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High-tech wheel monitoring arrives in London: Metronet Rail is introducing a state-of-the-art system to monitor wear and detect faults on the wheels of trains operating on London Underground''s sub-surface lines. The objective is to change from reactive to preventive maintenance.

Article Excerpt
METRONET Rail is responsible for maintaining and upgrading two-thirds of the London Underground (LUL) network under the public-private partnership (PPP) with LUL. Metronet is investing 15 million [pounds sterling] to improve the management of Fain wheels on its sub-surface fleet operating on the Metropolitan, Hammersmith & City, Circle, East London and District lines. The project is due to be completed in spring 2005.

There are two key elements to the programme: the installation of a new wheel monitoring and fault detection system by Talgo, Spain, and a new underfloor wheel lathe being supplied by Hegenscheidt MFD, Germany, to correct any defects and maintain profiles. The Talgo system is being installed at three depots: Neasden, Upminster, and Hammersmith to cover the three different fleets of trains operating on the subsurface lines. Upminster depot is being equipped with the new Hegenscheidt MFD tandem-head wheel lathe, while the...

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