Service motoblock "Ugra". Features of application and operation

Every day, walk-behind tractors of various types are becoming more and more dense in the lives of homeowners. This technique allows you to simultaneously solve a large number of different tasks. One of the brightest representatives of domestic equipment of this type is Ugra. It can be equipped with various types of engines, but the principle of operation, the attachments used are completely standard, regardless of the configuration.

This technique has many advantages. But at the same time, there are certain nuances regarding the use of this type of technique. If possible, it is worth familiarizing yourself with all of them in advance. This will avoid many difficulties during the operation of the equipment.

The history of the creation of the Ugra motoblock

The walk-behind tractor itself was developed at the Kaluga Engine plant. This enterprise has the organizational form of JSC, successfully operates in 1966. Previously, this enterprise was a separate one. It is based on:

• Kaluga Turbine Plant;
• Kaluga branch of the Research Automobile and Automotive Institute.

Production at this plant is carried out on a high-precision fully automated conveyor. It is a line formed from unique foreign-made equipment. That is why Ugra walk-behind tractors are among the most reliable and functional in their price segment. This technique has been in production for more than 10 years. During all this time, the walk-behind tractor has proven itself only on the positive side.

Technical characteristics of the motor-block "Ugra"

Another reason for the popularity of this technique is its outstanding technical characteristics. Moreover, based on them, it is worth making a choice in favor of the Ugra walk-behind tractor. Since it is used to solve strictly defined tasks.

Motoblock engine "Ugra"

One of the most important features is the ability to purchase this walk-behind tractor with different engines. All of them can be conditionally divided into two groups - foreign production and domestic. They differ in performance, but their performance characteristics are practically the same. All of them are united by the use of a similar type of fuel - AI-92 gasoline.

Today it is possible to purchase a Ugra walk-behind tractor equipped with the following engines:

• Kadvi DM-1M3 - 8 hp;
• Honda GX-200 - 6.5 hp;
• B&S Vangard - 6.5 hp;
• B&S Intek - 6 hp;
• Lifan 168-F2 - 6.5 hp;
• Subaru EX-17 - 6 hp;
• Subaru EX-21 - 7 hp;
• Kadvi 168-F2 - 6.5 hp;
• Mitsubishi - 6 hp;
• Lifan 177-F - 9 HP

The choice in favor of a certain type must be made based on the nature of the soil. If it is clayey, there are a large number of stony inclusions, then it is best to purchase a walk-behind tractor with a high-power engine. If you want to process soft black soil, you can stop at a low-power engine. The processing speed directly depends on the power of a particular engine.

Reducer of the motor-block "Ugra"

The gearbox of the Ugra walk-behind tractor deserves special attention. This equipment includes a gear drive made of cermet discs. Due to this, their strength is significantly increased, as well as the duration of work. The main advantage is the maintainability of this node. All individual parts of it will not be difficult to order at the factory.

Other important advantages of the standard gearbox of the Ugra walk-behind tractor include:

• lack of drive V-belts;
• the presence of as many as 3 speeds for moving forward and 1 speed for moving backward.

Another important advantage, which is a consequence of the use of V-belts, is the absence of such difficulties in operation as jumping off, slipping, breaking. Due to all this, work with various kinds of trailers, various attachments is greatly simplified.

The figure above shows in section an example of a walk-behind tractor gearbox of this type. It includes the following main components:

Transmission of the motoblock "Ugra"

The transmission of this walk-behind tractor, regardless of the model, necessarily includes the following main components:

• reducer;
• differential;
• clutch;
• Transmission.

This type of walk-behind tractor uses a typical gear transmission. It includes bevel as well as spur gears. When assembling, the engine must be rigidly attached directly to the gearbox itself. It is attached to the angular gearbox - this is how the process of transferring rotation takes place.

It is important to remember that for the correct operation of the entire transmission mechanism, you should not try to disassemble it. Since in order to comply with the basic rules of work, certain adjustments are required. This process has its own characteristics, at home it is not only difficult, but impossible to implement.

An important advantage of this type of walk-behind tractor is the presence of a power take-off shaft. Due to this, it is possible to use attachments of various types.

Overview of models of motoblocks "Ugra"

For 2016, a distinctive feature is the presence of an extensive range of Ugra walk-behind tractors. The catalog on the official website of the manufacturer presents the following:

• NMB-1N1 - 8 hp Kadvi DM-1M3 engine;
• NMB-1N2 - Honda GX-200 6.5 hp engine;
• NMB-1N3 - Intek 6 hp engine;
• NMB-1N7 - Lifan 168-F2 - 6.5 hp;
• NMB-1N9 - Lifan EX-17 - 6 hp;
• NMB-1N10 - Lifan EX-17 - 7 hp;
• NMB-1N11 - Kadvi 168-F2 - 6.5 hp;
• NMB-1N13 - Mitsubishi - 6 hp;
• NMB-1N14 - Lifan 177-F - 9 hp;
• NMB-1N15 - Lifan 177-F - 9 hp

The most important difference between all the above models is the engine, as well as its power. The installation of a foreign unit significantly affects the cost of a particular walk-behind tractor.

- (this is the block design in CSS)

The difference between the 1H1 model, equipped with a domestic Kadvi engine and 1H15, equipped with a Chinese unit with a power of 9 hp, is about 10 thousand rubles. Moreover, this price is set at the factory. Accordingly, equipment purchased in outbid stores will cost even more.

For the most part, models equipped with a foreign-made engine are more reliable. But at the same time, they are much more difficult to repair. At the same time, the Cadmi motor cannot boast of its reliability. But, at the same time, the process of its repair takes less time. Spare parts are more available, it will not be difficult to purchase them.

Attached equipment for motoblock "Ugra"

Another important advantage of the Ugra walk-behind tractor is a large number of various attachments. Today, original attachments are available for sale:

• potato planter;
• plow;
• weighting agents;
• coupling devices;
• motoblock brush;
• cutter-cultivator;
• tiller-cultivator;
• hiller;
• harrow;
• heavy single-axle cargo trolley;
• walk-behind shovel;
• lugs;
• differential;
• digger;
• rotary snow blower;
• cutter-cultivator.

