A4 Mallard DCC with not cross my electo frog points,

[Chrissaf]

I assume it has got to be that the Mallard has a four wheeled tender, with the space between the wheels greatly reduced on the tender, as it turns around the curve it shorts. I had a similar issue on my layout with a large radius point and certain Bachmann diesels. What I did was isolate the frog of the point by cutting the links and use one of those autofrog devices, that fixed it.

[Chrissaf]

Hi, I have a factory fitted DCC A4 Mallard which will not cross my electrofrog points

it shorts out at the frog and sometimes I have to re a sign the decoder.

all my other locos lincliding the  Hogwarts and mauld loco with sound work fine and can cross the points 

so it must be the loco

i have fitted frog wires and insulated joiners as instructed to the point turnouts

any ideas please guys would be appreciated

 

thanks Andy