundred and five cubic centimeters, which is not such a good result compared to other, more powerful modifications of the Neva MB-2. The fuel tank, which has a volume of about four liters, can be filled with ninety-second or ninety-five gasoline. The fact that it has eight cutters makes it possible to cultivate a strip of land up to one hundred and thirty centimeters in width. Because of this, his productivity is very high. Such a machine weighs about one hundred kilograms.

Repair of the Neva walk-behind tractor: how to do everything right without the help of specialists

If you have access to a huge selection of necessary spare parts, then, of course, it is easier to make gearboxes yourself. But please note that such a spare part requires serious metal processing equipment. If you have this, then you can choose a housing with optimal parameters, make holes for the shafts on the bearings and make the device no worse than at the factory.

Initially, you need to calculate the rated power without errors. Thanks to the correct results, you will be able to find out the optimal angle to find for a bevel gear. You need to calculate the number of rotations in 60 seconds.

The completed gearbox requires determination of its operating conditions, including the load. Its functioning will be at the highest level if the temperature and lubricant are chosen correctly. The next step is to assemble the gearbox. The case can be taken from the factory. According to its diameter, you can determine the bearing housing for the shaft. A caliper and a drill will help you with this.

A steel flange must be mounted on the front side of the gearbox. Inside we mount a flange bearing and a washer. The flange is secured with screws at the generator itself. The key and gear must be selected in advance. All components that are in contact with the transmission system are fixed to the rotary generator.

Operating manual Neva MB-1

First, it should be noted that among the many models of this manufacturer, it is MB1 and MB2 that are considered the most famous and widespread. Using their example, we will deal with common malfunctions.

• If the owner of a walk-behind tractor notices an oil leak on the output shaft, he immediately needs to remove the axle shaft covers and replace the cuff;
• If the gearbox is jammed, the mechanism should be disassembled and the unsuitable chain should be replaced;
• If there is no kinematic connection in the gearbox, you must not hesitate and update the sprocket in the block;
• Problems with gears can occur as a result of the destruction of the shift holder or due to the cut threaded part of the shift knob. To get rid of problems, it is worth replacing damaged parts;
• When the overrunning clutch starts to act up, it becomes obvious. You should remove the starter, take out the clutch and grind off the grooves for the balls. By pouring a little high-quality oil inside, you can minimize the friction of the coupling and shaft.

The focus was on the most common problems. Thanks to the instruction manual, you can easily understand the features and carry out repairs yourself.

• If the owner of the unit is faced with the impossibility of separating the axle shafts, he needs to check the drive adjustment and change the cable tension;
• Self-switching of gears is often the result of a malfunction such as a violation of the shift control system. Then you should reduce the tension of the screws holding the board, engage 1st gear and again tighten the screws as much as possible;
• If there is no kinematic connection in the gearbox, it is necessary to update the shift fork.

Operating manual MB 2 (2013 version for new models)

Operating manual Neva MB-2 (1992 version for older models)

Solutions to other problems and more detailed information about using the walk-behind tractor can be found in specialized operating manuals designed for new and old devices.

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"Neva MB 2B 6.5"

This model is similar in almost all respects to the Neva MB-2B 6.0 walk-behind tractor. The last index “6.0” shows the engine power. The Neva MB-2B 6.5 unit has an engine power of six and a half horsepower. The motor of this equipment is more powerful than that of the previous modification, which makes it more efficient.

There is also a walk-behind tractor "Neva MB-2K-7.5" from the same series, only with a seven and a half horsepower engine. It has a working volume of ten cubic centimeters more than previous similar models.

"Neva MB-2K-7.5"

The engine on this unit is already from the domestic “ZAO”, the power of which reaches seven point five horsepower. The engine displacement of this beauty is three hundred and seventeen cubic centimeters. This walk-behind tractor is a powerful unit for plowing fields that will never let its owner down. The only drawback that the Neva MB-2K-7.5 has is its small three-liter fuel tank. You have to constantly add fuel, because under heavy loads (ploughing) it quickly runs out.

Motoblock "Neva MB 2": operating instructions

Do not forget that it is still better to take care of your unit and not bring it to a faulty state. Operating the Neva MB-2 walk-behind tractor is a delicate matter. You need to feel when to stop and when you can continue working. In order not to overheat and overwork the engine, it is best to give your car a rest every couple of hours. You should always monitor the oil level. The quality of the oil itself is also important - if it is bad, then the parts will wear out quickly, and then you will need spare parts for the Neva MB-2 walk-behind tractor. Fortunately, spare parts for it are not that expensive.

