Motoblock "Neva" MB 23S-9.0PRO belongs to the class of power walk-behind tractors. Designed for long-term intensive work in large areas with any type of soil.
Key Features
all-season engine;
gear-chain transmission;
maneuverability;
installation of 4 to 8 cutters
Motoblock "Neva" MB 23S-9.0PRO is produced with a professional resource Subaru engine with a capacity of 9.0 hp, capable of operating effectively at any time of the year (in winter up to -30 °).
Motoblock "Neva" MB 23S-9.0PRO is equipped with a gear-chain reducer. Changing the range of gears is carried out by transferring the belt on a double-groove pulley.
The maneuverability of the "Neva" MB 23S-9.0PRO walk-behind tractor is provided by the wheel decoupling function. By disabling the left wheel, you can turn the walk-behind tractor with a minimum amplitude and without much physical effort.
On the motor-block "Neva" MB 23S-9.0PRO, from 4 to 8 cutters are installed. The maximum number of cutters increases the stability of the walk-behind tractor due to the larger support area.
Motoblock "Neva" MB 23S-9.0PRO solves many economic problems. On a walk-behind tractor, you can prepare land for planting, harvest crops, clean up a plot, bring a load.
Motoblock "Neva" MB23B-10.0 is an agricultural unit designed for work on any soil, especially not treated. Belongs to heavy duty devices.
Distinctive features of this model are:
- high power reducer
- the ability to disengage the wheels, making it easier to control;
- 10.0 hp engine
- high work productivity.
Description
The design of the walk-behind tractor and the power of the engine make it a technique that can be successfully used for processing dense, heavy types of soils, as well as virgin lands - previously uncultivated soil.
Type of gearbox of the "Neva" motoblock MB23B-10.0: gear-chain, body material - aluminum. Thanks to the gear range of the gearbox, you can select the speed mode that is convenient for a particular type of agricultural work. Gear shifting on this model is carried out by shifting the belt on a two-slot pulley.
The maneuverability of the Neva MB 23B-10.0 walk-behind tractor is very high. Such mobility is due to the separation of the wheels - when the left wheel is turned off, the walk-behind tractor can be turned around. The unit has a high performance, which is provided by the presence of eight cutters. The working width of the ground can be up to 170 cm.
Professional purpose of the "Neva" MB23B-10.0 walk-behind tractor: long-term high-intensity work on tillage, cleaning of land at any time of the year. When connecting a trolley or trailer, the walk-behind tractor can be used as a vehicle and unit for transporting goods.
Available modification of the model: MB23B-10.0FS - a walk-behind tractor with an electric starter and a headlight.
Specifications
| Engine brand | Briggs & Stratton (USA) |
| Engine | I / C 10.0 |
| Power, h.p. (kw) | 10.0 (7.4) |
| Weight, kg | 105 |
| Number of gears | (2 + 1) x2 |
| Fuel type | |
| Transmission | |
| Cultivation width, cm | 86-170 |
| Shaft speed | 23-42 (1st gear) 89-160 (2nd gear) |
| Processing depth, cm | 20 |
Motoblocks Neva MB23 S-9.0 PRO
Motoblock "Neva" MB 23S-9.0PRO is a device designed for high-intensity agricultural work on soils of any type.
The main advantages of this model are as follows:
- high maneuverability;
- the ability to install 8 cutters (the minimum number of cutters is 4);
- gear-chain power transmission;
- 9 hp engine that works efficiently even at low temperatures (down to -30 °).
Description
Gearbox type of the "Neva" MB 23S-9.0 PRO walk-behind tractor: gear-chain. Gear shifting is carried out by shifting the belt on a two-slot pulley. Thanks to the wheel disengagement function, the walk-behind tractor has high maneuverability. For example, turning a walk-behind tractor with a minimum amplitude can be achieved by disabling the left wheel. Management is easy and does not require much physical effort.
On the "Neva" motoblock MB 23S-9.0PRO there is a possibility of installing 8 cutters. The minimum number of cutters to be installed is 4. The higher the number of cutters, respectively, and the support area, the more stability the walk-behind tractor acquires during operation.
