This machine have a unique three-rail lifting device and pivoting universal tamping units enable complete, careful and fast treatment of switches and crossings. The quality of track tamping is identical to that of plain line tamping machines.
A welded construction of rolled profiles and steel sheets assembled using the most up-to-date welding techniques. The main machine rests on two 2-axled bogies with an articulated connection to a single action material car. The arched longitudinal beams of the frame in the area of the work units provide freedom of movement and an excellent view onto the work units.
The machine has three enclosed, soundproof cabins and the cabins at the rear and front-end house all operating and monitoring controls for transfer travel. The cabin facing the work units contains all operating controls for work. High operating comfort is achieved with soundproofing and vibration absorption. The cabins are entered via access at the side and safety platforms. The work cabin is reached via a connecting passage from the front platform. An intercom system between the cabins is provided.
The undercarriage of the tamping machine consists of two 2-axled bogies. They are sturdy enough to take the heavy wear during work and they also guarantee good running Qualities during transfer level. The wheel set material complies with the UIC code. For transfer travel the machine is equipped with a hydrostatic drive acting on the front bogie via power shift and reversing transmission. The working drive is transmitted hydraulically to three axles.
Two heavy-duty tamping units working independently of each other are located in front of the rear bogie. Each unit carries eight side tilting tamping tines which are positioned outside and inside the rails on each side of the sleeper. The pivoting suspension of the tamping units was developed to achieve the same excellent tamping quality in switches and crossings. This makes it possible to adjust both tamping units with a single movement to sleepers lying in slanted position. This technology enables a further increase in quality and performance. On this unit, the lifting hook is applied in switches and crossings either at the rail head or the rail base. On plain track lifting is performed by roller lifting clamps using two rollers per rail. Lining is carried out using two flange rollers per rail. The machine is equipped with the proven proportional leveling and lining measuring systems. On this system the lifting or lining speed runs proportionally to the size of lifting or lining value.
For careful treatment of sleepers and rail fastenings when lifting heavy switches, the three-rail lifting technique has been introduced. This additional equipment, which is used in the area of the long sleepers, enables the third rail to be lifted without any support on the ballast bed. Depending upon the design of the switch, it is possible to extend the telescopic lifting beam either to the left or to the right. The additional lift is controlled automatically from the machine, jointly and synchronously with the other lifting movements. The positioning of the telescope-lifting beam of the jib arm and the roller clamp is performed hydraulically. The automatic synchronous three-rail lifting achieves careful handling of the sleepers and rail fastenings.