three truck shay

[bob kaplan]

I have been thinking about purchasing a Bachmann 3 truck shay.   Reading the review in Garden Railways raises a question.   The end of the article ends with the following: " Note:  there is an issue that customers should be aware of regarding the wiring, which left unattended to, may preclude the need to return the unit for service.  A full tutorial with pictures is available on our website:"  a link is provided that does not work.   

Does anyone know what that problem might be...and if it has been corrected in the models that are on shelves at the present time?   Thank you the help.