Overview of the Kadwi MB 90 engine block and its modifications. Characteristics of application and operation

I would like to start the review of the Kadwi 90 engine block and its modifications, and I would like to mention that these are the first agrotechnical devices that were produced at the “Kadwa” Motor Plant in Kaluga in the late 90s. However, now these modifications are no longer produced, and the Kadwi-MB-90 line, however, was very popular among farmers and private landowners.

Engine block Kadwi MB 90

The manufacturer put its own production engines on the Walk behavior tractor, they differed in high reliability, but had relatively low power. Later, in order to increase the capacity of agricultural units, the manufacturer made a decision to switch to foreign engines with greater power, which successfully reflected on the motblocks of subsequent generations (“Ugra” and “Oka”), which the MB ones supplanted 90 series.

Kadwi MB-90 and its model range

Motoblock received recognition from both domestic and foreign landowners. These units were included in the most popular models of domestic promo. The power plant 1-DM, although they did not differ in high power, but various agricultural works on small and medium-sized land plots.

The design of the unit offered two VOM, which made it possible to cling to the owner of the Kadw-90 Motornote, different hinged and trailing guns, the same Kadvievsky power plant.

With the help of the Kadwi MB-90 Motornote it became possible to mechanize the following processes:

the cultivation of the floor with cutter;
to plow;
planting crops and harvesting;
Mowing;
Transport of piece and bulk goods;
Clear snow;
watering plants;
cleaning of territories etc.

A speed gearbox is installed on the Kadwi MB-90 walk-behind tractor. The box is mechanical and allows you to turn on four front speeds and four reverse. The center of gravity is specially underestimated by the manufacturer, so the best stability of the walk tractor appeared. The conical differential affects the maneuverability of the agrotechnical device.

A special clutch lock is constantly turned on, so gear shifting occurs in a simplified mode using a special lever.

Engine block MB 90

The NEVA MB-1 engine block has been in production since 1984 and during this time has gained the trust of many users. It has been modernized and improved, but there are still working copies of the 90s release.

The manufacturer of the Neva Motoblocks is the Krasn y-Oktoberwerk of the city of St. Petersburg. This is a specialized company for the production of moto-selkhoz equipment. The first Neva tractor was released in 1984.

The tractor for walk behavior is constantly being modernized and has been popular with customers so far because it has been tested time after time. The manufacturer has developed and completed this technique with a new multi-agro gearbox with an increased number of gears.

In the NEVA Motoboblok, MB1 Multiagro offers 3 front programs and 1 rear hand. By arranging the belt on a tw o-bi o-strap disk you can get another set of gears, also a functional purpose. Therefore, you can choose the right speed for every agricultural and business company, which increases the performance of the work done.

In addition, the multiagro transmission is characterized by an increased equipment ratio that improves the traction that is associated with traction.

The gear lever is carried out on the steering wheel, which is convenient as a vehicle when using the MB 1 Walk behavior.

When modifying MB1-FS/MB1-FS premium, the presence of an electric starter, which is driven by the installed battery and the generator of the engine, enables the start and also enables the headlights to be used at night. To start the device, it is not necessary to pull the hand starter. You can simply turn the ignition key.

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Motoblock NEVA MB-1 Detailed technical features

