BartonStDavidSDJR

Thanks very much for your help, I have had a delve as much as I dare, but don’t really want to go any further, for fear of breaking a valuable model! I’ve sent it off to my local model shop to see if they can work out the issue-hopefully it’ll be running normally again soon.

One thing I forgot to mention above is that the gear on the driving axle can be moved round with the wheels. I know this isn’t meant to happen, so would that most likely be the cause of the issue?

Hi all, I recently acquired one of Bachmann’s SDJR 7F locos in the S&D blue livery. Since receiving it I have noticed one major flaw with the running quality, the mechanism will work fine and then will suddenly lock in place. I’ve tried to delve into the model as much as I can to try and find the issue, but with no such luck. The only difference I have found compared to normal locos is that I can push the driving wheels round - surely this isn’t meant to happen? I have also checked through the valve gear and con rods to see if anything is catching and it appears that all is well. Any ideas as to what the issue could be? Thanks in advance.