The wheeled tractor model MTZ-1221 is a universal representative of equipment used for row crop work. Its functionality covers a wide range of agricultural needs. Belarus-1221 can be used in crop production for applying fertilizers, tilling soil, preparing feed, chemicalizing plants and crops, and even for loading and transport purposes. Will be able to cope with any reclamation activities. Whether it is supplying water for irrigation systems or draining areas with high humidity. Applicable regardless of climate zone and soil type. The tractor has proven itself well in road construction and forestry.
Belongs to traction class No. 2.
It has a wide range of capabilities and is convenient for performing tasks in conjunction with other devices, devices and components. A distinctive feature of the MTZ-1221 is the low cost of spare parts, economical fuel consumption, and high reliability. Due to the simplicity of the design, it quickly undergoes technical diagnostics. This copy is produced by the Minsk Tractor Plant. In addition to the standard one, there are two more possible modifications:
- The first is called MTZ 1221L, and is designed for use in the forestry industry. It has a set of additional devices for working with timber, planting, unloading, collecting, assembling bundles and transporting them.
- The second is called MTZ 1221V.2. It differs from the standard assembly in that the control is reversible.
Repair of the MTZ 1221 tractor: Description of the main parameters
- The tractor is equipped with a D-260.2 engine with a power of 130 horsepower. The rotation speed is 2100 rpm.
- Dimensions: 4950 mm in length, 2859 mm in height and 2250 mm in width.
- The mass of the unit is 5120 kg, and the pressure it produces on the ground is 2 centners per centimeter of area.
- The agricultural clearance reaches 62 cm, and the full turning radius is 500 cm.
Repair of the MTZ 1221 tractor: Approximate fuel consumption
The fuel tank of the MTZ 1221 can hold a maximum of 160 liters of fuel, the consumption of which is 3.8 g/kW per minute.
Repair of the MTZ 1221 tractor: Engine characteristics
Belarus-1221 has a powerful four-stroke D-260.2 six-cylinder engine with a turbine. The engine is not picky about the type of fuel and meets all environmental standards. Can compete with advanced foreign analogues.
Repair of the MTZ 1221 tractor: Features of the new model
Significant differences in the transmission used are:
- the presence of 3-disc brakes (dry or wet);
- planetary gearboxes and a differential with support for three modes installed on the rear wheel axle;
- reinforced rear axle and clutch.
The installed hydraulic system is worthy of special attention, the power cylinders of which can be located both horizontally and vertically. It is characterized by ease of maintenance and the presence of an autonomous filtration mode.
Posts located on the roof of the cab and in the cab, on the right side of the operator, allow for control. The cabin frame is made of rigid profiles, which makes it safer. The glass is tinted and has a convex shape. The emergency hatch and ventilation are located on the roof. The model has significantly improved sound, moisture and thermal insulation.
Estimated cost
The price of a new tractor varies between about 1.5 million rubles. A used tractor will cost twice as much. One of the factors influencing the cost will be the additional equipment installed.
Download manuals for repairing the MTZ-1221 tractor yourself
| Educational posters on the construction of the Belarus-1221 tractor RUP MTZ Year of release: 1999 Format: rar (58 MB) Brief description: A series of posters on the construction of the modern tractor Belarus-1221, consists of 30 posters, which show: a section of the general view of the tractor; engine; engine mechanisms and systems; transmissions; hydraulic systems; steering; general diagram of electrical equipment; arrangement of instruments and assembly units of electrical equipment; arrangement of the hydraulic system and its units; controls; pneumatic drive of trailer brakes, as well as posters on lubrication and tractor maintenance. The posters are intended for training in the specialty “tractor driver of agricultural production” in schools of primary and secondary vocational education. |
| Catalog of assembly units and parts edited by Stasilevich A.G. Year of release: 2013 Format: rar (200 MB) Brief description: RUE "MTZ" is constantly working to improve its products and reserves the right to make changes to the design and technical data without prior notice to consumers. Some symbols, names and illustrations shown in this book may differ from those actually on your tractor. For detailed information, contact your dealer and use the newsletters issued by MTZ and sent to consumers on a regular basis. |
Today, the Minsk Tractor Plant mass-produces a large line of models of self-propelled machines for agricultural, transport, road-building and earth-moving purposes. Among them, the most common and popular is 1221 tractor - a universal row-crop brand of wheeled equipment. Also referred to as Belarus-1221 or 1221 MTZ.