All of the above equipment can be installed on a walk-behind tractor with minimal time. Since it is not required to make any structural changes to the device of the walk-behind tractor itself. Initially, attachments are equipped with everything necessary for installation on the Ugra walk-behind tractor. That is why the best solution is to buy and then use the original attachments.

Hi all! I repaired the gearshift lever, though he jumped out again, but more on that later. Here I will describe how I inserted the lever, the procedure from my own experience.

Introduction. The gearshift lever consists of the lever itself, on which the ball bearing is fixed with two retaining spring rings (top and bottom). The lever with its lower end enters the gearbox fork (rectangular trough), where it is not additionally fixed in any way. From above, the lever from falling out is fixed with a retaining ring with an external thread, which is screwed into the gearbox housing, it fixes the lever by pressing the bearing down. This ring has a rubber boot. On top of the lever there is a gearshift control knob, it is fixed on the lever through the fork with an M6 screw.

There are two reasons for the gearshift lever to stick out:
1. The most common - the locking threaded ring untwisted, because of this, the bearing was released and the lever flew up.
2. The lower circlip of the bearing came off and fell down.

What to do in the first case?

1. As soon as the lever flew out, turn off the walk-behind tractor and try to remember what position it was in at the time of departure. Don't pull the switch, and don't pull anything at all.
2. Do not try to disassemble everything at once, drain the oil from the gearbox and remove its cover.
3. Carefully remove the rubber boot, see if the retaining ring is screwed in, if it is screwed in - see case two.
4. So, the ring is unscrewed. Try to screw it back, making sure that the bottom of the lever is in the "trough" of the gearbox.
5. Try changing gear. Perhaps everything will work if you did not move anything, but, most likely, something has already moved, and the lever in its normal position, even after switching, will not stop correctly. You can’t do anything within the limiter of the gearshift switch (the outer frame on two nuts), so carefully remove the gearshift knob, the frame, then put the handle back, carefully try to shift the gear, your goal is to pull the lever to neutral. Do not try to do this by the lever itself, only by the switch in place.
6. After some thoughtful jerking, you will get into neutral, after which you put the frame in place and collect everything completely back. Everything must work.
Attention! In order to avoid re-flying due to reason 1, it is necessary to put the d35 clamp on the boot so that it clamps the locking threaded ring and rests with the clamping screw on the walk-behind tractor gearbox housing. This prevents unintentional unscrewing of the threaded retaining ring.

What to do in the second case?

1. You have reached point 3 of the first case, the threaded retaining ring is in place - it means that your lower spring ring has flown off, which fixes the bearing from below.
2. Carefully unscrew the threaded retaining ring, lift the lever vertically up while holding the bearing. If your lever did not fly out to the end, and you reacted in time, then the retaining ring can remain on the lever itself, simply flying out of the seat, or it has moved out of the lever in the “trough” of the gearbox plug, you can try to get it out with a magnetized screwdriver.
3. Put the ring in place.
Further, everything is according to the first case, starting from point 4.

If the ring flew into the gearbox, you will have to drain the oil and remove the bottom cover, look for the washer there. Then put the cover on the sealant back. I used gray car gearbox sealant.

Unfortunately, I do not yet know a way to prevent the situation with the second case, I read somewhere that it is possible to replace the spring ring with a more rigid one. Please tell me if anyone knows what to do with this?

Motoblock Ugra is a multifunctional machine designed for agricultural work in peasant and farm enterprises, in household plots, gardens and vegetable gardens for individual use. The unit was developed and manufactured by the Russian company JSC Kaluga Engine (JSC KADVI).

Manufacturer information

KADVI is located in Kaluga along Moskovskaya Street and is a diversified enterprise with a large production base and the latest high-tech equipment. The plant specializes in the production of complex and high-tech products, such as:

• gas turbine engines;
• autonomous power plants;
• power modules;
• components for railway cars;
• reducers;
• motoblocks, cultivators;
• hanging equipment.

Motoblocks are widely used among small farmers and farmers due to the important advantages that characterize this type of agricultural machinery manufacturer, such as:

• reliability;
• functionality;
• safety;
• relief from heavy physical labor;
• increasing efficiency and productivity by mechanizing the work process;
• reduction in the number of employees;
• reduction of time for processing land;
• high maneuverability;
• lower cost compared to tractors.

In the manufacture of small garden equipment, the manufacturer took into account the specifics of the operation of the walk-behind tractor:

• type and type of cultivated soil;
• working environment;
• availability of consumables and spare parts for the unit;
• consumer budget.

Model range and specifications

The units of this series belong to medium and heavy types of walk-behind tractors with a power of up to 9 hp. With. They are equipped with different engines, but the principle of operation remains the same regardless of the configuration.

Ugra motoblock engines are divided into 2 groups:

• domestic, the manufacturer of which is "KADVI";
• foreign ones such as Subaru, Honda, Lifan, Mitsubishi, Briggs and Stratton.

The operating characteristics of power motors practically do not differ from each other. They run on AI-92 gasoline. Engine power is selected depending on the work performed and the type of soil. So, for processing clay, loamy soils with stony inclusions, it is better to choose a high-power motor, for light soil and simple agricultural procedures - a small one. The speed of processing the site also depends on the choice of engine.

Foreign motors are considered more reliable, but difficult to repair and expensive.

Reliability, ease of repair, availability of spare parts and consumables, reasonable prices are the main features of Russian power units.

Depending on the type of built-in engine and its power, the manufacturer has developed the following range of walk-behind tractors:

• 1H10;
• 1H10A;
• 1H13;
• 1H14;
• 1H15;
• 1H17.

