Caterpillar heavy bulldozer "Chetra T-25" appeared on the domestic market relatively recently - in 2012. Since then, this machine has managed to establish itself in various kinds of earthworks from the best side. In any case, the feedback from this consumer bulldozer has earned very good.
Manufacturer
The domestic enterprise Promtractor, whose production facilities are located in Cheboksary, is engaged in the production of these machines. The construction of this plant began in Soviet times - in 1972, the first bulldozer left the assembly line in 1975. The plant has been supplying the tractor with the Chetra brand since 2002. Bulldozers of this brand are imported today, including abroad. Moreover, abroad, as in Russia, they are very successful.
What is used for
T-25 bulldozers are most often purchased by enterprises of the industrial and oil and gas complex. Also, this technique is quite in demand in:
In industry, these tractors can be used to develop soil categories 1-4. Moreover, sections 1-3 of the Chetra T-25 machine category pass without preliminary loosening. When working on category 4 soils, single-toothed or three-toothed cultivators can be attached to such bulldozers. Equipped with such attachments, Chetra are often also used to remove old pavement or perform other similar manipulations.
Machine description
Judging by customer reviews, the Chetra T-25 bulldozer, the technical characteristics of which will be considered by us in the article, is primarily distinguished by its functionality and ease of maintenance. The advantages of this machine include the fact that its powerful engine can be changed to motors from almost any other manufacturers.
Also, the Chetra T-25 bulldozer, judging by the reviews, is distinguished by good maneuverability. This modernized tractor with the main units based on the module is being manufactured. This makes the machine easier and more productive. Among other things, the Chetra T-25 engine is supplemented by special heaters that guarantee uninterrupted operation at low temperatures.
The hydraulic system of this tractor is controlled by an electronic panel. At the same time, it is regulated taking into account the load.
Developing this model, design engineers focused on its cross-country ability. This machine, among other things, has a reduced level of pressure on the supporting surface. Caterpillars at the same time on the bulldozer are installed extended with an increased number of rollers. It is not necessary to adjust the latter, as well as the onboard friction clutches, when operating the Chetra T-25 tractor.
One of the features of the T-25 is that with its use it is possible to carry out work on diagonal traction on absolutely any terrain. The blade to the hood of this tractor is approaching a minimum distance.
In addition to the base model, the company "Promtractor" produces several of its modifications. For example, the T-25 01 bulldozer is a fairly popular model among consumers. This model is primarily distinguished by its high productivity.
Technical characteristics of the T-25 bulldozer
This machine can operate at three speeds in both forward and reverse. The gearbox on this model is automatic. The semi-rigid tractor suspension has a three-point arrangement. This provides good draft characteristics and excellent traction.
The number of shoes on the Chetra T-25 tractor can reach up to 39 pcs. Their width is 61 cm, and the height of the lugs is 8 cm. The total supporting surface of this tractor is 4 m 2 . Also, the tractor tracks have the following characteristics:
For all its productivity and functionality, the dimensions of the Chetra T-25 bulldozer are not too large. The width of this tractor is 4.28 m and the length is 9 m. The height of the machine is 4.115 m. In this case, the weight of the tractor is 48.335 tons. The pressure on the supporting surface of this model, as already mentioned, creates very small. Therefore, the tractor can be used to perform work, including in areas with soft soils.
In the hydraulic system of the model, three gear pumps are provided, providing its high performance and functionality. Two distributors guarantee correct skew of the blade and stable position of the cultivator.
The depth of this model gives up to 69 cm. This indicator maximizes the productivity of the tractor. As already mentioned, loosening the soil using a T-25 bulldozer can be in one or three teeth.
Driver's cab
The T-25 model is not only distinguished by excellent operational characteristics. The engineers who designed this bulldozer also took care of the people working on them. The driver's cab in these tractors is equipped as comfortable as possible. At the driver’s workplace:
lighting;
heating system;
ventilation system.
The seats in the Chetra T-25 cab are soft. If desired, the driver can use a cigarette lighter or one of two outlets. Of course, a safety belt is provided in the tractor cab. The glasses on this bulldozer are double. The advantages of this model, consumers also include improved sound insulation. In addition, for the convenience of the driver, the cab is mounted on rubber shock absorbers. By an additional order from the enterprise, modern air conditioners can also be installed on the Chetra tractor.
Engine
Initially, the manufacturer installs YaMZ-8501.10 engines of the Yaroslavl Motor Plant on the Chetra T-25 bulldozers. The volume of this unit is 25.9 liters, and the capacity is 405 l / s. Fuel for the operation of the engine of this tractor diesel is used. In addition to the innovative cooling unit, the design of the YaMZ-8501.10 engine provides for a special Quantum system for its additional protection and diagnostics.
Characteristics The T-25 bulldozer engine has the following:
volume - 25.9 l;
power - 298 kW;
- arrangement of cylinders - V-shaped;
torque - 2230 Nm;
cylinder diameter - 140 mm;
rotation speed - 1800 rpm;
- number of cylinders -12;
diesel 4-stroke unit 6-cylinder imported.
Equipment
The manufacturer in the manufacturing process equips the T-25 tractor:
This makes the machine as versatile, productive and easy to operate as possible.
Operational Features
The Chetra T-25 bulldozer is easy to operate. According to the owners of such machines, their operation is facilitated, among other things, by the fact that the manufacturer in them reduced the likelihood of oil leakage. It is also very easy to change bearings on the hub in this tractor.
The owners consider the T-25 bulldozers to be a disadvantage of the not-so-perfect pump-out pump design. Unfortunately, during the operation of the tractor, it often breaks down. To prevent this from happening, it is recommended that owners of such bulldozers pay maximum attention to the maintenance of pumping pumps.
The characteristics of the T-25 bulldozer are simply excellent. Among other things, it facilitates operation and makes this tractor more productive because its design provides for a dump of increased capacity. Also, judging by the reviews, this part of the T-25 is very easily adjustable in terms of tilt.
Interesting Facts
The T-25 tractors used in our time are actually very widespread. For example, it was these domestic bulldozers that once participated in one of the largest construction projects of the zero - laying the Blue Stream gas pipes. This highway, which is very important for the country's economy, was stretched to Turkey along the bottom of the Black Sea in 2001-2002.
Also, T-25 bulldozers were widely used in laying the Sakhalin-2 pipeline. Two offshore oil fields were developed under this project. Its implementation began in 1996. The second phase of the project ended at the end of the 2000s. A pipeline was laid in those days to the southern part of Sakhalin Island, where oil terminals and a gas processing plant were then built.