Power supply change at Acton Central in August 2002

[@therickychannel6292]

What's the clicking noise from the wheels

[@DesElmes]

Good vid, though the graffiti on 313107 is a pity. All three of these units were transferred from the Overground to Southern, and only now (May 2022) are they coming to the end of their very long careers.

[@frankhardy5115]

Good little video. Change power settings now. Squeaky breaks on that one.⚡⚡🚃🚃🚃🚃⚡⚡⚠️