Tractor T-25: specifications, description, device and reviews
The T-25 wheeled tractor, the technical characteristics of which we will consider today, first rolled off the assembly line back in 1966 at the Kharkov Tractor Plant. Since 1972, it began to be produced at the Vladimir plant, for which it received the second name "Vladimir". In 1973, a version of the T-25A was created, which has a more moderate "appetite" and took the place of the basic model of the T-25. machines made it popular in all areas of agricultural activity where a tractor of this class can be used. Let's find out what is remarkable about this device.
Peculiarities
"Vladimir" belongs to the 6th traction class, but its capacity is quite enough to perform a wide range of works on small farms. Depending on the type of additional attachments, the tractor can be used to solve the following tasks:
- Preparation of small fields for sowing and harvesting.
- Carrying out road and construction works.
- Works in gardens, greenhouses and vineyards.
- Serve as a drive for the feeder.
- Carry goods and provide loading / unloading. Of course, it is not as well adapted to this as the 25-T truck crane, the technical characteristics of which deserve genuine respect, but nevertheless. Do not forget that this is a 0.6 class device.
The machine is carried out according to the classic scheme: the motor is in the front, and behind it is the cab. is the leading one and is equipped with larger wheels than the front one. The tractor is relatively inexpensive and fully justifies its price. Therefore, it has become the most common machine for small farms.
Tractor device
The T-25 model, the technical characteristics of which will be given below, does not differ in design from most tractors of this class. This can be quickly understood by the appearance of the apparatus and the layout of the main units. But there are also unique features that only "Vladimir" possesses (or possessed at the time of release).
Body part
The load-bearing part of the tractor consists of two half-frames, a rear axle, a gearbox clutch and a clutch. Wheelsets can change the track width. On the front axle, it varies within 1.2-1.4 m, and on the rear axle - 1.1-1.5 m. This feature allows the tractor to perform varied work, including in cramped conditions. In order to increase the cross-country ability, lugs were installed on the tires. Another feature that makes it possible to operate the machine on difficult soils is the sprung suspension, which has the ability to double the wheels.
T-25 engine
The technical characteristics of the motor allow it to be unpretentious in operation and maintenance, as well as very economical. The two-cylinder engine mounted on the tractor is marked D-21A1. The power of the unit is 25 horsepower, the fuel consumption is about 224 g / kW * h.
Among the features of the motor, one can note a double automatic lubrication system and unpretentiousness in terms of lubricants. The automatic lubrication system works under pressure or spray. Fuel is supplied directly to the motor. Air cooling system. The engine is started by means of an electric starter.
Transmission
The mechanical gearbox in the T-25 tractor, the technical characteristics of which we are discussing today, is reinforced with a reverse and a power doubler. The tractor has eight forward gears (two of them are low gear) and six reverse gears. The peculiarity lies in the fact that the gearbox, differential and are assembled in a single block, which is called the transmission housing. The machine has a permanent single-plate clutch of the closed type. This scheme includes the power take-off shaft and the clutch itself.
Cabin
The hero of our conversation was arranged in a single cabin with two doors. The operator's safety was ensured by a frame that reliably strengthened the workplace. Wide rear-view mirrors and panoramic windows provide the driver with excellent visibility. The seat and steering column can change their position. The range of adjustments is small, but the very fact that they exist is already worthy of respect for a tractor of those times. Comfortable work at any time of the year was provided by a powerful heating and ventilation system.
Optional equipment
The hydraulic system "Vladimirtsa" allows you to install on it up to 600 kg of attachments. A gear pump station is responsible for its work. The tractor can be aggregated with cultivators, plows, semi-trailers, devices for harvesting potatoes and beets, as well as a dozer blade.
The most widely used agricultural equipment installed on the T-25 is the single-body plow. It is designed to work in small areas with shallow girders. The plow is mounted on three supports.
Tractor "Vladimir T-25": technical characteristics
In addition to the above, the machine has the following parameters:
- Dimensions: 2.8-3 / 1.37-1.46 / 1.3 m.
- Weight - 1.5 tons.
- The maximum speed is 21.6 km / h (in sixth gear).
- Maximum tractive effort - 0.7 tf (in first gear).
- The ground clearance is 43 cm.
- The crankshaft rotation speed is 1600 rpm.
- The cylinder diameter is 10.5 cm.
- The piston stroke is 12 cm.
Modifications
The T-25 tractor has been modernized several times. All models of the line did not have any special differences from the basic version. Changes, of course, were, but very minor.
Below are the most notable modifications:
- T-25A2... Roughly speaking, this is a lightweight version of the initial version. By changing the cab to a tarpaulin awning, the designers were able to somewhat reduce the weight of the car. On the one hand, this has increased the functionality of the tractor. But on the other hand, this measure excluded the possibility of using the device in the winter. In this case, the designers have provided for the possibility of replacing the awning with a metal cabin. However, as the reviews show, no one has done this. Most of the farmers only operated the tractor during the warmer months. This is not a crane "Klintsy 25-T", the technical characteristics of which make it possible to operate all year round.
- T-25A3... Creating this modification, the designers paid special attention to the safety of the driver. The cabin has received a more reliable frame. Thanks to this, in the event of a tractor overturning, the operator did not have to worry about his health. At the same time, the body of this version received a more modern look.
- T-25K... This model was specially developed for working in fields where tall crops grow. The power and functionality of the car remained the same, but its ground clearance was increased to one and a half meters.