In detail: do-it-yourself repair of a small cab mtz 80 from a real master for the site my.housecope.com.
The cab is the part of the tractor in which the tractor driver is located during work. All controls are located in it.
Working 14-16 hours a day during spring field work, the tractor driver must be in a comfortable and safe environment, where all the necessary noise, vibration, dust content, as well as a comfortable temperature and microclimate are observed. Cabins of modern tractors make it possible to fulfill all these requirements and protect the tractor driver from the external environment.
Tractor driver's work is not easy. In the process, strong shaking, a large amount of dust, and a high ambient temperature are inevitable. Therefore, the cab design must fully meet all the requirements for the tractor driver's workplace, for his working conditions. A sealed design is important here, preventing the ingress of dust and moisture. The equipment installed inside the cab should create a comfortable temperature and microclimate in the tractor driver's working area, and a large glazing area will provide excellent visibility.
Attaching the cab to the tractor frame through rubber shock absorbers reduces the level of noise and vibrations transmitted from the engine and transmission during operation. The height-adjustable seat and steering wheel of the tractor will comfortably accommodate both a short driver and a tall tractor driver.
Cabs that are installed on MTZ tractors are divided into two main types:
unified cab of the UK;
small MK cab made with reduced overall height.
Video (click to play).
In conditions when the tractor is used primarily as a row crop, as well as in other cases where the height does not play any role, unified UK cabins are used.
Convenience of the cab - in a large space above the head of the tractor driver, which in some cases is of no small importance. But very often the height of the cab, and with it the entire tractor, is of decisive importance. Such situations usually arise when the tractor is operating in different rooms. These can be warehouses, buildings for keeping livestock, as well as other buildings and structures. In such cases, machines with a small MK cab are used. The installation of such a cab reduces the overall height of the tractor by 300 mm - from 2850 to 2550 mm - and makes it easy to use it in a wider range of tasks.
In terms of interior arrangement, both cabins are practically the same. They are equally comfortable and convenient for the driver, are interchangeable and the replacement of one type for another does not require any changes and alterations in the tractor design.
The cab of a modern MTZ tractor has a rigid frame and a fully sealed structure. It is attached through rubber shock-absorbing cushions, which significantly reduces the vibrations that occur during operation. The heating and ventilation unit provides a comfortable temperature and microclimate of the interior space, and if you wish, you can open the sunroof or the rear window located on the roof. A comfortable fit of the tractor driver is provided by a torsion-bar seat with a hydraulic shock absorber, adjustable for the driver's height and height.
The cab is equipped with a sun visor, a lighting shade, and coat hangers. The convenience of getting in and out of the car is provided by steps and handrails, as well as a folding steering wheel. The steering column is also vertically adjustable, which allows you to choose a comfortable position for a tractor driver of any size.
The set includes a first aid kit and a water container.Also, MTZ tractors can be equipped with air conditioning, which is extremely important when working in the summer. Mirrors are located on the outer frame. With the help of a special device, it is possible to fix the tractor doors in the open position, which adds convenience when the driver gets into and out of the tractor.
A distinctive feature of the cabins of the MTZ tractors is their excellent visibility. It is achieved through a significant degree of glazing in its elements - a large windshield and side windows, almost completely glazed doors, a rear window, and even a sunroof. There are additional observation windows on the walls of the cab. Large adjustable rear-view mirrors located outside the cab also add visibility. In any situation, the tractor driver has the opportunity to see almost everything that is happening outside, which is especially important both during field work and when working inside buildings and structures, when work is carried out in a confined space and the driver needs to “feel” the dimensions of the tractor with great accuracy.
The design of the MT3 tractor cab allows you to almost completely eliminate "blind" visibility zones for the tractor driver and provide excellent visibility in all directions. During precipitation, electric type wipers installed on the front and rear windows of the cab will help. They have several modes, from which you can always choose a convenient one, depending on the intensity of precipitation. Thermal absorbing glass is used for the glazing of the cabin, which avoids excessive heating of the air inside the cabin during the hot season.
In the manufacture of cabins for MTZ tractors, modern high-quality and environmentally friendly materials are used. This applies both to those materials from which the supporting part of the frame is assembled, and materials for interior decoration. The cab is made of sheet steel and has a frame structure. The strength of the materials and precise design calculations ensure the safety of the tractor driver in critical situations, such as overturning and even overturning the tractor.
Finite element model of the MTZ-5 tractor
It is also important what materials are used for the interior decoration of the tractor cab. For its arrangement, modern sound-absorbing and heat-absorbing materials are used to sheathe the interior space of the cabin. There are rubber carpets on the floor to fix the feet in the desired position and prevent them from slipping off the pedals.
