Preparatory work on the boiler of number 155 has begun in Pretoria with the old tubes being removed and the tube plates and boiler internals thoroughly cleaned.
We now have the specifications for the Gas Producer Combustion System (GPCS) inlets on each side of the firebox which comprise a hollow boiler stay with a steel insert.
Our picture gallery shows arrival in Pretoria and work on removing the tubes and cleaning the boiler in preparation for the retube.