The main types of agricultural work that the "Neva" MB 23S-9.0 PRO allows: preparing the soil for planting crops, harvesting, transportation of goods, cleaning the territory.
Available model modifications:
- MB23S-9.0 PRO-F - walk-behind tractor equipped with a headlight;
- MB23S-9.0 PRO-F is a walk-behind tractor equipped with an electric starter and a headlight.
Specifications
| Engine brand | Subaru (Japan) |
| Engine | EX27 |
| Power, h.p. (kw) | 9.0 (6.6) |
| Weight, kg | 105 |
| Number of gears | (2 + 1) x2 |
| Fuel type | Pure gasoline AI - 92, AI - 95 |
| Transmission | Oil-filled, chain-gear reducer in aluminum housing |
| Cultivation width, cm | 86-170 |
| Shaft speed | 23-42 (1st gear) 89-160 (2nd gear) |
| Processing depth, cm | 20 |
Motoblocks Neva MB23-N9,0 PRO
Motoblock "Neva" MB23-H9,0 PRO - agricultural machinery belonging to the class of heavy, powerful units designed for processing soils with a high clay content, as well as for processing virgin lands.
The main advantages of this motoblock model are as follows:
- briggs & Stratton gasoline engine with a capacity of 9.0 hp;
- high torque of the gearbox;
- quick and easy procedure for turning the car;
- maximum ground track during processing.
Description
The engine of the "Neva" MB23-H9,0 PRO walk-behind tractor has a high performance. It is characterized by fast start-up and reduced oil consumption. These technical parameters allow the walk-behind tractor not to change the intensity of work for a long time, providing an even result when processing even the most difficult soil.
Type of transmission of the "Neva" MB23-H9,0 PRO walk-behind tractor: gear-chain, the gearbox is protected by a case made of aluminum. The double-ribbed pulley allows you to double the range of gears, while the walk-behind tractor initially provides 2 forward and 1 reverse gears. For different types of soil on the walk-behind tractor, you can select the required speed.
The function of disengaging the wheels (turning off the left wheel) allows you to turn the walk-behind tractor right on the treated surface. The maximum working width for the "Neva" MB23-H9.0 PRO is 170 cm. This working width is achieved by installing 8 cutters.
The key purpose of the "Neva" MB23-H9,0 PRO walk-behind tractor: cultivation of soil of any type and level of processing (including virgin lands). With the help of attachments, the unit can perform the function of a mower, a hay collector, it is also possible to perform harvesting work, work on the transportation of goods and watering the territory.
Specifications
| Engine brand | Honda (Japan) |
| Engine | GX270 |
| Power, h.p. (kw) | 9.0 (6.6) |
| Weight, kg | 105 |
| Number of gears | (2 + 1) x2 |
| Working volume, cm3 | 243 |
| Fuel type | Pure gasoline AI - 92, AI - 95 |
| Transmission | Oil-filled, chain-gear reducer in aluminum housing |
| Cultivation width, cm | 86-170 |
| Shaft speed | 23-42 (1st gear) 89-160 (2nd gear) |
| Processing depth, cm | 20 |
Attachments
Trailed units for motor-blocks "NEVA"
Trailed bogie (VRMZ) Trailed bogie TPM Trailed bogie TPM-M Trailed uniaxial bogie to the APM adapter
Two-axle trolley trailed to the APM adapter Snow blower SMB "NEVA" Rotary brush SCHRM-1 Hinged motoblock knife NNM
Motor-block water pump НМЦ Rotary mower KR-0,5 "NEVA" Wheels KUM 680 for hilling Single-row mounted potato planter
Potato digger Weight-weighting "Neva" Weight-weighting equipment Harrow BD 850
Adapter APM
Attachments for NEVA walk-behind tractors
Universal wheels KUM 540 for hilling Universal wheels KUM 540 with a long sleeve General view of the walk-behind tractor
Installation kit for the Zarya mower on the Neva walk-behind tractor MB Compact Installation kit for the Zarya mower on the Neva walk-behind tractor MB1
Video reviews of NEVA MB-23 walk-behind tractors
Plowing with a plow Motoblock Neva MB-23
Operating Instructions
First start-up and running-in of the Neva MB-23 walk-behind tractor
The walk-behind tractor is started in the following sequence: after opening the gasoline tap, the choke lever is put in the "Start" position, the ignition is turned off, and then pumping with a manual starter is performed 3-5 times, the ignition is turned on and the manual starter is started.