The future consumer will be satisfied with the wide range of applications of the MTZ tractor in the field of crop production, livestock farming, irrigated agriculture and land reclamation (ploughing, plowing, etc.), municipal and forestry, industry, and road construction. It is noteworthy that the prototype of the model is used in the game Farming Simulator 2020 under the working title MTZ 1221 sarex. The detailed description of the vehicle set out in the article will introduce you to the technical characteristics of the MTZ 1221, its advantages and disadvantages.
Main purpose
Most often, this small tractor is purchased, of course, by farmers. The MTZ-1221 model was developed specifically to perform a wide range of agricultural work. Most often, this technique is used to prepare the soil for pre-sowing. The tractor copes with this task perfectly both on light soils and on heavy alumina and even on virgin soil.
In addition, the MTZ-1221 m model can be used in agriculture for mowing and for transporting various types of cargo. In gardens, this model is often used to form the crowns of fruit trees and berry bushes. In this case, a special type of attachment is attached to the tractor - a brush cutter.
Where else can it be used
Very often, such tractors are also purchased by utility workers. In this area, MTZ-1221, whose technical characteristics are actually very good, is most often used for transporting garbage and branches. Also in cities, this tractor is used to clear snow from streets. Of course, this model can be used on the streets of big cities and as a brush cutter. In construction, the MTZ 1221 series tractor is most often used to transport various types of loads. On roads it is usually used when performing pothole repairs of asphalt.
This model is popular in various spheres of the national economy, including its relatively low cost. The price of new MTZ tractors of the 1221 series is approximately 1200-1250 thousand rubles.
Why do the front wheels of the MTZ-82 “run”
The cause of these problems lies in several possible breakdowns of various systems, and the most common of them are listed below:
- First of all, the tractor driver should check how evenly the cylinders are inflated, since due to their large size, the volume of air in them is also considerable; the slightest imbalance can cause vibrations.
- It is also necessary to determine the amount of pressure itself, because deep mud grips hit the surface with force when driving at high speed, causing the tractor to rock. This effect is especially pronounced when too much pressure is pumped into the wheels on the MTZ, and the driver should slightly deflate the tires to a maximum pressure of 1.2...1.4 atm.
- The draft arms may be poorly balanced or become loose during intense field work. So, if such a problem occurs, it is necessary to eliminate the freedom of movement of individual parts in these elements, and the vibration will suddenly disappear. In addition to the rods, you should also check the shafts, couplings, ball joints, bipods and sectors, each of which has threads with nuts and, accordingly, needs periodic tightening.
- If the tractor has gone more than a year without maintenance or has survived the winter at rest, the flexible cuffs can be significantly damaged, which will inevitably lead to leaks on the hydraulic elements. This deficiency is especially pronounced in the power steering distribution head, which must be eliminated by replacing the cuff or clutch.
- One of the main problems when the effect of wheel loosening occurs is wear of the hubs, bearings and axle, which leads to free lateral movement of the wheel, affects the toe-in and camber of the wheels, and this causes vibration, eating up rubber and other unpleasant consequences. If such a problem is discovered after disassembling the hub, it must be immediately eliminated by replacing the bearing or assembly part, since it can subsequently damage the entire suspension on the tractor.
- In addition, if wear of these parts is not noticed, it is worth checking the nuts and studs for fastening the wheel rim, since this effect is often caused by the banal loosening of the nuts or by the fact that the increased load on the studs tears off part of the thread from it. For preventive maintenance, you should also inspect all other washers, nuts, bushings and other fasteners or consumables.
The front wheels of the MTZ-82 tractor must be replaced exclusively in pairs, since the purchase of only one tire may result in loss of effective operation. That is, one side will cling to the dirt more effectively, while the old tire will begin to slip. All this will lead to incorrect operation of the traction rack, motor and imbalance of the entire mechanism.
MTZ-1221: technical characteristics of the model
This tractor is popular among consumers primarily, of course, due to its excellent performance characteristics. Utility workers, farmers and construction workers praise it not only for its high build quality, reliability and versatility, but also for its excellent performance.
What specific characteristics the MTZ-1221 tractor has can be seen in the table below.