All materials used in the manufacture of cabins are certified and comply with environmental standards and are safe for the life and health of the operating personnel. The materials from which the interior trim elements are made have neutral gray colors, which do not irritate the eyes and do not distract the tractor driver from his work.
The instrument panel is used to control the operating parameters of all the main components, assemblies and mechanisms of the tractor. It is located on the front panel of the cab right in front of the tractor driver's eyes and includes a standard set of instruments and warning lights. These are a speedometer, an oil pressure and engine temperature gauge, control devices for the on-board electrical network and others.
The devices have a familiar round shape and are located in an easy-to-read combination. A quick, experienced glance at the instrument panel is enough to adequately assess the parameters of the tractor's systems. If any indicator is out of permissible limits, bright warning lamps immediately signalize, allowing you to make a decision to stop the operation of the machine and start troubleshooting the problem.
For work in the dark, the instrument panel has a light illumination, when turned on, the readings of the instruments are easy to read. All devices are of the dial type with a scale divided into zones.Under normal operating parameters of the tractor mechanisms, the instrument arrows should be in the green zone of the scale. The exit of the instrument arrows from the green zone indicates deviations in the operation of the tractor. In this situation, work stops until the problem is clarified and eliminated.
Correct and convenient arrangement of the controls is of paramount importance in the convenience and safety of tractor control. This applies to both the control of the main working operations of the tractor and auxiliary functions, such as headlights, control of wipers, interior heating and others. The floor of the cab contains the brake, clutch and accelerator pedals. The control pedals are equipped with rubber pads that ensure the fixation of the leg and prevent it from jumping off, which is an important detail in terms of ensuring safety.
To the right of the driver are the tractor operating control levers. They are located ergonomically and conveniently, which increases the precision of control mechanisms. For clarity, a diagram of the purpose of the levers, combinations of their positions and combinations is located in front of the driver's eyes.
The steering wheel is of a comfortable size, fits well in the hand and has a horn button in the middle. Below the steering wheel are the direction indicator switch and the washer switch. The controls for the auxiliary functions of the tractor are also conveniently located. The switches are located on the instrument panel in an easily accessible place and have a light indication of switching on.
The microclimate in the tractor cabin is of particular importance. In summer, when the tractor is constantly operating in the open air, the temperature inside the cab can reach 50-60 degrees Celsius. The air conditioner significantly lowers the temperature in the cab to an acceptable 23-25 degrees, providing a comfortable environment for the tractor driver. A modern multi-stage filtration system is used to clean the air entering the cabin. This is extremely important, since during field work there is a significant amount of dust outside the tractor, which can often contain chemical elements that are harmful to the respiratory tract. This applies to work with fertilizers, chemicals for pest control of others.
The air conditioner has two main versions:
During work in the autumn-winter period, the air inside the cabin must, on the contrary, be warmed up to a comfortable temperature. This task is perfectly handled by a powerful stove connected to the tractor engine cooling system. The stove has several modes of operation, which allows you to set the desired temperature regardless of the weather outside. The stove also plays another important role - preventing the glasses from fogging up during precipitation in the form of rain and snow. In the warm season, the stove can be disconnected from the cooling system using a special tap.
Sooner or later, there will be cases when it is required to dismantle the tractor cab. This is sometimes necessary both for repairing the cab itself, and for gaining access to some components and assemblies of the tractor, such as the rear axle, gearbox, clutch and others. The cab can also be removed if it is replaced with a new or similar one.
Dismantling the MTZ tractor cab is a rather laborious process, therefore it should be carried out by specialized repair enterprises with the necessary equipment and qualified trained personnel. But if necessary and the presence of lifting equipment, this work can be done independently.
The procedure for removing and installing the cab is described in detail in the repair documentation for the tractor. To dismantle the assembly, remove the rear radiator cover and disconnect the control rods. After that, the control pedals are dismantled and the cab mount to the brackets is disassembled.Then disconnect the starter wire and disconnect the instrument panel.
Next, the handles of the gearbox and the reduction gear are removed, the handles are removed from the control levers of the reduction gear and the gearbox. Then the tachospeedometer cable, signal wires and headlights are dismantled. After removing the rug and floor box, you need to start removing the fuel pedal. After that, the floor is removed. To do this, first unscrew the fastening bolts inside the cab and below it. Next, the sector and the power regulator lever are removed. Then, by disconnecting the wires and removing the batteries, the tractor cab is removed with a lifting mechanism. After carrying out the repair work, the cabin is installed in its original place in the reverse order.
During operation, it is necessary to carefully and carefully monitor the condition of the tractor cab, to carry out the necessary maintenance in a timely manner. Much attention is paid to this state of metal parts and paintwork. Minor scratches and other damage must be removed immediately to avoid the development of corrosion. You should also periodically carefully inspect the glass seals for leaks. Replace damaged seals immediately with new ones.
