The forestry sector, like any other,has its own characteristics. In particular, for the full execution of works related to the loading, unloading and transport of timber, special equipment is required, adapted to the performance of these operations. One of these universal machines is the skidder TT-4M tractor, the features of which will be discussed in this article.
This unit is truly unique andA high-quality product of Soviet engineering, which belongs to the fourth class. The main purpose of TT-4M is the removal of large and medium-length wood to the warehouse from the forest belt, as well as loading it onto platforms or railway trains in the form of large packages.
The tractor was produced in Altai.In the series, this car went to a place far from us in 1969. As a basis for the car was a rather popular tractor TDT-75. At the same time, a modernization was carried out, which allowed the use of newer parts that significantly increased productivity.
TT-4M, the technical characteristics of which are given below, is unified with another tractor - T-4A, which, in turn, is used in agriculture.
Skidding tractor has the following parameters:
TT-4M is equipped with a double cabin with seats,which are located to the left of the engine. At the same time, the driver of the tractor feels comfortable in the workplace, as the cabin has open doors and windows that open completely and can also be heated. In addition, there are glass cleaners and a fan. The driver's seat equipped with hydraulic shock absorbers can be easily adjusted in a horizontal plane. In the cockpit there is a place for a container with drinking water and first-aid kits. In the presence of a visor for protection from sunlight. Particular attention deserves a well-designed lighting system, which allows the tractor to work even at night.
The engine of the machine, in addition to its impressive power,It also has the best opportunities to work even in harsh climatic conditions, and therefore tractors are often used in northern regions of Russia and Siberia.
The bottom of the car was also improved andhas been applied to the protective layer. This innovation provided the possibility of protecting individual parts and components of the tractor from extremely negative abrasive and mechanical wear.
TT-4M was equipped with a loading panel and a two-sidedA winch with a pulling force of 122.3 kN. A well-thought-out arrangement makes it possible to maximize the convenience of skidding wood, as well as its loading. The maximum permissible load on the shield should not exceed six tons.
On the front wall of the tractor cab is locateda shield equipped with devices for performing the required list of operations and quality control over the movement of the machine itself. Nearby there are mechanisms that allow the operator to operate the radiator curtains. At the rear of the cab is a lever, which activates the drum of the working winch if necessary.
Unlike its predecessors, TT-4M receivedsome strengthening of loading units and frames. For example, the load projected onto the shield did not put pressure on the transmission and other connecting parts due to the presence of sufficiently powerful rear supports. To fix the specialized equipment, the gearboxes of the gearboxes, located on the frame, were equipped with special auxiliaries. If necessary, attach to the tractor can be rooting, rear hitch, pusher, bulldozer, drilling rig, ripper.
The transmission of the tractor was designed in such a way that it provided it with four speeds of backward movement and eight speeds forward.
TT-4M spare parts can not be called cheap.In many respects this is due to the fact that the machine has very impressive own dimensions and power. It is worth mentioning that the motor replacement alone can well cost 400-600 thousand Russian rubles. The very same tractor, produced in the period until 2000, will cost about 07 - 1.1 million rubles. The new model has a cost of almost 2.5 million rubles.