Technical characteristics for all modifications of the walk-behind tractor are as follows:

• Working track - 405 mm.
• Full working track with wheels and extensions - 715 mm.
• Angle of static stability - 20°.
• Ground clearance - 170 mm.
• Diameter of pneumatic disks — 475 mm.
• The diameter of the lugs is 460 mm.
• Power - 5.5-9 liters. With.
• Wheel assembly speed:
  • in 1st gear - 3.61 km / h;
  • on 2 - 5.88 km / h;
  • on 3 - 8.52 km / h;
  • in reverse - 2.28 km / h.
• Travel speed with grouser:
  • in 1st gear - 3.50 km / h;
  • on 2 - 5.70 km / h;
  • on 3 - 8.25 km / h.
• Rated reverse speed - 2.20 km / h.
• Load capacity - 300-500 kg.
• The weight of cultivators is 13.2-23.4 kg.
• Overall dimensions in working order:
  • length - 1600 mm;
  • width with a cultivator - 675-1038 mm;
  • width with wheels - 600 mm;
  • height with cultivator - 1180 mm.
• Dimensions in transport position:
  • length - 820 mm;
  • width - 600 mm;
  • height - 710 mm.
• Weight - 67.5-91 kg, depending on the model.

For all versions of the walk-behind tractor, the following components are characteristic:

• mechanical gear 2-way gearbox (gearbox);
• angular gearbox;
• 2 power take-off shafts (PTO);
• steering column adjustable in 2 planes;
• wet multi-plate clutch;
• wings and elytra;
• pneumatic wheels or cultivators;
• coulter bracket and coulter.

The gearbox is characterized by the presence of 3 speeds for moving forward and 1 for reverse.

The gear ratios look like:

• for 1 gear - 3.89;
• for 2nd gear - 2.39;
• for 3rd gear - 1.65;
• reverse - 6.18.

For adjustments and control of walk-behind tractors, the following parameters must be taken into account:

1. The permissible interval between the spark plug electrodes is 0.5-0.7 mm.
2. The free travel of the transmission clutch lever is 3-5 mm.
3. Tire pressure - 2 kgf / cm².
4. Gear oil - TSn-10 GOST 23652-79 or SAE - 80-85W, API - GL3-GL4.
5. The transmission oil consumption rate is 0.001 kg/h.
6. The consumption rate of engine oil is 0.1 kg.

Ugra NMB-1N1

Motoblock Ugra 1H1 is a universal, compact mechanism, which is equipped with a domestic engine brand DM-1M3 with a capacity of 8 liters. With. and belongs to the class of professional machines. It is suitable for heavy agricultural work and can withstand heavy loads. Units and mechanisms have a large margin of safety, therefore, when carrying out technological operations in difficult conditions or when loosening dense soils, the walk-behind tractor works easily, without failures.

The unit is equipped with metal cutters, with the help of which they carry out work on weeding, cultivation, harrowing. They are freely removed and installed, which allows you to vary the width of the capture and the specific pressure on the soil during the processing.

The weight of a walk-behind tractor with a cultivator is 80.5-90.7 kg, depending on the weight of the cultivator, without steering, coulter bracket and with wheels removed - 61 kg.

According to the operating instructions for Ugra motorcycles, the performance characteristics of the 1H1 model are as follows:

• Motor type - 4-stroke.
• Engine power - 8 liters. With. (5.9 kW).
• The working volume of the motor is 317 cm³.
• Fuel tank capacity - 4 liters.
• Motor start is manual.
• Cooling - air.
• Milling processing width - 60-80 cm.
• Depth of processing - up to 30 cm.
• The speed of movement of motor vehicles is up to 9 km / h.
• Load capacity - up to 500 kg.

Ugra NMB-1N2

The advantage of the 1H2 motoblock is that the machine is equipped with a professional Japanese Honda GX 200 engine with a maximum power of 6.5 hp. With. (4.8 kW). This type of power unit is distinguished by reliability, long service life at minimum loads, good compatibility with all attachments.

Despite these qualities, at high loads or vibrations, use at low temperatures down to -5 ° C, due to a small resource, the manufacturer does not recommend intensive operation of the unit. The engine running time is 200-300 hours, which is enough for activities in small suburban areas. Therefore, it is better to use a walk-behind tractor only for domestic purposes or for processing light soil. The unit can also perform work on the movement of cargo on a trailer cart up to 350 kg.

The Honda GX 200 engine in the 1H2 walk-behind tractor has the following performance characteristics:

• Type of power unit - 4-stroke 1-cylinder with an overhead valve drive.
• Working volume - 196 cm³.
• Cylinder diameter - 68 mm.
• The piston stroke is 54 mm.
• Permissible torque - 12.4 N * m.
• Fuel consumption - 1.7 l / h.
• The volume of engine oil is 0.6 liters.
• Starting the engine - manual starter.
• The cooling system is forced air.

Structural weight with cultivators is 67.5-77 kg, operational weight with pneumatic wheels - 77 kg, without a cultivator and steering wheel with removed pneumatic wheels - 47.2 kg. The unit lends itself to quick disassembly and is transported even in a passenger car.

When processing light sandy soil with cutters, the coverage is 80 cm, the depth of cutting of the soil is up to 30 cm. The speed of the walk-behind tractor can reach up to 9 km / h in 3rd gear.

Ugra NMB-1N5

Motoblock 1H5 is an excellent assistant in private and public utilities. It performs any tillage task regardless of soil density. In the presence of special attachments, it removes snow blockages, harvests hay, waters fields and lawns, plants potatoes, pumps water and transports loads up to 350 kg.

This is facilitated by a reliable gearbox of the Ugra walk-behind tractor, a gear gearbox and a high-performance 4-stroke I / C 6.5 HP engine of the American company Briggs & Stratton with a power of 6.5 liters. With. (4.8 kW) with a longitudinal arrangement of the shaft, with a volume of 206 cm³ and air cooling.

The Briggs and Stratton Intek I/C 6.5 powertrain is considered the finest of the luxury Intek I/C series. The engine is characterized by flawless operation for a long time with proper maintenance and care, correct and timely oil changes, as well as quick and easy starting with the help of a decompression valve built into the unit, which reduces cylinder pressure during start-up.

The motor block motor with an overhead valve arrangement is equipped with a double filter - cartridge air and foam rubber, pre-cleaning, which provides enhanced protection against dirt and dust ingress into the units of the unit. Cast iron sleeve reduces oil consumption. With increased power, torque increases and productivity increases.

The width of tillage with cutters is 70-90 cm, the depth is up to 30 cm.

The weight of a walk-behind tractor with pneumatic wheels or a cultivator is 90 kg.