You should periodically pay attention to the state of heat and sound insulation. Operation of the cab with broken or cracked glass is not allowed. Such glasses must be replaced with new ones. Tractor door hinges should be periodically lubricated with grease.
Repair of the MTZ tractor cab after damage as a result of accidents or overturning of the tractor should be carried out in specialized repair shops with the appropriate equipment. Such workshops can also provide advice on the suitability of a damaged cab for repair and the feasibility of replacing it. Small cosmetic and technical repairs of the tractor cab can be performed on your own due to the good maintainability of MTZ tractors even in the field. During the work on the removal and installation of the cab, it is necessary to be guided by the documentation for the tractor, as well as to strictly comply with the requirements of safety regulations when performing these types of work.
Many farmers ask how the MTZ cabin is made with their own hands. The arrangement of cabins is improving every year, including the MTZ-82 Belarus tractor. The Minsk Tractor Works designs the cabins of machines to improve the working conditions of the tractor driver.
However, no one is immune from breakdowns, so you will have to repair the cab, perhaps with your own hands. Repairing the cab, altering it or reworking it with the help of qualified workers will not be cheap, and it is quite possible to do the work yourself. In addition, on cabless tractors, you can also make a cab with your own hands. A home-made cab for a tractor is convenient, cheap and reliable.
What you need to know about the installation of a home-made cab MTZ-82, MTZ-50 and T-40?
The most important thing to pay attention to when deciding to install a home-made cab at MTZ is the quality of the materials. Design changes can be made to make it even cheaper. First of all, you need to decide what material will be used for the main part of the frame.
So, making the project of the cab at MTZ home-made, one can take into account that the glass in the lower part of the door is an optional element, and it is quite possible to refuse it. This will make the structure more durable, as there is no risk of the glass breaking.
First you need to thoroughly prepare for work, namely:
Arrange a spacious work space.
Prepare the necessary materials: steel sheets (1.2-2 mm), square pipes, glass (front, rear and side), screwdriver, tools for carpentry and joinery, welding machine.
Let's consider how the MTZ-50 cabin is created with our own hands.It is done in the same way for any other tractor.
The most common design mistakes are miscalculations when planning the filling of the booth.
So, not everyone takes into account that the floor in the MTZ-82 cab should not be laid evenly, but in steps. The first stage is needed in order to move along it; it is also possible to provide a niche for the battery in it (in the event that the MTZ-82 cabin implies the use of a starter). On the second step there will be a platform for the driver's seat. The third step is needed in order to play the role of a kind of armrest. A passenger can also sit on this step, since the width of the ledge will allow it to do so.
It is also worth considering that you first need to purchase a car seat, and only then plan the height of the ceiling. The chair should not be too high: in this case, it will interfere with assessing the situation from the back, if necessary. When all the nuances are taken into account, you can begin to design a homemade cab for MTZ-80, 50 or another tractor.
First, a drawing and a work flow diagram are created. First of all, you need to weld the front of the cab, taking into account the tractor windshield. To do this, it is necessary to make a glass contour from a sheet of plywood with a margin for the gasket. The same must be done with the rear wall, only after that take measurements of the side parts of the tractor and its doors. The side parts must be equipped with opening glasses, which can be purchased from specialized stores. This will make the work on the tractor more comfortable, it will be possible to ventilate the room.
After measurements, you can proceed to designing a frame from a bar. Square tubes should be exposed along its outer contour, after which the parts are spot welded. After specifying the measurements, it is necessary to proceed to welding the glass openings. Welding must take place on a flat surface.
Before facing all parts of the tractor, you need to decide on the height: the ceiling must be at least 20 cm higher than the driver. After all the calculations, the height of the racks is determined, on which the main load will be distributed. Only after all these procedures can you begin to make a tractor roof from a steel sheet (2 mm) and a tube (diameter 100 mm). The tube is cut lengthwise and a steel sheet is welded to it, which will play the role of a roof in the future. After that, the entire cabin is welded and the mirrors are installed.
After the welding of the parts, smaller work takes place, for example, the installation of locks in the doors. If the lock is easy to install from the outside, then the mechanism located inside requires improvement. On the inside of the door, where the lock is located, you need to weld or screw on a latch with a spring, and then attach it to the lock.
The dashboard can be borrowed from a tractor, connected to wires and get a ready-made remote control located on a metal case. The same should be done with the stove, which is needed in winter. 2 nozzles are removed from the stove: one goes to the windshield, and the other will blow out air. If the cabin is sealed, then it will be necessary to ventilate it from time to time to remove excess moisture.