Tom,
You would know. Mine was sparking in the gap between the TT and the track. The two motor engine would stall half way in.
I sent an email to Atlas customer service about it. Maybe they will eventually update their instruction sheet.
I’m not an electrical expert but I knew something was amiss.
I really like this forum. Lots of people willing to share info. I don’t feel like I’m in this alone. I have some experience but there’s always something cropping up.