Clutch, levers, cables

Clutch cable for Neva walk-behind tractor

The Neva walk-behind tractor is equipped with several simple elements: levers and cables. The number of engine revolutions depends on the operation of the gearbox lever and all connecting cables. Such a device tends to wear out and fail during operation. Therefore, they should be periodically checked for integrity and replaced if necessary.

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Also, don’t forget about the clutch. It fails much less often, but the plug should also be inspected periodically. If necessary, all these parts are freely available in the store.

Some people think about not buying a new cable, but making one from improvised materials. But it’s better not to experiment with this part and buy a new one. Because it cannot be replaced equivalently. The only temporary replacement option is to take it from a car clutch or scooter.

Categories

Like other machines, walk-behind tractors have their own categories. They differ in weight and power: light, medium and heavy.

Light walk-behind tractors are small models that are made for cultivating a summer cottage. Their power is not enough to plow a large plot of land. They are relatively inexpensive. Due to its low weight, maneuverability and low power, this technique was classified as light.

Medium walk-behind tractors are more clumsy. They are already more powerful than the lungs, but also rather weak. You can't dig up a field with them, but you can use them to dig up a large vegetable garden. This category of walk-behind tractors is more suitable for summer residents with a large plot of land who cannot manually manage their garden. Such a unit will dig up the ground, bring water and tools to the site, and dig up potatoes. Medium walk-behind tractors are good helpers for summer residents.

A heavy walk-behind tractor is a machine for agriculture. By its nature, it resembles a tractor, only small in size. "Neva MB-2" just belongs to heavy walk-behind tractors. The possibilities with this unit are endless.

Features, pros and cons

The Neva MB 2 walk-behind tractor is one of the most popular units of this type. It is versatile and has excellent technical characteristics. Ideal for working in private farms, vegetable gardens, and orchards.

There are engines with markings:

The letter “2K” means that the walk-behind tractor has an engine made in Russia , it has a good service life and an average price. The single-cylinder engine has a power of 6.1 and 7.6 liters. With.

Much depends on what kind of unit it is: DS 1 or DS 2. The first can run on 76-grade gasoline, DS 2 requires 95-grade fuel. On average, gasoline consumption is about three liters per hour if the walk-behind tractor is almost 100% loaded.

The walk-behind tractor with the letter “2B” has an imported power plant (most often Briggs & Stratton). Such mechanisms are considered to be the most reliable. Model “2C” on such models there is a Japanese “Subaru” engine with a power of up to 7.1 liters. With. Diesel options have more power.

Japanese technology requires proper configuration, only then will it work without failures. Before buying a Neva walk-behind tractor, you should understand what kind of work it will do.

If the plot at the dacha is too large, more than 16 acres, then the engine should be chosen at least 9-10 liters. With.

“Neva MB-2” is fixed on the frame, and various equipment can be assembled there. The power plant is equipped with a gearbox with six gears, this is a significant help in processing even the most dense soils.

The machine can move at speeds of up to 10 km per hour, and even large heavy loads can be transported. The walk-behind tractor has four speeds, 2 of them are rear. The controls are very convenient, mounted on the steering wheel.

The V-belt drive can quickly rearrange the pulley, lever and belt. The unit is well equipped; there are cutters for a wide variety of purposes.

The device weighs only 99 kg and is compact in size. It can be transported over long distances in the trunk of a car.

The machine can do the following work:

• plow;
• sow;
• to harvest;
• serve in public utilities;
• work like a pump.

Main parameters:

• depth of penetration into the soil up to 21 cm;
• the grip can be realized up to 130 cm;
• The set includes 6 cutters;
• turning radius 112 cm;
• cutter diameter 37 cm;
• traction force 172 N;
• dimensions LxWxH, meter – 1.75 by 0.66 by 1.4;
• operation is permissible at temperatures from – 26 to +39 degrees Celsius.

In the cold season, it is necessary to drain the “summer” oil and fill in the “winter” oil. It is unacceptable to use the wrong oil, this will lead to damage to the unit, the same statement applies to fuel. American power plants are extremely picky about the purity of gasoline. It is better to filter domestic fuel before pouring it into the tank of a walk-behind tractor.

