Hornby Ringfield motor upgrade kit - fitting tutorial part 1

Fitting tutorial for Hornby motor upgrade kits, which can be bought here.... https://www.ebay.co.uk/itm/143867454959 BoBo fitting demo by Chadwick Model Railway...    • Replacing Loco Motors at Chadwick Model Ra...   Items used during fitting... Oil dropper - https://www.amazon.co.uk/Modelcraft-P... Soldering iron - https://www.amazon.co.uk/gp/product/B... Solder - https://www.ebay.co.uk/itm/193496500114 Flush cutters - https://www.ebay.co.uk/itm/164231966879 Wire strippers - https://uk.rs-online.com/web/p/wire-s... 2mm punch - https://www.amazon.co.uk/Facom-FCM249...