Model MTZ series 1221
| Characteristic | Parameter |
| Engine power | |
| Number of cylinders | |
| Fuel consumption at rated power | 226 g/kWh |
| Fuel tank capacity | 160 liters |
| Transmission | Mechanical, synchronized |
| Forward/reverse speed | 2.1-33.8/4.0-15.8 km/h |
| Hydraulic system capacity | |
| Front/rear wheel track | 1545-2265/1500-1900 mm |
| Ground clearance under front/rear axles | |
| Turning radius | |
| Front/rear tire size | 14.9R24/18.4R38 |
Why is it best to buy a MTZ gearbox?
In order to purchase a transmission from the Minsk plant, it is not at all necessary to go to Belarus. Rosdiesel offers very attractive prices and this is not the only advantage of this company:
- Delivery throughout Russia.
The required checkpoint or any spare part for it will be delivered to any part of the Russian Federation from Vladivostok to Kamchatka.
- New and used gearboxes.
Customers will find on sale not only factory-lubricated transmissions, but also used transmissions that have been factory reconditioned. Only original spare parts were used for repairs.
- Possibility of gearbox repair.
If desired, the client can submit an existing gearbox for restoration. It will be repaired in the shortest possible time and such work is covered by a long warranty.
- Moderate prices.
A trip (or order) to the Republic of Belarus to purchase the unit will cost a pretty penny. It is much more profitable to order the part from an official dealer. All you have to do is wait for her arrival, then you can start repairing or upgrading the tractor.
Attachments
As already mentioned, the MTZ-1221 tractor belongs to the group of universal heavy wheeled vehicles. It can be mounted with a variety of types of attachments. In addition to a plow, mower, brush cutter and trolley, these can be forks, grabs, blades, road milling machines, etc. Of course, attachments such as a bucket are also used for this tractor. In this case, the capacity of the latter can be 0.38-1 m 3.
Control of the operation of attachments on this model is carried out depending on the configuration by means of:
- two vertical power cylinders built into the hydraulic receiver;
autonomous horizontal power cylinder.
The temperature of the working fluid of the tractor hydraulic system is adjusted without operator intervention. The model 1221 has a three-point hitch system. Aggregation with equipment and adjustment of the latter’s position in space is carried out using strong braces and braces. Oil of both domestic and imported origin can be poured into the tractor hydraulics. This does not affect the service life of the unit in any way.
Characteristics of the MTZ Belarus 09N walk-behind tractor
The MTZ Belarus 09N walk-behind tractor with a Japanese Honda engine has already established itself in the agricultural machinery market due to its practicality, versatility and reliability.
Distinctive characteristics of the walk-behind tractor:
- four-stroke single-cylinder gasoline engine Honda GX270 with a displacement of 270 cm3 and a power of 9 horsepower;
- manual transmission: four forward and two reverse gears;
- the power take-off shaft rotates at a frequency of 1200 rpm;
- pneumatic tires have a size of 6L-12, their internal pressure is 0.08-0.12 MPa, which depends on the degree of load;
- the supply of gasoline is controlled by a lever with a cable drive;
- manual multi-plate clutch;
- rod steering, which can be converted to reverse. It can be adjusted to suit the height of the operator, as well as in the horizontal area.
The MTZ Belarus 09N walk-behind tractor is sold with a set of spare parts and tools, and an instruction manual. Before using the equipment for work, you need to run the walk-behind tractor for 50 hours. Such running-in increases the service life of all components and parts. Processing should be carried out at partial load.
Chassis models
The MTZ-1221 transmission is structurally somewhat different from that used on tractors of previous models. The rear axle axle shafts of the 1221 equipment are reinforced. This allows you to use more powerful and heavier attachments with the tractor without the risk of damage. The front axle, like the rear, is driven. In this case, the tractor can use both planetary and beam-coaxial versions. The model’s brakes can be either “dry” or “wet”.
The MTZ-1221 clutch is a double-disc, friction, permanently closed type. The leading part of the coupling for this tractor is the flywheel, basket and middle element. In this case, the driven disk includes two disks, supplemented with torsional vibration dampers.
Tractor cabin
This model has earned good reviews from machine operators, among other things, for the fact that you can work on it with relative comfort. The interior of the tractor is decorated with fabric and plastic panels. The cabin looks quite modern. There is a hatch in the tractor roof. The large glass area provides the operator with a good overview. The cabin can be ventilated either through the hatch or through the opening rear window. All main controls in the cabin are located on the right.