The main advantage of the NMB-1N5 gasoline walk-behind tractor is the silent operation of the machine, which does not interfere with the operator to perform agricultural procedures.

Ugra NMB-1N7

Mototechnics 1H7 belongs to the heavy class of motoblocks developed by the KADVI plant. The unit has high operating qualities, is intended for processing land plots up to 4000 m², for mechanized cleaning of the territory in all weather conditions throughout the year.

The walk-behind tractor is equipped with a professional lowering angle support, a ceramic-metal disc clutch and a Lifan 168F-2A commercial gasoline carburetor engine from the Chinese company Lifan.

The Lifan 6 HP (Horizontal) engine model of the F series is the most powerful power unit in the model range. This is a horizontal 4-stroke 1-cylinder engine with a capacity of up to 6.5 liters. With. with cooling air system and forced circulation, manual and electric starter. The working capacity is 196 cm³, the piston diameter is 68 mm, the stroke is up to 54 mm. Maximum performance is reached at 3600 rpm.

For engine operation, gasoline at least 85 and SAE 30 oil in summer or all-weather SAE10W30 are used.

The capacity of the fuel tank in the 1H7 walk-behind tractor is 3.6 liters, the oil volume is 0.6 liters.

At rated power, 1.4 l / h of fuel is consumed at 3600 rpm.

The plowing width of the soil with 6 foot cutters for loosening corresponds to 102.5 cm, with 4 cutters - 73.5 cm with a diameter of 31 cm.

The depth of soil cultivation is 30 cm when the cutters rotate at a frequency of 35-85 rpm.

Motoblock 1H7 has the following design features and advantages:

• Cast iron sleeve.
• The possibility of using fuel of low quality, which does not affect the stability of the equipment.
• Moderate noise level.
• Fuel economy.
• Forced air cooling.
• Vibration protection on the steering column.
• Instantaneous shutdown of the equipment using the stop control lever.
• Lubrication of engine parts under pressure.
• Transistorless TC1 ignition, easy start from a place.
• Operation of the safety system from starting at a low level of oily liquid.
• A fuel valve that shuts off the fuel supply to the carburetor during transportation.
• Ease of use, easy maintenance.

Ugra NMB-1N9

The NMB-1N9 unit is a classic heavy-duty walk-behind tractor, which is a milling motor-cultivator assembled at the KADVI motor plant with a 3x1 gearbox, disc clutch and engine from the Japanese manufacturer Robin Subaru.

Robin Subaru Ex 17 / Ex 17 Premium belongs to the premium luxury series Ex Premium of powerful power units with a long service life, high resource and maximum efficiency. Carburetor gasoline 4-stroke 1-cylinder engine has a rated power of up to 6 liters. With. (4.4 kW), displacement 169 cm³, inclined cylinder arrangement and overhead valve drive. Fuel consumption at maximum power is 367 g/kWh.

The NMB-1N9 model cultivates the soil with an area of ​​4000 m².

The crankshaft is positioned longitudinally to reduce vibration when cultivating uneven, bumpy surfaces and increase durability.

The walk-behind tractor is aggregated with attachments of 2 PTOs, a trailing bracket and pneumatic wheels. This factor makes the machine more versatile and comfortable to use.

Ugra NMB-1N10

The NMB-1N10 technique is the 2nd generation of the 1N9 walk-behind tractor with the same parameters, but more powerful. The unit is equipped with a Robin Subaru Ex 21/Ex 21 Premium gasoline engine with increased up to 7 hp. With. power at 4000 rpm. The agroblock is designed for professional work on land plots of medium and large area.

The operating parameters of the 1H10 model are presented as follows:

• Soil processing width - 90 cm.
• Loosening depth - 32 cm.
• Engine capacity - 211 cm³.
• Fuel tank capacity - 3.6 liters.
• The volume of oil is 0.8 l.
• Ground clearance - 200 mm.
• The weight of the motor vehicle is 91 kg.

The device develops a speed of 2.2-8.5 km / h in 3rd gear. Traction force at nominal operating weight is 0.466-0.78 kN depending on the wheels.

In NMB-1N10, an option has been developed to adjust the width of the tires, which allows you to select the ride height when processing row spacings.

Ugra NMB-1N10A

The 1H10A motoblock is equipped with an even more powerful Japanese Robin Subaru EX-27 engine with a power of 9 hp. With. and a tank capacity of 6.1 liters. It is used for processing heavy, virgin areas with stone inclusions.

The traction force of 100-130 kgf ensures stable revolutions.

The engine noise level is 30 dB less than that of a diesel walk-behind tractor with the same power.

The engine starts quickly and easily at low air temperatures.

When aggregated with additional attachments, the walk-behind tractor can cope with any task.

Ugra NMB-1N13

The 1H13 gasoline agroblock is a professional, powerful, heavy agricultural unit from the Russian manufacturer KADVI, which is equipped with a Japanese Mitsubishi GT-600 6 hp engine. With. with a working capacity of 170 cm³, characterized by a long resource, high engine speed of 3000 rpm, excellent quality and reasonable price.

Model 1H13 is used for cultivating uncultivated lands containing dense clay, sandy and loamy soils, it is indispensable in private farms and farm fields of medium and large sizes up to 20,000 m². The volume of the fuel tank is 3.1 liters. This is sufficient for large scale work and high loads. The motoblock is located on a heavy frame, has a weight of 98 kg, which enhances traction.

Fast and efficient processing of virgin soil is directly affected by the cutting width of cutters up to 90 cm, the depth of cutting layers - 320 mm.

The load capacity of the walk-behind tractor is up to 500 kg.

The package includes 4 cutters, transport wheels, axial extensions.

Ugra NMB-1N14

A high-performance machine from the NMB-1N model range is a 1H14 walk-behind tractor with a power of 9 hp. With. The power unit Lifan 270F-2A (China) produces up to 3600 rpm, consumes a small amount of fuel - 2.1 l / h - and has a low noise level.

Machine 1H14 weighing 98 kg and a working width of up to 90 cm productively cultivates large land plots up to 20,000 m². Due to its compactness, size and maneuverability, the device can work in tight, limited areas.

The engine capacity is 270 cm³, the volume of the fuel tank is 6 liters.

