Abstract: A railway truck assembly for performing a number of functions of repair, maintenance, replacement and other railway-orientated functions has a pair of trucks joined by one or more longitudinal beams which support hoists; the beam is pivoted for angular horizontal movement to accommodate curves in the track during transit and the beam having a length which spans a working space between the trucks and for the hoists to lift or deposit items or material from either or both trucks and transfer them to or from the working space.