The cabin frame of the model is made of bent shaped profile and is characterized by a high degree of reliability. Outside there are rear-view mirrors, light signaling devices and a sun visor. The front window of the model is equipped with an electric windshield wiper.
"Belarus" was created specifically to perform a wide range of agricultural work and is able to satisfy any need of a farmer for hard work. The tractor's traction class is 2.0, which allows it to be used both for soil preparation in pre-sowing operations and for transport and utility work. The versatility of the MTZ-1221 lies in the classic layout for this class of tractors. The tractor can be used when cultivating various types of soil in the most severe climatic conditions.
Thanks to a wide range of additional equipment, accessories and towing devices, MTZ-1221 can be combined with modern equipment and agricultural machines. The tractor inherited from its predecessors the traditional simplicity of design, high performance and reliability.
Tractor engine MTZ-1221
As a power unit, the tractor uses a diesel engine D-260.2S with a power of 130 hp. (96 kW) equipped with turbocharging. The modern in-line six-cylinder engine meets all safety and environmental requirements, and also features very modest oil and diesel fuel consumption. The MTZ-1221 engine can use both imported and domestic fuels and lubricants and may well be comparable to foreign analogues of this class.
Cabin
The MTZ-1221 tractor is equipped with a modern, comfortable cabin. The cab frame is made up of bent shaped profiles to ensure the safety of the tractor driver. To protect from direct sunlight during operation, tinted spherical glass is used. The main tractor controls are located inside the cabin. The interior of the farm tractor cabin has a simple taste with the use of carpets and upholstery. The roof of the MTZ-1221 cabin contains an emergency hatch and a ventilation system. For greater comfort, the cabin is soundproofed using sound-absorbing upholstery and mastic. Rear-view mirrors, a sun visor and light signaling devices are mounted outside the cabin. The cabin complies with ROPS and OECD safety standards. Electric windshield wipers are provided on the front and rear windows.
Hydraulic system MTZ-1221
In order for the tractor to be able to control various trailed and mounted equipment, it has a hydraulic system that controls trailed, mounted and semi-mounted agricultural equipment. It is possible to install two types of separate-unit hydraulic systems on the tractor:
– with two vertical hydraulic cylinders built into the hydraulic lift; – with an autonomous horizontal hydraulic cylinder.
The tractor hydraulic system is simple and easy to maintain. The oil tank has a sufficiently large capacity to work with hydraulic equipment that requires a large volume of oil to drive the working parts. Both domestic and imported oil can be filled into the MTZ-1221 hydraulics.
Technical characteristics of MTZ-1221
| Engine model | 260.2С |
| Power, kW (hp) | 96 (130) |
| 2100 | |
| Rated rotation speed, rpm | 2100 |
| Number of cylinders | 6 |
| Cylinder diameter/piston stroke, mm | 110/125 |
| Working volume, l | 7,12 |
| Maximum torque at 1400 rpm, N.m (kgf.m) | 500 (51) |
| Specific fuel consumption of MTZ-1221 at rated power, g/kWh. (g/hp.h.) | 226 (166) |
| Torque reserve factor, % | 20 |
| Fuel tank capacity, l | 160 |
| Rear PTO: independent, two-speed with hydromechanical control system. | |
| Differential lock: friction, automatic with hydraulic drive; has 3 operating modes: | — Disabled — Automatic on and off — Forced on |
| Clutch | dry, double-disc, permanently closed |
| Transmission | mechanical, synchronized, speed, 6-range (4/2) |
| Gear shift | synchronized clutches |
| Number of gears: forward/reverse | 16/8 (24×12) |
| Travel speed, km/h: forward | 2,1-33,8 |
| Travel speed, km/h: reverse | 4,0-15,8 |
| Rear PTO: | independent two-speed with hydromechanical control system |
| independent I, rpm | 557 |
| independent II, rpm | 1000 |
| synchronous, r/m path | 4,36 |
| Load capacity on the axis of the lower link joints, kgf | 4500 |
| Maximum pressure, kgf/cm? | 200 |
| Pump capacity, l/min | 55 |
| Hydraulic system capacity, l | 21 |
| Wheelbase, mm | 2760 |
| Total length, mm | 4950 |
| Width, mm | 2250 |
| Cabin height, mm | 2850 |
| Track, mm on front wheels | 1545-2265 |
| Track, mm on rear wheels | 1500-1900 |
| Ground clearance, mm under the front axle | 620 |
| Ground clearance, mm under rear axle | 465 |
| Smallest turning radius, m | 5,3 |
| Operating weight, kg | 5300 |
| Front tire sizes | 14.9R24 |
| Rear tire sizes | 18.4R38 |
1221 is designed to perform work in municipal, agricultural and forestry on different types of soil. Special air conditioning and heating devices allow you to work in different climatic conditions. Due to the fact that Belarus 1221 can be equipped with trailed and mounted equipment, it is used in industry and construction. Tractors of this series are reliable, have high productivity, use fuel and lubricants economically and are easy to diagnose their technical condition.