The machine's large 47.5 cm wheels make it easy to negotiate uneven, bumpy terrain. The presence of 3 forward speeds - from 2.7 to 6.4 km / h - makes control easy and simple, reverse at a speed of 1.7 km / h makes it possible to pull the walk-behind tractor out of pits and ravines if it gets stuck.

Ugra NMB-1N15

Model 1H15 is an improved version of the previous model 1H14. The Russian manufacturer of motoblocks decided to replace the Lifan 270F-2A engine with a manual starter with the Lifan 177FD LF Horizontal model with electric start to simplify starting from a standstill. This option is provided by an electric starter.

The operational parameters and design features have not changed and remain the same as those of the NMB-1N14 unit.

Ugra NMB-1N17

The 1H17 gasoline unit belongs to the class of medium walk-behind tractors. It is equipped with an excellent Lifan 170F engine with a power of 7 hp. With. and is designed for intensive use at an engine speed of 2500 rpm at a speed of 2.7-6.4 km/h, in reverse - 1.7 km/h.

The walk-behind tractor is used for cultivating sandy, black earth, loamy soils in small and medium-sized areas, for agricultural and agricultural work with attached active auxiliary devices.

The operational characteristics of the NMB-1N17 are as follows:

• The number of speeds is 3 forward / 1 reverse.
• Capture width on 4/6 cutters - 735/1025 mm.
• Soil cutting depth - 320 mm.
• Reducer - angular, gear.
• The capacity of the gearbox oil fluid is 1.7 liters.
• Engine - gasoline carburetor 4-stroke 1-cylinder.
• Volume - 211 cm³.
• The volume of the fuel tank is 3.7 liters.
• Steering column adjustable - 2 positions.
• Pulling force - 0.466-0.78 kN.
• Wheel formula - 2x2.
• Wheel size - 47.5 cm.
• Weight - 98 kg.

Attachment

The Kaluga plant "KADVI" produces attachments for the 1H series Ugra walk-behind tractor in order to expand its functionality. A powerful engine with 2 PTOs and a transmission with a large margin of safety allows you to expand the set of mechanisms on the machine. So, with the help of 2 PTOs, both the rear and front attachments are aggregated.

Auxiliary equipment mechanizes the workflow, increases productivity and productivity. Installation and maintenance of mechanisms does not cause difficulties, installation time is minimal.

Mowers

Rotary mowers are intended for mowing young grass, small-stemmed shrubs, dense grassy vegetation up to 1 m high with increased productivity, which are found on roadsides and slopes with a steepness of 20 ° and a side slope of 8 °.

The mowed grass is laid in an even roller in a row. The grass mowing capacity is 0.2 ha/h at the mower's operating speed of 2.87 km/h. The cutting disc rotates at a frequency of 2370-2635 rpm.

Single axle trolley

The cargo 1-axle trolley is used to transport loads up to 350 kg over short distances at a speed of up to 9 km/h. Overall dimensions - 120x160x34 cm.

A potato planter is a mounted tool for planting potatoes with embedding them in the soil and forming an earthen ridge. The track width of 0.6-0.7 m and the maintained distance between tubers of 30-50 cm allow you to create even rows and row spacing to improve further weeding, hilling and increase the yield of root crops.

Many owners of equipment make a tool on their own. The algorithm for making a homemade potato digger is simple: 3 sheets of metal are welded together and attached to a walk-behind tractor with a special fastener.

potato digger

For motoblocks, diggers of lancet and screen types are suitable.

Universal lancet guns are the simplest and have low efficiency.

The sieve-type potato digger extracts up to 97% of tubers from the soil and increases productivity. The top layer of soil, together with root crops, is picked up from a depth of up to 200 mm and fed to a vibrating table. The gripping width is 380 mm. Under the action of vibration, the earth falls out through the cracks, the vegetables move into the container.

Such equipment is attached to the walk-behind tractor using a holder and fasteners.

Mill-cultivator

The most important and useful tool is a cultivator cutter. This type of attachment allows cultivating the soil, loosening, chopping grass and weeds, mixing mineral and organic fertilizers to a width of 100.5 cm and a depth of 20 cm.

On Ugra agroblocks, 6-sided cultivators with a cutter diameter of 34 cm are used, in which there are no connecting fingers. Therefore, cut and chopped vegetation is not wound during operation.

For tight adhesion to the ground and increase traction when processing areas, lugs are used.

The manufacturer produces lugs for the Ugra walk-behind tractor in 2 versions:

• with 6-sided bushing;
• with a cylindrical bushing.

The diameter of the gun depends on the type of walk-behind tractor and varies between 350-500 mm.

The mass of the kit reaches no more than 18.8 kg.

Weights

Weights for the model range of walk-behind tractors are intended to enhance the adhesion of lugs to the soil, facilitate work with a mounted implement, increase the stability of the unit, and increase its mass. They have a weight of 10-17 kg and are containers filled with sand, cement or other bulk material. They are mounted on wheels with a diameter of at least 38 cm with drilled holes.

Plow

A plow is an attachment used for plowing a land plot and applying fertilizers. The efficiency of the tool is achieved in areas up to 0.4 ha with a working width of up to 215 mm.

The plow is attached to the walk-behind tractor with a hitch, holder and bolted elements.

The factory dimensions of the gun are 53.5x31x41 cm.

Harrow

The Ugra harrow for motor vehicles is a frame with teeth weighing 12 kg and a working width of 80-90 cm. The device is made for leveling the site after plowing, cultivating and harvesting, protecting the soil from drying out, destroying the soil crust and eliminating weeds.

Hitch

A hitch for a walk-behind tractor is equipment for hanging a plow, hiller and other mechanisms on a walk-behind tractor and adjusting their position.

The overall dimensions of the coupling device produced by KADVI are 435x130x175 mm, weight - no more than 5.2 kg.

Motozavod "Kaluga engine" for the model range of equipment has developed a rotary snow blower for efficient snow removal in yards and household plots. The unit is able to quickly clear snow-covered areas with precipitation up to 20 cm high at a speed of 1 m/s. The processing width in this case reaches 70 cm. The snow blower throws snow through the bell to a distance of up to 5 m. Steel skis are adjusted by the operator in height.

