Hitachi – Wheel Load Balancing and Vehicle Levelling

Hitachi fleet engineers keep the high-speed class 395 fleet in optimum condition through practical application of the best technologies in the UK railway industry. This improves derailment safety, reduces gauge infringement risk and extends wheel lives.

For the past few years, we have collaborated with Hitachi to improve vehicle suspension on the class 395 fleet. With ExcelWraps, Hitachi can blend analytical skills with a practical approach to achieve a twelve-fold reduction in man-hours and a deeper understanding of vehicle suspension systems.

 

 

The interaction between primary suspension packing, bogie frame stiffness, influence of anti-roll bars, air suspension and levelling system is complicated. ExcelWraps makes this easy when delivering responsive work instructions to the depot floor. The Wrap always gets it right the first time and vastly improves the traditional trial and error approach.

  • All measurements and adjustments are recorded along with digital signatures to a cloud database.
  • Through the cloud, all fleet records can be seen from any device at any location at any time, which provides an unprecedented level of transparency in the rail industry.

The process developed is applicable to any railway vehicle.

Andy Armstrong is the Chief Wrap Creator at Hitachi’s Ashford Train Depot. Andy knows everything there is to know about overhauling the high-speed class 395 trains. When Andy set about building his ExcelWrap system, he did so knowing this complex process intimately. Whilst the process is complicated, implementation of the ExcelWraps solution is straightforward.

Some 215 electronic forms or “Wraps” have been deployed to cover the engineering process both on and off site. At a glance, Andy can see what is happening at subcontractor sites in Manchester, Doncaster as well as at the Ashford site itself. All the information gathered in the cloud can be easily interrogated to investigate engineering problems and to build a case for equipment life extension.

When the overhauled train is returned to service, it does so having being signed off by 205 users, each with their own specialist accredited competence. Ready access to information and the built-in user competence is transforming Hitachi’s business.

Wabtec Rail – Bogie Overhaul

Eversholt’s CL321 Bogie Overhaul process is one of many processes supported by ExcelWraps.

  • We set up a separate workgroup called ‘Bogies’, where workgroup administrators can add new users, assign competencies and reset passwords.
  • Using the job matrix all the sign off wraps for eight bogies on a particular unit are ‘pre-populated and initialised’.
  • Reports were embedded in convenient ‘Go’ buttons.
  • Progress is reported at three levels: the whole unit progress, individual bogie progress and the progress for each of six stages in the overhaul process.
  • Additional Arising Work (AAW) can be accessed by the production team, the project management team and the client team (ROSCO and TOC) to resolve AAW issues quickly. It requests permission to proceed from the client or the project team, it records the work done and collates the man and material costs. This approach was developed for Brush Traction and adapted to bring the best working practices across Wabtec.

The solution took just two days to roll out. It is detailed in the video.

 

Brush Traction – free from the burden of paperwork

Brush Traction use ExcelWraps as a platform to roll out their digital strategy. ExcelWraps delivers work instructions to the shop floor, captures digital signatures and adds photo/video descriptions of snags. Data is immediately available to share across the business, advising clients on any problems they encounter.

ExcelWraps gives Brush Traction not only a competitive advantage but unprecedented levels of efficiency. Their system handles Class 158 overhaul for East Midland Trains/Angel Trains. It took just two weeks to develop and release to the shop floor. Working on any kind of device (laptops, tablets, phones), ExcelWraps is releasing the railway industry from the burden of paperwork.