When the walk-behind tractor starts up, the choke lever can be moved to the working position. If the walk-behind tractor is equipped with an electric starter, the ignition can be switched on immediately and brought to "Start", and the starter will pump gasoline into the carburetor. Starting should be carried out only in a horizontal position.
The run-in period of the Neva MB 23 walk-behind tractor, as well as modifications of the Neva MB 23S and MB 23N, are the first 20 hours of its operation. During this period, the following rules must be observed:
- do not overload the walk-behind tractor;
- cultivate the soil in several stages, using 4 cutters, and in one pass without going to a depth of more than 10 cm;
- do not exceed the weight of the transported cargo - no more than 200 kg can be transported;
- adjust the tension of the drive belt;
- check the oil level every day, top up if necessary;
- check and tighten bolts and couplings of threaded connections;
- change the oil after the first 20 hours of operation.
Gear shift
In order to start the movement, it is necessary to put the engine in the mode of ½ maximum revolutions, then, without disengaging the clutch, you should engage the necessary gear. Smooth pressing on the clutch will cause the walk-behind tractor to move, then it will be possible to increase the engine speed, achieving the desired speed.
To change gear, the walk-behind tractor must be stopped. For this, the clutch lever is released. Then you need to make sure that the gearbox pulley stops rotating, and then change gear. Then you can resume driving by pressing the clutch lever. To switch to the next gear, you do not need to apply much effort to the gear lever - all manipulations need to be done smoothly, without jerking.
Maintenance and basic malfunctions MB-23
Drive belt, pulley
During the operation of the walk-behind tractor, problems sometimes arise in the operation of the V-belt transmission.
The work of the V-belt transmission is carried out by a drive belt and two pulleys - wheels that transmit the movement to the drive belt.
One of the main malfunctions, according to the reviews of the owners of Neva MB23 walk-behind tractors and their modifications, is incomplete clutch release. There may be several reasons for such a malfunction:
- the belt tension when the clutch is pressed is more than normal;
- belt tension when the clutch is pressed is less than normal;
- strap delamination has occurred.
The method of eliminating excessive or insufficient tension is as follows: you need to set the normal belt tension when the clutch lever is pressed so that the deflection of the upper part of the belt does not exceed 8-10 mm, if a force of 5 kgf is applied to the middle part of the belt between the pulleys (5 kilogram-forces ).
If the belt delaminates, replace the worn belt with a new one.
If there is a malfunction in the operation of the pulleys, it is necessary to adjust them. If the axis of rotation does not coincide with the axis of inertia, the pulleys are balanced, thereby normalizing the operation of the belt drive.
Carburetor adjustment
It is advisable to keep the factory adjustment during the entire period of operation of the walk-behind tractor.
The sequence of adjusting the carburetor under operating conditions:
- screw in the screws for adjusting full and low throttle to the stop, and then unscrew it by 1.5 turns, then start and warm up the engine for about 10 minutes;
- put the engine control lever at minimum speed, while not allowing the engine to stop;
- set the minimum idle speed (with the engine running stably);
- adjust the idle speed to the maximum value with the idle screw, and then adjust the minimum idle speed;
- the last two manipulations are repeated two more times until the engine runs stably and without interruptions.
After 100 hours of operation of the walk-behind tractor, you need to change the oil in the gearbox,
Ignition, candles, spark
The reason for the ignition breakdown on Neva MB23, MB23S, MB23N walk-behind tractors is often the following:
- malfunction of the ignition coil (magneto)
- malfunction of candles
The ignition on the walk-behind tractor is configured as follows:
- the flywheel of the engine turns until the contacts inside the magneto open;
- the flywheel turns until the piston is compressed;
- check the flywheel (before knocking - this is triggered by the freewheel);
- check the flywheel to the reverse mark (counterclockwise)
- the minimum distance between the breaker contact and the cam should be 0.25 mm, and the maximum 0.35 mm;
- the cam is fixed with a screw above it.
