My Grange was supplied with an out of date Operating & Maintenance instructions, showing old style loco/tender drawbar with no DCC leaflet included.
I have spent the last week trying to get some sense from Hornby but until now had only managed to establish that socket is in tender. From Chris's comment & photos the tender appears be similar to the Hall Churchward tender but with coal load being different.
18 months late and inadequate instructions - I this was supposed to be issued when the 'betting shop bloke' was in charge.
Hopefully I can now fit my chip without damaging the model
Regards