Motobobok type (GOST 28523-90)	Average
Dimension dimensions: length * width * height, mm no longer	MB1: 1600x660x1300 MB1 Premium: 1600x660x1300 MB1-FS: 1650x660x1300 MB1-FS Premium: 1650x660x1300
Mass, dry, kg, no longer	MB1: 75 MB1 Premium: 75 MB1-FS: 85 MB1-FS Premium: 85
Traction force on transpural bikes with a load of 20 kg, kg, no less	140
The angle of transversal static stability, degree, no less	15
Limits of the ambient temperature with	From minus 25 to plus 35
The progressive speed (second value in the new arrangement of the belt) is moved on pneumatic bikes if the engine speed is 2500 rpm (max, engine torque), km/h	MB1/MB1-FS: The first gear 2.1/2.6; Second gear 7.4/9.2; Reversing of 1.8/2.3; MB1 Premium/MB 1-FS Premium: The first gear 1.9/2.4; The second gear is 3.7/4.6; The third gear is 6.6/8.3; Reversing of 1.6/2.0;
The progressive speed (the second value in the new arrangement of the movement belt) on pneumatic wheels at motor speeds 3600 rpm (max. Modeling of the engine), km/h	MB1/MB1-FS: The first gear 3.0/3.8; Second equipment 10.6/13.3; Reversing of 2.6/3.3; MB1 Premiummb1. FS Premium: The first gear 2.7/3.4; Second equipment 5.4/6.7; The third gear is 10.0/12.6; Reversing 2.3/2.9;
Performance selection wave (BQM) (GOST28524-90)	The side window under the Cunelar gang perpendicular to the longitudinal axis of the symmetry of the MB. The speed corresponds to the speed of the crankshaft of the engine.
The possibility to install adhesive devices	There is an active (harvest brush, snowbrissing, water pump, lawn mower) and passive through the clutch (hip, plow, cart, snow cipper, potato trailer).
The chassis	Single axes, wheel formula – 2 × 2
Street freedom, MM	120
Coupling coupling	Constantly switched off, switch on – voltage rolls for a wedge belt
transmission	Mechanical, with bilateral
Number of programs	MB1/MB1-FS ((2+1) 2): Four gear front line; Two programs – vice versa. MB1 Premiumb1-FS Premium ((3+1)2): Six gear front line; Two programs – vice versa.
tires	Pneumatic – 4.00*8; 16 × 6.50-8
track	Variable, adjustable step
Trade width, mm	Normal 320 with extension cables 570
Diameter of the milling cutter, mm	360
Axis diameter (hub)	30 cm
Capture Width, M	6 milling cutters of 1.2 4 mills 0.86
Floor processing depth, see	Up to 20
Steering gear	Rod, with the possibility of intermediate installations of the steering wheel in vertical and horizontal planes
fog lights	MB1/MB1 Premium: — MB1-FS/MB1-FS Premium: 202A,3743
lamp	MB1/MB1 Premium: —MB 1-FS/MB1-FS Premium: NC 12V 55W
battery	MB1/MB1 Premium: — MB1-FOMB1-FS Premium: DT 1218
Automatic backup	MB1/MB1 Premium: — MB1-FS/MB1-FS Premium: F133 10A
engine	MB1/MB1 Premium: 4-stroke, carburetor, petrol, forced air-cooled single cylinder
fuel type	Pure gasoline AI – 92, AI – 95
Engine oil	SAE 10W30, SAE 10W40, SAE 10W50, SAE 15W30, SAE 15W40, SAE 30, SAE 40
engine cooling	Air
Reducer (oils used and operating temperature)	Transmission oil SAE85W-90 API GL-5 (it is allowed to use TM-5 oil (fro m-25 to +35) GOST 17479.2-85). Filling volume l., 1.5.
Belt	A53
Air pressure in pneumatic tires:	4.00-8 – 1.5 +0.2 kgf / cm 2 16 × 6.50-8 – 2-0.2 kgf / cm 2

Instruction manual for the Kadvi walking tractor

The package for each of the Kadvi MB-90 line of walk-behind tractors includes a manual that contains the following information about the technique:

Motoblock device (in diagrams and descriptions).
Specifications of the selected model.
Mounted Equipment.
First start guide.
shrinking
maintenance steps.
Malfunctions and ways to eliminate them.

Repair of engine blocks (Kadvi: Oka and Ugra, Salyut, Agro, Kaskad, Favorit and others) and engine cultivators.

Recently engine blocks and engine cultivators

are widely used in agriculture, in summer cottages and garden plots, on farms. Like any other engine equipment, engine blocks and engine cultivators require warranty or post-warranty repairs. When a walking cultivator or two-wheel cultivator breaks down in the summer season, then the work practically stops, which is why it is so important to carry out a quick repair with a guarantee or to take care of a routine inspection of your walking cultivator or a walk-behind cultivator beforehand.

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When you go to a service center to get a specialist, you usually need to know the following information about your walk behind tractor or cultivator:

Which gearbox is installed (gear or chain),

Year of construction of the two-wheel tractor MK (because different ignitions were installed in different years of construction, etc.).

Device model MB-90

A standard two-wheel tractor consists of the following components:

four-stroke single-cylinder power plant;
rigid frame;
wheelset;
handlebar;
transmissions;
Chassis.

The elements of the main units and mechanisms are:

PTO leading;
PTO drive;
Differential;
manual transmission;
reduction gear;
disc clutch;
leverage.

Which walk behind tractor do you choose “oka” or “ugra”

We chose Khoper, now it’s time to evaluate the Oka and Ugra walk-behind tractors, which, by the way, are manufactured at the same plant – Kaluga Engine. I would like to point out right away that attachments are perfectly combined into both units.

Photo Motoblock “Ugra” NMB1N1

We offer to compare the technical characteristics of both machines, which are given in the table:

main node	Motoblock ok	Motoblock Yugra
coupling	V-belt transmission	disk clutch
transmission	Chain	gear
PTO shaft	the load is removed from the motor axis pulley	2 splined shafts
Transport weight, kg	87	61
transmission	Mechanical 2 speeds (forward/reverse)	3 speed speed, 1 – back
engine	Subaru, Lifan, etc.

