[davski]

Recently bought a second hand Class Triang 40 075 Diesel and, although it did run briefly (albeit not that well), it has now given up the ghost (not even any humming/vibration). I noticed that the wheels are pretty filthy and when I removed the outer casing from the chassis I noticed that one of the copper spring contacts had popped off its plastic retaining 'pin' (which itself may have broken off) and is therefore not really pressing on the wheel with any real conviction. Could this be the cause of the failure? Anything I can do? New contacts? A good clean? Bit of superglue?!
Any help would be brilliant - it wasn't a huge investment but I do rather like it.