Tractor Belarus MTZ 1221
Order a commercial offer
MTZ 1221 is a new generation tractor:
- 6-cylinder in-line diesel 95.6 kW (130 hp) with turbocharging;
- cabin with rigid frame;
- synchronized transmission with planetary wheel reduction gears of the rear axle;
- front drive axle with planetary wheel reduction gears;
- separate-aggregate hydraulic system with a monoblock or an autonomous horizontal hydraulic cylinder;
- possibility of converting the tractor operation to reverse mode
Tractor MTZ 1221 class 2.0 with a power of 95.6 kW (130 hp)
designed to perform a full range of agricultural work, from soil preparation for sowing to harvesting and transport operations. Can be used in forestry and municipal services, construction, industry. The tractor is adapted to work in various soil and climatic zones and on all kinds of soils, including soils with low bearing capacity. Having a wide range of various accessories and units of additional equipment, as well as towing devices, the tractor is capable of being aggregated with a variety of agricultural machines and equipment, making full use of its functionality in a unit with wide-cut and combined machines of both class 2 and some machines of class 3 with re-adjustment of the coupling elements of the front and rear linkage mechanisms. Tractors have traditional simplicity of design, high reliability and productivity, are economical in the consumption of fuel and lubricants, operating materials, spare parts, are adapted to various types of monitoring and diagnostics of technical condition, and can be equipped to operate in operational and long-term modes in reverse.
MTZ 1221 technical characteristics
All-wheel drive, high power and a second draft class are the main features of the MTZ 1221 tractor. Technical characteristics indicate that it is equipped with a six-cylinder, in-line, four-stroke diesel engine D-260.2S with turbocharging.
Engine power is 96 kW or 130 horsepower. The nominal crankshaft rotation speed is 2100 rpm. Other technical specifications
| Maximum torque at 1400 rpm | 500 (51) N.m. (kgf.m) |
| Specific fuel consumption | 226 (166) g/kWh. (g/hp.h.) |
| Working volume | |
| Torque reserve | |
| Fuel tank capacity | 160 l |
| mechanical, synchronized, speed, 6-speed | |
| Travel speed, km/h: forward | 2,1-33,8 |
| Travel speed, km/h: reverse | 4,0-15,8 |
| Number of gears: forward/reverse | 16/8 (24×12) |
| Hydraulic system capacity | |
| Wheelbase | |
| total length | 4950 mm |
| Width | 2250 mm |
| Cabin height | |
| Front wheel track | 1545-2265 mm |
| Rear wheel track | 1500-1900 mm |
| Smallest turning radius | 5.3 m |
| Operating weight | |
| Ground clearance under the front axle | |
| Ground clearance, mm under rear axle |
Tractor MTZ 1221 price
: from 500,000 to 1,500,000 rubles, depending on modification and condition.
Mechanical wheel locking on the MTZ-1221 tractor
In some cases, on the most inaccessible sections of roads, a classic rear-wheel drive or four-wheel drive tractor cannot cope with a thick layer of mud and return to its track.
This locking system has the following fairly simple design and principle of operation:
- The locking itself is made in the form of two cams, each of which is securely fixed on the drives of standard gears of the device, on the inside of the shafts, which in turn have a special grinding of the end to ensure play of these cams and the couplings installed on them.
- These couplings are connected to a drive made in the form of a separate pedal and lever on one side and, accordingly, to a locking and turning device on the central shaft at the opposite end.