The unit service package includes:

• running in the engine and tuning it;
• adjustment of gearbox and transmission;
• adjustment of attachments;
• preventative maintenance and testing;
• timely oil change.

The main problems of operating the Neva MB walk-behind tractor

The fate of the walk-behind tractor has so happened that each of the components requires regular attention and periodic maintenance, regardless of which engine is installed on the unit. But even Subaru and Briggs engines require periodic washing and adjustment of carburetors during operation, cleaning the needle valve seat from accumulated dirt, and cleaning the spark plug.

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Gearbox and V-belt drive

The next most important unit of the walk-behind tractor is the gear-belt reducer. The mechanism consists of two parts - a gear reducer and a V-belt drive. The walk-behind tractor gearbox is assembled in a light alloy housing and filled with oil. According to the instructions, the oil is changed after the first 200 hours of operation. There are no problems with oil, TAD17i is suitable, there are problems with deformation and splitting of the gearbox housing, rapid operation of sealing seals and leakage. The gearbox provides two forward and one reverse gears. Two more gears are obtained by reversing the V-belt drive belt.

Experts recommend changing the oil not according to the instructions, but after the first 40 hours of operation, with mandatory flushing of the crankcase and replacement of rubber seals with imported ones.

According to the instructions, the belt of the Neva-2 walk-behind tractor should be of standard A1180 - A45. This is the most consumed and worn part of the transmission, since instead of the traditional disc clutch, which even the Chinese often install on their Zubrs, the Neva uses a V-belt clutch, which is already more than a hundred years old. It is clear that the service life of such a mechanism is ten times less than the ferrido system.

According to the instructions, the clutch works as follows:

• When you press the lever-handle, the force is transmitted through a flexible cable to the tension roller, which tensions the belt and picks up the slack, ensuring traction of the narrow side belt drive with the cheeks of the pulleys;
• When the lever is released, the return coil spring increases the slack and loosens the belt's grip on the pulleys.

But unfortunately, regularly stretching the coil spring to its maximum leads to its weakening, and, as a result, burning of the belt at maximum speed. Therefore, during operation, you have to regularly stop the walk-behind tractor to adjust the belt tension according to the instructions. According to the instructions, the deflection of the belt in the center when pressed with a force of 5 kg should not exceed 9-10 mm.

Motor DM-2

To operate the walk-behind tractor, according to the instructions, use pure unleaded gasoline of the A-92 brand. If you use a clean canister for intermediate storage, and be sure to settle the fuel before starting operation, and do not fill the last 100-150 ml into the tank, but carefully drain it for other purposes, then there should be no problems with the operation of the engine.

The most painful part of a walk-behind tractor engine is its carburetor. Not only is it almost impossible to adjust the operation according to the instructions, but even at the factory settings the needle does not lock and regularly pours fuel into the intake tract. Accordingly, after 20-30 hours the engine oil in the crankcase turns into a stinking slurry.

According to the instructions, M10GI mineral oils are used to fill the engine crankcase; in practice, semi-synthetics and synthetics are used, for example, 10W40 approximately 1.3 liters. For the gearbox, the instructions require filling 2.2 liters.

To start the engine according to the instructions, you need:

• Open the tap, pump fuel into the carburetor and move the pump foot to the starting position;
• Hole a couple of times with the damper open;
• Close the throttle completely and start the engine.

Of course, when the walk-behind tractor engine is hot, it is started with the throttle open.

Plow adjustment

In order to obtain the required plowing depth and blade direction, you need to know how to set up a plow on a walk-behind tractor. According to the instructions, the plow is attached to the hitch using an adjustable bracket and kingpin. Installation and adjustment of the plow is carried out in two stages.

At the first stage of operation, the installation height of the plow is adjusted; for the Neva, the vertical bar must be installed higher and lower in the row of finished holes. The optimal height is 7-9 cm.

After trial operation of the plow, you will need to set the angle of attack of the cutting edge. To do this, according to the instructions, the walk-behind tractor, shod with lugs, is installed on a flat surface. A 15 cm high stand is placed under the left wheel, and by turning the fastening head the inclination of the cutting edge to the coating surface is adjusted.