Motoblock brush

Motoblock brush ShchM-0.9 - mechanical equipment for cleaning yards, personal plots, sidewalks from debris, sand, snowfall. The structural elements are made of high-quality, durable materials. The angle of rotation of the brush shaft is adjustable for ejection to the right or left side by 18°. 2 support wheels increase the maneuverability of the unit and reduce the load on the frame.

The motor-block brush is convenient and easy to use, has a weight of up to 45 kg and dimensions of 700x1000x760 mm.

A walk-behind shovel is an indispensable device for cleaning the area from snow, sand and debris. The equipment is compact and lightweight, which is 13 kg with dimensions of 1000x280x370 mm.

earth drill

An earth drill is a special equipment for mechanized drilling of holes in the ground with a diameter of 200 mm for the installation of supports, poles, planting large-stemmed plants and other earthworks.

The drill is powered by the PTO of the walk-behind tractor and is attached to its rear part through a 3-edema device.

Ride module

The driving module was developed by the KADVI company for installation to the walk-behind tractor. The AMPK-500 motoblock all-wheel drive adapter is the latest device equipped with a comfortable seat for the operator, a braking system, a body and a trailer. He does a lot of work with little effort.

The overall dimensions of the device are 2550x1350x1140 mm.

Ripper-hiller

Okuchnik is used for weeding plants, root crops, cutting ridges. The tillage width reaches 42 cm. The weight of the tiller is 4.5 kg, overall dimensions are 540x170x445 mm.

Motoblock device

The walk-behind tractor consists of the following main components: engine 1, transmission 2, running gear 3 and controls 4.

Rice. 1Motoblock device Ugra NMB-1

Engine and its support systems

The motoblock drive is a classic internal combustion engine with all the systems necessary for its operation. Light and medium-sized cars use four-stroke gasoline engines. Heavy-duty motoblocks are often equipped with diesel engines.

Rice. 2 The device of a four-stroke gasoline engine (Honda) of a walk-behind tractor: 1 - fuel filters, 2 - crankshaft, 3 - air filter, 4 - part of the ignition system, 5 - cylinder, 6 - valve, 7 - crankshaft bearing.

Most motoblock users have to deal with air-cooled four-stroke gasoline engines. These engines have the following systems to ensure their operation:

• A fuel supply system designed for preparing an air-fuel mixture, consisting of a fuel tank with a cock, a fuel hose, a carburetor, and an air filter.
• Lubrication system that provides lubrication of rubbing parts.
• A starting mechanism (starter) designed to spin the crankshaft. Many engines are equipped with an easy start mechanism that reduces the starting force by using a device on the camshaft that opens the exhaust valve on the compression stroke and thereby reduces the compression in the cylinder when the crankshaft spins up. Heavy walk-behind tractors are sometimes equipped with battery-powered electric starters. Some models have electric and manual start. The latter is used as a backup.
• A cooling system that removes heat from the engine cylinder block by a stream of air pumped by the flywheel impeller when the crankshaft rotates.
• An ignition system that ensures uninterrupted sparking at the spark plug. A rotating flywheel with a magnetic shoe induces an emf in the magneto, which is converted by an electronic circuit into electrical signals supplied to the candle. As a result, a spark jumps between the contacts of the latter, igniting the air-fuel mixture.

Rice. 31 - electronic magneto, 2 - screw, 3 - magnetic shoe.

Rice. 4The starting mechanism and ignition system of the Cascade MB6 walk-behind tractor: 1 - starter handle, 2 - fan housing, 3 - protective casing, 4 - cylinder, 5 - cylinder head, 6 - magneto, 7 - flywheel.

• The gas distribution system responsible for the timely entry of the air-fuel mixture into the engine cylinder and the release of exhaust gases. The composition of the gas distribution system includes a silencer designed for the directed release of exhaust gases and noise reduction.

Transmission

The transmission is used to transmit torque from the engine to the wheels and change the speed and direction of movement of the walk-behind tractor. It usually consists of several units connected in series with each other: a gearbox, a differential (in some models), a clutch, a gearbox. These elements can be structurally performed as separate units or combined in one housing. The gearbox serves to switch speeds, which can be of different numbers (up to 6 forward and 2 rear), and at the same time is a gearbox.

By their type, transmission units (reducers and gearboxes) can be gear, belt, chain, or various combinations of both.

classical gear transmission, consisting only of cylindrical and bevel gears, is used mainly on heavy walk-behind tractors and some models of medium machines. As a rule, it has a reverse and several lowering steps.

The figure below shows the gear transmission of the Ugra NMB-1 walk-behind tractor, consisting of cylindrical and bevel gears. The engine is rigidly attached to the gearbox, which in turn is rigidly connected to the bevel gear. The design of the NMB-1 walk-behind tractor does not have chain and belt drives, which, according to its developers, are an unreliable link in transmissions due to the tendency to break, damage and belt slippage.

Rice. 5Motoblock Ugra NMB-1 with gear transmission

Rice. 6The design of the transmission of the motor-block Ugra NMB-1

Rice. 7Scheme of the gearbox of the Ugra NMB-1 motoblock: 1 - Clutch fork, 2 - Retaining ring, 3 - Adjusting ring, 4 - Bearing, 5 - Retaining ring, 6 - Adjusting ring, 7 - Retaining ring, 8 - Cuff, 9 - Retaining ring, 10 - Bearing, 11 - First gear and reverse gear, 12 - Second and third gear, 13 - Adjusting ring, 14 - Bearing, 15 - Driven gear shaft, 16 - Driving gear shaft.

Rice. 8Scheme of the angular gearbox of the Ugra NMB-1 (N) walk-behind tractor: 1 - Locking ring, 2 - Adjusting ring, 3 - Bevel gear, 4 - Adjusting rings, 5 - Bearing, 6 - Intermediate gear shaft, 7 - Upper housing, 8 - Output shaft, 9 - Adjusting rings, 10 - Bearing, 11 - Bevel gear, 12 - Retaining ring, 13 - Boot cup, 14 - Boot, 15 - Cuff, 16 - Adjusting rings, 17 - Lower housing, 18 - Adjusting gasket, 19 - Bearing, 21 - Cover, 22 - Gear, 23 - Gear, 24 - Shaft.