Spark plugs fail for the following reasons:
- oily (it is necessary to remove the remaining oil);
- covered with carbon (cleaning will help);
- out of order (replacement is needed, not cleaning).
Ideally, you need to change the candles every time the season changes, that is, at least twice a year (spring-summer and autumn-winter).
If the engine does not start due to a lack of spark, the cause may be either the spark plug or the magneto. If the problem is in the magneto (ignition system), cleaning the contacts, replacing the capacitor, adjusting the clearances between the contacts can help. A defective spark plug just needs to be replaced. Also, the reason for the absence of a spark may be that fuel does not come from the carburetor (purging the fuel line and cleaning the plugs from grease will help).
Motoblock NEVA MB-23S-9.0 PRO belongs to the family of "NEVA" motoblocks of the MB-23 series (heavy motoblock with a 2 + 1 gearbox in 2 ranges), with a Robin Subaru ("C") engine with a capacity of 9.0 hp. professional class ("PRO" - EX Premium) - for heavy working conditions for a long time in large areas. Tractive effort at maximum operating weight on stubble stubble with a horizontal surface of at least 180 N (kgf).
Motoblock NEVA MB-23 is a uniaxial (with a 2x2 road formula) universal power unit. This is the most powerful and efficient walk-behind tractor in the NEVA walk-behind tractor line (from 8 to 10 hp). Designed for work on personal plots, in gardens and orchards for individual use, in farms and parks. It is used both with devices included in the standard package, and with various additional tools.
All MB-23 modifications, having cultivator cutters in the set, are designed for soil cultivation, including virgin lands, by milling and loosening. A walk-behind tractor with additional mounted and trailed equipment can perform work on plowing, inter-row soil cultivation, potato planting and digging out root crops, mowing grass, watering and pumping non-potable water, snow removal, cleaning areal areas, transporting the operator and cargo.
The main elements of the NEVA MB-23S-9.0 PRO walk-behind tractor:
Engine Robin Subaru (Japan) EX Premium Series (Yellow), Model 27, 9.0 HP The engine is assembled at the Saitama plant in Kitamoto, Saitama prefecture, Japan.
SUBARU Is a trademark of FHI (Fuji Heavy Industrie).
Robin - a brand for the production of industrial products.
EX Premium Series Are professional motors focused on high performance, increased reliability and long service life. A distinctive feature is an inclined cylinder arrangement and an overhead camshaft (OHC - Over Head Camshaft). They are characterized by compactness and low weight. Today they are the best engines in their class.
Model 27 - single-cylinder (volume 265 cc) four-stroke carbureted gasoline engine with forced air cooling. The latest technical achievements in the field of creating multipurpose engines were used in the manufacture.
Design features
provide:
Longer lifespan - forged steel crankshaft with ball bearings on both sides, electronic ignition system, cast iron cylinder liners and dual cyclonic element in the air purification system.
Maximum reliability - due to the maximum use of metal in the engine elements, a developed system of cooling channels of a special shape on the cylinder block.
Low oil consumption - thanks to vertical cylinders, advanced oil ring design and optimal crankcase ventilation.
Low noise level (2 dB lower than that of engines of this class from other manufacturers) - due to the overhead valve drive system, the use of a new air filter, as well as a rigid attachment of the muffler of optimal power.
Low toxicity of exhaust - complies with modern world standards (international environmental certificate ISO14001), clean exhaust - 500 hours.
Easy starting even at very low temperatures - thanks to the use of a large diameter reel in the starter, an automatic decompression system and a new shape of the combustion chamber.
Starting system - recoil starter with retractable lanyard / electric starter (optional) Weight dry engine 21.0 kg.
It is recommended to use unleaded motor gasoline and SAE 10W-30, 20W, 30W oil for engine operation; SAE 5W-30 - in cold regions.
The volume of the fuel tank is 6.1 liters, the volume of oil is 1.0 liters.
Fuel consumption at rated power output is about 270 g / hp. per hour (367 g / kWh).
Transmission The NEVA MB-23S-9.0 PRO walk-behind tractor consists of a clutch and a gearbox (reducer).
Clutch mechanism
- mechanical, due to the tension of the V-belt transmission.