Device

The power plant has an overhead valve arrangement, the crankshaft is located in a horizontal position, which allows it to create significant torque. Motoblocks "Neva" for the most part are equipped with this particular unit produced in St. Petersburg. The second most popular is the unit from Subaru (Robin-Subari EX21), which also has a power of 6.6 liters. With. Motoblocks "Neva" are mounted with Briggs Stratton engines (power 5.6 hp).

Domestic walk-behind tractors with a DM-1K engine can have modifications of 6.2 and 7.5. The first is oriented on 76 grade unleaded gasoline, the second is designed for 92 grade gasoline.

Over 35 years, many different modifications of Neva walk-behind tractors have been produced, however, the main spare parts of the unit are standard, which makes maintenance easier; spare parts can always be found on the market. The bearings are reliable and ensure smooth operation of the gear. The decompressor operates automatically and is an integral part of the unit. The air filter has two assembled blocks.

The engine consumes a small amount of fuel, creating a small amount of noise. The spark plugs ensure uninterrupted ignition operation; the engine can be started even in conditions of high humidity at any temperature.

"Neva MB 2" has dimensions:

• length 1742 mm;
• width 652 mm;
• height 1310 mm.

The track width is 322 mm; if you take into account the axle extensions, the size can reach 570 mm. The ground clearance of the walk-behind tractor is 142 mm. The cutters have a diameter of 36.2 cm; tillage in depth can reach 22 cm.

Models

"NEVA MB2 MultiAGRO"

This is a new model that can rightfully be called one of the most successful. The unit stands out from the line with rich functionality, as well as a good Briggs&Stratton engine, which belongs to a separate Vanguard series. Supplemented with an excellent gearbox with original characteristics.

The engine resource is designed for five thousand hours, which is a record among power plants of this class . The walk-behind tractor has two forward gears and one reverse gear. The traction force is about 142 N, which allows you to work on virgin soil and transport heavy loads.

The walk-behind tractor has a single-cylinder four-stroke engine. It features economical fuel and oil consumption. Any attachment is suitable for this walk-behind tractor.

Set:

• walk-behind tractor "Neva MB-2B-6.5" 1 pc.;
• cutters 4 pcs.;
• wheels (4.6x10) 2 pcs.;
• axle attachments 2 pcs.

"NEVA MB2 B"

6.5 l. With. Suitable for a wide variety of jobs. Such a unit is indispensable in auxiliary communal services. This walk-behind tractor is equipped with a four-stroke Vanguard engine, which has a number of original improvements:

• more modern carburetor layout;
• the gearbox has several additional stages;
• there are big wheels.

The processing strip is 82 cm; if additional cutters are installed, the strip increases to 126 cm.

"Neva MB-2N GX200"

Makes it possible to cultivate the soil and clean streets and squares. The power of the unit is enough to cultivate virgin lands.

The gasoline engine is from, has a cast iron body, power is 4.2 kW. The machine has increased traction parameters.

"Neva MB2 GX-200"

It cannot rightfully be called a heavy unit. Maneuverability, maneuverability and power are noticeably above average.

The unit is distinguished by its unpretentiousness and high productivity. Maneuverability is achieved by locking the wheel. You can install eight cutters, the track width can be up to 172 cm. It can be combined with any attachments.

Characteristics:

• the weight of the device is just over one hundred kilograms;
• the fuel tank holds up to 3.2 liters of gasoline (92 or 95);
• there are two gears;
• the soil can be cultivated at a depth of 21 cm;
• shaft revolutions in first gear are 22-43;
• shaft revolution in second gear 88-161;
• The gearbox is enclosed in an aluminum housing.

"Neva MB 2S-7.5PRO"

Another popular walk-behind tractor model. The machine is distinguished by its ability to work in any weather and temperature. The gearbox has a chain and gears, which contain a double-groove pulley. The device is very maneuverable, its wheels work autonomously. There is a function to turn off one of the wheels. The ground can be processed with eight cutters, the working width is 171 cm.

The equipment is capable of performing almost any job, characteristics and types of work:

• cleaning the area;
• transportation;
• harvesting root crops;
• mowing;
• with Subaru engine;
• the amount of fuel in the container is 3.5 liters;

• total weight 101 kg;
• aluminum body;
• width of cultivated soil 171 cm;
• processing depth 21 cm;
• shaft revolutions 22-43 (1st gear) 88-161 (2nd gear).