The data from the table shows some design differences related to power choices, such as B. Transmission and clutch, the number of gears and weight. Motors in both units are installed from leading brands – only high quality and time-tested.

Consider the features of the machines of the “Ugra” brand in more detail:

The manufacturer introduced a line of nine Ugra engine blocks.
The control point is mechanical, gear.
Reducer – equipment.
There is a button of emergency of the machine.
Additional hinge tools were developed for “Ugra”:
Boers;
circular;
Nozzle for crushing the feed.
The presence of vibration protection.
Motoblock conforms to recognized world quality and safety standards.

Equipment not assembled

The reason for the great demand for the Kadwa line of engine blocks was caused not only by the reliability of the device, but also by a wide range of hinges and trailing devices. These hinges significantly expanded the functionality of the Walk behavior tractor, making farm work easier for both farmers and summer residents. We list the attachment equipment made for a series of engine blocks “Kadwa” MB-90:

cultivation cutter.
plows.
Pigtails.
Snow removal technique (brush, dump, snow blower).
Harrow.
Pumps.
overpers.
Potato.
Signs of root crops.
ground wheels.
pneumatic wheels.
weight load.
Adapter.
Pointed car.
club mechanisms.
ox extensions etc.

We encourage you to watch a video on how to configure the plow on the “Kadwa” motoblock:

maintenance

The maintenance of the Kadvy Motornote consists of several phases:

Oil change:
For a gearbox, it is better to use gear oils such as T85W90, TAD 17. Replace every 100 working hours.
Daily care:
Works at the end of the operation (cleaning from pollution, washing and drying, lubrication).
Preservation for the period of prolonged downtime (with the obligatory drain of working fluids).
Planned technical tests.

Reviews of the owners

Andrey, 52 years old:

Good day. MB-90 is my first motblock to help a newly minted farmer into the dashing 90’s. My small farm at that time consisted of 50 hectares of land. I decided to grow potatoes for sale. He worked manually for the first year, then took out a loan for a walk, and now a white streak began. Now I could have plowed and planted and collected and others, then the wanderlust tractors were in the novelty – I helped the same novices as myself. The engine, although weak, but worked, sometimes there were problems with the start, but it was still better than manual. I paid a loan the first year. After a while I bought the land from the neighbors, expanded, now I have 5 hectares of land. Now I am already processing the tractor, my sons in assistants. But I grateful for the MB-90 engine grade, during those years he helped me feed my family and put it on my feet.

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Vladimir, 48 years old:

I bought this unit for a summer residence – compact, like the best of the trunk, it fits into the trunk and all of this. The car is not bad, of course the work breaks regularly. The engine of the natives was sufficient for 6 years, then life on the advice of friends – it is powerful and new and more resistant. Now the old man is still plowing, but everything is sent more often for repairs. I am looking for a replacement for him, I don’t know if the modern Kaluga engine is as good as before.

device

Motoblock MB 1 was very popular in due course, namely in the eighties and nineties of the last century.

Then the special device market was filled with products from the Soviet factories, under which the “beam” products were seen as one of the best. Motoblock “Ray” MB 1 confidently started with a similar Nive Motor Torn.

He regularly performed his main function – processing of a field or garden, transportation of goods: harvest, firewood, building materials. At this point, the spread of domestic trailers began, and the tendency to transform these motlocks into min i-actractors.

It is important for the parts of petrol and oil for the chainsaw: characteristics of the production of the fuel mixture

Although the technical properties of the “beam” of MB 1 are inferior to modern motblakes in many ways, they were at a height during the highlight of its distribution – the mass of the device in compound form is one hundred kilograms, a speed of 3.6 to 9 Kilometers per hour on a flat motorway, it invites you to 8-99 kilometers per hour.

The acceleration on a hundred principle is possible, but only under very specific conditions that everyone has hardly recreated. The fuel consumption is 1.5-2 liters per hour, the volume of the fuel tank is 3.6 liters, so that experienced drivers always have a reserve of a canister with fuel.

Its big plus is that the engine does not require constant oil casting – it is quite in time if necessary. Motoblock is quite easy to manage – this process does not require great physical exertion.

The minimum dream required for a curve has a radius of only 1100 millimeters. The movement movement is smooth, thanks to the chain gear with cuneiform gearbox, the gear shifting occurs gently without jerking.

Further details about the Motorlock Beam mb1 a.m.

The gearbox of the tractor of the walk behavior is quite reliable, has two forward and two backs, and a powerful engine for such a product is 5 hp, offers a good traction and stable speed. High indicators for consistency and clutch with soil are reached with a large profile due to pneumatic tires.

MB 1 is also suitable for transport thanks to a quick steering wheel and bikes. With regard to possible problems, the repair of the Luc h-Motornote is not a serious problem.

