Update!
This week we started our Traction course at Ilford Depot, learning about the Class 317 Mark 1 & 2, absolutely bags of information here. The week mostly consisted of being in a classroom in the mornings and after lunch going out onto a unit to visualise in person what we had learned.
Over the week we learned about the air system, the electrical system, suspension system and everything in between: pantgraph, transformer, wire 13, fault panel(s) inside the train, VCB, braking system, compressor reservoirs underneath the train, isolation levers, coupling pipes, auxiliary compressor etc along with what happens when they go wrong etc.
I must say, at times in the classroom I almost felt like I was on an engineering course! However I do realise the importance of knowing what to do when in need or asked to by the actual engineers to get the train moving again as soon as (if) possible.
Going out onto the train and putting into practice what we have learned really does help cement the knowledge and makes a lot more sense!
Very enjoyable learning experience as it's more practical, I believe for the 3 weeks left of traction we will be out on the trains for almost all of it.