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21 Apr 2023

Home win for Slade Green 'Networker' overhaul team

Home win for Slade Green 'Networker' overhaul team: At work on a Networker - 2

  • In house approach to Networker overhaul enables trains to go back into service quicker
  • Year-on-year reliability improved or maintained on the fleet
  • Project which began in January 2021 completed ahead of schedule before end March 2023

A Southeastern engineering team slashed the time taken to maintain its key Class 465 Networker fleet by bringing the job in-house.

Instead of losing a train for up to three weeks while it was shunted to a depot hundreds of miles away, then brought back, Southeastern kept the heavy-duty C6 maintenance programme at its Slade Green depot in south east London.

For over two years between 2021 and 2023 a bespoke team of engineers spent a week on each unit carrying out procedures involving couplings, brake control units, suspension, components, seals and hoses.

The in-house approach for the 97-strong fleet saved Southeastern money, ensured that trains spent less time out of service and the team kept a tighter grip on quality control while forging strong links with parts’ suppliers.

Nick Hancock, Depot Manager for Southeastern at Slade Green, said:

“These trains are around 30 years old, and a lot of the technology, including electrical circuitry, isn’t around anymore, which means that there is some obsolescence. It’s a bit like running a vintage car for 400 miles every day and expecting its reliability to be what it was when it was new.”

“Year-on-year, they’ve improved reliability or maintained the status quo when compared with similar fleets across the UK. It’s testament to everyone who works in the Metro team. It’s one of the older fleets in the UK, but out-performs units 10-15 years younger.”

“Though we were streamlined anyway, this was innovative. We had to change our working practices from the way it had been done since 2013. The majority of those working on the project were ex-contractors who had taken on full-time positions, with many years’ experience using traditional methods of overhaul. The shunting team supported. We’ve maintained quality in-house.”

“This new approach has proved quicker, more reliable, and ultimately a better product for the customer – maintaining safe and reliable operation of these trains for years to come”.

The team of 10 are proud of the work they have undertaken on the Eversholt Rail owned trains.

In January 2021 when it was decided to prolong the life of the Networkers, the Slade Green shed had already been set up for mileage-based C4 maintenance. This meant C6 work being undertaken on traditional maintenance roads. With no pit to work from, colleagues had to adopt new procedures to split and join coaches, while undergoing fresh risk assessment.

C6 Programme Lead, Production Manager Steve Lloyd added:

“We were fortunate in that we had recently completed the C4 overhaul programme at Slade Green, along with a significant modification package on our Metro Fleets. We were able to use what we learned and apply these to C6. This helped us to develop new ways of working and improved communications, as well as formation of a cross functional management team with individual areas of responsibility.”

Contact information

Southeastern Press Office

0330 095 9091

press.office@southeasternrailway.co.uk

Notes to editors

The Class 465 (465/0 and 465/1) fleet was built by British Rail Engineering Limited between 1991 and 1994.

The C6 overhaul project for these 97 trains at Slade Green depot, completed between January 22, 2021, and March 23, 2023, showcased a significant milestone in efficient planning, resource management, and innovation in maintenance processes.

As the first in-house C6 overhaul project for Slade Green, it involved a comprehensive time-based maintenance programme, which is carried out every 10.5 years. It aims to ensure optimal performance and reliability of the units by replacing crucial components before they begin to fail at an increased rate. 

During the C6 overhaul, the following components were replaced:

  • Levelling valves
  • Parking brake check valves
  • All valves on the brake frames
  • Brake control unit
  • Driver's Safety Device (DSD) pedals
  • AWS reset buttons
  • Tightlock couplers
  • Leading end draft gear
  • Intermediate coupler assembly
  • Main compressor
  • Wheel Slide Protection (WSP) dump valves
  • Cab and saloon door regulators
  • Air hoses (compressor, intermediate, sander)

To optimise the overhaul process, the team at Slade Green in partnership with Eversholt Rail made several strategic decisions.

  • Avoided sending the units to another depot for maintenance, which would have required using translator vehicles and negotiating routes, incurring additional costs and extending downtime for each unit to approximately three weeks.
  • By performing the overhaul in-house, the downtime for each unit was significantly reduced to just 5-6 days, resulting in substantial cost savings and improved operational efficiency.
  • Another key decision was to avoid using the lift roads for the overhaul work. This choice helped prevent dedicating one of the two lift roads to the C6 overhaul for nearly two years, impacting other work and potentially causing delays to day-to-day operations at the depot. The team at Slade Green overcame this challenging by devising an innovative solution: manufacturing specialist lifting tables and cradles that allowed them to carry out the overhaul tasks without using the lift roads, ensuring that regular operations and other work streams at the depot continued without disruption.

Contact information

For further information contact:

Southeastern Press Office
0330 095 9091
press.office@southeasternrailway.co.uk
www.southeasternrailway.co.uk 

About Southeastern

SOUTHEASTERN is owned by SE Trains Ltd, a subsidiary of the Department for Transport’s public sector owning group, ‘DOHL’. DOHL has responsibility for three rail companies, LNER, Northern Trains Limited and SE Trains.

Southeastern is the trading name of SE TRAINS LIMITED. Registered in England under company 03266762. Registered office address: Second Floor, 4 More London Riverside, London SE1 2AU.

SE Trains Limited is a subsidiary of the Department for Transport’s Operator of Last Resort Limited - ‘DOHL’.

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