"Neva MB 2S-6.5PRO"

This is a classic unit that has proven itself from the best side. "MB 2C-6.5PRO" is versatile and can work with any soil. Power is 4.7 kW (6.4 hp). It is possible to install up to eight cutters; the width of the cultivated soil strip can reach 172 cm. It is distinguished by high maneuverability even during high loads.

You can change the speed by moving the pulley. It is possible to block the left wheel, which makes the unit more maneuverable when turning.

Main characteristics:

• suitable for transportation;
• cultivation of all types of soil;
• public works;
• horsepower 6.1 (4.5);
• the tank holds 3.5 liters of gasoline;
• the device weighs about a hundredweight;
• two forward gears and one reverse gear;
• gasoline 92 and 95.

"Neva MB 2B-6.5 RS"

This walk-behind tractor is equipped with a gasoline engine from the Briggs&Stratton I/C series. This is one of the best units that can successfully cope with the most complex tasks, performing almost any type of agricultural work, the soil may be different. Designed for processing medium and large sized areas. Additionally, the walk-behind tractor has an electric starter and headlights. It features increased performance, the engine is 6.21 liters. With. (4.5 kW).

The unit has good functionality, reliability, and the mechanism can withstand heavy loads.

Main advantages:

• you can work in different gears, the pulley is simply redirected to the second cell;
• there are unlockers, they are provided with maneuverability by the mechanism;
• there is a light source, which allows you to work in the dark;
• fuel capacity 3.9 liters;
• weight 98.5 kg;
• two gears - forward, one reverse;
• engine capacity 204 cc. cm;
• fuel – gasoline 92 and 95;
• width of the cultivated strip is 85-128 cm;
• shaft speed 22-43 and 88-162;
• immersion in the ground up to 21 cm.

Gearbox, faults, device

Below is an algorithm for setting up a carburetor on a Neva walk-behind tractor with a Subaru engine.

Carburetor adjustment diagram

The diagram shows three screws that are responsible for the amount of fuel supplied.

1. Screw 1 - number of full throttle revolutions;
2. Screw 2 - number of idle speeds;
3. Screw 3 - responsible for idling.

To adjust the carburetor, you must perform the following manipulations:

• Tighten screws 1 and 2 until they stop;
• Then unscrew them about 1 turn;
• Turn on the ignition and warm up the engine;
• Then place the throttle control lever until the engine is turned off (that is, until the speed is at a minimum level);
• Set the minimum idle speed level with the third screw;
• Then set the maximum idle speed with the second screw;
• If necessary, adjust the minimum speed again by adjusting the position of the third screw;
• Carry out the last two steps until stable engine operation is obtained;
• If there are interruptions, tighten the first screw again until it stops and unscrew it one and a half turns.

The gearbox is designed to transmit rotation that comes from the engine to the wheels and attachments. It regulates the speed and direction of movement.

Gearbox of the Neva walk-behind tractor

The gearbox is designed in such a way that to regulate its operation there is no need to disassemble the entire mechanism. All regulators are located on the outside.

The gearbox has 5 positions. When you press the lever, the clutch is disengaged; when it is released, it returns to its place.

If the drive is connected to the right axle shaft, then at this moment of switching the walk-behind tractor stops. When the handle is recessed, the left sprocket catches and the gear shifts down. If it is necessary to increase the gear, the handle moves forward.

• The clamps or springs have failed. In this case, they should be replaced with new ones;
• The settings of the gearbox itself have gone wrong. Loosen the screws, set the first gear, and tighten it back;
• Oil appears on the shaft. The main reason for this behavior is the failure of the cuff. It needs to be replaced with a new one. It is also recommended to replace the seals. To do this, just pry off the old ones, pull them out and install new ones;
• The transmission is jammed. There's a problem with the chain. It should be inspected and, if its integrity is damaged, replaced with new ones;
• The transfer is not recorded. Most likely the fork is worn out. It cannot be repaired, only replaced with a new one.
• Grinding noise in the gearbox. Most often it occurs with increased loads on the walk-behind tractor. This indicates that the gearbox axle shaft has failed, or the drive belt tension needs to be changed.