The torque from the crankshaft is transmitted to the drive shaft 16 (Gearbox Diagram) of the gearbox and is removed from the bevel gear of the driven shaft 15 by the vertical shaft 6 of the angular gearbox (Angular Gear Diagram), which transmits rotation to the hexagonal shaft 8 of the drive wheels. In order to avoid disruption of the correct operation of the transmission, it is not recommended to disassemble the walk-behind tractor transmission, which can lead to a misalignment of the gears.

The gearbox by its design is mechanical two-way with 3 gears forward and 1st reverse. The transmission has two power take-off shafts (A) and (B).

Worm and gear transmissions , consisting of two gearboxes - the upper gear and the lower worm gear - are usually used on light walk-behind tractors. The crankshaft of the engine has a vertical arrangement. Sometimes machines with a gear-worm transmission are equipped with a centrifugal automatic clutch. A similar device of a walk-behind tractor provides an increased compactness of the unit.

Belt-gear, belt-chain and belt-gear-chain transmissions are quite common in light and medium walk-behind tractors. The engine rotates the shaft of a gear or chain gearbox using a belt drive, which is also a clutch. Gear-chain transmissions are often implemented in one crankcase.

For a belt drive, to change the speed of the walk-behind tractor and take off power, the pulleys can have an additional stream. The advantages of such a transmission include a simpler disassembly and assembly of a walk-behind tractor than in the case of a gear transmission.

The clutch function is implemented using a tension roller and a control mechanism consisting of a link and a system of levers that allow you to change the position of the roller that tightens or loosens the belt and, accordingly, turns on or off the transmission of torque from the engine to the gearbox. Gear shifting is carried out with the help of two-strand pulleys. By rearranging the belt from one stream to another, they get a different speed of the walk-behind tractor.

As a rule, motoblock transmissions have PTO shafts, providing the transmission of torque to the working bodies of the machine. By their type and location in the transmission, power take-off shafts can be independent, located before the clutch and rotating regardless of its state (disengaged or engaged), or dependent, located after the clutch, and synchronous to a certain gear. In one walk-behind tractor there can be several power take-off shafts - different in type and speed of rotation.

Clutch

The clutch, which is part of the transmission, performs several functions. Transfer of torque from the engine crankshaft to the gearbox (gearbox) shaft, disconnection of the gearbox and engine during gear shifting, ensuring smooth starting of the walk-behind tractor and stopping it without turning off the engine.

Structurally, the clutch can be performed in different ways. In the form of a V-belt transmission (see above), the tension or loosening of the belt of which with the help of the clutch lever leads to the transfer or termination of the transmission of torque from the engine to the gearbox. Or in the form of a single-disk or multi-disk friction dry or wet (oil) clutch, which is more reliable and is used in most models of walk-behind tractors. Some machines use a much rarer conical clutch.

On the already considered walk-behind tractor "Ugra" LLC "Kadvi" a clutch is installed, which is the most traditional in its design - a friction multi-plate clutch with a pressure spring operating in an oil bath. The device of a walk-behind tractor with such a clutch should provide for a crankcase for the clutch, where gear oil is poured.

Rice. 9Ugra NMB-1 walk-behind tractor clutch scheme: 1 - Motor shaft, 2 - Drive half-coupling, 3 - Driven half-coupling assembly with release bearing, 4 - Belleville spring, 5 - Drive disks, 6 - Driven disks, 7 - Spring thrust ring.

Rice. 10Clutch lever: 1 - Axle, 2 - Fork, 3 - Clutch half, 4 - Lever, 5 - Clutch cable, 6 - Bolt, 7 - Nut, 8 - Washer, 9 - Spring washer, 10 - Sleeve.

The clutch consists of a driving half-coupling 2 (motoblock clutch scheme), a driven half-coupling 3, a belleville spring 4, leading 5 and driven 6 discs, a thrust ring 7. It works as follows. When the clutch lever is released, the Belleville spring compresses the driven and driving discs assembled in the package alternately. Due to the friction between the discs, torque is transferred from the engine to the gearbox. When the clutch lever is depressed, the force is transmitted via a cable to the clutch release lever 4 (Clutch lever). In this case, the clutch fork 2 compresses the spring through the driven half-coupling and release bearings, separating the driven discs from the leading ones and stopping the transmission of torque.

Differential

To improve maneuvering and smooth turns, the design of some walk-behind tractors (mainly heavy ones) provides for a differential. The purpose of the latter is to ensure the rotation of the left and right wheels at different speeds. Differentials can be with or without wheel locking. Instead of a differential, mechanisms can be used to turn off one wheel while driving.

Chassis

The chassis of the walk-behind tractor is a frame on which the main components and wheels are fixed. Sometimes the frame is missing, and its role is played by the transmission, to which the engine and wheels are attached.

In most walk-behind tractors, the distance between the wheels can be changed, this makes it possible to set the track of different widths. Two main types of wheels are used - conventional pneumatic and weighted metal wheels with wide lugs. Weights can be welded to the wheels or bolted to them. Many designs of metal wheels provide for the fastening of loads of various weights. This allows, if necessary, to increase the weight of the walk-behind tractor to values ​​that provide the necessary grip of the wheels with the ground.

Metal wheels can be with a solid rim or made in the form of two or three narrow hoops interconnected by lugs. The first ones have the disadvantage that the ground accumulates between the lugs, which prevents good adhesion of the wheels to the ground.

Rice. elevenMetal lugs

Governing bodies

The controls are a set of mechanisms that provide a change in the direction of movement and speed of the walk-behind tractor. These include: steering wheel, levers and gearshift rods, clutch control levers, supply of "gas", emergency stop of the engine, etc. Since the design of motoblocks, with very rare exceptions, does not provide for a seat for the operator, the motoblock device must ensure its control with one hand.

Some controls (carburetor air damper, power take-off, etc.) are located on the corresponding units and assemblies.

Rice. 12Handlebar right

1 - Handle, 2 - Throttle lever, 3 - Safety clutch cable, 4 - Hollow cable adjustment bolt, 5 - Locknut, 6 - Safety clutch lever.