In all the years in which farmers, summer residents and owners of farms, a large amount of information about quick, inexpensive and reliable repairs has accumulated. Thanks to the experience of the owners who have found all the causes of malfunctions, you can repair your motoblock “Ray” without unnecessary costs.

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The malfunctions of how serious they would not have been can be removed in a home workshop with the help of the most common tool without using specialists. The only thing that is required by you is the diagnosis of collapse as precisely as possible, and then the matter is small.

Overview of the Kadwi MB 90 engine block and its modifications. Characteristics of application and operation

Kadwi MB-90 and its model range

The design of the unit offered two VOM, which made it possible to cling to the owner of the Kadw-90 Motornote, different hinged and trailing guns, the same Kadvievsky power plant.

With the help of the Kadwi MB-90 Motornote it became possible to mechanize the following processes:

the cultivation of the floor with cutter;
to plow;
planting crops and harvesting;
Mowing;
Transport of piece and bulk goods;
Clear snow;
watering plants;
cleaning of territories etc.

A special clutch lock is constantly turned on, so gear shifting occurs in a simplified mode using a special lever.

Read more: Review of Prorab GT-750 engine blocks. Technical characteristics, features of application and operation

Kaluga Motorwerk created the following modifications of this tractor for walk behavior:

“Kadvi” MB-90m.
MB-90M1.
“Kadvi” MB-90M2.
MB-90M3.

The latest modification, Kadwi MB-90m3, unlike previous models, is equipped with a foreign 7.5 hp Vanguard 7.5 hp engine.

Equipment of all modifications is approximately the same:

soiline (cultivators);
soshnik;
pneumatic wheels.

Instruction manual for the Kadvi walking tractor

The package for each of the Kadvi MB-90 line of walk-behind tractors includes a manual that contains the following information about the technique:

Motoblock device (in diagrams and descriptions).
Specifications of the selected model.
Mounted Equipment.
First start guide.
shrinking
maintenance steps.
Malfunctions and ways to eliminate them.

Device model MB-90

A standard two-wheel tractor consists of the following components:

four-stroke single-cylinder power plant;
rigid frame;
wheelset;
handlebar;
transmissions;
Chassis.

The elements of the main units and mechanisms are:

PTO leading;
PTO drive;
Differential;
manual transmission;
reduction gear;
disc clutch;
leverage.

Equipment not assembled

cultivation cutter.
plows.
Pigtails.
Snow removal technique (brush, dump, snow blower).
Harrow.
Pumps.
overpers.
Potato.
Signs of root crops.
ground wheels.
pneumatic wheels.
weight load.
Adapter.
Pointed car.
club mechanisms.
ox extensions etc.

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We encourage you to watch a video on how to configure the plow on the “Kadwa” motoblock:

The first start of the engine and running

The leadership of the first start describes the procedure for the first start of the engine. This is necessary before this procedure begins:

Pour fuel into the fuel tank.
Pour oil into the corresponding containers.
Check the pressure in the pneumatic bikes.

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Playing is a process that increases the power plant and all parts of the tractor of the walk behavior. The enema begins immediately after the first start and takes about 20 to 25 hours (not longer than 2 hours of work a day).

The period of runnin g-i n-saving regime, if there is a grinding of the floo r-in three stages with diving passages by no more than 10 cm per pass. At the end of the term, it is necessary to completely replace the oil in the tractor of the walk behavior and refill it with fuel.

maintenance

The maintenance of the Kadvy Motornote consists of several phases:

Oil change:
- For the power plant, 10W40 engine oil is recommended. It must be changed every 20 hours of operation.
- For a gearbox, it is better to use gear oils such as T85W90, TAD 17. Replace every 100 working hours.
Daily care:
- Before starting operation, work (check oil and fuel, reliability of fasteners and pressure in pneumatic wheels):
- Works at the end of the operation (cleaning from pollution, washing and drying, lubrication).
Preservation for the period of prolonged downtime (with the obligatory drain of working fluids).
Planned technical tests.

Video review

We recommend watching a video that shows this Walk behavior at work:

Reviews of the owners

Andrey, 52 years old:

Good day. MB-90 is my first motblock to help a newly shaped farmer in the cutting nineties. My little farm at this time consisted of 50 hectares of land. I decided to grow potatoes for sale. He worked manually for the first year, then he took out a loan for a walk, and now a white strip began. Now I could have plowed and plowing and collecting and others, then the hiking loss tractors were in the novelty – I helped the same beginners as myself. The engine, although weak, but sometimes seemed problems with the start, but it was Was still better than manual. I paid a loan in the first year. After a while I bought the land from the neighbors, expanded, now I have 5 hectares of land. Now I already process the tractor, my sons in assistants. But I’m grateful for the MB-90-Motorn note, during these years he helped me to feed my family and put it on my feet.

Vladimir, 48 years old: