Freight wagon subassembly repairs – SOCIETATEA DE INTRETINERE SI REPARATII VAGOANE CARANSEBES SA

Wagon box repair

RudyMiculescu — Mon, 08 Apr 2024 13:30:02 +0000

The repair of the wagon box is carried out by specialized personnel, covering all components of the wagon box: side walls, end walls, pillars, doors, floor, top frames, as well as the elements of the wagon chassis. Repairing these elements involves locksmith and welding works. Welding is performed using MIG-MAG equipment and is carried out by authorized welders.

Brake subassembly repairs

RudyMiculescu — Thu, 04 Apr 2024 12:13:19 +0000

The repair of KE brake distributors is carried out in a dedicated workshop specialized for this purpose. Genuine spare parts from authorized AFER suppliers are used for the repair of distributors. The functionality of the distributors is verified before and after repair using controlled and registered stands, which are subject to certification by AFER.

Additionally, there is a verification/repair of air reservoirs, brake cylinders, valves, and air semi-couplers, brake linkage under the wagon, air conduits; all individually repaired brake subassemblies are reassembled onto the wagon and rechecked for final brake testing.

Mounted Axle Repair

RudyMiculescu — Thu, 04 Apr 2024 12:12:27 +0000

The mounted axles are the main subassemblies of the bogies through which the wagon can roll on the railway tracks. The repair of the mounted axle is carried out in a specialized workshop and involves the following operations depending on the type of repair needed:

Restoration of the rolling profile: This operation is performed on specialized equipment by turning.

Ultrasonic inspection of the mounted axle: The mounted axle is inspected using ultrasonic waves to detect any defects in the joints. This operation is carried out by specialized personnel, authorized by AFER, using state-of-the-art equipment (USM 36), which is approved by AFER.

Verification of the axle bearing bearings, an operation involving the dismantling of the bearings, washing them, inspecting their rollers and cages, checking the radial and axial clearances of the bearings on a specialized device subjected to AFER certification, reassembling them into the bearing boxes, and greasing them.

Repair of the bearing boxes: The operation consists of dimensional verification, if necessary, and involves rewelding/replacing the manganese plates that have cracked welds or are non-compliant in terms of their integrity.

For all axle components subjected to inspection/repair, depending on the type of repair, the measurement results are recorded by completing the obtained values in measurement sheets/verification certificates.

After completing the repair of the components and reassembling the axle, it undergoes corrosion protection, application of required markings, and delivery to be mounted under the bogie frame.

Bogie Repairs

RudyMiculescu — Thu, 04 Apr 2024 12:11:33 +0000

Bogies are subassemblies of wagons consisting of a set of elements through which the wagon can travel on the railway. The main components of bogies include:

Bogie frame
Mounted axle
Suspension elements
Brake linkage

During scheduled repairs, all these subassemblies are dismantled, inspected, and repaired as necessary. They are then subject to anti-corrosion protection before being reassembled. Post-repair checks are conducted on specialized stands, with appropriate devices. All stands, devices, and testing equipment undergo either certification by AFER or metrological verification. In the case of bogies, the mounted axle is repaired, the bogie frame is repaired and checked, non-compliant suspension elements are replaced, and worn brake linkage elements are checked and replaced as needed.

Y25 bogies, H bogies, and ORE bogies can be repaired. Bogie repair activities take place in a dedicated workshop.