The programme lift includes an overhaul of the bogies, brakes, air and electrical systems, doors and a cab seat overhaul.
This is the first overhaul the team have done on our S Stock trains, which entered service on London Underground between 2010 and 2012.
Reaching the first milestone Our Railway Engineering Workshop (REW) at Acton, are preparing the first sets of bogies, ready to be used on trains one and two of the S8 programme lift. When the first trains are lifted at Neasden depot, the original bogies will be removed, and the new refurbished ones installed. The bogies removed from trains one and two, will then go to REW for their rigorous condition assessment and remedial works – to then be used on the next trains in the lift programme. This continual cycle ensures there’s minimal delays in the programme and the trains aren’t out of service too long.
The TfL Commissioner’s report on 3 February 2021 said that the first overhaul of S stock, which entered service between 2010 and 2012, has started with the S8 trains on the Metropolitan line, which have now completed around 1.25 million kilometres each. The work includes wheels, suspension, brakes, air and electrical systems, and cab seat. TfL expect to complete the overhaul of S8 stock by the end of 2022, after which the S7 fleet should be completed by 2026.