- So, if necessary, the operator simply presses the locking drive pedal, the clutch moves in the space allocated for it, entails a shaft and a locking device, which securely snaps onto the gear, preventing further freedom of rotation of each wheel axle separately.
- This lever with a pedal in the cabin has a spring and automatic reverse action and, if released, it will return to its original position, and the differential lock will be removed and the wheels will begin to rotate normally.
- For longer fixation of the locking lever for the MTZ-1221 tractor, there is a special stopper on the pedal, pressing which causes the clutch to remain in the locked position for a longer time.
Minsk Tractor Plant produces seven modifications of the MTZ 1221 tractor
1. Tractor 1221T.2
Designed for sowing grain crops, harvesting dry grass and straw. It can be used for transport and towing work, since it is possible to increase traction or traction by locking the differential.
Control system for differential lock (BD) of the rear axle MTZ 1221 and FDA drive
: 1 — control panel; 2 - steering angle sensor; 3, 10 — electric hydraulic distributors for controlling the DB and the FDA drive, respectively; 4 — pads; 5 - connecting cable; 6 — database control key; 7, 12 — signaling devices; 8 - loop; 9 — sensor for automatic control of the FDA drive; 11 — control key for the FDA MTZ drive.
The drive axle of this tractor is front, with planetary cyclic gears. This model is equipped with a frame awning that protects the equipment inside the cabin from rain, sun and frost.
2. Belarus MTZ is ideal for work in gardening, crop production and livestock farming 1221.3.
The tractor is equipped with a modernized transmission and can work with trailed and mounted equipment. Additional units are secured using a rear three-point linkage. Special towing equipment has been created for this model. The configuration features of the MTZ 1221.3 tractor allow it to be used in housing and communal services, for construction and industrial work.
3. MTZ tractor 1221.2
equipped with a transmission that transmits torque to all 4 wheels. This ensures high permeability on medium and low density soils. Belarus 1221.2 can be used for installation and construction work, since it is possible to install additional devices.
4. Agricultural work with equipment of class 2 and 3 will be carried out by a tractor model MTZ 1221.2-51.55.
It is equipped with a 100 kW diesel engine with the index “S” and a hydraulic lift.
5. Model MTZ 1221V.2
The Belarus tractor is distinguished by the presence of a reverse control post. This unit can work with plows, cultivators, mineral fertilizer distributors and other machines. The tractor is easy to operate because it is equipped with hydrostatic steering with a metering pump and two hydraulic cylinders. The automatic hydraulic attachment system regulates the depth of the cultivated soil. The fully glazed cabin allows you to control the work being done as safely as possible. In low-temperature conditions, it is possible to install heating systems.
6. The MTZ tractor is ideal for plowing and cultivating land, sowing and harvesting 1221.4-10/99.
The design of its front drive axle provides for planetary-cylindrical final drives. This tractor is easy to operate because it is equipped with a manual gearbox and a special mechanical travel reducer. To create comfortable working conditions, the machine is equipped with an air conditioning system.
7. Belarus MTZ 1221.4-10/91
characterized by increased operating power. The tractor has high cross-country ability, which allows it to be used for transporting goods off-road and in logging. The design of the tractor is simple in execution. This makes it possible to easily repair the tractor in any conditions.
MTZ 1221 is a tractor with very versatile characteristics. Regardless of modification, all models are capable of productively performing a wide range of jobs.
Fuel consumption standards for wheeled tractors
Engine reliability and power are beyond praise, perhaps this is the most durable unit in the MTZ tractor. And Belarusians just want to reduce the cost, although the tractor itself is becoming more expensive every year - inflation, they say. The engine has cylinders with a diameter of mm. There are 3 outputs for mounted and trailed equipment.
The tractor is especially voracious if you work with a cultivator or a five-furrow plow.
The MTZ tractor is equipped with a low-capacity battery, although this is hardly a secret to anyone.
To do this, perform a comprehensive diagnosis.
Increased fuel consumption, weak front axle and inconvenient rear glazing - this is also all about MTZ
Works with a plow and other accessories. In short, we changed the radiator, because there’s already enough dancing with a tambourine.
Factors affecting the fuel consumption of tractors Excessive fuel consumption or less than expected fuel consumption can be caused by several factors. MTZ-1221.2, MTZ-82-plowing.
More on the topic: Repair of the clutch clutch of the MTZ-80 tractor
