Quality Control of Maintenance Process of Passenger Cars Wheelsets


• Designing the quality control system of train wheelset
• Implementing the quality control system of train wheelset
• Wastage decrease, increasing the quality and reliability in train wheelset

Importance of the issue:

• Increasing safety in passenger cars operation
• Decreasing the passenger cars stoppage on the way
• Decreasing cost of train delay and wastage


• Documenting of manual and implementing of quality control process and warranty services for more than 29,000 wheelsets
• Creativity of the new control method and increasing the lifetime of train wheelsets from 107 days to 169 days in 15 months
• Control and inspection of 550,000 parts and dividing them to 3 groups of accepted, rejected and repairable
• Create the 27 quality control station for wheelsets in maintenance workshop
• Designing and using the quality control software
• Final control of more than 26,000 wheelsets and finding more than 2,100 defect in different parts of wheelsets
• Decreasing the wagons stoppage on the way (to zero) and wastage to 1/6