In order to solder and repaint the cages it was necessary to remove the corridor and shelves. The shelves were just epoxy glued to the channelling and came off quite easily but the tight fitting corridor sections had been detailed with kit parts that effectively locked them into the brass work. In order to get them out I had to remove all the kit bashed detailing on the top and bottom panels. This had to be done very carefully as the plastic parts were very fragile and were just about ready to fall apart, but with a bit of persuasion I managed to get them all off. These parts were attached to a piece of card using double sided tape with small diagrams indicating there original positions so that I could put it all back together again .The corridor sections were now extracted and cleaned up using a toothbrush to remove flaking paint and dust, however the pieces still look rough because various resprays over the years have trapped a lot of dirt under the paint. The brass cages were rubbed down with fine wet & dry paper to remove the outer layers of dirty and loose paint, then the breaks were soldered and the unit resprayed.