Consists of V-belt, tensioner roller with lever, return coil spring, linkage and control lever located on the handlebar. When you press the lever on the left half of the steering wheel, the roller, moving, creates the necessary tension on the drive belt, and the rotation from the engine is transmitted to the driven pulley of the gearbox.
Reducer - mechanical, gear-chain, oil-filled (2.2 l) in an aluminum casing.
The gearbox provides the monoblock with 2 forward and 1 reverse gears. Gears are shifted by a handle on the gearbox. When the drive belt is rearranged in the grooves on the driving and driven pulleys, the second range of rotation speeds of the gearbox output axle shafts is provided. This is how 4 speeds forward and 2 backward are realized.
Gear shifting allows you to select the speed for different types of work and transport of goods. The first gear - 1.8 km / h is designed for heavy agricultural work on difficult ground - virgin soil, the fourth - 12 km / h, for the transportation of goods up to 500 kg on a transport trolley.
Semiaxis decoupling mechanism - mechanical, built into the gearbox, provides a turn (turn to the left) of the walk-behind tractor. When turned on, it makes it easier to turn the monoblock to the left as a result of stopping the rotation of the left wheel. To turn on the drive of the mechanism for unlocking the left half-axle of the gearbox, use the lever on the right half of the steering wheel. The mechanism makes it easy to turn around even with 8 cutters.
PTO pulley - a side pulley for V-belt transmission, located perpendicular to the longitudinal axis of symmetry of the walk-behind tractor. The speed is equal to the speed of the engine crankshaft. The rotation of the PTO pulley is transmitted through the V-belt transmission from the drive shaft pulley. Designed for connecting external active units.
Frame - consists of two stamped steel squares. Installed and bolted on the frame: engine, gearbox, steering wheel adjustment unit in the horizontal plane, protective wings. In the front and rear parts of the frame there are devices (bracket, hitch, pin) for installation and fastening of the recommended replaceable attachments and trailed equipment.
Hitch Brace & Hitch Bracket - are used to connect removable trailed equipment that does not require an active drive (cart, plow, hiller, potato digger, etc.).
Pin on the front of the frame - are used for mechanical connection of front attachments (rake, blade, brush, weights, etc.).
Cultivation depth limiter (opener) - is installed in the tail of the walk-behind tractor, designed to limit the depth of cultivation and speed of movement during tillage, is fixed at different heights depending on the type of cultivated soil.
Cultivator cutters - designed for soil cultivation by loosening without seam turnover and are installed on the right and left axle shafts of the gearbox.
Wheels are pneumatic - are used to move the walk-behind tractor, both separately and with mechanisms and devices installed on it.
Optional equipment
:
More than 20 types of attachments and trailed equipment have been developed for Neva motoblocks.
In addition to the wheels and milling cutters included in the standard package of the monoblock, the installation of additional attachments and trailed equipment is provided, allowing you to perform a wide range of agrotechnical, household and communal works.
These include:
Plow, harrow
Hiller one-, two-row
Vegetable picker
Lugs, hilling wheels
Motor-block frontal rake
Potato planter
Transport trolley
Shovel blade
Weighting agent
Installation of active drive tools is possible:
Brush, snow blower, rotary mower, pump.
- This is a professional walk-behind tractor, powerful, heavy. It will allow you to cope with almost all the tasks that arise in the farm, in the country and in households.
- Japanese, professional and impeccable engine Robin Subaru EX27 of the Premium series, with a maximum power of 9 horsepower, which is installed on the NEVA MB-23S-9.0 walk-behind tractor, produces a very powerful torque and provides an extra high tractive effort, so necessary for a professional walk-behind tractor ... This allows you to install heavy and load-lifting trailed equipment and any attachments. And to select the optimal gear, so necessary when using a walk-behind tractor during snow removal, plowing the soil, hilling or when using a trailer, walk-behind tractors use a high-strength gear transmission.
- The gearbox of the NEVA walk-behind tractor is heavy, reliable and gear-type, allowing all the torque received to be transmitted to an axle with pneumatic wheels, cutters or lugs. The MB-23 series is fully compatible with all possible mounted and trailed equipment from the MB-2 series motoblocks, since they are made on the same base.