Rice. 13Handlebar left

1 - Handle, 2 - Lever "Stop", 3 - Switch, 4 - Clutch cable, 5 - Hollow bolt for cable tension adjustment, 6 - Locknut, 7 - Retainer, 8 - Clutch lever.

"Ugra" belongs to the class of Russian-made heavy walk-behind tractors. The unit was developed by the Kaluga motorcycle manufacturer Kadvi. The factory warranty for the product is given for a period of 24 months.

In addition to the main function - working with the soil - "Ugra" can be used as a snow blower, a device for collecting and removing garbage, digging potatoes and other root crops, and even an earthen drill when using the appropriate attachments.

There are many modifications of the Ugra walk-behind tractor, however, each of them is united by certain features.

• gear reducer and gearbox;
• adjustable steering column (horizontally and vertically);
• two power take-off shafts (allow you to attach additional equipment that is rarely used - pumps, drills, feed crushers);
• powerful engines of domestic or foreign production (depending on the modification: Cadvi, Vanguard, Honda, RobinSubaru, Lianlong, Lifan, DM, Intek);
• power from 5.5 to 7 horsepower (depending on the model of the walk-behind tractor and the type of engine).

  Robin Subaru EX 21 engine Mitsubishi engine, 6 hp
  

In addition to the advantages of technical equipment, the Ugra walk-behind tractor also has a number of other advantages, including:

• compactness and ease of assembly and transportation;
• high power of work due to the impressive weight;

The components of the unit include:

• governing bodies,
• transmission,
• power part,
• cultivator,
• fender wings,
• coulter and hitch, wheels.

Cutters can be added to the kit upon request before purchase (at the request of the buyer).

The power unit and the transmission are coupled to each other, the steering part, hitch, opener, wheels and wings, as well as wheels or a cultivator are attached to them. In some modifications, the kit includes two protective disks for cutters.

Running in

The basic rules for launching, running in and operating the Ugra:

1. before the first start, make sure that the walk-behind tractor is ready for work - assembled, standing on a flat surface, filled with oil and fuel to the recommended rate;
2. after the first switch-on, the next 25-30 hours are a break-in period, and during this period it is allowed to load the walk-behind tractor at two-thirds of the power;
3. it is advisable to start work at a positive temperature, if the walk-behind tractor is used in winter, it is kept in a warm room at positive temperature until it is turned on;
4. it is forbidden to change gears without stopping the walk-behind tractor;
5. it is necessary to regularly carry out maintenance and replacement of worn parts of the walk-behind tractor;
6. on dense soils, the coulter must be installed with the tip to the ground so that the walk-behind tractor can quickly slow down;
7. for an urgent stop, use the "Stop" lever;
8. make the first passes of dense or frozen soils in low gears;
9. during the break-in period, you should work with a walk-behind tractor on soils that have undergone preliminary processing;
10. after the break-in is over, change the oil, refuel the walk-behind tractor.

Please note that these rules apply to all Ugra walk-behind tractors, regardless of modification. Be sure to read the instruction manual for the unit before using it.

Overview of the Ugra walk-behind tractor, running in a video review:

Change of oil

According to the operating instructions for walk-behind tractors, transmission oil should be: Tsn-10, GOST 23652-79, as well as all brands according to SAE: 80-85W, API: GL3-GL4.

For the engine: TAD-17I, TAP-15V, any oils in accordance with GOST 23652-79, as well as high quality synthetic or semi-synthetic oils for machine engines.

Changing and adding oil is carried out:

• of necessity;
• during scheduled technical inspections.

Scheduled maintenance interval: maximum every 100 hours of operation.

Unscheduled technical inspections are possible in case of malfunctions or if it is necessary to disassemble the engine and carburetor. Next, we will consider in more detail the main types of breakdowns of Ugra walk-behind tractors and methods for their elimination.

Installing and replacing belts

The main advantage of the latest models of Ugra walk-behind tractors is the absence of driving V-belts. As such, there is no need for replacement.

On older models it is possible to use belts: profile - A, size - 1213 mm.

Lighting

Currently, all Ugra modifications produced by the Kadvi plant are not equipped with a headlight or light source. However, some farmers install the headlight on their own or create switches on their walk-behind tractors using batteries.

The lighting is connected using an electric generator, which, in turn, is connected to a button located on the steering wheel.

Installing a lighting coil on a walk-behind tractor

Checkpoint scheme

The figures below show a diagram of the gearbox (in longitudinal section) on the Ugra walk-behind tractor

The following figure shows a gearbox with a longitudinal section along the reverse axis.

Self-assembly of the gearbox during the warranty period is recommended to be carried out only in service centers for servicing walk-behind tractors. After the warranty period has expired, independent maintenance and troubleshooting of the gearbox is allowed.

Clutch

The figure below shows a diagram of the clutch of the unit with an indication of the constituent parts.

Further, the photo shows the places of service and control of the functionality of the Ugra walk-behind tractor. You should pay attention to them during daily and scheduled technical inspections.

1 - caliper, lower case;

2 - output shaft;

3 - drain plug;

4 - shift lever;

5 - blocking device;

6 -breather;

7 - drive shaft-gear;

8 - driven shaft-gear;

9 - oil plug.

Major breakdowns and their causes

Major breakdowns include:

• incomplete disengagement and engagement of the clutch
• extraneous noise during operation of the gearbox;
• violation of free gear shifting, their self-shutdown;
• oil leak;
• any extraneous noise of unknown origin.

Possible troubleshooting steps:

• in case of incomplete on / off gears: strengthen the fastening connections, replace parts that are worn out, adjust the clutch;
• upon detection of extraneous noise in the box: replacement of bearings, worn parts, tightening of bolts and nuts of fasteners;
• in case of difficulty or self-disengagement of gears: replacing gears, learning how to shift gears correctly, replacing a spring or gear shaft;
• in case of oil leaks: cuffs are replaced, nut connections are strengthened, checking the oil level with a dipstick;
• in case of any extraneous noise, it is first necessary to identify the source of the noise, it can be helped to eliminate it: tightening the nuts, adjusting the bearings, replacing the cuffs and gears.