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Brief video review of the Neva walk-behind tractor gearbox: design, disassembly, repair

Instructions for assembly, operation and repair of the NEVA MB-2 walk-behind tractor

The walk-behind tractor, under the “Neva” logo known to rural workers, belongs to the category of small-sized agricultural equipment produced in St. Petersburg. In fact, this brand of mini tractor is not new to gardeners and amateur gardeners. "Neva" was put into serial production back in the mid-80s. The walk-behind tractor of this brand has become a “pioneer” in the domestic market of small equipment for rural areas. Throughout this time, to this day, this model has only been modernized and improved.

Tow hitch for a walk-behind tractor with a plow

Motoblock device

Today it will be no secret to anyone that the MB 2 unit is the most popular equipment among lovers of rural work and is in great demand . The walk-behind tractor of this line is available in several modifications, differing from each other by engine brand. These include:

• a model with the 2K index, equipped with a motor from a domestic manufacturer with a long service life and a fairly low price;
• “Neva” with the designation 2B - mini-tractor is equipped with an imported engine, mainly from Briggs & and Stratton;
• modification 2C, equipped with professional elements for processing land balls from the manufacturer EX Robin Subaru.

Download operating instructions for Neva walk-behind tractors

Operating instructions for the Neva walk-behind tractor MB 2B-6.5RS + Briggs&Stratton RS950 (RS 6.5) engine download.

Motoblock "Neva MB-1", MB-1D, MB-1R - operating instructions, 1992. Novgorod

Motoblock "Neva MB-2" operating manual, 1992. JSC Krasny Oktyabr St. Petersburg

Motoblock Neva MB-23 operating manual 2013 JSC Krasny Oktyabr St. Petersburg

Engine for walk-behind tractor Neva Robin Subaru EX13 EX17 EX21 EX27 - operation and maintenance manual.

Video instructions for assembling and launching the NEVA walk-behind tractor

The walk-behind tractor, under the “Neva” logo known to rural workers, belongs to the category of small-sized agricultural equipment produced in St. Petersburg. In fact, this brand of mini tractor is not new to gardeners and amateur gardeners. "Neva" was put into serial production back in the mid-80s. The walk-behind tractor of this brand has become a “pioneer” in the domestic market of small equipment for rural areas. Throughout this time, to this day, this model has only been modernized and improved.

Tow hitch for a walk-behind tractor with a plow

Motoblock device

Today it will be no secret to anyone that the MB 2 unit is the most popular equipment among lovers of rural work and is in great demand . The walk-behind tractor of this line is available in several modifications, differing from each other by engine brand. These include:

• a model with the 2K index, equipped with a motor from a domestic manufacturer with a long service life and a fairly low price;
• “Neva” with the designation 2B - mini-tractor is equipped with an imported engine, mainly from Briggs & and Stratton;
• modification 2C, equipped with professional elements for processing land balls from the manufacturer EX Robin Subaru.

The motor is selected based on the volume of work or the size of the land plot that will be processed by the walk-behind tractor. Typically, this unit is adapted to work on 10 - 15 acres of land without much effort. For operation over large areas it is necessary to buy MB 2 with a 9 horsepower engine. The design of the Neva brand mini-tractor consists of the following main components:

• Gear chain type gearbox. This element is located in a special case made of aluminum alloy. The main purpose of the gearbox is to provide high-speed operation. The unit has 4 forward gears and 2 reverse gears. The maximum speed is 12 km/h, which makes it an excellent cargo carrier during operation.
• A motor with a starter to put the mini-tractor into operation.
• Load-bearing frame structure. It has a special device at the front and back for fastening and installing attachments to perform the work.
• Steering device. There are special levers on it to control the tractor during operation.
• V-belt type transmission. The device performs the function of transmission of the clutch assembly and consists of a pulley, a special lever and a V-belt.

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It is worth noting that the heaviest modification of the walk-behind tractor weighs 98 kilograms. This indicates the compactness of the unit, thanks to which it can be delivered to its destination in the trunk of a passenger car.

Characteristics of MB 2 and MB 2K

"Neva" modification MB 2 with index K is used for processing different types of soil. It is perfect if you need to carry out work on so-called heavy soils in the form of virgin soil. The most amazing thing is that this unit can be used in winter. To operate during this period of the year, it is necessary to use SAE 10W20 series oil.

