During the journey he covered 1300km with no mishaps except one puncture and a leaking radiator header tank.

Later apparently about mid-1925, a more "Integrated" appearance was achieved with the radiator header tank and side panels widened to accommodate the shutter within the radiator shell.

A new radiator header tank has been donated by Dave Hawkins from South Wales who is an AEC Society member.

As a result of this, the locomotives were equipped with new radiator header tanks which were mounted behind the radiator on top of the engine hoods in a 'north-south' alignment.

All further DSC class locomotives equipped with the refuges had their engine hoods shortened by 500mm, necessitating the relocation of the radiator header tanks to their present 'east-west' alignment.