- The heart of the walk-behind tractor also deserves special attention. Professional and flawless Subaru EX29 9 HP engine , which is completed, sleeve, with the upper arrangement of valves. Well proven when working with power construction equipment with increased vibration levels, such as vibrating plates, etc. And if we take into account the fact that walk-behind tractors are much inferior to vibration plates in terms of vibration, then we can make an objective conclusion that the Subaru EX29 engine is 9 hp. will have a very long service life, by the way it is more than 6500 hours.
- Such engines allow the use of a walk-behind tractor not only in the summer, they work perfectly even at temperatures, the value of which is much lower and zero. This makes it possible to use the NEVA MB-23 S-9.0 walk-behind tractor all-season, for example, when cleaning snow blockages, using a special rotary nozzle for this, which removes snow no worse than a professional snow blower.
- The presence of many more different mounted and trailed attachment modules makes this unit an absolutely universal tool that can be used all year round and for different purposes, be it snow removal, lawn mowing, transportation of medium loads and much more.
The NEVA MB-23S-9.0 PRO walk-behind tractor with a headlamp and an electric starter is the latest model of a walk-behind tractor in the line of the St. Petersburg manufacturer, which was released at the end of summer 2015. The first experimental models of this series were units equipped with American engines, but at the numerous requests of buyers, the 23rd base motoblocks with Japanese Robin-Subaru EX-27 Pro engines were also equipped with a headlight, an electric starter and a battery. The gear part of the walk-behind tractor has remained unchanged, since the NEVA gear-chain gearbox has proven itself over many years of operation from the very best side. It is also noteworthy that the tractive effort developed with the help of such a gearbox is the largest in its class and its value can reach up to 170 kgf. Such indicators allow the walk-behind tractor to work effectively with all types of soil, the unit easily copes with plowing virgin lands or any other land with a high content of loam. The tolerance for a possible slope of the site is also impressive, the NEVA MB-23S-9.0 PRO walk-behind tractor with a headlamp and an electric starter is guaranteed to be useful for slopes from 15 0 to 20 0.
The main feature of the NEVA MB-23S-9.0 PRO walk-behind tractor with a professional Japanese Subaru EX-27 Pro engine is the presence of a powerful halogen headlight and an electric starter powered by a built-in battery. Such innovations will undoubtedly have a positive effect on the comfort of working with this unit at any time of the year or day. The possibility of electric start will greatly simplify starting a cold engine in the winter season, and the headlight will allow you to comfortably perform any work even in the dark.
Special attention should be paid to the premium professional Japanese engine Robin-Subaru EX-27 Pro, which is installed on the NEVA MB-23S-9.0 PRO walk-behind tractor with a headlight and an electric start. This powertrain has a number of advantages that elevate this powertrain from other competitors. Its main features include a high service life of more than 5000 hours, high resistance to vibrations, economy and traction force of more than 19 Nm. It is worth noting that this engine model is often installed on much more complex construction equipment, which is designed to work in extreme operating conditions.
Features of the NEVA MB-23S-9.0 Pro walk-behind tractor with a headlight, an electric starter and a battery
- The presence of an electric starter allows you to quickly deliver the walk-behind tractor with one turn of the key.
- The headlamp makes it easier to work in the dark.
- The battery is already included in the standard equipment of the unit.
- Powerful chain-gear reducer with high tractive force for off-road operations.
- The gearbox housing is cast from aluminum and is completely protected from external factors.
- Wheel unlock option for increased maneuverability.
- Professional Japanese 4-stroke gasoline engine Robin-Subaru EX-27 Pro with cast iron cylinder liner.
- The presence of a power take-off shaft for working with active attachments.
- Compatible with third party attachments.
- Steering column adjustable in several planes.
- High maximum speed of the walk-behind tractor.
- Ability to work on high slopes.
- High service life.
- Service support at the highest level.
- Cable management.
- Multi-stage gearbox with 4 forward speeds (2 reduced for plowing) and 2 reverse speeds.
- The walk-behind tractor is suitable for professional use.
- The maximum working width with soil milling cutters is 160 cm (4 cutters included).
- It is allowed to transport medium loads weighing up to 500 kg.
- Belt drive.
