Traction unit car (TMB) is multifunctional vehicle that is capable of: easy to move, as by road and by rail tracks, move the empty freight cars from the repair business to fit the station, also has the ability to produce clearance depot from snow, mud, debris, carry out the work of the usual freight transport. The engine – the drive unit cars (TMB) was is based on a universal chassis MTZ, equipped with air brake wagons, locomotive signaling system (ALSN). The engine used in the construction of a solid coupler fixed to the chassis frame. At night while hitch covers special lantern. TMB is typically on the rails at any railway crossing or suitable area with recessed rails. With the help of a hydraulic system mounted on rollers rails, lifting front axle TMB above the rail. The rear rollers are the pillars that prevent lateral shift of the rear wheels locomobile.
Tractive force is transmitted through the rear wheel drive car. The coefficient of friction rubber / steel is much higher than the steel / steel, which allows small portable engine transport convoys (up to 10 cars) without slipping drive wheels. The engine used in the construction of standard coupler, mounted on the chassis frame. At night, hitch covers special lantern. To increase the quality of the tires on the portable engine with a rail mounted bus road profile with a small figure. Special equipment in version of ‘portable engine’ is equipped only with a hydraulic system and a roller that allows you to save all the opportunities provided by construction of special vehicles, and make some new benefits associated with the possibility of traffic on the railway tracks. The engine design The design of portable engine largely depends on her function. Locomobile works must be equipped with a compressor unit with receiver, a significant amount (for the operation of the pneumatic brake system), coupler, and a system of mirrors for a review of the composition. Availability of data structural elements can also install Only a cargo platform to transport elementary or piece goods. Airborne platform for portable engine is made with reinforced floor, which allows to carry heavy objects without additional preparation.