MB 2 with the prefix K can perform a wide range of agricultural work, such as plowing the soil, cultivating, planting seeds of potatoes and other crops, hilling, weeding rows and harvesting. “Neva” can perform these manipulations using a wide selection of attachments, as well as resources provided by the manufacturer. The technical capabilities of the MB 2 model with the letter K look like this:

1. The unit is refilled with gasoline.
2. Equipped with a domestic engine DM - 1K. The engine is 4-stroke and has one cylinder.
3. The power of the device is 7.5 horsepower.
4. The engine volume is 317 m3.
5. The engine starting device is manual type.
6. Cooled by air and liquid.
7. The gasoline capacity is 2.9 liters.
8. A gear chain reducer is installed.
9. Fuel consumption at maximum operating mode is 2.8 liters per hour.
10. The grip when cultivating is 160 cm.
11. The depth of the cultivated soil is 15 – 25 cm.
12. The dimensions of the tractor are in the following ratio: length – 1740 mm; height – 1300 mm; width – 650 mm.

The characteristics related to the MB 2 modification can be formulated as follows:

1. The maximum coverage of the working area is 120 cm.
2. The depth of soil cultivation is 20 cm.
3. Cultivation speed – 12 acres in 1 hour.
4. The fuel capacity is 3.6 liters.
5. Fuel consumption at maximum operating mode is approximately 1.6 liters per hour.
6. 4-stroke single-cylinder engine with a manual starter.
7. Cooling of the components is carried out using an air system.
8. The equipment operates from rotation transmitted from a gearbox through a three-groove pulley.

Assembly instructions

Trailer for the unit

Based on practice, “Neva” goes on sale assembled. But having bought this machine for his household plot, the owner is faced with the issue of adjusting the main components. This allows you to prepare the unit for full operation, making maximum use of the characteristics.

The most important thing in this process is adjusting the engine and fuel system. As the instructions indicate, the level of gasoline entering the float chamber of the walk-behind tractor carburetor must be adjusted using a special reed device. It can be squeezed or pressed. This process allows you to correctly configure the operation of the carburetor, on which 90% of the correct operation of the entire engine depends.

In order for the engine to operate with minimal interruptions, it is necessary to adjust the valve system. To do this, as the instructions suggest, you need to disassemble the carburetor and unscrew all screw connections of the upper and lower housings and clean all carburetor elements. After this, you can begin adjusting the valves of the walk-behind tractor. First you need to screw in the gas adjustment screws all the way to the maximum limit. Then you need to unscrew them one and a half turns and start the engine.

Before adjusting the valve system, the engine must be warmed up for 5 minutes. After which the gas lever must be set to the lowest position, it maintains a stable speed. Next, you need to set the motor to a stable minimum speed, when the engine runs without interruption, that is, steadily.

Instructions for use

In fact, Neva works ideally if the following actions are constantly followed:

• When installing the cultivating device, the knives should be directed in the direction of travel.
• When the wheels slip during operation, additional weights need to be installed.
• It is necessary to monitor the quality and purity of the fuel.
• When a cold device is put into operation, it is necessary to close the air supply using a special valve. When the engine is hot, there is no need to close this element.
• After starting, you need to set the throttle to position XX and warm up the engine for 3 minutes. When the engine is warming up, setting maximum speed is strictly prohibited.
• It is necessary to ensure that oil does not get on the air filter element.

All necessary information for the device is fully contained in the operating instructions, which must be read in detail. This will avoid many malfunctions.

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Repair instructions

“Neva”, like any other mechanism, can be subject to various technical malfunctions. When they occur, some components must be repaired, while others simply need to be replaced. In both situations, you need to have certain skills that will help fix the breakdown. This rule especially applies to the gearbox, which is the main mechanism in the machine in question.

Malfunctions of the gear unit include:

• Oil leakage along the shaft. It is necessary to remove the gearbox cover and replace the lip liner.
• When the gearbox brakes, it is necessary to replace the broken chain.

In fact, the brand of mini tractor in question does not require great operating requirements. Thanks to its simple design, the machine is in demand in our country and beyond. A wide network of service centers helps owners quickly restore the functionality of units at affordable prices.

Among the large number of universal domestic, Chinese, Japanese motor-units for cultivating land, the Neva 2MB walk-behind tractor stands out for its relatively low price, operational reliability and traditionally difficult maintenance of the device. Previous Neva-1 models often became the target of criticism due to the low quality of the walk-behind tractor engine. Today the situation has changed dramatically. The engine for the Neva-2MB walk-behind tractor is made more or less reliable, or an imported one is installed, but there is still no information on maintenance and clear operating instructions.